Cooling fan with dustproof structure

Abstract

The utility model discloses a cooling fan with a dustproof structure. The cooling fan comprises a mounting plate, a dustproof assembly and a cooling assembly. The number of the mounting plates is two, the two mounting plates are fixedly connected through four first mounting columns, and a circular ring is arranged in the middle of the position between the two mounting plates; the dustproof assembly is arranged at the upper end of the mounting plate on the upper side, the dustproof assembly and the mounting plate are mounted in a matched mode, and a dustproof net is arranged in the dustproof assembly; the heat dissipation assembly is arranged in the circular ring; the cooling fan with the dustproof structure further comprises installation holes, the installation holes are formed in the four corners of the upper surface of the upper side installation plate respectively, and the dustproof assembly comprises a screw hole, a circular notch, a pin shaft, a circular boss, an upper pressing iron wire, an upper pressing piece, a hexagon bolt and a connecting plywood. The dustproof net can effectively filter dust in the air, and the influence on heat dissipation is small.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation fan with a dustproof structure. Background Art

[0002] Cooling fans have a wide range of uses, but because they are installed inside the machine and cannot be found, they are not very common. Nowadays, all electronic products need cooling fans to help them dissipate heat and cool down. Among them, the cooling fan used in computer chassis is the most common cooling fan in our lives. However, after the chassis is used for a long time, there is a lot of dust inside the chassis, which affects the heat dissipation.

[0003] Existing chassis dust prevention technologies include directly installing it to the chassis cooling fan through screws, and some dust prevention methods use a larger area of ​​dustproof net to stick to the air circulation air flow outlet of the chassis.

[0004] There are some problems. For example, after a cooling fan fixed with a dustproof net by screws is used for a long time, the dustproof net becomes very dirty. It becomes more troublesome to replace the dust on the dustproof net of the cooling fan. Using a dustproof net with a larger area will affect heat dissipation. For this reason, we propose a cooling fan with a dustproof structure. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a heat dissipation fan with a dustproof structure, which is convenient for disassembly and assembly and has a good dustproof effect, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation fan with a dustproof structure, comprising a mounting plate, a dustproof component and a heat dissipation component;

[0007] Mounting plates: There are two mounting plates, which are fixedly connected by four first mounting columns, and a circular ring is provided in the middle between the two mounting plates;

[0008] Dustproof component: It is arranged at the upper end of the upper mounting plate. The dustproof component is installed in coordination with the mounting plate. A dustproof net is arranged inside the dustproof component.

[0009] Heat dissipation component: it is arranged inside the circular ring;

[0010] Among them: it also includes mounting holes, which are respectively opened at the four corners of the upper surface of the upper mounting plate. The disassembly, assembly and replacement operation is simple, the dustproof net can effectively filter dust in the air, and has little effect on heat dissipation.

[0011] Furthermore, the dustproof component includes a screw hole, a circular recess, a pin shaft, a circular boss, an upper holding wire, an upper pressing plate, a hexagonal bolt and a connecting plate. The upper pressing plate is rotatably connected to the rear end of the upper surface of the upper mounting plate by the pin shaft. The upper surface of the upper mounting plate is provided with a circular recess. The front side of the upper pressing plate is fixedly connected with a circular boss. A dustproof net is clamped between the circular boss and the circular recess. The front surface of the upper pressing plate is provided with a circular air inlet. The interior of the circular air inlet is fixedly connected with an upper holding wire. The upper surface of the upper pressing plate is fixedly connected with a connecting plate. Circular holes are respectively provided on the left and right sides of the upper surface of the connecting plate. Hexagonal bolts are inserted into the circular holes. Screw holes are provided on the left and right sides of the front side of the upper mounting plate. The screw holes are threadedly connected to the threaded columns of the hexagonal bolts to realize the function of snap connection.

[0012] Furthermore, the dustproof component also includes an avoidance opening, which is respectively opened at the four corners of the rear side of the upper pressing plate, and the avoidance opening corresponds to the upper and lower positions of the mounting hole to avoid the problem of conflict between the upper pressing plate and the mounting hole.

[0013] Furthermore, it also includes an upper magnetic attraction sheet, which is fixedly connected to the center of the upper holding wire to achieve the function of magnetic attraction and clamping.

[0014] Furthermore, the heat dissipation assembly includes an upper limit wire, a second mounting column, and a lower limit wire. The upper limit wire is fixedly connected to the upper side of the inner wall of the circular ring, the lower side of the inner wall of the circular ring is fixedly connected to the lower limit wire, and the middle part of the lower limit wire is fixedly connected to the second mounting column, thereby realizing the function of fixing the heat dissipation assembly.

[0015] Furthermore, the heat dissipation assembly also includes fan blades, a motor and a fan blade mounting shaft. The motor is fixedly connected to the inside of the second mounting column, the output shaft of the motor is fixedly connected to the fan blade mounting shaft, the outer arc surface of the fan blade mounting shaft is fixedly connected to evenly distributed fan blades, and the input end of the motor is electrically connected to the output end of the external control switch to achieve the heat dissipation function.

[0016] Furthermore, it also includes a lower magnetic sheet, which is fixedly connected to the center of the upper limit wire to achieve the function of clamping the dustproof net up and down.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the heat dissipation fan with a dustproof structure has the following advantages:

[0018] Place the dust screen between the circular boss and the circular recess, and then close the upper pressing piece through the pin shaft. At this time, the circular boss and the circular recess press the dust screen, and the upper magnetic sheet and the lower magnetic sheet attract each other, and the upper pressing wire and the upper limit wire press to fully flatten the dust screen to complete the initial buckle. The connecting plate contacts the front side of the upper mounting plate, and then, manually tighten the hexagonal bolts, screw the two hexagonal bolts into the screw holes through the round holes on the connecting plate to complete the buckle. When the cooling fan is used for a long time and the dust screen needs to be replaced, you only need to unscrew the two hexagonal bolts, open the upper pressing piece, and replace the dust screen. The disassembly and replacement operation is simple, and the dust screen can effectively filter dust in the air with little effect on heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] In the figure: 1 mounting plate, 2 first mounting column, 3 dustproof assembly, 31 screw hole, 32 circular recess, 33 pin shaft, 34 circular boss, 35 upper pressure holding wire, 36 upper pressure plate, 37 avoidance opening, 38 hexagonal bolt, 39 connecting plate, 4 dustproof net, 5 mounting hole, 6 circular ring, 7 heat dissipation assembly, 71 fan blade, 72 upper limit wire, 73 second mounting column, 74 lower limit wire, 75 motor, 76 fan blade mounting shaft, 8 upper magnetic sheet, 9 lower magnetic sheet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-2 , this embodiment provides a technical solution: a heat dissipation fan with a dustproof structure, comprising a mounting plate 1, a dustproof component 3 and a heat dissipation component 7;

[0024] Mounting plates 1: There are two mounting plates 1, which are fixedly connected by four first mounting columns 2, and a circular ring 6 is provided in the middle between the two mounting plates 1;

[0025] Dustproof assembly 3: It is arranged at the upper end of the upper mounting plate 1, and the dustproof assembly 3 is installed in conjunction with the mounting plate 1. A dustproof net 4 is arranged inside the dustproof assembly 3. The dustproof assembly 3 includes a screw hole 31, a circular notch 32, a pin shaft 33, a circular boss 34, an upper pressure holding wire 35, an upper pressure plate 36, a hexagonal bolt 38 and a connecting plate 39. The upper pressure plate 36 is rotatably connected to the rear end of the upper surface of the upper mounting plate 1 through the pin shaft 33. The upper surface of the upper mounting plate 1 is provided with a The circular notch 32, the front side of the upper pressing piece 36 is fixedly connected with a circular boss 34, and a dust screen 4 is clamped between the circular boss 34 and the circular notch 32. The front surface of the upper pressing piece 36 is provided with a circular air inlet, and the inner part of the circular air inlet is fixedly connected with an upper holding wire 35. The upper surface of the upper pressing piece 36 is fixedly connected with a connecting plate 39, and the upper surface of the connecting plate 39 is provided with circular holes on the left and right sides of the upper surface, and hexagonal bolts 38 are inserted in the circular holes. Screw holes 31 are provided on the left and right sides of the front side of the upper mounting plate 1. The dustproof component 3 also includes avoidance openings 37, which are respectively provided at the four corners of the rear side of the upper pressing piece 36, and the avoidance openings 37 correspond to the upper and lower positions of the mounting holes 5. It also includes an upper magnetic suction piece 8, which is fixedly connected to the center of the upper holding wire 35. The dust screen 4 is placed between the circular boss 34 and the circular notch 32, and then the upper pressing piece 36 is closed by the pin shaft 33. At this time, the circular boss 34 and the circular notch 3 2 Press and hold the dust screen 4, the upper holding wire 35 and the upper limit wire 72 press and hold, fully flatten the dust screen 4, complete the initial buckling, connect the clamping plate 39 to contact the front side of the upper mounting plate 1, and then manually screw the hexagonal bolts 38, screw the threaded columns of the two hexagonal bolts 38 into the screw holes 31 to complete the buckling. When the cooling fan is used for a long time and the dust screen 4 needs to be replaced, only the two hexagonal bolts 38 need to be unscrewed, the upper pressing plate 36 needs to be opened, and the dust screen 4 can be replaced;

[0026] Heat dissipation assembly 7: It is arranged inside the circular ring 6, and the heat dissipation assembly 7 includes an upper limit wire 72, a second mounting column 73, and a lower limit wire 74. The upper limit wire 72 is fixedly connected to the upper side of the inner wall of the circular ring 6, and the lower side of the inner wall of the circular ring 6 is fixedly connected to the lower limit wire 74. The middle part of the lower limit wire 74 is fixedly connected to the second mounting column 73. The heat dissipation assembly 7 also includes a fan blade 71, a motor 75 and a fan blade mounting shaft 76. The motor 75 is fixedly connected to the inside of the second mounting column 73, and the output shaft of the motor 75 is fixedly connected to the fan blade mounting shaft 76. The fan blade mounting shaft 71 is fixedly connected to the inner wall of the circular ring 6. The outer arc surface of 6 is fixedly connected with evenly distributed fan blades 71, the input end of the motor 75 is electrically connected to the output end of the external control switch, and also includes a lower magnetic suction sheet 9, which is fixedly connected to the center of the upper limit wire 72, and the upper magnetic suction sheet 8 and the lower magnetic suction sheet 9 attract each other to better clamp the dustproof net 4. After the motor 75 is powered on, it starts to run, and the output shaft of the motor 75 rotates to drive the fan blade installation shaft 76 to rotate, thereby driving the fan blades 71 to run. The moving fan blades 71 run continuously to discharge external air from the circular air inlet to complete heat dissipation. During this period, the dustproof net 4 filters dust in the air;

[0027] The mounting plate 1 further comprises mounting holes 5 which are respectively formed at four corners of the upper surface of the mounting plate 1 on the upper side. The cooling fan is installed at a designated work station through the mounting holes 5 .

[0028] The working principle of a cooling fan with a dustproof structure provided by the utility model is as follows: the dustproof net 4 is placed between the circular boss 34 and the circular recess 32, and then the upper pressing plate 36 is closed by the pin shaft 33. At this time, the circular boss 34 and the circular recess 32 press the dustproof net 4, and the upper magnetic suction plate 8 and the lower magnetic suction plate 9 attract each other, and the upper pressing wire 35 and the upper limit wire 72 press and hold, and the dustproof net 4 is fully flattened to complete the preliminary buckling, and the connecting plate 39 contacts the front side of the upper mounting plate 1, and then the hexagonal bolts 38 are manually screwed, and the threaded columns of the two hexagonal bolts 38 are passed through the connecting plate 39. The circular hole on the upper side is screwed into the screw hole 31 to complete the buckling. When the cooling fan is used for a long time and the dust screen 4 needs to be replaced, only the two hexagonal bolts 38 need to be unscrewed, the upper pressing plate 36 needs to be opened, and the dust screen 4 needs to be replaced. The cooling fan is installed at the designated work station through the mounting hole 5. Through the regulation of the external control switch, the motor 75 starts to operate after being energized. The output shaft of the motor 75 rotates to drive the fan blade mounting shaft 76 to rotate, thereby driving the fan blades 71 to operate. The moving fan blades 71 operate to continuously discharge external air from the circular air inlet to complete the heat dissipation. During this period, the dust screen 4 filters the dust in the air to achieve the dustproof function.

[0029] It is worth noting that the motor 75 disclosed in the above embodiment can use a 5V or 12V motor according to the actual situation. It is recommended to use a 28byj48 stepper motor. The external control switch is provided with a control button corresponding to the motor 75 and used to control its switch.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat dissipation fan with a dustproof structure, characterized in that: It comprises a mounting plate (1), a dustproof component (3) and a heat dissipation component (7); Mounting plates (1): there are two mounting plates (1), the two mounting plates (1) are fixedly connected via four first mounting columns (2), and a circular ring (6) is provided in the middle between the two mounting plates (1); A dustproof component (3): the dustproof component (3) is arranged at the upper end of the upper mounting plate (1), the dustproof component (3) is installed in cooperation with the mounting plate (1), and a dustproof net (4) is arranged inside the dustproof component (3); Heat dissipation component (7): arranged inside the circular ring (6); Wherein: it also includes mounting holes (5), and the mounting holes (5) are respectively opened at four corners of the upper surface of the upper mounting plate (1).

2. The heat dissipation fan with a dustproof structure according to claim 1, characterized in that: The dustproof assembly (3) comprises a screw hole (31), a circular recess (32), a pin shaft (33), a circular boss (34), an upper pressure holding wire (35), an upper pressure plate (36), a hexagonal bolt (38) and a connecting plate (39), wherein the upper pressure plate (36) is rotatably connected to the rear end of the upper surface of the upper mounting plate (1) through the pin shaft (33), the upper surface of the upper mounting plate (1) is provided with a circular recess (32), and the front side of the upper pressure plate (36) is fixedly connected to the circular boss (34). ), a dust screen (4) is clamped between the circular boss (34) and the circular recess (32), a circular air inlet is provided on the front surface of the upper pressing plate (36), an upper pressing wire (35) is fixedly connected inside the circular air inlet, a connecting plate (39) is fixedly connected to the upper surface of the upper pressing plate (36), circular holes are respectively provided on the left and right sides of the upper surface of the connecting plate (39), hexagonal bolts (38) are inserted into the circular holes, and screw holes (31) are provided on the left and right sides of the front side surface of the upper mounting plate (1).

3. The heat dissipation fan with a dustproof structure according to claim 2, characterized in that: The dustproof component (3) further comprises an escape opening (37), wherein the escape opening (37) is respectively arranged at four corners of the rear side surface of the upper pressing plate (36), and the escape opening (37) corresponds to the upper and lower positions of the mounting hole (5).

4. The heat dissipation fan with a dustproof structure according to claim 2, characterized in that: It also includes an upper magnetic attraction sheet (8), which is fixedly connected to the center of the upper pressure-holding iron wire (35).

5. The heat dissipation fan with a dustproof structure according to claim 4, characterized in that: The heat dissipation assembly (7) comprises an upper limit wire (72), a second mounting post (73), and a lower limit wire (74); the upper limit wire (72) is fixedly connected to the upper side of the inner wall of the circular ring (6); the lower limit wire (74) is fixedly connected to the lower side of the inner wall of the circular ring (6); and the middle part of the lower limit wire (74) is fixedly connected to the second mounting post (73).

6. The heat dissipation fan with a dustproof structure according to claim 5, characterized in that: The heat dissipation assembly (7) further comprises fan blades (71), a motor (75) and a fan blade mounting shaft (76), wherein the motor (75) is fixedly connected to the interior of the second mounting column (73), the output shaft of the motor (75) is fixedly connected to the fan blade mounting shaft (76), the outer arc surface of the fan blade mounting shaft (76) is fixedly connected to evenly distributed fan blades (71), and the input end of the motor (75) is electrically connected to the output end of an external control switch.

7. The heat dissipation fan with a dustproof structure according to claim 6, characterized in that: It also includes a lower magnetic attraction sheet (9), which is fixedly connected to the center of the upper limit iron wire (72).

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