CN1239829C - Turbine fan - Google Patents
Turbine fan Download PDFInfo
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- CN1239829C CN1239829C CN 02149479 CN02149479A CN1239829C CN 1239829 C CN1239829 C CN 1239829C CN 02149479 CN02149479 CN 02149479 CN 02149479 A CN02149479 A CN 02149479A CN 1239829 C CN1239829 C CN 1239829C
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- maincenter
- turbofan
- fan
- curved surface
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Abstract
The present invention relates to a turbofan which is installed in a machine such as air conditioners, etc., and can force air to move. The present invention is characterized in that the turbofan comprises a fan housing for forming a suction port, a central pivot corresponding to the fan housing, which is inserted into the fixing part of a rotating shaft of an engine, is arranged at the center, and has a definite interval with the fan housing, a plurality of fan wings which are arranged between the fan housing and the central pivot, and guide introduced air toward circumferential directions of the fan, and auxiliary curved surface materials for counteracting a projection generated between the fixing part and the central pivot, which are arranged at the circumference of the fixing part to cause the fixing part and the central pivot to form a curved line. The turbofan of the present invention improves the central pivot structure to cause air to easily flow into the turbofan, air output is increased, and simultaneously, noise is reduced.
Description
Technical field
The present invention relates to the ventilating part of forcing mobile air effect that plays in universal device on a kind of machine that is installed in fields such as air conditioning or the component, particularly improved the structure of maincenter, make air flow into turbofan inside more easily, increase air output, the turbofan that noise is reduced.
Background technique
Seeing also shown in Figure 1ly, is the sectional structure schematic representation of existing turbofan.Existing turbofan 20.As shown in Figure 1, be arranged on the spool 1 of various machine intimates such as air-conditioning, the running shaft 12 of motor 10 is connected rotating center, if motor 10 drives, can rotate concurrent living air-supply power spool 1 in, and it is constructed as follows:
Be positioned at the suction port of said reel 1, with the fan guard 22 that sucks the suction hole that air uses, with keep certain interval and relative with said fan cover 22, the running shaft 12 of above-mentioned motor 10 is connected the maincenter 26 of central authorities, and, be arranged between said fan cover 22 and the maincenter 26, keep certain intervals that several fan wings 30 are set around the maincenter circumferencial direction, pressure will be led the air that said fan cover 22 into sucks oral-laterals and guide to the fan circumferencial direction.
Said fan cover 22 front shape ringwise, its radius is compared will be relative big with the maincenter 26 that is arranged on the opposite, inwardly recessed curved face part is along with circumferential surface forms, the drag when reducing air and import with this.
The front shape of above-mentioned maincenter 26 is rounded, and its central position is forwards outstanding, slowly to reduce the air drag that imports from the place ahead, simultaneously the movement direction of air is turned to the fan circumferencial direction and spues.
Also have, motor 10 is set, the fixing part 14 that can insert engine revolution axle 12 is set directly over central position in the inboard of the outstanding central position of above-mentioned maincenter 26.
And the radius of above-mentioned maincenter 26 is smaller relatively than fan guard 22, and this is in order to cast turbofan separately, to be convenient to metal mold and to make.
The interior lateral section of the above-mentioned fan wing 30 becomes bent state, be positioned at said fan cover 22 and maincenter 26 inboards, the length of the fan wing section 32 of close fan guard is identical with fan guard circumferential discontinuity 22a, compares and will give prominence to a bit laterally with maincenter circumferential discontinuity 26a near the fan wing section 34 of maincenter.
In addition, at the suction port of said reel 1 bellmouth 40 is set, these bellmouth central authorities form inhales hole, and above-mentioned suction hole is inner to form curved surface, so that suck air during 20 rotations of above-mentioned turbofan.
Now the operation with above-mentioned existing turbofan is described as follows:
At first, connect power supply, running shaft 12 will drive above-mentioned maincenter 26 rotations when motor 10 drove, and the rotating force of maincenter 26 is communicated to several fan wing 30 and fan guards 22, and turbofan 20 will be the center rotation with above-mentioned running shaft thereupon.
At this moment, the air in bellmouth 40 the place aheads is because the air-supply power that produced of the fan wing 30 successively by bellmouth 40 and fan guard 22, is drawn onto the inboard of fan guard 22 and maincenter 26, tells circumferencial direction to fan by maincenter 26 and several fan wings 30 again.
But, existing turbofan is because outstanding forward maincenter 26 central authorities insert the fixing part 14 of motor 10 running shafts 12, when so the suction hole inhaled air by fan guard 22 turns to the fan circumferencial direction along with its direct of travel of curved surface of maincenter 26, because the protuberance that is generated in said fixing portion 14 produces drag, therefore fan air-supply efficient will occur and reduce the problem that noise also increases thereupon.
This shows that above-mentioned existing turbofan still has many defectives, and demands urgently further being improved.
In order to solve the problem that above-mentioned turbofan exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing turbofan exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of turbofan of new structure, can improve general existing on the market conventional turbofan structure, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing turbofan exists, and provide a kind of turbofan of new structure, technical problem underlying to be solved is: insert the protuberance that forms between the fixing part of engine revolution axle and the maincenter for offsetting central authorities at maincenter, an attached material of curved surface that forms curved surface at protuberance is set, by the fan guard inhaled air along with the curved surface of maincenter when the circumferencial direction of fan is changed its direct of travel, the drag of air can be reduced to minimum degree, thereby improve air-supply efficient, also reduce noise.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technological scheme to realize.Turbofan according to the present invention's proposition, its characteristics comprise: form suction port fan guard and, also relative with the interval that said fan cover keeps certain, insert the fixing part of engine revolution axle and be arranged on central authorities and by engine-driven maincenter and, be arranged between said fan cover and the maincenter and with the air that imports a plurality of fan wings to the guiding of fan circumferencial direction, and, be to offset the protuberance that generates between said fixing portion and the maincenter, a secondary material of curved surface that said fixing portion and maincenter is formed a curve is set at the circumference of said fixing portion.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
Aforesaid turbofan, the side view of the secondary material of wherein said curved surface is ladder-type, makes the plane at the upside of spheroid, forms the hole that can insert the maincenter fixing part in central authorities.
Aforesaid turbofan, the internal diameter in wherein said hole is from diminishing gradually with the collide inside of a sidewise hole of described maincenter, be by the contacting part that is close on the described maincenter curved surface, have the hole of certain internal diameter with forming to the upper end of the secondary material of above-mentioned curved surface, and two parts in insertion part that are sandwiched in the curved surface of above-mentioned maincenter are formed from the upper end of above-mentioned contacting part.
Aforesaid turbofan, the secondary material of wherein said curved surface is the cone that forms the inwardly recessed high cap shape of curved surface, its inboard formation certain space can insert the fixing part of above-mentioned maincenter.
Aforesaid turbofan, the secondary material of wherein said curved surface is to be made by sound absorbing material.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, the advantage of the turbofan of special construction of the present invention is: the fixing part that inserts the engine revolution axle generates protuberance with the position that maincenter is set, for making fixing part and maincenter form curved surface the secondary material of a curved surface is set, make the air that imports by fan guard be convenient to turn to the fan circumferencial direction, and then the air-supply power of raising turbofan, by the secondary material of the curved surface of being made by sound absorbing material, noise also can reduce thereupon in addition.
In sum, the turbofan of special construction of the present invention, insert the protuberance that forms between the fixing part of engine revolution axle and the maincenter for offsetting central authorities at maincenter, an attached material of curved surface that forms curved surface at protuberance is set, by the fan guard inhaled air along with the curved surface of maincenter when the circumferencial direction of fan is changed its direct of travel, the drag of air can be reduced to minimum degree, thereby improve air-supply efficient, also reduce noise.It has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use, no matter and it structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the sectional structure schematic representation of existing turbofan.
Fig. 2 is the sectional structure schematic representation of turbofan of the present invention.
Fig. 3 is the plan view and the plan view of the secondary material of the curved surface among the embodiment shown in Fig. 2.
Fig. 4 is another embodiment's of a turbofan of the present invention cross-sectional side view.
Fig. 5 is the outline drawing of the secondary material of the curved surface among the embodiment shown in Fig. 4.
The mark of critical piece in the accompanying drawing:
1-spool 10-motor
12-running shaft 14-fixing part
20-turbofan 22-fan guard
22a-fan guard circumferential discontinuity 26-maincenter
26a-is near the fan wing section 30-fan wing of maincenter
32-is near the fan wing section 34-maincenter circumferential discontinuity of fan guard
40-bellmouth 51-spool
60-motor 62-running shaft
70-turbofan 72-fan guard
72a-fan guard circumferential discontinuity 76-maincenter
76a-maincenter circumferential discontinuity 76b-fixing part
80-fan wing 82-is near the fan wing section of fan guard
84-is near the fan wing section 90-bellmouth of maincenter
The secondary material 102-of 100-curved surface hole
102a-contacting part 102b-insertion part
151-spool 160-motor
162-running shaft 170-turbofan
172-fan guard 176-maincenter
176a-fixing part 180-fans the wing
The secondary material 202-of 200-curved surface space portion
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of turbofan, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Fig. 2 is a cross-sectional side view of implementing example of the turbofan according to the present invention.
Consult shown in Figure 2, being constructed as follows of turbofan 70 of the present invention:
It comprises: form the fan guard 72 of inhaling the hole and being arranged on spool 51 inboards; Keep certain interval and relative with fan guard 72, be connected motor 60 and by the maincenter 76 of its driving; Be arranged between said fan cover 72 and the maincenter 76 and keep certain intervals to circumferencial direction, can be with the air diverts maincenter 76 that imports by fan guard 72 to fan circumferencial direction and a plurality of fan wings 80 of spuing; Be arranged on maincenter 76 central authorities, will reduce to the secondary material 100 of curved surface that minimum degree also can be changed its direct of travel by the air drag that fan guard 72 imports.
Said fan cover 72 front shape ringwise and form suction port, inwardly recessed curved surface is along with circumferential surface forms, institute is so that inhaled air turns to the fan circumferencial direction.
Above-mentioned maincenter 76 fronts are rounded, and central position is protruding in the front of fan guard 72, so by the curved surface of fan guard 72 inhaled airs with the central position that protrudes, be more conducive to turn to the circumferencial direction of fan.
Also have, the inboard of the central position that protrudes at above-mentioned maincenter 76 is provided with motor 60, and four jiaos of type fixing part 76b that insert engine revolution axle 62 protrude the middle at maincenter 76 central positions.
In addition, the radius of above-mentioned maincenter 76 is smaller relatively than fan guard 72, and this is in order to cast turbofan separately, to be convenient to metal mold and to make.
Also have, the protuberance that forms between above-mentioned maincenter 76 and fixing part 76b is provided with a secondary material 100 of curved surface that protuberance is filled up and the 76b of said fixing portion and maincenter 76 are formed a curve, the air that can import by fan guard 72 like this, the air drag when the curved surface of maincenter 76 turns to the circumferencial direction of fan reduces to minimum degree.
At this, the secondary material 100 of above-mentioned curved surface, as shown in Figure 3, for making its side view be ladder-type, upside at spheroid makes the plane, forms the hole 102 that can insert maincenter 76 fixing part 76b in central authorities, and the protuberance that forms between fixing part 76b and the maincenter 76 should be able to be injected in this hole 102.
At this, the internal diameter in above-mentioned hole 102 is from diminishing gradually with the collide inside of a sidewise hole 102 of above-mentioned maincenter 76, its structure be by be close on above-mentioned maincenter 76 curved surfaces contacting part 102a and, form the hole of certain internal diameter from the upper end of above-mentioned contacting part 102a to the upper end of the secondary material 100 of above-mentioned curved surface, can inject two parts of insertion part 102b of above-mentioned maincenter 76 fixing part 76b and form.
Then, the secondary material 100 of above-mentioned curved surface can be offset the protuberance between maincenter 76 and the fixing part 76b, is made of sound absorbing materials such as polyurethane foams when reducing noise, also can extraordinarily reduce the effect of noise.
Lateral section is curved shape in the above-mentioned fan wing 80, be positioned at the inboard of said fan cover 72 and maincenter 76, the fan wing 80 is identical with fan guard circumferential discontinuity 72a length near the length of the section 82 of fan guard, and the fan wing 80 outwards protrudes than maincenter circumferential discontinuity 76a near section 84 length of maincenter again.
In addition, at the suction port of said reel 51 bellmouth 90 is set, these bellmouth central authorities form inhales hole, and the inner curved surface that forms in above-mentioned suction hole sucks air when being convenient to above-mentioned turbofan 70 rotations.
Operation by the above-mentioned turbofan of the present invention that constitutes is as follows:
At first, connect power supply, motor 60 drives, and running shaft 62 will drive above-mentioned maincenter 76 rotations, and the rotating force of maincenter 76 is communicated to several fan wing 80 and fan guards 72, and turbofan 70 is that the center rotates with running shaft 62 just.
At this moment, the air-supply power that the air in bellmouth 90 the place aheads is generated by the fan wing 80 successively by bellmouth 90 and fan guard 72, is drawn onto the inboard of fan guard 72 and maincenter 76, is told to the fan circumferencial direction by maincenter 76 and several fan wings 80.
At this moment, because on the protuberance that forms between fixing part 76b that links to each other with motor 60 running shafts 62 and the maincenter 76, be provided with the secondary material 100 of curved surface, maincenter 76 and fixing part 76b form a curve, the air that imports by fan guard 72 is along with this curve is changed its direct of travel easily, so can improve the air-supply efficient of fan, also can reduce by secondary material 100 noises of the curved surface of making by sound absorbing material in addition.
Fig. 4 is the cross-sectional side view according to another embodiment of turbofan of the present invention.
Another embodiment of turbofan of the present invention and last embodiment's identical construction are in the suction port inboard of spool 151 turbofan 170 to be set, and turbofan 170 comprises fan guard 172, maincenter 176, a plurality of fan wings 180, the secondary material 200 of curved surface.But the secondary material 200 of above-mentioned curved surface is different with last embodiment, and its side view is high cap shape.
Referring to shown in Figure 5, the secondary material 200 of above-mentioned curved surface is characterised in that it is to form the high cap shape of curved surface that concaves on the spheroid inclined-plane, and its inboard space portion 202 that forms is included the fixing part 176a of maincenter 176 and the running shaft 162 of motor 160 wherein.
The technological innovation of the turbofan of the present invention that above-mentioned structure like this constitutes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (5)
1, a kind of turbofan is characterized in that it comprises:
Form the fan guard of suction port;
Maincenter, it is also relative with the interval that said fan cover keeps certain, and the fixing part that inserts the engine revolution axle also is arranged on central authorities, and passes through engine-driving;
A plurality of fan wings, it is arranged between said fan cover and the maincenter, and the air that imports is guided to the fan circumferencial direction; And
Be to offset the protuberance that generates between said fixing portion and the maincenter, a secondary material of curved surface that said fixing portion and maincenter is formed a curve is set at the circumferential surface of said fixing portion.
2, turbofan according to claim 1 is characterized in that the side view of the secondary material of wherein said curved surface is ladder-type, makes the plane at the upside of spheroid, forms the hole that can insert the maincenter fixing part in central authorities.
3, the turbofan above-mentioned according to claim 2, the internal diameter that it is characterized in that wherein said hole is from diminishing gradually with the collide inside of a sidewise hole of described maincenter, be by the contacting part that is close on the described maincenter curved surface, have the hole of certain internal diameter with forming to the upper end of the secondary material of above-mentioned curved surface, and two parts in insertion part that are sandwiched in the curved surface of above-mentioned maincenter are formed from the upper end of above-mentioned contacting part.
4, turbofan according to claim 1 is characterized in that the secondary material of wherein said curved surface is the cone that forms the inwardly recessed high cap shape of curved surface, and its inboard formation certain space can insert the fixing part of above-mentioned maincenter.
5,, it is characterized in that the secondary material of wherein said curved surface is to be made by sound absorbing material according to the described turbofan of arbitrary claim in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149479 CN1239829C (en) | 2002-11-21 | 2002-11-21 | Turbine fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149479 CN1239829C (en) | 2002-11-21 | 2002-11-21 | Turbine fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1502820A CN1502820A (en) | 2004-06-09 |
| CN1239829C true CN1239829C (en) | 2006-02-01 |
Family
ID=34233680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02149479 Expired - Fee Related CN1239829C (en) | 2002-11-21 | 2002-11-21 | Turbine fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239829C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564840A (en) * | 2013-10-22 | 2015-04-29 | 台达电子工业股份有限公司 | Air fan component and flow-guide cover thereof |
| CN108488083A (en) * | 2018-04-26 | 2018-09-04 | 英飞凌（深圳）智慧科技有限公司 | A kind of wind turbine and air purifier |
| CN113309717B (en) * | 2020-02-26 | 2023-01-20 | 神讯电脑(昆山)有限公司 | Fan assembly and electronic device |
-
2002
- 2002-11-21 CN CN 02149479 patent/CN1239829C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1502820A (en) | 2004-06-09 |
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| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060201 Termination date: 20091221 |