JP3091538U - Fan bearing - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a bearing for a fan that accommodates part dust and lubricating oil and can operate the fan smoothly. SOLUTION: The bearing for a fan which is installed on a bearing seat of the fan and has a through hole formed in the center, wherein a plurality of accommodation slits are formed on an inner wall of the through hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is particularly designed for a fan that can be operated smoothly by containing dust and lubricating oil. Bearings.

[0002]

[Prior art]

  A conventional fan has a base and a rotating body, and a motor seat is provided at the center of the base. A bearing seat that extends upward is installed in the center of the motor seat. The bearing, which has a through hole in the seat, is housed and it is installed outside the bearing seat. A road plate and a stator are installed, and a plurality of valve bodies are provided on the outer peripheral edge of the rotating body. A permanent magnet is installed on the periphery, and a shaft that can be inserted into the through hole is provided in the center of the rotating body. Therefore, the rotating body can rotate due to the change in magnetic field between the stator and the permanent magnet. .

[0003]   There are two types of fan bearings, ball bearings and oil-impregnated bearings. Ball bearings have a higher degree of precision, but are more expensive to manufacture and are less noisy. In general, the fan bearings are oil-impregnated bearings because they have Has been.

[0004]

[Problems to be solved by the device]

  However, since oil-impregnated bearings are mostly made of copper, the material strength is Is insufficient, and conversely, the shaft of the rotating body is made of steel with high material strength, If the shaft runs in the bearing for a long time, friction produces debris from the bearing These debris adversely affect the operation of the rotating body. Furthermore, the axis turns As it rolls, the lubricating oil flows out of the bearing due to thermal expansion and therefore Rings cannot store lubricant.

[0005]   Therefore, the present invention was devised, in which the scrap and the lubricating oil were stored, and the fan It is an object of the present invention to provide a fan bearing that can operate smoothly.

[0006]

[Means for Solving the Problems]

    The invention of claim 1 of the present application is installed in the bearing seat of the fan, and the through hole is formed in the center. This is a fan bearing that is made up of a plurality of housing slits on the inner wall of the through hole. To provide a bearing for a fan, which is characterized by being made.   According to the second aspect of the present invention, the accommodation slit has a small opening and a large inside. The bearing of the fan according to claim 1, wherein:   The invention of claim 3 of the present application is characterized in that the accommodation slit has a rectangular cross section. The bearing of the fan according to claim 1 or 2 is provided.

[0007]

[Action]

  The present invention solves the above problems and collects the waste produced by friction. Can be accommodated in the volume slit, and further contains the thermally expanded lubricating oil Can be housed inside.

[0008]   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course The following examples merely show the preferred embodiments of the present invention, and the technical The range is not limited to the examples below.

[0009]   FIG. 1 is a perspective view showing a first embodiment of a bearing of a fan according to the present invention. FIG. 2 shows a state in which the first embodiment of the bearing of the fan according to the present invention is arranged on the fan. FIG. 3 is an exploded perspective view showing the first embodiment of the bearing of the fan according to the present invention. FIG. 4 is a cross-sectional view showing an example in which the fan is arranged, and FIG. FIG. 5 is a perspective view showing a second embodiment of the bearing, and FIG. 5 is a perspective view of a fan according to the present invention. It is sectional drawing which shows the state which arrange | positions the 2nd Example of ring to a fan.

[0010]

[Embodiment of device]

  As shown in FIG. 1, the bearing (10) of the fan of the present invention is a cylindrical body. A through hole (11) is formed in the center, the opening is small on the inner wall of the through hole (11), and the inside is A plurality of large receiving slits (12) are formed.

[0011]   As shown in FIGS. 2 and 3, the fan (20) includes a base (21) and a rotating body (27). And a housing groove (22) is formed in the center of the base (21). A motor seat (23) is installed in the motor seat (23), and the motor seat (23) is accommodated by a plurality of ribs. It is connected to the inner wall of the groove (22). Also, turn upward in the center of the motor seat (23). The bearing seat (24) that extends in A circuit board (25) and a stator (26) are installed on the outer peripheral edge. Of the rotating body (27) A plurality of valve bodies are provided on the outer peripheral edge, and a shaft (28) is installed at the center of the inside. There is.

[0012]   When combining, first place the bearing (10) in the bearing seat (24). Furthermore, the shaft (28) of the rotating body (27) is inserted into the through hole (11) to secure the fixed part. Therefore, it suffices to fix the end of the shaft (28).

[0013]   On the inner wall of the through hole (11) in the bearing (10), a plurality of accommodation slits (1 2) is formed so that when the shaft (28) is rotated, the debris produced by friction is It can be housed in the housing slit (12) and also contains the thermally expanded lubricating oil. Can be accepted.

[0014]   As shown in FIG. 4, the bearing (30) of the second embodiment of the present invention has a through hole in the center. (31) is formed, and a plurality of housing slits (3) are formed on the inner wall of the through hole (31). 2) are formed, and these receiving slits (32) are square in cross section.

[0015]   As shown in FIG. 5, when assembling, first the bearing (30) is attached to the fan (40). Placed in the bearing seat (42) of the base (41) at The shaft (44) of 43) is inserted into the through hole (31), and the shaft (44) is fixed by the fixing part. All you have to do is fix the end of the.

[0016]   Thereby, when the shaft (44) is rotated, the debris produced by friction is stored in the pick-up sleeve. Can be accommodated in the casing (32) and further accommodate the thermally expanded lubricating oil. It can be housed in the housing (32).

[0017]

[Effect of device]

    Since the present invention has the above configuration, the following effects can be achieved.   1. Can store debris: Since multiple accommodating slits are formed on the inner wall of the through hole, The debris produced by rubbing can be housed in the housing slit, thus The rotating body can operate smoothly. 2. Has excellent oil impregnation effect: Thermally expanded lubricating oil can be stored in the storage slit. Because it does not flow out from the bearing, it has an oil-impregnating effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a bearing of a fan according to the present invention.

FIG. 2 is an exploded perspective view showing a state in which a first embodiment of a bearing of a fan according to the present invention is arranged on the fan.

FIG. 3 is a sectional view showing a state in which the first embodiment of the bearing of the fan according to the present invention is arranged on the fan.

FIG. 4 is a perspective view showing a second embodiment of the bearing of the fan according to the present invention.

FIG. 5 is a sectional view showing a state in which a second embodiment of the bearing of the fan according to the present invention is arranged on the fan.

[Explanation of symbols]

10 bearings 11 through holes 12 accommodation slit 20 fans 21 base 22 Storage groove 23 Motor seat 24 bearing seat 25 circuit board 26 Stator 27 rotating body 28 axes 30 bearings 31 through hole 32 accommodation slit 40 fans 41 base 42 Bearing seat 43 rotating body 44 axis

Claims (3)

[Scope of utility model registration request] 1. A bearing for a fan which is installed in a bearing seat of a fan and has a through hole formed in the center thereof, wherein a plurality of housing slits are formed on an inner wall of the through hole. 2. The fan bearing according to claim 1, wherein the accommodation slit has a small opening and a large inside. 3. The fan bearing according to claim 1, wherein the housing slit has a rectangular cross section.