Computer cooling fan

Abstract

The utility model relates to a computer cooling fan, which belongs to the technical field of computer cooling fans and comprises a shell, and a mounting frame is detachably connected in the shell. According to the computer cooling fan, when the motor drives the transmission shaft to rotate and the cooling fan blades blow air, air penetrates through the filter screen plate from the right side through the noise reduction plate to cool the interior of a computer, and the noise reduction plate can reduce noise of the air in the circulation process of the air; the transmission shaft is lubricated in the lubricating oil groove in the noise reduction cylinder through the balls, it is guaranteed that the friction force of the transmission shaft is reduced to the minimum in the rotating process, lubricating oil is injected through the sealing plug and the oil guide hole, and it is guaranteed that the oil inlet and outlet amount can be controlled by a user; vibration generated by the transmission shaft and the noise reduction cylinder in the rotating process can be reduced through dual use of the spring shock absorbers and the rubber sleeves, so that the effect of all-around noise reduction is achieved, and the service life of the device is prolonged.

Description

Technical Field

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

[0002] Computer cooling fans are tools used to dissipate heat from computers, and are usually provided for use with radiators and chassis. Computer fans are divided into chassis fans and CPU fans. Chassis fans are installed on computer chassis to dissipate heat for the entire internal space of the computer chassis, while CPU fans are mainly installed on CPU processors to dissipate heat from the CPU. Computer cooling fans can quickly dissipate heat from computers at work, thereby ensuring the stability of their working performance. As an important component of computer cooling, they have a very wide range of applications.

[0003] The computer cooling fan in the prior art has a poor noise reduction effect, resulting in the cooling fan generating a large noise during rotation, which affects people's working environment on the one hand, and reduces the practicality of the device on the other hand. Moreover, when the rotating shaft of the cooling fan is used for a long time, dry friction is prone to occur due to internal dryness, which further increases the noise generation. Therefore, a computer cooling fan is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a noise reduction structure for a computer cooling fan, which has the advantages of being able to add lubricating oil to the cooling fan during rotation, reducing dry friction during rotation, and increasing the service life of the device. It solves the problem that the rotating shaft of the cooling fan is prone to dry friction due to internal dryness when used for a long time, further increasing the generation of noise.

[0005] To achieve the above object, the utility model provides the following technical solution: a computer cooling fan, comprising a housing, a mounting frame detachably connected to the interior of the housing, and a noise reduction component is arranged inside the mounting frame;

[0006] The noise reduction assembly includes a fixing plate, the interior of the fixing plate is fixedly connected to the right outer surface of the mounting frame, the interior of the fixing plate is fixedly connected with a noise reduction cylinder, the right side of the fixing plate is fixedly connected to a motor, one end of the motor output shaft is fixedly connected to a transmission shaft, a plurality of ball bearings are rollingly connected between the transmission shaft and the noise reduction cylinder, an oil filling box is fixedly connected to the front of the noise reduction cylinder, a screw is threadedly connected to the interior of the oil filling box, a sleeve is threadedly connected to the outer surface of the screw, a sealing plug is fixedly connected to the bottom of the sleeve, four mounting plates are fixedly connected to the inner wall of the mounting frame, spring shock absorbers are fixedly connected to the opposite sides of the four mounting plates, two mounting rods are fixedly connected to the inner wall of the fixing plate, and the same rubber sleeve is fixedly connected to the opposite sides of the two mounting rods.

[0007] Furthermore, the outer shell is in the shape of a square shell, and two positioning plates are fixedly connected inside the outer shell, and a filter plate is movably connected to the opposite side of the two positioning plates, and a noise reduction plate is movably connected to the opposite side of the two positioning plates.

[0008] Furthermore, two fixing blocks are fixedly connected to the left outer surface of the installation frame, and the outer surfaces of the two fixing blocks are fixedly connected to fixing columns, and the two fixing columns are snap-fitted to the inside of the noise reduction plate, and the noise reduction plate is snap-fitted to the filter plate.

[0009] Furthermore, two screws are inserted into the interior of the shell, and the installation frame is detachably connected to the shell via the two screws.

[0010] Furthermore, a plurality of lubricating oil grooves are provided inside the noise reduction cylinder, and a plurality of the balls are located inside the noise reduction cylinder through the plurality of lubricating oil grooves. An oil guide hole is provided inside the oil filling box, and the oil guide hole extends into the interior of the noise reduction cylinder at a forty-five degree angle.

[0011] Furthermore, a conical oil storage cavity is provided inside the oil filling box, and a conical rubber pad is fixedly connected to the bottom of the sealing plug, and the conical surface angle of the conical rubber pad is matched with the conical surface angle of the conical oil storage cavity.

[0012] Furthermore, two sliders are fixedly connected to the outer surface of the sleeve, the two sliders are slidably connected to the inner wall of the oil filling box, and the opposite sides of the four spring shock absorbers are fixedly connected to the outer surface of the noise reduction cylinder.

[0013] Furthermore, the two mounting rods are symmetrically distributed on the outer surface of the noise reduction cylinder, and the rubber sleeve is sleeved on the outer surface of the noise reduction cylinder.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. For the computer cooling fan, when the motor drives the transmission shaft to rotate and the cooling fan blades blow air, the air passes through the noise reduction plate from the right side and the filter plate to dissipate heat to the inside of the computer, and the noise reduction plate can reduce the noise of the air during circulation, and the transmission shaft is lubricated by the ball in the lubricating oil groove inside the noise reduction cylinder to ensure that the friction of the transmission shaft is reduced to a minimum during the rotation process, and the lubricating oil is injected through the sealing plug and the oil guide hole to ensure that the amount of oil in and out can be controlled by the user himself, and the vibration of the transmission shaft and the noise reduction cylinder during the rotation process can be reduced through the dual use of the spring shock absorber and the rubber sleeve, thereby achieving an all-round noise reduction effect and improving the service life of the device.

[0016] 2. The computer cooling fan is provided with a screw and a sleeve so that when the screw drives the sleeve to rotate, the sliders on the left and right sides of the sleeve cooperate with the oil filling box to ensure that the sealing plug is more convenient and quick when adjusting the oil amount; the oil guide hole is designed to be forty-five degrees so that the lubricating oil can be always filled into the lubricating oil groove, ensuring better lubrication effect during the rolling process of the ball bearing and reducing the occurrence of dry friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a partial left sectional view of the structure of the utility model;

[0019] Figure 3 This is a left side view of the installation frame of the utility model structure;

[0020] Figure 4 It is a three-dimensional diagram of the structural positioning plate of the utility model.

[0021] In the figure: 1. outer shell; 2. positioning plate; 3. filter plate; 4. noise reduction plate; 5. mounting frame; 6. screws; 7. fixing block; 8. fixing column; 9. fixing plate; 10. noise reduction cylinder; 11. motor; 12. transmission shaft; 13. ball bearing; 14. lubricating oil groove; 15. oil filling box; 16. oil guide hole; 17. screw; 18. sleeve; 19. slider; 20. sealing plug; 21. mounting plate; 22. spring shock absorber; 23. mounting rod; 24. rubber sleeve. 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 1-4 A computer cooling fan in this embodiment includes a shell 1, which is in the shape of a square shell. Two positioning plates 2 are fixedly connected to the inside of the shell 1, and a filter plate 3 is movably connected to the opposite side of the two positioning plates 2. A noise reduction plate 4 is movably connected to the opposite side of the two positioning plates 2. An installation frame 5 is detachably connected to the inside of the shell 1, and two screws 6 are penetrated inside the shell 1. The installation frame 5 is detachably connected to the shell 1 via the two screws 6.

[0024] Two fixing blocks 7 are fixedly connected to the left outer surface of the mounting frame 5 , and fixing columns 8 are fixedly connected to the outer surfaces of the two fixing blocks 7 . The two fixing columns 8 are snap-fitted to the inside of the noise reduction plate 4 , and the noise reduction plate 4 is snap-fitted to the filter plate 3 .

[0025] A noise reduction component is arranged inside the mounting frame 5; the noise reduction component comprises a fixing plate 9, the inside of the fixing plate 9 is fixedly connected to the right outer surface of the mounting frame 5, a noise reduction tube 10 is fixedly connected inside the fixing plate 9, a motor 11 is fixedly connected to the right side of the fixing plate 9, a transmission shaft 12 is fixedly connected to one end of the output shaft of the motor 11, a heat dissipation fan blade is fixedly connected to the outer surface of the transmission shaft 12, a plurality of balls 13 are rollingly connected between the transmission shaft 12 and the noise reduction tube 10, a plurality of lubricating oil grooves 14 are opened inside the noise reduction tube 10, and the plurality of balls 13 are all located inside the noise reduction tube 10 through the plurality of lubricating oil grooves 14.

[0026] An oil filling box 15 is fixedly connected to the front side of the noise reduction tube 10 . An oil guide hole 16 is provided inside the oil filling box 15 . The oil guide hole 16 extends into the interior of the noise reduction tube 10 at a 45-degree angle.

[0027] The inner thread of the oil filling box 15 is connected to a screw 17, the outer surface of the screw 17 is connected to a sleeve 18 through a thread, the outer surface of the sleeve 18 is fixedly connected to two sliders 19, the two sliders 19 are slidably connected to the inner wall of the oil filling box 15, the bottom of the sleeve 18 is fixedly connected to a sealing plug 20, the interior of the oil filling box 15 is provided with a conical oil storage cavity, the bottom of the sealing plug 20 is fixedly connected to a conical rubber pad, and the conical surface angle of the conical rubber pad is adapted to the conical surface angle of the conical oil storage cavity.

[0028] Four mounting plates 21 are fixedly connected to the inner wall of the mounting frame 5 , spring shock absorbers 22 are fixedly connected to opposite sides of the four mounting plates 21 , and opposite sides of the four spring shock absorbers 22 are fixedly connected to the outer surface of the noise reduction tube 10 .

[0029] Two mounting rods 23 are fixedly connected to the inner wall of the fixing plate 9 , and the two mounting rods 23 are symmetrically distributed on the outer surface of the noise reduction cylinder 10 . The same rubber sleeve 24 is fixedly connected to the opposite side of the two mounting rods 23 , and the rubber sleeve 24 is sleeved on the outer surface of the noise reduction cylinder 10 .

[0030] In this embodiment, by setting the screw 17 and the sleeve 18, when the screw 17 drives the sleeve 18 to rotate, the sliders 19 on the left and right sides of the sleeve 18 cooperate with the oil filling box 15 to ensure that the sealing plug 20 is more convenient and quick when adjusting the oil amount.

[0031] In this embodiment, the oil guide hole 16 is designed to be 45 degrees so that the lubricating oil can be always injected into the lubricating oil groove 14, thereby ensuring better lubrication effect of the ball 13 during rolling and reducing dry friction.

[0032] The working principle of the above embodiment is:

[0033] The computer cooling fan, when the motor 11 drives the transmission shaft 12 to rotate and the cooling fan blades blow air, the air passes through the noise reduction plate 4 from the right side through the filter plate 3 to dissipate heat to the inside of the computer, and the noise reduction plate 4 can reduce the noise of the air during the circulation process, and the transmission shaft 12 is lubricated in the lubricating oil groove 14 inside the noise reduction cylinder 10 through the ball 13 to ensure that the friction of the transmission shaft 12 is reduced to a minimum during the rotation process, and the lubricating oil is injected through the sealing plug 20 and the oil guide hole 16 to ensure that the amount of oil in and out can be controlled by the user himself, and the vibration of the transmission shaft 12 and the noise reduction cylinder 10 during the rotation process can be reduced through the dual use of the spring shock absorber 22 and the rubber sleeve 24, thereby achieving an all-round noise reduction effect and improving the service life of the device.

[0034] It should be noted that the standard parts used in the application can be purchased from the market, special-shaped parts can be customized according to the description in the specification and drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art, and conventional means. Machinery, parts and equipment all adopt conventional models in the prior art; plus the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A computer cooling fan, comprising a housing (1), characterized in that: The interior of the housing (1) is detachably connected to a mounting frame (5), and a noise reduction component is arranged inside the mounting frame (5); The noise reduction component comprises a fixing plate (9), the interior of the fixing plate (9) is fixedly connected to the right outer surface of the mounting frame (5), the interior of the fixing plate (9) is fixedly connected to a noise reduction cylinder (10), the right side of the fixing plate (9) is fixedly connected to a motor (11), one end of the output shaft of the motor (11) is fixedly connected to a transmission shaft (12), a plurality of balls (13) are rollingly connected between the transmission shaft (12) and the noise reduction cylinder (10), an oil filling box (15) is fixedly connected to the front side of the noise reduction cylinder (10), and the oil filling box (15) The inner surface of the screw rod (17) is connected to a screw rod (17) through a thread, the outer surface of the screw rod (17) is connected to a sleeve (18) through a thread, the bottom of the sleeve (18) is fixedly connected to a sealing plug (20), the inner wall of the installation frame (5) is fixedly connected to four installation plates (21), the opposite sides of the four installation plates (21) are fixedly connected to spring shock absorbers (22), the inner wall of the fixed plate (9) is fixedly connected to two installation rods (23), and the opposite sides of the two installation rods (23) are fixedly connected to the same rubber sleeve (24).

2. A computer cooling fan according to claim 1, characterized in that: The outer shell (1) is in the shape of a square shell, and two positioning plates (2) are fixedly connected inside the outer shell (1), and a filter plate (3) is movably connected to the opposite side of the two positioning plates (2), and a noise reduction plate (4) is movably connected to the opposite side of the two positioning plates (2).

3. A computer cooling fan according to claim 2, characterized in that: Two fixing blocks (7) are fixedly connected to the left outer surface of the installation frame (5), and the outer surfaces of the two fixing blocks (7) are fixedly connected to fixing columns (8). The two fixing columns (8) are clamped to the inside of the noise reduction plate (4), and the noise reduction plate (4) is clamped to the filter plate (3).

4. A computer cooling fan according to claim 1, characterized in that: Two screws (6) are inserted into the interior of the outer shell (1), and the installation frame (5) is detachably connected to the outer shell (1) via the two screws (6).

5. The computer cooling fan according to claim 1, characterized in that: A plurality of lubricating oil grooves (14) are provided inside the noise reduction cylinder (10), and a plurality of the balls (13) are located inside the noise reduction cylinder (10) through the plurality of lubricating oil grooves (14). An oil guide hole (16) is provided inside the oil filling box (15), and the oil guide hole (16) extends to the inside of the noise reduction cylinder (10) at a 45-degree angle.

6. A computer cooling fan according to claim 1, characterized in that: The oil filling box (15) has a conical oil storage cavity inside, and a conical rubber pad is fixedly connected to the bottom of the sealing plug (20), wherein the conical surface angle of the conical rubber pad matches the conical surface angle of the conical oil storage cavity.

7. A computer cooling fan according to claim 1, characterized in that: Two sliders (19) are fixedly connected to the outer surface of the sleeve (18), and the two sliders (19) are slidably connected to the inner wall of the oil filling box (15). The opposite sides of the four spring shock absorbers (22) are fixedly connected to the outer surface of the noise reduction cylinder (10).

8. The computer cooling fan according to claim 1, characterized in that: The two mounting rods (23) are symmetrically distributed on the outer surface of the noise reduction cylinder (10), and the rubber sleeve (24) is sleeved on the outer surface of the noise reduction cylinder (10).

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