CN206917879U - A cooling fan with a stable structure - Google Patents

Abstract

The utility model relates to a calculator key accessory technical field, in particular to radiator fan that structure is firm, including radiator unit and fan subassembly, radiator unit includes heat dissipation upper ledge, fin group and heat dissipation lower frame, the heat dissipation upper ledge lock joint in the heat dissipation lower frame a through-hole has been seted up to the heat dissipation upper ledge, fan subassembly pass through the screw with the heat dissipation upper ledge is connected and is placed in on the through-hole, the fin group includes a radiating seat be provided with the fin that the multiunit equidistance set up on the radiating seat, the heat dissipation lower frame is provided with an pilot hole, the radiating seat set firmly in on the pilot hole. The utility model discloses simple structure can improve holistic radiating effect more effectively through the optimization to the radiating component inner structure, can protect the fin better through frame structure about the heat dissipation simultaneously, can realize more effective heat dissipation, and the noise is little, improves main frame or other electronic component's functioning speed and life.

Description

A cooling fan with a stable structure

technical field

The utility model relates to the technical field of calculator accessories, in particular to a cooling fan with a stable structure.

Background technique

With the application of electronic products more and more widely, the application safety and long-term effect of electronic products are becoming more and more important. As the cooling fan is the most widely used cooling device for electronic products, it is particularly important to further improve the cooling performance. It is impossible to satisfy the heat dissipation of some major electronic products by relying only on cooling fans. Therefore, heat dissipation parts are usually provided in addition to cooling fans. However, the structure of the current heat dissipation parts is not reasonable enough, and it is necessary to improve it.

Utility model content

The purpose of the utility model is to provide a cooling fan with a simple and stable structure, easy installation, and a good cooling effect in view of the deficiencies of the prior art.

The technical solution adopted by the utility model to achieve the above purpose is: a heat dissipation fan with a stable structure, including a heat dissipation assembly and a fan assembly, the heat dissipation assembly includes a heat dissipation upper frame, a heat dissipation fin group and a heat dissipation lower frame, the heat dissipation upper frame The frame is buckled in the lower heat dissipation frame, and a through hole is opened in the upper heat dissipation frame, the fan assembly is connected with the upper heat dissipation frame by screws and placed on the through hole, and the heat sink group includes A heat dissipation seat, on which a plurality of sets of heat dissipation fins are arranged equidistantly, the heat dissipation lower frame is provided with an assembly hole, the heat dissipation seat is fixed on the assembly hole, on the heat dissipation lower frame The end face is provided with a limiting structure for limiting the heat sink.

Further, the fan assembly includes a fan frame, an assembly inner cavity is formed on the fan frame, an assembly bracket is provided on the assembly cavity, and a copper sleeve is connected to the assembly bracket, and the copper sleeve is from bottom to top The PCBA assembly and the electromagnetic assembly are connected in turn, the electromagnetic assembly is connected with a ball bearing, the ball bearing is connected with a shaft core, the shaft core is connected with a fan blade, and the fan blade is provided with a wrapping PCBA assembly and The magnetic sleeve of the electromagnetic assembly, the magnetic strip is sleeved in the magnetic sleeve.

Further, the electromagnetic assembly includes an upper silicon steel sheet, a winding frame and a lower silicon steel sheet which are sequentially stacked and fixed, and a coil is arranged on the winding frame.

Further, the limiting structure is two sets of limiting units arranged on the inner end surface of the lower heat dissipation frame, and each set of limiting units includes two limiting protrusions respectively arranged at the first and last ends of the inner end surface of the lower heat dissipation frame.

Further, the heat sink is in the shape of an "E" as a whole, and the heat sink includes a first limiting part, a fixing part and a second limiting part, between the fixing part and the first limiting part and between the fixing part and the second limiting part A first heat dissipation through hole and a second heat dissipation through hole are respectively provided between them, and the height of the fixing part is smaller than that of the first limiting part and the second limiting part.

Further, the inner end of the heat dissipation lower frame is further provided with a third heat dissipation through hole, and the third heat dissipation through hole corresponds to the position of the first limiting portion and the second limiting portion.

Further, a protrusion is formed on the inner side wall of the heat dissipation lower frame, and a hooking groove is provided on the side wall of the heat dissipation upper frame, and the height of the protrusion matches the height of the hook groove.

The beneficial effects of the utility model are: the utility model has a simple structure, and the overall heat dissipation effect can be improved more effectively by optimizing the internal structure of the heat dissipation assembly; Stable work, and the heat sink with special structure of the utility model cooperates with the fan assembly fixed on the heat dissipation upper frame, which can realize more effective heat dissipation, low noise, and improve the operating speed and service life of the computer host or other electronic components.

Description of drawings

Fig. 1 is the structure schematic diagram of the solid cooling fan of the utility model;

detailed description

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

As shown in Figure 1, a heat dissipation fan with a stable structure of the utility model includes a heat dissipation assembly and a fan assembly. The heat dissipation assembly includes a heat dissipation upper frame 1, a heat dissipation fin group and a heat dissipation lower frame 2. Connected in the heat dissipation lower frame 2, specifically, a protrusion 3 is formed on the inner side wall of the heat dissipation lower frame 2, and the side wall of the heat dissipation upper frame 1 is provided with a hooking groove 4, and the protrusion The height of 3 matches the height of the articulated groove 4. When assembling, the articulated groove 4 is directly aligned with the protrusion 3 and the protrusion 3 falls into the articulated groove 4. The shape of the protrusion 3 in the embodiment is triangular, which is convenient for installation and has a good anti-loosening effect at the same time;

The heat sink group includes a heat sink 5 on which multiple sets of heat sinks 6 are arranged equidistantly, the heat sink lower frame 2 is provided with an assembly hole 7, and the heat sink 5 is fixed on the On the assembly hole 7, the cooling fin 6 is in the shape of an "E" as a whole, and the cooling fin 6 includes a first limiting part 8, a fixing part 9 and a second limiting part 10, and the gap between the fixing part 9 and the first limiting part And between the fixing part 9 and the second limiting part 10, a first heat dissipation through hole 11 and a second heat dissipation through hole 12 are respectively arranged, and the height of the fixing part 9 is smaller than that of the first limiting part 8 and the second limiting part 10 After the heat sink 5 is installed in the assembly hole 7 through the setting of different heights, the first limiting part 8 and the second limiting part 10 can better cooperate with the limiting protrusion 3 without affecting the first heat dissipation channel. The hole 11 and the second heat dissipation through hole 12 ensure that a sufficient distance is formed between the first heat dissipation through hole 11 and the second heat dissipation through hole 12 and the heat dissipation lower frame 2, which can better guide the wind generated by the fan assembly, and then Better realize the heat exchange between the wind and the heat sink 6, and can better form the guide flow of the wind direction, so that the hot air can be discharged outside the heat dissipation assembly along the first heat dissipation through hole 11 and the second heat dissipation through hole 12. The end surface of the heat dissipation lower frame 2 is provided with a limiting structure for limiting the heat sink 6, the limiting structure is two sets of limiting units arranged on the inner end surface of the heat dissipation lower frame 2, and each group of limiting units includes two Two limit protrusions 13 respectively arranged on the first and last ends of the inner end surface of the heat dissipation lower frame 2, through the limit protrusions 13, the first limit portion 8 and the second limit portion 10 of the heat sink 6 play a role of left and right limit, avoiding being affected by When the external force acts, the cooling fin 6 shakes, so as to better ensure the normal operation of the cooling fin 6. The inner end of the heat dissipation lower frame 2 is also provided with a third heat dissipation through hole 14, and the third heat dissipation through hole 14 is connected with the The positions of the first limiting portion 8 and the second limiting portion 10 correspond, and the setting of the third heat dissipation through hole 14 can assist the first heat dissipation through hole 11 and the second heat dissipation through hole 12 to discharge hot air, and form a better The wind guides the flow to improve the overall cooling effect.

A through hole 15 is opened in the heat dissipation upper frame 1, the fan assembly is connected with the heat dissipation upper frame 1 by screws and placed on the through hole 15, the fan assembly includes a fan frame 16, and the fan assembly includes a fan frame 16. An assembly cavity 17 is formed on the frame 16, an assembly bracket 18 is arranged on the assembly cavity 17, a plurality of air outlet holes 29 are arranged on the assembly bracket 18, a copper sleeve 19 is connected to the assembly bracket 18, and the copper sleeve 19 is connected to the assembly bracket 18. The sleeve 19 is sequentially connected with 20 pieces of PCBA groups and electromagnetic components from bottom to top. 22 is provided with a coil, and the electromagnetic assembly is connected with a ball bearing 24, and the ball bearing 24 is connected with a shaft core 25, and the shaft core 25 is connected with a fan blade 26, and the fan blade 26 is provided with a packaged 20 pieces of PCBA sets and the magnetic sleeve 27 of the electromagnetic assembly, the magnetic sleeve 27 is sleeved with a magnetic strip 28, so that the internal structure of the fan assembly is optimized, the overall structure is more reasonable, and the wind energy generated is stronger. Through the PCBA set of 20 pieces The operation of the above-mentioned electromagnetic components is controlled to drive the rotation of the fan blades 26 to realize the generation of wind and increase the cooling effect.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (7)

1. A kind of 1. radiator fan of stabilized structure, it is characterised in that including radiating subassembly and fan component, the radiating subassembly Including radiating upper ledge, groups of fins and radiating lower frame, the radiating upper ledge is buckled in inframe under the radiating, in the radiating Frame offers a through hole, and the fan component is connected with the radiating upper ledge by screw and is placed on the through hole, described to dissipate Backing group includes a radiating seat, and multigroup fin being placed equidistant is provided with the radiating seat, and the radiating lower frame is set There is a pilot hole, the radiating seat is fixedly arranged on the pilot hole, is provided with the end face of the radiating lower frame scattered for limiting The position limiting structure of backing.
2. 2. the radiator fan of stabilized structure according to claim 1, it is characterised in that：The fan component includes fan frame, Assembling inner chamber is formed in the fan frame, mount support is provided with the assembling inner chamber, the mount support is connected with copper sheathing, The copper sheathing is connected with PCBA components and electromagnetic assembly in turn from below to up, and ball bearing, institute are connected with the electromagnetic assembly State ball bearing and be connected with a shaft core, the shaft core is connected with flabellum, be provided with the flabellum parcel PCBA components and The magnetosheath of electromagnetic assembly, magnetic stripe is socketed with the magnetosheath.
3. 3. the radiator fan of stabilized structure according to claim 2, it is characterised in that：The electromagnetic assembly includes folding successively Fixed upper silicon steel sheet, winding frame and lower silicon steel sheet are closed, coil is provided with the winding frame.
4. 4. the radiator fan of stabilized structure according to claim 1, it is characterised in that：The position limiting structure is is arranged at Two groups of position-limiting units of radiating lower frame inner face are stated, every group of position-limiting unit is respectively arranged at radiating lower frame the inner kept man of a noblewoman including two The spacing preiection at tail both ends.
5. 5. the radiator fan of stabilized structure according to claim 1, it is characterised in that：The fin is in integrally " E " word Shape, the fin include the first limited section, fixed part and the second limited section, the fixed part and the first limited section and fixed part Between the first thermal vias and the second thermal vias are respectively arranged between the second limited section, the height of the fixed part is less than First limited section and the second limited section.
6. 6. the radiator fan of stabilized structure according to claim 5, it is characterised in that：The inner end of the radiating lower frame is also It is provided with the 3rd thermal vias, the 3rd thermal vias and the position correspondence of first limited section and the second limited section.
7. 7. the radiator fan of stabilized structure according to claim 1, it is characterised in that：In the madial wall of the radiating lower frame Projection is formed, the side wall of the radiating upper ledge is provided with mounting groove, the raised height and the height of the mounting groove Matching.