CN203239644U - Low-noise fan device - Google Patents
Low-noise fan device Download PDFInfo
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- CN203239644U CN203239644U CN 201320205616 CN201320205616U CN203239644U CN 203239644 U CN203239644 U CN 203239644U CN 201320205616 CN201320205616 CN 201320205616 CN 201320205616 U CN201320205616 U CN 201320205616U CN 203239644 U CN203239644 U CN 203239644U
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- noise
- noise reduction
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Abstract
The utility model provides a low-noise fan device. The low-noise fan device comprises an outer frame, a stator base fixedly connected with the outer frame, a rotor assembly, and blades fixed with the rotor assembly. The low-noise fan device is characterized in that rubber structures are arranged outside fixing screw holes of the outer frame and on partial or all blades. According to the low-noise fan device, rubber structural components are filled between the outer frame fixing a rotor of the fan device and a fixing plate and used for reducing vibration noise, the rubber structural components are attached to the partial or all hard materials of the blades of the outer frame of a common fan, a soft rubber surface is arranged on the windward position where the fan device and fluid impact and vibrate to generate the noise easily and used for absorbing vibration caused by impact of motion of the fluid, and therefore the effect of reducing the noise is achieved. The rubber structures are attached through manual assembly or the molding technology and used for sound absorption and noise reduction, the basic performance of a fan is not influenced, and the noise reduction effect is good. Compared with a low-noise fan device in the prior art, the low-noise fan device is better in noise reduction effect.
Description
Technical field
The utility model relates to a kind of fan assembly of low noise, specifically, is the radiating fan device that is used in the low noise in the heat radiation cooling system of the electronic products such as computer.
Background technique
During fan running, because of blade cuts, bump air and housing and produce undesirable noise, especially under high running speed, noise is judged the key parameter of product quality often.In the electronic product radiating field, noise is the missing point that the puzzlement consumer products is experienced always, and noise reduction technology also is the difficult point that each relevant manufacturer makes great efforts to capture.
And the Chinese patent technology CN201047925Y that has had at present discloses a kind of elastic shock-absorbing low noise computer fan technology, between fan blade stator base and skeleton frame, to adopt spring or other elastic materials to be connected, but its connection is unstable, rotation speed of the fan is unstable, fan easily damages, and patent CN102799239A discloses a kind of low-noise heat radiation device, is at the edge, windward side of blade saw tooth structure to be set to reduce noise, and its shortcoming is that effect is obvious not.
The model utility content
The utility model patent provides a kind of fan assembly of low noise, 1 comprise housing, with the fixing blade of stator base, a rotor assembly and the rotor assembly of housing fixed-link, it is characterized in that in the fixing threaded hole outside of housing or blade local or all be provided with rubber structure.
Described housing symmetry be provided with fixing threaded hole everywhere, rubber structure spare on the housing is U-shaped damping noise reduction rubber parts, the both sides of described fixing threaded hole and the housing inboard that links to each other are provided with the U-shaped groove structure that is complementary with U-shaped damping noise reduction rubber parts, be provided with the hole with the screw coupling on the described U-shaped damping noise reduction rubber parts, U-shaped damping noise reduction rubber parts is inserted in the U-shaped groove structure on the housing, at slightly outstanding housing edge, the both sides of screw.
Be the sound impedance structure of neutral position arranged outside of described U-shaped damping noise reduction rubber parts, described acoustic impedance structure comprises column type structural plane or hole face or trapezoidal column structural plane or the tapered structure for protruding for protruding for caving in of protrusion.
Be provided with soft rubber surfaces on the windward side of described blade.
Described blade end face and with the lee face of summit portion adjacency on be provided with the end face approximal surface, described end face approximal surface is soft rubber surfaces.
Described end face approximal surface is sickleshaped or long triangle or quadrilateral.
The fan assembly of a kind of low noise of the present utility model is the rubber structure spare that is lined with at the housing of fan attachment device rotor and fixed plate, be used for reducing vibrating noise, whole or local attached subsides rubber structure spare on the hard material of conventional fan housing blade, easily produce the noise upwind position with the fluid impact vibrations at fan assembly the vibrations that soft rubber surfaces comes absorption fluids motion bump to produce are set, reach the effect of reduction noise.This new patent fan is used for the absorbing sound and lowering noise function, and does not affect the fan key property by man-made assembly or the attached subsides rubber structure of forming technique, and noise reduction is good, and is better than the noise reduction of existing low-noise fan device.
Description of drawings
Fig. 1 is the frame structure figure of the utility model product.
Fig. 2 is the U-shaped damping noise reduction rubber parts of the utility model product topology layout figure.
Fig. 3 is the U-shaped damping noise reduction rubber parts structural drawing of pass windward side.
Fig. 4 is the U-shaped damping noise reduction rubber parts structural drawing of column type windward side.
Fig. 5 is the U-shaped damping noise reduction rubber parts structural drawing of ladder type windward side.
Fig. 6 is the windward side noise reduction figure of U-shaped damping noise reduction rubber parts.
Fig. 7 is the cementing composition of the utility model leaf packet.
Fig. 8 is the cementing composition embodiment two of the utility model leaf packet.
Fig. 9 is the cementing composition embodiment three of the utility model leaf packet.
Figure 10 is the cementing composition embodiment four of the utility model leaf packet.
Figure 11 is fixedly schematic diagram of the utility model product housing.
Embodiment
Be the frame structure figure of the utility model product such as Fig. 1, Fig. 2 is the U-shaped damping noise reduction rubber parts of the utility model product topology layout figure, the profile of housing 1 is square in the present embodiment, place, four angles is provided with screw 5, screw both sides at housing 1 form U-shaped groove structure 4 with the part that inwardly is connected, be arranged with U-shaped damping noise reduction rubber parts 2 outside the U-shaped groove structure 4, be provided with equally the screw 3 with screw 5 couplings on the U-shaped damping noise reduction rubber parts 2, also be provided with Wedge structure face 6, in the inboard of U-shaped damping noise reduction rubber parts 2 windward side is set and is provided with the acoustic impedance structure, be the structural drawing of the U-shaped damping noise reduction rubber parts 2 of pass windward side such as Fig. 3, the hole face 7 that arranges on Wedge structure face 6 and the windward side among the figure is for the structure setting that reduces the noise reduction noise, and screw 3 is the hole of mating with screw 5 in this scheme.Fig. 4 is the U-shaped yielding rubber spare structural drawing of column type windward side, and screw 3 is identical in this scheme, and the windward side of this embodiment is provided with column type structural plane 8, Wedge structure face 6 and the 8 common structure settings that are used for noise reduction of column type structural plane.Fig. 5 is the U-shaped damping noise reduction rubber parts of ladder type windward side, and the windward side of U-shaped damping noise reduction rubber parts 2 is provided with trapezoidal column structural plane 9 in the present embodiment.
As shown in Figure 6, after U-shaped damping noise reduction rubber parts 2 cover societies are on the U-shaped groove structure 4 of housing 1, fix by screw 3, because housing 1 sheathed U-shaped damping noise reduction rubber parts 2 is symmetric shape, the both sides of windward side are provided with Wedge structure face 6 when fan rotates, and be provided with the acoustic impedance structure on the windward side, the acoustic impedance structure can adopt Fig. 3 respectively, Fig. 4, scheme shown in Figure 5, be respectively hole face 7, column type structural plane 8 or trapezoidal column structural plane 9, also can adopt the projection of other structures or sunk structure as the acoustic impedance structure that reduces noise, such as triangular pyramidal etc.
Fig. 7 is provided with blade for for the cementing composition of the utility model leaf packet at rotor assembly 13, is provided with soft rubber surfaces 10 in the windward side of each blade, and lee face 11 or hard structure.The end face approximal surface of soft rubber material is set at the adjoining position of end face 14 in order to increase noise reduction, be illustrated in figure 8 as the cementing composition embodiment two of the utility model leaf packet, on lee face 11, can be arranged to the end face approximal surface 15 of long strip this moment, end face approximal surface 15 is soft rubber surfaces, such that noise reduction is set is better, and the end face 14 of blade is provided with soft rubber surfaces equally; Same reason, be shown in the cementing composition embodiment three of the utility model leaf packet such as Fig. 9, the first leg-of-mutton end face approximal surface 16 of growing up can be set on the lee face 11 that is close to end face 14, be shown in the cementing composition embodiment four of the utility model leaf packet such as Figure 10 perhaps, the place that is close to end face and side at the lee face 11 of blade is provided with sickle-shaped end face approximal surface 12.
Be installed in the rotating shaft of stator base when rotor assembly 13 after, when fan rotates, blade rotation band moving air flow on the rotor assembly 13, because be provided with soft rubber surfaces 10 on the windward side, in conjunction with aerodynamics, acoustic technique, soft rubber surfaces promote that air-flow and hard blade promote that noise that air-flow produces will be low a lot, comparing does not almost have noise, is about to noise control in tolerance interval, simultaneously at the end face of blade and the area of lee face increase soft rubber surfaces, noise reduction has been strengthened greatly, such as Fig. 8, Fig. 9, three kinds of schemes of Figure 10 certainly also can arrange the end face approximal surface of other shapes on the end face of blade and lee face; In conjunction with scheme illustrated in figures 1 and 2, four fixing threaded hole positions at framework 1 are provided with U-shaped damping noise reduction rubber parts 2, because U-shaped damping noise reduction rubber parts 2 is arranged on outside the U-shaped groove structure 4 and the outerplanar of edge protrusion framework, such as Figure 11, when being fixed on housing 1 on the fan fixed pedestal 17, U-shaped damping noise reduction rubber parts 2 can effectively alleviate fan and pedestal vibrations, also be provided with simultaneously the acoustic impedance structure of Wedge structure face 6 and inboard windward side by U-shaped damping noise reduction rubber parts 2 both sides, the damping noise reduction better effects if, the acoustic impedance structure of this moment not only can adopt such as Fig. 3, Fig. 4, three kinds of structures shown in Figure 5, or can adopt pyrometric cone or irregular projection or sunk structure, because the acoustic impedance structure of Wedge structure face 6 and inboard windward side all adopts soft rubber surfaces, the vibrations of soft rubber surfaces absorption fluids motion bump generation face reach the effect that reduces noise.
The fan assembly of a kind of low noise of the utility model patent is by man-made assembly or forming technique, at housing, on the blade all or the part be provided with rubber structure, be used for the absorbing sound and lowering noise function, and do not affect fan performance.Be to reduce noise from sources of noise at low cost at the utility model product, in conjunction with aerodynamics, acoustic technique in tolerance interval, can be done to product appearance the change of differentiation simultaneously, Promote Competitive with noise control.And conventional fan housing blade only is comprised of a kind of hard material, and in fluid motion, easy and fluid impact shakes and the generation noise.Noise reduction is better than existing procucts on the market, and the processing product easily, hardly with improving how many costs.Noise reduction is good, and is better than the noise reduction of existing low-noise fan device.
Claims (6)
1. the fan assembly of a low noise, comprise housing, with the fixing blade of stator base, a rotor assembly and the rotor assembly of housing fixed-link, it is characterized in that in the fixing threaded hole outside of housing or blade local or all be provided with rubber structure.
2. the fan assembly of a kind of low noise according to claim 1, the fixing threaded hole everywhere that is provided with that it is characterized in that described housing symmetry, rubber structure spare on the housing is U-shaped damping noise reduction rubber parts, the both sides of described fixing threaded hole and the housing inboard that links to each other are provided with the U-shaped groove structure that is complementary with U-shaped damping noise reduction rubber parts, be provided with the hole with the screw coupling on the described U-shaped damping noise reduction rubber parts, U-shaped damping noise reduction rubber parts is inserted in the U-shaped groove structure on the housing, at slightly outstanding housing edge, the both sides of screw.
3. the fan assembly of a kind of low noise according to claim 2, the sound impedance structure of neutral position arranged outside that it is characterized in that described U-shaped damping noise reduction rubber parts, described acoustic impedance structure comprise column type structural plane or hole face or trapezoidal column structural plane or the tapered structure for protruding for protruding for caving in of protrusion.
4. according to claim 2 or the fan assembly of 3 described a kind of low noises, it is characterized in that being provided with soft rubber surfaces on the windward side of described blade.
5. the fan assembly of a kind of low noise according to claim 4, it is characterized in that described blade end face and with the lee face of summit portion adjacency on be provided with the end face approximal surface, described end face approximal surface is soft rubber surfaces.
6. the fan assembly of a kind of low noise according to claim 5 is characterized in that described end face approximal surface is sickleshaped or long triangle or quadrilateral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205616 CN203239644U (en) | 2013-04-19 | 2013-04-19 | Low-noise fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205616 CN203239644U (en) | 2013-04-19 | 2013-04-19 | Low-noise fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239644U true CN203239644U (en) | 2013-10-16 |
Family
ID=49316951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320205616 Expired - Lifetime CN203239644U (en) | 2013-04-19 | 2013-04-19 | Low-noise fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239644U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895845A (en) * | 2015-06-08 | 2015-09-09 | 朱德仲 | Low-noise heat radiation fan |
| WO2018045830A1 (en) * | 2016-09-12 | 2018-03-15 | 郑州云海信息技术有限公司 | Fan system and server |
| CN108866797A (en) * | 2018-06-07 | 2018-11-23 | 广东南豆科技有限公司 | A kind of low-noise fan purification mechanism |
| CN109026836A (en) * | 2018-07-19 | 2018-12-18 | 广东美的厨房电器制造有限公司 | Fan and preparation method thereof, fan component and electric appliance |
| CN110185657A (en) * | 2016-03-11 | 2019-08-30 | 佛山市建准电子有限公司 | Fan frame with shock-absorbing function |
-
2013
- 2013-04-19 CN CN 201320205616 patent/CN203239644U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895845A (en) * | 2015-06-08 | 2015-09-09 | 朱德仲 | Low-noise heat radiation fan |
| CN110185657A (en) * | 2016-03-11 | 2019-08-30 | 佛山市建准电子有限公司 | Fan frame with shock-absorbing function |
| CN110185657B (en) * | 2016-03-11 | 2020-10-27 | 佛山市建准电子有限公司 | Fan frame with shock-absorbing function |
| WO2018045830A1 (en) * | 2016-09-12 | 2018-03-15 | 郑州云海信息技术有限公司 | Fan system and server |
| CN108866797A (en) * | 2018-06-07 | 2018-11-23 | 广东南豆科技有限公司 | A kind of low-noise fan purification mechanism |
| CN109026836A (en) * | 2018-07-19 | 2018-12-18 | 广东美的厨房电器制造有限公司 | Fan and preparation method thereof, fan component and electric appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |