TWI532926B - Fan and fan balance adjusting structure - Google Patents

Description

Fan balance adjustment structure and fan using the fan balance adjustment structure

The present invention relates to a fan balance adjustment structure and a fan using the fan balance adjustment structure.

Fans are widely used in industrial or indoor environments. Fans can drive airflow to achieve circulation and heat dissipation. Fans are mainly composed of motors and fan blades. The motor drives the blades to rotate to generate gas flow, and to avoid the fan running. Vibration or noise is generated in the assembly. When assembling, the weight is often added to the specific part of the fan to balance the center of gravity of the fan, so that the fan can run smoothly and quietly. However, the construction requirements of the weight are quite accurate and difficult. It takes time and effort, and it can't be handled by ordinary consumers. In addition, the counterweights may fall off during the future operation, which makes the fan lose balance; therefore, the existing balance correction will still cause many problems, resulting in Consumers are troubled, and how to improve this problem is the goal of the industry.

In view of the above problems, it is a primary object of the present invention to provide a structure that facilitates a balance correction operation.

In order to achieve the above object, the present invention provides a fan balance adjustment structure, including a fan connector, a first positioning member, a second positioning member, a balance block, a fixing member and an adjustment shaft, the fan connector having a receiving portion, the receiving portion is sequentially provided from one end to the other end The first positioning member, the balance block, the second positioning member and the fixing member, the adjusting shaft sequentially passes through the first positioning member, the balance block, the second positioning member and the end is fixed to the fixing member. The adjustment shaft is rotatable relative to the fan connector, and the adjustment shaft is coupled to the balance block screw. When the adjustment shaft is rotated relative to the fan connector, the balance block is opposite to the fan along the axial direction of the adjustment shaft. The connector moves.

Thereby, when installed in the fan, the rotation of the adjustment shaft is used to change the position of the balance block, thereby changing the center of gravity of the main fan, thereby achieving the purpose of adjusting the balance of the fan.

1‧‧‧Fan balance adjustment structure

10‧‧‧Fan connector

101‧‧‧first pocket

102‧‧‧Second capacity

103‧‧‧ third cavity

105‧‧‧ Groove

11‧‧‧First positioning piece

14‧‧‧Fixed parts

15‧‧‧Adjustment axis

151‧‧‧ first end

152‧‧‧ second end

153‧‧‧ Drive Department

16‧‧‧Flexible parts

2‧‧‧ Drives

111‧‧‧The top block

112‧‧‧forced parts

113‧‧‧Interrupted end

115‧‧‧O-ring

12‧‧‧Second positioning parts

13‧‧‧balance block

3‧‧‧main fan

31‧‧‧ first side

311‧‧‧ fan leaves

32‧‧‧ second side

4‧‧‧ hex wrench

1 is an exploded view of the fan balance adjustment structure of the present invention.

2 and 3 are schematic views showing the use state of the fan balance adjustment structure of the present invention.

Figure 4 is a perspective view of the fan of the present invention.

Figure 5 is an exploded view of the fan of the present invention.

Figure 6 is a cross-sectional view of the fan of the present invention.

Figure 7 is a partial perspective view of the fan of the present invention.

In the following, the structural features of the present invention and the intended effects thereof will be described in the preferred embodiments, and are not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 3 , the fan balance adjustment structure 1 of the present invention includes a fan connector 10 , a first positioning component 11 , a second positioning component 12 , a balance block 13 , a fixing component 14 , and a The adjusting shaft 15 has a receiving portion. The receiving portion is provided with the first positioning member 11 , the weighting block 13 , the second positioning member 12 and the fixing from one end to the other end. And the accommodating portion has a first receiving slot 101, a second receiving slot 102, and a third receiving slot 103. The third receiving slot 103 is located at the first receiving slot 101 and the second receiving slot 102. The first positioning member 11 and the second positioning member 12 are respectively disposed on the first receiving slot 101 and the second receiving slot 102. The balancing block 13 has a rectangular block shape, and the balancing block 13 is movably It is disposed in the third pocket 103. The adjusting shaft 15 is embedded in the receiving portion of the fan connector 10. The adjusting shaft 15 sequentially passes through the first positioning member 11 , the weighting block 13 , the second positioning member 12 , and the end is fixed to the fixing member 14 . The adjusting shaft 15 is rotatable relative to the fan connecting base 10, and the adjusting shaft 15 is rotatable relative to the first positioning member 11 and the second positioning member 12, wherein the adjusting shaft 15 has a first end 151 and a second end 152 is fixed to the fixing member 14 (the fixing member 14 is a nut in the embodiment and can be screwed and assembled with the second end 152 of the adjusting shaft 15 in other implementations. The first fixing member 14 is abutted against the fixing member 14 , and the first positioning member 11 is abutting against the first end 151 , wherein the first positioning member is 11 has an abutting block 111 and a pressing member 112. The pressing member 112 is screwed to the abutting block 111. The pressing member 112 has an insertion end 113, and the abutting block 111 has an insertion. The insertion end 113 is screwed to the insertion hole, and the abutting block 111 is disposed on the first receiving slot 101 of the receiving portion and the first end 151 abuts. The adjusting shaft 15 is screwed to the balance block 13 (the balance block 13 is provided with a screw hole for the adjusting shaft 15 to pass through), and when the adjusting shaft 15 rotates, the adjusting block 13 is driven by the thread to make the weight 13 along the adjusting shaft. The axial movement of 15 (as shown in Figures 2 and 3). The cross-section block 111 has a square shape to prevent the top block 111 from rotating relative to the first pocket 101. The second positioning member 12 has a square cross section to prevent the second positioning member 12 from being opposite to the second portion. The pocket 102 is rotated, and the weight of the weight 13 is square to prevent the weight 13 from rotating relative to the third pocket 103.

Thereby, the above structure is applied to the fan (refer to FIG. 4 to FIG. 7 with reference). In addition to the plurality of fan balance adjustment structures 1, the fan further includes a drive member 2 for driving the rotation and a main fan 3, the drive member 2 is a motor, and the main fan 3 is coupled to the drive member 2, the fan connector 10 is disposed on the main fan 3, more specifically, the main fan 3 has a first surface 31 and a second surface 32 opposite to each other, the first surface 31 has a plurality of blades 311, and the fan connector 10 is disposed at The second surface 32, the adjustment shaft 15 is disposed along the radial direction of the main fan 3, and the first end 151 of the adjustment shaft 15 has a driving portion 153 for assembling the tool (with FIG. 1 to FIG. 3). The portion 153 is a hexagonal hole for the hex wrench 4 to be assembled, wherein the fan connector 10 is provided with a recess 105 for the hex wrench 4 to extend into the driving portion 153; the driving portion 153 faces the outer side of the main fan 3 The fixing member 14 is adjacent to the center of the main fan 3, so that the fan balance adjustment structures 1 are radially arranged around the main fan 3, and are evenly distributed around the main fan 3 (the number of fan balance adjustment structures is set) And the position can be adjusted according to the situation, not limited to this aspect).

When the balance correction of the fan is performed (in conjunction with FIGS. 1 to 3), the adjustment shaft 15 can be driven to rotate from the driving portion 153 by using the hex wrench 4; when the adjustment shaft 15 is rotated relative to the fan connector 10, the balance block 13 will move along the axial direction of the adjusting shaft 15 relative to the fan connecting seat 10, and the position of the balancing block 13 will change to affect the center of gravity of the main fan 3, so as to adjust the balance of the fan.

Therefore, compared with the conventional fan, the balance correction operation is quite time-consuming and labor-intensive. The present invention can perform balance correction in any state before, during, and after the fan assembly, and can directly perform the correction operation by driving the adjustment shaft 15 from the outside. In addition, the installation of counterweights or complex construction can be easily done for ordinary consumers, providing a fan that is more convenient to assemble and use.

It should be noted that, in this embodiment, an elastic member 16 is disposed between the balance block 13 and the second positioning member 12, and the elastic member 16 is a coil spring and is sleeved on the adjusting shaft 15. The purpose of the elastic member 16 is to provide a supporting effect of the weighting block 13 to prevent the weighting block 13 from arbitrarily shifting in the adjusting shaft 15 to ensure that the weighting block 13 can be maintained at the same position after being corrected, and the weight can be increased. 13. Adjust the tightness of the shaft 15 and the second positioning member 12 to avoid noise when the fan is running.

Furthermore, an elastically deformed O-ring 115 is disposed between the pressing member 112 and the abutting block 111. The O-ring 115 is sleeved on the insertion end 113 of the pressing member 112 to adjust the shaft. When the roller 15 is rotated to push against the abutting block 111, the O-ring 115 can provide an elastic buffering effect between the pressing member 112 and the abutting block 111, and at the same time increase the adjusting shaft 15, the pressing member 112 and the abutting block. The tightness of 111, which avoids noise during fan operation, prevents the adjustment shaft 15 from loosening and changes the balance effect, ensuring that the fan can maintain stable operation.

Summarizing the above, the fan of the present invention not only has a structural innovation, but also has a progressive effect, conforms to the relevant provisions of the Patent Law, and filed a patent application according to law, so that the Office of the Office can grant a patent as soon as possible.

1‧‧‧Fan balance adjustment structure

10‧‧‧Fan connector

101‧‧‧first pocket

102‧‧‧Second capacity

103‧‧‧ third cavity

105‧‧‧ Groove

11‧‧‧First positioning piece

111‧‧‧The top block

112‧‧‧forced parts

113‧‧‧Interrupted end

12‧‧‧Second positioning parts

13‧‧‧balance block

14‧‧‧Fixed parts

15‧‧‧Adjustment axis

151‧‧‧ first end

152‧‧‧ second end

153‧‧‧ Drive Department

16‧‧‧Flexible parts

32‧‧‧ second side

Claims (10)

A fan balance adjustment structure includes a fan connector, a first positioning member, a second positioning member, a balance block, a fixing member and an adjustment shaft. The fan connector has a receiving portion, and the receiving portion has a receiving portion. The first positioning member, the balance block, the second positioning member and the fixing member are sequentially disposed from one end to the other end, and the adjusting shaft sequentially passes through the first positioning member, the balance block, and the second portion. The adjusting member is fixed to the fixing member, and the adjusting shaft is rotatable relative to the fan connecting seat. The adjusting shaft is coupled to the balance block screw lock. When the adjusting shaft rotates relative to the fan connecting seat, the balancing block will follow The axis of the adjustment shaft moves relative to the fan connector. The fan balance adjustment structure of claim 1, wherein the receiving portion has a first receiving slot, a second receiving slot and a third receiving slot, wherein the third receiving slot is located in the first receiving slot and the third receiving slot The first positioning member and the second positioning member are respectively disposed on the first receiving slot and the second receiving slot, and the balancing block is movably disposed in the third receiving slot. The fan balance adjustment structure of claim 2, wherein the adjustment shaft has a first end and a second end, the second end is fixed to the fixing member, and the second positioning member is provided for the fixing member The first positioning member is for the first end to abut. The fan balance adjustment structure according to claim 2, wherein the second positioning member has a square cross section to prevent the second positioning member from rotating relative to the second receiving groove, and the balance block has a square cross section to prevent The weight will rotate relative to the second pocket. The fan balance adjustment structure of claim 1, wherein the adjustment shaft has a first end and a second end, the second end is fixed to the fixing member, and the first positioning member has an abutting block. And a pressing member, the pressing member is assembled with the abutting block screw, the abutting block is disposed at the receiving portion and abuts against the first end, wherein the pressing member and the abutting block are disposed between the pressing member and the abutting block With a flexible deformation O-ring. The fan balance adjustment structure of claim 1, wherein the adjustment shaft is rotatable relative to the first positioning member and the second positioning member, and the fixing member is coupled to the adjustment shaft screw. The fan balance adjustment structure of claim 1, wherein an elastic member is disposed between the balance block and the second positioning member. A fan, comprising the fan balance adjustment structure according to any one of claims 1 to 7, further comprising a driving member for driving the rotation and a main fan, the main fan being coupled to the driving member, wherein the fan connecting seat is disposed at the fan Main fan. The fan of claim 8, wherein the main fan has a first side and a second side, the first side has a plurality of blades, and the fan connecting seat is disposed on the second side. The fan of claim 8, wherein the adjustment shaft is disposed along a radial direction of the main fan, the adjustment shaft has a driving portion for tool assembly, the driving portion faces an outer side of the main fan, and the fixing member is adjacent to the fixing member At the center of the main fan.