TWM449869U - Structure of high balance fan - Google Patents

Description

Highly balanced fan structure

This creation is a highly balanced fan structure, in particular a fan structure that effectively positions the motor magnet and the center perpendicularity of the shaft while reducing noise and increasing service life.

According to the assembly mode of the general cooling fan, the shaft core is wrapped around the blade body to form an integral body, and then the metal motor casing and the magnetic strip are respectively accommodated in the blade body, and the motor is energized to generate rotational power of the blade. The heat dissipation of the information product is carried out; however, the center position of the axis is easily offset during the injection molding process and when the magnetic strip is assembled, causing the instability of the vibration when the fan is running, and also generating noise; The assembly of the magnetic strip is not centrally positioned, so that the weight of the magnetic strip is not uniform, resulting in unstable center of gravity when the blade is running, and the same jitter.

The purpose of the present invention is to provide a highly balanced fan structure comprising a blade body, a disk, a shaft center and a fan frame; the plurality of top columns formed by the concave wall ring surface of the fan blade body are used to combine the disks When the main body of the fan blade is supported by the top pillar, the disk can be centrally positioned, and the bearing formed by the blade body and the fan frame can be positioned corresponding to the center of the bidirectional limiting axis to improve the jitter of the conventional fan. , the problem of loud noise and poor operating efficiency.

In order to achieve the above object, the present invention provides a highly balanced fan structure, which mainly comprises a blade body, a disk, a shaft center and a fan frame; The main body of the fan blade has a frame body, the outer surface of the outer ring surface of the frame has a fan blade, and the inner surface has a concave space. The inner wall of the inner concave surface has a plurality of top pillars protruding inwardly, and a plastic bearing with a specific height on the bottom surface and a concave space for a disk to be combined, so that the top pillar is supported by the top pillar to position its center perpendicularity; one end of the shaft is accommodated in the plastic bearing of the blade body The other end is combined with the central bearing of the fan frame, and is supported by the double bearing, so that the center of the shaft can be positioned, so that the operation of the blade is shaken due to the vertical positioning of the disk and the axis. Reduce and reduce noise generation.

Referring to the first to sixth figures, the present invention includes a blade body 1, a disk 2, a shaft 3, and a fan frame 4; wherein the blade 1 includes a frame 100 having a concave space 10. And a blade 101 integrally protruding from the periphery of the frame body 100. The ring wall surface 102 of the recessed space 10 integrally protrudes with a plurality of top pillars 103, and the top pillar 103 may have a triangular pyramid or a semi-cylindrical shape. a triangular pyramid), and the other end of the bottom portion of the concave space 10 has a bearing 104 for receiving and positioning the shaft 3, the central axis of which has a receiving groove 105 (as shown in the second figure); A recessed telescopic space 106 is formed around the bottom, and the bottom of the telescopic space 106 is designed with a slope 107 to absorb the thermal expansion and contraction of the blade body 1.

The disk 2 has a magnetic disk structure, and a through hole 20 through which the bearing 104 in the center of the blade body 1 passes is formed in the center; the fan frame 4 includes a frame 40 extending from the inner surface of the frame 40. The fixing base 400 is provided with a fixing base 400 for a circuit board 5 and is integrally formed from the center. The center bearing 41 of the center bearing 41 has an unobstructed receiving groove 42 for allowing the shaft core 3 to be sleeved and joined.

When the disk is assembled (refer to the third figure), the disk 2 is inserted into the recessed space 10 of the frame body 100 of the blade body 1, because the diameter of the disk 2 is slightly larger than the diameter of the space surrounded by the top posts 103. . Therefore, when the magnetic disk 2 is installed downward, the top ring 103 is pressed around the outer ring of the disk 2, so that the top posts 103 simultaneously generate the force of the forward struts (such as the fourth and fifth figures), thereby obtaining the disk 2 The center is positioned so that the center of gravity of the blade body 1 is not changed by the disk installation, and the center of the blade body is maintained.

Furthermore, the combination of the blade body 1 is performed by the shaft core 3 passing through the through hole 20 of the disk 2 at one end, and then directly inserted into the bearing groove 510 of the blade body 1 to be coupled, and then the fan is coupled. The main body 1 is inserted through the center hole 50 of the circuit board 5 through the center hole 50 of the circuit board 5, and is inserted into the central bearing 41 receiving groove 42 of the fan frame 4, so that the shaft center 3 is kept centered by the upper and lower limits of the double bearing. Positioning, the operation of the fan is highly balanced because the center is positioned (as shown in Figure 6).

1‧‧‧Leaf body

10‧‧‧ recessed space

100‧‧‧ frame

101‧‧‧ leaves

102‧‧‧ ring wall

103‧‧‧Top column

104‧‧‧ Bearing

105‧‧‧ accommodating slots

106‧‧‧Flexible space

107‧‧‧ slope

2‧‧‧Disk

20‧‧‧through hole

3‧‧‧Axis

4‧‧‧Fan frame

40‧‧‧ frame

400‧‧‧ fixed seat

41‧‧‧ center bearing

42‧‧‧ accommodating slots

5‧‧‧Circuit board

50‧‧‧ holes

The first picture: the exploded view of the creation.

Figure 2: A cross-sectional view of the main blade of the creation.

Figure 3: A cross-sectional view of the disk combination of this creation.

Figure 4: Top view of the disk combination of this creation.

Figure 5: Schematic diagram of the disk combination positioning of this creation.

Figure 6: A cross-sectional view of the combination of the creation.

1‧‧‧Leaf body

10‧‧‧ recessed space

100‧‧‧ frame

101‧‧‧ leaves

102‧‧‧ ring wall

103‧‧‧Top column

104‧‧‧ Bearing

105‧‧‧ accommodating slots

106‧‧‧Flexible space

2‧‧‧Disk

20‧‧‧through hole

3‧‧‧Axis

4‧‧‧Fan frame

40‧‧‧ frame

400‧‧‧ fixed seat

41‧‧‧ center bearing

42‧‧‧ accommodating slots

5‧‧‧Circuit board

50‧‧‧ holes

Claims (5)

A highly balanced fan structure mainly comprises: a blade body having a frame body, the outer surface of the frame has a fan blade extending integrally, and the inner surface has a concave space, and the inner wall of the concave space faces inward The integral protrusion has a plurality of top pillars, and the bottom surface thereof is raised with a bearing of a certain height; a magnetic disk is disposed in the concave space of the main body of the fan blade, and is uniformly supported by the plurality of top pillars, and the center is provided for the plastic bearing to be worn. a through hole; a fan frame, comprising a frame, a fixing seat extending from the inner surface of the frame for the circuit board, and a central bearing protruding from the center of the fixing seat; and an axial center; respectively The plastic bearing of the main body of the blade and the center bearing of the fan frame are connected; thereby, the swaying of the fan blade is reduced due to the vertical positioning of the disk and the center of the axis, and noise generation can be reduced. The highly balanced fan structure according to claim 1, wherein the top pillar has a triangular pyramid or a semicircular structure. A highly balanced fan structure as described in claim 1 wherein the bearing is made of plastic or metal. The highly balanced fan structure according to claim 1, wherein the fan body has a telescopic space around the bearing. A highly balanced fan structure as described in claim 4, wherein the bottom of the expansion space is set to a slope.