Heat dissipation device

Abstract

The heat dissipation device comprises a heat dissipation assembly and a fan, the fan comprises a motor and fan blades, the motor is provided with a motor body and a rotating shaft, the motor body is installed at the bottom of the heat dissipation assembly, and the rotating shaft is rotatably installed on the side, away from the heat dissipation assembly, of the motor body and extends downwards. The fan blades are installed on the rotating shaft and located below the motor body, the motor body is used for driving the rotating shaft to rotate and driving the fan blades to rotate so as to supply air upwards, and therefore a gap between the rotating shaft and a shell of the motor body is located on the lower surface of the motor body, and the motor body can block external liquid dripping from top to bottom; therefore, external liquid can be prevented from flowing into the motor main body. In addition, when the fan runs, cold air sequentially flows through the motor body and the heat dissipation assembly from bottom to top, heat dissipated by the heat dissipation assembly can be brought out from bottom to top, the motor body can be cooled, and the service life of the motor can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation technical field, especially a heat dissipation device. BACKGROUND

[0002] In the related art, the heat dissipation device for heat dissipation of the transformer of nuclear power plant generally comprises a heat dissipation assembly and a fan, wherein the fan generally adopts a vertical installation structure, that is, the fan is installed at the bottom of the heat dissipation assembly, the fan comprises a motor and a fan blade, the rotating shaft of the motor is arranged upward, and the fan blade is installed on the rotating shaft of the motor. When the structure is running, the cold air can be blown from the bottom of the heat dissipation assembly to the top of the heat dissipation assembly, and the heat emitted by the heat dissipation assembly is carried out from bottom to top, so that the heat dissipation efficiency is high.

[0003] In the heat dissipation device, the motor generally comprises a motor body and a rotating shaft, the rotating shaft is rotatably installed on the motor body, and in order that the rotating shaft can rotate normally, a gap is generally left between the rotating shaft and the shell of the motor body, so that friction and collision between the rotating shaft and the shell of the motor body during rotation of the rotating shaft is prevented. However, since the rotating shaft is arranged upward, in a long-time running process, rainwater may flow downward along the rotating shaft and flow into the motor from the gap between the rotating shaft and the body, which affects the normal use of the motor, and further causes abnormal sound of the fan during operation, and even burns the motor in a serious case, which affects the normal operation of the fan, and further causes the heat dissipation device to be unable to normally dissipate heat. In addition, in the heat dissipation device, the motor works in a high-temperature environment for a long time, which also causes the motor to be damaged and has a short service life. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a heat dissipation device, which can prevent external liquid from flowing into the motor along the rotating shaft in the axial direction, and is beneficial to prolonging the service life of the motor.

[0005] According to the heat dissipation device, the motor comprises a motor body and a rotating shaft, the motor body is installed at the bottom of the heat dissipation assembly, the rotating shaft is rotatably installed on the side of the motor body away from the heat dissipation assembly and extends downward to form, the fan blade is installed on the rotating shaft and located below the motor body, and the motor body is used for driving the rotating shaft to rotate, so that the fan blade is driven to rotate to blow air upward.

[0006] According to the heat dissipation device, at least the following beneficial effects are achieved:

[0007] The heat dissipation device is characterized in that the motor body is installed at the bottom of the heat dissipation assembly, the rotating shaft is rotatably installed at the side of the motor body away from the heat dissipation assembly and extends downward, the gap between the rotating shaft and the shell of the motor body is located at the lower surface of the motor body, the motor body can block the external liquid dropping from top to bottom, the external liquid cannot flow back into the interior of the motor body along the rotating shaft under the action of gravity, the external liquid cannot flow along the rotating shaft and flow into the interior of the motor body through the gap between the rotating shaft and the shell of the motor body, the damage of the motor caused by the external liquid is prevented, and the service life of the motor is prolonged.

[0008] According to some embodiments of the present application, the fan further comprises a wind tube, the wind tube is installed at the bottom of the heat dissipation assembly, the motor body is installed in the wind tube, and the motor body, the rotating shaft and the fan blade are all arranged in the wind tube.

[0009] According to some embodiments of the present application, the upper end of the wind tube is provided with an air outlet, and the lower end or the peripheral wall of the wind tube is provided with an air inlet; the air inlet and the air outlet are in communication with each other.

[0010] According to some embodiments of the present application, the fan blade comprises a rotating part connected with the rotating shaft, and at least two blades, the side wall of the rotating part is provided with an installation slot corresponding to the blade and used for installing the blade, all the installation slots are uniformly and spacedly arranged along the circumference of the rotating part, and the installation slots are arranged upwardly inclined in the counterclockwise direction or the clockwise direction.

[0011] According to some embodiments of the present application, the inclination angle between the installation slot and the horizontal plane is 20-50°.

[0012] According to some embodiments of the present application, the heat dissipation assembly comprises a plurality of heat dissipation fins arranged horizontally and spacedly, each adjacent two heat dissipation fins have a heat dissipation channel, and the lower end of the heat dissipation channel has a cold air inlet.

[0013] According to some embodiments of the present application, the heat dissipation device further comprises a support structure installed at the bottom of the heat dissipation assembly, the wind tube is installed at the side of the support structure away from the heat dissipation assembly; the heat dissipation assembly comprises a plurality of heat dissipation fins arranged horizontally and spacedly, and all the heat dissipation fins are connected or abutted to the support structure.

[0014] According to some embodiments of the present application, the heat dissipation fins are internally provided with heat dissipation cavities, the bottom of the heat dissipation fins is provided with a communication hole in communication with the heat dissipation cavities, the support structure comprises at least one manifold pipe, and the air duct is mounted on the outer wall of the at least one manifold pipe.

[0015] According to some embodiments of the present application, the side wall of the heat dissipation cavity is provided with at least one recess or protrusion.

[0016] According to some embodiments of the present application, the number of the heat dissipation assemblies is at least one, and at least one fan is correspondingly arranged below each heat dissipation assembly.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become obvious from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings and embodiments, in which:

[0019] Figure 1 Fig. 1 is a schematic view of a heat dissipation device according to an embodiment of the present application;

[0020] Figure 2 Fig. 2 is another schematic view of the heat dissipation device according to the embodiment of the present application;

[0021] Figure 3 Fig. 3 is a sectional schematic view of the heat dissipation device according to the embodiment of the present application;

[0022] Figure 4 Fig. 4 is a schematic view of a fan according to an embodiment of the present application;

[0023] Figure 5 Fig. 5 is another schematic view of the fan according to the embodiment of the present application;

[0024] Figure 6 Fig. 6 is a sectional schematic view of the fan according to the embodiment of the present application;

[0025] Figure 7 Fig. 7 is a schematic view of a fan blade according to an embodiment of the present application.

[0026] Reference signs:

[0027] Heat dissipation assembly 100, heat dissipation fin 110;

[0028] Fan 200, motor 210, motor body 211, rotating shaft 212, fan blade 220, rotating part 221, blade 222, air duct 230, air outlet 231, air inlet 232, upper protective net 233, lower protective net 234, mounting bracket 240, connecting rod 241, mounting rod 242;

[0029] Converging pipe 300. DETAILED DESCRIPTION

[0030] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Referring to Figures 1 to 6The utility model discloses an embodiment proposes a heat dissipation device, the heat dissipation device includes heat dissipation subassembly 100 and fan 200, fan 200 includes motor 210 and fan blade 220, motor 210 has motor main body 211 and pivot 212, motor main body 211 is installed at the bottom of heat dissipation subassembly 100, and pivot 212 is rotatably installed at the one side of motor main body 211 and forms downward extension away from heat dissipation subassembly 100, and fan blade 220 is installed at pivot 212 and is located below motor main body 211, and motor main body 211 is used to drive pivot 212 rotation, and drives fan blade 220 rotation to send air upward.

[0036] By adopting the heat dissipation device of the utility model embodiment, the motor main body 211 is installed at the bottom of the heat dissipation subassembly 100, and the pivot 212 of the motor 210 is rotatably installed at the one side of the motor main body 211 away from the heat dissipation subassembly 100 and forms downward extension, so that the gap between the pivot 212 and the shell of the motor main body 211 is located at the lower side of the motor main body 211, thereby the motor main body 211 can block the external liquid dropping from top to bottom, and even if the external liquid flows to the lower surface of the shell of the motor main body 211 or the pivot 212, the external liquid cannot flow back into the interior of the motor main body 211 along the pivot 212 under the action of gravity, so that the external liquid flowing along the pivot 212 and flowing into the interior of the motor main body 211 through the gap between the pivot 212 and the shell of the motor main body 211 can be prevented, and the service life of the motor 210 can be prolonged. In addition, since the fan blade 220 is installed at the pivot 212 and located below the motor main body 211, when the fan 200 operates, the motor 210 drives the fan blade 220 to rotate to send air upward by driving the pivot 212 to rotate, and in the process, the cold air flows through the motor main body 211 and the heat dissipation subassembly 100 from bottom to top in turn, so that not only the heat dissipated by the heat dissipation subassembly 100 can be taken out from bottom to top, but also the motor main body 211 can be cooled, the damage of the high-temperature environment to the motor 210 is relieved, and the service life of the motor 210 can be further prolonged.

[0037] Referring to Figures 1 to 6 In some embodiments, the fan 200 further includes a wind pipe 230, the wind pipe 230 is installed at the bottom of the heat dissipation subassembly 100, the motor main body 211 is installed at the wind pipe 230, and the motor main body 211, the pivot 212 and the fan blade 220 are all arranged in the wind pipe 230.

[0038] In the above structure, by arranging the air duct 230, the motor body 211, the rotating shaft 212 and the fan blade 220 are all arranged in the air duct 230, so that the motor body 211, the rotating shaft 212 and the fan blade 220 can be isolated and protected, the influence of the external environment on the operation of the motor body 211, the rotating shaft 212 and the fan blade 220 is reduced, and the risk of damage to the motor body 211, the rotating shaft 212 and the fan blade 220 by the external environment is also reduced.

[0039] With reference to Figures 1 to 6 In some embodiments, the upper end of the air duct 230 is provided with an air outlet 231, and the lower end of the air duct 230 is provided with an air inlet 232, and the air inlet 232 and the air outlet 231 are in communication with each other.

[0040] By arranging the air outlet 231 at the upper end of the air duct 230 and the air inlet 232 at the lower end of the air duct 230, the cold air can be directed to flow upward from the air inlet 232 to the air outlet 231 and then upward from the air outlet 231, that is, the cold air can be guided to flow from bottom to top and then blow to the motor body 211 and the heat dissipation assembly 100 in sequence, so that the heat generated by the motor body 211 and the heat dissipation assembly 100 can be taken away, which not only facilitates heat dissipation of the heat dissipation assembly 100, but also facilitates cooling of the motor body 211, alleviates the damage of the high temperature environment to the motor 210, and further prolongs the service life of the motor 210.

[0041] It can be understood that in addition to arranging the air inlet 232 at the lower end of the air duct 230, in some embodiments, the air inlet 232 can also be arranged on the peripheral wall of the air duct 230 and in communication with the air outlet 231. Specifically, the air inlet 232 is located below the fan blade 220, so that when the motor 210 drives the fan blade 220 to rotate, the cold air can be brought to flow into the air duct 230 from the air inlet 232 and then upward to the air outlet 231 and then upward from the air outlet 231, that is, the structure can also guide the cold air to flow from bottom to top and then blow to the motor body 211 and the heat dissipation assembly 100 in sequence, so that the heat generated by the motor body 211 and the heat dissipation assembly 100 can be taken away. It should be noted that the peripheral wall of the air duct 230 specifically refers to the annular side wall arranged around the outer periphery of the fan blade 220. The specific position of the air inlet 232 on the peripheral wall is not limited in the utility model, as long as the air inlet 232 is arranged on the peripheral wall and below the fan blade 220.

[0042] With reference to Figures 1 to 6In some embodiments, the air duct 230 comprises a mounting bracket 240 mounted on the bottom of the heat dissipation assembly 100, and an air duct body connected with the mounting bracket 240 and in a cylindrical shape, the motor body 211 is mounted on the mounting bracket 240, and the motor body 211, the rotating shaft 212 and the fan blade 220 are all arranged inside the air duct body.

[0043] In the above structure, the mounting bracket 240 is arranged to facilitate the fixed installation of the motor body 211, so that the installation of the motor body 211 is more stable. By arranging the motor body 211, the rotating shaft 212 and the fan blade 220 inside the air duct body, the motor body 211, the rotating shaft 212 and the fan blade 220 can be protected, and the risk of damage caused by the external environment to the motor body 211, the rotating shaft 212 and the fan blade 220 can be reduced. In addition, when the motor 210 drives the fan blade 220 to rotate by driving the rotating shaft 212 to rotate, the air duct body can guide the cold air to flow upwards from the air inlet 232 to the motor body 211, thereby the heat emitted by the motor body 211 can be taken away, and the motor body 211 can be cooled. After the cold air flows through the motor body 211, it is discharged upwards from the air outlet 231 and blown to the heat dissipation assembly 100, thereby the heat emitted by the heat dissipation assembly 100 can be taken away.

[0044] It can be understood that, in addition to being arranged inside the air duct body, the motor body 211 can also be arranged outside the air duct body in some embodiments, which is not limited in the present application. When the motor body 211 is arranged outside the air duct body, the air duct body can guide the cold air to flow upwards from the air inlet 232 to the air outlet 231, and then blow to the motor body 211 and the heat dissipation assembly 100 in sequence, thereby the heat emitted by the motor body 211 and the heat dissipation assembly 100 can be taken away.

[0045] Referring to Figure 5In some embodiments, the air duct 230 comprises a mounting bracket 240 mounted on the bottom of the heat dissipation assembly 100, i.e. comprising two connecting rods 241 and two mounting rods 242, the two connecting rods 241 are arranged in parallel and are respectively arranged on the opposite sides of the motor body 211, and the two ends of the connecting rod 241 are connected to the inner wall of the air duct body, the two mounting rods 242 are also respectively arranged on the opposite sides of the motor body 211 and are connected one by one with the two connecting rods 241, the mounting rod 242 is connected with the corresponding connecting rod 241 to form a "cross" shape, wherein one end of the mounting rod 242 is connected to the inner wall of the air duct body, and the other end extends towards the motor body 211 and is connected with the motor body 211, i.e. the motor body 211 is mounted on the two mounting rods 242, the whole mounting bracket 240 is simple in structure and stable in connection, which is conducive to firmly mounting the motor body 211 inside the air duct body, and the mounting bracket 240 is connected by a plurality of rod members, which can reduce the obstruction of the mounting bracket 240 to the cold air flow, and is conducive to ensuring the flow efficiency of the cold air, thereby ensuring the heat dissipation efficiency of the heat dissipation device.

[0046] It can be understood that the mounting bracket 240 can adopt other mounting structures in addition to the above structure, for example, the mounting bracket 240 can also adopt only two connecting rods 241, and the two connecting rods 241 are arranged in parallel on the opposite sides of the motor body 211, and the motor body 211 is directly mounted on the two connecting rods 241. The specific structure of the mounting bracket 240 is not limited in the present application.

[0047] Referring to Figures 4 to 6 In some embodiments, the air duct 230 is provided with a lower protective net 234 at the air inlet 232, and an upper protective net 233 at the air outlet 231, which can further protect the fan blades 220 and the motor body 211 inside the air duct 230, and reduce the influence of the external environment on the fan blades 220 and the motor body 211 inside the air duct 230. The upper protective net 233 and the lower protective net 234 can also play a dustproof role, reducing the cleaning difficulty of the motor body 211 and the fan blades 220.

[0048] Referring to Figures 5 to 7 In some embodiments, the fan blade 220 comprises a rotating part 221 connected with the rotating shaft 212, and five blades 222, the side wall of the rotating part 221 is provided with a mounting groove corresponding to the blade 222 and used for mounting the blade 222, all the mounting grooves are uniformly and spacedly arranged along the circumference of the rotating part 221, and the mounting grooves are arranged upwardly inclined in the counterclockwise direction or the clockwise direction.

[0049] In the above structure, the rotating shaft 212 is connected to the rotating part 221, and the blade 222 is installed in the corresponding installation slot, so that the motor 210 can drive the rotating shaft 212 to rotate, drive the rotating part 221 to rotate, and drive each blade 222 to rotate, thereby realizing the air outlet of the fan 200. By arranging the installation slot to be inclined upward in the counterclockwise direction or the clockwise direction, the blade 222 can be arranged to be inclined upward in the counterclockwise direction or the clockwise direction when installed in the installation slot, thereby facilitating improvement of the air outlet efficiency of the fan 200, and further facilitating improvement of the heat dissipation efficiency of the heat dissipation device.

[0050] It can be understood that the number of the above-mentioned blades 220 is five, which is only an example of Figures 5 to 7 the number of the blades 220 can be two, three, four, six or more, and the present application does not make specific limitation, as long as the number of the blades 222 is at least two.

[0051] In some embodiments, the inclination angle between the installation slot and the horizontal plane is 20° to 50°.

[0052] By adopting the above structure, the inclination angle between the installation slot and the horizontal plane is set to 20° to 50°, that is, the twist inclination of the blade 220 is 20° to 50°, and the air outlet efficiency of the fan 200 is better in this angle range. If the inclination angle between the installation slot and the horizontal plane is too small, the air outlet amount of the fan 200 per unit time will be reduced, and the air outlet efficiency will be reduced, and if the inclination angle between the installation slot and the horizontal plane is too large, the operating noise of the fan 200 will be increased.

[0053] It can be understood that the inclination angle between the installation slot and the horizontal plane is 20° to 50°, and the inclination angle between the installation slot and the horizontal plane can be 20°, 30°, 40°, 50°, etc., and the present application does not make specific limitation.

[0054] Referring to Figures 1 to 3 In some embodiments, the heat dissipation assembly 100 includes a plurality of horizontally spaced heat dissipation fins 110, and each adjacent two heat dissipation fins 110 has a heat dissipation channel (not labeled in the figure), and the lower end of the heat dissipation channel has a cold air inlet (not labeled in the figure).

[0055] In the above structure, by dividing the heat dissipation assembly 100 into multiple heat dissipation fins 110 and arranging heat dissipation channels between the adjacent two heat dissipation fins 110, when the fan 200 is running, the motor 210 drives the fan blade 220 to rotate and send air upward. In this process, the cold air flows from bottom to top through the motor body 211 and then flows into the heat dissipation channels from the cold air inlet, thereby taking out the heat emitted by the heat dissipation fins 110 to cool the heat dissipation fins 110. The arrangement of the heat dissipation channels can increase the contact area between the cold air and the heat dissipation fins 110 and improve the heat dissipation efficiency of the heat dissipation device.

[0056] With reference to Figures 1 to 3 In some embodiments, the heat dissipation device further comprises a support structure installed at the bottom of the heat dissipation assembly 100, and the air duct 230 is installed on the side of the support structure away from the heat dissipation assembly 100. The heat dissipation assembly 100 comprises multiple horizontally spaced heat dissipation fins 110, and all the heat dissipation fins 110 are connected or abutted to the support structure.

[0057] By adopting the above structure, the air duct 230 is installed on the support structure, and all the heat dissipation fins are connected or abutted to the support structure, thereby facilitating the fixed installation of the heat dissipation device and the fan 200, and making the structure of the heat dissipation device more compact and stable.

[0058] With reference to Figures 1 to 3 In some embodiments, the heat dissipation fin 110 is internally provided with a heat dissipation cavity (not shown in the figure), the bottom of the heat dissipation fin 110 is provided with a communication hole (not shown in the figure) communicating with the heat dissipation cavity, the support structure comprises at least one manifold pipe 300, and the air duct 230 is installed on the outer wall of the at least one manifold pipe 300; the side wall of the manifold pipe 300 is provided with a plug-in hole corresponding to at least one heat dissipation fin 110, the lower end of the heat dissipation fin 110 is plugged into the plug-in hole and makes the communication hole communicate with the manifold pipe 300, and the heat dissipation fin 110 is welded to the inner wall of the plug-in hole.

[0059] In the above structure, the inner part of the heat dissipation fin 110 is provided with a heat dissipation cavity, which can pass high-temperature fluid, such as high-temperature oil of a transformer. The heat of the high-temperature fluid can be conducted to the heat dissipation fin 110, and then taken out by the cold air flowing through the heat dissipation channel, so as to cool the heat dissipation fin 110, and then cool the high-temperature fluid in the heat dissipation cavity. The cooled high-temperature fluid can flow into the collecting pipe 300 through the communication hole at the bottom of the heat dissipation fin 110, and then flow along the collecting pipe 300 and be output. By using the collecting pipe 300 as a supporting structure, the heat dissipation fin 110 and the fan 200 can be conveniently installed and fixed, and the high-temperature fluid in the heat dissipation cavity can be conveniently collected, which is a two-in-one design, and the structure of the heat dissipation device is simpler. In addition, by inserting the heat dissipation fin 110 into the insertion hole of the collecting pipe 300 and welding the heat dissipation fin 110 to the inner wall of the insertion hole, the heat dissipation fin 110 can be conveniently fixed and installed, and the sealing of the heat dissipation cavity can be ensured, so that the high-temperature fluid in the heat dissipation cavity does not leak out from the gap between the heat dissipation fin 110 and the inner wall of the insertion hole.

[0060] With reference to Figures 1 to 3 In some embodiments, the air duct 230 is installed on two collecting pipes 300, so that the fan 200 is installed more balanced and stable. Of course, in addition, the air duct 230 can be installed on one collecting pipe 300, or the air duct 230 can be installed on three, four or more collecting pipes 300 at the same time, which is not limited in the utility model.

[0061] It can be understood that the air duct 230 is installed on the outer wall of the collecting pipe 300. Specifically, the air duct 230 can be fixed and installed on the outer wall of the collecting pipe 300 by screws, bolts and other fasteners, or the air duct 230 can be installed on the outer wall of the collecting pipe 300 by buckling, hooking and other clamping structures, which is not limited in the utility model.

[0062] With reference to Figures 1 to 3 In some embodiments, each group of heat dissipation assemblies 100 is provided with three collecting pipes 300, and each collecting pipe 300 is connected to all the heat dissipation fins 110 in the corresponding heat dissipation assembly 100, so that the installation stability of the heat dissipation fin 110 can be improved, and the high-temperature fluid in each heat dissipation fin 110 can be conveniently collected.

[0063] With reference to Figures 1 to 3 In some embodiments, the side wall of the heat dissipation cavity is provided with at least one recess.

[0064] In the above structure, the recess is beneficial to increase the contact area between the high-temperature fluid in the heat dissipation cavity and the side wall of the heat dissipation cavity, and then beneficial to improve the heat dissipation efficiency of the heat dissipation fin 110.

[0065] It can be understood that the recesses can be strip-shaped recesses arranged along the up-down direction, thereby facilitating the flow of the high-temperature fluid in the heat dissipation cavity. Of course, in addition thereto, the recesses can also be circular, elliptical or other shapes, which are not limited in the present application.

[0066] It can be understood that in some embodiments, the recesses can be recessed from the outer side wall of the heat dissipation fin 110 into the heat dissipation cavity, thereby not only increasing the contact area between the high-temperature fluid in the heat dissipation cavity and the side wall of the heat dissipation cavity, but also increasing the contact area between the external cold air and the heat dissipation fin 110, so as to further improve the heat dissipation efficiency of the heat dissipation device.

[0067] It can be understood that in some embodiments, the side wall of the heat dissipation cavity can also be provided with at least one protrusion, and the protrusion can also increase the contact area between the high-temperature fluid in the heat dissipation cavity and the side wall of the heat dissipation cavity, thereby improving the heat dissipation efficiency of the heat dissipation fin 110. The protrusion can be protruded from the inner side wall of the heat dissipation cavity to the outside of the heat dissipation fin 110, thereby not only increasing the contact area between the high-temperature fluid in the heat dissipation cavity and the side wall of the heat dissipation cavity, but also increasing the contact area between the external cold air and the heat dissipation fin 110, so as to further improve the heat dissipation efficiency of the heat dissipation device.

[0068] Referring to Figures 1 to 3 In some embodiments, the number of the heat dissipation assemblies 100 is two, and at least one fan 200 is arranged below each heat dissipation assembly 100.

[0069] In the above structure, by arranging at least two heat dissipation assemblies 100 and configuring at least one fan 200 for each heat dissipation assembly 100, the heat dissipation efficiency of the heat dissipation device can be further improved.

[0070] It can be understood that referring to Figures 1 to 3 In some embodiments, one fan 200 is arranged below each heat dissipation assembly 100, and one fan 200 is also arranged between the adjacent two heat dissipation assemblies 100, that is, three fans 200 are arranged corresponding to the two heat dissipation assemblies 100, thereby improving the heat dissipation efficiency of the heat dissipation device.

[0071] It can be understood that the number of the heat dissipation assemblies 100 is two, which is only an example for Figures 1 to 3 In some embodiments, the number of the heat dissipation assemblies 100 can also be three, four or more, which are not limited in the present application.

[0072] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. Heat dissipating device, characterized in that The application relates to a heat dissipation device. The heat dissipation device comprises a heat dissipation assembly (100) and a fan (200), wherein the fan (200) comprises a motor (210) and a fan blade (220), the motor (210) has a motor body (211) and a rotating shaft (212), the motor body (211) is installed on the bottom of the heat dissipation assembly (100), the rotating shaft (212) is rotatably installed on the side of the motor body (211) away from the heat dissipation assembly (100) and extends downward, the fan blade (220) is installed on the rotating shaft (212) and below the motor body (211), the motor body (211) is used for driving the rotating shaft (212) to rotate and driving the fan blade (220) to rotate to send air upward. The fan (200) further comprises a wind pipe (230), the wind pipe (230) is installed on the bottom of the heat dissipation assembly (100), the motor body (211) is installed on the wind pipe (230), and the motor body (211), the rotating shaft (212) and the fan blade (220) are arranged in the wind pipe (230).

2. The heat dissipating device according to claim 1, wherein The upper end of the wind pipe (230) is provided with an air outlet (231), and the lower end or the peripheral wall of the wind pipe (230) is provided with an air inlet (232); the air inlet (232) and the air outlet (231) are in communication with each other.

3. The heat dissipating device according to claim 2, wherein The fan blade (220) comprises a rotating part (221) connected with the rotating shaft (212) and at least two blades (222), the side wall of the rotating part (221) is provided with installation grooves corresponding to the blades (222) and used for installing the blades (222), all the installation grooves are uniformly and spacedly arranged along the circumferential direction of the rotating part (221), and the installation grooves are arranged in an upward inclined manner along the counterclockwise direction or the clockwise direction.

4. The heat dissipating device of claim 1, wherein The inclination angle between the installation grooves and the horizontal plane is 20-50 degrees.

5. The heat dissipating device of claim 4, wherein The heat dissipation assembly (100) comprises a plurality of heat dissipation fins (110) arranged in a horizontal and spaced manner, each two adjacent heat dissipation fins (110) have a heat dissipation channel, and the lower end of the heat dissipation channel has a cold air inlet.

6. The heat dissipating device of claim 3, wherein The heat dissipation device further comprises a support structure installed on the bottom of the heat dissipation assembly (100), and the wind pipe (230) is installed on the side of the support structure away from the heat dissipation assembly (100).

7. The heat dissipating device of claim 2, wherein The heat dissipation assembly (100) comprises a plurality of heat dissipation fins (110) arranged in a horizontal and spaced manner, and all the heat dissipation fins (110) are connected to or abut against the support structure. The heat dissipation fin (110) is internally provided with a heat dissipation cavity, the bottom of the heat dissipation fin (110) is provided with a communication hole in communication with the heat dissipation cavity, the support structure comprises at least one flow collecting pipe (300), and the wind pipe (230) is installed on the outer wall of at least one flow collecting pipe (300); the side wall of the flow collecting pipe (300) is provided with a plug-in hole corresponding to at least one heat dissipation fin (110), the lower end of the heat dissipation fin (110) is plugged into the plug-in hole and makes the communication hole in communication with the flow collecting pipe (300), and the heat dissipation fin (110) and the inner wall of the plug-in hole are welded.

8. The heat dissipating device according to claim 7, wherein ​ 9. The heat dissipating device of claim 8, wherein, The side wall of the heat dissipation cavity is provided with at least one recess or protrusion.

10. The heat dissipating device according to any one of claims 1 to 9, characterized in that, The number of the heat dissipation assemblies (100) is at least one, and at least one fan (200) is correspondingly arranged below each heat dissipation assembly (100).

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