TWI606184B - Energy-saving fan wheel - Google Patents

Description

Energy saving fan wheel

The present invention relates to an energy-saving fan wheel, and more particularly to an energy-saving fan wheel having a plurality of blades of different lengths.

Fan wheels are a common component used to drive fluids. Generally, the fan wheel can be driven to rotate by a power source (for example, a motor). During the rotation of the fan wheel, the fan wheel can drive the fluid to flow in a specific direction through its own fan blade, thereby achieving the driving flow. Effect.

Referring to FIG. 1 , it is a conventional fan wheel 9 . The fan wheel 9 includes a hub 91 and a plurality of blades 92 . The plurality of blades 92 are annularly disposed on the outer periphery of the hub 91 . Among them, the plurality of blades 92 generally have the same blade length.

However, in the case where the plurality of blades 92 have the same blade length with each other, when the fluid is pushed by any of the blades 92, the pushed fluid will largely abut against the adjacent blades 92, which is not only the case The speed of the fluid passing through the blade 92 is slowed down, and the fluid is more resistant to the rotation of the fan wheel 9 as a whole, so that the fan wheel 9 cannot achieve the maximum driving effect with minimum kinetic energy. This fan wheel 9 has a problem of kinetic energy loss.

In view of this, the present invention provides an energy-saving fan wheel to solve the problem of kinetic energy loss of a conventional fan wheel.

The object of the present invention is to provide an energy-saving fan wheel, the fan blade group of the energy-saving fan wheel having blades of different blade lengths, forcing the fluid to travel in a specific direction and reducing the overall resistance, thereby enabling the hub and the blade group to Maximum kinetic energy to achieve maximum driving effect, with more reduction The effect of residual kinetic energy loss.

In order to achieve the foregoing object, the energy-saving fan wheel of the present invention comprises: a hub; and a blade group having a first blade and a second blade disposed in a circumferential direction of the hub. a third blade, a fourth blade, a fifth blade, a sixth blade, a seventh blade and an eighth blade, each blade having a base portion and an adjustment portion, each The adjusting portion of the blade is coupled to the substrate portion and away from the hub, and the adjusting portion of each of the blades has a blade length in a radial direction of the hub, the first blade and the second fan The blade length ratio of the leaf, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade of the adjustment portion is 1:8 : 3:4:9:2:7:6; wherein the first blade, the five blades, and the center of the hub are located on a first radial extension line; the second blade, the six blades, and The center of the hub is located on a second radial extension line; the third blade, the seven blades and the center of the hub are located on a third radial extension line; the fourth blade The eight blades and the center line of the hub is located at a fourth radial extending line. Thereby, each of the blades may have a different force from the fluid due to the difference in the blade length of the adjusting portion of the adjusting portion, thereby forcing the fluid to travel in a specific direction and reducing the overall resistance, thereby enabling the hub and the blade group to It achieves the maximum driving effect with minimum kinetic energy and has the effect of reducing excess kinetic energy loss.

The first blade, the second blade, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade are each The substrate portion has an opposite inner end and an outer end, respectively, the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth The fan blade, the seventh blade, and the eighth blade are coupled to the hub by the respective inner ends, the first blade, the second blade, the third blade, the fourth blade, The circumscribed end of each of the fifth blade, the sixth blade, the seventh blade and the eighth blade is away from the hub, and the first blade, the second blade, and the third blade The adjusting portion of each of the fourth blade, the fifth blade, the sixth blade, the seventh blade and the eighth blade is coupled to the external end. Thereby, each of the blades will flow with the blade length of the adjusting portion of the adjusting portion. The body has different forces to force the fluid to travel in a specific direction and reduce the overall resistance, so that the hub and the blade group can achieve the maximum driving effect with minimum kinetic energy, and has the effect of reducing excess kinetic energy loss.

The first blade, the second blade, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade are each The adjusting portion has an opposite combined end and a free end, respectively, the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth fan The adjusting portion of each of the blade, the seventh blade and the eighth blade is coupled to the external end of the substrate portion by the binding end, the first blade, the second blade, the third blade, a free end of the adjustment portion of the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade faces away from the hub, the first blade, the first The blade lengths of the two blades, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the adjustment portion of the eighth blade are each The length of the bond end to the free end. Thereby, each of the blades may have a different force from the fluid due to the difference in the blade length of the adjusting portion of the adjusting portion, thereby forcing the fluid to travel in a specific direction and reducing the overall resistance, thereby enabling the hub and the blade group to It achieves the maximum driving effect with minimum kinetic energy and has the effect of reducing excess kinetic energy loss.

The first blade, the second blade, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade system The hub is coupled in an equidistant manner in the circumferential direction. Thereby, each of the blades may have a different force from the fluid due to the difference in the blade length of the adjusting portion of the adjusting portion, thereby forcing the fluid to travel in a specific direction and reducing the overall resistance, thereby enabling the hub and the blade group to It achieves the maximum driving effect with minimum kinetic energy and has the effect of reducing excess kinetic energy loss.

〔this invention〕

1‧‧·wheels

11‧‧‧ top wall

12‧‧‧ ring side wall

2‧‧‧Face Leaf Group

21‧‧‧First leaf

22‧‧‧second leaf

23‧‧‧ Third leaf

24‧‧‧fourth leaf

25‧‧‧ fifth leaf

26‧‧‧6th leaf

27‧‧‧ seventh leaf

28‧‧‧ eighth leaf

211~281‧‧‧Parts

211a~281a‧‧‧Internal end

211b~281b‧‧‧External end

212~282‧‧‧Adjustment Department

212a~282a‧‧‧ joint end

212b~282b‧‧‧Free end

D‧‧‧blade length

L‧‧‧radial extension line

[study]

9‧‧‧fan wheel

91‧‧·wheels

92‧‧‧ fan leaves

Figure 1: Schematic diagram of the structure of a conventional fan wheel.

Figure 2: Schematic diagram of the structure of the energy-saving fan wheel of the present invention.

Fig. 3 is a partially enlarged view showing the structure of the fan blade of the energy-saving fan wheel of the present invention.

Fig. 4 is a schematic view showing the structure of the energy-saving fan wheel of the present invention before processing.

The above and other objects, features and advantages of the present invention will become more <RTIgt; The energy-saving fan wheel of the present invention comprises a hub 1 and a blade group 2, and the blade group 2 is coupled to the hub 1.

The hub 1 has a top wall 11 and a ring side wall 12, and the ring side wall 12 is coupled around the top wall 11, and the hub 1 can be rotated by a rotating shaft (not shown), which is known to those skilled in the art. It is well known and will not be described here.

Referring to FIGS. 2 and 3 simultaneously, the blade group 2 has a first blade 21, a second blade 22, a third blade 23, and a first one disposed on the hub 1 in a circumferential direction. Four blades 24, a fifth blade 25, a sixth blade 26, a seventh blade 27 and an eighth blade 28, each of the blades having a base portion 211-281 and an adjustment portion 212~ 282, the adjusting portions 212-282 of the blades are coupled to the substrate portions 211-281 and away from the hub 1, and the adjusting portions 212-282 of the blades each have a radial direction in the hub 1. a blade length D, the first blade 21, the second blade 22, the third blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, and the seventh The blade length ratio of the adjustment portions 212 to 282 of the blade 27 and the eighth blade 28 is 1:8:3:4:9:2:7:6. The first blade 21, the second blade 22, the third blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, and the seventh blade 27 And the lengths of the substrate portions 211 to 281 of the eighth blade 28 in the radial direction of the hub 1 are preferably equal, and the first blade 21, the second blade 22, and the third blade 23. The fourth blade 24, the fifth blade 25, the sixth blade 26, the seventh blade 27, and the eighth blade 28 are coupled to the hub 1 in an equidistant manner in the circumferential direction. . Thereby, each of the blades will be The blade length D of the adjusting portions 212 to 282 of the self has different forces with the fluid to force the fluid to travel in a specific direction and reduce the overall resistance, so that the hub 1 and the blade group 2 can be minimized. The kinetic energy achieves the maximum driving effect and has the effect of reducing excess kinetic energy loss.

In order to clearly explain the structural form of the blade of the blade group 2, the following description will be made by taking the first blade 21 as an example. It is particularly noted that the following description is equally applicable to the second blade 22, the third. The blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, the seventh blade 27, and the eighth blade 28.

For example, the substrate portion 211 of the first blade 21 has an opposite inner end 211a and an outer end 211b. The first blade 21 is coupled to the ring sidewall of the hub 1 by the inner end 211a. 12, the external end 211b of the first blade 21 is away from the hub 1, and the adjusting portion 212 of the first blade 21 is coupled to the external end 211b.

The adjusting portion 212 of the first blade 21 has an opposite end 212a and a free end 212b. The adjusting portion 212 of the first blade 21 is coupled to the base portion 211 by the connecting end 212a. The free end 212b of the adjusting portion 212 of the first blade 21 faces away from the hub 1, and the blade length D of the adjusting portion 212 of the first blade 21 is the coupling end 212a to the free The length of the end 212b.

From the structural form of the first blade 21, the second blade 22, the third blade 23, the fourth blade 24, the fifth blade 25, and the sixth blade 26 are similarly known. The substrate portions 221 to 281 of the seventh blade 27 and the eighth blade 28 respectively have an inner end 221a-281a and an outer end 221b-281b, and the adjusting portions 222-282 respectively have a connecting end. 222a~282a and a free end 222b~282b. And the second blade 22, the third blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, the seventh blade 27, and the eighth blade 28 are each The definition of the blade length D of the adjusting portions 222 to 282 is also defined by the blade length D of the adjusting portion 212 of the first blade 21. When the first blade 21, the second fan The adjustment portion 212 of the leaf 22, the third blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, the seventh blade 27, and the eighth blade 28 When the blade length ratio of 282 is 1:8:3:4:9:2:7:6, the fluid and the blades of the blade group 2 may have different forces to force the fluid to travel in a specific direction. The overall resistance is reduced, so that the hub 1 and the blade group 2 can achieve the maximum driving effect with minimum kinetic energy, and have the effect of reducing excess kinetic energy loss.

The manner in which the blade group 2 of the present invention is formed will be explained below. Referring to FIG. 4, the first blade 21, the second blade 22, the third blade 23, the fourth blade 24, the fifth blade 25, and the sixth blade 26, The adjusting portions 212 to 282 of the seventh blade 27 and the eighth blade 28 may each be a plate, and in the radial direction of the hub 1, the plate may be evenly divided into several equal parts ( For example, in the tenth division in the present embodiment, then, referring to FIG. 2, the first blade 21, the second blade 22, the third blade 23, and the fourth blade 24, The adjusting portions 212-282 of the fifth blade 25, the sixth blade 26, the seventh blade 27 and the eighth blade 28 may be according to 1:8:3:4:9:2:7: The ratio of 6 is cut so that the adjustment portions 212 to 282 formed by the sheet have a length of the above ratio in the radial direction of the hub 1. Thereby, the fluid can have different forces with the blades of the blade set 2 to force the fluid to travel in a specific direction and reduce the overall resistance, thereby enabling the hub 1 and the blade set 2 to be minimized. The kinetic energy achieves the maximum driving effect and has the effect of reducing the excess kinetic energy loss.

Referring to Fig. 2 again, the blade group 2 has the same blade length D of the adjustment portion of any two blades that face each other in the radial direction of the hub 1. Further, the first blade 21, the third blade 23, the fifth blade 25, and the seventh blade 27 have the same blade length D of the adjustment portion of the blade on each of the two sides.

In the present embodiment, in the radial direction of the hub 1, the first blade 21 is opposite to the fifth blade 25, that is, the first blade 21, the five blades 25, and the center of the hub 1. It is located on a radial extension line L. By the arrangement relationship between the first blade 21 and the fifth blade 25, the second blade 22 and the sixth blade 26, and the third blade 23 and the seventh fan are similarly known. The leaf 27, and the fourth blade 24, have the same arrangement relationship as the eighth blade 28. Wherein, when the first fan blade 21, the five blades 25 and the center of the hub 1 pass through the radial extension line L is a first radial extension line, the second blade 22, the six fans The center of the blade 26 and the hub 1 may be located on a second radial extension line; the center of the third blade 23, the seven blades 27 and the hub 1 may be located on a third radial extension line; the fourth fan The blade 24, the eight blades 28 and the center of the hub 1 are located on a fourth radial extension line.

In more detail, if the blade length D of the adjusting portion 212 of the first blade 21 is 1n (the n is a length reference value, the length reference value may be any value greater than 0), the second blade 22. Adjustment portions 222-282 of the third blade 23, the fourth blade 24, the fifth blade 25, the sixth blade 26, the seventh blade 27, and the eighth blade 28 The blade lengths D may be 8n, 3n, 4n, 9n, 2n, 7n, and 6n, respectively, that is, the sum of the blade lengths D of the adjustment portions 212 and 252 of the first blade 21 and the fifth blade 25 is 10n. (1n+9n); the sum of the blade lengths D of the second blades 22 and the adjustment portions 222, 262 of the sixth blade 26 is also 10n (8n + 2n); the third blade 23 and the seventh The sum of the blade lengths D of the adjustment portions 232, 272 of the blade 27 is also 10n (3n + 7n); the sum of the blade lengths D of the adjustment portions 242, 282 of the fourth blade 24 and the eighth blade 28 is also It is 10n (4n+6n). In addition, the sum of the blade lengths D of the adjustment portions 212, 222, and 282 of the first blade 21 and the fan blades (the second blade 22 and the eighth blade 28) on both sides is 15n (1n+8n+6n) The sum of the blade lengths D of the adjustment portions 232, 222, 242 of the third blade 23 and the fan blades (the second blade 22 and the fourth blade 24) on both sides is 15n (3n + 8n + 4n); The sum of the blade lengths D of the adjustment portions 252, 242, and 262 of the fifth blade 25 and the fan blades (the fourth blade 24 and the sixth blade 26) on both sides is 15n (9n+4n+2n); The sum of the blade lengths D of the adjustment portions 272, 262, and 282 of the seventh blade 25 and the fan blades (the sixth blade 26 and the eighth blade 28) on both sides is 15n (7n + 2n + 6n).

When the blade group 2 is disposed in the above manner, the blade group 2 can be made to have a phase in any radial direction of the hub 1 on the premise that the total length of each blade is proportional to the weight. Like the weight, and the sum of the weights of the first blade 21, the third blade 23, the fifth blade 25, and the seventh blade 27, which are respectively 90 degrees apart in the circumferential direction, and the blades of the respective two sides thereof tend to be equal Further, the weight of the entire blade group 2 can be evenly distributed on the hub 1. When the hub 1 is rotated by the rotating shaft, the hub 1 is not displaced due to severe weight unevenness, and is maintained. Turn the balance effect.

The following is a description of the working principle of the blade group 2 and the reason for achieving the effect. In general, when the hub 1 is rotated by the rotating shaft, the blade group 2 can rotate synchronously with the hub 1, and in the process in which the blade group 2 contacts and pushes the fluid, each of the blades The adjustment portions 212 to 282 have different forces with the fluid because of their different blade lengths D, thereby changing the overall flow field and forcing the fluid to travel in a specific direction. Taking the second blade 22 and the third blade 23 as an example, when the second blade 22 pushes the fluid, the blade length D of the adjusting portion 222 of the second blade 22 is larger than the third blade. The adjustment portion 232 of the blade 23 has a blade length D such that only a small portion of the fluid pushed by the adjustment portion 222 of the second blade 22 will abut against the adjustment portion 232 of the third blade 23, so that not only Most of the fluid pushed by the adjusting portion 222 of the second blade 22 is not blocked by the adjusting portion 232 of the third blade 23 and flows rapidly, and the fluid is prevented from generating excessive resistance to the rotation of the entire fan wheel. And similar effects are also present in the other blades of the blade group 2.

It can be seen that, in the case where the adjustment portions 212 to 282 of the respective blades of the blade group 2 have different blade lengths D, the fluid is subjected to the blade having a larger blade length D (for example, When the blade with the adjustment portions 222, 252, 272, 282 is pushed, only a small portion of the pushed fluid will contact adjacent blades having a smaller blade length D (eg, having adjustment portions 212, 232) , 242, 262 blades, not only can a part of the fluid driven by the blade with a large blade length D be able to flow quickly without being obstructed, and in the case of improved flow smoothness, The fluid can be further reduced to generate excessive resistance to the hub 1 and the blade group 2, so that the hub 1 and the blade group 2 can achieve maximum driving effect with minimum kinetic energy, and have a reduced The effect of excess kinetic energy loss.

It is to be noted that the sum of the blade lengths D of the adjustment portions of the two blade blades of the blade group 2 in the radial direction of the hub 1 is equal, and the first blade 21 and the third blade are equal. 23, the fifth blade 25 and the seventh blade 27 are equal to the sum of the blade lengths D of the adjustment portions of the blades on the respective two sides, even if the blades are different from the blades of the adjustment portions 212 to 282 The length D is different and has a different force from the fluid. However, under the premise that the blade length D of each of the blade adjustment portions 212-282 is proportional to the force, the blade group 2 can be made in the hub 1 Any radial direction has a similar force, and the first blade 21, the third blade 23, the fifth blade 25 and the seventh blade 27 which are respectively 90 degrees apart in the circumferential direction and their respective two sides The sum of the forces of the blades tends to be equal. When the hub 1 is rotated by the rotating shaft, the blade group 2 does not shift due to severe unevenness of the force, and thus can maintain the balance of rotation. Further, it has the effect of reducing excess kinetic energy loss.

In summary, the energy-saving fan wheel of the present invention has blades of different blade lengths, which can force the fluid to travel in a specific direction and reduce the overall resistance, so that the hub 1 and the blade group 2 can reach the maximum with minimum kinetic energy. The driving effect has the effect of reducing the excess kinetic energy loss.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧·wheels

11‧‧‧ top wall

12‧‧‧ ring side wall

2‧‧‧Face Leaf Group

21‧‧‧First leaf

22‧‧‧second leaf

23‧‧‧ Third leaf

24‧‧‧fourth leaf

25‧‧‧ fifth leaf

26‧‧‧6th leaf

27‧‧‧ seventh leaf

28‧‧‧ eighth leaf

211~281‧‧‧Parts

211a~281a‧‧‧Internal end

211b~281b‧‧‧External end

212~282‧‧‧Adjustment Department

L‧‧‧radial extension line

Claims (4)

An energy-saving fan wheel includes: a hub; and a blade group having a first blade, a second blade, a third blade, and a first one disposed along a circumferential direction of the hub a four-blade, a fifth, a sixth, a seventh, and an eighth, each of the blades having a base portion and an adjustment portion, the adjustment portion of each of the blades Combining the substrate portion and away from the hub, the adjusting portion of each of the blades has a blade length in a radial direction of the hub, the first blade, the second blade, the third blade, The ratio of the blade length of the adjustment portion of the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade is 1:8:3:4:9:2 :7:6; wherein the first blade, the five blades, and the center of the hub are located on a first radial extension line; the second blade, the six blades, and the center of the hub are located at a a second radial extension line; the third blade, the seven blades, and a center of the hub are located on a third radial extension line; the fourth blade, the eight blades, and a center of the hub It is located at a fourth radial extending line. The energy-saving fan wheel of claim 1, wherein the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade The substrate portion of each of the seventh blade and the eighth blade respectively has an opposite inner end and an outer end, and the first blade, the second blade, the third blade, the first a fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade are coupled to the hub by the respective inner ends, the first blade and the second blade The external end of the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade are away from the hub, and the first fan The adjustment portion of the leaf, the second blade, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade are combined External terminal. The energy-saving fan wheel of claim 2, wherein the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade The seventh leaf And the adjusting portion of each of the eighth blades has an opposite combined end and a free end, and the first blade, the second blade, the third blade, the fourth blade, and the fifth The adjusting portion of each of the fan blade, the sixth blade, the seventh blade and the eighth blade is coupled to the external end of the substrate portion by the bonding end, the first blade and the second blade a free end of the adjusting portion of the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade facing away from the hub, The adjustment portion of the first blade, the second blade, the third blade, the fourth blade, the fifth blade, the sixth blade, the seventh blade, and the eighth blade The length of the blade is the length of the respective binding end to the free end. The energy-saving fan wheel of claim 1, wherein the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade The seventh blade and the eighth blade are coupled to the hub in an equidistant manner in the circumferential direction.