TWM492973U - Fan device with oil bearing - Google Patents

Description

Fan device for oil bearing

The present invention provides a fan device for oil-containing bearings, in particular, a fan device in which an oil-impregnated bearing can be effectively fixed and can avoid oil-impregnated bearings that are affected by interference tight fitting and dispensing control.

According to the fact, the use of electronic information products (such as computers) is becoming more and more popular and widely used. As demand drives the rapid development of electronic information industry technology, the development of electronic information is increasing toward the speed of execution and the increase in access capacity. The components in the aforementioned electronic information products often have high temperatures accompanying high-speed operation.

Taking a computer mainframe as an example, the internal central processing unit (CPU) generates a large amount of heat. In addition, when the central processing unit gradually increases in heat, the performance is reduced, and when the heat accumulation is higher than its allowable limit, Will force the computer to crash, in severe cases is more likely to cause damage; and, in order to solve the problem of electromagnetic radiation, usually the chassis is used to close the computer, so that the central processing unit and other heating components (or The rapid export of the thermal energy of the component has become an important issue.

Generally, the central processing unit is configured to solve the heat dissipation method by disposing a heat sink and a heat dissipation fan thereon, and one side of the heat sink is configured with a plurality of fins on the other side of the heat sink (there is no fin) The surface of the sheet directly contacts the central processing unit to conduct thermal energy to the fin end, and the heat is quickly dissipated by radiating heat and cooperating with the fan to force the air flow.

As shown in FIG. 1A and FIG. 1B, the heat dissipating fan 1 has a fan base 11 and a shaft cylinder 111. An oil-impregnated bearing 12 is disposed in the shaft cylinder 111, and a fan wheel 13 is disposed on the fan base 11. The outer ring of the fan wheel 13 is provided with a plurality of blades 131, and an axial center 132 extends from the inner side. The shaft hole 121 of the oil-impregnated bearing 12 is disposed and fastened, and the shaft 132 is stably rotated on the oil-impregnated bearing 12 when the heat-dissipating fan 1 is in operation. The oil-impregnated bearing 12 is fixedly disposed in the shaft cylinder 111. The oil-impregnated bearing 12 and the shaft cylinder 111 are fixed in two ways. Please refer to FIG. 1A. The fixing method is to perform a dispensing process between the oil-impregnated bearing 12 and the shaft cylinder 111, and the glue material 14 has a glue during dispensing. It is possible to flow between the oil-impregnated bearing 12 and the shaft cylinder 111 to the position of the shaft hole 121, thereby causing the abnormality of the shaft 132 to rotate when the shaft 132 rotates to the oil-impregnated bearing 12 and the shaft 132 to be stuck. Referring to FIG. 1B again. Figure, another fixed way is to the outer diameter of its oil bearing 12 and the inner diameter of the shaft 111 Interference with each other, but the outer diameter of the oil-impregnated bearing 12 and the inner diameter of the barrel 111 interfere with each other, which causes the shaft hole 121 to retract and press the shaft 132, thereby affecting the axis 132 and the shaft hole 121. Normal assembly and operation even caused the axis 132 to be stuck.

Therefore, the prior art has the following disadvantages:

1. The dispensing process is difficult to control and will form an abnormal sound and cause the shaft to be stuck;

2. Interference tightness will squeeze the axis to affect the normal assembly and cause the axis to be stuck.

Therefore, how to solve the above problems and problems in the past, that is, the creators of the case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Therefore, in order to effectively solve the above problems, the main purpose of the present invention is to provide a fan device in which an oil-impregnated bearing can be effectively fixed and can avoid oil-impregnated bearings that are affected by interference tight fitting and dispensing control.

Another object of the present invention is to provide a fan unit for an oil-impregnated bearing that can effectively increase the service life.

Another object of the present invention is to provide a fan assembly for an oil-impregnated bearing that can effectively reduce assembly costs.

For the above purposes, the present invention provides a fan assembly for an oil-impregnated bearing, comprising a base and an oil-impregnated bearing and a sub-set having a middle tube and a shaft barrel extending from the middle tube to one side. The shaft barrel has a bearing hole therein, and the middle tube has at least a pair of joints at a position of the bearing hole, and the oil bearing is disposed in the bearing hole, and the oil bearing has at least one set of joints disposed at The abutting portion is sleeved at a position outside the shaft cylinder; thereby, the oil-impregnated bearing is fixedly disposed in the bearing hole through the assembly portion and the abutting portion, and the Interference tight fit and dispensing are difficult to control and affect the function of operation; therefore, this creation has the following advantages:

1. Oil bearing can be effectively fixed;

2. It can avoid interference and tightness affecting operation;

3. Solve the problem that the dispensing is difficult to control.

2‧‧‧Fan device

21‧‧‧Base

211‧‧‧中管

2111‧‧‧Docking Department

212‧‧‧ shaft tube

2121‧‧‧ bearing hole

22‧‧‧ Oil bearing

221‧‧‧Team

222‧‧‧Axis hole

23‧‧‧stator group

24‧‧‧fan wheel

241‧‧‧ leaves

242‧‧‧Axis

Figure 1A is a cross-sectional view 1 of a conventional combination;

Figure 1B is a cross-sectional view of a conventional combination;

2A is an exploded perspective view of the first preferred embodiment of the present creation;

2B is a perspective exploded view of the first preferred embodiment of the present invention;

2C is a combined cross-sectional view of the first preferred embodiment of the present creation;

Figure 3 is a perspective exploded view of the second preferred embodiment of the present invention;

Figure 4A is a perspective exploded view of the third preferred embodiment of the present invention;

Figure 4B is a cross-sectional view of the combination of the third preferred embodiment of the present creation;

Figure 5 is a perspective exploded cross-sectional view of a fourth preferred embodiment of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to FIGS. 2A and 2B and 2C for an exploded perspective view and a three-dimensional exploded view and a combined cross-sectional view of the first preferred embodiment of the present invention. The fan device 2 includes a base 21 and an oil bearing 22 and a sub-group 23 and a fan wheel 24, wherein the base 21 has a middle tube 211 and a shaft barrel 212 extending from one side of the middle tube 211, and the shaft barrel 212 has a bearing hole 2121 therein. The middle tube 211 has at least a pair of joints 2111 at the position of the bearing hole 2121. The abutting portion 2111 is recessed on the surface of the middle tube 211 in the embodiment, but is not limited thereto, and the oil bearing 22 is The oil bearing 22 has at least one set of joints 221 at a position relative to the middle tube 211 and has an axial hole 222 therein. The set of joints 221 is plural in this embodiment. The convex body protrudes from the surface of the oil bearing 22, and the connecting portion 221 abuts against the abutting portion 2111.

The stator assembly 23 is sleeved at a position outside the shaft cylinder 212, and the stator assembly 23 and the oil-impregnated bearing 22 are disposed on the other side of the base 21 with the fan wheel 24, and the fan wheel 24 has a plurality of blades 241 and a shaft center 242, the shaft core 242 is disposed through the shaft hole 222, wherein the joint portion 221 of the oil-impregnated bearing 22 abuts the abutting portion 2111 of the middle tube 211, the butt portion The 2111 is configured to interfere with the two sides of the assembly portion 221 with equal force, thereby avoiding the contraction of the axial hole 222 to affect the axial center 242 in the axial hole 222, and further When the bearing 22 and the barrel 212 are in the dispensing process, the glue can be spaced apart via the assembly portion 221 to prevent the glue from flowing to the position of the shaft hole 222, whereby the oil bearing 22 is It can be effectively fixed and can avoid the effect of interference due to interference tightness and difficult control of dispensing, and at the same time achieve the effect of improving service life and reducing assembly cost.

Please refer to FIG. 3, which is a perspective sectional view of the second preferred embodiment of the present invention, which is substantially the same as the components and the connection relationship and operation of the previous embodiment, and the same components and component symbols are not described herein. The difference between the preferred embodiment is that the abutting portion 2111 is recessed on the surface of the middle tube 211 in the embodiment, and the oil bearing 22 is opposite to the middle tube 211. The joint portion 221 is an annular convex body protruding from the surface of the oil-impregnated bearing 22, whereby when the joint portion 221 of the oil-impregnated bearing 22 abuts against the abutting portion 2111 of the middle pipe 211, the abutting portion 2111 is The two sides of the assembly portion 221 are interfered with each other with equal force, so that the oil-impregnated bearing 22 can be effectively fixed and the effect of the operation due to interference tight fitting and difficult control of the dispensing can be avoided.

Please refer to FIGS. 4A and 4B , which are the three-dimensional sectional view and the combined sectional view of the third preferred embodiment of the present invention, which are substantially the same as the components and the connection relationship and operation of the previous embodiment. The component and the component symbol are different from the preferred embodiment in that the abutting portion 2111 is a plurality of convex bodies protruding from the surface of the middle tube 211 in the embodiment, and the oil bearing 22 is opposite to the middle tube 211. The assembly portion 221 at the position is a plurality of recesses recessed on the surface of the oil-impregnated bearing 22, whereby the assembly portion 221 of the oil-impregnated bearing 22 abuts against the abutting portion 2111 of the middle tube 211, the assembly portion The 221 is configured to interfere with the two sides of the abutting portion 2111 with equal force, so that the oil-impregnated bearing 22 can be effectively fixed and the effect of the operation due to interference tight fitting and difficult control of the dispensing can be avoided.

Please refer to FIG. 5, which is a perspective sectional view of the fourth preferred embodiment of the present invention, which is substantially the same as the components and the connection relationship and operation of the previous embodiment, and the same components and component symbols are not described herein. The difference between the preferred embodiment is that the abutting portion 2111 is an annular protrusion protruding from the surface of the middle tube 211 in the embodiment, and the oil bearing 22 is located at a position opposite to the middle tube 211. The assembly portion 221 is an annular groove recessed on the surface of the oil-impregnated bearing 22, whereby the assembly portion 221 of the oil-impregnated bearing 22 abuts against the abutting portion 2111 of the middle tube 211. The two sides of the abutting portion 2111 are interfered with each other with equal force, so that the oil-impregnated bearing 22 can be effectively fixed and the effect of the operation due to interference tight fitting and difficult control of the dispensing can be avoided.

In summary, the fan device of the oil-impregnated bearing of the present invention can achieve its efficacy and purpose when it is used. Therefore, the creation is a practical and excellent creation, and it is in accordance with the application requirements for the creation of a patent, and the application is made according to law. I hope that the trial committee will grant this case as soon as possible to protect the creators' hard work. If there is any doubt in the ruling committee, please do not hesitate to give instructions, the creators will try their best to cooperate, and they will feel good.

2‧‧‧Fan device

21‧‧‧Base

211‧‧‧中管

2111‧‧‧Docking Department

212‧‧‧ shaft tube

2121‧‧‧ bearing hole

22‧‧‧ Oil bearing

221‧‧‧Team

222‧‧‧Axis hole

23‧‧‧stator group

24‧‧‧fan wheel

241‧‧‧ leaves

242‧‧‧Axis

Claims (7)

[Item 1] A fan device for an oil bearing includes:
a base having a middle tube and a shaft tube extending from the middle tube, the shaft tube having a bearing hole, wherein the middle tube has at least a pair of joints at a position relative to the bearing hole; an oil bearing disposed at the bearing hole And the oil-impregnated bearing has at least one set of joints abutting the abutting portion; a certain subset is sleeved at a position outside the shaft barrel. [Item 2] A fan device for an oil-impregnated bearing according to claim 1, wherein the oil-impregnated bearing has a shaft hole. [Item 3] The fan device of the oil-impregnated bearing according to claim 1, further comprising a fan wheel having a plurality of blades and an axial center. [Item 4] The fan device of the oil-impregnated bearing according to claim 1, wherein the abutting portion is a groove recessed in the middle pipe surface. [Item 5] A fan device for an oil-impregnated bearing according to claim 4, wherein the assembly portion is a convex body protruding from the oil bearing surface. [Item 6] The fan device of the oil-impregnated bearing according to claim 1, wherein the abutting portion is a convex body protruding from the surface of the middle pipe. [Item 7] The fan device of the oil-impregnated bearing according to claim 6, wherein the assembly portion is recessed in the oil bearing surface.