CN103225628A - Fan frame of axial-flow type cooling fan - Google Patents
Fan frame of axial-flow type cooling fan Download PDFInfo
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- CN103225628A CN103225628A CN2013101083721A CN201310108372A CN103225628A CN 103225628 A CN103225628 A CN 103225628A CN 2013101083721 A CN2013101083721 A CN 2013101083721A CN 201310108372 A CN201310108372 A CN 201310108372A CN 103225628 A CN103225628 A CN 103225628A
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Abstract
The invention relates to a fan frame of an axial-flow type cooling fan. The fan frame comprises a frame body, a bearing seat and a plurality of static blades, wherein an air inlet and an air outlet are formed in the frame body; the bearing seat is located at the air outlet of the frame body; one end of each static blade is connected with the bearing seat, and the other end of each static blade is connected with an inner side circumferential wall of the frame body; besides, an included angle is formed between every two adjacent static blades, each included angle has an angle value, and a plurality of included angles formed by a plurality of static blades respectively have more than two kinds of angle values, so that the static blades can be ranked at different intervals. Therefore, when airflow passes through the static blades, noises with the same vibrational frequency are difficult to produce.
Description
Technical field
The present invention is about a kind of fan frame structure, especially a kind of fan frame with axial-flow type radiator fan of stator blade design.
Background technique
The impeller of at present common on the market radiation fan all has several blades, and respectively this blade has an angle each other respectively, and respectively the angle of this angle is identical.Therefore, carry out in the process of thermolysis, then be easy to generate the noise (Tone) of identical vibration frequency, and further form the noise of single-frequency via the transmission of air at each vane drive air-flow of this impeller.
As TaiWan, China application case number No. 97132907 " heat radiating fan wheel " patent of invention, be about to the angle that is designed to have different amount between each blade of impeller, make this impeller carry out in the process of thermolysis at the extraneous air-flow of driving, respectively this blade is difficult for producing the noise (Tone) of identical vibration frequency each other, so really can further reduce the intensity of the single-frequency noise that is produced.Yet, should existing impeller also because the angle angle difference of this blade respectively, cause the complexity of the follow-up balance correction operation of this impeller to improve relatively, and must spend angle correct or transient equiliblium test that more human resources are carried out each blade of this impeller, so the economic benefit of not meeting.In addition, again with the fan frame of general common existing axial-flow type radiator fan, it has the design of stator blade usually, but relevant practitioner's thinking is not arranged at present yet how by the design of stator blade, makes each blade be difficult for the noise (Tone) of the identical vibration frequency of generation each other.
Again, as 2005/0175483A1 number " CONVEYING MEMBER of the U.S., ESPECIALLY ROTOR OR STATOR, FOR CONVEYING A FLOWABLE, PREFERABLY GASEOUS MEDIUM " patent of invention, disclose a delivery wheel 80(conveying wheel) have several blades S1～S7, respectively this blade S1～S7 distribution mode distributes in regular turn according to the central point A of delivery wheel 10, respectively this blade S1～S7 along the circumferential direction U between two blades, have 〝 circumferential distance a 〞 or 〝 circumferential distance b 〞; Yet, since should existing delivery wheel 8(is impeller) each blade S1～S7 have different 〝 circumferential distance 〞, therefore, can cause this delivery wheel 80(equally is impeller) complexity of follow-up balance correction operation improves relatively, and also must spending more human resources, to carry out this delivery wheel 80(be impeller) angle correct or the transient equiliblium test of each blade S1～S7.
Announce " fan forced inducer device " novel patent No. 488497 as TaiWan, China, disclose a kind of fan frame structure with stator blade.Please refer to shown in Figure 2, this fan frame 90 has a housing 91, these housing 91 inboards have a placing part 92, this placing part 92 can be in conjunction with a flabellum 93, and this placing part 92 connects the flow guide device of being made up of several stator blades 941 94, each stator blade 941 is distributed in around this placing part 92 with radial, in order to derive the air-flow that these flabellum 93 rotations are produced, to strengthen the blast of this air-flow.
Yet, because flow guide device 94 formed each stator blade 941 of existing fan frame 90 are all equidistant arrangement setting, also promptly these several stator blade 941 formed several angles angle value each other is all identical, therefore, when driving air communication, crosses in the process of this stator blade 941 respectively this flabellum 93, though can add the blast of air blast, but produce the noise (Tone) of identical vibration frequency also easily because of the design of equidistant each stator blade of arranging, and can further form the noise of single-frequency via the transmission of air, so still have necessity of being improved.
Again, as I276743 number " the fan frame and the fan of tool flow-guiding stator blade " patent of invention of TaiWan, China certificate.This fan frame also has several stator blades of equidistant arrangement, and between per two stator blades, the inner edge from this fan frame respectively extends a wing conducting element again; By the collocation between each wing conducting element and each stator blade, reducing the generation of turbulent flow, and then reduce air communication and cross the issuable noise of each stator blade.Yet, though should utilize each wing conducting element to reach the function that reduces noise by existing fan frame, but must form several wing conducting elements in addition at this inner edge of fanning frame also, thus cause this fan frame to make being difficult in the moulding, and cause the increase of the manufacture cost of this fan frame relatively.
Again, as M287387 number " the fan frame and the fan of tool flow-guiding stator blade " novel patent of TaiWan, China certificate, this fan frame also has several stator blades of equidistant arrangement, and wherein each stator blade surface has at least one conducting element that along the circumferential direction extends; By the rectification effect of each conducting element, still can reduce air communication and cross the issuable noise of each stator blade.Yet this existing fan frame is necessary in addition in each this conducting element of stator blade surface forming, therefore, can cause this fan frame to make being difficult for and its manufacture cost of increase in moulding equally.
In sum, with the identical existing impeller of the angle angle of each blade, in driving the process that air-flow carries out thermolysis, be easy to generate the noise (Tone) of identical vibration frequency; Again with the different existing impeller of the angle angle of each blade or have the existing impeller 80 of different 〝 circumferential distance 〞, perhaps can solve the problem of the noise (Tone) that produces identical vibration frequency, but further cause the angle correct or the transient equiliblium test of each blade difficult more, even because this impeller is difficult for finishing the balance correction operation, so may cause the product quality of this impeller not good, cause in actual rotary course, the phenomenon of double swerve takes place easily, under long-time running, may cause the associated components of this impeller to damage.Moreover, because existing impeller all is installed in the fan frame with the operation of dispelling the heat, but each stator blade that has the fan frame structure of stator blade at present is all the design of equidistant arrangement, there is not relevant practitioner's thinking will how to improve fan frame structure with stator blade yet, to solve in the impeller operation process, be easy to generate the noise shortcomings such as (Tone) of identical vibration frequency, generally speaking, truly have improved necessity in addition.
Summary of the invention
The invention provides a kind of fan frame of axial-flow type radiator fan, arrange several stator blades that are provided with,, be main goal of the invention to be easy to generate the problem of the noise (Tone) of identical vibration frequency in effective reduction impeller operation process by non-same spacing.
For reaching aforementioned goal of the invention, the technological means that the present invention used provides a kind of fan frame of axial-flow type radiator fan, comprise a framework, a load bearing seat and several stator blades, this framework has a wind inlet and an exhaust outlet, this load bearing seat is positioned at the exhaust outlet position of this framework, this load bearing seat is used for rotatably combination of an impeller, and respectively an end of this stator blade connects this load bearing seat, and the other end connects the inboard perisporium of this framework; In addition, respectively this stator blade has an angle each other respectively, and respectively this angle has an angle value respectively, wherein these several stator blades several angles of forming respectively have two or more angle values.
The beneficial effect that can reach by above-mentioned technological means is: to be assembled in this fan frame inboard and when driving air-flow and carrying out thermolysis when an impeller, this air communication is crossed in the process of this stator blade respectively, can be difficult for producing the noise of identical vibration frequency, with the effect of the intensity that reaches effective reduction single-frequency noise that respectively this stator blade was produced.
Description of drawings
Fig. 1: the floor map of existing impeller.
Fig. 2: the stereo appearance figure of the fan frame of existing axial-flow type radiator fan.
Fig. 3: the stereo appearance figure of the fan frame of axial-flow type radiator fan of the present invention.
Fig. 4: the fan frame of the axial-flow type radiator fan of first embodiment of the invention forms the schematic top plan view of increment angle value distribution at several stator blades.
Fig. 5: the fan frame of the axial-flow type radiator fan of first embodiment of the invention forms the schematic top plan view of decrement angle value distribution at several stator blades.
Fig. 6: the fan frame of the axial-flow type radiator fan of second embodiment of the invention forms the schematic top plan view of different amount value with several stator blade angle groups.
Fig. 7: the fan frame of the axial-flow type radiator fan of third embodiment of the invention forms the schematic top plan view of different amount value with irregular mode.
The primary component symbol description:
＜the present invention 〉
The 4th stator blade angle group of the 3rd stator blade angle group 34 of 32 second stator blade angle groups 33 of 10 frameworks, 11 wind inlets, 12 exhaust outlets, 20 load bearing seats, 30 stator blades, 31 first stator blade angle groups
＜prior art 〉
80 delivery wheels
90 fan frames, 91 housings, 92 placing parts, 93 flabellums, 94 flow guide devices, 941 stator blades.
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and cooperate appended graphicly, be described in detail below:
Please refer to shown in Figure 3ly, the fan frame of axial-flow type radiator fan of the present invention comprises a framework 10, a load bearing seat 20 and several stator blades 30.These framework 10 two ends form a wind inlet 11 and an exhaust outlet 12 respectively; This load bearing seat 20 is positioned at exhaust outlet 12 positions of this framework 10; Respectively these stator blade 30 1 ends connect this load bearing seat 20, and the other end is connected to the inboard perisporium of this framework 10, make this stator blade 30 respectively can be laid in the periphery of this placing part 20 radially whereby.Again, the major technique that the present invention fans frame is characterised in that: respectively this stator blade 30 has an angle (θ) each other respectively, respectively this angle (θ) has an angle value respectively, wherein these several stator blades 30 several angles (θ) of forming respectively have two or more angle values, order respectively this stator blade 30 can be non-same spacing and arranges and be provided with.
The load bearing seat 20 that the present invention fans frame can supply in conjunction with a stator (not illustrating), and cooperation is rotatable in conjunction with this stator with an impeller (not illustrating), so that this stator can drive this impeller spinning movement, and then constitutes an axial-flow type radiator fan.Whereby, this impeller is in this wind inlet 11 is introduced air-flow and derived with the process of carrying out thermolysis via this exhaust outlet 12, can utilize aforementioned respectively this stator blade 30 to be the design that non-same spacing is arranged, when making this air communication cross respectively this stator blade 30, be not easy to produce the noise (Tone) of identical vibration frequency.
Structural design notion and operating principle by the fan frame of the invention described above axial-flow type radiator fan, and according to these several stator blades 30 several angles (θ) of forming respectively have the design concept of two or more angle values, the fan frame of axial-flow type radiator fan of the present invention roughly can be divided into following several different mode of executions (several preferred embodiments that disclose, be not in order to limit the present invention), wherein:
Please refer to shown in Figure 4ly, for first embodiment of the fan frame of axial-flow type radiator fan of the present invention, in embodiment as shown in the figure, that sets these several stator blades 30 adds up to n, and has angle (θ respectively between any two adjacent stator blades 30
1), angle (θ
2), angle (θ
3), angle (θ
4) ..., angle (θ
n).In addition, by angle (θ
1) be angle (θ in regular turn along the counter clockwise direction of this framework 10
2), angle (θ
3), angle (θ
4) ..., angle (θ
n), angle (θ wherein
1)＜angle (θ
2)＜angle (θ
3)＜angle (θ
4)＜...＜angle (θ
n); Perhaps, as shown in Figure 4, also may be selected to be angle (θ
1)＞angle (θ
2)＞angle (θ
3)＞angle (θ
4)＞...＞angle (θ
n).Whereby, several stator blades 30 of the present invention several angles (θ of forming respectively
1), (θ
2), (θ
3), (θ
4) ..., (θ
n) angle value neither identical, and make respectively this stator blade 30 arrange and be provided with the state except that being non-same spacing each other, more can set respectively this angle (θ in regular turn
1), (θ
2), (θ
3), (θ
4) ..., (θ
n) angle value form as shown in Figure 3 the design of increment gradually, or the design of decrement gradually as shown in Figure 4 so that when effectively reducing this air communication and crossing respectively this stator blade 30, the intensity of issuable single-frequency noise.
Please refer to shown in Figure 6, second embodiment for the fan frame of axial-flow type radiator fan of the present invention, wherein these several stator blades 30 several angles of forming respectively can further divide into several stator blade angle groups, several angles that each stator blade angle group comprises can be set at angle (θ respectively
1), angle (θ
2) ..., angle (θ
n), the angle (θ that these several stator blade angle groups comprise
1), angle (θ
2) ..., angle (θ
n) the angle value distribution can be identical, and the angle (θ of each stator blade group
1) be angle (θ in regular turn along the counter clockwise direction of this framework 10
2) ..., angle (θ
n), angle (θ wherein
1)＜angle (θ
2)＜...＜angle (θ
n).More in detail, among the embodiment as shown in the figure, each stator blade angle group is divided into one first stator blade angle group 31, one second stator blade angle group 32, one the 3rd stator blade angle group 33 and one the 4th stator blade angle group 34, and each stator blade angle group 31,32,33,34 has angle (θ respectively
1), angle (θ
2), angle (θ
3), angle (θ wherein
1)＜angle (θ
2)＜angle (θ
3).Whereby, respectively this stator blade 30 can utilize as described above the mode of several stator blade angle groups 31,32,33,34 to present non-same spacing each other and arrange the state that is provided with, and can effectively reduce this air communication equally and cross respectively this stator blade 30 time, the intensity of issuable single-frequency noise.
Please refer to shown in Figure 7ly, for the 3rd embodiment of the fan frame of axial-flow type radiator fan of the present invention, in embodiment as shown in the figure, that sets these several stator blades 30 adds up to n, and has angle (θ respectively between any two adjacent stator blades 30
1), angle (θ
2), angle (θ
3), angle (θ
4)..., angle (θ
n), this several angle (θ
1), angle (θ
2), angle (θ
3), angle (θ
4)..., angle (θ
n) angle value can part different or all different, and this several angle (θ
1), angle (θ
2), angle (θ
3), angle (θ
4) ..., angle (θ
n) arrange with irregular mode.Whereby, respectively this stator blade 30 also can present non-same spacing and arranges state is set, and can effectively reduce this air communication equally and cross this stator blade 30 respectively the time the intensity of issuable single-frequency noise.
As mentioned above, the fan frame of axial-flow type radiator fan of the present invention really can by this stator blade respectively several angles of forming respectively have two or more angle values, making respectively, this stator blade 30 can be non-same spacing ordered state, when carrying out thermolysis in order to drive air-flow at this impeller, can cross in the process of this stator blade 30 respectively in air communication, be difficult for producing the noise (Tone) of identical vibration frequency, so really can further reduce the intensity of the single-frequency noise that this stator blade 30 respectively produced, with the product quality of the fan frame of effective lifting axial-flow type radiator fan of the present invention.Therefore, be installed in the impeller of fan frame of the present invention, the angle that is designed to have different amount between also need not each blade with this impeller, maybe be designed to have different 〝 circumferential distance 〞 between each blade with this impeller, with the complexity of the follow-up balance correction operation of this impeller of effective reduction, so have good economic benefit.
Claims (5)
1. the fan frame of an axial-flow type radiator fan, comprise a framework, a load bearing seat and several stator blades, this framework has a wind inlet and an exhaust outlet, this load bearing seat is positioned at the exhaust outlet position of this framework, this load bearing seat is used for rotatably combination of an impeller, respectively this stator blade one end connects this load bearing seat, and the other end connects the inboard perisporium of this framework, it is characterized in that:
Respectively this stator blade has an angle each other respectively, this angle value with an angle respectively respectively, wherein these several stator blades institute respectively several angles of formation have two or more angle values.
2. according to the fan frame of the described axial-flow type radiator fan of claim 1, it is characterized in that: that sets these several stator blades adds up to n, and has angle theta respectively between any two adjacent stator blades
1, angle theta
2, angle theta
3, angle theta
4..., angle theta
n, by angle theta
1Counter clockwise direction along this framework is angle theta in regular turn
2, angle theta
3, angle theta
4..., angle theta
n, angle theta wherein
1＜angle theta
2＜angle theta
3＜angle theta
4＜...＜angle theta
n
3. according to the fan frame of the described axial-flow type radiator fan of claim 1, it is characterized in that: that sets these several stator blades adds up to n, and has angle theta respectively between any two adjacent stator blades
1, angle theta
2, angle theta
3, angle theta
4..., angle theta
n, by angle theta
1Counter clockwise direction along this framework is angle theta in regular turn
2, angle theta
3, angle theta
4..., angle theta
n, angle theta wherein
1＞angle theta
2＞angle theta
3＞angle theta
4＞...＞angle theta
n
4. according to the fan frame of the described axial-flow type radiator fan of claim 1, it is characterized in that: these several stator blades several angles of forming respectively divide into several stator blade angle groups, several angles that each stator blade angle group comprises are set at angle theta respectively
1, angle theta
2..., angle theta
n, and the angle theta of each stator blade group
1Counter clockwise direction along this framework is angle theta in regular turn
2..., angle theta
n, angle theta wherein
1＜angle theta
2＜...＜angle theta
n
5. according to the fan frame of the described axial-flow type radiator fan of claim 1, it is characterized in that: that sets these several stator blades adds up to n, and has angle theta respectively between any two adjacent stator blades
1, angle theta
2, angle theta
3, angle theta
4..., angle theta
n, these several angle theta
1, angle theta
2, angle theta
3, angle theta
4..., angle theta
nAngle value be that part is different or all different, and these several angle theta
1, angle theta
2, angle theta
3, angle theta
4..., angle theta
nAngle value arrange with irregular mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101083721A CN103225628A (en) | 2009-02-23 | 2009-02-23 | Fan frame of axial-flow type cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101083721A CN103225628A (en) | 2009-02-23 | 2009-02-23 | Fan frame of axial-flow type cooling fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910009396.5A Division CN101813100B (en) | 2009-02-23 | 2009-02-23 | Fan frame for axial flow type radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103225628A true CN103225628A (en) | 2013-07-31 |
Family
ID=48836204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101083721A Pending CN103225628A (en) | 2009-02-23 | 2009-02-23 | Fan frame of axial-flow type cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103225628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10076056B2 (en) | 2016-11-04 | 2018-09-11 | Champ Tech Optical (Foshan) Corporation | Cooling fan and electronic device having the same |
Citations (8)
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|---|---|---|---|---|
| JPS4924005B1 (en) * | 1967-09-28 | 1974-06-20 | ||
| JPH10176694A (en) * | 1996-12-18 | 1998-06-30 | Nec Corp | Fan |
| CN2697716Y (en) * | 2004-04-27 | 2005-05-04 | 力致科技股份有限公司 | Blade distributing structure for centrifugal type radiation fan of office facilities |
| US20050175483A1 (en) * | 2004-01-13 | 2005-08-11 | Jan Kruger | Conveying member, especially rotor or stator, for conveying a flowable, preferably gaseous medium |
| CN1746514A (en) * | 2004-09-06 | 2006-03-15 | 台达电子工业股份有限公司 | Radiating fan and its frame structure |
| CN1975179A (en) * | 2005-11-30 | 2007-06-06 | 山洋电气株式会社 | Axial-flow fan |
| JP2008303778A (en) * | 2007-06-07 | 2008-12-18 | Nippon Densan Corp | Fan device |
| CN101813100B (en) * | 2009-02-23 | 2014-11-12 | 建准电机工业股份有限公司 | Fan frame for axial flow type radiating fan |
-
2009
- 2009-02-23 CN CN2013101083721A patent/CN103225628A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924005B1 (en) * | 1967-09-28 | 1974-06-20 | ||
| JPH10176694A (en) * | 1996-12-18 | 1998-06-30 | Nec Corp | Fan |
| US20050175483A1 (en) * | 2004-01-13 | 2005-08-11 | Jan Kruger | Conveying member, especially rotor or stator, for conveying a flowable, preferably gaseous medium |
| CN2697716Y (en) * | 2004-04-27 | 2005-05-04 | 力致科技股份有限公司 | Blade distributing structure for centrifugal type radiation fan of office facilities |
| CN1746514A (en) * | 2004-09-06 | 2006-03-15 | 台达电子工业股份有限公司 | Radiating fan and its frame structure |
| CN1975179A (en) * | 2005-11-30 | 2007-06-06 | 山洋电气株式会社 | Axial-flow fan |
| JP2008303778A (en) * | 2007-06-07 | 2008-12-18 | Nippon Densan Corp | Fan device |
| CN101813100B (en) * | 2009-02-23 | 2014-11-12 | 建准电机工业股份有限公司 | Fan frame for axial flow type radiating fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10076056B2 (en) | 2016-11-04 | 2018-09-11 | Champ Tech Optical (Foshan) Corporation | Cooling fan and electronic device having the same |
| TWI642852B (en) * | 2016-11-04 | 2018-12-01 | 鴻準精密工業股份有限公司 | Fan and electronic having the same |
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Application publication date: 20130731 |