TWM492972U - Fan hub balancing structure - Google Patents

Description

Fan hub balance structure

The present invention relates to a fan hub balancing structure, and more particularly to a fan hub balancing structure that utilizes a punching or punching and reducing method to remove excess weight on the hub so that the hub can reach a balance.

The general material of the computer fan wheel can be divided into two kinds of wheels, metal and plastic. In the current fan production process, in order to achieve the best balance of fan operation, to reduce unnecessary vibration, such as To deal with a defective product in a "reduce-to-Balance" balance method, the weight of the hub must be reduced. The description of the metal (such as iron) wheel hub, because the general metal wheel is stamped and formed by a die, and can not reach a uniform thickness when stamping and drawing the metal wheel hub, so that the weight of the metal wheel after molding will be inconsistent. To cause the metal hub to be unbalanced too much. Therefore, in order to improve the imbalance of the metal hub, the manufacturer conveniently uses the stamping die to shape and adjust the geometric tolerances (such as heart rate, yaw, and verticality) to improve the unbalance of the metal hub after molding.

However, the above method improves the unbalance of the metal hub, and the weight of the top surface and the side surface of the metal hub is not substantially reduced or increased, and only the offset adjustment is made through the stamping die, so that the improvement effect of the balance is not obvious.

At present, the conventional metal wheel hub balance structure is formed by punching a hole on the top 11 of the metal hub 1 to confirm which angle is larger and punching, so that the metal wheel hub 1 is reached. To the effect of balance. Although it is known that the amount of unbalance of the metal hub 1 can be improved by the punching method, another problem is that the opening 111 for inserting an axial center is provided at the center of the top portion 11 of the conventional metal hub 1 and A groove 113 is provided adjacent to the periphery of the opening 111. Therefore, when the metal hub 1 is balanced and the top portion 11 is punched and unloaded, the groove 11 is affected, and the overall strength of the top portion 11 is affected.

In addition, since the current stamping die is designed for the upper and lower die, the surface of the side portion 12 of the metal hub 1 cannot be punched to improve the unbalance of the metal hub 1; if the side portion 12 of the metal hub 1 is turned 90 degrees, When the peripheral edge surface and the other peripheral edge surface of the side portion 12 are respectively opposed to the upper punch and the lower punch of the press die, the inner side surface of the side portion of the punched portion and the inner side of the other peripheral edge surface are not respectively The other support is supported so that the peripheral surface of the side portion 12 is punched by the upper punch, which may cause serious deformation of the side portion 12 of the metal hub 1 or a problem of punching and burrs, which may result in The magnet accommodated in the metal hub 1 is scratched or punched by the punched burrs.

Therefore, how to solve the problems and shortcomings of the above-mentioned practices, and to meet the requirements of light and thin without increasing the thickness, that is, the creators of the case and the relevant manufacturers engaged in the industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, the main object of the present invention is to provide a fan hub balance structure having a balance effect on the hub body.

Another object of the present invention is to provide a fan hub balance structure that is convenient for construction.

To achieve the above objective, the present invention provides a fan hub balancing structure, comprising: a hub body having a top portion, a side portion and a lip portion, the side portion being provided with an upper end and a lower end, the upper end portion being provided Connecting the periphery of the top portion, the lower end is opposite to one end of the lip Connected, and the side and the top define an accommodating space, the lip is formed to extend outward from the lower end away from the center of the hub, and has at least one excess weight portion, the excess weight portion Located on the lip and removed to form a balance portion formed on the lip; through the design of the structure, the hub body is effectively balanced, and the construction convenience is good.

2‧‧·Wheel body

21‧‧‧ top

211‧‧‧recessed trough

22‧‧‧ side

221‧‧‧ upper end

222‧‧‧Bottom

224‧‧‧ bends

24‧‧‧Lip

25‧‧‧ openings

26‧‧‧ accommodating space

27‧‧‧Excess weight parts

28‧‧‧balanced parts

3‧‧‧Fan

31‧‧‧Fan frame

32‧‧‧fan wheel

321‧‧‧ blade group

3211‧‧‧ blades

33‧‧‧Axis

34‧‧‧ Stator

35‧‧‧ shaft tube

36‧‧‧Magnetic parts

Figure 1A is a schematic perspective view of a conventional one.

Figure 1B is a schematic top view of a conventional one.

Figure 2 is a perspective view of a first preferred embodiment of the present invention.

Figure 3 is a top plan view of a first preferred embodiment of the present invention.

Figure 4 is a schematic cross-sectional view showing a first preferred embodiment of the present invention.

Figure 5 is a schematic cross-sectional view showing a second preferred embodiment of the present invention.

Figure 6 is a schematic cross-sectional view showing a third preferred embodiment of the present invention.

Figure 7 is a perspective view of a fourth preferred embodiment of the present invention.

Figure 8 is a top plan view of a fourth preferred embodiment of the present invention.

Figure 9 is a schematic cross-sectional view showing a fourth preferred embodiment of the present invention.

Figure 10 is a schematic cross-sectional view showing a fifth 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.

The present invention provides a fan hub balance structure, please refer to FIGS. 2 and 3, which is a perspective view and a top view of the first preferred embodiment of the present invention, and is supplemented with reference to FIG. 4; the fan hub balance structure The utility model comprises a hub body 2 which is made of a metal material (such as iron or aluminum), and the hub body 2 has a top portion 21, a side portion 22, a lip portion 24 and an opening. The opening 25 is formed at the center of the top portion 21 for inserting a shaft center 33, that is, one end of the shaft center 33 is inserted into the opening 25, and the other end is accommodated. In the accommodating space 26 of the hub body 2, the side portion 22 is provided with an upper end 221 and a lower end 222. The lower end 222 has a bent portion 224, and the bent portion 224 is from the lower end of the side portion 22. The upper portion 222 is formed by bending toward the outer side of the side portion 22.

The upper end 221 is connected to the periphery of the top portion 21, and the lower end 222 is connected to one end of the lip portion 24, that is, the side portion 22 extends vertically downward from the periphery of the top portion 21 (ie, the The side portion 22 extends vertically outward from the periphery of the top portion 21 away from the top portion 21, and the bent portion 224 is bent to extend over one end of the lip portion 24. The front portion 21 and the side portion 22 and the lip portion 24 integrally form the hub body 2.

The front portion 22 and the top portion 21 together define the accommodating space 26, the accommodating space 26 is connected to the opening 25, and the top portion 21 has a large trapezoidal recessed groove 211 from which the recessed groove 211 is attached. 21 is recessed along the peripheral edge of the adjacent corresponding opening 25 toward the lower end 222 of the side portion 22, and the depth in the opening 25 is adjusted according to the depth of the recess of the recessed groove 211; the lip portion 24 is Extending outwardly from the lower end 222 toward a center away from the hub, and forming an angle between an end surface of the lip portion 24 of the preferred embodiment and an outer side opposite the side portion 22, the angle of the angle is The description is made at 90 degrees, but it is not limited thereto. In the specific implementation, the user adjusts and designs the angle of the angle according to the position requirement of the installation space, such as the angle of the angle of 45 degrees, 60 degrees, 120 degrees or 135 degrees.

Referring to Figures 2 and 4, the lip portion 24 has at least one excess weight portion 27 on the lip portion 24 and is removed to form a balance portion 28 formed on the lip portion 24. In the above, the creation is performed by punching (or punching) the upper and lower punches of a mold (not shown) into the excess weight portion 27 of the lip portion 24, and then the lip portion is removed. The portion of the 24 that has been removed (reduced) forms the aforementioned balance portion 28, thereby making the hub body 2 can achieve a balanced effect.

And the balance portion 28 is a perforation formed between one end of the lip portion 24 and the outer periphery of the lip portion 24, that is, the perforation (ie, the balance portion 28) is opposite to the lip portion 24. One side of the outer side of the side portion 22 (i.e., the upper side of the lip portion 24) penetrates to the other side opposite the lip portion 24 (i.e., the lower side of the lip portion 24). The lip portion 24 of the preferred embodiment is described by having 12 excess weight portions 27 to be removed, but is not limited thereto. In the specific implementation, the number of excess weight portions 27 to be removed is determined according to the The amount of unbalance on the hub body 2 is determined, and the number of the excess weight portions 27 is matched to the number of the balance portions 28, for example, five places of the excess weight portion 27 are removed, and five balance portions 28 are formed.

Therefore, by using the punching (or hole punching) method, the portion of the lip portion 24 extending from the side portion 22 that needs to be removed (or reduced) (ie, the excess weight portion 27) is removed, so that the lip portion 24 is removed. The portion is formed to have the structural design of the balance portion 28 such that no punching is applied to the top portion 21 and the side portion 22 of the hub body 2 to ensure that the structural strength of the top portion 21 and the side portion 22 of the hub body 2 is not damaged. The hub body 2 can effectively achieve the balance effect, and achieve the reduction of working time cost and construction convenience. In other words, the structural design of the creation can effectively improve the structural strength of the conventional top 21 and the side portion 22 and the side. The part 22 will be deformed and the problem of punching burrs.

Please refer to the drawings of FIGS. 2, 4 and 5, which are schematic cross-sectional views of a second preferred embodiment of the present invention. The preferred embodiment of the present invention mainly applies the fan hub balance structure of the present invention to a fan 3 On the fan wheel 32, the fan 3 includes a fan wheel 32, a frame 31, a stator 34 and a shaft cylinder 35. The shaft cylinder 35 is disposed at the center of the fan frame 31, and is opposite to the shaft. The other end of the core 33 is pivoted. The stator 34 is sleeved on the outer side of the shaft cylinder 35. The fan wheel 32 includes a blade group 321 having a plurality of blades 3211 and the foregoing hub body 2, and the blade group 321 is It is made of a plastic material, and is integrally molded on the outer side of the hub body 2 to constitute the fan wheel 32. In short, the blade group 321 is integrally formed with the hub body 2 as a front part. The fan wheel 32 is disposed in the fan frame 31 and covers the stator 34 on the shaft cylinder 35 to induce the stator 34 to be excited by a magnetic member 36 in the hub body 2.

Therefore, the structural design of the hub body 2 applied to the fan wheel 32 by the present invention enables the aforementioned fan wheel 32 to be balancedly rotated without damaging the structural strength of the top portion 21 and the side portion 22 of the hub body 2. The effect of not shaking, as well as achieving reduced working hours and construction convenience.

Please refer to FIG. 6 , which is a schematic cross-sectional view of a third preferred embodiment of the present invention; the structure and the connection relationship of the preferred embodiment and the effect thereof are substantially the same as those of the first preferred embodiment described above, so It should be noted that the preferred embodiment of the present invention is mainly that the balance portion 28 of the first preferred embodiment is perforated and is designed as a recessed hole, that is, the balance portion 28 is a recessed hole, and the balance portion 28 is recessed. On the side of the lip 24 opposite the side of the side portion 22 (i.e., the upper side of the lip portion 24), and between one end of the lip portion 24 and the outer periphery of the lip portion 24, in other words, the recessed hole ( That is, the balance portion 28) is configured to be recessed from the upper side of the lip portion 24 toward the lower side of the lip portion 24, and does not penetrate the lower side of the lip portion 24.

Therefore, the lip portion 24 is removed (reduced) by a bit (or a milling cutter) that is mechanically processed, such as a mold (not shown), to the excess weight portion 27 on the lip portion 24. The portion is formed into a structural design in which the balance portion 28 is a recessed hole, so that the hub body 2 can be balanced and the work can be reduced without destroying the structural strength of the top portion 21 and the side portion 22 of the hub body 2. The cost and construction convenience are good. In other words, the structural design of the creation can effectively improve the structural strength of the top and side of the conventional metal hub and the deformation of the side and the burr of the punch.

Please refer to Figures 7, 8, and 9 for a perspective view, a plan view and a cross-sectional view of a fourth preferred embodiment of the present invention; the structure and connection relationship of the preferred embodiment and its efficacy are substantially in accordance with the first preferred embodiment described above. The example is the same, so it will not be repeated here. The difference between the two is that the balance portion 28 is formed from one end adjacent to the lip portion 24 to the outer periphery of the lip portion 24, that is, the perforation (ie, flat The balance portion 28) extends from the side of the lip portion 24 opposite the outer side of the side portion 22 (i.e., the upper side of the lip portion 24) to the opposite other side (i.e., the lower side of the lip portion 24), and is adjacent thereto. One end of the lip 24 extends through the outer periphery of the lip 24.

Therefore, the upper and lower punches of the mold, such as a mold (not shown), are removed by punching (or punching) the excess weight portion 27 on the lip portion 24, thereby removing the lip portion 24. The portion of the (reduced material) forms the structural design of the balance portion 28, so that the hub body 2 can be balanced and achieved without breaking the structural strength of the top portion 21 and the side portion 22 of the hub body 2. It reduces the cost of working hours and the convenience of construction. In other words, the structural design of the creation can effectively improve the structural strength of the top and side of the conventional metal hub and the deformation of the side and the burr of the punch.

FIG. 10 is a cross-sectional view showing a fifth preferred embodiment of the present invention; the structure and the connection relationship of the preferred embodiment and the effect thereof are substantially the same as those of the fourth preferred embodiment, and therefore are not re-introduced here. It is to be noted that the preferred embodiment of the present invention is mainly that the balance portion 28 of the fourth preferred embodiment is perforated and is designed as a recessed hole, that is, the balance portion 28 is a recessed hole, that is, the balance portion 28 a recess from one end adjacent to the lip portion 24 to the outer periphery of the lip portion 24 is formed on a side of the lip portion 24 opposite the side portion 22 (ie, the upper side of the lip portion 24), and does not penetrate the The underside of the lip 24.

Therefore, the lip portion 24 is removed (reduced) by a bit (or a milling cutter) that is mechanically processed, such as a mold (not shown), to the excess weight portion 27 on the lip portion 24. The portion is formed into a structural design in which the balance portion 28 is a recessed hole, so that the hub body 2 can be balanced and the work can be reduced without destroying the structural strength of the top portion 21 and the side portion 22 of the hub body 2. The cost and construction convenience are good. In other words, the structural design of the creation can effectively improve the structural strength of the top and side of the conventional metal hub and the deformation of the side and the burr of the punch.

As mentioned above, this creation has the following advantages over the prior art:

1. It has the effect of balancing the hub body.

2. The structural design of the creation can effectively improve the structural strength of the top and side of the conventional structure and the deformation of the side and the burr of the punching.

3. It has the advantages of reducing working hours and construction convenience.

However, the above descriptions are only preferred embodiments of the present invention, and variations of the methods, shapes, structures, and devices described above are intended to be included in the scope of the present invention.

2‧‧·Wheel body

21‧‧‧ top

211‧‧‧recessed trough

22‧‧‧ side

24‧‧‧Lip

25‧‧‧ openings

27‧‧‧Excess weight parts

28‧‧‧balanced parts

Claims (10)

A fan hub balancing structure includes: a hub body having a top portion, a side portion and a lip portion, the side portion being provided with an upper end and a lower end, the upper end being connected to a periphery of the top portion, the lower end Attached to one end of the lip, and the side and the top define an accommodating space, the lip is configured to extend outward from the lower end away from the center of the hub, and has at least one excess The weight portion is located on the lip and is removed to form a balance portion formed on the lip portion. The fan hub balance structure according to claim 1, wherein the lower end of the side portion has a bent portion, and the bent portion is formed by bending from the lower end toward the outer side of the side portion, and is extended Connected to one end of the lip. The fan hub balance structure of claim 1, wherein the balance portion is a perforation formed between an end of the lip and an outer periphery of the lip. The fan hub balance structure according to claim 1, wherein the balance portion is a recessed hole, and the balance portion is recessed on a side of the lip opposite to the side portion, and is located at the lip One end of the part is between the outer edge of the lip and the outer edge of the lip. The fan hub balancing structure according to claim 1, wherein the balance portion is a perforation formed from one end adjacent to the lip to a periphery of the lip. The fan hub balance structure according to claim 1, wherein the balance portion is a recessed portion, and the balance portion is recessed from one end adjacent to the lip portion to a periphery of the lip portion. On the side opposite to the outside of the side. The fan hub balancing structure according to claim 1, wherein the hub body further has an opening, the opening is open at a center of the top for relative The one end of the shaft is inserted into the opening, and the other end of the shaft is received in the accommodating space. The fan hub balance structure according to claim 1, wherein the outer side of the hub body is covered with a blade group of a plastic material, and the blade assembly and the hub body integrally form a fan wheel, and the fan wheel system is assembled. In a frame that a fan has. The fan hub balancing structure according to claim 1, wherein the hub system is made of a metal material. The fan hub balancing structure according to claim 1, wherein the top portion and the side portion and the lip portion integrally form the hub body.