CN101666326B - Combined impeller - Google Patents

Abstract

The invention discloses a combined impeller, which is characterized in that at least one impeller is assembled on an annular seat body; the annular seat body is provided with a flow guide surface, at least one group of annular hole groups is also arranged on the annular seat body, each annular hole group comprises a plurality of concave clamping grooves and a concave annular hole, and each clamping groove is communicated with the annular hole and the flow guide surface; the impeller is provided with a ring body which is embedded in a ring body hole of the ring-shaped base body, a plurality of blades are surrounded around the ring body, a reinforcing sheet for connecting the ring body and the blades is arranged between the inner edge of each blade and the periphery of the ring body, the reinforcing sheet is correspondingly embedded in the clamping groove, the inner edges of the blades are the same as and matched with the flow guide surface in shape, and an interval formed between two adjacent blades and the ring-shaped base body is an air duct; the design can eliminate the weak area formed between the ring body and the blades, so that the impeller is not easy to deform and the precise positioning combination between the impeller and the ring-shaped seat body is facilitated.

Description

Combined impeller

technical field

The invention relates to a combined impeller, in particular to a combined impeller which overcomes the interference of mold release by using a combined method, increases the strength of the impeller component, prevents deformation, and precisely positions to improve product quality.

Background technique

Please refer to Chinese Patent No. ZL01268180.6 "Combined Cooling Fan" for existing cooling fans (please refer to Figure 11). The combined cooling fan 4 includes a lower fan body 41 and an upper fan body 42. It has a body 411 whose top surface protrudes into a cone shape. A sleeve shaft 412 protrudes from the center of the top surface of the body 411. A plurality of lower blades 413 protrude from the outer periphery of the body 411. The top surface of the body 411 extends from the periphery of the sleeve shaft 412 to There are a number of locking slots 414 corresponding to the lower blades 413 extending outward, and the outer ports of the locking slots 414 are aligned with the lower blades 413; the upper fan body 42 has a flat collar 421, and the center of the collar 421 is provided with a sleeve The hole 422 is sleeved on the sleeve shaft 412 of the lower fan body 41, and the periphery of the collar 421 is extended with upper blades 423 corresponding to the number of the lower blades 413. In a continuous shape, the root of the upper blade 423 is provided with a locking bar 424 , and the locking bar 424 is inserted into the locking groove 414 of the lower fan body 41 to be fixed.

However, this kind of combined heat dissipation fan 4, because the upper blade 423 has an excess length corresponding to the section length of the guide surface 415, the strength of the upper blade 423 is too long because of the lack of strength. However, because the locking bar 424 is set corresponding to the taper of the conical body 411 and the radian of the inner edge of the upper blade 423, the inner edge structure of the upper blade 423 is gradually lower from the middle height to the outer periphery, and therefore makes A fragile area W is formed between the inner edge of the upper blade 423 and the collar 421 , which is easily deformed, and also affects the precise positioning and firmness of the upper fan body 42 and the lower fan body 41 .

In addition, please refer to FIG. 12, which is a centrifugal cooling fan 6, which includes a sloped body 61 and an upper impeller 62, wherein the sloped body 61 is provided with a protruding conical guide surface 611 The center of the guide surface 611 is provided with a circular plane 612, and the upper impeller 62 has a ring body 621 corresponding to the circular plane 612, and several upper blades 622 are arranged on the outer periphery of the ring body 621, and the upper blades 622 of the several blades have corresponding guides. Inner edge 6221 of face 611 shape.

However, although the design of this cooling fan has a centrifugal effect to increase the wind pressure, the inner edge of the upper blade 622 is designed to correspond to the guide surface, so that the inner edge structure of the upper blade 622 is gradually lower from the middle to the outer periphery. , resulting in a fragile section W between the inner edge of the upper blade 622 and the ring body 621, and the upper blade 622 and the ring body 621 are only connected to each other in a small area, so that the strength is insufficient, and it is easy to deform, and it is difficult to make accurate and firm positioning.

Therefore, how to design a heat dissipation fan that can be easily and accurately manufactured to save cost on the premise of increasing heat dissipation performance is an important issue to be solved in the technical field.

Contents of the invention

The purpose of the present invention is to provide a combined impeller structure, especially one that can overcome the shortcomings of the above-mentioned existing combined cooling fan, increase the strength of the components such as the manufactured impeller and the annular seat body and are not easily deformed, and then can be easily and accurately The positioning and combination of the combined impeller.

In order to achieve the above object, the present invention provides a combined impeller, which is provided with at least one impeller on an annular seat; wherein, the annular seat is provided with at least one group of recessed ring hole groups, and the recessed ring The body hole group includes a plurality of recessed card slots and a recessed ring body hole, and each card slot communicates with the ring body hole and the flow guide surface; the impeller has a ring body hole embedded in the annular seat Among them, the ring body is surrounded by several blades, and a reinforcement piece connecting the ring body and the blade is provided between the inner edge of the blade and the outer periphery of the ring body, and the reinforcement piece is correspondingly embedded in the card slot, and The shape of the inner edge of the vane is the same as that of the above-mentioned guide surface and cooperates, and the section formed between two adjacent vanes and the annular seat is an air duct.

In the combined impeller of the present invention, the outer circumference of the hub of the annular base body is further provided with lower blades. And the blades of the annular base body are docked with the blades of the impeller to form a complete blade. Or further, the outer end of the blade of the annular seat body is provided with a protruding section upward, so that the inner side of the blade of the annular seat body is opposite to form a recessed area, and the recessed area is for the blade of the impeller to dock with it to form a complete blade. Or further make the blade of the annular base body be located at the trailing edge of the air duct formed between the two blades of the impeller, so that the blade of the annular base body becomes a booster blade.

In the combined impeller of the present invention, the top surface of the ring body of the impeller is lower than the highest point of the top edge of the blade, and the top surface of the ring body of the impeller is connected to the top edge of the blade and the guide surface of the annular seat body. Designed according to the flow field.

The present invention also provides a combined impeller, comprising:

An inclined plane, which has a diversion surface and at least one ring body hole group, the ring body hole group includes a plurality of recessed card slots and a recessed ring body hole, each card slot of the ring body hole group communicates Ring body hole and diversion surface;

At least one impeller, which has a ring body arranged in the ring body hole of the inclined plane body, and several blades are arranged around the periphery of the ring body, and each blade corresponds to the slot of the above-mentioned ring body hole group, the blades A reinforcement sheet connecting the ring body and the blade is provided between the inner edge of the ring body and the outer circumference of the ring body, and the reinforcement sheet is correspondingly embedded in the slot of the above-mentioned ring body hole group, and the bottom edge of the blade and the The above-mentioned guide surfaces have the same shape and fit together.

The advantages of this structural design are: the weak zone formed between the ring body and the blade can be eliminated by the reinforcing piece, and it is more conducive to the precise positioning and firm assembly between the impeller and the ring seat.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the combined impeller of the first preferred embodiment of the present invention;

Fig. 2 is the assembly diagram of the combined impeller of the first preferred embodiment of the present invention;

Fig. 3 is a three-dimensional exploded view of a combined impeller according to a second preferred embodiment of the present invention;

Fig. 4 is a side exploded view of the combined impeller of the third preferred embodiment of the present invention;

Fig. 5 is a side exploded view of the combined impeller of the fourth preferred embodiment of the present invention;

Fig. 6 is a three-dimensional assembled view of the combined impeller of the fifth preferred embodiment of the present invention;

Fig. 7 is a three-dimensional exploded view of a combined impeller according to a sixth preferred embodiment of the present invention;

Fig. 8 is a side view combined view of the combined impeller of the sixth preferred embodiment of the present invention;

Fig. 9 is a three-dimensional exploded view of the combined impeller of the seventh preferred embodiment of the present invention;

Fig. 10 is a side exploded view of the combined impeller according to the eighth preferred embodiment of the present invention;

Figure 11 is a three-dimensional exploded view of the Chinese patent number ZL01268180.6 combined cooling fan;

Fig. 12 is a three-dimensional exploded view of a traditional combined cooling fan.

Explanation of main component labels:

this invention:

1 Combined impeller 11 Annular seat

111 wheel hub 112 guide surface

113 Ring body hole group 1131 Card slot

1132 ring body hole 114 booster vane

115 Blade 1151 Protruding section

1152 concave area 12 impeller

121 Ring body 1211 Periphery

1212 top surface 122 blade

1221 inner edge 1222 top edge

123 Reinforcing piece 3 3 Combined impeller

31 Inclined body 311 Diversion surface

312 Ring body hole group 3121 Card slot

3122 ring body hole 32 impeller

321 Ring body 3211 Periphery

322 Blade 3221 Inner edge

323 Reinforcing sheet θ included angle

H Horizontal line 4 Combined impeller

41 Ring seat body 411 Wheel hub

412 diversion surface 413 ring body hole group

4131 card slot 4132 ring body hole

42 impeller 421 ring body

4211 Perimeter 422 Blade

4221 Inner edge 423 Reinforcement sheet

current technology:

4 Cooling fan 41 Lower fan body

411 Body 412 Shaft

413 Lower blade 414 Locking groove

42 Upper fan body 421 Collar

422 Set hole 423 Upper blade

424 Buckle bar 415 Diversion surface

W Fragile Zone 5 Cooling Fan

51 Axial flow fan 511 Round bump

512 fan blade 52 centrifugal fan

523 Blade 522 Cylinder

521 dome body 6 cooling fan

61 Inclined body 611 Diversion surface

612 Round plane 62 Upper impeller

621 ring body 622 upper blade

6221 inner edge

Detailed ways

Please refer to Fig. 1 and Fig. 2, which is the first preferred embodiment of the combined impeller of the present invention; the combined impeller 1 includes: an annular seat 11 and an impeller 12; wherein:

The annular seat body 11 has a hub 111, the hub 111 is provided with an arc-shaped diversion surface 112, and a ring body hole group 113 is arranged on the annular seat body 11, and the ring body hole group 113 includes a plurality of concave holes. The card groove 1131 and a recessed ring body hole 1132, and each card groove 1131 communicates with the ring body hole 1132 and the flow guide surface 112; in addition, the annular seat 11 can further be provided with several booster blades at the periphery 114 (please refer to Fig. 6), each booster vane 114 is positioned in the trailing edge of the air duct between two adjacent blades 122 of the impeller 12;

There is a ring body 121 embedded in the ring body hole 1132 of the ring body 11 in the middle of the impeller 12, and several blades 122 are arranged on the outer periphery 1211 of the ring body 121, and are connected with the slots 1131 of the ring body 11. Correspondingly, a section is formed between the inner edge 1221 of the blade 122 and the outer periphery 1211 of the ring body 121, and a reinforcing piece 123 is arranged in this section, and the reinforcing piece 123 is connected to the ring body 121 and the blade 122 between, and correspondingly embedded in the slot 1131 of the annular seat 11, so that the annular seat 11 and the impeller 12 are assembled and positioned correspondingly, and the inner edge 1221 of the blade 122 corresponds to the shape of the guide surface 112 of the annular seat 11 And cooperate, and make the interval formed between two adjacent blades 122 and the annular base 11 be the air duct.

Please refer to FIG. 3 , which is a second preferred embodiment of the combined impeller of the present invention; the difference between the combined impeller 1 and the combined impeller 1 of a preferred embodiment is that the annular seat 11 has a hub 111 around it. There are several blades 115, the number of the blades 115 corresponds to the number of the slots 1131 of the annular seat 11; and the blades 115 are docked with the blades 122 of the impeller 12 to form a complete blade.

Please refer to Fig. 4, which is the third preferred embodiment of the combined impeller of the present invention; the difference between the combined impeller 1 and the combined impeller 1 of the second preferred embodiment is that the blades 115 of the annular seat 11 are close to One end of the outer side extends outwards and upwards to form an extended protruding section 1151, and a recessed area 1152 is formed at the inner upper edge of the blade 115 opposite to the extended protruding section 1151. , the blades 122, 115 at the upper and lower positions of the arrangement are docked to form a complete blade.

Please refer to Fig. 5, which is the fourth preferred embodiment of the present invention. The difference between the combined impeller 1 of the fourth preferred embodiment and the second preferred embodiment is mainly: the ring of the impeller 12 The top surface 1212 of the body 121 is lower than the highest point of the top edge 1222 of the blade 122, and the top surface 1212 of the ring body 121 of the impeller 12, the top edge 1222 of the blade 122 and the guide surface 112 of the annular seat 11 are designed according to the flow field .

Please refer to FIG. 6 , which is the fifth preferred embodiment of the present invention, which mainly provides booster blades 114 in the trailing edge of the air duct between adjacent blades 115 of the annular seat 11 .

Referring to Fig. 7 and Fig. 8 again, it is the sixth preferred embodiment of the present invention, the combined impeller 3 belongs to a fan with centrifugal effect, and the combined impeller 3 includes a bevel 31 and an impeller 32; wherein :

The slope body 31 is provided with a diversion surface 311 in a concave arc shape, and a ring body hole group 312 is provided on the slope body 31, and the ring body hole group 312 includes a plurality of recessed card slots 3121 and a recessed Ring body hole 3122, each slot 3121 of the ring body hole group 312 communicates with the ring body hole 3122 and the flow guide surface 311;

There is a ring body 321 in the middle of the impeller 32, and the ring body 321 has an outer circumference 3211, and several blades 322 are arranged around the outer circumference 3211. The inner edge 3221 of the blade 322 is in the shape of the middle height gradually lowering outward, and therefore forms a section with the outer periphery 3211 of the ring body 321, and a reinforcing piece 323 is arranged in this section, and the reinforcing piece 323 is connected. Between the ring body 321 and the upper blade 322, the reinforcing piece 323 is correspondingly embedded in the slot 3121 of the inclined plane body 31, and the ring body 321 is arranged in the ring body hole 3122 of the inclined plane body 31, so that the The impeller 32 and the inclined plane body 31 are correspondingly assembled and positioned, and the inner edge 3221 of the blade 322 corresponds to the shape of the guide surface 311 of the inclined plane body 31 and matches, and the interval formed between the adjacent two blades 322 and the inclined plane body 31 is air duct.

In this embodiment, the bottom edge of the reinforcement piece 323 can be further designed to have an angle θ with the horizontal line H extending from the bottom edge of the ring body 321 (please refer to FIG. 8 again), so as to increase the reinforcement The sheet 323 reinforces the structural strength of the section.

The seventh preferred embodiment of the combined impeller 4 of the present invention comprises: an annular base body 41, at least one impeller 42; The combined impeller 4 composed of the annular seat body 41 will be explained, and please refer to FIG. 9 for reference.

The annular seat body 41 has a hub 411, on which a conical guide surface 412 and a ring body hole group 413 corresponding to the number of impellers 42 are provided, and the ring body hole group 413 includes a plurality of recessed clamping grooves 4131 And a recessed ring body hole 4132, each slot 4131 of the ring body hole group 413 communicates with the ring body hole 4132 and the flow guide surface 412;

There is a ring body 421 in the middle of the impeller 42, and several blades 422 are arranged on the outer periphery 4211 of the ring body 421, and correspond to the slots 4131 of the annular base body 41, and the inner edge 4221 of the blade 422 is in contact with the ring body 421. A section is formed between the outer circumferences 4211 of the ring body, and a reinforcing piece 423 is arranged in this section, and the reinforcing piece 423 is connected between the ring body 421 and the blade 422, and the ring body 421 is arranged on the annular seat body 41 In the ring body hole 4132, the inner edge 4221 of the vane 422 corresponds to the shape of the guide surface 412 of the annular seat 41 and matches, and the reinforcing piece 423 is correspondingly embedded in the slot 4131 of the annular seat 41, so as to The impeller 42 is correspondingly assembled and positioned on the annular seat 41 , and the section formed between two adjacent blades 422 and the annular seat 41 is an air duct.

The combined impeller 4 of this embodiment can further make the blades 422 of the two upper and lower impellers 42 docked to form a complete blade. Or further make the vane 422 of the impeller 42 below the position as the vane 115 of the annular seat 11 of Fig. 4, that is, a protruding section 1151 is provided upwards at its outer end, so that the inner side of the vane 115 is relatively formed with a recessed area 1152, In this embodiment, the blade 422 of the upper impeller 42 is connected with the blade 422 to form a complete blade. Or further make the blade 422 of the impeller 42 located below be located at the trailing edge of the air duct formed between the two blades 422 of the upper impeller 42, so that the blade 422 of the lower impeller 42 becomes a booster blade (please refer to Figure 10). In addition, the combined impeller 4 can further make the top surface of the ring body 421 of the upper impeller 42 lower than the highest point of the top edge of the blade 422, and the top surface of the ring body 421 of the impeller 42 and the top surface of the blade 422 The edge and the guide surface 412 of the annular seat 41 are designed according to the flow field.

In addition, the annular seat 41 of this embodiment can be in the shape of the annular seat 11 shown in FIG. 1 , or in the shape of a cone as shown in FIG. 7 .

Through the detailed description of the above-mentioned structural features, it can be clearly seen that the characteristics of the design of the present invention are:

1. The inner edge of the upper blade of the upper impeller and the outer circumference of the ring are connected with a reinforcing sheet, which can increase the strength of the upper blade and prevent the deformation of the upper impeller during and after injection.

2. Because the upper impeller will not be deformed, and the matching of the reinforcing plate and the card slot also makes it easy to accurately position and assemble the upper impeller on the lower impeller, which is conducive to the balance of rotation.

Claims (14)

1. a combination type blade wheel is characterized in that, described combination type blade wheel includes:

One annular base body, it has wheel hub, and this wheel hub is provided with guide face, and this annular base body also is provided with at least one group of ring body hole group, and this ring body hole group comprises the ring body hole that most the draw-in grooves and that are arranged with are arranged with, and each draw-in groove is communicated with this ring body hole and this guide face; And

At least one impeller, it has ring body, correspondence is embedded in this ring body hole, the peripheral ring winding number sheet blade corresponding of this ring body with this draw-in groove, one reinforcing chip that is connected this ring body and this blade is set between the inner edge of this blade and the periphery of this ring body, this reinforcing chip correspondence is embedded in this draw-in groove, the inner edge of this blade and the above-mentioned identical and cooperation of guide face shape, and between these two adjacent blades and the formed interval of annular base body is the air channel.

2. combination type blade wheel according to claim 1 is characterized in that the periphery of the wheel hub of this annular base body is provided with several pieces blades.

3. combination type blade wheel according to claim 2 is characterized in that, the blade of the wheel hub periphery of this annular base body is corresponding with the draw-in groove of ring body hole group, and docks formation one intact leaf with the blade of this impeller.

4. combination type blade wheel according to claim 3 is characterized in that, in the trailing edge in described air channel, this annular base body has additional the supercharging blade between its adjacent vanes.

5. combination type blade wheel according to claim 2, it is characterized in that, the blade of the wheel hub periphery of this annular base body is corresponding with the draw-in groove of ring body hole group, and this blade outwards also up extends to form the extension nose section near an end in the outside, and form a depressed area at the relative inboard upper limb place of this blade of this extension nose section, this depressed area makes the intact leaf of the blade-shaped one-tenth butt joint of this two upper and lower setting for the corresponding ccontaining cooperation of blade of this impeller.

6. combination type blade wheel according to claim 2 is characterized in that, this blade that is located at the wheel hub periphery is the supercharging blade, and is positioned at trailing edge place, formed air channel between two adjacent blades of this impeller.

7. combination type blade wheel according to claim 1 is characterized in that the ring body end face of this impeller is lower than the highest point of the apical margin of blade, and the guide face of the apical margin of the end face of the ring body of this impeller and this blade and this annular base body is according to flow Field Design.

8. combination type blade wheel according to claim 1 is characterized in that, the guide face below of this annular base body is established second ring body hole group again and established with second impeller sets of arranging in pairs or groups.

9. combination type blade wheel according to claim 8 is characterized in that, the blade of below impeller docks with the blade of the impeller of top and forms an intact leaf, and between two blades that impeller is adjacent below making and the formed interval of annular base body is the air channel.

10. combination type blade wheel according to claim 9 is characterized in that, in the trailing edge of formed air channel, the impeller of below is established the supercharging blade between its adjacent vanes between two adjacent blades of impeller up.

11. combination type blade wheel according to claim 8 is characterized in that, the blade of the impeller of this below is the supercharging blade, and is positioned at trailing edge place, formed air channel between the two adjacent blades of impeller of this top.

12. combination type blade wheel according to claim 8 is characterized in that, the ring body end face of this top impeller is lower than the highest point of the apical margin of its blade, and the guide face of the apical margin of the end face of the ring body of this top impeller and its blade and this annular base body is according to flow Field Design.

13. a combination type blade wheel is characterized in that, described combination type blade wheel comprises:

One clinohedral, it has guide face and at least one group of ring body hole group, and this ring body hole group comprises the ring body hole that most the draw-in grooves and that are arranged with are arranged with, each draw-in groove connected ring body opening and guide face of this ring body hole group;

At least one impeller, it has the ring body in the ring body hole of the clinohedral be located at, other has several pieces blade rings to be located at the peripheral region of this ring body, and each blade is corresponding with the draw-in groove of above-mentioned ring body hole group, one reinforcing chip that is connected this ring body and this blade is set between the inner edge of this blade and the periphery of this ring body, this reinforcing chip correspondence is embedded in the draw-in groove of above-mentioned ring body hole group, again the root edge of this blade and the above-mentioned identical and cooperation of guide face shape.

14. combination type blade wheel according to claim 13 is characterized in that, the root edge of this reinforcing chip and tool one angle between the horizontal line that the root edge of ring body extends.

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