TWM570366U - Blower fan wheel improved structure - Google Patents

Abstract

The utility model relates to an improved structure of a blower fan wheel, which is mainly composed of a fan wheel and a plurality of blades, wherein a peripheral edge of the fan wheel is expanded to form a set of joint portions, and each blade is arranged on the joint portion, and the blades are transversely broken. The faces are respectively curved in a curved shape at both ends, and a guide arc segment, a pressurizing segment and an air outlet segment are sequentially formed on both sides of the blade from the center direction of the fan wheel toward the outer direction of the fan wheel; Each of the blades is inclined at a top end of one of the side faces toward a middle position to form a flow guiding surface, thereby allowing the gas to flow in the direction of the fan wheel through the traction of the flow guiding surfaces of the respective blades, and then sequentially passing the arc guiding segments and adding The pressure section and the outlet section discharge the gas and cause the gas to escape to the outside of the assembly.

Description

Blower fan wheel improved structure

This creation is related to the structure of the fan wheel, and in particular to the improved structure of a blower fan wheel.

The blower fan wheel disclosed in the new patent No. M360948 of the Republic of China, which comprises a fixed disc, the peripheral edge of which is expanded to form a set of joints, and a plurality of unjoined joints are arranged on the joint portion. The edge is tangential and has a curved arc-shaped insertion hole; the plurality of blades respectively have a cross-sectional shape corresponding to the shape of the insertion hole on the set of joints, and each of the blade systems is respectively inserted and fixed to each insertion In the hole, only the blades of the blower fan wheel structure have the shape of the corresponding insertion holes, so that the blades are all curved and flaky, and the thickness of each blade is fixed from the center of the adjacent fixed plate toward the outside. Therefore, when such a blower fan wheel structure performs hurricane movement through each blade, each blade lacks a gas pressurization means, resulting in a lack of sufficient pressure of the gas during the discharge process, resulting in poor gas exhaust efficiency.

In addition, the blower fan wheel disclosed in the new patent No. M435517 of the Republic of China has a fixed disc, and a plurality of joints are formed on the outer periphery of the fixed disc, and a plurality of edges are arranged on the joint portion. The leaves are equidistantly arranged around the portion, and each of the blades is respectively divided by a first side and a second side, and the first side and the second side of each of the blades respectively have an inner circumference facing the center of the fixed disk. Oblique guide surface; however, the inclined guide surface of each blade can change the direction of the gas to guide the gas in the direction of its fixed disk, but when the gas is guided toward the fixed disk, the end of each blade The lack of fixation is caused by the sloshing of the blades and the resonance phenomenon, resulting in poor gas exhaust efficiency.

In view of this, how to solve the above problems is the primary issue that the creative office wants to solve.

One object of the present invention is to provide a blower fan blade structure that is designed to vary the distance between the first side of each blade and the second side of the adjacent blade, thereby increasing the outward flow of gas along the first axis. The gas pressure in the middle can effectively improve the efficiency of gas escape efficiency.

The second object of the present invention is to provide a blower fan blade structure which can be disposed on the top end of each blade through a fixing ring, so that when the gas flows between the blades, the fixing ring can effectively prevent the blades from shaking and resonating. The phenomenon further maintains the gas escape efficiency when the fan wheel performs the hurricane action.

For the purpose of the foregoing, the present invention provides a modified structure of a blower fan wheel, which has a wheel and a plurality of joints formed on the periphery of the fan wheel, and a plurality of rings are arranged on the ring portion. An equally spaced and spaced apart blade, wherein each of the blades has a long rectangular shape and has a top end and a bottom end, and each of the blades is disposed on the set of portions, each of the blades The top end and the bottom end are respectively located at two sides of the set portion, and a fixing ring is disposed between the top end of each of the blades and the connecting portion; each of the blades has a first side and a first side on the two sides thereof a second side opposite to the side surface, and each of the blades has a curved cross-section which is tapered at both ends, so that the first side is sequentially formed from the middle position of the fan wheel toward the outer direction of the joint portion a first arc guiding segment, a first pressing segment and a first air outlet segment, and the second side surface is sequentially formed with a second arc guiding segment from an intermediate position of the fan wheel toward an outer direction of the assembly portion. a second pressurizing section and a second outlet section; each of the blades is The top end of the second side surface is inclined to form a flow guiding surface toward the intermediate position, and the bottom end of each of the blades is formed with an inclined guiding surface inclined toward the intermediate position of the fan wheel.

Preferably, the angle between each of the inclined guiding surfaces and the corresponding outer peripheral edge of the blade and the angle between each of the guiding surfaces and the corresponding outer peripheral edge of the blade are respectively less than 50 degrees.

Preferably, each of the blades is integrally formed on the set of joints.

Preferably, the center of the fan wheel is recessed to form a concave peripheral surface, and a through portion for assembling a motor drive shaft is disposed at a center of the concave peripheral surface.

Preferably, the distance of each of the blades from the top end to the assembly portion is greater than the distance from each of the blades from the bottom end thereof to the assembly portion.

Preferably, a gas passage is formed between each of the blades and the adjacent blades, and the gas passage has a first distance between the first arc segment of each blade and the second arc segment adjacent to the blade. a first distance between the first pressing section of the blade and a second pressing section adjacent to the blade, and a first air outlet section of each blade and a second air outlet section adjacent to the blade have a a third distance, and the third distance is greater than the first distance, and the first distance is greater than the second distance.

Preferably, the distance of each of the blades from the top end to the assembly portion is greater than the distance from each of the blades from the bottom end thereof to the assembly portion.

The above objects and advantages of the present invention are not to be understood in detail from the detailed description and the accompanying drawings.

Please refer to FIG. 1 to FIG. 8 for the preferred embodiment selected for the present invention. This is for illustrative purposes only and is not limited by the embodiments.

As shown in Figures 1 and 2, an improved blower fan wheel structure is provided for the creation, having a disc-shaped fan wheel 2 and defining a first axial direction X parallel to the extending direction of the fan wheel 2, a second axial direction Y perpendicular to the first axial direction X and a third axial direction Z perpendicular to the first axial direction X and the second axial direction Y, and a flared outer periphery of the fan wheel 2 The assembly portion 25 is provided with a plurality of blades 1 arranged equidistantly along the circumference of the assembly portion 25, and in the embodiment, the fan wheel 2, the assembly portion 25 and each of the plurality of portions The blade 1 is integrally formed by a plastic material in an injection molding manner. The fan wheel 2 is recessed into a recessed peripheral surface 26 from the center thereof, and a motor is assembled at the center of the recessed peripheral surface 26 The driving portion 22 of the transmission shaft (not shown) drives the fan wheel 2 to perform a hurricane operation through the motor transmission shaft.

As shown in the second to fifth figures, each of the blades 1 has a long rectangular shape and has a top end 11 and a bottom end 12. When each of the blades 1 is looped on the set portion 25, each of the blades 1 The top end 11 and the bottom end 12 are respectively located at two sides of the assembly portion 25, and the distance E of each of the blades 1 from the top end 11 thereof to the assembly portion 25 is greater than the width of each of the blades 1 from the bottom end 12 thereof to the assembly portion At a distance F of 25, each of the blades 1 is integrally formed with a fixing ring 27 at its top end 11, thereby strengthening the structural strength of the top end 11 of each of the blades 1 to prevent the blades 1 from being generated when the fan wheel 2 is operated in a hurricane. Each of the two sides 15 has a first side 14 and a second side 15 opposite to the first side 14 , and the first side 14 and the second side 15 are respectively bent toward the same side. The cross-sections of the blades 1 are respectively curved in a curved shape at both ends; the first side 14 of each of the blades 1 is sequentially formed by the intermediate position of the fan wheel 2 toward the outer direction of the assembly portion 25. a first arcing section 141, a first pressing section 142 and a first outlet section 143, and the second side 15 of each of the blades 1 is in the middle of the fan wheel 2 A second arcing section, a second pressing section 152 and a second outlet section 153 are sequentially formed toward the outer direction of the assembly portion 25; and the blades 1 are matched with the sixth and seventh figures. A gas passage 19 is formed between the first side surface 14 and the second side surface 15 of the adjacent blade 1 , and the gas passage 19 corresponds to the first arc guiding segment 141 of each of the body 1 and the second adjacent body 1 . There is a first distance A between the arc guiding segments 151, a first pressing distance 142 between each of the first pressing portions 152 of the main body 1 and a second pressing portion 152 adjacent to the main body 1 , and each of the main bodies A first distance 143 between the first air outlet section 143 and the second air outlet section 153 adjacent to the body 1 has a third distance C, and the third distance C is greater than the first distance A, and the first distance A Greater than the second distance B, and when the flowing gas D passes through the gas passage 19, the gas D is reduced by the first distance A to the second distance B, and is increased from the second distance B to the first distance B The three-distance C is designed such that the gas D passes between the first arc-conducting section 141 of each of the blades 1 and the second arc-conducting section 151 adjacent to the body 1 to the first of the bodies 1 When the pressing section 142 is adjacent to the second pressing section 152 of the body 1, the pressure of the gas D can be effectively increased, and the first air outlet section 143 of each of the bodies 1 is adjacent to the body 1 The second air outlet section 153 quickly dissipates to the outside of the assembly portion 25.

As shown in the figures 8 and 9, each of the blades 11 is formed with a smooth arc-shaped flow guiding surface 113 at a position intermediate the top end 11 of the second side surface 15 toward the second side surface 15, and each of the blades 1 An inclined guide surface 132 inclined toward the intermediate position of the fan wheel 2 is formed at the bottom end 12 thereof, and the angle between the inclined guide surface 132 of each blade 1 and the outer peripheral edge of the corresponding blade 1 and the diversion of each of the blades 1 are formed. The angles θ1 and θ2 between the surface 113 and the outer circumference of the corresponding blade 1 are respectively less than 50 degrees, and when the fan wheel 2 performs the hurricane action, the surrounding gas D can pass through each of the flow guiding surfaces 113 and the respective oblique guides. The traction of the surface 132 generates a flow guiding action, so that the gas D collects along the second axial direction Y toward both sides of the fan wheel 2, and the arc-shaped design is transmitted through the flow guiding surface 113, thereby lifting the gas D. The flow rate from the second axial direction Y toward the fan wheel 2.

The utility model is composed of the above-mentioned structure. In actual use, as shown in FIG. 9, the fan wheel 2 through which each of the blades 1 is disposed is connected to the transmission shaft 23 of a motor 24 by the piercing portion 22 thereof. And driving the fan wheel 2 through the motor 24 to perform a hurricane action, and when the fan wheel 2 performs a hurricane action, the gas D around the fan wheel 2 is subjected to the flow guiding surface 113 of each of the blades 1 and The traction of the inclined guide surface 132 causes the gas D to flow in the direction of the second axial direction Y toward both sides of the fan wheel 2, and when the gas D is collected into the fan wheel 2, the gas D is subjected to each The first arc segment 141 of the blade 1 and the second arc segment 151 are guided to pass the gas D through the gas channel 19 along the first axis X, and when the gas D passes through the first of the blades When the pressurizing section 142 is adjacent to the second pressurizing section 152 of the vane 1, the gas D is reduced from the first distance A by the gas passage 19 to the second distance B, and thus the gas D is increased. The air pressure is then rapidly flowed between the first air outlet section 143 of each of the blades 1 and the second air outlet section 153 adjacent to the blade 1 to the outside of the fan wheel 2 D gas from escaping.

It can be seen from the foregoing description that the advantage of the present invention is that the distance of the gas passage 19 is changed, thereby increasing the gas flow in the first axial direction X, and the gas can increase the gas pressure when flowing through the gas. The utility model can effectively improve the efficiency of the gas escape efficiency; in addition, the creation can pass through the fixing ring 27 fixed to each blade 1 , whereby the fixing ring 27 can effectively avoid each when the gas flows between the blades 1 The blade sways to generate a resonance phenomenon, thereby maintaining the gas escape efficiency of the fan wheel 2 during the hurricane operation.

However, the above description of the embodiments is merely illustrative of the present invention and is not intended to limit the present invention. Therefore, the replacement of equivalent elements should still be within the scope of the present invention.

In summary, when it is clear that the person skilled in the art understands that the creation can achieve the aforementioned objectives, it has already complied with the provisions of the Patent Law, and therefore applied according to law.

1‧‧‧ leaves

11‧‧‧Top

113‧‧ ‧ diversion surface

12‧‧‧ bottom

132‧‧‧ oblique guide

14‧‧‧ first side

141‧‧‧First lead arc

142‧‧‧First pressurization section

143‧‧‧The first wind segment

15‧‧‧ second side

151‧‧‧Second arc segment

152‧‧‧Second pressure section

153‧‧‧Second outlet section

19‧‧‧ gas passage

2‧‧‧fan wheel

22‧‧‧ Department of Wear

23‧‧‧ drive shaft

24‧‧‧Motor

25‧‧‧Team

26‧‧‧ sunken surface

27‧‧‧Fixed ring

A‧‧‧first distance

B‧‧‧Second distance

C‧‧‧ third distance

D‧‧‧ gas

X‧‧‧first axial direction

Y‧‧‧second axial

Z‧‧‧third axial

Θ1, θ2‧‧‧ angle

The first picture is a schematic diagram of the three-dimensional structure of the creation. Figure 2 is a schematic diagram of the planar structure of the creation. Figure 3 is a three-dimensional exploded view of the creation. Figure 4 is a three-dimensional schematic view of the blade of the creation. Figure 5 is a schematic plan view of the blade of the creation. Figure 6 is a top plan view of the creation. Figure 7 is a partial enlarged view of the creation. Figure 8 is a schematic plan view of the blade of the creation. Figure 9 is a schematic view of the state of use of the creation to show the state of the fan wheel when it is mounted on the motor.

Claims (7)

The utility model relates to an improved structure of a blower fan wheel, which has a wheel and a plurality of joints formed on the periphery of the fan wheel, and a plurality of blades which are equidistantly spaced along the circumference thereof are arranged on the joint portion. The blade is respectively long rectangular and has a top end and a bottom end, and when each of the blade rings is disposed on the set portion, the top end and the bottom end of each of the blades are respectively located at the group a fixing ring is disposed between the top end of each of the blades and the assembly; each of the blades has a first side opposite to a first side opposite to the first side, and The cross-sections of the blades are respectively curved in a curved shape at both ends, so that the first side is sequentially formed with a first guiding arc segment from the middle position of the fan wheel toward the outer direction of the connecting portion. a pressing section and a first outlet section, and the second side is sequentially formed with a second guiding section, a second pressing section and a second direction from an intermediate position of the fan wheel toward an outer direction of the assembly portion a second outlet section; each of the blades facing the middle position at the top of the second side thereof A flow guiding surface is formed obliquely, and an inclined guiding surface inclined toward an intermediate position of the fan wheel is formed at a bottom end of each of the blades. The improved blower fan wheel structure of claim 1, wherein an angle between each of the inclined guide surfaces and the corresponding outer peripheral edge of the blade and an angle between each of the flow guiding surfaces and the corresponding outer peripheral edge of the blade are less than 50 degrees. The improved blower fan wheel structure of claim 1, wherein each of the blades is integrally formed on the set of joints. The blower fan wheel improved structure according to claim 1, wherein the center of the fan wheel is recessed to form a concave peripheral surface, and a threading portion of the motor transmission shaft is disposed at a center of the concave peripheral surface. . The blower fan wheel modification structure of claim 3, wherein each of the blades has a distance from a top end thereof to the assembly portion that is greater than a distance of each of the blades from a bottom end thereof to the assembly portion. The blower fan wheel improved structure of claim 3, wherein a gas passage is formed between each of the blades and an adjacent blade thereof, the gas passage corresponding to the first arc segment of each blade and the second adjacent blade a first distance between the arc guiding segments, a first pressing distance between each of the first pressing segments of the blade and a second pressing segment adjacent to the blade, and the first wind segment of each blade adjacent to the blade The third air outlet section of the blade has a third distance, and the third distance is greater than the first distance, and the first distance is greater than the second distance. The blower fan wheel improved structure of claim 1, wherein each of the blades has a distance from a top end thereof to the assembly portion that is greater than a distance of each of the blades from a bottom end thereof to the assembly portion.