Computer fan with external drive structure

Abstract

The computer fan of the external driving structure comprises a frame body and an impeller, a pivoting cavity is formed in the middle of the frame body, a containing cavity is formed in the frame body, a stator is arranged in the containing cavity, and the impeller is installed in the pivoting cavity in a pivoting mode. The impeller comprises blades extending from the axis to the pivoting cavity and a circular ring frame arranged at the ends of the outer sides of the blades. The circular ring frame is provided with a rotor matched with the stator. The stator is used for driving the impeller to rotate. In the actual design, a traditional middle stator and a traditional middle rotor are changed, the stator and the rotor are arranged on the frame body and the annular frame of the impeller respectively, then rotation of the impeller is achieved, the torque of the improved computer fan is larger, the rotation upper limit of the improved computer fan is higher, meanwhile, the driving area is larger, heat dissipation of the motor is better, and the service life of the motor is prolonged. And the service life of the computer fan can be effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the field of computer fans, and particularly to a computer fan with an external drive structure. Background Art

[0002] Computer fans, also known as cooling fans, are generally used for heat dissipation and are provided for use with radiators and computer cases. With the development of modular fans, the current design trend is to set up a cooperation structure between fans to achieve the mutual cooperation of multiple fans, which can meet the needs of DIY designers.

[0003] In the existing design of computer fans, it generally includes a drive motor and blades provided at the drive end of the drive motor to achieve the rotation of the blades. However, the fans with a central axis structure have the following problems: their upper speed limit is relatively low, so the requirement for the center of gravity is relatively high. Therefore, when the speed is greater than a predetermined value, it is easy to have a problem of breaking away from the rotating shaft.

[0004] At the same time, in order to have a light or a display screen in the middle, for example, Chinese Patent No. 201921468806.8 was designed. Its structure is complex, and during the long-term working process, it is easy to have wear and tear, resulting in the damage of wireless charging (its speed is relatively high, such as 2200 revolutions per minute), which affects the stable use. Summary of the Invention

[0005] The main purpose of the present invention is to propose a computer fan with an external drive structure, aiming to improve the existing computer fan structure and adjust the structure according to actual needs.

[0006] To achieve the above object, the present invention proposes a computer fan with an external drive structure, including:

[0007] A frame body, a pivot cavity is provided in the middle of the frame body, a receiving cavity is provided inside the frame body, and a stator is provided in the receiving cavity;

[0008] An impeller, the impeller is pivotally installed in the pivot cavity. The impeller includes blades extending from the axis center towards the pivot cavity direction and a circular ring frame provided at the outer end of the blade. The circular ring frame is provided with a rotor that cooperates with the stator;

[0009] The stator is used to drive the impeller to rotate.

[0010] In the actual design, by changing the traditional central stator and rotor, the stator and rotor are respectively arranged on the frame body and the circular ring frame of the impeller, thereby realizing the rotation of the impeller. The improved computer fan has a greater torque, so its rotation upper limit is higher. At the same time, the driving area is larger, so the heat dissipation of the motor is better, which can effectively improve the service life of the computer fan;

[0011] Its advantages are as follows: By means of an external drive structure cooperating with a hollow shaft, the function of emitting light or displaying predetermined data in the middle of the computer fan is realized. Its structure is simple and stable, changing the existing traditional design. Description of the Drawings

[0012] Figure 1 Schematic three-dimensional view of the present invention;

[0013] Figure 2 Horizontal cross-sectional view of the present invention;

[0014] Figure 3 Schematic view of the half shaft of the present invention.

[0015] Figure 4 Schematic view of the present invention when provided with a first bearing;

[0016] Figure 5 Schematic view of the present invention when provided with a first bearing and a display device;

[0017] Figure 6 Schematic view of the present invention when provided with a second bearing and a display device;

[0018] Figure 7 Schematic three-dimensional view of the impeller.

[0019] In the figure,

[0020] 1 is a housing, 10 is a pivot cavity, 11 is a receiving cavity,

[0021] 2 is an impeller, 20 is a circular ring frame, 21 is a blade,

[0022] 31 is a stator, 32 is a rotor,

[0023] 41 is a first bearing, 42 is a second bearing,

[0024] 51 is a shaft hole, 52 is a rotating shaft, 53 is a through hole,

[0025] 6 is a display device, 61 is a first electrical connection part, 62 is a second electrical connection part. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that if there are directional indications involved in the embodiments of the present invention (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first" or "second" involved in the embodiments of the present invention, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] As Figures 1 to 7 shown, a computer fan with an external drive structure includes:

[0030] A housing 1, a pivot cavity 10 is provided in the middle of the housing 1, a receiving cavity 11 is provided inside the housing 1, and a stator 31 is provided in the receiving cavity 11;

[0031] An impeller 2, the impeller 2 is pivotally installed in the pivot cavity 10, the impeller 2 includes blades 21 extending from the axis towards the pivot cavity 10 and a circular ring frame 20 provided at the outer end of the blades 21, and a rotor 32 cooperating with the stator 31 is provided on the circular ring frame 20;

[0032] The stator 31 is used to drive the impeller 2 to rotate.

[0033] In actual design, the traditional central stator 31 and rotor 32 are changed, and the stator 31 and rotor 32 are respectively arranged on the housing 1 and the circular ring frame 20 of the impeller 2, thereby realizing the rotation of the impeller 2. The improved computer fan has a greater torque, so its rotation limit is higher. At the same time, the driving area is larger, so the heat dissipation of the motor is better, and the service life of the computer fan can be effectively improved.

[0034] Specifically, a first bearing 41 is provided between the outer wall of the circular ring frame 20 and the inner wall of the pivot cavity 10. If there is a single first bearing 41, a shaft hole 51 may not be provided in the middle but it has an axis.

[0035] In an embodiment of the present invention, a shaft hole 51 is provided in the middle of the blade 21, a rotating shaft 52 matching the shaft hole 51 is provided on the frame 1, and a second bearing is provided between the rotating shaft 52 and the shaft hole 51. In actual design, the setting of the first bearing 41 and the second bearing 42 can ensure the stability of the rotation of the impeller 2. At the same time, according to actual needs, only the first bearing 41 or the second bearing 42 can be set. Of course, both bearings can also be set.

[0036] Specifically, the shaft hole 51 is a semi-hole or a through-hole. When the shaft hole 51 is a through-hole, the rotating shaft is fixedly arranged and extends upward, and a display device 6 is provided at the top of the rotating shaft. Therefore, it does not affect the display device 6 while the impeller 2 rotates. At the same time, its structure is simple and stable, changing the traditional thinking.

[0037] In an embodiment of the present invention, the middle part of the rotating shaft is a through-hole for the cable of the display device 6 to pass through, thereby realizing power-on.

[0038] Specifically, the rotating shaft is provided with an integrally formed first electrical connection part 61, and the display device 6 is provided with a second electrical connection part 62 matching the first electrical connection part 61, thereby making the replacement or installation of the display device 6 more convenient, and solving the problem that the existing computer fan needs to be provided with a display device 6 in the middle or the lighting device requires a complex structure to achieve.

[0039] In an embodiment of the present invention, the frame 1 is rectangular or circular. In actual design, different shapes can be set according to needs. It is preferably in the shape of an existing rectangular computer fan, so as to meet the installation and use of the existing fan.

[0040] Specifically, the stator 31 is a magnetic induction coil, and the rotor 32 is a permanent magnet.

[0041] In an embodiment of the present invention, the first electrical connection part 61 is a pin integrally formed with the rotating shaft, and the second electrical connection part 62 is a gold finger provided on the display device 6.

[0042] Specifically, the display device 6 is composed of an LCD screen, an LED screen or a plurality of LED lights arranged in a matrix. The display device and the rotating shaft are detachably matched by a buckle, a screw or a magnetic attraction.

[0043] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A computer fan with an external drive structure, characterized in that: include: A frame, wherein a pivot cavity is provided in the middle of the frame, an accommodating cavity is provided inside the frame, and a stator is provided in the accommodating cavity; An impeller, the impeller is pivotally mounted in the pivot cavity, the impeller comprises blades extending from the axis toward the pivot cavity and a circular ring frame arranged at the outer end of the blade, the circular ring frame is provided with a rotor matched with the stator; The stator is used to drive the impeller to rotate.

2. The computer fan with an external drive structure as claimed in claim 1, characterized in that: A first bearing is arranged between the outer wall of the circular ring frame and the inner wall of the pivot cavity.

3. The computer fan with an external drive structure as claimed in claim 1, characterized in that: An axial hole is arranged in the middle of the blade, a rotating shaft matched with the axial hole is arranged in the frame body, and a second bearing is arranged between the rotating shaft and the axial hole.

4. The computer fan with an external drive structure as claimed in claim 3, characterized in that: The shaft hole is a half hole or a through hole. When the shaft hole is a through hole, the rotating shaft is fixedly arranged and extends upward, and a display device is arranged on the top of the rotating shaft.

5. The computer fan with an external drive structure as claimed in claim 4, characterized in that: The middle part of the rotating shaft is a through hole, and the through hole is used for the cable of the display device to pass through.

6. The computer fan with an external drive structure as claimed in claim 4, characterized in that: The rotating shaft is provided with an integrally formed first electrical connection portion, and the display device is provided with a second electrical connection portion matched with the first electrical connection portion.

7. The computer fan with an external drive structure as claimed in claim 4, characterized in that: The frame is rectangular or circular.

8. The computer fan with an external drive structure as claimed in claim 4, characterized in that: The stator is a magnetic induction coil, and the rotor is a permanent magnet.

9. The computer fan with an external drive structure as claimed in claim 6, characterized in that: The first electrical connection part is a pin formed integrally with the rotating shaft, and the second electrical connection part is a gold finger provided on the display device. The display device and the rotating shaft are detachably matched by a buckle, a screw or a magnetic attraction.

10. The computer fan with an external drive structure as claimed in claim 4, characterized in that: The display device is composed of an LCD screen, an LED screen or a plurality of LED lamps arranged in a matrix.

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