CN102536860A - Thin cross-flow fan with air outlet boosting effect - Google Patents
Thin cross-flow fan with air outlet boosting effect Download PDFInfo
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- CN102536860A CN102536860A CN2012100066527A CN201210006652A CN102536860A CN 102536860 A CN102536860 A CN 102536860A CN 2012100066527 A CN2012100066527 A CN 2012100066527A CN 201210006652 A CN201210006652 A CN 201210006652A CN 102536860 A CN102536860 A CN 102536860A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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Abstract
A thin cross-flow fan with air outlet boosting effect is characterized by comprising a thin casing, a cross-flow guide passage, a blade group, an internal motor, a tongue, an extending retainer wall and an inner extending arc edge. The thin casing comprises two end faces and a plurality of cross sides. The cross-flow guide passage is formed inside the thin casing and comprises a circulating space, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on opposite cross sides of the thin casing. The blade group arranged in the circulating space is rotatable and comprises an impeller and a plurality of blades. The internal motor is positioned on the inner side of the end face of the thin casing and combined with the impeller in an aligning manner. The tongue is protruded and disposed in one side of the air outlet. The extending retainer wall extends from the tongue to the inside of the air outlet obliquely and is spaced from the periphery of the blades of the blade group. The inner extending arc edge extends from the tongue to the air inlet curvedly, and one end of the inner extending arc edge is in smooth link with the extending retainer wall integrally. The thin cross-flow fan with the outlet boosting effect has enough air outlet volume and strength, meets requirements for thinned structures in the industry while having cooling effect, and accordingly is quite practical.
Description
Technical field
The present invention relates to a kind of cross flow fan, refer to a kind of slim cross flow fan structural design of innovation especially with air-out pressurized effect.
Background technique
Indication of the present invention " cross flow fan " also is called centrifugal fan; The difference of itself and axial flow fan is that mainly the turnover of axial flow fan is distinguished and admirable to being to establish to delivery along the axle center of electric fan motor; And the turnover of cross flow fan distinguished and admirable to, then be wind path form along the footpath side direction delivery of electric fan electrical axis; With large-scale cross flow fan, the blower product is common example, and with large-scale or general small-sized cross flow fan structural design, its motor component normally is assembled into its outside, and enclosure interior then only is installed with the part of flabellum group.
Along with the slimming designs trend of present various computers, electronic product, make axial flow fan can't be applicable to this kind flat and thin attitude heat-dissipating space, so must adopt the proper cross flow fan structure of wind path form; Yet along with the slimming degree and the requirement of product further improves again, existing cross flow fan structural form also faces some bottlenecks and challenge; Particularly; See also shown in Figure 1, cross flow fan if will be more further slimming, must its motor 10 partly be moved into blower-casting 11 inside; So the practice can let cross flow fan housing height reach the thinness of only about 4 mm; But motor 10 moves into after blower-castings 11 inside, can cause flabellum group 12 center hub 13 external diameters to enlarge and the situation of reducing inner loop fluid space 14 sectional areas relatively, in the case; Originally exhaust outlet 15 width W 1 of standard size will be therefore and greater than inner loop fluid space 14 width W 2; Right this kind flow channel space proportionate relationship can cause originally so as to producing the guiding mechanism thus forfeiture of the blast effect of contracting, and is convexly set in exhaust outlet 15 inner sides originally and can't brings into play its effect in order to the tongue 16 that produces blast; Moreover; Its tongue 16 is set as one usually towards a side of wind inlet and expands and open the face form; Make that so air-flow is easy to produce a large amount of backflow phenomenons (shown in arrow L3) through tongue 16; And then cause final air output and go out monsoon intensity too faint, be difficult to meet the problem and the scarce fraud of the required heat dissipation requirement of industry.
Therefore, use to above-mentioned existing slim cross flow fan and to go up existing problem, how to develop a kind of innovation structure that can have more desirable practicability, think the target and the direction of breakthrough more in fact for remaining relevant industry.
In view of this, the inventor this in manufacturing development and the design experiences of being engaged in Related product for many years, to above-mentioned target, in detail after design and the scrupulous assessment, eventually this creation of a true tool practicability.
Summary of the invention
The purpose of this invention is to provide a kind of slim cross flow fan with air-out pressurized effect.
For achieving the above object; The technological scheme that the present invention adopts is: a kind of slim cross flow fan with air-out pressurized effect; Comprise: a thin case; For hollow shape housing form includes biend portion and several horizontal sidepieces, and between this biend portion formed height between between the 3mm to 10mm; One cross-flow type guide channel, the hollow shape that is formed at this thin case is inner, an intake grill and an exhaust outlet that this cross-flow type guide channel comprises an annular flow space and is opened in the horizontal sidepiece of the different side direction of thin case; One flabellum group is arranged in the annular flow space of this cross-flow type guide channel and is rotatable state, and several blades that this flabellum group is listed in this impeller periphery by an impeller and spacer ring constitute; One built-in motor, be provided with the end face portion be positioned this thin case inboard and with the impeller of flabellum group to bit combination, to order about this flabellum group rotation; One tongue is the side inside that the convex form is formed at this exhaust outlet; One extends barricade, and this tongue constitutes to the inner oblique extension of exhaust outlet certainly, and is the arranged spaced relation between the blade peripheral edge of this extension barricade and flabellum group; Stretch the arc edge in one, this tongue is to intake grill traversing arc Qu Yanshen certainly, an end of stretching the arc edge in this with extend barricade and be the smooth-going form that is connected of one, and should in stretch the arc edge the arc curvature match with the blade periphery arc curvature of flabellum group.
Related content in the technique scheme is explained as follows:
1. in the such scheme; Between the blade of said flabellum group and the impeller and be formed with the recessed space that lets of ring-type; So that the end face portion of thin case is closed on the place of extending barricade to should convexing with an inboard auxiliary barricade in the recessed space that lets of ring-type, and the arc curved attitude of extension form that should the auxiliary barricade in inboard for matching with the recessed ring-type curvature that lets the space of ring-type.
2. in the such scheme, said extension barricade inner with the inner side of exhaust outlet between clearance space and constitute an internal withdraw type blast and lead mouth, this internal withdraw type blast is led the minimum width of the width of mouth less than this annular flow space; This extension barricade the inner is to constituting air-out gain guide face for being oblique extension and the outside form that enlarges width gradually between the exhaust outlet again.
3. in the such scheme, the form of said extension barricade is the curved attitude of arc that matches with the blade peripheral edge ring-type curvature of flabellum group.
4. in the such scheme, the intake grill of said cross-flow type guide channel and exhaust outlet are provided with direction for being mutually an angle of 90 degrees relativeness or 180 degree angle relativenesses.
Working principle of the present invention and advantage are following:
1, through said extension barricade and in stretch the arc edge innovation unique texture design; The existing technology that control background technology of the present invention is carried; Make slim cross flow fan can obtain the preferable blast effect of width equally less than annular flow space; Reach enough air outputs and go out monsoon intensity, special tool practical improvement in the hope of meeting industry required slimming framework requirement and heat dissipation simultaneously.
2, close on a place of extending barricade through the end face portion of said thin case; And the recessed technical characterstic that lets the space convex with inboard auxiliary barricade of corresponding ring-type; Make and originally will reflux to the part air-flow of intake grill; Can utilize the effect of inboard auxiliary barricade generation resistance shelves, make air flow divert internal withdraw type blast lead a mouthful outflow, reach the further practical improvement that monsoon intensity and air output that increases.
Description of drawings
Accompanying drawing 1 is the plane and the flow field operating state schematic representation of existing structure;
Accompanying drawing 2 is the exploded perspective view of preferred embodiment of the present invention;
Accompanying drawing 3 is the exploded perspective view of flabellum group of the present invention and built-in motor;
Accompanying drawing 4 is plane of the present invention and flow field operating state schematic representation;
Accompanying drawing 5 is provided with the floor map that direction is mutually 180 degree angle relativenesses for intake grill of the present invention and exhaust outlet;
Accompanying drawing 6 lets the space convex with the enforcement state stereogram of inboard auxiliary barricade for ring-type of the present invention is recessed;
Accompanying drawing 7 is the operating state schematic representation of air-flow of the present invention through inboard auxiliary barricade;
Accompanying drawing 8 lets the space convex with the enforcement state plane sectional view of inboard auxiliary barricade for ring-type of the present invention is recessed;
Accompanying drawing 9 lets the space convex with another enforcement state plane sectional view of inboard auxiliary barricade for ring-type of the present invention is recessed.
In the above accompanying drawing: 10. motor; 11. blower-casting; 12. blower-casting; 13. center hub; 14. annular flow space; 15. exhaust outlet; 16. tongue; 20. thin case; 21. end face portion; 22. horizontal sidepiece; 30. cross-flow type guide channel; 31. annular flow space; 32. intake grill; 33. exhaust outlet; 40. flabellum group; 41. impeller; 42. blade; 43. tongue; 44. extension barricade; 441. in stretch the arc edge; 45. the internal withdraw type blast is led mouth; 50. built-in motor; 51. coil; 52. axostylus axostyle; 60. air-out gain guide face; 61. the recessed space that lets of ring-type; 62. inboard auxiliary barricade.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment: shown in accompanying drawing 1～5,
The preferred embodiment that has the slim cross flow fan of air-out pressurized effect for the present invention is a kind of, said fan comprises:
One thin case 20, for hollow shape housing form includes biend portion 21 and several horizontal sidepieces 22, and between this biend portion 21 formed height between between the 3mm to 10mm;
One cross-flow type guide channel 30, the hollow shape that is formed at this thin case 20 is inner, as shown in Figure 3, an intake grill 32 and an exhaust outlet 33 that this cross-flow type guide channel 30 comprises an annular flow space 31 and is opened in the horizontal sidepiece 22 of thin case 20 different side direction; Wherein the intake grill 32 of this cross-flow type guide channel 30 is provided with direction with exhaust outlet 33 and can be mutually an angle of 90 degrees relativeness (as shown in Figure 4) or 180 degree angle relativenesses (as shown in Figure 5);
One flabellum group 40; Be arranged in the annular flow space 31 of this cross-flow type guide channel 30 and be rotatable state; 42 in several blades that this flabellum group 40 is listed in these impeller 41 peripheries by an impeller 41 and spacer ring constitute, and see (as the flow field operating state of Fig. 4 shown in) with the air-flow that intake grill 32 is imported toward exhaust outlet 33 through the rotation of said blade 42;
One built-in motor 50, be provided with the end face portion 21 be positioned this thin case 20 inboard and with 41 pairs of bit combinations of impeller of flabellum group 40, order about this flabellum group 40 rotations with this; Wherein this built-in motor 50 can be the example of an electromagnetic machine, comprises associated components such as coil 51, axostylus axostyle 52;
One tongue 43 is the side inside that the convex form is formed at this exhaust outlet 33;
One extends barricade 44, the form that constituted to exhaust outlet 33 inner oblique extensions of this tongue 43 certainly, and be arranged spaced between blade 42 peripheral edges of this extension barricade 44 and flabellum group 40 and concern;
Like Fig. 4, shown in 5, wherein should extend the form of barricade 44, can be the curved attitude of arc that matches with the blade 42 peripheral edge ring-type curvatures of flabellum group 40.
Shown in Fig. 2～4; Wherein this extension barricade 44 inner with exhaust outlet 33 inner sides between clearance space and can constitute an internal withdraw type blast and lead mouthfuls 45, this internal withdraw type blast is led the minimum width (as in Fig. 4 W3 shown in) of the width (shown in W4 among Fig. 4) of mouth 45 less than this annular flow space 31; Constitute air-out gain guide face 60 for establishing the form that is oblique extension and outwards enlarges width gradually between this extension barricade 44 the inners to exhaust outlet 33 again.
Like Fig. 8, shown in 9; Wherein between the blade 42 of this flabellum group 40 and the impeller 41 and be formed with the recessed space 61 that lets of a ring-type; So that the end face portion 21 of thin case 20 is closed on the place of extending barricade 44 to should convexing with an inboard auxiliary barricade 62 (like Fig. 6, shown in 7) in the recessed space 61 that lets of ring-type, and the arc curved attitude of extension form that should the auxiliary barricade 62 in inboard for matching with the recessed ring-type curvature that lets space 61 of ring-type; Wherein should assist barricade 62 can cooperate the example of blade 42 in the inboard; And different configuration modes is arranged, as shown in Figure 8, the blade 42 of this flabellum group 40 can be the local example that protrudes out in the outside downwards; And and be formed with the recessed space 61 that lets of ring-type between the impeller 41; So that end face portion 21 is closed on the place of extending barricade 44 to should convexing with an inboard auxiliary barricade 62 (like Fig. 6, shown in 7) in the recessed space 61 that lets of ring-type, or as shown in Figure 9, and the blade 42 of this flabellum group 40 can be the local example that protrudes out up and down in the outside; And and be formed with the recessed space 61 that lets of upper and lower side ring shape between the impeller 41, so that the auxiliary barricade 62 in upper and lower biend portion 21 all configurable inboards.
Form design through said structure, now as follows with regard to user mode explanation of the present invention:
As shown in Figure 4; Said blade 42 rotations (shown in arrow L1) are seen off toward exhaust outlet 33 with the air-flow that intake grill 32 is imported; And through this extension barricade 44 and in stretch arc edge 441 the design of water conservancy diversion and choked flow form; So can increase the blast effect of exhaust outlet 33, and then significantly increase and monsoon intensity; Further; And can be through the said air-out gain guide face 60 that is oblique extension and outwards enlarges the width form gradually; Make air-flow after supercharging, can and reach the effect that increases air output, and go into air quantity relatively and also can therefore increase along this air-out gain guide face 60.
The internal withdraw type blast is led the technical characterstic of the width (shown in W4) of mouth 45 less than these annular flow space 31 minimum widths (shown in W3), makes air-flow lead mouthful 45 places owing to reduced width produces the blast effect at the internal withdraw type blast.
As shown in Figure 7; Wherein this end face portion 21 is closed on and is extended barricade 44 1 places and can convex with an inboard auxiliary barricade 62 again; Can make whereby and originally will reflux to the part air-flow of intake grill 32; Can produce barrier effect through the auxiliary barricade 62 in said inboard, make air flow divert internal withdraw type blast lead mouthful 45 outflows (shown in arrow L2), be able to further increase the real benefit of monsoon intensity and air output.
Advantage of the present invention:
1, through said extension barricade and in stretch the arc edge innovation unique texture design; The existing technology that control background technology of the present invention is carried; Make slim cross flow fan can obtain the preferable blast effect of width equally less than annular flow space; Reach enough air outputs and go out monsoon intensity, special tool practical improvement in the hope of meeting industry required slimming framework requirement and heat dissipation simultaneously.
2, close on a place of extending barricade through the end face portion of said thin case; And the recessed technical characterstic that lets the space convex with inboard auxiliary barricade of corresponding ring-type; Make and originally will reflux to the part air-flow of intake grill; Can utilize the effect of inboard auxiliary barricade generation resistance shelves, make air flow divert internal withdraw type blast lead a mouthful outflow, reach the further practical improvement that monsoon intensity and air output that increases.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. slim cross flow fan with air-out pressurized effect is characterized in that: comprising:
One thin case, for hollow shape housing form includes biend portion and several horizontal sidepieces, and between this biend portion formed height between between the 3mm to 10mm;
One cross-flow type guide channel, the hollow shape that is formed at this thin case is inner, an intake grill and an exhaust outlet that this cross-flow type guide channel comprises an annular flow space and is opened in the horizontal sidepiece of the different side direction of thin case;
One flabellum group is arranged in the annular flow space of this cross-flow type guide channel and is rotatable state, and several blades that this flabellum group is listed in this impeller periphery by an impeller and spacer ring constitute;
One built-in motor, be provided with the end face portion be positioned this thin case inboard and with the impeller of flabellum group to bit combination, to order about this flabellum group rotation;
One tongue is the side inside that the convex form is formed at this exhaust outlet;
One extends barricade, and this tongue constitutes to the inner oblique extension of exhaust outlet certainly, and is the arranged spaced relation between the blade peripheral edge of this extension barricade and flabellum group;
Stretch the arc edge in one, this tongue is to intake grill traversing arc Qu Yanshen certainly, an end of stretching the arc edge in this with extend barricade and be the smooth-going form that is connected of one, and should in stretch the arc edge the arc curvature match with the blade periphery arc curvature of flabellum group.
2. fan according to claim 1; It is characterized in that: between the blade of said flabellum group and the impeller and be formed with the recessed space that lets of ring-type; So that the end face portion of thin case is closed on the place of extending barricade to should convexing with an inboard auxiliary barricade in the recessed space that lets of ring-type, and the arc curved attitude of extension form that should the auxiliary barricade in inboard for matching with the recessed ring-type curvature that lets the space of ring-type.
3. fan according to claim 1 is characterized in that: said extension barricade inner with the inner side of exhaust outlet between clearance space and constitute an internal withdraw type blast and lead mouth, this internal withdraw type blast is led the minimum width of the width of mouth less than this annular flow space; This extension barricade the inner is to constituting air-out gain guide face for being oblique extension and the outside form that enlarges width gradually between the exhaust outlet again.
4. according to claim 1 or 2 or 3 described fans, it is characterized in that: the arc curved attitude of the form of said extension barricade for matching with the blade peripheral edge ring-type curvature of flabellum group.
5. fan according to claim 1 is characterized in that: the intake grill of said cross-flow type guide channel and exhaust outlet are provided with direction for being mutually an angle of 90 degrees relativeness or 180 degree angle relativenesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006652.7A CN102536860B (en) | 2012-01-11 | 2012-01-11 | Thin cross-flow fan with air outlet boosting effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006652.7A CN102536860B (en) | 2012-01-11 | 2012-01-11 | Thin cross-flow fan with air outlet boosting effect |
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| CN102536860A true CN102536860A (en) | 2012-07-04 |
| CN102536860B CN102536860B (en) | 2014-01-08 |
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| CN201210006652.7A Active CN102536860B (en) | 2012-01-11 | 2012-01-11 | Thin cross-flow fan with air outlet boosting effect |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711716A (en) * | 2012-09-28 | 2014-04-09 | 英特尔公司 | Blower assembly for electronic device |
| TWI557325B (en) * | 2014-05-28 | 2016-11-11 | Asia Vital Components Co Ltd | Fan structure |
| US9655278B2 (en) | 2014-06-05 | 2017-05-16 | Asia Vital Components Co., Ltd. | Slim fan structure |
| CN108691808A (en) * | 2017-04-12 | 2018-10-23 | 建准电机工业股份有限公司 | Air-out flow guiding structure of air exchange fan |
| CN108869337A (en) * | 2014-03-24 | 2018-11-23 | 台达电子工业股份有限公司 | Fan |
| CN112746980A (en) * | 2020-12-31 | 2021-05-04 | 深圳市银星智能科技股份有限公司 | Fan subassembly and cleaning machines people |
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| CN101676569A (en) * | 2008-09-19 | 2010-03-24 | 富准精密工业(深圳)有限公司 | Heat sink and centrifugal fan applied by same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711716A (en) * | 2012-09-28 | 2014-04-09 | 英特尔公司 | Blower assembly for electronic device |
| US9239060B2 (en) | 2012-09-28 | 2016-01-19 | Intel Corporation | Blower assembly for electronic device |
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| CN108869337A (en) * | 2014-03-24 | 2018-11-23 | 台达电子工业股份有限公司 | Fan |
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| CN108869337B (en) * | 2014-03-24 | 2021-03-30 | 台达电子工业股份有限公司 | Fan with cooling device |
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| TWI557325B (en) * | 2014-05-28 | 2016-11-11 | Asia Vital Components Co Ltd | Fan structure |
| US9655278B2 (en) | 2014-06-05 | 2017-05-16 | Asia Vital Components Co., Ltd. | Slim fan structure |
| CN108691808A (en) * | 2017-04-12 | 2018-10-23 | 建准电机工业股份有限公司 | Air-out flow guiding structure of air exchange fan |
| CN108691808B (en) * | 2017-04-12 | 2020-05-12 | 建准电机工业股份有限公司 | Air-out flow guiding structure of air exchange fan |
| CN112746980A (en) * | 2020-12-31 | 2021-05-04 | 深圳市银星智能科技股份有限公司 | Fan subassembly and cleaning machines people |
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|---|---|
| CN102536860B (en) | 2014-01-08 |
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