CN1870841A - Rediation device and its fan frame structure - Google Patents
Rediation device and its fan frame structure Download PDFInfo
- Publication number
- CN1870841A CN1870841A CN 200510075846 CN200510075846A CN1870841A CN 1870841 A CN1870841 A CN 1870841A CN 200510075846 CN200510075846 CN 200510075846 CN 200510075846 A CN200510075846 A CN 200510075846A CN 1870841 A CN1870841 A CN 1870841A
- Authority
- CN
- China
- Prior art keywords
- frame structure
- air
- fan frame
- enlarged portion
- bent type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A heat radiating unit and its fan frame is a fan including a fan frame and an impeller. The frame is used to support and fix the impeller in it including an entry, an outlet and a columnar runner guiding the flow from the entry to the outlet, in which, a smooth curve expansion part is set at the inner peripheral wall of the end of the column out draft extending outward. There is a depressed area at the song-style expansion part to form a air flow layer to stop the flow of direct contact with the fan frame wall. The invention can reduce airflow noise generated by the friction of frame wall and achieve steady flow, thereby enhancing the overall characteristics of fans.
Description
Technical field
The invention relates to a kind of radiator fan and fan frame structure thereof, but particularly about a kind of heat abstractor and fan frame structure thereof of noise-decreasing.
Background technology
Continuous lifting along with electronic installation usefulness, heat abstractor or cooling system have become one of outfit indispensable in the existing electronic installation, because it is the heat energy that electronic installation produced is if not in addition suitably dissipation gently then causes the usefulness variation, heavy then can cause burning of electronic installation.
The most widely used heat abstractor is to be fan now.Please be simultaneously with reference to Figure 1A and Figure 1B, Figure 1A illustrates the schematic diagram of existing fan, and Figure 1B illustrate among Figure 1A along profile that A-A ' did.General employed traditional heat-dissipating fan 1 mainly is made up of a fan frame 11 and an impeller 12, when fan running, can utilize a motor 13 to come drives impeller 12 to rotate, to produce air-flow, blow to the electronic building brick (not shown) that produces heat, to reach the purpose of heat radiation.Fan frame 11 has a through hole, and this through hole forms an air intake vent 112 and an air outlet 114 in fan frame 11 two ends, and air intake vent 112 and air outlet 114 are that the column runner 116 by central authorities is connected, and the air-flow that makes impeller 12 be produced is freed in and out.In addition, have a plurality of screw holes 14 in four corners of fan frame 11, so that fan 1 is fixed on the framework of electronic installation (as computer).
In order to promote the heat dispersion of traditional heat-dissipating fan, please refer to Fig. 1 C, Fig. 1 D and Fig. 1 E.Fig. 1 C, Fig. 1 D and Fig. 1 E illustrate the schematic diagram of three kinds of fan frames improvement of existing fan.The existing common practice be for: close air intake vent 112 or air outlet 114 places in fan frame 11 set up an oblique angle C (shown in Fig. 1 C) or a lead angle D (shown in Fig. 1 D), and air-flow flows into or the area of outflow to increase.Perhaps, shown in Fig. 1 E, partly pruned and formed a recess E in close air outlet 114 places of fan frame 11, to increase the area that air-flow flows out.But, along with fan frame 11 is partly pruned and is formed recess E, though can increase the area that air-flow flows out, the shortcoming that relatively can cause air-flow to disperse easily.
Yet, no matter be the fan frame among Figure 1B, Fig. 1 C, Fig. 1 D or Fig. 1 E, when air flow stream during to air outlet 114 air-out, air-flow all directly and the inwall periphery direct friction (shown in Figure 1B) of column runner, or with the wall edge direct friction of oblique angle C, lead angle D or recess E, make and cause flow velocity slack-off by airflow obstruction that blast reduces.What is more, the influence of Chang Yinqi windage and produce noise, and when rotation speed of the fan edged up, the level of noise that it produced also promoted relatively.
Summary of the invention
Therefore, for addressing the above problem, the present invention proposes a kind of heat abstractor and fan frame structure thereof, has level and smooth bent type enlarged portion, can reduce the distinguished and admirable noise that is produced because of friction frame wall, and reach the effect of current stabilization and focused airflow, and then the characteristic of lifting fan integral body.In addition, be assembled under the situation of other radiating subassembly not influencing existing fan, the inner peripheral wall of fan frame structure is all stretched to extending out, and its inlet air and air-out area are increased, and focused airflow simultaneously, with the heat dispersion of lifting fan.When the system of being assembled in or other radiating subassembly, the assembling mode of system and radiating subassembly also must not change.
According to purpose of the present invention, a kind of fan frame structure of heat abstractor is proposed, comprise: a housing, it comprises a column runner, flow to another opening in order to steering current by an opening, wherein the inner peripheral wall in the column runner of at least one openend is the level and smooth bent type enlarged portion that extends radially outwardly.Bent type enlarged portion has a depressed area, makes air-flow form an airflow layer in the depressed area, directly contacts with the frame wall of housing in order to stop follow-up air-flow.Bent type enlarged portion is that the axis with the column runner is the center, is up and down or left-right symmetric, and perhaps, bent type enlarged portion is that the axis with the column runner is the center, and expansion and protruding in outside the housing extends radially outwardly.Moreover the bent type enlarged portion of one of them openend has more lead angle or oblique angle or leads the oblique angle or big R angle.
According to another object of the present invention, a kind of fan frame structure of heat abstractor is more proposed, comprise a housing, it comprise an air intake vent, an air outlet and in order to steering current by the column runner of air intake vent to air outlet, wherein the inner peripheral wall in the column runner of air opening end is the level and smooth bent type enlarged portion that extends radially outwardly.Bent type enlarged portion has more a depressed area, makes air-flow form an airflow layer in the depressed area, directly contacts with the frame wall of housing in order to stop follow-up air-flow.Bent type enlarged portion is that the axis with the column runner is the center, is up and down or left-right symmetric, and perhaps, be that axis with the column runner is the center in the bent type enlarged portion of air opening end, expansion and protruding in outside the housing extends radially outwardly.Moreover, have more lead angle, oblique angle, lead oblique angle or big R angle in the bent type enlarged portion of air opening end.
In addition, above-mentioned fan frame structure is in the inner peripheral wall of the column runner of air intake vent end, axis with the column runner is the center, be up and down or the left-right symmetric expansion that extends radially outwardly, perhaps, in the inner peripheral wall of the runner of air intake vent end, more the axis with the column runner is the center, and expansion and protrude in that rounded or oval radially outward the expansion stretches outside the housing extends radially outwardly.Axis with the column runner is the center, has more lead angle or oblique angle or leads the oblique angle or big R angle in the inner peripheral wall of the column runner of air intake vent end.
According to a further object of the present invention, reintroduce a kind of heat abstractor, comprise an impeller, and a fan frame structure.Fan frame structure in order to the bearing impeller in wherein.Fan frame structure comprises a column runner, flows to another opening in order to steering current by an opening, and wherein the inner peripheral wall in the column runner of one of them openend is the level and smooth bent type enlarged portion that extends radially outwardly.Bent type enlarged portion has more a depressed area, makes air-flow form an airflow layer in the depressed area, directly contacts with the frame wall of fan frame structure in order to stop follow-up air-flow.Bent type enlarged portion is that the axis with the column runner is the center, is up and down or left-right symmetric, and perhaps, bent type enlarged portion is that the axis with the column runner is the center, and expansion and protruding in outside the fan frame structure extends radially outwardly.Moreover the bent type enlarged portion of one of them openend has more lead angle or oblique angle or leads the oblique angle or big R angle.
Above-mentioned heat abstractor is a tube-axial fan, and the blade of its impeller extends size along with extending radially outwardly of bent type enlarged portion.Heat abstractor more comprises a motor base, be arranged in the fan frame structure, and impeller is to be arranged on the motor base, and the side of motor base is radially tool one gradient, can increase the area that air-flow flows out or flows into.The gradient is a plane or curved surface.Fan frame structure is to be general square shape or circle or ellipse or rhombus.
According to another purpose more of the present invention, a kind of heat abstractor is proposed, comprise an impeller, and a fan frame structure.Fan frame structure in order to the bearing impeller in wherein.Fan frame structure comprise an air intake vent, an air outlet and in order to steering current by the column runner of air intake vent to air outlet, wherein the inner peripheral wall in the column runner of air opening end is the level and smooth bent type enlarged portion that extends radially outwardly.Bent type enlarged portion has more a depressed area, makes air-flow form an airflow layer in the depressed area, directly contacts with the frame wall of fan frame structure in order to stop follow-up air-flow.Bent type enlarged portion is that the axis with the column runner is the center, is up and down or left-right symmetric, and perhaps, be that axis with the column runner is the center in the bent type enlarged portion of air opening end, expansion and protruding in outside the fan frame structure extends radially outwardly.Moreover, have more lead angle or oblique angle or lead the oblique angle or big R angle in the bent type enlarged portion of air opening end.In addition, above-mentioned fan frame structure is in the inner peripheral wall of the column runner of air intake vent end, more the axis with the column runner is the center, be up and down or the left-right symmetric expansion that extends radially outwardly, perhaps, in the inner peripheral wall of the runner of air intake vent end, more the axis with the column runner is the center, and expansion and protrude in that rounded or oval radially outward the expansion stretches outside the fan frame structure extends radially outwardly.Axis with the column runner is the center, has more lead angle or oblique angle or leads the oblique angle or big R angle in the inner peripheral wall of the column runner of air intake vent end.
Above-mentioned heat abstractor is a tube-axial fan, and the blade of its impeller extends size along with extending radially outwardly of bent type enlarged portion.Heat abstractor more comprises a motor base, be arranged in the fan frame structure, and impeller is to be arranged on the motor base, and the side of motor base is radially tool one gradient, can increase the area that air-flow flows out or flows into.The gradient is a plane or curved surface.Fan frame structure is to be general square shape, circle, ellipse or rhombus.
According to a more purpose of the present invention, a kind of cooling system is proposed, comprise a system framework, at least one electronic building brick, be arranged in the system framework, and a heat abstractor.Heat abstractor is to be arranged on the system framework, the heat dissipation of being given birth in order to the running of at least one electronic building brick the time.Wherein heat abstractor comprise an impeller and in order to the bearing impeller in fan frame structure wherein, wherein fan frame structure comprises a column runner, flow to another opening in order to steering current by an opening, and be the level and smooth bent type enlarged portion that extends radially outwardly in the inner peripheral wall of the column runner of one of them openend.
According to a purpose more of the present invention, a kind of cooling system is more proposed, comprise a system framework, at least one electronic building brick, be arranged in the system framework, and a heat abstractor.Heat abstractor is to be arranged on the system framework, the heat dissipation of being given birth in order to the running of at least one electronic building brick the time.Wherein heat abstractor comprise an impeller and in order to the bearing impeller in fan frame structure wherein, wherein fan frame structure comprise an air intake vent, an air outlet and in order to steering current by the column runner of air intake vent to air outlet, wherein the inner peripheral wall in the column runner of air opening end is the level and smooth bent type enlarged portion that extends radially outwardly.
Effect of the present invention:
In sum, heat abstractor of the present invention and fan frame structure thereof have bent type enlarged portion, can reduce the distinguished and admirable noise that is produced because of friction frame wall, and reach the effect of current stabilization, and then promote the characteristic of fan integral body.In addition, be assembled under the situation of other radiating subassembly not influencing existing fan, the inner peripheral wall of fan frame structure is all stretched to extending out, and its inlet air and air-out area is increased, with the heat dispersion of lifting fan.When the system of being assembled in or other radiating subassembly, the assembling mode of system and radiating subassembly also must not change.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Figure 1A illustrates the schematic diagram of existing fan.
Figure 1B illustrates among Figure 1A along the profile that A-A ' did.
Fig. 1 C, Fig. 1 D and Fig. 1 E illustrate the schematic diagram of three kinds of fan frames improvement of existing fan.
Fig. 2 A illustrates the schematic diagram according to the fan of embodiments of the invention.
Fig. 2 B illustrates among Fig. 2 A along the profile that B-B ' did.
Fig. 3 A illustrates the schematic diagram of the bent type enlarged portion F of Fig. 2 A, and shows its flow field direction.
Fig. 3 B illustrates the schematic diagram according to the another kind of fan frame structure of embodiments of the invention.
Fig. 4 illustrates the schematic diagram in the system framework that heat abstractor of the present invention is provided with electronic building brick in being disposed at.
Fig. 5 A and Fig. 5 B are the audio result contrast of existing fan and fan of the present invention.
Fig. 6 A and Fig. 6 B are volume result's contrast of existing fan and fan of the present invention.
Fig. 7 is the characteristic curve comparison diagram of existing fan and fan of the present invention.
Primary clustering symbol description in the accompanying drawing:
1,2: fan 11,21: the fan frame
112,212: air intake vent 114,214: air outlet
116,216: column runner 12,22: impeller
13,23: motor 14,24: screw hole
218: depressed area 219a: lead angle
219b: oblique angle 26: motor base
262: side 3: system framework
4: circuit board 5: cooling system
C: oblique angle D: lead angle
E: recess F: bent type enlarged portion
Embodiment
Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, Fig. 2 A illustrates the schematic diagram according to the fan of embodiments of the invention, and Fig. 2 B illustrates among Fig. 2 A along the profile that B-B ' did.Heat abstractor 2 of the present invention for example is a tube-axial fan, comprises a fan frame structure 21, an impeller 22 and a motor base 26.Fan frame structure 21 is the housings of shapes such as squarely, circle, ellipse or rhombus roughly, and fan frame structure 21 comprises a column runner 216.Fan frame structure 21 has a through hole, and this through hole forms an above-mentioned column runner 216 in fan frame structure 21, and forms an air intake vent 212 and an air outlet 214 in fan frame structure 21 two ends.Air intake vent 212 and air outlet 214 are to be connected by column runner 216, and column runner 216 flows to the air flow channel of the column of another opening (being air outlet 214) in order to steering current by an opening (being air intake vent 212), and the air-flow that makes impeller 22 be produced is freed in and out.In addition, have a plurality of screw holes 24 in four corners of fan frame structure 21, so that fan 2 is fixed on the framework of electronic installation (as computer).
Then, please be simultaneously with reference to Fig. 2 B and Fig. 3 A, Fig. 3 A illustrates the schematic diagram of the bent type enlarged portion F of Fig. 2 A, and shows its flow field direction.Inner peripheral wall in the column runner 216 of air outlet 214 ends is the level and smooth bent type enlarged portion F that extends radially outwardly.Bent type enlarged portion F has more a depressed area 218, when making airflow passes depressed area 218, can 218 elder generations form an airflow layer in the depressed area, directly contacts with the frame wall of fan frame structure 21 in order to stop follow-up air-flow.Thus, the air-flow that is positioned at depressed area 218 can produce the function as air cushion, make follow-up air-flow can directly not contact, the friction between the solid is changed original gas into gas to the friction between the gas, can make that noise significantly reduces with the frame wall of fan frame structure 21.In addition, because the setting of bent type enlarged portion F, depressed area 218 more provides air-flow one enough spaces, can reach the effect of current stabilization.Moreover, when air-flow brings out wind by air outlet 214, compared to existing fan frame 11 (shown in Fig. 1 E), utilize and form a recess E to increase the area that air-flow flows out, the present invention adopts: the inner peripheral wall in the column runner 216 of air outlet 214 ends is the level and smooth bent type enlarged portion F that extends radially outwardly, and has more air-flow to be concentrated the effect of air-out.
Bent type enlarged portion F is that the axis with column runner 216 is the center, is left-right symmetric, or is symmetry up and down (that is in the inner peripheral wall of the column runner 216 of air intake vent 212 ends, also being another bent type enlarged portion that extended radially outwardly simultaneously).Moreover, form bent type enlarged portion F along with the inner peripheral wall of fan frame structure 21 to extending out to stretch, can strengthen the size of the blade of impeller 22 separately, and also can cooperate fan frame structure 21, preferably, do lead angle 219a design (as shown in Figure 3A) in the bent type enlarged portion F of air outlet 214 ends, or the oblique angle, lead designs such as oblique angle, big R angle, be beneficial to more smooth air-out.
In addition, also can do as oblique angle 219b (shown in Fig. 2 B), lead angle, lead oblique angle, the design at R angle etc. greatly in the inner peripheral wall of the air intake vent end 212 of fan frame structure 21, making also can increase in the area of air intake vent 212 ends.Perhaps, above-mentioned fan frame structure 21 is in the inner peripheral wall of the column runner 216 of air intake vent end 212, more the axis with column runner 216 is the center, is up and down or the left-right symmetric expansion that extends radially outwardly, and rounded or oval radially outward the expansion stretches and protrude in outside the fan frame structure 21.
Except that above-mentioned narration, also can be according to user's demand, be the center with the axis of column runner 216, with bent type enlarged portion F again conduct make air-flow flow into or the area that flows out is expanded more to stretching out expansion and protruding in outside the fan frame structure 21.
See also Fig. 3 B, it is schematic diagram according to the another kind of fan frame structure of embodiments of the invention that Fig. 3 B illustrates.Except the lead angle design of above-mentioned bent type enlarged portion F and air intake vent 212 or air opening end 214, the side of going up motor base 26 262 of can arranging in pairs or groups again is designed to be radially tool one gradient, and this gradient is a plane or curved surface, increases the area that air-flow flows out or flows into this.
In practical application, the heat abstractor of this case 2 is configurable in the interior system framework 3 that is provided with electronic building brick, and to form a cooling system 5, as shown in Figure 4, it illustrates the schematic diagram in the system framework that heat abstractor of the present invention is provided with electronic building brick in being disposed at.In system framework 3, the thermal source or the electronic building brick that can produce heat during many running are installed on the circuit board 4 more, and heat abstractor 2 of the present invention is arranged at an appropriate location, the cold airflow that makes heat abstractor 2 be produced when rotating is blowed to thermal source or electronic building brick, with this effect that reaches efficiently radiates heat, avoid electronic building brick Yin Gaowen and suffer damage.
In addition, please be simultaneously with reference to Fig. 5 A and Fig. 5 B, Fig. 5 A is the audio result that existing fan is made sound test back gained, Fig. 5 B then makes the audio result of sound test back gained for fan of the present invention.Both all adopt the fan of about eight centimeters sizes, and change resulting test result down in rotating speed 5700.Fig. 5 A and Fig. 5 B are contrasted mutually, can find obviously that existing fan has a tangible noise and swashs frequently at about 665Hz place, use fan of the present invention and then obviously improve herein.
Then, and simultaneously with reference to Fig. 6 A and Fig. 6 B, Fig. 6 A is the volume result that existing fan is made sound test back gained, and Fig. 6 B then makes the volume result of sound test back gained for fan of the present invention.Both all adopt the fan of about eight centimeters sizes, and change resulting test result down in rotating speed 5700.By among Fig. 6 A as can be known, existing fan is 49.6dB in the level of noise that 5700 rotating speeds that change are produced down, and compared to Fig. 6 B, fan of the present invention then is reduced to 46.7dB in the level of noise that same rotating speed is produced down.Thus, can prove that using fan of the present invention has the sharp effect that frequently produces and improve level of noise of minimizing noise really completely.
Please refer to Fig. 7, Fig. 7 is the characteristic curve comparison diagram of existing fan and fan of the present invention, and both all adopt the fan of about eight centimeters sizes, and changes (rpm) resulting test result down in rotating speed 5700.By can obviously finding among the figure, use fan of the present invention, its blast all will be greater than existing fan with air quantity, and as with the about 40CFM of identical air quantity, existing fan can reach the only about 7.9mmH of blast
2O, however fan of the present invention can reach the about 12.9mmH of blast
2O has increased about 63%.Perhaps, with the about 10mmH of identical blast
2O, existing fan can reach the only about 28.8CFM of air quantity, yet fan of the present invention can reach the about 45CFM of air quantity, have increased approximately 56%, can effectively improve blast and air quantity so use fan of the present invention, and reach the effect of rectification.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (20)
1. the fan frame structure of a heat abstractor is characterized in that comprising:
One housing comprises a column runner, flows to another opening in order to steering current by an opening, and wherein the inner peripheral wall in this column runner of at least one openend of described housing is the level and smooth bent type enlarged portion that extends radially outwardly.
2. fan frame structure as claimed in claim 1 is characterized in that:
Described bent type enlarged portion has a depressed area, makes air-flow form an airflow layer in described depressed area, directly contacts with the frame wall of described housing in order to stop follow-up air-flow.
3. fan frame structure as claimed in claim 1 is characterized in that:
Described opening forms on described housing, comprise an air intake vent and an air outlet, described column runner be in order to steering current by the air flow channel of described air intake vent to the column of described air outlet, and described bent type enlarged portion is to extend inner peripheral wall from the described column runner of described air opening end to be a level and smooth bent type enlarged portion that extends radially outwardly.
4. fan frame structure as claimed in claim 3 is characterized in that:
Described bent type enlarged portion is that the axis with described column runner is the center, is up and down or left-right symmetric.
5. fan frame structure as claimed in claim 3 is characterized in that:
The described bent type enlarged portion of described air opening end is that the axis with described column runner is the center, and expansion and protruding in outside the described housing extends radially outwardly.
6. fan frame structure as claimed in claim 3 is characterized in that:
The described bent type enlarged portion of described air opening end has lead angle or oblique angle or leads the oblique angle or big R angle.
7. as claim 3 a described fan frame structure, it is characterized in that:
The inner peripheral wall of the described column runner of described air intake vent end is the center with the axis of described column runner, is up and down or the left-right symmetric expansion that extends radially outwardly.
8. fan frame structure as claimed in claim 3 is characterized in that:
The inner peripheral wall of the described column runner of described air intake vent end is the center with the axis of described column runner, and expansion and protruding in outside the described housing extends radially outwardly.
9. fan frame structure as claimed in claim 3 is characterized in that:
The inner peripheral wall of the described column runner of described air intake vent end is the center with the axis of described column runner, and rounded or oval radially outward the expansion stretches.
10. fan frame structure as claimed in claim 3 is characterized in that:
Axis with described column runner is the center, has lead angle or oblique angle or leads the oblique angle or big R angle in the inner peripheral wall of the described column runner of described air intake vent end.
11. a heat abstractor is characterized in that comprising:
One impeller; And
One fan frame structure, in order to the described impeller of bearing in wherein, described fan frame structure comprises a column runner, flows to another opening in order to steering current by an opening, and wherein the inner peripheral wall in the described column runner of at least one described openend is the level and smooth bent type enlarged portion that extends radially outwardly.
12. heat abstractor as claimed in claim 11 is characterized in that:
Described bent type enlarged portion has a depressed area, makes air-flow form an airflow layer in this depressed area, directly contacts with the frame wall of described fan frame structure in order to stop follow-up air-flow.
13. heat abstractor as claimed in claim 11 is characterized in that:
Described opening forms on described housing, comprise an air intake vent and an air outlet, described column runner be in order to steering current by described air intake vent to the cylindrical air runner of described air outlet, and described bent type enlarged portion is to extend inner peripheral wall from the described column runner of described air opening end to be a level and smooth bent type enlarged portion that extends radially outwardly.
14. heat abstractor as claimed in claim 11 is characterized in that:
The blade of described impeller extends size along with extending radially outwardly of described bent type enlarged portion.
15. the heat abstractor as claim 11 is characterized in that:
Described heat abstractor is a tube-axial fan.
16. the heat abstractor as claim 11 is characterized in that:
Described heat abstractor also comprises a motor base, be arranged in the described fan frame structure, and described impeller is to be arranged on the described motor base, and the side of described motor base is radially tool one gradient, can increase the area that air-flow flows out or flows into.
17. the heat abstractor as claim 16 is characterized in that:
The described gradient is a plane or a curved surface.
18. a cooling system is characterized in that comprising:
One system framework;
At least one electronic building brick is arranged in the described system framework; And
One heat abstractor is arranged on the described system framework, the heat dissipation of being given birth in order to described at least one electronic building brick running the time;
Wherein said heat abstractor comprise an impeller and in order to the described impeller of bearing in fan frame structure wherein, wherein said fan frame structure comprises a column runner, flow to another opening in order to steering current by an opening, and be the level and smooth bent type enlarged portion that extends radially outwardly in the inner peripheral wall of the described column runner of a wherein said at least openend.
19. cooling system as claimed in claim 18 is characterized in that:
Described bent type enlarged portion has a depressed area, makes air-flow form an airflow layer in described depressed area, directly contacts with the frame wall of described fan frame structure in order to stop follow-up air-flow.
20. cooling system as claimed in claim 18 is characterized in that:
Described opening forms on described housing, comprise an air intake vent and an air outlet, described column runner be in order to steering current by the air flow channel of described air intake vent to the column of described air outlet, and described bent type enlarged portion is to extend inner peripheral wall from the described column runner of described air opening end to be a level and smooth bent type enlarged portion that extends radially outwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100758462A CN100525555C (en) | 2005-05-27 | 2005-05-27 | Rediation device and its fan frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100758462A CN100525555C (en) | 2005-05-27 | 2005-05-27 | Rediation device and its fan frame structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1870841A true CN1870841A (en) | 2006-11-29 |
| CN100525555C CN100525555C (en) | 2009-08-05 |
Family
ID=37444368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100758462A Active CN100525555C (en) | 2005-05-27 | 2005-05-27 | Rediation device and its fan frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100525555C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358693A (en) * | 2014-11-28 | 2015-02-18 | 德清振达电气有限公司 | Axial fan |
-
2005
- 2005-05-27 CN CNB2005100758462A patent/CN100525555C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358693A (en) * | 2014-11-28 | 2015-02-18 | 德清振达电气有限公司 | Axial fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100525555C (en) | 2009-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1275006C (en) | Fan guard of fan unit | |
| CN1578879A (en) | Internal blower with air end shell and cooling unit and electronic device containing the same blower | |
| CN1573124A (en) | Fan motor | |
| CN1441170A (en) | Fan and cover member | |
| CN1723348A (en) | Engine-cooling fan assembly with overlapping fans | |
| CN101076670A (en) | Side channel compressor with housing shells and running wheel | |
| CN1782440A (en) | Cross flow fan and indoor unit of air conditioner with cross flow fan | |
| CN1643261A (en) | Bidirectional indraft type centrifugal fan and cooling apparatus for computer | |
| CN100343590C (en) | Outdoor unit for air conditioner | |
| US7118345B2 (en) | Fan blade | |
| CN1746513A (en) | Radiating fan and base of fan frame | |
| CN2864177Y (en) | Radiation fan | |
| CN1870841A (en) | Rediation device and its fan frame structure | |
| CN2845004Y (en) | Low wind pressure type heat abstractor | |
| CN1704614A (en) | Cooling fan | |
| CN200964872Y (en) | Combined type bi-directional current generation device | |
| CN2731542Y (en) | Internal radiator of computer casing | |
| CN1186535C (en) | Side-blowing typeradiation device | |
| CN2800358Y (en) | Heat radiation module | |
| JP2004171501A (en) | Miniaturized computer and heat-dissipating method | |
| CN2508028Y (en) | Blade of fan | |
| CN2842546Y (en) | Radiator structure | |
| CN2653189Y (en) | Air outlet flow guide structure of heat radiation fan | |
| CN100341145C (en) | Air outlet flow guiding structure of radiating fan | |
| CN2678131Y (en) | Radiator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |