CN100341145C - Air outlet flow guiding structure of radiating fan - Google Patents
Air outlet flow guiding structure of radiating fan Download PDFInfo
- Publication number
- CN100341145C CN100341145C CNB031537464A CN03153746A CN100341145C CN 100341145 C CN100341145 C CN 100341145C CN B031537464 A CNB031537464 A CN B031537464A CN 03153746 A CN03153746 A CN 03153746A CN 100341145 C CN100341145 C CN 100341145C
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- air outlet
- diversion division
- heat emission
- emission fan
- radially
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Abstract
The present invention discloses an air outlet flow guide structure of a radiation fan. A base and a plurality of ribs are formed at an air outlet of a casing, wherein the base is used for bearing a fan wheel; the ribs are radially connected between the casing and the base in a radial direction; each rib is at least provided with a first radical flow guide part, a first annular flow guide part and a second radical flow guide part; the first radical flow guide part and the second flow guide part form the inclination correspondingly to blades of the fan wheel; the first annular flow guide part is connected between the first radical flow guide part and the second radical flow guide part; during the operation of the fan wheel, the first radical flow guide part, the first annular flow guide part and the second radical flow guide part guide the flow direction of airflow and correspondingly increase the air pressure.
Description
Technical field
The present invention relates to a kind of air outlet Flow guiding structure, be meant that especially a kind of rib of the air outlet of heat emission fan that makes forms several radially diversion division and several ring-type diversion divisions, cut the air outlet Flow guiding structure of the heat emission fan of noise with the air-guiding flow direction, increase blast and minimizing wind.
Background technology
The casing structure of known heat emission fan, as shown in Figure 1, it comprises a housing 10, an air inlet 11, an air outlet 12, a pedestal 13 and several ribs 14.Two sides of this housing 10 form this air inlet 11 and air outlet 12.This pedestal 13 is by the firm air outlet that is formed on this housing 10 of this rib 14, for setting firmly a stator (not shown) and in conjunction with an impeller (not shown).By this, when this impeller running, this heat emission fan can be sucked air-flow and be discharged by this air outlet 12 by this air inlet 11, so that a certain desire heat radiation object (for example radiating fin or central processing unit) is dispelled the heat.
Though above-mentioned known heat emission fan has heat sinking function really, the air-flow of this heat emission fan usually only can along this housing 10 axially and via the discharge of taking advantage of a situation of this air outlet 12, so that dispelled the heat in position under this air outlet 12.Yet, if this desire heat radiation object fail to be positioned at this air outlet 12 under the position, this desire heat radiation object can't receive most radiating airflow, therefore may cause the heat radiation uneven phenomenon and influence actual radiating efficiency.On the other hand, when this desire heat radiation object limited because of assembling space (for example in notebook computer) fail to select to be incorporated into this pedestal 13 under or during this air outlet 12 peripheral, maybe when this desire heat radiation object have large-size and can't be in fully this heat emission fan under the time, it all can have a strong impact on actual radiating efficiency.Moreover this air-flow is by this rib 14 time, and it is also followed easily and forms flow-disturbing or sinuous flow, and produces noise and reduce radiating efficiency.
In view of this, for overcoming above-mentioned shortcoming, the inventor has developed the present invention.
Summary of the invention
The main technical problem to be solved in the present invention provides a kind of air outlet Flow guiding structure of heat emission fan, its each rib at air outlet is formed with several radially diversion division and at least one ring-type diversion divisions, this is diversion division and the axial formation inclination of the blade of this impeller and air outlet relatively respectively of ring-type diversion division radially, makes the present invention have air-guiding, increases blast, reduces the effect that wind is cut noise and promoted integral heat sink efficient.
The less important technical problem that the present invention will solve provides a kind of air outlet Flow guiding structure of heat emission fan, and it makes each rib of air outlet form several radially diversion division and at least one ring-type diversion divisions.By changing this radially incline direction of diversion division and ring-type diversion division, can select air-flow is directed to arbitrary desire heat radiation position, to concentrate heat radiation or to enlarge the heat radiation scope, the present invention is had the effect that promotes integral heat sink efficient and increase assembling design nargin.
Another technical problem that the present invention will solve provides a kind of air outlet Flow guiding structure of heat emission fan, it makes each rib of air outlet form several radially diversion division and at least one ring-type diversion divisions, so the zigzag structure of this rib formation can beautify and decorate the outward appearance of heat emission fan, makes the present invention have the effect that promotes the heat emission fan surcharge.
Technical scheme of the present invention is: a kind of air outlet Flow guiding structure of heat emission fan, and wherein: its air outlet in a housing is provided with:
One pedestal, it is in order to carry an impeller, and this impeller has several blades; Several ribs, it is connected between this housing and the pedestal, this each rib is provided with one first diversion division, one first ring-type diversion division and one second diversion division radially radially at least, this first and second radially diversion division relatively the axial formation of this heat emission fan air outlet tilt, and this first ring-type diversion division is connected in this first and second radially between the diversion division, when the running of this impeller, but this first radially diversion division, ring-type diversion division and second radially the diversion division air-guiding flow to and increase blast relatively.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this first and second radially the inclination angle of diversion division is identical.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this first and second inclination angle difference of diversion division radially.
The air outlet Flow guiding structure of heat emission fan as mentioned above, the first ring-type diversion division of each rib is formed on the same concentric circles.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this first ring-type diversion division axial formation outer radial of the air outlet of this heat emission fan relatively tilt.
The air outlet Flow guiding structure of heat emission fan radially tilts in the axial formation of the air outlet of relative this heat emission fan of this first ring-type diversion division as mentioned above.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this rib is provided with radially diversion division of one second ring-type diversion division and the 3rd in addition, and this second ring-type diversion division and the 3rd radially diversion division is connected in this second radially between diversion division and this housing.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this first, second and third radially the inclination angle of diversion division be identical.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this first, second and third radially the inclination angle of diversion division be different.
The air outlet Flow guiding structure of heat emission fan as mentioned above, the second ring-type diversion division of each rib is formed on the same concentric circles.
The air outlet Flow guiding structure of heat emission fan as mentioned above, this second ring-type diversion division axial formation outer radial of the air outlet of this heat emission fan relatively tilt.
The air outlet Flow guiding structure of heat emission fan radially tilts in the axial formation of the air outlet of relative this heat emission fan of this second ring-type diversion division as mentioned above.
Characteristics of the present invention and advantage are: the air outlet Flow guiding structure of the heat emission fan that the present invention proposes, it forms several radially diversion division and several ring-type diversion divisions on the rib of air outlet, because this radially diversion division blade formation inclination of this impeller relatively, and this ring-type diversion division axial formation inclination of this air outlet relatively, therefore this rib can be directed to air-flow arbitrary desire heat radiation position, and increases blast simultaneously relatively.Therefore, the present invention has expansion heat radiation scope really, concentrates heat radiation, reduces the advantage that wind is cut noise, promoted the design margin of integral heat sink efficient and increase assembling.
Description of drawings
Fig. 1 is the stereogram of the casing structure of known heat emission fan;
Fig. 2 is the stereogram of air outlet Flow guiding structure of the heat emission fan of first embodiment of the invention;
Fig. 3 is the top view of air outlet Flow guiding structure of the heat emission fan of first embodiment of the invention;
Fig. 4 is the cutaway view of the present invention along the A-A line of Fig. 3;
Fig. 5 is the top view of air outlet Flow guiding structure of the heat emission fan of second embodiment of the invention;
Fig. 6 is the cutaway view of the present invention along the B-B line of Fig. 5;
Fig. 7 is the top view of air outlet Flow guiding structure of the heat emission fan of third embodiment of the invention;
Fig. 8 is the cutaway view of the present invention along the C-C line of Fig. 7;
Fig. 9 is the stereogram of air outlet Flow guiding structure of the heat emission fan of fourth embodiment of the invention;
Figure 10 is the top view of air outlet Flow guiding structure of the heat emission fan of fourth embodiment of the invention.
The drawing reference numeral explanation:
10, housing 11, air inlet 12, air outlet 13, pedestal
14, radially diversion division 142, the first ring-type diversion division of rib 141, first
143, second radially diversion division 144, the second ring-type diversion division
145, the 3rd diversion division radially
Embodiment
In order to allow above-mentioned technical problem of the present invention, feature and advantage understand by clearer and more definite quilt, hereinafter will be especially exemplified by the specific embodiment of the invention, and conjunction with figs., be described in detail below.
Fig. 2 discloses the stereogram of air outlet Flow guiding structure of the heat emission fan of first embodiment of the invention; Fig. 3 discloses the top view of air outlet Flow guiding structure of the heat emission fan of first embodiment of the invention; Fig. 4 discloses the cutaway view of the present invention along the A-A line of Fig. 3; Fig. 5 discloses the top view of air outlet Flow guiding structure of the heat emission fan of second embodiment of the invention; Fig. 6 discloses the cutaway view of the present invention along the B-B line of Fig. 5; Fig. 7 discloses the top view of air outlet Flow guiding structure of the heat emission fan of third embodiment of the invention; Fig. 8 discloses the cutaway view of the present invention along the C-C line of Fig. 7; Fig. 9 discloses the stereogram of air outlet Flow guiding structure of the heat emission fan of fourth embodiment of the invention; And Figure 10 discloses the top view of air outlet Flow guiding structure of the heat emission fan of fourth embodiment of the invention.
The part member of the air outlet Flow guiding structure of heat emission fan of the present invention is same as the casing structure of the known heat emission fan of Fig. 1, thereby both same sections employing same reference numbers signs, and its structure and function are no longer given in detail and being given unnecessary details.
Please refer to shown in Fig. 2 to 4, the air outlet Flow guiding structure of the heat emission fan of first embodiment of the invention comprises a housing 10, an air inlet 11, an air outlet 12, a pedestal 13 and several ribs 14.This housing 10 can be made by plastics or metal.This air inlet 11 and air outlet 12 are respectively formed at two examples of this housing 10.This pedestal 13 is positioned at air outlet 12 sides of this housing 10, for a ccontaining impeller 20 (as shown in Figure 4).This rib 14 being connected between this housing 10 and the pedestal 13 for radial concentric arrangement.This rib 14 is preferably and is the z font, that is this rib 14 is provided with one first diversion division 141, one first ring-type diversion division 142 and one second diversion division 143 radially radially at least.This first and second radially diversion division 141,143 form, and its inclination angle becomes positive correlation with the inclination angle of several blades 21 of this impeller 20.This first and second radially the inclination angle of diversion division 141,143 can select to form identical or different.This first ring-type diversion division 142 be parallel to this heat emission fan air outlet 12 axially, and be formed on the same concentric circles.Moreover this housing 10, pedestal 13 and rib 14 can be made by one-body molded mode, but also can utilize compound mode in conjunction with formation.
Referring again to shown in Figure 4, it discloses the illustrative view of rib 14 air-guidings of first embodiment of the invention.When 20 runnings of this impeller, the blade 21 of this impeller 20 can suck air-flows by the air inlet 11 of this housing 10, and this air-flow is discharged by this air outlet 12, so that desire heat radiation object (not shown, for example radiating fin or central processing unit) is dispelled the heat.When this air communication is crossed the rib 14 of this air outlet 12, because the inclination angle of first and second radially-directed portion 141,143 of this rib 14 becomes positive correlation with the inclination angle of this blade 21, therefore this first and second radially diversion division 141,143 can with this air-flow more smooth be directed to this air outlet 12 under, cross flow-disturbing, the sinuous flow that this rib 14 is produced can reduce air communication relatively, cut noise and promote blast relatively to reduce wind.Moreover the first ring-type diversion division 142 of this rib 14 can separate near this air outlet 12
The outer sidewind of the interior sidewind at center and close these air outlet 12 external diameter scopes.Particularly, when this first and second when radially diversion division 141,143 forms different angle, this first ring-type diversion division 142 can effectively reduce the probability that the medial and lateral air-flow interferes with each other.In addition, this rib 14 by this first radially diversion division 141, the first ring-type diversion division 142 and second diversion division 143 form the z glyph construction, it also can beautify relatively and decorate this heat emission fan, and promotes the surcharge of heat emission fan relatively.
Shown in Fig. 5 and 6, it discloses the air outlet Flow guiding structure of the heat emission fan of second embodiment of the invention.Compared to first embodiment, the rib 14 of first embodiment is that the axial formation outer radial of these first ring-type diversion division, 142 relative these air outlets 12 is tilted.By this, except this first and second radially diversion division 141,143 smoothnesses air-guiding and reduce the noise, this first ring-type diversion division 142 more can be directed to this air-flow the external diameter scope of this air outlet 12 synchronously.Therefore, not only can enlarge the heat radiation scope relatively, and also can make heat emission fan be applicable to that in limited assembling space (for example in notebook computer) certain air-flow is directed to is not positioned at the desire heat radiation object under this air outlet 12, or make heat emission fan be applicable to that the desire heat radiation object to having large-size dispels the heat more uniformly.Therefore, rib 14 of the present invention has the effect of air-guiding really.
Moreover, as shown in Figure 6, the river page or leaf the incline direction of this first ring-type diversion division 142, and this first ring-type diversion division 142 can dwindle the air side sectional area near these air outlet 12 external diameter scopes relatively, thereby this first ring-type diversion division 142 also has the effect that increases blast.On the other hand, owing to formed supercharging near the outer sidewind of these air outlet 12 external diameter scopes, so it also can impel the interior sidewind near these air outlet 12 centers to flow radially outward relatively, thereby increases the radiating airflow flow efficiency.
Shown in Fig. 7 and 8, it discloses the air outlet Flow guiding structure of the heat emission fan of third embodiment of the invention.Compared to first and two embodiment, the rib 14 of the 3rd embodiment is further to make in the axial formation of these first ring-type diversion division, 142 relative these air outlets 12 radially to tilt.By this, except this first and second radially diversion division 141,143 smoothnesses air-guiding and reduce the noise, this first ring-type diversion division 142 more can synchronously this air-flow be directed to this pedestal 13 under the position.Therefore, the relative radiating efficiency that increases the heat radiation of the desire under this pedestal 13 object.Moreover as shown in Figure 7, along the incline direction of this first ring-type diversion division 142, this first ring-type diversion division 142 can dwindle the air side sectional area near these air outlet 12 centers relatively, thereby this first ring-type diversion division 142 also has the effect that increases blast.On the other hand, owing to formed supercharging near the interior sidewind at these air outlet 12 centers, so it also can impel the outer sidewind near these air outlet 12 external diameter scopes radially inwardly to flow relatively, thereby increases the radiating airflow flow efficiency.
Shown in Fig. 9 and 10, it discloses the air outlet Flow guiding structure of the heat emission fan of fourth embodiment of the invention.Compared to first to three embodiment, the rib 14 of the 4th embodiment also forms the z font, but this rib 14 is further to set up radially diversion division 145 of one second ring-type diversion division 144 and the 3rd.This first, second and third diversion division the 141,143, the 145th radially forms and, and its inclination angle becomes positive correlation with the inclination angle of several blades 21 of this impeller 20 equally.This first, second and third radially the inclination angle of diversion division 141,143,145 also can select identical or different.With respect to the air outlet 12 of this heat emission fan axially, that this first and second ring- type diversion division 142 and 144 also can be selected to form on demand is parallel, outer radial tilts or interiorly radially tilt, and this first, second ring- type diversion division 142 and 144 also is formed on the same concentric circles.Take this, this first, second and third air-guiding that radially diversion division 141,143,145 can be smooth is cut noise to reduce wind.Simultaneously, this 142,144 of first and second ring-type diversion division can select with air-flow be directed to the external diameter scope of this air outlet 12 or this pedestal 13 under, concentrating radiating airflow, and increase radiating efficiency relatively to the desire heat radiation object of ad-hoc location.Moreover along the incline direction of this first and second ring-type diversion division 142,144, it also can dwindle the sectional area (shown in Fig. 6 and 8) of air side relatively, thereby this first and second ring-type diversion division 142,144 also has the effect that increases blast.
In addition, shown in Fig. 2 to 10, the present invention can radially diversion division 141,143 and several ring-type diversion division 142 air-guidings flow to by several, and this radially the big I in the anti-inclination angle of quantity, incline direction of diversion division 141,143 and ring-type diversion division 142 according to the size of the blade 21 of this impeller 20 and desire heat radiation object (as radiating fin), position, shape and radiating requirements be set changed, therefore also can increase the nargin of assembling and design relatively.
As mentioned above, easily form flow-disturbing, sinuous flow and can't air-guiding flow to and increase shortcoming such as blast at air outlet compared to the housing of the known heat emission fan of Fig. 1, the present invention of Fig. 2 can form several radially diversion division 141,143 and several ring-type diversion divisions 142 by the rib 14 at this air outlet 12 really, and makes the air outlet 12 of heat emission fan have the air-guiding flow direction, focused airflow, expansion heat radiation scope, increase blast, reduce the effect that wind is cut noise and increased assembling design nargin.
Though the present invention discloses with aforementioned preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, do not breaking away under the design of the present invention; when can doing various changes and modification, so protection scope of the present invention is as the criterion when looking the scope that claims define.
Claims (12)
1, a kind of air outlet Flow guiding structure of heat emission fan is characterized in that: its air outlet in a housing is provided with: a pedestal, and it is in order to carry an impeller, and this impeller has several blades; Several ribs, it is connected between this housing and the pedestal, this each rib is provided with one first diversion division, one first ring-type diversion division and one second diversion division radially radially at least, this first and second radially diversion division relatively the axial formation of this heat emission fan air outlet tilt, and this first ring-type diversion division is connected in this first and second radially between the diversion division, when the running of this impeller, but this first radially diversion division, ring-type diversion division and second radially the diversion division air-guiding flow to and increase blast relatively.
2, the air outlet Flow guiding structure of heat emission fan according to claim 1 is characterized in that: this first and second radially the inclination angle of diversion division is identical.
3, the air outlet Flow guiding structure of heat emission fan according to claim 1 is characterized in that: this first and second inclination angle difference of diversion division radially.
4, the air outlet Flow guiding structure of heat emission fan according to claim 1, it is characterized in that: the first ring-type diversion division of each rib is formed on the same concentric circles.
5, the air outlet Flow guiding structure of heat emission fan according to claim 1 is characterized in that: this first ring-type diversion division axial formation outer radial of the air outlet of this heat emission fan relatively tilts.
6, the air outlet Flow guiding structure of heat emission fan according to claim 1 is characterized in that: this first ring-type diversion division radially tilts in the axial formation of the air outlet of this heat emission fan relatively.
7, the air outlet Flow guiding structure of heat emission fan according to claim 1, it is characterized in that: this rib is provided with radially diversion division of one second ring-type diversion division and the 3rd in addition, and this second ring-type diversion division and the 3rd radially diversion division is connected in this second radially between diversion division and this housing.
8, as the air outlet Flow guiding structure of heat emission fan as described in the claim 7, it is characterized in that: this first, second and third radially the inclination angle of diversion division be identical.
9, as the air outlet Flow guiding structure of heat emission fan as described in the claim 7, it is characterized in that: this first, second and third radially the inclination angle of diversion division be different.
10, as the air outlet Flow guiding structure of heat emission fan as described in the claim 7, it is characterized in that: the second ring-type diversion division of each rib is formed on the same concentric circles.
11, as the air outlet Flow guiding structure of heat emission fan as described in the claim 7, it is characterized in that: this second ring-type diversion division axial formation outer radial of the air outlet of this heat emission fan relatively tilts.
12, as the air outlet Flow guiding structure of heat emission fan as described in the claim 7, it is characterized in that: this second ring-type diversion division radially tilts in the axial formation of the air outlet of this heat emission fan relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031537464A CN100341145C (en) | 2003-08-19 | 2003-08-19 | Air outlet flow guiding structure of radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031537464A CN100341145C (en) | 2003-08-19 | 2003-08-19 | Air outlet flow guiding structure of radiating fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1585117A CN1585117A (en) | 2005-02-23 |
| CN100341145C true CN100341145C (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031537464A Expired - Fee Related CN100341145C (en) | 2003-08-19 | 2003-08-19 | Air outlet flow guiding structure of radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100341145C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460692C (en) * | 2005-09-16 | 2009-02-11 | 台达电子工业股份有限公司 | Fan frame with flow guiding stator blade and fan |
| TWM539566U (en) * | 2016-11-21 | 2017-04-11 | 建準電機工業股份有限公司 | Frame of an axial fan |
| CN108180154B (en) * | 2017-12-27 | 2020-02-21 | 泛仕达机电股份有限公司 | Fan ripple support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6017191A (en) * | 1996-12-10 | 2000-01-25 | Papst-Motoren Gmbh & Co. Kg | Axial ventilator housing |
| CN1271818A (en) * | 1999-04-28 | 2000-11-01 | 建准电机工业股份有限公司 | Frame of cooling axial-flow fan |
| CN2471988Y (en) * | 2001-02-08 | 2002-01-16 | 元山科技工业股份有限公司 | Heat radiating fun |
| CN2528110Y (en) * | 2002-01-25 | 2002-12-25 | 富准精密工业(深圳)有限公司 | Radiator combination |
| CN2653189Y (en) * | 2003-09-24 | 2004-11-03 | 建准电机工业股份有限公司 | Air outlet flow guide structure of heat radiation fan |
-
2003
- 2003-08-19 CN CNB031537464A patent/CN100341145C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6017191A (en) * | 1996-12-10 | 2000-01-25 | Papst-Motoren Gmbh & Co. Kg | Axial ventilator housing |
| CN1271818A (en) * | 1999-04-28 | 2000-11-01 | 建准电机工业股份有限公司 | Frame of cooling axial-flow fan |
| CN2471988Y (en) * | 2001-02-08 | 2002-01-16 | 元山科技工业股份有限公司 | Heat radiating fun |
| CN2528110Y (en) * | 2002-01-25 | 2002-12-25 | 富准精密工业(深圳)有限公司 | Radiator combination |
| CN2653189Y (en) * | 2003-09-24 | 2004-11-03 | 建准电机工业股份有限公司 | Air outlet flow guide structure of heat radiation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1585117A (en) | 2005-02-23 |
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Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Patentee after: Sunonwealth Electric Machine Industry Co.,Ltd. Address before: Kaohsiung City, Taiwan, China Patentee before: Sunonwealth Electric Machine Industry Co.,Ltd. |
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Granted publication date: 20071003 Termination date: 20210819 |