CN220522846U

CN220522846U - Small-sized cooling fan

Info

Publication number: CN220522846U
Application number: CN202322225875.9U
Authority: CN
Inventors: 吉靖
Original assignee: Dongguan Kehao Plastic Products Co ltd
Current assignee: Dongguan Kehao Plastic Products Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-02-23
Anticipated expiration: 2033-08-17

Abstract

The utility model relates to the technical field of fans, in particular to a small-sized cooling fan, which comprises an outer frame and fan blades arranged in the outer frame, wherein the outer frame comprises a frame body and a mounting disc arranged in the frame body, a plurality of support bars are connected between the mounting disc and the inner wall of the frame body, the fan blades comprise a main shaft and a plurality of blades arranged on the outer peripheral surface of the main shaft, the main shaft is matched with the mounting disc, a containing cavity is formed between the main shaft and the mounting disc, a rotor is arranged at the axis of the main shaft, a mounting sleeve is arranged at the axis of the mounting disc and is rotationally connected in the mounting sleeve, the mounting sleeve is used for mounting a stator, the stator is positioned in the containing cavity, clamping strips are arranged on the side wall of one support bar, a cavity is arranged on the side wall of one side of the frame body, two ends of the cavity penetrate through the two opposite side surfaces of the frame body, and a power wire penetrates through the cavity Rao Sheyu and is connected to the stator on the clamping strips. The utility model has the effect that the power line is not easy to swing.

Description

Small-sized cooling fan

Technical Field

The utility model relates to the technical field of fans, in particular to a small-sized cooling fan.

Background

A heat radiation fan is an electronic device for radiating heat, which provides ventilation by rotating blades or fins to help cool electronic components. They are commonly used in computer hardware such as processors, graphics cards, and memory, as well as other electronic devices that require heat dissipation. The heat radiation fan can be powered by an internal electronic component or an external power supply, and the heat radiation effect can be controlled by adjusting the rotation speed of the fan. Types of the heat radiation fan include an axial flow fan, a centrifugal fan, a cross flow fan, an air flow fan, and the like. Axial fans use rotating blades to push air, while centrifugal fans use rotating disks to push air out. The cross flow fan uses one cylindrical blade to push air, and the air flow fan uses a plurality of blades to push air. However, the current power cord of the cooling fan has the problem of being weak, and is easy to swing, so that the power cord is contacted with the blades of the fan.

Disclosure of Invention

In order to prevent the power line from swinging, the utility model provides a small-sized cooling fan aiming at the problems in the prior art.

The utility model provides a small-sized cooling fan, which adopts the following technical scheme:

the utility model provides a small-size radiator fan, includes the frame with set up in the flabellum in the frame, the frame include the framework with set up in mounting disc in the framework, the mounting disc with be connected with many support bars between the framework inner wall, the flabellum include the main shaft and set up in a plurality of blades of main shaft outer peripheral face, the main shaft with mounting disc looks adaptation, the main shaft with be formed with between the mounting disc and hold the chamber, the axle center of main shaft is provided with the rotor, the axle center of mounting disc is provided with the installation sleeve, the rotor rotate connect in the installation sleeve, the installation sleeve is used for installing the stator, the stator is located in holding, wherein one of them the lateral wall of support bar is provided with the draw-in bar, one side lateral wall of framework is provided with the cavity, the both ends of cavity link up in the opposite both sides surface of framework, the power cord passes the cavity Rao Sheyu be connected to the stator on the draw-in bar.

Preferably, the mounting plate is provided with a protrusion towards the surface edge of the main shaft in a circumferential surrounding manner, the protrusion is provided with a yielding groove, and the power line passes through the yielding groove.

Preferably, a bending part is arranged at one end of the clamping strip away from the supporting strip, and the bending part is bent towards the direction away from the blade.

Preferably, a surface of the side of the clamping strip facing away from the blade is level with a surface of the mounting plate facing the blade.

Preferably, a bearing is connected between the rotor and the mounting sleeve, the rotor is coaxially and fixedly connected with an inner ring of the bearing, and an outer ring of the bearing is fixedly connected with the inner wall of the mounting sleeve.

Preferably, a limiting ring is circumferentially arranged on the inner wall of the mounting sleeve, and an outer ring of the bearing is attached to one end of the limiting ring.

Preferably, the number of the supporting bars is four, and the four supporting bars are arranged at intervals along the circumferential direction of the mounting disc.

In summary, the present utility model includes at least one of the following beneficial technical effects:

the power line supplies power to the stator and can drive the rotor to rotate so as to drive the main shaft and the blades to rotate, thereby generating air flow to radiate heat of the equipment, the clamping strip can play a role of propping against between the cavity and the abdication groove, the power line is not easy to swing, and the bending part can lead the power line not easy to separate from the clamping strip

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic front view of the present utility model.

Fig. 3 is a schematic back view of the present utility model.

Fig. 4 is an exploded view of the present utility model.

Fig. 5 is a schematic structural view of the outer frame in the present utility model.

Fig. 6 is a schematic structural view of another view of the outer frame according to the present utility model.

FIG. 7 is a schematic view of a fan blade according to the present utility model.

In the figure: 1. an outer frame; 11. a frame; 12. a mounting plate; 121. a protrusion; 122. a relief groove; 13. a support bar; 14. a mounting sleeve; 141. a limiting ring; 15. clamping strips; 151. a bending part; 16. a cavity; 2. a fan blade; 21. a main shaft; 22. a blade; 23. a rotor; 24. injection molding the block;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships that are conventionally put in use of the product of the application, are merely for convenience of description of the present application and simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The embodiment of the utility model discloses a small-sized cooling fan, which is shown in fig. 1-7, and comprises an outer frame 1 and fan blades 2 arranged in the outer frame 1, wherein the outer frame 1 comprises a frame 11 and a mounting plate 12 arranged in the frame 11, the frame 11 is square, the mounting plate 12 is circular, the mounting plate 12 is positioned in the middle of the frame 11, four supporting bars 13 are connected between the mounting plate 12 and the inner wall of the frame 11, one ends of the supporting bars 13 are fixedly connected to the inner wall of the frame 11, the other ends of the supporting bars 13 are fixedly connected to the edge of the mounting plate 12, the four supporting bars 13 are arranged at intervals along the circumferential direction of the mounting plate 12, and the frame 11, the supporting bars 13 and the mounting plate 12 are integrally molded by injection molding.

The fan blade 2 comprises a main shaft 21 and a plurality of blades 22 arranged on the outer peripheral surface of the main shaft 21, wherein the main shaft 21 is in a cylindrical shape, one end of the main shaft 21 facing the mounting disc 12 is in a hollow shape, the main shaft 21 and the mounting disc 12 are coaxially arranged, the diameters of the main shaft 21 and the mounting disc 12 are equal, the axis of the main shaft 21 is coaxially and fixedly provided with a rotor 23, an injection molding block 24 is integrally formed in the main shaft 21, the injection molding block 24 is in a circular truncated cone shape, the large opening end of the injection molding block 24 is connected with the inner wall of the main shaft 21, one end of the rotor 23 is embedded in the injection molding block 24, the injection molding block 24 can enable the rotor 23 to be fixedly arranged on the main shaft 21, the axis of the mounting disc 12 is coaxially and integrally injection molded with a mounting sleeve 14, two ends of the mounting sleeve 14 are in a through arrangement, the rotor 23 is coaxially and movably inserted in the mounting sleeve 14, a bearing is connected between the rotor 23 and the mounting sleeve 14, the rotor 23 is coaxially and fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixedly connected with the inner wall of the mounting sleeve 14, and the rotor 23 can smoothly rotate in the mounting sleeve 14 through the bearing, and the friction force is low; meanwhile, the limiting ring 141 is formed by circumferential integral injection molding on the inner wall of the mounting sleeve 14, the outer ring of the bearing is attached to one end part of the limiting ring 141, which is far away from the main shaft 21, and the limiting ring 141 can prevent the bearing from excessively sliding into the mounting sleeve 14 when the bearing is assembled, and the bearing can be assembled in place when the bearing is abutted to the limiting ring 141.

The mounting sleeve 14 is used for mounting a stator (not shown in the figure), the stator is fixedly sleeved on the mounting sleeve 14, a containing cavity is formed between the main shaft 21 and the mounting disc 12, the stator is located in the containing cavity, and the main shaft 21 is covered on the stator. In addition, the surface edge of the mounting plate 12 facing the main shaft 21 is provided with a bulge 121 in an integrated manner along the circumferential direction of the mounting plate 12, the bulge 121 is provided with a yielding groove 122, meanwhile, the side wall of one supporting bar 13 close to the yielding groove 122 is integrally provided with a clamping strip 15, one side outer side wall of the frame 11 is provided with a cavity 16, two ends of the cavity 16 penetrate through two opposite side surfaces of the frame 11, a power wire penetrates through the cavity 16 and is wound on the clamping strip 15, and then penetrates through the yielding groove 122 to be connected with a stator through wires, so that the stator is powered. In addition, the surface of one side of the clamping strip 15, which is far away from the blade 22, is leveled with the surface of the mounting plate 12, which is far away from the blade 22, the power line winds around the surface of the clamping strip 15, which is far away from the blade 22, and meanwhile, one end of the clamping strip 15, which is far away from the supporting strip 13, is integrally formed with a bending part 151, and the bending part 151 is bent in a direction far away from the blade 22. After the power line passes through the cavity 16 and bypasses the clamping strip 15 to penetrate into the abdication groove 122, the clamping strip 15 can play a role of propping between the cavity 16 and the abdication groove 122, so that the power line is not easy to swing, and the bending part 151 can prevent the power line from being separated from the clamping strip 15.

The implementation principle of the small-sized cooling fan provided by the embodiment of the utility model is as follows: draw forth the power cord from cavity 16 in, then walk around card strip 15 and wear into and step down in the groove 122, the power cord is supplied with power to the stator and can drive rotor 23 and rotate, thereby drive main shaft 21 and blade 22 rotation, thereby produce the air current and dispel the heat to equipment, and card strip 15 can play a tight effect of supporting between cavity 16 and step down in groove 122, make the difficult emergence swing of power cord, and kink 151 can make the power cord be difficult for breaking away from out on the card strip 15, simultaneously, the radiator fan of this application is small in size, can be applicable to on the miniature equipment.

The present utility model is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present utility model.

Claims

1. A small-sized heat radiation fan, characterized in that: including frame (1) with set up in flabellum (2) in frame (1), frame (1) include framework (11) with set up in mounting disc (12) in framework (11), mounting disc (12) with be connected with many support bars (13) between framework (11) inner wall, flabellum (2) including main shaft (21) and set up in a plurality of blades (22) of main shaft (21) outer peripheral face, main shaft (21) with mounting disc (12) looks adaptation, main shaft (21) with be formed with between mounting disc (12) and hold the chamber, the axle center of main shaft (21) is provided with rotor (23), the axle center of mounting disc (12) is provided with installation sleeve (14), rotor (23) swivelling joint in installation sleeve (14), installation sleeve (14) are used for installing the stator, one of them the lateral wall of main shaft (21) outer peripheral face be provided with card strip (15), one side of framework (11) is provided with holding strip (16) between the mounting disc (12), both sides of card (16) are passed in cavity (16) are held in the cavity (16), the both sides of connecting the cavity (16) are passed.

2. A compact cooling fan as set forth in claim 1, wherein: the mounting plate (12) is circumferentially provided with a protrusion (121) towards the surface edge of the main shaft (21), the protrusion (121) is provided with a yielding groove (122), and a power line passes through the yielding groove (122).

3. A compact cooling fan as set forth in claim 2, wherein: one end of the clamping strip (15) far away from the supporting strip (13) is provided with a bending part (151), and the bending part (151) is bent and arranged in a direction far away from the blade (22).

4. A compact cooling fan according to claim 3, wherein: a side surface of the clamping strip (15) facing away from the blade (22) is leveled with a surface of the mounting plate (12) facing the blade (22).

5. A compact cooling fan as set forth in claim 1, wherein: a bearing is connected between the rotor (23) and the mounting sleeve (14), the rotor (23) is coaxially and fixedly connected with an inner ring of the bearing, and an outer ring of the bearing is fixedly connected with the inner wall of the mounting sleeve (14).

6. A compact cooling fan as set forth in claim 5, wherein: the inner wall circumference of installation sleeve (14) is provided with spacing ring (141), the outer lane of bearing laminating in the one end tip of spacing ring (141).

7. A compact cooling fan as set forth in claim 1, wherein: the number of the supporting bars (13) is four, and the four supporting bars (13) are arranged at intervals along the circumferential direction of the mounting disc (12).