Computer cooling fan with dustproof effect

Abstract

The utility model relates to the field of cooling fans, and discloses a computer cooling fan with a dustproof effect, which comprises a protective shell, a top opening and a bottom opening of the protective shell are fixedly connected with circular shells, the inner wall of the protective shell is fixedly connected with a connecting frame, and the bottom of the connecting frame is fixedly connected with a double-shaft motor. An upper output shaft of the double-shaft motor penetrates through the connecting frame and extends to the top of the connecting frame, the upper output shaft is fixedly sleeved with a connecting rod, and two L-shaped scraping plates are fixedly connected to the outer wall of each of a lower output shaft of the double-shaft motor and the outer wall of the connecting rod. The dust removal device is easy to use, a screw rod can be inserted into the round hole to install the base in a machine box, when the double-shaft motor is started, the multiple L-shaped scraping plates can be driven to rotate to scrape dust on the surface of the round shell and the outer wall of the protection shell, and the multiple second ventilation holes and the first ventilation holes can guarantee air circulation in the protection shell; the plurality of fan blades adopt the circular ring to strengthen the connection and fix the wind direction.

Description

Technical Field

[0001] The utility model relates to the field of cooling fans, in particular to a computer cooling fan with dustproof effect. Background Art

[0002] The utility model with the authorization announcement number CN211059049U discloses a computer cooling fan, which relates to the technical field of cooling fans, including a housing, both sides of the housing are provided with a slide groove, and a filter screen is provided inside the slide groove, a cavity is provided inside the housing, and one end of the cavity is provided with a through hole extending to the outside of the housing, a first fixing plate is fixed inside the cavity, and a cooling fan is provided inside the cavity. The utility model sets a slide groove, and the filter screen passes into the housing from opposite positions respectively, the rack drives the gear to rotate, the damping pad increases the friction coefficient of the gear rotation, the filter screen completely covers the position of the cavity, and prevents dust from directly contacting the cooling fan blades, and the first fixing plate and the second fixing plate are detachably connected by bolts and nuts, which facilitates the installation and removal of the cooling fan, and the handle is rotated in the opposite direction, so that the gear rotates in the opposite direction to push the filter screen to move out of the slide groove.

[0003] The above utility model patent cannot solve the dust accumulation problem from the root. If the filter needs to be cleaned, it needs to be disassembled. Because the computer cooling fan is installed inside the chassis, it is inconvenient to clean the dust. Therefore, the technicians in this field provide a computer cooling fan with dustproof effect to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a computer cooling fan with dustproof effect to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a computer cooling fan with dustproof effect, comprising a protective shell, the top opening and the bottom opening of the protective shell are both fixedly connected with a circular shell, the inner wall of the protective shell is fixedly connected with a connecting frame, the bottom of the connecting frame is fixedly connected with a dual-axis motor, the upper output shaft of the dual-axis motor passes through the connecting frame and extends to the top of the connecting frame, and a connecting rod is fixedly sleeved on the upper output shaft, and two L-shaped scrapers are fixedly connected to the lower output shaft of the dual-axis motor and the outer wall of the connecting rod, a plurality of second vents are annularly penetrated on the two circular shells, and the bottom of the L-shaped scraper is tightly fitted with the second vent, two groups of first vents are arranged in an annular array on the outer wall of the protective shell, and the side inner wall of the L-shaped scraper is tightly fitted with the first vent, two fan bodies are fixedly sleeved on the outer wall of the connecting rod, and a plurality of fan blades are arranged annularly on the outer wall of the two fan bodies, and two connecting plates are fixedly connected to the outer wall of the protective shell, and the bottoms of the two connecting plates are fixedly connected to the same base.

[0006] As a further solution of the utility model: shock-absorbing pads are fixedly connected to the four corners of the top and bottom of the base, and circular holes are opened through the plurality of bases, and the circular holes penetrate the bases.

[0007] As a further solution of the utility model: a rubber ring is sleeved on the outer wall of the upper output shaft of the dual-axis motor, and the outer wall of the rubber ring is in contact with the inner wall of the connecting frame.

[0008] As a further solution of the utility model: connecting holes are formed through the two circular shells, the connecting rod passes through the upper connecting hole, and the lower output shaft of the dual-axis motor passes through the lower connecting hole.

[0009] As a further solution of the utility model: a same circular ring is fixedly connected to the outer walls of the plurality of blades, and circular rings are arranged on the outer walls of the upper and lower plurality of blades.

[0010] As a further solution of the utility model: the connecting frame is cross-shaped, and a wire-passing hole is formed through the outer wall of the protective shell, and the wire-passing hole extends through to the bottom of the connecting frame.

[0011] As a further solution of the utility model: the dual-axis motor is located below the fan body, and the protective shell and the circular shell are both made of anti-static material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After the dual-axis motor is started, it can respectively drive the connecting rod and the lower output shaft to rotate. When the connecting rod and the lower output shaft rotate, they will drive the upper and lower multiple L-shaped scrapers to rotate. After the L-shaped scraper rotates, it will produce friction with the surface of the circular shell and the outer wall of the protective shell, thereby scraping off the accumulated dust, and when the connecting rod rotates, it can drive the two fan bodies to rotate at the same time. When the fan body rotates, it can drive multiple fan blades and circular rings to rotate for heat dissipation. Multiple circular rings are connected by fan blades, which can make the wind direction more fixed and not easy to spread, and also strengthen the connection between multiple fan blades. The connecting frame adopts a cross-shaped design for better ventilation. Multiple second air holes and the first air holes can allow air circulation to assist in heat dissipation. The protective shell and the circular shell are made of anti-static materials, which are less likely to absorb dust accumulation.

[0014] The utility model is easy to use. A screw can be inserted into the circular hole to install the base in the chassis. When the dual-axis motor is started, multiple L-shaped scrapers can be driven to rotate to scrape dust on the surface of the circular shell and the outer wall of the protective shell. Multiple second ventilation holes and first ventilation holes can ensure air circulation in the protective shell. Multiple fan blades are connected by circular rings to strengthen the connection and fix the wind direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional explosion schematic diagram of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the dual-axis motor in the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the fan blade in the utility model;

[0019] Figure 5 It is a cross-sectional schematic diagram of the utility model.

[0020] In the figure: 1. protective shell; 2. first air vent; 3. wire hole; 4. connecting plate; 5. base; 6. shock-absorbing pad; 7. round hole; 8. round shell; 9. second air vent; 10. L-shaped scraper; 11. connecting rod; 12. fan blades; 13. ring; 14. dual-axis motor; 15. connecting frame; 16. connecting hole; 17. rubber ring; 18. fan body. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 In the embodiment of the utility model, a computer cooling fan with dustproof effect includes a protective shell 1, the top opening and the bottom opening of the protective shell 1 are fixedly connected to a circular shell 8, a connecting frame 15 is fixedly connected to the inner wall of the protective shell 1, a dual-axis motor 14 is fixedly connected to the bottom of the connecting frame 15, an upper output shaft of the dual-axis motor 14 passes through the connecting frame 15 and extends to the top of the connecting frame 15, and a connecting rod 11 is fixedly sleeved on the upper output shaft, and two L-shaped scrapers 10 are fixedly connected to the lower output shaft of the dual-axis motor 14 and the outer wall of the connecting rod 11 , a plurality of second air vents 9 are annularly provided on the two circular shells 8, and the bottom of the L-shaped scraper 10 is tightly fitted with the second air vents 9, two groups of first air vents 2 are arranged in an annular array on the outer wall of the protective shell 1, and the side inner wall of the L-shaped scraper 10 is tightly fitted with the first air vents 2, two fan bodies 18 are fixedly sleeved on the outer wall of the connecting rod 11, and a plurality of fan blades 12 are annularly arranged on the outer walls of the two fan bodies 18, two connecting plates 4 are fixedly connected to the outer wall of the protective shell 1, and the bottoms of the two connecting plates 4 are fixedly connected to the same base 5.

[0023] In this embodiment, shock-absorbing pads 6 are fixedly connected to the top and bottom corners of the base 5, and circular holes 7 are opened through the multiple bases 5, and the circular holes 7 pass through the bases 5. Screws can be inserted into the multiple circular holes 7 opened on the bases 5 to connect and fix them to the inner wall of the chassis, and the multiple shock-absorbing pads 6 fit the inner wall of the chassis to reduce vibration. The power cord can pass through the wire hole 3 to connect to the dual-axis motor 14 for power supply. When the dual-axis motor 14 is started, it can respectively drive the connecting rod 11 and the lower output shaft to rotate. When the connecting rod 11 and the lower output shaft rotate, they will drive the upper and lower L-shaped scrapers 10 to rotate. After the L-shaped scraper 10 rotates, it will produce friction with the surface of the circular shell 8 and the outer wall of the protective shell 1, thereby scraping off the accumulated dust.

[0024] In this embodiment, a rubber ring 17 is sleeved on the outer wall of the upper output shaft of the dual-axis motor 14 , and the outer wall of the rubber ring 17 fits with the inner wall of the connecting frame 15 .

[0025] In this embodiment, connecting holes 16 are formed through the two circular shells 8 , the connecting rod 11 passes through the upper connecting hole 16 , and the lower output shaft of the dual-axis motor 14 passes through the lower connecting hole 16 .

[0026] In this embodiment, a same circular ring 13 is fixedly connected to the outer walls of the plurality of fan blades 12 , and the outer walls of the upper and lower plurality of fan blades 12 are both provided with circular rings 13 .

[0027] In this embodiment, the connecting frame 15 is cross-shaped, and a wire-passing hole 3 is formed through the outer wall of the protective shell 1 , and the wire-passing hole 3 extends through to the bottom of the connecting frame 15 .

[0028] In this embodiment, the dual-axis motor 14 is located below the fan body 18, and the protective shell 1 and the circular shell 8 are both made of anti-static materials. When the fan body 18 rotates, it can drive the multiple blades 12 and the circular ring 13 to rotate for heat dissipation. The multiple circular rings 13 are connected by the blades 12, so that the wind direction can be more fixed and not easy to diffuse, and the connection between the multiple blades 12 is strengthened. The connecting frame 15 adopts a cross-shaped design for better ventilation. The multiple second air holes 9 and the first air holes 2 can allow air circulation to assist in heat dissipation. The protective shell 1 and the circular shell 8 are both made of anti-static materials and are less likely to absorb dust accumulation.

[0029] The working principle of the utility model is as follows: screws can be inserted into the multiple circular holes 7 opened on the base 5 to connect and fix with the inner wall of the chassis, and multiple shock-absorbing pads 6 can fit with the inner wall of the chassis to reduce vibration, and the power line can pass through the wire hole 3 to connect with the double-axis motor 14 for power supply. When the double-axis motor 14 is started, it can respectively drive the connecting rod 11 and the lower output shaft to rotate. When the connecting rod 11 and the lower output shaft rotate, they will drive the upper and lower multiple L-shaped scrapers 10 to rotate. After the L-shaped scraper 10 rotates, it will generate friction with the surface of the circular shell 8 and the outer wall of the protective shell 1, so as to scrape off the accumulated dust, and when the connecting rod 11 rotates, it can drive two fans The fan body 18 rotates at the same time. When the fan body 18 rotates, it can drive multiple fan blades 12 and the ring 13 to rotate for heat dissipation. Multiple rings 13 are connected by fan blades 12, which can make the wind direction more fixed and not easy to diffuse, and also strengthen the connection between the multiple fan blades 12. The connecting frame 15 adopts a cross-shaped design for better ventilation. Multiple second air holes 9 and the first air holes 2 can allow air circulation to assist in heat dissipation. The protective shell 1 and the circular shell 8 are made of anti-static materials and are less likely to absorb dust accumulation. A rubber ring 17 is mounted on the output shaft above the dual-axis motor 14 to reduce friction with the inner wall of the connecting frame 15, thereby increasing service life.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A computer cooling fan with dustproof effect, comprising a protective shell (1), characterized in that: The top opening and the bottom opening of the protective shell (1) are both fixedly connected to a circular shell (8); a connecting frame (15) is fixedly connected to the inner wall of the protective shell (1); a dual-axis motor (14) is fixedly connected to the bottom of the connecting frame (15); an upper output shaft of the dual-axis motor (14) passes through the connecting frame (15) and extends to the top of the connecting frame (15); a connecting rod (11) is fixedly sleeved on the upper output shaft; two L-shaped scrapers (10) are fixedly connected to the outer wall of the lower output shaft of the dual-axis motor (14) and the connecting rod (11); and multiple circular shells (8) are provided on each of the two circular shells (8) to form a plurality of circular scrapers. The protective shell (1) is provided with two groups of first vent holes (2) in an annular array on the outer wall of the protective shell (1), and the side inner wall of the L-shaped scraper (10) is in close contact with the first vent holes (2). Two fan bodies (18) are fixedly sleeved on the outer wall of the connecting rod (11), and a plurality of fan blades (12) are arranged in an annular pattern on the outer walls of the two fan bodies (18). Two connecting plates (4) are fixedly connected to the outer wall of the protective shell (1), and the bottoms of the two connecting plates (4) are fixedly connected to the same base (5).

2. A computer cooling fan with dustproof effect according to claim 1, characterized in that: Shock-absorbing pads (6) are fixedly connected to the top and four corners of the bottom of the base (5), and a plurality of bases (5) are provided with circular holes (7) extending therethrough, and the circular holes (7) pass through the bases (5).

3. The computer cooling fan with dustproof effect according to claim 1, characterized in that: A rubber ring (17) is sleeved on the outer wall of the upper output shaft of the dual-shaft motor (14), and the outer wall of the rubber ring (17) fits the inner wall of the connecting frame (15).

4. The computer cooling fan with dust-proof effect according to claim 1, characterized in that: The two circular shells (8) are both provided with connecting holes (16), the connecting rod (11) passes through the upper connecting hole (16), and the lower output shaft of the dual-axis motor (14) passes through the lower connecting hole (16).

5. The computer cooling fan with dust-proof effect according to claim 1, characterized in that: The same circular ring (13) is fixedly connected to the outer walls of the plurality of fan blades (12), and the outer walls of the upper and lower plurality of fan blades (12) are each provided with a circular ring (13).

6. The computer cooling fan with dustproof effect according to claim 1, characterized in that: The connecting frame (15) is cross-shaped, and a wire hole (3) is provided through the outer wall of the protective shell (1), and the wire hole (3) extends through to the bottom of the connecting frame (15).

7. The computer cooling fan with dust-proof effect according to claim 1, characterized in that: The dual-axis motor (14) is located below the fan body (18), and the protective shell (1) and the circular shell (8) are both made of antistatic material.

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