CN203175906U - Double-fan-blade fan - Google Patents
Double-fan-blade fan Download PDFInfo
- Publication number
- CN203175906U CN203175906U CN 201320101230 CN201320101230U CN203175906U CN 203175906 U CN203175906 U CN 203175906U CN 201320101230 CN201320101230 CN 201320101230 CN 201320101230 U CN201320101230 U CN 201320101230U CN 203175906 U CN203175906 U CN 203175906U
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- CN
- China
- Prior art keywords
- fan
- fan blade
- blade
- motor
- column
- 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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Abstract
The utility model discloses a double-fan-blade fan. A fan blade of the fan is mainly composed of an outer fan blade, a fan blade connecting ring, an inner fan blade and a shaft coupling body. The fan blade connecting ring is a cylindrical sleeve, the shaft coupling body is connected with a motor shaft of a fan blade motor, the inner fan blade is arranged on the outer side wall of the shaft coupling body, a blade tip of the inner fan blade is connected with the inner side wall of the fan blade connecting ring, the outer fan blade is arranged on the outer side wall of the fan blade connecting ring, the outer fan blade and the inner fan blade are sickle-shaped, and a plurality of sawtooth grooves are formed in the wind facing end of the outer fan blade and the wind facing end of the inner fan blade. The double-fan-blade fan has the advantages that according to a double-fan-blade structure, wind power of a large-diameter fan blade is achieved under the condition that the diameters of the fan blades are decreased, the structure is more compact, wind outlet is more even, the phenomenon that an ordinary fan is uneven in distribution of wind outlet intensity is avoided, and wind is more close to natural wind. Meanwhile, the sawtooth grooves are formed in the sickle-shaped fan blades, larger flow and farther wind outlet distance are achieved at same rotating speed compared with an ordinary fan blade, and therefore the double-fan-blade fan is more energy-saving and lower in noise.
Description
Technical field
The utility model relates to a kind of fan, relates in particular to a kind of pair of fan blade fan.
Background technique
Fan on the market generally adopts the individual layer fan blade at present, this fan in use fan blade center can not produce wind, make regional wind-force that the fan blade center radiation comes out also a little less than, and wind-force is too powerful all around, the blowing effect of this strength distribution inequality, air quantity is alternately strong and weak, lacks the soft of natural wind, makes the people produce discomfort easily.In addition, the fan of individual layer fan blade, in order to reach corresponding air quantity, generally by adding modes such as big blade diameter or raising rotating speed, noise is bigger during operation.
The model utility content
The technical problem that the utility model mainly solves provides a kind of fan with two blade structures.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of pair of fan blade fan is provided, mainly by fan blade, blade motor, motor casing, preceding grid, back grid, column and base are formed, and described fan blade is connected with described blade motor, and described blade motor is located in the described motor casing, at this motor casing peripheral hardware described back grid is arranged, the front end of back grid is connected with described preceding grid, and described motor casing is supported in the upper end of described column, and the lower end of described column connects described base, described fan blade is mainly by external wind wheel, the fan blade fastener rings, interior fan blade and shaft coupling body are formed, and described fan blade fastener rings is a cylindrical sleeves, described shaft coupling body is connected with the motor shaft of described blade motor, the outer side wall of described shaft coupling body be provided with described in fan blade, described in the blade tip of fan blade be connected with the madial wall of described fan blade fastener rings, be provided with external wind wheel at the outer side wall of described fan blade fastener rings; Described external wind wheel and interior fan blade be shaped as sickleshaped, be provided with some serrated slot at the face wind end of external wind wheel and interior fan blade, the degree of depth of described serrated slot increases with the direction away from blade root.
Wherein, the angle of described interior fan blade and external wind wheel and motor shaft radial plane is 35 °, and the degree of depth of described serrated slot is 5～10 millimeters.
Wherein, be provided with controller in column, this controller is connected with blade motor.
Wherein, described column has double layer construction, and its column is outer to be connected with described base, and its column internal layer is connected with described motor casing, and described column internal layer can stretch in described column skin and be fixing.
The beneficial effects of the utility model are: the structure of two fan blades is except being issued to the wind-force of major diameter fan blade in the situation that the fan blade diameter reduces, allow outside the more compact structure, can also make air-out more even, avoid general fan air-out strength distribution inequality, more close to natural wind; Simultaneously, by at sickle-shaped blade serrated slot being set, comparing with common fan blade to have bigger flow and farther air-out distance when identical rotating speed, therefore also more energy-conservation, noise is littler.
Description of drawings
Fig. 1 is the schematic representation of a kind of pair of fan blade fan of the utility model;
Fig. 2 is another embodiment's of a kind of pair of fan blade fan of the utility model schematic representation;
Fig. 3 is the schematic representation of the fan blade of a kind of pair of fan blade fan of the utility model;
Fig. 4 is the sectional view of the fan blade of a kind of pair of fan blade fan of the utility model.
The primary component symbol description:
1, preceding grid; 2, fan blade; 21, external wind wheel; 22, fan blade fastener rings; 23, interior fan blade;
24, shaft coupling body; 25, serrated slot; 3, back grid; 4, blade motor; 5, motor casing;
6, column; 61, column internal layer; 62, column skin; 7, controller; 8, base.
Embodiment
By describing technology contents of the present utility model, structure characteristics in detail, realized purpose and effect, give explanation below in conjunction with mode of execution and conjunction with figs. are detailed.
See also Fig. 1, Fig. 3 and Fig. 4, present embodiment is a kind of pair of fan blade fan, mainly by fan blade 2, blade motor 4, motor casing 5, preceding grid 1, back grid 3, column 6 and base 8 are formed, and described wind 2 leaves are connected with described blade motor 4, and described blade motor 4 is located in the described motor casing 5, at these motor casing 5 peripheral hardwares described back grid 3 is arranged, the front end of back grid 3 is connected with described preceding grid 1, and the setting of fan blade grid can be isolated fan blade 2 effectively, may be to people or the deposits yields injury of outside when avoiding it to rotate, in addition, fan blade 23 and external wind wheel 21 generation inner rings and outer ring air-flow blew out with uniform whole air-flow in preceding grid 1 can also fully mix; Be supported with described motor casing 5 in the upper end of described column 6, be connected with described base 8 in the lower end of described column 6; Described fan blade 2 is mainly by external wind wheel 21, fan blade fastener rings 22, interior fan blade 23 and shaft coupling body 24 are formed, described fan blade fastener rings 22 is a cylindrical sleeves, described shaft coupling body 24 is connected with the motor shaft of described blade motor 4, the outer side wall of described shaft coupling body 24 be provided with described in fan blade 23, described in the blade tip of fan blade 23 be connected with the madial wall of described fan blade fastener rings 22, be provided with external wind wheel 21 at the outer side wall of described fan blade fastener rings 22; Described external wind wheel 21 and interior fan blade 23 be shaped as sickleshaped, be provided with some serrated slot 25 at the face wind end of external wind wheel 21 and interior fan blade 23, the degree of depth of described serrated slot 25 increases with the direction away from blade root.
Preferably, the blade quantity of described external wind wheel 21 and interior fan blade 23 is 5～9, fan blade 23 and external wind wheel 21 are 35 ° with the angle of motor shaft radial plane in described, the degree of depth of described serrated slot 25 is 5～10 millimeters, fan blade 2 when rotated, from blade root more away from the air-flow of generation more big, air-flow near blade root separates by more shallow serrated slot 25, air-flow group away from blade root cuts into little eddy current by darker serrated slot 25, therefore the degree of depth of serrated slot 25 increases with the direction away from blade root, more effectively cutting steam group makes it more near PERFECT GAS FLOW; In column 6, be provided with controller 7, the function that this controller 7 and described blade motor 4 are connected to control the rotating speed of described blade motor 4 and have time switch, the setting of controller 7 makes the convenient and hommization of the use of fan.
With reference to Fig. 3, among another embodiment of the present utility model, described column 6 has double layer construction, its column outer 62 is connected with described base 8, column internal layer 61 is connected with described motor casing 5, described column internal layer 61 can be flexible and fixing in described column outer 62, adjusts the height of described fan blade 2 with this.
The beneficial effects of the utility model are: the structure of two fan blades is except being issued to the wind-force of major diameter fan blade in the situation that the fan blade diameter reduces, allow outside the more compact structure, can also make air-out more even, avoid general fan air-out strength distribution inequality, more close to natural wind; Simultaneously, by at sickle-shaped blade serrated slot being set, comparing with common fan blade to have bigger flow and farther air-out distance when identical rotating speed, therefore also more energy-conservation, noise is littler.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (4)
1. two fan blade fan, mainly by fan blade, blade motor, motor casing, preceding grid, back grid, column and base are formed, described fan blade is connected with described blade motor, and described blade motor is located in the described motor casing, is provided with the back grid outside this motor casing, the front end of back grid is connected with preceding grid, described motor casing is supported in the upper end of described column, and the lower end of described column connects described base, it is characterized in that:
Described fan blade is mainly by external wind wheel, the fan blade fastener rings, interior fan blade and shaft coupling body are formed, described fan blade fastener rings is a cylindrical sleeves, described shaft coupling body is connected with the motor shaft of described blade motor, the outer side wall of described shaft coupling body be provided with described in fan blade, described in the blade tip of fan blade be connected with the madial wall of described fan blade fastener rings, be provided with external wind wheel at the outer side wall of described fan blade fastener rings;
Described external wind wheel and interior fan blade be shaped as sickleshaped, be provided with some serrated slot at the face wind end of external wind wheel and interior fan blade, the degree of depth of described serrated slot increases with the direction away from blade root.
2. a kind of pair of fan blade fan according to claim 1 is characterized in that: the angle of fan blade and external wind wheel and motor shaft radial plane is 35 ° in described, and the degree of depth of described serrated slot is 5～10 millimeters.
3. a kind of pair of fan blade fan according to claim 1 and 2, it is characterized in that: be provided with controller in column, this controller is connected with blade motor.
4. a kind of pair of fan blade fan according to claim 1 and 2, it is characterized in that: described column has double layer construction, its column is outer to be connected with described base, and its column internal layer is connected with described motor casing, and described column internal layer can stretch in described column skin and be fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101230 CN203175906U (en) | 2013-03-06 | 2013-03-06 | Double-fan-blade fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101230 CN203175906U (en) | 2013-03-06 | 2013-03-06 | Double-fan-blade fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175906U true CN203175906U (en) | 2013-09-04 |
Family
ID=49072609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320101230 Expired - Fee Related CN203175906U (en) | 2013-03-06 | 2013-03-06 | Double-fan-blade fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175906U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003459A (en) * | 2015-06-03 | 2015-10-28 | 吕雪萍 | Overall ultrathin blade draught fan capable of being assembled |
| CN107901324A (en) * | 2017-11-01 | 2018-04-13 | 珠海格力精密模具有限公司 | Double-deck fan blade into pouring method |
| WO2020077826A1 (en) * | 2018-10-15 | 2020-04-23 | 广东美的白色家电技术创新中心有限公司 | Fan |
| WO2023236871A1 (en) * | 2022-06-07 | 2023-12-14 | 广东汇天航空航天科技有限公司 | Motor and flying device |
-
2013
- 2013-03-06 CN CN 201320101230 patent/CN203175906U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003459A (en) * | 2015-06-03 | 2015-10-28 | 吕雪萍 | Overall ultrathin blade draught fan capable of being assembled |
| CN107901324A (en) * | 2017-11-01 | 2018-04-13 | 珠海格力精密模具有限公司 | Double-deck fan blade into pouring method |
| CN107901324B (en) * | 2017-11-01 | 2020-07-17 | 珠海格力精密模具有限公司 | Pouring method for double-layer fan blades |
| WO2020077826A1 (en) * | 2018-10-15 | 2020-04-23 | 广东美的白色家电技术创新中心有限公司 | Fan |
| WO2023236871A1 (en) * | 2022-06-07 | 2023-12-14 | 广东汇天航空航天科技有限公司 | Motor and flying device |
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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 |
Granted publication date: 20130904 Termination date: 20180306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |