TWM474076U - Fan and its bearing structure - Google Patents

Description

Fan and its bearing structure

The present invention is to provide a bearing structure, especially a fan for an electronic information product and a bearing structure thereof.

The use of electronic information products (such as computers) is becoming more and more popular. Due to the rapid development of electronic information industry technology, the speed of computing and the increase of access capacity have led to the high temperature accompanying the high-speed operation of components in electronic information products. . Take the computer mainframe as an example. The internal central processing unit (CPU) generates a large amount of heat. In addition, when the central processing unit heat is gradually increased, the performance will be reduced, and even the computer will be forced to crash. May cause damage.

Fans have been used to dissipate the heat generated by the operation of electronic components inside electronic information products. The bearing structure of a fan mostly includes a shaft tube, a bearing and a rotating shaft. The bearing is fixed in the shaft tube, and the rotating shaft is rotatably disposed through In the shaft hole of the bearing, the fan blade can be pivoted inside the fan by using the rotating shaft and the bearing, and the bearing can be used to reduce the frictional force when the rotating shaft rotates, so as to reduce the abrasion caused when the rotating shaft rotates, and the rotation of the blade is smooth.

However, the shaft tube of the conventional fan only has the function of a fixed bearing, and the shaft tube and the bearing are mutually abutted, and the function of storing oil cannot be provided. Furthermore, if the lubrication between the bearing and the rotating shaft is insufficient, friction will occur between the bearing and the rotating shaft, noise is likely to occur, and the service life of the bearing and the rotating shaft is reduced.

In summary, the creator feels that the above-mentioned deficiencies can be improved. He has devoted himself to research and cooperates with the application of academics, and finally proposes a design that is reasonable in design and effective in improving the above-mentioned deficiencies.

The technical problem to be solved by the present invention is to provide a fan and a bearing structure thereof. The shaft tube of the present invention has the function of storing oil, and can supply bearings and shaft lubricating oil, can avoid friction between the bearing and the rotating shaft, can reduce noise generation, and prolong The service life of the bearings and shafts.

In order to solve the above technical problem, the present invention provides a fan, comprising: a base; a shaft tube, the shaft tube is disposed on the base, the shaft tube has a bottom wall and a side wall extending upward from the bottom wall Forming an accommodating space between the bottom wall and the side wall, the inner edge of the side wall is recessed to form an oil storage groove, the oil sump is filled with lubricating oil, and a bearing is received in the accommodating space of the shaft tube. The bearing center has a shaft hole, the bearing is provided with an oil guiding passage; a rotating shaft is rotatably disposed in the shaft hole of the bearing, the oil guiding passage is located between the oil reservoir and the rotating shaft; The rotating shaft is fixed to the center of the blade, the inside of the blade is provided with a magnet, and a coil group is disposed outside the shaft tube, and the magnet is located outside the coil group.

In order to solve the above technical problem, the present invention also provides a bearing structure of a fan, comprising: a shaft tube having a bottom wall and a side wall extending upward from the bottom wall, wherein a gap is formed between the bottom wall and the side wall a bearing space, the inner edge of the side wall is recessed to form an oil reservoir, the oil reservoir is filled with lubricating oil; a bearing is received in the receiving space of the shaft tube, the bearing center has a shaft hole, and the bearing is provided with An oil guiding passage; and a rotating shaft rotatably passing through the shaft hole of the bearing, the oil guiding passage being located between the oil reservoir and the rotating shaft.

The present invention has at least the following advantages: the inner edge of the sidewall of the creative shaft tube is provided with an oil storage groove, which can be used for accommodating lubricating oil, so that the shaft tube has the function of storing oil. The creation bearing is provided with an oil guiding passage, and the inside of the oil storage tank The oil can be transported to the shaft hole and the rotating shaft through the oil guiding passage, which can avoid the friction between the bearing and the rotating shaft, can reduce noise generation, and prolong the service life of the bearing and the rotating shaft. The oil guiding passage can also have a venting function to facilitate assembly of the bearing and can be used to discharge high temperatures.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

1‧‧‧Base

2‧‧‧ shaft tube

21‧‧‧ bottom wall

22‧‧‧ side wall

23‧‧‧ accommodating space

24‧‧‧ oil storage tank

25‧‧‧Lubricating oil

3‧‧‧ Bearing

31‧‧‧ shaft hole

32‧‧‧ oil passage

4‧‧‧ shaft

5‧‧‧ fan leaves

6‧‧‧ coil group

7‧‧‧ circuit unit

8‧‧‧ Magnet

9‧‧‧shims

10‧‧‧ cover

Figure 1 is an exploded perspective view of the creation fan.

Figure 2 is a perspective assembled view of the creation fan.

Figure 3 is a cross-sectional view of the creation fan.

Figure 4 is an exploded perspective view of the bearing structure of the present invention.

Referring to FIG. 1 to FIG. 3 , the present invention provides a fan, which is preferably but not limited to a thin fan, including a base 1 , a shaft tube 2 , a bearing 3 , a rotating shaft 4 , a blade 5 and a fan . Coil set 6.

The shape and configuration of the susceptor 1 are not limited and may be varied as needed. The susceptor 1 may be used to support members such as the shaft tube 2, the bearing 3, the rotating shaft 4, the blade 5, and the coil assembly 6.

The shaft tube 2 is disposed on the base 1. The shaft tube 2 is preferably but not limited to a metal piece. Please refer to FIG. 3 and FIG. 4 simultaneously. The shaft tube 2 can be a hollow cylinder, and the shaft tube 2 has a The bottom wall 21 and a side wall 22 extending from the bottom wall 21 and the bottom wall 21 and the side wall 22 form an accommodating space 23. The accommodating space 23 is located inside the shaft tube 2, and the accommodating space 23 can penetrate. To the top of the shaft tube 2. An oil reservoir 24 is formed in the inner edge of the sidewall 22, and the oil reservoir 24 communicates with the accommodating space 23, and the oil reservoir 24 can be used for accommodating the lubricating oil 25. The oil reservoir 24 corresponds to the outer edge of the bearing 3, the reservoir The oil groove 24 may be disposed on the inner edge of the side wall 22. The oil storage groove 24 is preferably provided as one, but may be provided as two or more oil storage grooves and the like which are not limited in shape, as needed.

The bearing 3 can be a hollow cylinder, and the bearing 3 is received in the accommodating space 23 of the shaft tube 2. The bearing 3 can be fixed in the accommodating space 23 by elastic fit or the like. The bearing 3 has a shaft hole 31 in the center thereof, and the shaft hole 31 penetrates to the top end and the bottom end of the bearing 3. The bearing 3 is provided with an oil guiding passage 32, and the oil guiding passage 32 may be provided in one, two or more, etc., and the number thereof is not limited. The oil guiding passage 32 is located between the oil storage tank 24 and the rotating shaft 4, that is, the oil guiding passage 32 can extend to the outer edge and the inner edge of the bearing 3, so that the lubricating oil 25 in the oil storage tank 24 can be transported to the shaft hole through the oil guiding passage 32. 31 and the shaft 4. The shape of the oil guiding passage 32 is not limited. In the present embodiment, the oil guiding passage 32 is substantially C-shaped, and the oil guiding passage 32 extends from the outer edge of the bearing 3 along the top end and the bottom end of the bearing 3 to the inner edge of the bearing 3. In the present embodiment, the oil guiding passage 32 is disposed at the outer edge, the top end and the bottom end of the bearing 3 to maintain the bearing 3 with better strength. The oil guiding passage 32 may also be bored inside the bearing 3, but it is preferable to consider the strength of the bearing 3, and the position, number and size of the oil guiding passage 32 are not affected to affect the strength of the bearing 3.

The rotating shaft 4 is fixed to the center of the blade 5, that is, the top end of the rotating shaft 4 is fixedly coupled to the center of the blade 5. The coil assembly 6 is disposed outside the shaft tube 2, and the coil assembly 6 is electrically connected to a circuit unit 7 to control the operation of the coil assembly 6 by the circuit unit 7. The shaft 4 is rotatably disposed in the shaft hole 31 of the bearing 3, so that the blade 5 can be pivoted on the base 1 by the bearing 3 and the rotating shaft 4. The fan blade 5 is internally provided with an annular magnet 8 which is a permanent magnet. The magnet 8 is located outside the coil assembly 6, and the magnet 8 is adjacent to the coil assembly 6, so that the inner edge of the magnet 8 and the outer edge of the coil assembly 6 Maintain a proper air gap between them.

The bottom of the accommodating space 23 can be further provided with a gasket 9 having better wear resistance so that the bottom end of the shaft 4 can abut against the gasket 9. A cover body 10 is further disposed on the top of the accommodating space 23 for closing the top end of the accommodating space 23 to prevent the lubricating oil 25 in the shaft tube 2 from leaking out, and the wear of the lubricating oil 25 can be reduced.

The shaft tube 2, the bearing 3 and the rotating shaft 4 of the present invention constitute a bearing structure, so that the fan blade 5 can be pivoted inside the fan by using the bearing 3 and the rotating shaft 4, and the bearing 3 can be used to reduce the frictional force when the rotating shaft 4 rotates, so as to reduce the abrasion caused when the rotating shaft 4 rotates, so that the blade 5 can be normally operated.

Furthermore, the inner edge of the side wall 22 of the present invention is provided with an oil reservoir 24 for accommodating the lubricating oil 25, so that the shaft tube 2 has the function of storing oil. In addition, the present bearing 3 is provided with an oil guiding passage 32 between the oil reservoir 24 and the rotating shaft 4, so that the lubricating oil 25 in the oil storage tank 24 can be transported to the shaft hole 31 and the rotating shaft through the oil guiding passage 32. 4. Therefore, sufficient lubricating oil for the bearing 3 and the rotating shaft 4 can be supplied to avoid friction between the bearing 3 and the rotating shaft 4, which can reduce noise generation and prolong the service life of the bearing 3 and the rotating shaft 4. The oil guiding passage 32 may also have a venting function to facilitate assembly of the bearing 3 and may be used to discharge high temperatures.

However, the above description is only the preferred embodiment of the present invention, and it is not intended to limit the scope of patent protection of this creation. Therefore, the equivalent changes made by using this creation specification and the contents of the schema are all included in the right of this creation. Within the scope of protection, it is given to Chen Ming.

2‧‧‧ shaft tube

22‧‧‧ side wall

23‧‧‧ accommodating space

24‧‧‧ oil storage tank

3‧‧‧ Bearing

31‧‧‧ shaft hole

32‧‧‧ oil passage

4‧‧‧ shaft

9‧‧‧shims

10‧‧‧ cover

Claims (12)

A fan includes: a base; a shaft tube, the shaft tube is disposed on the base, the shaft tube has a bottom wall and a side wall extending upward from the bottom wall, and the bottom wall and the side wall are formed An accommodating space is formed in the inner edge of the side wall, wherein the oil sump is filled with lubricating oil; the bearing is received in the accommodating space of the shaft tube, and the bearing center has a shaft hole, and the bearing is provided An oil guiding passage; a rotating shaft rotatably disposed in the shaft hole of the bearing, the oil guiding passage is located between the oil storage groove and the rotating shaft; a blade fixed to the center of the fan blade The fan blade is internally provided with a magnet; and a coil set is disposed outside the shaft tube, and the magnet is located outside the coil assembly. The fan of claim 1, wherein the oil sump ring is disposed at an inner edge of the side wall. The fan of claim 1, wherein the oil guiding passage extends to an outer edge and an inner edge of the bearing. The fan of claim 1, wherein the oil guiding passage extends from the outer edge of the bearing along the top and bottom ends of the bearing to the inner edge of the bearing. The fan of claim 1, wherein a bottom of the accommodating space is provided with a spacer, and the bottom end of the rotating shaft is abutted against the spacer. The fan of claim 1, wherein the top of the accommodating space is provided with a cover. A bearing structure of a fan includes: a shaft tube having a bottom wall and a side wall extending upwardly from the bottom wall, wherein an accommodating space is formed between the bottom wall and the side wall, and the inner edge of the side wall is recessed There is an oil storage tank, the oil storage tank contains lubricating oil; a bearing, the bearing is accommodated in the receiving space of the shaft tube, the bearing center The shaft has a shaft hole, the bearing is provided with an oil guiding passage; and a rotating shaft is rotatably disposed in the shaft hole of the bearing, and the oil guiding passage is located between the oil reservoir and the rotating shaft. The bearing structure of the fan of claim 7, wherein the oil sump ring is disposed at an inner edge of the side wall. The bearing structure of the fan of claim 7, wherein the oil guiding passage extends to the outer and inner edges of the bearing. The bearing structure of the fan of claim 7, wherein the oil guiding passage extends from the outer edge of the bearing along the top and bottom ends of the bearing to the inner edge of the bearing. The bearing structure of the fan of claim 7, wherein a bottom of the accommodating space is provided with a gasket, and the bottom end of the rotating shaft is abutted against the gasket. The bearing structure of the fan of claim 7, wherein the top of the accommodating space is provided with a cover.