CN101666326B - Combined impeller - Google Patents
Combined impeller Download PDFInfo
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- CN101666326B CN101666326B CN200810176332XA CN200810176332A CN101666326B CN 101666326 B CN101666326 B CN 101666326B CN 200810176332X A CN200810176332X A CN 200810176332XA CN 200810176332 A CN200810176332 A CN 200810176332A CN 101666326 B CN101666326 B CN 101666326B
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- blade
- ring body
- impeller
- combination type
- annular base
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Abstract
The invention discloses a combined impeller. At least one impeller is arranged in an annular seat body, wherein the annular seat body is provided with a guide surface and is also provided with at least one annular body hole group, the annular body hole group comprises a plurality of concave clamping grooves and a concave annular body hole, and each clamping groove is communicated with the annular body hole and the guide surface; and the impeller is provided with an annular body which is embedded into the annular body hole of the annular seat body, a plurality of blades encircle the periphery of the annular body, reinforcing sheets for connecting the annular body and the blades are arranged between the inner edges of the blades and the periphery of the annular body, the reinforcing sheets are correspondingly embedded into the clamping grooves, the inner edges of the blades and the guide surface have the same shape and are matched, and air passages are formed between the two adjacent blades and in a section formed by the annular seat body. Through the design, the weak sections formed between the annular body and the blades can be eliminated, so the impeller is not easy to deform, and accurate positioning and combination between the impeller and the annular seat body are favorable.
Description
Technical field
The present invention relates to a kind of combination type blade wheel, particularly relate to a kind of interference that utilizes compound mode to overcome mold releasability, and increase the impeller component strength, prevent to be out of shape and then combination type blade wheel that accurately location promotes quality of product.
Background technique
Existing radiation fan please refer to China Patent No. ZL01268180.6 " combined type radiation fan " (please in conjunction with reference Figure 11), this combined type radiation fan 4 comprises fan body 42 on the fan body 41 and, this time fan body 41 has the body 411 that an end face protrudes taper, these body 411 end face central projections are provided with sleeve 412, these body 411 periphery projections have most lower blades 413, these body 411 end faces are outward extended with clamping groove 414 with this lower blade 413 respective amount by these sleeve 412 peripheries, and these clamping groove 414 external port are alignd with this lower blade 413; Should go up fan body 42 and have a flat collar 421, these collar 421 central authorities are provided with the sleeve 412 that trepanning 422 covers are fixed in this time fan body 41, these collar 421 peripheries are extended with the upper blade 423 with this lower blade 413 respective amount, these upper blade 423 root edges apical margin proper and this lower blade 413 is the continued access shape, these upper blade 423 roots are provided with clip bar 424, and it is fixing that this clip bar 424 is inserted the clamping groove 414 of this time fan body 41.
Yet, this kind combined type radiation fan 4, because of upper blade 423 has more should guide face 415 siding-to-siding block lengths, and make this upper blade 423 because of the long strength deficiency of length, though this combined type radiation fan 4 tool clip bars 424 in addition, but because of this clip bar 424 tapering that is corresponding taper bodies 411 and the radian of upper blade 423 inner edges are established, make the inner edge structure of this upper blade 423 be middle high gradually low toward periphery, and therefore make 421 of upper blade 423 inner edges and the collars produce W between vulnerable areas, and easy deformation, the while also influences the accurate location and the firm situation of 41 of last fan body 42 and following fan body.
In addition, please refer to Figure 12, it is a kind of radiation fan 6 of centrifugal action, this radiation fan 6 includes impeller 62 on a clinohedral 61 and, wherein this clinohedral 61 is provided with the guide face 611 of the taper that is outstanding, and the central authorities of this guide face 611 establish disk 612, and impeller 62 tools are to ring body 621 that should disk 612 on this, the outer periphery of this ring body 621 are provided with several pieces upper blades 622, the inner edge 6221 of corresponding guide face 611 shapes of these several pieces upper blade 622 tools.
But, though the design tool centrifugal action of this radiation fan can increase blast, but the inner edge of this upper blade 622 is for to establishing by guide face, make the inner edge structure of this upper blade 622 be middle high gradually low toward periphery, cause 621 of upper blade 622 inner edges and ring bodies to produce W between vulnerable areas, and upper blade 622 only interconnect with the zonule with ring body 621, so that strength deficiency, and easy deformation is difficult to do accurately reach firm location again.
Therefore, how can under the prerequisite that can increase heat dissipation, design a kind of can the manufacturing with cost-effective radiation fan easily and accurately, be the important topic that the present technique field will overcome solution.
Summary of the invention
The object of the present invention is to provide a kind of combination type blade wheel structure, especially a kind of shortcoming that can overcome above-mentioned existing combined type radiation fan, component strengths and not yielding such as the impeller of increase making, annular base body, and then can be easily and the combination type blade wheel of accurate localization and combination.
To achieve these goals, the invention provides a kind of combination type blade wheel, it establishes the impeller of at least one in an annular base body group; Wherein, this annular base body is provided with at least one group depression ring body hole group, and this depression 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; This impeller has ring body and is embedded in the ring body hole of annular base body, this ring body is on every side around several pieces blades, be provided with the reinforcing chip that is connected this ring body and this blade between the inner edge of this blade and the ring body periphery, this reinforcing chip correspondence is embedded in this draw-in groove, the inner edge of this blade and above-mentioned guide face shape are identical and cooperate again, and make between two adjacent blades and the formed interval of annular base body is the air channel.
Combination type blade wheel of the present invention further makes the peripheral ring winding of the wheel hub of this annular base body deposit blade.And the blade of this annular base body docks with the blade of impeller and forms complete blade.Or further make the outboard end of the blade of this annular base body that nose section upwards is set, and making the inboard depressed area that forms relatively of the blade of this annular base body, this depressed area forms complete blade for the blade for impeller docks with it.Make the blade position of this annular base body be in trailing edge place, formed air channel between two blades of this impeller again or further, make the blade of this annular base body become a supercharging blade.
Combination type blade wheel of the present invention further makes the ring body end face of this impeller be lower than the highest point of the apical margin of blade again, 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.
The present invention also provides a kind of 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.
The advantage of this structural design has: can eliminate between ring body and blade between formed vulnerable areas by reinforcing chip, and more help between impeller and annular base body accurate location and firmly group establish.
Description of drawings
Fig. 1 is the present invention's first preferred embodiment combination type blade wheel three-dimensional exploded view;
Fig. 2 is the constitutional diagram of the present invention's first preferred embodiment combination type blade wheel;
Fig. 3 is the three-dimensional exploded view of the present invention's second preferred embodiment combination type blade wheel;
Fig. 4 is the side-looking exploded view of the present invention's the 3rd preferred embodiment combination type blade wheel;
Fig. 5 is the side-looking exploded view of the present invention's the 4th preferred embodiment combination type blade wheel;
Fig. 6 is the three-dimensional combination figure of the present invention's the 5th preferred embodiment combination type blade wheel;
Fig. 7 is the three-dimensional exploded view of the present invention's the 6th preferred embodiment combination type blade wheel;
Fig. 8 is the side-looking constitutional diagram of the present invention's the 6th preferred embodiment combination type blade wheel;
Fig. 9 is the three-dimensional exploded view of the present invention's the 7th preferred embodiment combination type blade wheel;
Figure 10 is the side-looking exploded view of the present invention's the 8th preferred embodiment combination type blade wheel;
Figure 11 is a China Patent No. ZL01268180.6 combined type radiation fan three-dimensional exploded view;
Figure 12 is the box-like radiation fan three-dimensional exploded view of traditional group.
The primary component label declaration:
The present invention:
1 combination type blade wheel, 11 annular base body
111 wheel hubs, 112 guide faces
113 ring body hole group 1131 draw-in grooves
1132 ring body holes, 114 supercharging blades
115 blades, 1151 nose sections
1152 depressed areas, 12 impellers
121 ring bodies, 1211 peripheries
1212 end faces, 122 blades
1221 inner edges, 1222 apical margins
123 reinforcing chips, 3 combination type blade wheels
31 clinohedrals, 311 guide faces
312 ring body hole group 3121 draw-in grooves
3122 ring body holes, 32 impellers
321 ring bodies, 3211 peripheries
322 blades, 3221 inner edges
323 reinforcing chip θ angles
H horizontal line 4 combination type blade wheels
41 annular base body, 411 wheel hubs
412 guide faces, 413 ring body hole groups
4131 draw-in grooves, 4132 ring body holes
42 impellers, 421 ring bodies
4211 peripheries, 422 blades
4221 inner edges, 423 reinforcing chips
Prior art:
41 times fan body of 4 radiation fans
411 bodies, 412 sleeves
413 lower blades, 414 clamping grooves
422 trepannings, 423 upper blades
424 clip bars, 415 guide faces
5 radiation fans between the W vulnerable areas
51 axial flows are to fan 511 round bumps
512 flabellums 52 are centrifugal to fan
523 flabellums, 522 cylindrical shells
521 dome bodies, 6 radiation fans
61 clinohedrals, 611 guide faces
Impeller on 612 disks 62
621 ring bodies, 622 upper blades
6221 inner edges
Embodiment
Please cooperate with reference to figure 1, shown in Figure 2, it is first preferred embodiment of combination type blade wheel of the present invention; This combination type blade wheel 1 comprises: an annular base body 11 and an impeller 12; Wherein:
This annular base body 11 has wheel hub 111, establish the guide face 112 of convex arc-shape on this wheel hub 111, and a ring body hole group 113 is set on this annular base body 11, this ring body hole group 113 comprises the ring body hole 1132 that most the draw-in grooves 1131 and that are arranged with are arranged with, and each draw-in groove 1131 is communicated with this ring body hole 1132 and this guide face 112; In addition, this annular base body 11 can further be established several supercharging blades 114 (please refer to Fig. 6) at peripheral region, and 114 in each supercharging blade is at impeller 12 in twos in the air channel trailing edge of 122 of adjacent vanes;
Have a ring body 121 in the middle of this impeller 12 and be embedded 1132 places, ring body hole in this annular base body 11, several blade 122 rings are located at the periphery 1211 of this ring body 121, and it is corresponding with each draw-in groove 1131 of annular base body 11, form an interval between the inner edge 1221 of this blade 122 and the periphery 1211 of this ring body 121, one reinforcing chip 123 is set in this interval, and this reinforcing chip 123 is connected between this ring body 121 and the blade 122, and corresponding being embedded in the draw-in groove 1131 of annular base body 11, make this annular base body 11, impeller 12 corresponding assembling location, guide face 112 shapes of the inner edge 1221 corresponding annular base body 11 of this blade 122 and matching again, and to make 122 adjacent in two blades and annular base body 11 formed intervals be the air channel.
Please refer to Fig. 3, be second preferred embodiment of combination type blade wheel of the present invention; The difference of this combination type blade wheel 1 and the combination type blade wheel 1 of one preferred embodiment be: this annular base body 11 has several pieces blades 115 around this wheel hub 111, and the number that this blade 115 is provided with is to the quantity of draw-in groove 1131 that should annular base body 11; And this blade 115 docks with the blade 122 of impeller 12 and forms complete blade.
Please refer to Fig. 4, be the 3rd preferred embodiment of combination type blade wheel of the present invention; The difference of the combination type blade wheel 1 of this combination type blade wheel 1 and second preferred embodiment at: the blade 115 of this annular base body 11 near the end in the outside outwards and extend upward to form and extend nose section 1151 is, and form a depressed area 1152 at the relative inboard upper limb place of the blade 115 of this extension nose section 1151, this depressed area 1152 makes blade 122, the 115 butt joint backs in this upper and lower orientation of apportion form complete blade for the blade 122 corresponding ccontaining cooperations of impeller 12.
Please cooperate with reference to shown in Figure 5, it is the 4th preferred embodiment of the present invention, the combination type blade wheel 1 of the 4th preferred embodiment and the difference of second preferred embodiment mainly be: ring body 121 end faces 1212 of this impeller 12 are lower than the highest point of the apical margin 1222 of blade 122, and the guide face 112 of the apical margin 1222 of the end face 1212 of the ring body 121 of this impeller 12 and blade 122 and annular base body 11 is according to flow Field Design.
Please cooperate with reference to shown in Figure 6, it is the 5th preferred embodiment of the present invention, and it mainly establishes supercharging blade 114 in the air channel trailing edge of 115 of the adjacent vanes of annular base body 11.
With reference to figure 7, Fig. 8, it is the 6th preferred embodiment of the present invention again, and this combination type blade wheel 3 belongs to a kind of fan of tool centrifugal action, and this combination type blade wheel 3 comprises a clinohedral 31 and an impeller 32; Wherein:
This clinohedral 31 is provided with the guide face 311 that is concave arc shape, and on this clinohedral 31, be provided with a ring body hole group 312, this ring body hole group 312 comprises the ring body hole 3122 that most the draw-in grooves 3121 and that are arranged with are arranged with, each draw-in groove 3121 connected ring body openings 3122 and this guide face 311 of this ring body hole group 312;
Has a ring body 321 in the middle of this impeller 32, this ring body 321 has periphery 3211, in this periphery 3211 around being provided with several pieces blades 322, guide face 311 shapes of the inner edge 3221 inclined surface bodies 31 of this blade 322, make the inner edge 3221 of this upper blade 322 be middle high gradually low outward moulding, and therefore and form an interval between the periphery 3211 of this ring body 321, one reinforcing chip 323 is set in this interval, and this reinforcing chip 323 is connected between this ring body 321 and the upper blade 322, these reinforcing chip 323 correspondences are embedded in the draw-in groove 3121 of clinohedral 31, and this ring body 321 is located in the ring body hole 3122 of clinohedral 31, with with this impeller 32, clinohedral 31 corresponding assembling location, guide face 311 shapes of the inner edge 3221 inclined surface bodies 31 of this blade 322 and matching again, and to make 322 adjacent in two blades and clinohedral 31 formed intervals be the air channel.
In this embodiment, the root edge of this reinforcing chip 323 can further be designed to and between the horizontal line H that ring body 321 root edges extend tool one angle theta (refer again to Fig. 8), to increase the structural strength in these reinforcing chip 323 reinforcement intervals.
The 7th preferred embodiment of combination type blade wheel 4 of the present invention comprises: an annular base body 41, at least one impeller 42; Wherein, illustrate that for the benefit of the present invention is to form these combination type blade wheels 4 with the impeller 42 of two upper and lower settings and an annular base body 41 to describe at this, and please cooperate with reference to shown in Figure 9.
This annular base body 41 has wheel hub 411, establish the guide face 412 of taper and the ring body hole group 413 that corresponding impeller 42 numbers are provided with on this wheel hub 411, this ring body hole group 413 comprises the ring body hole 4132 that most the draw-in grooves 4131 and that are arranged with are arranged with, and each draw-in groove 4131 of this ring body hole group 413 is communicated with this ring body hole 4132 and this guide face 412;
Has a ring body 421 in the middle of this impeller 42, several blade 422 rings are located at the periphery 4211 of this ring body 421, and it is corresponding with each draw-in groove 4131 of annular base body 41, form an interval between the inner edge 4221 of this blade 422 and the periphery 4211 of this ring body 421, one reinforcing chip 423 is set in this interval, and this reinforcing chip 423 is connected between this ring body 421 and the blade 422, this ring body 421 is located in the ring body hole 4132 of annular base body 41 again, guide face 412 shapes of the inner edge 4221 corresponding annular base body 41 of this blade 422 also match, these reinforcing chip 423 correspondences are embedded in the draw-in groove 4131 of annular base body 41, so that the 42 corresponding assemblings of this impeller are positioned on this annular base body 41, and to make 422 adjacent in two blades and annular base body 41 formed intervals be the air channel.
The combination type blade wheel 4 of present embodiment can further make blade 422 butt joints of two impellers 42 of this upper and lower setting form complete blade.Or the blade 422 of impeller 42 that further makes below, this place is as the blade 115 of the annular base body 11 of Fig. 4, promptly nose section 1151 upwards is set at its outboard end, make the inboard of this blade 115 form depressed area 1152 relatively, for the blade 422 of the impeller 42 above the present embodiment meta place blade complete with docking formation.Or 422 in the blade that further makes the impeller 42 of below, this place is in the trailing edge place, 422 formed air channels of two blades of this top impeller 42, makes the blade 422 of this below impeller 42 become a supercharging blade (please refer to Figure 10).In addition, this combination type blade wheel 4 can further make ring body 421 end faces of the impeller 42 of this top be lower than the highest point of the apical margin of blade 422 again, and the guide face 412 of the apical margin of the end face of the ring body 421 of this impeller 42 and this blade 422 and this annular base body 41 is according to flow Field Design.
In addition, annular base body 11 shapes that the annular base body 41 of present embodiment can be as shown in Figure 1, or cone shape as shown in Figure 7.
Via the detailed description of said structure feature, can know and find out that design characteristic of the present invention is:
1. go up between the inner edge of upper blade of impeller and the ring body periphery and be connected with, can increase the intensity of upper blade, and prevent that impeller is when penetrating and penetrate the back distortion with reinforcing chip.
2. just because of the unlikely distortion of last impeller, the collocation of reinforcing chip and draw-in groove also makes impeller accurately locate easily and be assembled in down on the impeller, and is beneficial to the balance of rotation simultaneously.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810176332XA CN101666326B (en) | 2008-09-04 | 2008-11-14 | Combined impeller |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810213748 | 2008-09-04 | ||
| CN200810213748.4 | 2008-09-04 | ||
| CN200810176332XA CN101666326B (en) | 2008-09-04 | 2008-11-14 | Combined impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101666326A CN101666326A (en) | 2010-03-10 |
| CN101666326B true CN101666326B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810176332XA Expired - Fee Related CN101666326B (en) | 2008-09-04 | 2008-11-14 | Combined impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101666326B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386602B (en) * | 2012-05-08 | 2017-04-12 | 珠海格力电器股份有限公司 | Assembling device for wind wheel and shaft ring of clothes dryer and assembling method |
| DE102015214854A1 (en) * | 2015-08-04 | 2017-02-09 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Compressor wheel for an exhaust gas turbocharger |
| CN106837866A (en) * | 2016-09-12 | 2017-06-13 | 东莞市卓奇电子科技有限公司 | Noise-and-vibration-reduction impeller |
| CN109083866A (en) * | 2018-09-20 | 2018-12-25 | 江门市桑尼光电科技有限公司 | A kind of ceiling fan |
| CN112360764B (en) * | 2020-09-22 | 2021-07-13 | 东风汽车集团有限公司 | Turbocharger, adjusting method, engine and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098582U (en) * | 1991-08-23 | 1992-03-11 | 尚明玉 | Fixing base for blades of fan |
| CN2450417Y (en) * | 2000-11-02 | 2001-09-26 | 庄文豪 | Double-action radiating fan |
| US7438525B2 (en) * | 2005-08-24 | 2008-10-21 | Delta Electronics, Inc. | Fan housing |
-
2008
- 2008-11-14 CN CN200810176332XA patent/CN101666326B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098582U (en) * | 1991-08-23 | 1992-03-11 | 尚明玉 | Fixing base for blades of fan |
| CN2450417Y (en) * | 2000-11-02 | 2001-09-26 | 庄文豪 | Double-action radiating fan |
| US7438525B2 (en) * | 2005-08-24 | 2008-10-21 | Delta Electronics, Inc. | Fan housing |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-291589A 2000.10.17 |
| JP特开2007-063989A 2007.03.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101666326A (en) | 2010-03-10 |
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Granted publication date: 20110817 Termination date: 20131114 |