CN205013374U - Silence structure of fan blade - Google Patents
Silence structure of fan blade Download PDFInfo
- Publication number
- CN205013374U CN205013374U CN201520586783.6U CN201520586783U CN205013374U CN 205013374 U CN205013374 U CN 205013374U CN 201520586783 U CN201520586783 U CN 201520586783U CN 205013374 U CN205013374 U CN 205013374U
- Authority
- CN
- China
- Prior art keywords
- sawtooth
- fan blade
- stick
- blade
- bonding connection
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a silence structure of fan blade, including and gluing the strip with the leeward side edge part bonding connection's of fan blade sawtooth, the cross section that the sawtooth glues the strip is steadilyd decrease to both sides by the centre for thickness, and one side that the sawtooth glues is provided with from blade root portion to the crescent a plurality of sawtooth of the apex tooth body cross sectional area of portion of fan blade, and the opposite side is provided with the concave part with the leeward side edge part bonding connection of fan blade, and the inner wall of concave part is provided with the viscose layer that is used for with fan blade bonding connection. The utility model discloses a silence structure of fan blade, through be provided with can with fan blade bonding connection's sawtooth adhesive tape, the sawtooth of sawtooth adhesive tape is the burble when rotatory, the vortex is at the cancel each other out of intersection to reduce the noise.
Description
Technical field
The utility model belongs to blower fan quietness technology field, is specifically related to a kind of mute structure of fan blade.
Background technique
What existing fan blade great majority adopted is all monoblock construction, and fan blade is in rotary course, and air end of leaving away is form of straight lines, and wind-force is even, easily forms air resonance, thus produces huge noise.
Model utility content
The purpose of this utility model is: in order to improve the large problem of fan noise, provide a kind of mute structure of fan blade, sawtooth stick can with fan blade rapid link, the huge noise produced can be effectively reduced in fan blade rotary course by sawtooth stick.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of mute structure of fan blade, comprise the sawtooth stick with the bonding connection of leeward side edge part of fan blade, the cross section of sawtooth stick is that thickness is successively decreased to both sides by centre, the side of sawtooth stick is provided with several sawtooth increased gradually to leaf tip tooth body cross sectional area from the blade root of fan blade, opposite side is provided with the groove part with the bonding connection of leeward side edge part of fan blade, and the inwall of groove part is provided with the adhesive-layer for connection bonding with fan blade.
Preferably, sawtooth stick adopts vulcanite to make.
Preferably, described sawtooth is provided with 6-8.
Preferably, described sawtooth increases from the blade root of fan blade gradually to leaf tip tooth body cross sectional area, and the tooth root width and the tooth depth that comprise sawtooth increase all gradually.
Preferably, described sawtooth adopts lance tooth, and sawtooth is all obliquely installed towards the blade root of fan blade.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
The mute structure of a kind of fan blade of the present utility model, by arranging several profiles of tooth from fan blade blade root to the increasing sawtooth of leaf tip profile of tooth on sawtooth stick, from blade root more close to position stressed minimum, so profile of tooth is also less, when fan blade rotates, saw tooth structure makes air produce eddy current at sawtooth, and the linear velocity of the position at each saw tooth structure place is different, its produce eddy current must each portion identical, cancel out each other in intersection, noise reduces greatly.After sawtooth stick of the present utility model is installed, the quiet 30%-50% be reduced to when not installing sawtooth stick.
Accompanying drawing explanation
Fig. 1 is fan worm's eye view of the present utility model.
Fig. 2 is the fan balde structure schematic diagram being provided with mute structure of the present utility model.
Fig. 3 is mute structure sectional view of the present utility model.
Mark in figure: 10-fan blade, 11-leeward side edge part, 12-leaf tip, 13-blade root, 20-sawtooth stick, 21-sawtooth, 22-groove part, 30-adhesive-layer, 40-eddy current.
Embodiment
With reference to Fig. 1-3, the mute structure of a kind of fan blade of the present utility model, comprise the sawtooth stick 20 with the bonding connection of leeward side edge part 11 of fan blade 10, the cross section of sawtooth stick 20 is that thickness is successively decreased to both sides by centre, the side of sawtooth stick 20 is provided with several sawtooth 21 increased gradually to leaf tip 12 tooth body cross sectional area from the blade root 13 of fan blade 10, preferably be provided with 6-8, in order to ensure the intensity of sawtooth stick 20, sawtooth stick 20 adopts vulcanite to make, described sawtooth 21 increases from the blade root 13 of fan blade 10 gradually to leaf tip 12 tooth body cross sectional area, the tooth root width and the tooth depth that comprise sawtooth 21 increase all gradually.Described sawtooth 21 adopts lance tooth, and sawtooth 21 is all obliquely installed towards the blade root 13 of fan blade 10, and muting function is better.
The opposite side of sawtooth stick 20 is provided with the groove part 22 with the bonding connection of leeward side edge part 11 of fan blade 10, and the inwall of groove part 22 is provided with the adhesive-layer 30 for connection bonding with fan blade 10.By being provided with adhesive layer, being connected and fixed fast of sawtooth stick 20 and fan blade 10 can being realized, for the fan used, also for fan blade 10, this mute structure can be installed, easy for installation, quick.
Mute structure of the present utility model, due to the leaf tip 12 from fan blade 10 more close to position stressed larger, so sawtooth 21 shape is larger; And from blade root 13 more close to position stressed minimum, so sawtooth 21 shape is less.When fan blade 10 rotates, sawtooth stick 20 makes air produce eddy current 40 at the crown of sawtooth 21, and the linear velocity of the position at each sawtooth 21 place is different, and its eddy current 40 produced must be different, crossing and can cancel out each other, therefore noise can greatly reduce.Meanwhile, the air due to fan blade 10 is left away and held is no longer flat shape, and stressed and deformation when fan blade 10 rotates also can improve, and the noise produced by fan blade 10 also will improve.
Claims (5)
1. the mute structure of a fan blade, it is characterized in that, comprise the sawtooth stick (20) with leeward side edge part (11) the bonding connection of fan blade (10), the cross section of sawtooth stick (20) is that thickness is successively decreased to both sides by centre, the side of sawtooth stick (20) is provided with several sawtooth (21) increased gradually to leaf tip (12) tooth body cross sectional area from the blade root (13) of fan blade (10), opposite side is provided with the groove part (22) with leeward side edge part (11) the bonding connection of fan blade (10), the inwall of groove part (22) is provided with for the adhesive-layer (30) with fan blade (10) bonding connection.
2. mute structure according to claim 1, is characterized in that, sawtooth stick (20) adopts vulcanite to make.
3. mute structure according to claim 1, is characterized in that, described sawtooth (21) is provided with 6-8.
4. mute structure according to claim 1, it is characterized in that, described sawtooth (21) increases from the blade root (13) of fan blade (10) gradually to leaf tip (12) tooth body cross sectional area, and the tooth root width and the tooth depth that comprise sawtooth (21) increase all gradually.
5. mute structure according to claim 1, is characterized in that, described sawtooth (21) adopts lance tooth, and sawtooth (21) is all obliquely installed towards the blade root of fan blade (10) (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586783.6U CN205013374U (en) | 2015-08-06 | 2015-08-06 | Silence structure of fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586783.6U CN205013374U (en) | 2015-08-06 | 2015-08-06 | Silence structure of fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013374U true CN205013374U (en) | 2016-02-03 |
Family
ID=55211983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520586783.6U Expired - Fee Related CN205013374U (en) | 2015-08-06 | 2015-08-06 | Silence structure of fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018096573A (en) * | 2016-12-09 | 2018-06-21 | フルタ電機株式会社 | Building gate air cutoff device |
| TWI775377B (en) * | 2021-04-06 | 2022-08-21 | 宏碁股份有限公司 | Cooling fan |
-
2015
- 2015-08-06 CN CN201520586783.6U patent/CN205013374U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018096573A (en) * | 2016-12-09 | 2018-06-21 | フルタ電機株式会社 | Building gate air cutoff device |
| TWI775377B (en) * | 2021-04-06 | 2022-08-21 | 宏碁股份有限公司 | Cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20170806 |