CN2653189Y - Air outlet flow guide structure of heat radiation fan - Google Patents
Air outlet flow guide structure of heat radiation fan Download PDFInfo
- Publication number
- CN2653189Y CN2653189Y CN 03263179 CN03263179U CN2653189Y CN 2653189 Y CN2653189 Y CN 2653189Y CN 03263179 CN03263179 CN 03263179 CN 03263179 U CN03263179 U CN 03263179U CN 2653189 Y CN2653189 Y CN 2653189Y
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- China
- Prior art keywords
- exhaust outlet
- diversion division
- heat
- dissipating fan
- radially
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- Expired - Lifetime
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Abstract
The utility model discloses an air outlet air steam guarding structure used in cooling fan. A base seat and a plurality of ribs are formed at the air outlet of the shell. The base seat is used for bearing a fan spider. The radial direction of the rib is connected between the shell and the base seat. Each rib is at least provided with a first radial direction air steam guarding part, a first circular air steam guarding part and a second radial direction air steam guarding part. The first radial direction air steam guarding part and the second radial direction air steam guarding part inclines correspondingly to the vane of the fan spider. Besides, the first circular air steam guarding part is connected between the first radial direction air steam guarding part and the second radial direction air steam guarding part. The first circular air steam guarding part, the first radial direction air steam guarding part and the second radial direction air steam guarding part are able to guard the flowing direction of the air steam and add wind pressure relatively when the fan spider is in operating.
Description
Technical field
The utility model relates to a kind of exhaust outlet Flow guiding structure, be meant that especially a kind of rib of the exhaust outlet of heat-dissipating fan that makes forms several radially diversion division and several ring-type diversion divisions, cut the exhaust outlet Flow guiding structure of the heat-dissipating fan of noise with the air-guiding flow direction, increase blast and minimizing wind.
Background technique
The casing structure of known heat-dissipating fan, as shown in Figure 1, it comprises a housing 10, an intake grill 11, an exhaust outlet 12, a pedestal 13 and several ribs 14.Two sides of this housing 10 form this intake grill 11 and exhaust outlet 12.This pedestal 13 is by the firm exhaust 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-dissipating fan can be sucked air-flow and be discharged by this exhaust outlet 12 by this intake grill 11, so that a certain desire heat radiation object (for example radiating fin or central processing unit (CPU)) is dispelled the heat.
Though above-mentioned known heat-dissipating fan has heat sinking function really, the air-flow of this heat-dissipating fan usually only can along this housing 10 axially and via the discharge of taking advantage of a situation of this exhaust outlet 12, so that dispelled the heat in position under this exhaust outlet 12.Yet, if this desire heat radiation object fail to be positioned at this exhaust 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 exhaust outlet 12 peripheral, maybe when this desire heat radiation object have large-size and can't be in fully this heat-dissipating 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 design people has developed the utility model.
Summary of the invention
The main technical problems to be solved in the utility model provides a kind of exhaust outlet Flow guiding structure of heat-dissipating fan, its each rib at exhaust 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 exhaust outlet relatively respectively of ring-type diversion division radially, makes and the utlity model has air-guiding, increases blast, reduces the effect that wind is cut noise and promoted integral heat sink efficient.
Less important technical problem to be solved in the utility model provides a kind of exhaust outlet Flow guiding structure of heat-dissipating fan, and it makes each rib of exhaust outlet form several radially diversion division and at least one ring-type diversion divisions.By changing this radially true dip direction of diversion division and ring-type diversion division, can select air-flow is directed to arbitrary desire heat radiation position, the utlity model has the effect that promotes integral heat sink efficient and increase assembling design nargin to concentrate heat radiation or to enlarge the heat radiation scope, to make.
Another technical problem to be solved in the utility model provides a kind of exhaust outlet Flow guiding structure of heat-dissipating fan, it makes each rib of exhaust 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-dissipating fan, makes to the utlity model has the effect that promotes the heat-dissipating fan surcharge.
The technical solution of the utility model is: a kind of exhaust outlet Flow guiding structure of heat-dissipating fan, and wherein: its exhaust 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-dissipating fan exhaust 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 exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this first and second radially the inclination angle of diversion division is identical.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this first and second inclination angle difference of diversion division radially.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, the first ring-type diversion division of each rib is formed on the same concentric circle.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this first ring-type diversion division axial formation outer radial of the exhaust outlet of this heat-dissipating fan relatively tilt.
The exhaust outlet Flow guiding structure of heat-dissipating fan radially tilts in the axial formation of the exhaust outlet of relative this heat-dissipating fan of this first ring-type diversion division as mentioned above.
The exhaust outlet Flow guiding structure of heat-dissipating 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 exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this first, second and third radially the inclination angle of diversion division be identical.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this first, second and radially the inclination angle of diversion division be different.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, the second ring-type diversion division of each rib is formed on the same concentric circle.
The exhaust outlet Flow guiding structure of heat-dissipating fan as mentioned above, this second ring-type diversion division axial formation outer radial of the exhaust outlet of this heat-dissipating fan relatively tilt.
The exhaust outlet Flow guiding structure of heat-dissipating fan radially tilts in the axial formation of the exhaust outlet of relative this heat-dissipating fan of this second ring-type diversion division as mentioned above.
Characteristics of the present utility model and advantage are: the exhaust outlet Flow guiding structure of the heat-dissipating fan that the utility model proposes, it forms several radially diversion division and several ring-type diversion divisions on the rib of exhaust outlet, because this radially diversion division blade formation inclination of this impeller relatively, and this ring-type diversion division axial formation inclination of this exhaust outlet relatively, therefore this rib can be directed to air-flow arbitrary desire heat radiation position, and increases blast simultaneously relatively.Therefore, the utility model 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-dissipating fan;
Fig. 2 is the stereogram of exhaust outlet Flow guiding structure of the utility model first embodiment's heat-dissipating fan;
Fig. 3 is the plan view of exhaust outlet Flow guiding structure of the utility model first embodiment's heat-dissipating fan;
Fig. 4 is the sectional view of the utility model along the A-A line of Fig. 3;
Fig. 5 is the plan view of exhaust outlet Flow guiding structure of the utility model second embodiment's heat-dissipating fan;
Fig. 6 is the sectional view of the utility model along the B-B line of Fig. 5;
Fig. 7 is the plan view of exhaust outlet Flow guiding structure of the utility model the 3rd embodiment's heat-dissipating fan;
Fig. 8 is the sectional view of the utility model along the C-C line of Fig. 7;
Fig. 9 is the stereogram of exhaust outlet Flow guiding structure of the utility model the 4th embodiment's heat-dissipating fan;
Figure 10 is the plan view of exhaust outlet Flow guiding structure of the utility model the 4th embodiment's heat-dissipating fan.
The drawing reference numeral explanation:
10, housing 11, intake grill 12, exhaust 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 utility model, feature and advantage understand by clearer and more definite quilt, hereinafter will be especially exemplified by the utility model specific embodiment, and conjunction with figs., be described in detail below.
Fig. 2 discloses the stereogram of exhaust outlet Flow guiding structure of the utility model first embodiment's heat-dissipating fan; Fig. 3 discloses the plan view of exhaust outlet Flow guiding structure of the utility model first embodiment's heat-dissipating fan; Fig. 4 discloses the sectional view of the utility model along the A-A line of Fig. 3; Fig. 5 discloses the plan view of exhaust outlet Flow guiding structure of the utility model second embodiment's heat-dissipating fan; Fig. 6 discloses the sectional view of the utility model along the B-B line of Fig. 5; Fig. 7 discloses the plan view of exhaust outlet Flow guiding structure of the utility model the 3rd embodiment's heat-dissipating fan; Fig. 8 discloses the sectional view of the utility model along the C-C line of Fig. 7; Fig. 9 discloses the stereogram of exhaust outlet Flow guiding structure of the utility model the 4th embodiment's heat-dissipating fan; And Figure 10 discloses the plan view of exhaust outlet Flow guiding structure of the utility model the 4th embodiment's heat-dissipating fan.
The part member of the exhaust outlet Flow guiding structure of the utility model heat-dissipating fan is same as the casing structure of the known heat-dissipating 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 exhaust outlet Flow guiding structure of the utility model first embodiment's heat-dissipating fan comprises a housing 10, an intake grill 11, an exhaust outlet 12, a pedestal 13 and several ribs 14.This housing 10 can be made by plastics or metal.This intake grill 11 and exhaust outlet 12 are respectively formed at the both sides of this housing 10.This pedestal 13 is positioned at exhaust 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 zigzag, 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-dissipating fan exhaust outlet 12 axially, and be formed on the same concentric circle.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 the utility model first embodiment's rib 14 air-guidings.When 20 runnings of this impeller, the blade 21 of this impeller 20 can suck air-flows by the intake grill 11 of this housing 10, and this air-flow is discharged by this exhaust outlet 12, so that desire heat radiation object (not shown, for example radiating fin or central processing unit (CPU)) is dispelled the heat.When this air communication is crossed the rib 14 of this exhaust 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 exhaust 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 the outer sidewind near the interior sidewind at these exhaust outlet 12 centers and close these exhaust 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 zigzag structure, it also can beautify relatively and decorate this heat-dissipating fan, and promotes the surcharge of heat-dissipating fan relatively.
Shown in Fig. 5 and 6, it discloses the exhaust outlet Flow guiding structure of the utility model second embodiment's heat-dissipating fan.Compared to first embodiment, first embodiment's rib 14 is that the axial formation outer radial of these first ring-type diversion division, 142 relative these exhaust 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 exhaust outlet 12 synchronously.Therefore, not only can enlarge the heat radiation scope relatively, and also can make heat-dissipating 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 exhaust outlet 12, or make heat-dissipating 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 utility model has the effect of air-guiding really.
Moreover, as shown in Figure 6, along the true dip 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 exhaust 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 exhaust outlet 12 external diameter scopes, so it also can impel the interior sidewind near these exhaust outlet 12 centers to flow radially outward relatively, thereby increases the radiating airflow flow efficiency.
Shown in Fig. 7 and 8, it discloses the exhaust outlet Flow guiding structure of the utility model the 3rd embodiment's heat-dissipating fan.Compared to first and two embodiments, the 3rd embodiment's rib 14 is further to make in the axial formation of these first ring-type diversion division, 142 relative these exhaust 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 true dip 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 exhaust 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 exhaust outlet 12 centers, so it also can impel the outer sidewind near these exhaust 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 exhaust outlet Flow guiding structure of the utility model the 4th embodiment's heat-dissipating fan.Compared to first to three embodiment, the 4th embodiment's rib 14 also forms zigzag, 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 exhaust outlet 12 of this heat-dissipating 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 another concentric circle.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 exhaust outlet 12 or this pedestal 13 under, concentrating radiating airflow, and increase radiating efficiency relatively to the desire heat radiation object of special position.Moreover along the true dip 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 utility model 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, true dip 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 exhaust outlet compared to the housing of the known heat-dissipating fan of Fig. 1, the utility model of Fig. 2 can form several radially diversion division 141,143 and several ring-type diversion divisions 142 by the rib 14 at this exhaust outlet 12 really, and makes the exhaust outlet 12 of heat-dissipating 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 utility model discloses with aforementioned preferred embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; do not breaking away under the design of the present utility model; when can doing various changes and modification, therefore protection domain of the present utility model is as the criterion when looking the scope that claims define.
Claims (12)
1, a kind of exhaust outlet Flow guiding structure of heat-dissipating fan is characterized in that: its exhaust outlet in a housing is provided with:
One pedestal, it can 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-dissipating fan exhaust outlet tilt, and this first ring-type diversion division is connected in this first and second radially between the diversion division.
2, the exhaust outlet Flow guiding structure of heat-dissipating fan according to claim 1 is characterized in that: this first and second radially the inclination angle of diversion division is identical.
3, the exhaust outlet Flow guiding structure of heat-dissipating fan according to claim 1 is characterized in that: this first and second inclination angle difference of diversion division radially.
4, the exhaust outlet Flow guiding structure of heat-dissipating 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 circle.
5, the exhaust outlet Flow guiding structure of heat-dissipating fan according to claim 1 is characterized in that: this first ring-type diversion division axial formation outer radial of the exhaust outlet of this heat-dissipating fan relatively tilts.
6, the exhaust outlet Flow guiding structure of heat-dissipating fan according to claim 1 is characterized in that: this first ring-type diversion division radially tilts in the axial formation of the exhaust outlet of this heat-dissipating fan relatively.
7, the exhaust outlet Flow guiding structure of heat-dissipating 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 exhaust outlet Flow guiding structure of heat-dissipating fan as described in the claim 7, it is characterized in that: first, second and third radially the inclination angle of diversion division is identical for this.
9, as the exhaust outlet Flow guiding structure of heat-dissipating fan as described in the claim 7, it is characterized in that: this first, second and third inclination angle difference of diversion division radially.
10, as the exhaust outlet Flow guiding structure of heat-dissipating 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 circle.
11, as the exhaust outlet Flow guiding structure of heat-dissipating fan as described in the claim 7, it is characterized in that: this second ring-type diversion division axial formation outer radial of the exhaust outlet of this heat-dissipating fan relatively tilts.
12, as the exhaust outlet Flow guiding structure of heat-dissipating 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 exhaust outlet of this heat-dissipating fan relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263179 CN2653189Y (en) | 2003-09-24 | 2003-09-24 | Air outlet flow guide structure of heat radiation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263179 CN2653189Y (en) | 2003-09-24 | 2003-09-24 | Air outlet flow guide structure of heat radiation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653189Y true CN2653189Y (en) | 2004-11-03 |
Family
ID=34329526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03263179 Expired - Lifetime CN2653189Y (en) | 2003-09-24 | 2003-09-24 | Air outlet flow guide structure of heat radiation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653189Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007107034A1 (en) * | 2006-03-17 | 2007-09-27 | Acxing Industrial Co., Ltd. | Supplemental exhaust structure and method |
| CN100341145C (en) * | 2003-08-19 | 2007-10-03 | 建准电机工业股份有限公司 | Air outlet flow guiding structure of radiating fan |
| US20180142708A1 (en) * | 2016-11-21 | 2018-05-24 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan Frame of an Axial-Flow Fan |
| CN109373463A (en) * | 2018-11-05 | 2019-02-22 | 珠海格力电器股份有限公司 | Fan blade and air-conditioning assembly |
-
2003
- 2003-09-24 CN CN 03263179 patent/CN2653189Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341145C (en) * | 2003-08-19 | 2007-10-03 | 建准电机工业股份有限公司 | Air outlet flow guiding structure of radiating fan |
| WO2007107034A1 (en) * | 2006-03-17 | 2007-09-27 | Acxing Industrial Co., Ltd. | Supplemental exhaust structure and method |
| US20180142708A1 (en) * | 2016-11-21 | 2018-05-24 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan Frame of an Axial-Flow Fan |
| CN108087338A (en) * | 2016-11-21 | 2018-05-29 | 建准电机工业股份有限公司 | fan frame of axial flow fan |
| US10738796B2 (en) * | 2016-11-21 | 2020-08-11 | Sunonwealth Electric Machine Industry Co., Ltd. | Fan frame of an axial-flow fan |
| CN109373463A (en) * | 2018-11-05 | 2019-02-22 | 珠海格力电器股份有限公司 | Fan blade and air-conditioning assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20030924 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |