TWI638100B - Impeller blade structure and rotor assembly using same - Google Patents

Abstract

The present invention is a blade structure and a rotor assembly thereof, comprising: a body having a first through hole communicating with a first side and a second side, the first side having a plurality of blades, the blades having a a first end and a second end, the first ends are adjacent or not adjacent to the outer edge of the first through hole, the blades have a plurality of first joints, and the blades have a first side, a second side and a third side, the first side and the second side extending from the second end toward the first through hole, the third side being connected to the first side and the second side at the first end The virtual line is tangent to a portion of the second side that contacts the outer edge of the body to form an angle with the second side, and a channel is defined between each of the blades; and the fan is effectively reduced by the design of the present invention. Leaf noise and the effect of increasing the life of the blade.

Description

Fan blade structure and rotor group

The present invention relates to a blade structure and a rotor set thereof, and more particularly to a blade structure and a rotor set thereof which can reduce noise and increase service life.

According to the prior art, the pump has a chamber, and the chamber defines two through holes, and the chamber communicates with the outside through the two through holes to allow a fluid to enter or exit the chamber through the through holes. An impeller is a rotating assembly disposed in the chamber, and a centrifugal force and a pressure change generated by the rotation of the impeller to draw fluid into the chamber through one of the through holes and to discharge the fluid through the other through hole. Thereby, the purpose of pumping the fluid can be achieved.

However, since the blade on the impeller is a sheet-like body, in order to avoid interference between the blade tip and the inner wall of the chamber at the adjacent sides, the end of the blade has a sharply sharpened thickness, and the blade end When the sharp shape is easy to cause the end of the blade to withstand the relative force of the fluid, the chattering phenomenon occurs and the running noise is generated, and the chattering at the end of the blade easily causes local thermal stress at the end of the blade and accelerates the material fatigue at the end of the blade. , affecting the service life of the fan blade.

Therefore, how to solve the above problems and problems in the past, that is, the inventors of this case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, it is an object of the present invention to provide a blade structure and a rotor set thereof which can reduce chattering at the end of a blade, thereby reducing noise and increasing service life.

To achieve the above objective, the present invention provides a blade structure including: a body having a first side and a second side and a first through hole, the first through hole communicating with the first and second sides, the first a plurality of blades on one side, the blades having a first end and a second end, the first ends being adjacent or not adjacent to the outer edge of the first through hole, the blades respectively having a first a joint portion, wherein the blades have a first side, a second side and a third side in a linear state, and the first and second sides are spaced apart from the second end toward the first through hole Extending, the third side is coupled to the first end and the two sides to define a top surface of the blade, the outer edge of the body has a virtual line, and the virtual line contacts the outer edge of the body with the second side The portion is tangent, and the imaginary line forms an angle with the second side, and each of the blades defines a channel therebetween, the channels form a narrow flow path with respect to the first and third sides, and the channels Forming a diverging flow channel relative to the first and second sides, wherein the first and third sides of the adjacent narrow flow channel are parallel to each other, and the narrow flow channel is provided for a cold By increasing the flow rate and the fluid.

In order to achieve the above object, the present invention further provides a rotor assembly comprising: a blade structure, comprising: a body having a first side and a second side and a first through hole, wherein the first through hole communicates with the first On the two sides, the first side has a plurality of blades, the blades have a first end and a second end, and the first ends are adjacent or not adjacent to the outer edge of the first through hole, The fan blades respectively have a first joint portion, and the blades have a linear aspect, a first side, a second side and a third side, and the first and second sides are spaced apart from each other from the second end to the The first through hole extends in a direction, the third side is connected to the first end and the two sides to jointly define a blade top surface, the outer edge of the body has a virtual line, and the virtual line is in contact with the second side a portion of the outer edge of the body is tangent, and the virtual line forms an angle with the second side, and each of the blades defines a channel therebetween, and the channels form a narrow flow path with respect to the first and third sides And the channels form a diverging flow path with respect to the first and second sides, wherein the first and third sides of the adjacent narrow flow channels are parallel to each other The narrow flow path for a cooling fluid and by increasing the flow rate; and a rotor structure, comprising: a main body portion, The third side has a plurality of second joint portions, the third side portion correspondingly facing the first side, and the first joint portions are correspondingly coupled to the second joint portions .

With the design of the present invention, the fan blade structure of the present invention and the ends of the blades of the rotor group do not generate chattering and local thermal stress, thereby achieving the effects of reducing noise and increasing the service life of the blade structure. .

10‧‧‧Fan leaf structure

110‧‧‧ body

111‧‧‧ first side

112‧‧‧ second side

113‧‧‧First through hole

120‧‧‧ fan leaves

121‧‧‧ first end

122‧‧‧ second end

123‧‧‧ first joint

124‧‧‧ first side

125‧‧‧ second side

126‧‧‧ third side

127‧‧‧Face leaf top

128‧‧‧Short diversion surface

129‧‧‧Long diversion surface

130‧‧‧ channel

131‧‧‧Narrow runner

132‧‧‧Expanded runner

20‧‧‧Virtual line

30‧‧‧Rotor structure

310‧‧‧ Main body

311‧‧‧ third side

312‧‧‧ fourth side

313‧‧‧Second junction

40‧‧‧Rotor group

The following drawings are intended to provide a more complete understanding of the invention, and are in the The specific embodiments of the present invention are described in detail by reference to the specific embodiments herein,

1 is a perspective view of a first embodiment of a blade structure of the present invention; FIG. 2 is a plan view of a first embodiment of the blade structure of the present invention; and FIG. 3 is a second embodiment of the blade structure of the present invention. 3 is a plan view of a second embodiment of the blade structure of the present invention; FIG. 5 is a perspective view of a third embodiment of the blade structure of the present invention; and FIG. 6 is a blade structure of the present invention. 3 is a perspective exploded view of a first embodiment of a rotor set of the present invention; and FIG. 8 is a perspective assembled view of a first embodiment of the rotor set of the present invention; 3 is an exploded perspective view of an alternative embodiment of the first embodiment of the rotor set of the present invention; FIG. 10 is a perspective assembled view of an alternative embodiment of the first embodiment of the rotor set of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 12 is a perspective exploded view of an alternative embodiment of a first embodiment of a rotor assembly of the present invention; and FIG. 13 is a first embodiment of a rotor assembly of the present invention. An alternative exploded perspective view of an alternative embodiment; Figure 14 is a perspective assembled view of an alternative embodiment of the first embodiment of the rotor assembly 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.

1 and 2 are a perspective view and a plan view of a first embodiment of a blade structure according to the present invention. As shown in the figure, the blade structure 10 of the present invention includes a body 110, in this embodiment. The blade structure 10 is shown as being applied to a pumping chamber (not shown) of a water-cooling heat dissipation module, but is not limited thereto. In other embodiments, the blade structure 10 can also be applied. In other types of pumping chambers, the present invention does not limit the application of the blade structure 10.

The body 110 has a first side 111 and a second side 112 and a first through hole 113. The first side 111 is located on the upper side of the body 110, and the second side 112 is located on the lower side of the body 110. The first through hole 113 communicates with the first and second sides 111 and 112. The first side 111 has a plurality of blades 120 disposed around the first through hole 113. The first end 121 and the second end 122 are adjacent to each other. In the embodiment, the first end 121 is adjacent to the outer edge of the first through hole 113.

Each of the blades 120 has a first joint portion 123. In the embodiment, the first joint portion 123 is located at the second end 122 of each of the blades 120, but is not limited thereto. In the example, the first joints 123 are disposed at other suitable positions of the blades 120. In the embodiment, the first joint portion 123 is represented as a groove. The first joint portion 123 is coupled to a rotor (not shown) to simultaneously rotate the blade structure 10 when the rotor rotates.

The fan blades 120 have a first side 124, a second side 125 and a third side 126 in a straight line. The first and second sides 124 and 125 are spaced apart from each other from the second end 122 to the first side. a through hole 113 extending in the direction of the first side 121 connected to the first and second sides 124, 125 to define a blade top surface 127. The outer edge of the body 110 has a virtual line 20, and the virtual line 20 is tangent to the portion 201 where the second side 125 contacts the outer edge of the body 110.

The imaginary line 20 forms an angle X with the second side 125, and in the present embodiment, the angle X is a 75 degree angle. The imaginary line 20 is a virtual line, not a physical component or structure of the blade structure 10, which is designed to facilitate the user to measure the angle formed by the imaginary line 20 and the second side 125. In the present embodiment, the blades 120 are respectively a block, and the first end 121 of the block has a short flow guiding surface 128 opposite to the third side 126, and the second end 122 of the block is opposite. The second side 125 has a long flow guiding surface 129.

A channel 130 is defined between each of the blades 120, and the channels 130 communicate with the first through holes 113. The channels 130 form a narrow channel 131 with respect to the first side 124 and the third side 126. The narrow channel 131 has a narrower plane, and the channels 130 form a diverging channel 132 with respect to the first side 124 and the second side 125, wherein the first and third sides 124, 126 of the adjacent narrow channel are mutually In parallel, the bottom of the diverging flow channel 132 is a diverging plane outward from the first through hole 113. In the pumping chamber of the water-cooling heat dissipation module, a cooling fluid (not shown) can flow from the first through hole 113, and centrifugal force generated by the rotation of the blade structure 10 is between the blades 120 The channel 130 flows out.

When the blade structure 10 rotates in the pumping chamber of the water-cooling heat dissipation module, the cooling flow system first flows from the first through hole 113 through the narrow flow path 131, and then flows from the narrow flow path 131. Through the diverging flow channel 132, the cooling fluid has a relatively fast flow rate in the narrow flow channel 131. When the cooling fluid enters the diverging flow channel 132, the cooling fluid can be decelerated and pressurized, and the cooling fluid can be surely Discharging to the outside of the blade structure 10, and at the same time, the pressure in the pumping chamber of the water-cooling heat-dissipating module becomes smaller, generating a suction force to the cooling fluid at the first through-hole 113, and the outside of the first through-hole 113 The cooling fluid is drawn in, thereby continuing the circulation of the cooling fluid.

In addition, since the blades 120 are respectively blocks, when the blade structure 10 rotates, the second end 122 of the blades 120 does not generate chattering and local thermal stress, thereby reducing noise and increasing The service life of the blade structure 10.

Please refer to Figures 3 and 4, which are perspective views and top views of a second embodiment of the structure of the fan industry of the present invention, and with reference to Figures 1 and 2, as shown, some of the structures and functions of the present embodiment are as described above. The first embodiment is the same, and therefore will not be described here. However, the difference between the first embodiment and the first embodiment is that the first ends 121 of the blades 120 are not connected to the first through holes 113. The outer edge, and the virtual line 20 forms an angle Y with the second side 125, and in the embodiment, the angle Y is 60 degrees.

Thereby, the same effect as the first embodiment of the fan structure of the present invention can be achieved.

Please refer to FIGS. 5 and 6 for a perspective view of a third embodiment of the structure of the fan industry of the present invention, and with reference to FIGS. 1 to 4, as shown in the figure, a part of the structure and function of the present embodiment and the first The second embodiment is the same, and therefore will not be described again here. However, the difference between the first embodiment and the second embodiment is that the first joint portions 123 of the blades 120 are represented as a convex portion. body.

Thereby, the same effects as those of the first and second embodiments of the fan structure of the present invention can be achieved.

Please refer to Figures 7, 8, 9 and 10 for the perspective view of the first embodiment of the rotor set of the present invention, a perspective exploded view of the first embodiment, and a perspective exploded view of an alternative embodiment and a three-dimensional combined view of an alternative embodiment. Referring to Figures 1 to 4, as shown, the rotor assembly 40 of the present invention comprises a blade structure 10 and a rotor structure 30. In the present embodiment, the rotor assembly 40 is shown as being applied to the foregoing. In the pumping chamber (not shown) of the water-cooling heat dissipation module of the first embodiment of the blade structure of the present invention, but not limited thereto, the rotor group 40 can be applied to other types in other embodiments. In the pumping chamber, the invention does not limit the application of the rotor set 40.

The structure and the function of the blade structure 10 of the present embodiment are the same as those of the first and second embodiments of the blade structure of the present invention. Therefore, the fan will not be described in this embodiment. The structure and efficacy of the leaf structure 10. The rotor structure 30 has a main body portion 310. In the embodiment, the rotor structure 30 can be coupled with a certain subgroup (not shown) for induction excitation rotation. The main body portion 310 has a third side 311 and a fourth side 312 opposite to the fourth side 312, and the third side of the main body portion 310 311 is corresponding to the first side 111 of the body 110. The third side 311 has a plurality of second joints 313 , and the first joints 123 of the body 110 are combined with the second joints 313 of the rotor 310 .

In the first and second embodiments of the blade structure of the present invention, the first joints 123 are located at the second end 122 of each of the blades 120. Therefore, in the embodiment, the second joints 123 are It is located on the third side 311 corresponding to the position of the first joint portion 123. In the first embodiment of the blade structure of the present invention, the first joint portion 123 is represented as a groove. Therefore, in the embodiment, each of the second joint portions 313 is formed as a convex body. The grooves of the first joint portion 123 and the convex portions of the second joint portions 313 are correspondingly combined, and of course, the grooves and the convex body structure may be oppositely arranged correspondingly (as shown in FIGS. 11-14).

In this embodiment, the first joint portion 123 and the second joint portion 313 can be combined by riveting, tight fitting, bonding, and magnetic attraction, and the present invention is not the first joint portion. The manner in which 123 is combined with the second joint portions 313 is limited.

When the stator assembly (not shown) is energized, the induced excitation is converted into mechanical kinetic energy with the rotor assembly 40, and the rotor assembly is driven by mechanical kinetic energy, and because the rotor structure 30 and the blade structure 10 are coupled to each other, The rotor structure 30 is simultaneously rotatable by the blade structure 10, and the cooling fluid can flow out of the passage 130 between the blades 120 of the blade structure 10 by the centrifugal force generated by the rotation of the blade structure 10. Moreover, since the blades 120 are respectively blocks, when the blade structure 10 is rotated, the same effects as those of the first and second embodiments of the blade structure of the present invention can be achieved.

Therefore, the fan blade structure 10 of the present invention and the second end 122 of the fan blades 120 of the rotor group 40 do not generate chattering and local thermal stress, thereby reducing noise and increasing the blade structure. The efficacy of the lifespan.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

Claims (16)

A fan blade structure includes: a body having a first side and a second side and a first through hole, wherein the first through hole communicates with the first and second sides, and the first side has a plurality of blades The blades have a first end and a second end, the first ends are adjacent or not adjacent to the outer edge of the first through hole, and the blades respectively have a first joint, and the fans The leaf has a first side, a second side and a third side in a linear state, and the first and second sides are spaced apart from each other from the second end toward the first through hole, wherein the third side is The first end is connected to the first and the two sides to jointly define a blade top surface, and the outer edge has a virtual line, and the virtual line is tangent to a portion of the second edge contacting the outer edge of the body, and the virtual line The line forms an angle with the second side, and each of the blades defines a channel therebetween, the channels form a narrow flow path with respect to the first and third sides, and the channels form opposite to the first and second sides A diverging flow passage, wherein the first and third sides of the adjacent narrow flow passages are parallel to each other, the narrow flow passage for a cooling fluid to pass through and increase the flow rate thereof. The blade structure of claim 1, wherein the first end of the blade is adjacent to the outer edge of the first through hole; the angle formed by the virtual line and the second side is 75 degrees. The blade structure according to claim 1, wherein the first end of the blade is not adjacent to the outer edge of the first through hole; the angle formed by the virtual line and the second side is 60 degrees. . The blade structure of claim 1, wherein the passage communicates with the first through hole. The fan blade structure according to claim 1, wherein the fan blade system is a block body, and the block body has a short flow guiding surface at the first end opposite to the third side, and the block body The second end has a long flow guiding surface opposite the second side. The blade structure of claim 1, wherein the first joint is located at a second end of each blade. The fan blade structure according to claim 1, wherein the first joint portion is any one of a groove and a protrusion. A rotor assembly includes: a blade structure, comprising: a body having a first side and a second side and a first through hole, the first through hole communicating with the first and second sides, the first side Having a plurality of blades, the blades having a first end and a second end, the first ends being adjacent or not adjacent to the outer edge of the first through hole, the blades respectively having a first combination a first side, a second side, and a third side, wherein the first and second sides are spaced apart from each other and extend from the second end toward the first through hole. The third side is connected to the first end and the two sides to define a top surface of the blade. The outer edge of the body has a virtual line, and the virtual line and the second side contact the outer edge of the body. Tangent, and the imaginary line forms an angle with the second side, and each of the blades defines a channel therebetween, the channels form a narrow flow path with respect to the first and third sides, and the channels are opposite to the The first and the second sides form a divergent flow channel, wherein the first and third sides of the adjacent narrow flow channels are parallel to each other, and the narrow flow channel is provided with a cooling fluid passage And increasing the flow rate thereof; and a rotor structure comprising: a main body portion having a third side and a fourth side, the third side having a plurality of second joint portions, the third side portion corresponding to the first side The first bonding portions are correspondingly coupled to the second bonding portions. The rotor set of claim 8, wherein the first end of the blade is adjacent to the outer edge of the first through hole; the angle formed by the virtual line and the second side is 75 degrees. The rotor set of claim 8, wherein the first end of the blade is not adjacent to the outer edge of the first through hole; the angle formed by the virtual line and the second side is a 60 degree angle . The rotor set of claim 8, wherein the passage communicates with the first through hole. The rotor set according to claim 8, wherein each of the blade systems is a block body, and the block body has a short flow guiding surface at the first end opposite to the third side, and the block The body has a long flow guiding surface at the second end opposite to the second side. The rotor assembly of claim 8, wherein the first joint portion is located at a second end of each blade, and the second joint portion is located on the third side corresponding to the first joint. The location of the department. The rotor assembly of claim 13, wherein each of the first joint portions is formed as a groove, and each of the second joint portions is formed as a convex body, and the groove and the convex body are combined . The rotor assembly of claim 13, wherein each of the first joint portions is formed as a convex body, and each of the second joint portions is formed as a groove, and the convex body and the groove are correspondingly combined. . The rotor assembly of claim 8, wherein the first joint portion and the second joint portion are combined by riveting, tight fitting, bonding, and magnetic attraction.