CN101191501A - Countercurrent-proof device and fan components - Google Patents
Countercurrent-proof device and fan components Download PDFInfo
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- CN101191501A CN101191501A CNA2006101628013A CN200610162801A CN101191501A CN 101191501 A CN101191501 A CN 101191501A CN A2006101628013 A CNA2006101628013 A CN A2006101628013A CN 200610162801 A CN200610162801 A CN 200610162801A CN 101191501 A CN101191501 A CN 101191501A
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- fan
- framework
- backflow device
- prevents
- return sheet
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Abstract
The invention discloses an anti-reflux device which is connected with an air outlet of a fan and comprises a frame body, a plurality of fastening structures and a plurality of non-return pieces, wherein, the frame body comprises an opening and a plurality of fixed parts, the opening and the air outlet are arranged correspondingly; the fastening structures are connected with the frame body and fastened on a fan frame of the fan; the non-return pieces are respectively and pivotally arranged on the fixed parts and cover the opening. The invention also discloses a fan with the anti-reflux device.
Description
Technical field
The present invention relates to a kind of backflow device and fan of preventing, what particularly relate to the solid mode combination that hangs tag beyond a kind of prevents backflow device and fan.
Background technique
Along with electronic product towards high-performance, high frequency, high-speed and lightening developing rapidly, cause the heating temperature of electronic product more and more higher, thereby be easy to generate wild effect, influence production reliability, therefore heat radiation has become one of important topic of present electronic product, is to be common structure setting and utilize fan as sink.
Please refer to shown in Figure 1ly, a kind of existing have the fan 1 that prevents backflow device and comprise a fan body 11 and a fan frame 12.Fan body 11 is placed in the fan frame 12; generally speaking; fan body 11 has an impeller and a motor (figure does not show); the rotation of motor impeller also produces an air-flow; airflow direction as shown in the figure; and fan frame 12, and provide some fixing parts so that the magnetic conduction coil of motor and circuit board etc. can be connected in fan frame 12 by fixing part in order to protection fan body 11.In addition, fan frame 12 also has a plurality of installation holes 121 usually, utilizes installation hole 121 that fan 1 is fixed in other system to make things convenient for the user.
In addition, in order to prevent when fan 1 lost efficacy or do not operate, cause the blast in the fan 1 applied system, exhaust outlet 13 via fan 1 leaks, cause system's flow field to become unstable, so prevent backflow device 14 in exhaust outlet 13 places installing one, enter in the system via exhaust outlet 13 to prevent the air-flow adverse current.
Prevent that backflow device 14 has a framework 141 and a plurality of non-return sheet 142, framework 141 connects by installation hole 121 and is fixed in fan frame 12, and non-return sheet 142 is hubbed at framework 141, and covers exhaust outlet 13.When fan 1 is done the time spent, air-flow is just via exhaust outlet 13, and promotes non-return sheet 142 and outwards flow out; Do not do the time spent when fan 1, non-return sheet 142 just covers exhaust outlet 13, and avoids flow reversal conditions to take place.Yet, can avoid adverse current though prevent backflow device 14, keep the stable of system's flow field, but prevent that backflow device 14 from often utilizing the installation hole 121 of fan 1 and be connected with fan frame 12, cause installation hole 121 can't allow the user utilize, therefore the usage mode of having limited to fan 1.
Therefore, how to provide a kind of backflow device and fan of preventing to use for the user, increase the flexibility ratio that fan uses, and then improve the effective utilization of fan, become one of important topic with the installation hole of avoiding adverse current more can keep fan.
Summary of the invention
The object of the present invention is to provide a kind of installation hole that can avoid adverse current and keep fan to use, prevent backflow device and fan with what promote effective utilization for the user.
In order to achieve the above object, according to a kind of backflow device that prevents of the present invention, be connected in the exhaust outlet of a fan, and comprise a framework, a plurality of clamping structure and a plurality of non-return sheet.Framework has an opening and a plurality of fixing part, the corresponding setting with exhaust outlet of opening; Clamping structure is connected with framework, and is fastened in the fan frame of fan; The non-return sheet is hubbed at fixing part respectively, and covers opening.
In order to achieve the above object, comprise that according to a kind of fan of the present invention a fan frame, a fan body and prevent backflow device.The fan frame has an exhaust outlet; Fan body to small part is placed in the fan frame; Prevent that backflow device is fastened in the fan frame, and comprise a framework, a plurality of clamping structure and a plurality of non-return sheet, framework has an opening and a plurality of fixing part, the corresponding setting of opening with exhaust outlet, clamping structure is connected with framework, and the non-return sheet is hubbed at fixing part respectively, and covers opening.
From the above, because of being connected in the fan frame by plug-in fixing mode, use for the user so keep the installation hole of fan according to a kind of backflow device and fan of preventing of the present invention.Compared with prior art, the present invention can avoid adverse current to produce, and collocation is applied to the fan of various different sizes, with the flexibility ratio of increase fan use, and then the effective utilization of raising fan.
Description of drawings
Fig. 1 is a kind of existing schematic representation with the fan that prevents backflow device;
Fig. 2 is a kind of exploded view that prevents backflow device of preferred embodiment of the present invention;
Fig. 3 is the combination that prevents backflow device and the action diagram of preferred embodiment of the present invention;
Fig. 4 utilizes the groove mode to limit the schematic representation of non-return sheet range for the backflow device that prevents of preferred embodiment of the present invention; And
Fig. 5 prevents the schematic representation of the fan of backflow device for a kind of installing of preferred embodiment of the present invention.
The element numbers explanation:
1,2 fans, 11,22 fan bodies
12,21 fan frames, 121,212 installation holes
13,211 air- out 14,23 prevent backflow device
141,231 frameworks, 142,233 non-return sheets
2311 openings, 2312 supporting portions
2313 fixing parts, 2314 interdiction pieces
2315 grooves, 2316 holes
232 clamping structures, 2331 male members
2332 grooves
Embodiment
Hereinafter with reference to correlative type, a kind of backflow device and the fan of preventing according to preferred embodiment of the present invention is described.
Please refer to shown in Figure 2ly, a kind of backflow device 23 that prevents of preferred embodiment of the present invention comprises a framework 231, a plurality of clamping structure 232 and a plurality of non-return sheet 233.The clamping structure 232 of present embodiment is to be extended by a side of framework 231, and in order to being fastened in the fan frame of fan, it is that a trip and can being formed in one with framework 231 is made; Certainly, clamping structure 232 also can independently be provided with, and is connected with framework 231 again.In addition, framework 231 has an opening 2311, has two supporting portions 2312 in opening 2311 relative both sides, and framework 231 has more a plurality of fixing parts 2313, and fixing part 2313 is symmetricly set in supporting portion 2312 respectively.
Please refer to shown in Figure 3ly, non-return sheet 233 is hubbed at fixing part 2313 respectively, and covers opening 2311.When air communication was crossed opening 2311, non-return sheet 233 can be that the center rotates with fixing part 2313 just; When airless when the opening 2311, non-return sheet 233 is just got back to the state that covers opening 2311 because of gravity or pressure difference.
In order to prevent that non-return sheet 233 from surpassing a range, and can't be returned to original position, thus can be in the supporting portion 2312 a plurality of interdiction pieces 2314 be set, to limit the range of non-return sheet 233.In present embodiment, interdiction piece 2314 is a protuberance, and is connected with supporting portion 2312.In addition, interdiction piece 2314 and framework 231 can one-body moldedly be made.When non-return sheet 233 rotates to range, just can be blocked, and can't up rotate again by interdiction piece 2314.Therefore, when airless, non-return sheet 233 can be got back to the state of original covering by gravity.In addition, have groove 2332 on the non-return sheet, in order to the weight that reduces non-return sheet 233 to increase its sensitivity to the air-flow reaction.
Please refer to shown in Figure 4, the mode of the range of another kind of restriction non-return sheet 233 is 2312 a groove 2315 to be set in the supporting portion, 233 respective grooves 2315 positions of a non-return sheet and male member 2331 is set, move in groove 2315 by male member 2331, with the range of the length restriction non-return sheet 233 of groove 2315.
Please refer to shown in Figure 5ly, a kind of fan component 2 of preferred embodiment of the present invention comprises that fan frame 21, a fan body 22 and prevents backflow device 23, prevents that backflow device 23 is fastened in fan frame 21 by clamping structure 232.Fan frame 21 has an exhaust outlet 211, and fan body 22 to small part is placed in the fan frame 21.The person of noting, the present invention are not limited to fan the shape of frame 21 or size etc., also are not limited to the kind or the function of fan body 22, for example can be an axial flow fan or a centrifugal fan.
Prevent the exhaust outlet 211 corresponding settings of opening 2311 with the fan frame 21 of backflow device 23, fan frame 21 has more a plurality of installation holes 212, prevent that backflow device 23 from having more a plurality of holes 2316 and being oppositely arranged with installation hole 212 respectively, for the user by hole 2316 and installation hole 212 and fan component 2 is fixed in the system of application.Solid mode is connected in fan frame 21 owing to prevent to hang tag beyond the backflow device 23, so can keep installation hole 212 for user's application.In addition, also can dwindle the size that prevents backflow device 23, make to prevent that backflow device 23 from not blocking the installation hole 212 of fan component 2; Perhaps, change the position that is provided with of clamping structure 232, can reach the purpose that keeps installation hole 212 equally.
In sum, backflow device and the fan component of preventing of the present invention is connected in the fan frame by plug-in fixing mode, uses for the user so keep installation hole.Compared with prior art, the present invention can avoid adverse current to produce, and collocation is applied to the fan of various different sizes, with the flexibility ratio of increase fan use, and then the effective utilization of raising fan component.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.
Claims (17)
1. one kind prevents backflow device, is applied to a fan, comprising:
One framework has at least one fixing part of an opening;
At least one clamping structure is connected with this framework, and is fastened in the fan frame of this fan; And
At least one non-return sheet is coupled to this fixing part, and covers this opening.
2. the backflow device that prevents as claimed in claim 1, wherein this framework and these clamping structures are formed in one and make; Perhaps this clamping structure is independent the setting.
3. the backflow device that prevents as claimed in claim 1 comprises that more at least one interdiction piece is connected with this framework, to limit the range of this non-return sheet.
4. the backflow device that prevents as claimed in claim 3, wherein this interdiction piece is that a protuberance and be formed in one with this framework is made, or is independent the setting.
5. the backflow device that prevents as claimed in claim 1, wherein this framework more comprises:
Two supporting portions, it is relatively arranged on the both sides of this opening, and this fixing part is symmetricly set in these supporting portions.
6. the backflow device that prevents as claimed in claim 5, wherein this at least one supporting portion has a groove, and this non-return sheet is in to being provided with a male member in the groove position, and this male member moves in this groove, with the range of this non-return sheet of length restriction of groove.
7. the backflow device that prevents as claimed in claim 1, wherein this clamping structure is a trip.
8. the backflow device that prevents as claimed in claim 1, wherein this non-return sheet has at least one groove, to alleviate this non-return sheet weight.
9. fan component comprises:
One fan frame;
One fan body is arranged at this fan frame; And
One prevents backflow device, is fastened in this fan frame, and it comprises a framework, at least one clamping structure and at least one non-return sheet, this framework has an opening and at least one fixing part, this clamping structure is connected with this framework, and this non-return sheet is coupled to this fixing part, and covers this opening.
10. fan component as claimed in claim 9, wherein this framework and these clamping structures are formed in one and make, or are independent the setting.
11. fan component as claimed in claim 9, wherein this prevents that backflow device from comprising that more at least one interdiction piece is connected with this framework, to limit the range of these non-return sheets.
12. fan component as claimed in claim 9, wherein these interdiction pieces are that a protuberance and be formed in one with this framework is made, or are independent the setting.
13. fan component as claimed in claim 9, wherein this framework more comprises:
Two supporting portions, it is relatively arranged on the both sides of this opening, these fixing parts are symmetricly set in these supporting portions respectively, and this at least one supporting portion has a groove, this non-return sheet is in to being provided with a male member in the groove position, this male member moves in this groove, with the range of this non-return sheet of length restriction of groove.
14. fan component as claimed in claim 9, wherein this fan frame has more many installation holes, and this prevents that backflow device from having more multiple hole and being oppositely arranged with these installation holes respectively.
15. fan component as claimed in claim 9, wherein this non-return sheet has at least one groove, to alleviate this non-return sheet weight.
16. fan component as claimed in claim 9, wherein this fan frame has an exhaust outlet, corresponding to this opening of this framework.
17. fan component as claimed in claim 9, wherein this prevents that backflow device is arranged at the air-out oral-lateral of this fan frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101628013A CN101191501A (en) | 2006-11-23 | 2006-11-23 | Countercurrent-proof device and fan components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101628013A CN101191501A (en) | 2006-11-23 | 2006-11-23 | Countercurrent-proof device and fan components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101191501A true CN101191501A (en) | 2008-06-04 |
Family
ID=39486677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101628013A Pending CN101191501A (en) | 2006-11-23 | 2006-11-23 | Countercurrent-proof device and fan components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101191501A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744803A (en) * | 2016-03-21 | 2016-07-06 | 联想(北京)有限公司 | Electronic equipment |
| CN110159560A (en) * | 2018-02-14 | 2019-08-23 | 纬创资通股份有限公司 | Back-flow preventer and the server system for using its back-flow preventer |
| WO2022247397A1 (en) * | 2021-05-24 | 2022-12-01 | 中兴通讯股份有限公司 | Fan apparatus and electronic device |
-
2006
- 2006-11-23 CN CNA2006101628013A patent/CN101191501A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744803A (en) * | 2016-03-21 | 2016-07-06 | 联想(北京)有限公司 | Electronic equipment |
| CN110159560A (en) * | 2018-02-14 | 2019-08-23 | 纬创资通股份有限公司 | Back-flow preventer and the server system for using its back-flow preventer |
| WO2022247397A1 (en) * | 2021-05-24 | 2022-12-01 | 中兴通讯股份有限公司 | Fan apparatus and electronic device |
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| PB01 | Publication | ||
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Application publication date: 20080604 |