Summary of the invention
Main purpose of the present invention provides a kind of heat-dissipating fan of tool flow guiding air outlet, and it is provided with at least two guide rings at the housing exhaust outlet, and each guide ring has various axial inclination respectively, but air-guiding, increases blast, concentrates radiating airflow; Can enlarge the heat radiation scope again, the desire heat radiation object bigger to size dispels the heat uniformly and effectively.Therefore, can reduce the heat radiation pectinid and cut noise, promote the integral heat sink efficient of heat-dissipating fan.
Secondary objective of the present invention provides a kind of heat-dissipating fan of tool flow guiding air outlet, and its each gusset is the wind dispelling direction inclination along the impeller blade, has the effect of air-guiding.Simultaneously, the several gusset sections between each gusset can be designed to various inclination angles on demand, and then promote air current flow, therefore, can increase the nargin of assembling and design relatively, also can reduce the heat radiation pectinid and cut noise, promote the integral heat sink efficient of heat-dissipating fan.
Another purpose of the present invention provides a kind of heat-dissipating fan of tool flow guiding air outlet, and the angle of inclination of each guide ring of its arranged in co-axial alignment can be designed on demand, and user Ke Yi need select air-flow is directed to arbitrary desire heat radiation position, to concentrate radiating airflow, improves radiating efficiency; Also can select the dispersed gas flow pattern, enlarge the heat radiation scope, promote the nargin of integral heat sink efficient and assembling design.
Technological scheme of the present invention:
A kind of heat-dissipating fan of tool flow guiding air outlet; Mainly comprise: both sides are respectively equipped with the housing of intake grill and exhaust outlet; One is fixedly arranged on this housing exhaust outlet middle pedestal, each gusset by the number gusset is connected between this housing and the pedestal radially; One fan is set on this pedestal, and this fan has a stator, an impeller and several blades; It is characterized in that:
On each gusset between this pedestal and the housing; Coaxial rings is provided with at least two guide rings; Each guide ring relatively this housing axially to extending below and make different direction to external diameter or internal diameter simultaneously, and this guide ring different axial inclination of axial formation of this housing relatively respectively respectively.
Perhaps; On each gusset between this pedestal and the housing; Be equipped with at least two first guide rings and at least two second guide rings; And each second guide ring is located between each first guide ring and the pedestal: each first guide ring and relative this housing of each second guide ring axially to extending below; And be to be in opposite directions or the inclination of opposing direction, the wherein different axial inclination of axial formation of respectively relative this housing of each first guide ring, and each second guide ring difference is the different axial inclination of axial formation of this housing relatively.Again perhaps; On each gusset between this pedestal and the housing; Be equipped with at least one first guide ring and at least one second guide ring; And second guide ring is located between first guide ring and the housing: first guide ring is provided with an inner ring surface and an outer ring surface, and this inner ring surface is to extending below and tilting to internal diameter direction, and this outer ring surface is to extending below and tilting to the external diameter direction; Second guide ring is provided with an inner ring surface and an outer ring surface, and this inner ring surface is to extending below and tilting to internal diameter direction, and this outer ring surface is to extending below and tilting to the external diameter direction; The inner ring surface of first guide ring and second guide ring relatively this housing axially be formed with axial inclination, and the outer ring surface of this first guide ring and second guide ring is different axial inclination.The invention has the advantages that:
1, because on each gusset between this pedestal and the housing; Be equipped with at least two different guide rings, when air-flow when the housing exhaust outlet is discharged, air communication is crossed each guide ring and each gusset; Air-flow is directed to its inner region, zone line and perimeter respectively; Can guarantee special position is concentrated heat radiation, or in limited assembling space, air-flow is directed to the desire heat radiation object that is positioned under the exhaust outlet.Get final product air-guiding, increase exhaust outlet place air pressure, concentrate radiating airflow, increase radiating efficiency desire heat radiation object.Can enlarge the heat radiation scope again, the desire heat radiation object with large-size is dispelled the heat uniformly and effectively.Therefore, can reduce the heat radiation pectinid and cut noise, promote the integral heat sink efficient of heat-dissipating fan.
2, because each gusset is the wind dispelling direction inclination along the impeller blade, so each gusset has the effect of air-guiding.Simultaneously, the several gusset sections between each gusset can be designed to various inclination angles on demand, and then promote air current flow, therefore, can increase assembling and design margin relatively.
3, because the angle of inclination of each guide ring of arranged in co-axial alignment can change on demand, the required selection of user Ke Yi is directed to arbitrary desire heat radiation position with air-flow, to concentrate radiating airflow, improves radiating efficiency; Also can select the dispersed gas flow pattern, enlarge the heat radiation scope, promote the nargin of integral heat sink efficient and assembling design.
Embodiment
For letting the object of the invention, technical characteristics and advantage thereof, can more clearly be understood, hereinafter is special lifts preferred embodiment of the present invention, and conjunction with figs. specifies as follows:
The partial component of housing of the present invention is identical with the housing of commonly using heat-dissipating fan, thereby both same sections employing same numerals, and its structure and function are given unnecessary details no longer in detail.
Please with reference to shown in Fig. 2-5, first embodiment of the invention, a kind of heat-dissipating fan of tool flow guiding air outlet mainly comprises a housing 10, an intake grill 11, an exhaust outlet 12, a pedestal 13, several gussets 14 and at least two guide ring 15a, 15b.This housing 10 is processed by plastics or metal.This intake grill 11 and exhaust outlet 12 are arranged at the both sides of this housing 10 respectively.This pedestal 13 is positioned in the middle of the exhaust outlet 12 of this housing 10, on this pedestal 13 fan is set, and this fan has a stator, an impeller 20 and several blades 21 (as shown in Figure 4).Each gusset 14 is connected between this housing 10 and the pedestal 13 radially with one heart.Each guide ring 15a, 15b coaxial rings are located on each gusset 14, between this pedestal 13 and housing 10 (as shown in Figure 4).This guide ring 15a is parallel to the ringwall (not shown) of this housing 10, simultaneously this guide ring 15b relatively this housing 10 axially to extending below and to external diameter direction tilt (as shown in Figure 4).Form an axial inclination between this guide ring 15b and the guide ring 15a.In addition, each guide ring 15 extends through each gusset 14 and is fixedly arranged on each gusset 14.(as shown in Figure 5); This guide ring 15a is preferable greater than its radial width W in the axial length L of the relative housing 10 of exhaust outlet 12 sides; And this guide ring 15a is provided with a circular-arc diversion division 150 on the top near the inlet side of housing 10, produce flow-disturbing and sinuous flow to reduce.Moreover each gusset 14 also can form along the wind dispelling direction of several blades 21 of impeller 20.
Please with reference to shown in Figure 4, this figure is the action schematic representation of each guide ring 15 air-guiding again.During these impeller 20 runnings, its blade 21 sucks air-flow by the intake grill 11 of housing 10, and orders about this air-flow and discharged by exhaust outlet 12, so that to desire heat radiation object (not shown), dispel the heat like radiating fin or central processing unit (CPU).When this air communication was crossed guide ring 15a and each gusset 14 of exhaust outlet 12, will the flow through air-flow of exhaust outlet 12 of this guide ring 15a was guided respectively and is got into an inner region 17 and a perimeter 16.This inner region 17 is towards the central position of exhaust outlet 12; 16 the external diameter directions in this perimeter towards exhaust outlet 12, and between each gusset 14 and housing 10.Therefore, heat-dissipating fan can be guaranteed special position is concentrated heat radiation, or is applicable in limited assembling space (as in mobile computer), air-flow is directed to the desire heat radiation object that is positioned under the exhaust outlet 12.So guide ring 15a of the present invention, 15b have the effect of air-guiding really.
Moreover like Fig. 2, shown in 3, when each gusset 14 forms when tilting along the wind dispelling direction of the blade 21 of this impeller 20, each gusset 14 also has the effect that air-guiding flows to.Simultaneously,, that is distinguish separated different sections, can be designed to various inclination angles on demand by each guide ring 15a, 15b at several gusset section 14a, 14b, the 14c of 14 of each gussets.
Please with reference to shown in Fig. 6-8, the structure of second embodiment of the invention and first embodiment are basic identical, and difference is: its each guide ring 15a, the relative pedestal 13 of 15b are to extending below and to the different direction of external diameter tilt (as shown in Figure 8).The various inclination angles of axial formation of each guide ring 15a, the relative housing 10 of 15b.
Please refer again to shown in Figure 8ly, during 20 runnings of this impeller, its blade 21 sucks air-flows by the intake grill 11 of housing 10, and orders about this air-flow and discharged by exhaust outlet 12, so that to desire heat radiation object (not shown), dispel the heat like radiating fin or central processing unit (CPU).When this air communication is crossed guide ring 15a, 15b and each gusset 14 of exhaust outlet 12,, can air-flow be guided into an inner region 17 and a perimeter 16 respectively because that each guide ring 15a, 15b have is different from the inclination angle of external diameter direction.These inner region 17 contiguous pedestals 13; This perimeter 16 is outside the external diameter direction of exhaust outlet 12.Therefore; This heat-dissipating fan can enlarge the heat radiation scope; Perhaps be applicable in limited assembling space (as in mobile computer), air-flow is directed to the desire heat radiation object that is not positioned under the exhaust outlet 12, or be applicable to that the desire heat radiation object to having large-size dispels the heat more uniformly.Therefore, each guide ring 15a of the present invention, 15b have the effect of air-guiding really.
Moreover as shown in Figure 8, along the true dip direction of each guide ring 15a, 15b, each guide ring 15a, 15b form various inclination angles, can increase the blast at exhaust outlet 12 places relatively.On the other hand because near the perimeter 16 of exhaust outlet 12, because of each guide ring 15a, 15b to extending below and tilt also to have the supercharging effect to the external diameter direction, thereby the effect of focused airflow is provided, and then increases the efficient of air current flow.
In addition, as shown in Figure 6, when each gusset 14 is that each gusset 14 also has the effect that air-guiding flows to when the blade 21 wind dispelling directions of impeller 20 form inclination.Simultaneously, at gusset section 14a, 14b, the 14c of each gusset 14, that is be to distinguish separated different sections by each guide ring 15a, 15b, can be designed to various inclination angles on demand.
Please refer again to shown in Figure 9ly, the structure of third embodiment of the invention and first and second embodiment are basic identical, and difference is: its each guide ring 15a, the relative exhaust outlet 12 of 15b are to extending below and tilting to internal diameter direction.Each guide ring 15a, the relative housing 10 of 15b axially be formed with the inclination angle.Therefore, each guide ring 15a, 15b can be directed to its inner region 17 with air-flow, that is under the pedestal 13 of this housing 10, so that increase the radiating efficiency to the heat radiation of the desire under this pedestal 13 object relatively.Moreover along the true dip direction of each guide ring 15a, 15b, each guide ring 15a, 15b form various inclination angles, with the blast at these exhaust outlet 12 places of relative increase.On the other hand; Because near the inner region 17 at these exhaust outlet 12 places, because of each guide ring 15a, 15b to extending below and tilting also to have the supercharging effect, therefore to internal diameter direction; Can impel air-flow inwardly to flow relatively, but and focused airflow is dispelled the heat near the perimeter 16 at exhaust outlet 12 places.
Please refer again to shown in Figure 10ly, the structure of fourth embodiment of the invention and first to three embodiment are basic identical, and difference is: it is provided with two guide rings 15 ' and 15a, and this guide ring 15 ' is provided with an inner ring surface 151 and an outer ring surface 152.This inner ring surface 151 is to extending below and tilting to internal diameter direction, and this outer ring surface 152 is to extending below and tilting to the external diameter direction.It is preferable that the cross section of this guide ring 15 ' is triangular shape, and the inner ring surface 151 and the outer ring surface 152 of this guide ring 15 ' are linked by an ansa portion 153 jointly each other.Therefore, this guide ring 15 ' is guided into an inner region 17 and a perimeter 16 with air-flow respectively.This inner region 17 is under pedestal 13; And this perimeter 16 is outside the external diameter direction of this exhaust outlet 12.Can enlarge the heat radiation scope and increase radiating efficiency relatively desire heat radiation object under this pedestal 13.Inner ring surface 151, the outer ring surface 152 of this guide ring 15 and guide ring 15 ' have various different angle.So can dwindle the sectional area of air side relatively, thereby two guide ring 15a, 15 ' also have the effect of the blast that increases exhaust outlet 12 places.
Please refer again to shown in Figure 11-13, the structure of fifth embodiment of the invention and first to fourth embodiment are basic identical, and difference is: it is provided with four guide rings.On each gusset 14, be provided with a pair of first group of guide ring 15a, 15a ' and a pair of second group of guide ring 15b, 15b ', first group and second group of guide ring 15a, 15a ', 15b, 15b ' are located between pedestal 13 and the housing 10, and extend through each gusset 14.Moreover second group of guide ring 15b, 15b ' are positioned between pedestal 13 and first group of guide ring 15a, the 15a '.
First group of guide ring 15a, 15a ' relatively housing 10 axially to extending below and tilt to internal diameter direction, and first group of guide ring 15a, 15a ' have various inclination angles.Second group of guide ring 15b, 15b ' relatively housing 10 axially to extending below and tilt to the external diameter direction, and second group of guide ring 15b, 15b ' have different inclination angles.One gap 19 is formed between first group of guide ring 15a and the second group of guide ring 15b (shown in figure 13), and each gusset is along the blade wind dispelling direction of this impeller and form inclination.
Therefore; First and second group guide ring 15a, 15a ', 15b, 15b ' are directed to the zone line 18 under this gap 19 with air-flow; That is between first and second group guide ring 15a, 15a ', 15b, 15b ' under; To concentrate radiating airflow, further increase heat radiation function to this regional desire heat radiation object.Moreover along the true dip direction of first group and second group of guide ring 15a, 15a ', 15b, 15b ', first group of guide ring 15a, 15a ' or second group of guide ring 15b, 15b ' are formed with different axial inclination, with the blast at relative increase exhaust outlet 12 places.On the other hand; Because the air-flow of this zone line 18 has formed supercharging; Therefore it also can impel the air-flow of this inner region 17 and perimeter 16 to tend to flow between first group of guide ring 15a, 15a ' and second group of guide ring 15b, the 15b ' relatively; That is the zone flows under this gap 19, thereby be convenient to focused airflow and dispel the heat.
Please refer again to shown in Figure 14; The structure of sixth embodiment of the invention and the 5th embodiment are basic identical; Difference is: its first group of guide ring 15a, 15a ' relatively exhaust outlet 12 axially to extending below and tilt to the external diameter direction, and second group of guide ring 15b, 15b ' relatively exhaust outlet 12 axially to extending below and tilting to internal diameter direction.
Therefore, can the air-flow of inner region 17 be directed to pedestal 13 under, the air-flow of perimeter 16 is directed to outside the external diameter direction of exhaust outlet 12.So heat-dissipating fan can enlarge the heat radiation scope, or is applicable in limited assembling space, air-flow is directed to the desire heat radiation object that is positioned under the exhaust outlet 12, or is applicable to that the desire heat radiation object to having large-size dispels the heat more uniformly.Moreover along the true dip direction of this first group and second group of guide ring 15a, 15a ', 15b, 15b ', this first group of guide ring 15a, 15a ' or second group of guide ring 15b, 15b ' have various inclination angles, with the blast at these exhaust outlet 12 places of relative increase.On the other hand; Owing to also have the supercharging effect towards inner zone 17 and perimeter 16 airflow flowing; Therefore it also can impel this zone line 18 relatively; That is be positioned at air-flow trend pedestal 13 between this first and second guide ring 15a, 15a ', 15b, the 15b ' under flow, but thereby focused airflow dispel the heat.
Please refer again to shown in Figure 15ly, the structure of seventh embodiment of the invention and the 5th, six embodiments are basic identical, and difference is: its first guide ring 15 ' is provided with an inner ring surface 154 and an outer ring surface 155.This inner ring surface 154 is to extending below and tilting to internal diameter direction, and this outer ring surface 155 is to extending below and tilting to the external diameter direction.It is preferable that the cross section of this first guide ring 15 ' is triangular shape, and the inner ring surface 154 and the outer ring surface 155 of this first guide ring 15 ' are linked by an ansa portion 158 jointly each other.This second guide ring 15 " be provided with an inner ring surface 156 and an outer ring surface 157, this inner ring surface 156 is to extending below and tilting to internal diameter direction, and this outer ring surface 157 tilts to the external diameter direction.This second guide ring 15 " to be triangular shape preferable in the cross section, this second guide ring 15 " inner ring surface 156 link each other by an ansa portion 159 jointly with outer ring surface 157.This first and second guide ring 15 ', 15 " inner ring surface 154,156 can be various axial inclination.This first and second guide ring 15 ', 15 " outer ring surface 155,157 also can be various axial inclination.
Therefore, this first and second guide ring 15 ', 15 " can be respectively this air-flow be directed to an inner region 17, a zone line 18 and a perimeter 16.This inner region 17 is under pedestal 13; This zone line 18 is positioned at this first and second guide ring 15 ', 15 " between; This perimeter 16 is outside the external diameter direction of exhaust outlet 12.So can enlarge the heat radiation scope.Moreover; Along this first and second guide ring 15 ', 15 " true dip direction; this first and second guide ring 15 ', 15 " inner ring surface 154,156 or outer ring surface 155,157 have various inclination angles, dwindling the sectional area of air side relatively, thereby also have the effect that increases blast.
In addition; Shown in Fig. 2-15; The present invention flows to by at least two guide rings 15 air-guidings; And the big I in the quantity of this guide ring 15, true dip direction and inclination angle according to the size of the blade 21 of this impeller 20 and desire heat radiation object (like radiating fin), position, shape and radiating requirements be set change, therefore, also can increase the nargin of assembling and design relatively.
As stated, be prone to form flow-disturbing, sinuous flow compared to the housing of commonly using heat-dissipating fan at exhaust outlet, and can't air-guiding flow to and increase shortcoming such as blast, the present invention really can be by at least two guide rings 15 that are provided with at housing 10 exhaust outlets 12, and make heat radiation
Fan-out air port 12 has the air-guiding flow direction, focused airflow, expansion heat radiation scope, increases blast, reduces the effect that wind is cut noise and increased assembling design nargin.
Though the present invention has utilized above-mentioned preferred embodiment to disclose; Right its is not in order to limiting practical implementation of the present invention, anyly has the knack of this art, do not breaking away within the spirit and scope of the present invention; Various changes and the modification done all should be forgiven within the protection domain of these claims.