TWI576687B - Heat dissipation device - Google Patents

Description

Heat sink

In particular, the present invention provides a method for utilizing an expansion portion of a duct of a pipe body to change a flow velocity and a pressure of a gas flow, and destroying a boundary layer of a heat dissipating convex surface of the heat conduction wall, so that the air flow is easy to dissipate the heat dissipation convex portion of the heat conduction wall. The heat is removed, and the heat sink that greatly enhances the heat dissipation effect.

According to the continuous advancement of the technology industry, the performance and efficiency of electronic components are constantly improving. However, under the demand of high performance and high efficiency, although the operating speed of electronic components is increased, the heat generation of electronic components is also increased. The operating temperature of electronic components is closely related to its reliability and service life. Therefore, how to effectively improve the heat dissipation capability of electronic components has become a key issue.

Conventionally, the heat dissipation method of electronic components such as LEDs or CPUs is generally connected to the heat dissipation fins of the electronic components, and when the electronic components act to generate heat, the heat generated by the electronic components is transmitted to the heat dissipation fins, and the heat dissipation fins are passed through the heat dissipation fins. The film is naturally dissipated; however, the heat dissipation fins have a limited heat dissipation effect, which often makes the electronic components unable to dissipate heat efficiently. In particular, the power of the electronic components is continuously increased, and relatively more heat is generated. However, the way in which the heat dissipation fins naturally dissipate heat will not be sufficient for the electronic components to dissipate quickly and efficiently, which affects the efficiency and service life of the electronic components.

In order to solve the above-mentioned shortcomings, the manufacturer has developed a method of forced convection to dissipate heat; as shown in FIG. 1 , the conventional forced convection heat dissipation device includes a heat sink 10 and a fan 20, and the heat sink 10 is provided. The plurality of pieces are connected to the heat dissipation fins 11 mounted on the electronic components such as the LED or the CPU, so that the heat of the electronic components can be transmitted to the heat dissipation of the heat sink 10. On the fin 11 , a duct 12 is disposed between each adjacent fin 14 , and a fan 20 is disposed at one end of the radiator 10 , and the fan 20 generates a wind that flows through the radiator 10 . The airflow in the channel 12, and the heat of each of the heat dissipation fins 11 is removed by the airflow to achieve the heat dissipation effect; however, when the airflow flows through the air ducts 12 of the heat sink 10, the airflow is viscous due to the airflow. The influence of the heat-dissipating fins 11 on the surface of each of the heat-dissipating fins 11 is such that the heat-dissipating fins 11 are not easily removed by the airflow, thereby affecting the heat dissipation effect of the heat sink 10. Although the heat dissipation method of forced convection has better heat dissipation effect than the natural heat dissipation method, it is still insufficient for the electronic component to dissipate heat quickly and effectively, which affects the efficiency and service life of the electronic component.

In view of this, the inventor has been engaged in research and development and production experience of related industries for many years, and has conducted in-depth research on the problems currently faced. After long-term efforts and research, he has finally developed a heat sink to effectively improve the prior art. Disadvantages, this is the design tenet of the present invention.

An object of the present invention is to provide a heat dissipating device which is provided with a wind tunnel having a wearing portion and at least one expanding portion in a tube body, and is provided with at least one heat conducting wall, and the heat conducting wall is provided on the outer side. An assembly portion for connecting and mounting electronic components, a heat dissipation convex portion protruding from the expansion portion of the air passage is disposed on the inner side, and a flow guiding member having a spiral blade is sleeved in the insertion portion of the air passage of the tubular body And providing a blower in the air passage of the pipe body to generate an air flow in the air duct of the pipe body, and using the spiral blade of the flow guiding member to guide the air flow in the air channel of the pipe body to make the air flow Circulating in a spiral path to the insertion portion and the expansion portion of the air passage of the pipe body, thereby transferring heat of the heat dissipation convex portion of the heat conduction wall; thereby, utilizing the expansion portion of the air passage of the pipe body to make the air flow The flow rate and the pressure change, and the boundary layer of the heat-dissipating convex surface of the heat-conducting wall can be destroyed, so that the airflow can easily remove the heat of the heat-dissipating convex portion of the heat-conducting wall, thereby achieving the practical benefit of greatly improving the heat-dissipating effect. Practical purpose.

A second object of the present invention is to provide a heat dissipating device that is tied to the wind of the tube body. The flow-through member with a spiral blade is disposed in the inner portion of the tunnel, and the airflow in the air passage of the tubular body is guided by the spiral blade of the flow guide member, so that the airflow flows through the wind of the tubular body in a spiral path. In the piercing portion and the expanding portion of the channel, the heat of the heat dissipating convex portion of the heat conducting wall is removed, and the flow velocity and pressure of the air flow are changed by the expanding portion of the air duct of the pipe body, thereby breaking the heat conducting wall The boundary layer of the surface of the heat dissipating convex portion makes the air flow easily away from the heat of the heat dissipating convex portion of the heat conducting wall, and the electronic component is maintained at a normal working temperature to prevent the electronic component from being damaged, thereby achieving the utility of greatly increasing the service life of the electronic component. purpose.

Conventional part:

10‧‧‧ radiator

11‧‧‧ Heat sink fins

12‧‧‧Wind

20‧‧‧Fan

Part of the invention:

30‧‧‧heating device

31‧‧‧ tube body

311‧‧‧ wind channel

3111‧‧‧ wearing parts

3112‧‧‧Expansion Department

312‧‧‧ wall

313‧‧‧Extension wall

314‧‧‧ Thermal Conductive Wall

3141‧‧‧Assembly Department

3142‧‧‧heating convex

32‧‧‧ deflector

321‧‧‧ rod body

322‧‧‧Spiral blades

33‧‧‧Air blower

331‧‧‧Connected pipe

40‧‧‧Light source module

41‧‧‧Substrate

42‧‧‧LED components

50‧‧‧heating device

51‧‧‧ tube body

511‧‧‧ wind channel

5111‧‧‧ wearing section

5112‧‧‧Expansion Department

512‧‧‧ wall

513‧‧‧Extended wall

514‧‧‧ Thermal conduction wall

5141‧‧‧Assembly Department

5142‧‧‧heating convex

52‧‧‧ deflector

521‧‧‧ rod body

522‧‧‧Spiral blades

53‧‧‧Air blower

531‧‧‧Connected pipe

60‧‧‧heating device

61‧‧‧ tube body

611‧‧‧ wind channel

6111‧‧‧ wearing parts

6112‧‧‧Expansion Department

612‧‧‧ wall

613‧‧‧Extended wall

614‧‧‧ Thermal Conductive Wall

6141‧‧‧Assembly Department

6142‧‧‧heating convex

62‧‧‧ deflector

621‧‧‧ rod body

622‧‧‧Spiral blades

63‧‧‧Air blower

631‧‧‧Connected pipe

70‧‧‧heating device

71‧‧‧ tube body

711‧‧‧ wind channel

7111‧‧‧ wearing section

7112‧‧‧Expansion Department

712‧‧‧ wall

713‧‧‧Extended wall

714‧‧‧ Thermal conduction wall

7141‧‧‧Assembly Department

7142‧‧‧heating convex

715‧‧‧Outer casing

716‧‧ ‧ partition

717‧‧‧ notch

72‧‧‧ deflector

721‧‧‧ rod body

722‧‧‧Spiral blades

73‧‧‧Air blower

731‧‧‧Connected pipe

Θ‧‧‧ angle

Figure 1: Schematic diagram of the operation of a conventional heat sink.

Fig. 2 is a schematic view showing the appearance of a first embodiment of the present invention.

Fig. 3 is a cross-sectional view (1) of the first embodiment of the present invention.

Figure 4 is a cross-sectional view (2) of the first embodiment of the present invention.

Fig. 5 is a schematic view showing the use of the first embodiment of the present invention applied to a lighting device.

Fig. 6 is a schematic view showing the action of heat dissipation in the first embodiment of the present invention (1).

Fig. 7 is a schematic view showing the action of heat dissipation in the first embodiment of the present invention (2).

Figure 8 is a schematic view showing the appearance of a second embodiment of the present invention.

Figure 9 is a cross-sectional view (1) of a second embodiment of the present invention.

Figure 10 is a cross-sectional view (2) of a second embodiment of the present invention.

Figure 11 is a schematic view showing the use of the second embodiment of the present invention applied to a lighting device.

Fig. 12 is a schematic view showing the action of heat dissipation in the second embodiment of the present invention (1).

Figure 13 is a schematic view showing the action of heat dissipation in the second embodiment of the present invention (2).

Figure 14 is a schematic view showing the appearance of a third embodiment of the present invention.

Figure 15 is a cross-sectional view (1) of a third embodiment of the present invention.

Figure 16 is a cross-sectional view (2) of a third embodiment of the present invention.

Figure 17 is an exploded perspective view showing a fourth embodiment of the present invention.

Figure 18 is a schematic view showing the combined appearance of a fourth embodiment of the present invention.

Figure 19 is a cross-sectional view (1) of a fourth embodiment of the present invention.

Figure 20 is a cross-sectional view (2) of a fourth embodiment of the present invention.

In order to make the present invention further understand the present invention, the preferred embodiment and the drawings are described in detail as follows: Please refer to Figures 2, 3 and 4 for the first implementation of the heat sink 30 of the present invention. For example, the pipe body 31 includes a pipe body 31, a flow guiding member 32 and a blower 33. The pipe body 31 is provided with a duct 311 having a wearing portion and at least one expanding portion, and is provided with at least one heat conducting wall; In this embodiment, the pipe body 31 is provided with a pipe wall 312 having a C-shaped cross section, and an extending wall 313 is respectively disposed at the two end edges of the front side of the pipe wall 312, and the pipe body 31 is disposed in the pipe body 31. The wall 312 is provided with a penetrating portion 3111. The two extending walls 313 are provided with an expanding portion 3112 communicating with the penetrating portion 3111, and the air channel is formed by the penetrating portion 3111 and the expanding portion 3112 of the tube body 31. 311; wherein the two extension walls 313 of the tubular body 31 are inclined outwardly, so that the two extension walls 313 have an angle θ between the angles θ of 60° to 90°; and the two extension walls 313 are connected There is a heat conducting wall 314. The outer side of the heat conducting wall 314 is provided with an assembly portion 3141 for connecting and mounting electronic components, and the inner side is provided with a convex portion 311. The heat radiating convex portion 3142 in the expanding portion 3112 is provided with a circular arc segment on the top edge and the two side edges of the heat radiating convex portion 3142, so that the heat radiating convex portion 3142 protrudes from the tubular body with a smooth curved surface. In the expansion portion 3112 of the air passage 311 of the 31, the flow guiding member 32 corresponding to the assembly portion 3141 corresponding to the heat conduction wall 314 is sleeved in the insertion portion 3111 of the tube body 31, and the flow guiding member 32 is provided with a The rod body 321 is provided with a spiral blade 322 on the annular surface of the rod body 321 . The outer edge of the spiral blade 322 can abut against the inner wall surface of the tube wall 312 of the tube body 31 and the heat dissipation of the heat conducting wall 314 . The top edge of the protrusion 3142 or the inner wall surface of the tube wall 312 of the tube body 31 and the top edge of the heat dissipation protrusion 3142 of the heat conduction wall 314 have a suitable gap; in this embodiment, the flow guiding member 32 The outer edge of the spiral blade 322 abuts against the inner wall surface of the pipe wall 312 of the pipe body 31 and the top edge of the heat dissipation convex portion 3142 of the heat conduction wall 314, and has a better flow guiding effect; and the wind of the pipe body 31 A ventilator 33, which may be a fan or a blower, is disposed in the air passage 311 of the pipe body 31 to generate a gas flow in the air passage 311 of the pipe body 31. In this embodiment, the air supply is provided. A communication pipe 331 is disposed in communication with the air passage 311 of the pipe body 31. The gas sent by the air blower 33 is input into the air passage 311 of the pipe body 31 through the communication pipe 331, and the pipe body is An air flow is generated in the air passage 311 of the air passage 31, and the airflow in the air passage 311 of the pipe body 31 is guided by the spiral blade 322 of the flow guiding member 32, so that the airflow flows through the air passage 311 in a spiral path. The portion 3111 and the expansion portion 3112.

Referring to FIG. 5, the first embodiment of the heat sink 30 of the present invention can be applied to electronic components of various devices to derive the heat generated by the electronic components and maintain the electronic components at a normal operating temperature for application. For example, the illuminating device is connected to the electronic component of the light source module 40, and the light source module 40 is provided with a plurality of LED elements 42. The substrate 41 is placed on the assembly portion 3141 of the heat conducting wall 314 of the tube body 31. The light source module 40 is electrically connected to the driving module and the power source. Performing voltage transformation, voltage regulation, and AC/DC conversion of the power to drive the LED elements 42 of the light source module 40 to emit light, and the power module is used for voltage transformation, voltage regulation, and AC and DC conversion. The design department is a technology that is well-known in the industry and is not the focus of the design of the present invention, and therefore will not be described.

Referring to FIGS. 6 and 7 , when the LED elements 42 driving the light source module 40 emit light, the heat generated by the LED elements 42 of the light source module 40 is transmitted to the tube body via the substrate 41 . The heat dissipating convex portion 3142 of the heat conducting wall 314 of the 31, and the air blower 33 is used to transport the gas in the air duct 311 of the tube body 31, so that an air flow is generated in the air duct 311 of the tube body 31, and the air guiding member is used. 32 spiral blade 322 The airflow in the air passage 311 of the pipe body 31 is guided to flow in a spiral path in the insertion portion 3111 and the expansion portion 3112 of the air passage 311, and the spiral airflow is used to circulate through the heat conduction. The heat dissipating convex portion 3142 of the wall 314 and the heat of the heat dissipating convex portion 3142 of the heat conducting wall 314 are removed, and the expanding portion 3112 of the air duct 311 enlarges the flow space of the air flow, and the heat dissipating wall 314 dissipates heat. The convex portion 3142 is further protruded into the expanding portion 3112 by a smooth curved surface, and the size of the space through which the airflow in the expanding portion 3112 flows can be changed. Therefore, when the airflow is dissipated along the heat conducting wall 314, When the convex portion 3142 flows through the expansion portion 3112, the flow velocity and pressure of the airflow continuously change, and the boundary layer on the surface of the heat dissipation convex portion 3142 of the heat conduction wall 314 can be broken, so that the airflow is easy to be used for the heat conduction wall 314. The heat of the heat dissipating protrusions 3142 is removed, and the LED elements 42 of the light source module 40 are maintained at a normal operating temperature to prevent the LED elements 42 of the light source module 40 from being damaged, thereby greatly improving the heat dissipation effect and improving the electronic components. Practical benefits of life.

Referring to Figures 8, 9, and 10, a second embodiment of the heat sink 50 of the present invention includes a tube body 51, a flow guiding member 52, and a blower 53. The tube body 51 is provided with a wearer. The air duct 511 of the at least one expansion portion is provided with at least one heat conducting wall; in the embodiment, the tube body 51 is provided with a tube wall 512 having a relatively C shape in a cross-sectional shape at a central position. An extending wall 513 is respectively disposed at an end edge of the front and rear sides of the second pipe wall 512, and a through portion 5111 is provided in the second pipe wall 512 of the pipe body 51. The front and rear sides of the pipe body 51 are provided. The second extension wall 513 is provided with an expansion portion 5112 communicating with the insertion portion 5111, and the air passage 511 is formed by the insertion portion 5111 and the second expansion portion 5112 of the tube body 51. The tube body 51 is formed. The two extension walls 513 of the front and rear sides are inclined outwardly, so that the two extension walls 513 have an included angle θ, the angle θ is 60°-90°; and the two extension walls of the front and rear sides of the tube body 51 513 are respectively connected with a heat conducting wall 514, and the outer side of the two heat conducting walls 514 are respectively provided with an assembling portion 5141 for connecting electronic components, and the inner side is respectively provided with a convex portion. The inside of the air duct 511 bis expansion portion 5112 The heat dissipating convex portion 5142 is respectively provided with a circular arc segment on the top edge and the two side edges of the two heat dissipating convex portions 5142, so that the two heat dissipating convex portions 5142 protrude from the wind of the tubular body 51 with a smooth curved surface. In the second expansion portion 5112 of the channel 511, a flow guiding member 52 corresponding to the assembly portion 5141 corresponding to the two heat conduction walls 514 is sleeved in the insertion portion 5111 of the tube body 51, and the flow guiding member 52 is provided with a rod. The body 521 is provided with a spiral blade 522 on the annular surface of the rod body 521. The outer edge of the spiral blade 522 can abut against the inner wall surface of the tube wall 512 of the tube body 51 and the two heat conducting walls 514. The top edge of the heat dissipating protrusion 5142 has a suitable gap with the inner wall surface of the tube wall 512 of the tube body 51 and the top edge of the heat dissipating protrusion 5142 of the two heat conducting walls 514; in the embodiment, the flow guiding member 52 The outer edge of the spiral blade 522 abuts against the inner wall surface of the second pipe wall 512 of the pipe body 51 and the top edge of the heat dissipation convex portion 5142 of the two heat conduction walls 514, and has a better flow guiding effect; The air duct 511 of the 51 is connected to the air blower 53 which can be a fan or a blower to transport the gas in the air duct 511 of the pipe body 51, so that the air duct 511 of the pipe body 51 is inside. In the present embodiment, the air blower 53 is in communication with the air duct 511 of the pipe body 51, and a communication pipe 531 is provided. The gas sent by the air blower 53 is input to the pipe body 51 via the communication pipe 531. In the air passage 511, an air flow is generated in the air passage 511 of the pipe body 51, and the air flow in the air passage 511 of the pipe body 51 is guided by the spiral blade 522 of the flow guiding member 52, so that the air flow is spiraled. The shape path flows through the insertion portion 5111 and the second expansion portion 5112 of the air passage 511.

Referring to FIGS. 11, 12, and 13 , when the second embodiment of the heat sink 50 of the present invention is applied to the lighting equipment, it is respectively connected to the assembly portion 5141 of the heat conducting wall 514 of the tube 51. An electronic component of the light source module 40 is disposed, and the substrate 41 of the two light source modules 40 are respectively adhered to the assembly portion 5141 of the heat conducting wall 514 of the tubular body 51; when the two light source modules are driven When the LED elements 42 of the 40 are illuminated by light, the heat generated by the LED elements 42 of the two light source modules 40 is respectively transmitted to the heat dissipating convex portions 5142 of the two heat conducting walls 514 of the tube body 51 via the substrate 41, and The air is supplied to the air duct 511 of the pipe body 51 by the air blower 53 to make the gas An air flow is generated in the air passage 511 of the pipe body 51, and the air flow in the air passage 511 of the pipe body 51 is guided by the spiral blade 522 of the flow guiding member 52, so that the air flow flows through the air passage 511 in a spiral path. The heat-dissipating convex portion 5142 passes through the heat-dissipating convex portion 5142 of the two heat-transfer walls 514, and the heat of the heat-dissipating convex portion 5142 of the two heat-conductive walls 514 is removed by the spiral portion. The expansion portion 5112 of the air duct 511 expands the flow space of the airflow, and the heat dissipation convex portion 5142 of the two heat conduction walls 514 protrudes into the expansion portion 5112 with a smooth curved surface. The size of the space in which the airflow in the two expansion portions 5112 flows changes. Therefore, when the airflow flows through the two expansion portions 5112 along the heat dissipation convex portion 5142 of the two heat conduction walls 514, the flow velocity and pressure of the airflow are continuously generated. The boundary layer of the surface of the heat dissipating convex portion 5142 of the two heat conducting walls 514 can be broken, so that the airflow can easily remove the heat of the heat dissipating convex portion 5142 of the two heat conducting walls 514, and the two light source modules 40 can be separated. LED element 42 is maintained at normal operating temperature, In order to prevent damage to the LED elements 42 of the two light source modules 40, the utility model can greatly improve the heat dissipation effect and improve the service life of the electronic components.

Referring to Figures 14, 15, and 16, a third embodiment of the heat sink 60 of the present invention includes a tube body 61, a flow guiding member 62, and a blower 63. The tube body 61 is provided with a wearer. And at least one air duct 611 of the expansion portion, and at least one heat conducting wall; in the embodiment, the tube body 61 is disposed at a central position, and the plurality of two opposite sides are arranged and the cross-sectional shape is substantially C-shaped. The tube wall 612 is provided with an extending wall 613 at each end edge of each of the tube walls 612, and a through portion 6111 is provided in each of the tube walls 612 of the tube body 61. The tube body 61 is front and rear, An expansion portion 6112 communicating with the insertion portion 6111 is disposed between the left and right extension walls 613, and the air passage 611 is formed by the insertion portion 6111 and the expansion portion 6112 of the tubular body 61. The two extension walls 613 of the front, the rear, the left and the right side of the tubular body 61 are inclined outwardly, so that the two extension walls 613 have an angle θ between 60° and 90°, and before the tube body 61, A heat conducting wall 614 is connected between the two extension walls 613 of the rear, left and right sides, and the outer side of each of the heat conducting walls 614 An assembly portion 6141 for connecting and mounting electronic components is disposed, and a heat dissipation convex portion 6142 protruding from each of the expansion portions 6112 of the air passage 611 is disposed on the inner side, and is disposed at a top edge of each of the heat dissipation convex portions 6142 and The two side edges are respectively provided with arc segments, so that the heat dissipating convex portions 6142 protrude into the respective expansion portions 6112 of the air duct 611 of the tube body 61 with a smooth curved surface; A flow guiding member 62 fixed to the assembling portion 6141 corresponding to each of the heat conducting walls 614 is disposed in the portion 6111. The guiding member 62 is provided with a rod body 621, and a spiral blade is disposed on the annular surface of the rod body 621. 622, the outer edge of the spiral blade 622 can abut against the inner wall surface of each tube wall 612 of the tube body 61 and the top edge of the heat dissipation convex portion 6142 of the heat conduction wall 614, or the wall of the tube body 61 The inner wall surface of the 612 and the top edge of the heat dissipating convex portion 6142 of the heat conducting wall 614 have a suitable gap. In this embodiment, the outer edge of the spiral blade 622 of the flow guiding member 62 abuts against each tube of the tube body 61. The inner wall surface of the wall 612 and the top edge of the heat dissipating convex portion 6142 of the heat conducting wall 614 have a better flow guiding effect; and the air duct 611 of the tube body 61 is connected A blower 63, which may be a fan or a blower, is provided to convey a gas in the air duct 611 of the pipe body 61 to generate an air flow in the air duct 611 of the pipe body 61. In the embodiment, the air blower 63 is provided. A communication pipe 631 is disposed between the air passages 611 of the pipe body 61, and the gas sent from the air blower 63 is input into the air passage 611 of the pipe body 61 via the communication pipe 631, so that the wind of the pipe body 61 is made. An airflow is generated in the channel 611, and the airflow in the air channel 611 of the pipe body 61 is guided by the spiral blade 622 of the flow guiding member 62, so that the airflow flows through the insertion portion 6111 of the air channel 611 in a spiral path. In the expansion portion 6112; when the heat generated by the electronic component is transmitted to the heat dissipation convex portion 6142 of the heat conduction wall 614 of the pipe body 61, the air blower 63 is disposed in the air passage 611 of the pipe body 61. The gas is transported to generate an air flow in the air duct 611 of the tubular body 61, and the airflow in the air duct 611 of the tubular body 61 is guided by the spiral blade 622 of the flow guiding member 62, so that the airflow flows through the spiral path. The air passage 611 is disposed in the insertion portion 6111 and the expansion portion 6112, and the spiral airflow flows through the heat conduction wall 614. Thermal crown portion 6142, and the heat conduction wall 614 of the heat dissipation protrusions The heat transfer of the air duct 611 expands the flow space of the air flow, and the heat radiating convex portion 6142 of the heat conductive wall 614 protrudes into the expansion portion 6112 with a smooth curved surface. The size of the space through which the airflow in the expansion portion 6112 flows can be changed. Therefore, when the airflow flows through the expansion portion 6112 along the heat dissipation convex portion 6142 of the heat conduction wall 614, the flow velocity and pressure of the airflow are continuously A change is made to break the boundary layer of the surface of the heat dissipating protrusion 6142 of the heat conducting wall 614, so that the air flow is easy to carry away the heat of the heat dissipating protrusion 6142 of the heat conducting wall 614, and the electronic component is maintained at a normal operating temperature. In order to prevent damage to electronic components, the utility model can greatly improve the heat dissipation effect and improve the service life of electronic components.

Referring to Figures 17, 18, 19, and 20, a fourth embodiment of the heat sink 70 of the present invention includes a tube body 71, a flow guiding member 72, and a blower 73. The tube body 71 is provided therein. The air duct 711 having the insertion portion and the at least one expansion portion is provided with at least one heat conducting wall; in the embodiment, the tube body 71 is provided with a tube wall 712 having a C shape in cross section, and The two ends of the front side of the pipe wall 712 are respectively provided with an extending wall 713, and the pipe wall 712 of the pipe body 71 is provided with a through portion 7111, and the two extending walls 713 are provided with the through portion 7111. The air duct 711 is formed by the insertion portion 7112 and the expansion portion 7112 of the tube body 71. The two extension walls 713 of the tube body 71 are inclined outwardly, so that the two extension walls 713 are interposed. Having an angle θ, the angle θ is 60° to 90°; and an outer sleeve of the tube wall 712 and the second extension wall 713 is sleeved and has a heat-conducting wall 714 outside the sleeve 715, and the second The extending wall 713 abuts against the two sides of the heat conducting wall 714. The outer side of the heat conducting wall 714 is provided with an assembling portion 7141 for connecting and mounting electronic components, and the inner side is provided with a convex portion. a heat dissipating convex portion 7142 extending in the expanding portion 7112 of the air passage 711, and a circular arc segment is respectively disposed on the top edge and the two side edges of the heat dissipating convex portion 7142, so that the heat dissipating convex portion 7142 is smoothly curved. The surface protrudes from the expansion portion 7112 of the air passage 711 of the tubular body 71. The flow guiding member 7 of the assembly portion 7141 corresponding to the heat conductive action wall 714 is sleeved in the insertion portion 7111 of the tubular body 71. The guide member 72 is provided with a rod body 721, and a spiral blade 722 is disposed on the annular surface of the rod body 721. The outer edge of the spiral vane 722 can abut against the tube wall 712 of the tube body 71. The inner wall surface and the top edge of the heat dissipating convex portion 7142 of the heat conducting wall 714 or the inner wall surface of the tube wall 712 of the tube body 71 and the top edge of the heat dissipating convex portion 7142 of the heat conducting wall 714 have appropriate gaps; For example, the outer edge of the spiral blade 722 of the flow guiding member 72 abuts against the inner wall surface of the tube wall 712 of the tube body 71 and the top edge of the heat dissipating convex portion 7142 of the heat conducting wall 714, and has a better flow guiding effect. In addition, a fan 73, which may be a fan or a blower, is connected to the air duct 711 of the pipe body 71 to supply gas in the air channel 711 of the pipe body 71 to generate airflow in the air duct 711 of the pipe body 71. In the present embodiment, the air blower 73 is in communication with the air duct 711 of the pipe body 71, and a communication pipe 731 is provided. The gas sent by the air blower 73 is input into the wind of the pipe body 71 via the communication pipe 731. In the channel 711, an air flow is generated in the air duct 711 of the tube body 71, and the air channel 711 of the tube body 71 is guided by the spiral blade 722 of the flow guiding member 72. The airflow is caused to flow in a spiral path through the insertion portion 7111 and the expansion portion 7112 of the air passage 711. A partition 716 is disposed in the outer sleeve 715, and a pair of the partition 716 is disposed on the outer sleeve 715. The groove 717 of the air passage 711 of the body 71 should be piped, and the gas supplied from the blower 73 is concentratedly flowed into the air passage 711 of the pipe body 71; thereby, heat generated by the electronic component is transmitted to the pipe body. When the heat dissipating convex portion 7142 of the heat conducting wall 714 is 71, the air is supplied to the air duct 711 of the pipe body 71 by the air blower 73, so that an air flow is generated in the air duct 711 of the pipe body 71, and the air flow is induced. The spiral blade 722 of the member 72 guides the airflow in the air passage 711 of the pipe body 71, and the airflow flows through the through-hole portion 7111 and the expansion portion 7112 of the air passage 711 in a spiral path, and the spiral shape is utilized. The airflow passes through the heat dissipation convex portion 7142 of the heat conduction wall 714, and the heat of the heat dissipation convex portion 7142 of the heat conduction wall 714 is carried away, and the expansion portion 7112 of the air passage 711 expands the circulation space of the airflow, and the airflow The heat dissipation convex portion 7142 of the heat conductive action wall 714 is further protruded from the expansion by a smooth curved surface. The 7112, the airflow within the expansion portion 7112 Circulation The size of the space changes. Therefore, when the airflow flows through the expansion portion 7112 along the heat dissipation convex portion 7142 of the heat conduction wall 714, the flow velocity and pressure of the airflow are continuously changed, and the heat conduction wall 714 can be destroyed. The boundary layer on the surface of the heat dissipating protrusion 7142 makes it easy for the airflow to carry away the heat of the heat dissipating convex portion 7142 of the heat conducting wall 714, and the electronic component is maintained at a normal working temperature to prevent the electronic component from being damaged, thereby greatly improving the heat dissipating effect. And improve the practical benefits of the life of electronic components.

Accordingly, the present invention is a practical and progressive design, but it has not been disclosed that the same products and publications are disclosed, thereby permitting the invention patent application requirements, and applying in accordance with the law.

30‧‧‧heating device

31‧‧‧ tube body

311‧‧‧ wind channel

3111‧‧‧ wearing parts

3112‧‧‧Expansion Department

312‧‧‧ wall

313‧‧‧Extension wall

314‧‧‧ Thermal Conductive Wall

3141‧‧‧Assembly Department

3142‧‧‧heating convex

32‧‧‧ deflector

321‧‧‧ rod body

322‧‧‧Spiral blades

33‧‧‧Air blower

331‧‧‧Connected pipe

Claims (10)

The heat dissipating device comprises: a pipe body: the inner side of the pipe body is provided with an air passage having a piercing portion and at least one expansion portion, and the pipe body is provided with at least one heat conducting wall, the heat conducting wall The outer side is provided with an assembly portion, and the inner side is provided with a heat dissipating convex portion protruding from the expansion portion of the air duct; the air blower is a duct that communicates with the duct body to generate an air flow in the air duct of the duct body; The flow guiding member is sleeved in the insertion portion of the air passage of the pipe body, and is provided with a spiral blade to guide the air flow in the air passage, so that the air flow flows in the air passage in a spiral path. . The heat dissipating device according to claim 1, wherein the pipe system is provided with a C-shaped pipe wall having a cross-sectional shape, and an extending wall is respectively disposed at the two end edges of the front side of the pipe wall. The insertion portion is disposed in the wall of the body, and the expansion portion communicating with the insertion portion is disposed between the two extension walls, and the air passage is formed by the insertion portion and the expansion portion of the tubular body. The heat dissipating device according to claim 2, wherein the extending wall of the tube body is inclined outwardly, so that the two extending walls have an angle between 60° and 90°. The heat dissipating device according to claim 2, wherein the outer edge of the spiral blade of the flow guiding member abuts against the inner wall surface of the pipe body and the top edge of the heat dissipating convex portion of the heat conducting wall. The heat dissipating device according to the first aspect of the invention, wherein the heat dissipating convex portion of the heat conducting wall of the tube body is respectively provided with a circular arc segment on the top edge and the two side edges, so that the heat dissipating convex portion is smooth The curved surface protrudes into the expanded portion of the duct of the tubular body. The heat dissipating device according to claim 1, wherein the pipe system is provided with two oppositely-shaped C-shaped pipe walls at a central position, and the end edges of the front and rear sides of the two pipe walls are divided. An extension wall is disposed, and a through portion is disposed in the second tube wall of the tube body, and an extension portion communicating with the insertion portion is respectively disposed between the two extension walls of the front and rear sides of the tube body, and The passage portion and the second expansion portion of the tubular body form the air passage. The heat dissipating device according to claim 1, wherein the tube system is provided with a plurality of tube walls which are opposite in shape and have a C-shaped cross section at a central position, and at each end of each of the tube walls The edge is respectively provided with an extending wall, and a through portion is disposed in each of the tube walls of the tube body, and the extending portion communicating with the through portion is respectively disposed between the two extending walls of the front, rear, left and right sides of the tube body And forming the air passage by the wearing portion of the tubular body and each of the expanding portions. The heat dissipating device according to claim 1, wherein the pipe system is provided with a C-shaped pipe wall having a cross-sectional shape, and an extending wall is respectively disposed at the two end edges of the front side of the pipe wall. a penetrating portion is disposed in the wall of the body, and the extending portion is communicated with the penetrating portion, and the air channel is formed by the penetrating portion and the expanding portion of the tube body, and The outer wall of the pipe wall and the two extending walls is sleeved with a rectangular outer shape and has a heat conducting wall, and the two extending walls abut against the two sides of the heat conducting wall. The heat dissipating device of claim 8, wherein a pipe is disposed in the casing outside the pipe body, and a notch corresponding to the shape of the air duct of the pipe body is opened on the partition plate, so that The air blower delivers the gas in a concentrated manner into the air duct of the pipe body. The heat dissipating device according to claim 1, wherein the air supply device is connected to the air duct of the pipe body to be provided with a communication pipe.