CN101571145B - Wind guide fan device of model machine - Google Patents
Wind guide fan device of model machine Download PDFInfo
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- CN101571145B CN101571145B CN2008100950742A CN200810095074A CN101571145B CN 101571145 B CN101571145 B CN 101571145B CN 2008100950742 A CN2008100950742 A CN 2008100950742A CN 200810095074 A CN200810095074 A CN 200810095074A CN 101571145 B CN101571145 B CN 101571145B
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Abstract
The invention relates to a wind guide fan device of a model machine, comprising a group of casing units, a group of motor units and a group of wind guide fan units, wherein the casing units are provided with a casing and a containing cylinder which is overhead arranged in the casing. The inside of the casing is hollowly provided with a ventilation chamber, one side end of the containing cylinder is concavely provided with a containing space, the other side end of the containing cylinder is provided with an installation face, and a wiring hole penetrating to the containing space is arranged on the installation face; the back ends of the motor units are fixedly arranged on the installation face of the containing cylinder, the motor units are provided with a motor body exposed in the ventilation chamber, the back end of the motor body is connected and provided with a group of electric wires, the electric wires are directly penetrated into the containing space through the wiring hole, and the front end of the motor body is extended and provided with a rotating shaft which runs at high speed; and the wind guide fan units are provided with a fan blade fixedly arranged on the rotating shaft. With the structure, the invention can achieve the advantages of high cooling efficiency, easy assembly and favorable sealing performance.
Description
Technical field
The present invention relates to a kind of model facility, particularly relate to the guide fan device that a kind of cooling effectiveness height and assembly are easy to the model facility.
Background technique
Seeing also shown in Figure 1ly, is the composite structure sectional view of general existing guide fan device.The guide fan device 10 of general existing model facility special use mainly has a shell 11, one and is arranged on the electric motor 12 of shell 11 inside and one and connects and be located at the flabellum assembly 13 that electric motor 12 1 end places can make high speed rotating.This shell 11, its inside is hollow shape, the centre utilizes several ribs 111 to be provided with an accommodation tube 112 built on stiltsly, moving motor 12 installings of just can powering of accommodation tube 112 inner hollow are fixing, the extension of electric motor 12 1 ends is provided with one group of electric wire 121, electric wire 121 by the periphery of accommodation tube 112 penetrate stretch out after, pass shell 11 inwalls again and extend out to the outside; This electric motor 12 is stretched towards accommodation tube 112 outsides and to be provided with a running shaft 122, and this flabellum assembly 13 connects and is located on the running shaft 122, and running shaft 122 can drive flabellum assembly 13 and run up.Produce a high pressure draught whereby and promote the displacement of advancing of whole model facility.
Though above-mentioned guide fan device 10 can produce high pressure draught as power source, yet still have the improved place of following needs in the use:
The first, thermal diffusivity is bad: the electric motor 12 of general guide fan device 10 can produce high temperature when turning round, take unnecessary heat out of though there is flabellum assembly 13 to produce air-flow, but electric motor 12 is in the whole accommodation tube 112 of nuzzling, be subjected to covering of accommodation tube 112 outer walls, so its radiating efficiency is not good, electric motor 12 is overheated then to cause inner demagnetization easily, and the phenomenon that power has decay takes place.
The second, assembly is difficult for: electric motor 12 is inserted in locking in accommodation tube 112, when assembly, electric wire 121 need be penetrated the outside that extend out to shell 11 by accommodation tube 112 peripheries, because be subjected to the obstruction of shell 11 and accommodation tube 112 limit wall constructions, make that whole assembly action is quite difficult and time-consuming.
Three, seal is not good: this shell 11 need pass with supply lines 121 at its periphery wall upper drill hole, make that the shell wall of shell 11 is destructurized and do not have seal, so when the high pressure draught of flabellum assembly 13 running generations feeds shell 11 inside, produce very big noise easily because wind cuts.
This shows that the guide fan device of above-mentioned existing model facility obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, 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, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of guide fan device of model facility of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that the guide fan device of above-mentioned existing model facility exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge thereof, and the utilization of cooperation scientific principle, actively studied innovation, guide fan device in the hope of the model facility of founding a kind of new structure, can improve the guide fan device of general existing model facility, make it have more practicability.Through constantly research, design, and, create the present invention who has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
The objective of the invention is to, overcome the defective of the guide fan device existence of existing model facility, and provide a kind of guide fan device of model facility of new structure, technical problem to be solved is to make it have cooling effectiveness height, assembly is easy and seal is good effect, is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The guide fan device of a kind of model facility that propose according to the present invention, it comprises: an assembly housing unit, have a shell and a built on stilts accommodation tube that is arranged on enclosure, this enclosure hollow forms and is provided with a ventilation chamber, this accommodation tube one side place is concaved with a holding space, another side place of accommodation tube is provided with an attachment face, is equipped with a wiring hole that passes to holding space thoroughly on the attachment face; One group of motor unit, has a motor body that exposes to vent chamber, the rear end of motor body is fixedly installed on the attachment face of accommodation tube, the motor body rear end is equipped with one group of electric wire, electric wire directly feeds in the holding space via wiring hole, and the motor body front end is stretched and is provided with the running shaft that a work runs up; And one group of wind-guiding fan unit, have a flabellum that is fixedly installed on the running shaft.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The guide fan device of aforesaid model facility is concaved with several perforation on the attachment face of wherein said outer cover unit, a plurality of screws penetrate perforation by holding space motor body is fixed as interlocking.
The guide fan device of aforesaid model facility, wherein said motor body adopts the motor of external rotor pattern.
The guide fan device of aforesaid model facility, wherein said motor body one end face is provided with several bolt apertures, and this flabellum penetrates several screw interlockings in bolt apertures and be fixed on the motor body.
The guide fan device of aforesaid model facility, wherein said motor body adopts the motor of internal rotor pattern.
The guide fan device of aforesaid model facility, it also includes one group of jet pipe unit, this jet pipe unit has a taper thimble that is connected mutually with shell, and the inside of thimble is maked somebody a mere figurehead and is provided with a flow deflecting cone, and flow deflecting cone inside is provided with a bearing that stretches into fit for running shaft.
The guide fan device of aforesaid model facility, the having interior week and be the arc inner wall of same curve shape of wherein said thimble with the flow deflecting cone periphery.
The guide fan device of aforesaid model facility, it also includes one group of power unit, and this power unit has another shell that is connected mutually with this shell, built on stilts another motor and that is arranged on another enclosure connects and is located at another wind-guiding fan of doing on another motor to run up.
The guide fan device of aforesaid model facility, wherein said another motor are stretched and are provided with another root and are linked in running shaft in the accommodation tube, and another root interior of rotating shaft is provided with the hollow hole that a supply lines penetrates.
The guide fan device of aforesaid model facility, wherein said another wind-guiding fan is provided with another flabellum, and the pitch of another flabellum and this flabellum differs from one another.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of guide fan device of model facility, include an assembly housing unit, one group of motor unit and one group of wind-guiding fan unit, wherein: this outer cover unit has a shell and a built on stilts accommodation tube that is arranged on enclosure, this enclosure hollow is formed with a ventilation chamber, this accommodation tube one side place is concaved with a holding space, another side place is provided with an attachment face, is equipped with a wiring hole that passes to holding space thoroughly on the attachment face; This motor unit rear end is fixedly installed on the attachment face of accommodation tube, has a motor body that exposes to vent chamber, the motor body rear end is equipped with one group of electric wire, electric wire can directly feed in the holding space via wiring hole, and the motor body front end is stretched and is provided with the running shaft that can do to run up; This wind-guiding fan unit has a flabellum that is fixedly installed on the running shaft, and this flabellum is accepted running shaft and driven running and can produce a high pressure draught, and high pressure draught can be to the motor body cooling of lowering the temperature by ventilation chamber.
By technique scheme, the guide fan device of model facility of the present invention has following advantage and beneficial effect at least: the present invention utilizes motor unit one end to be fixed in the accommodation tube outside, can allow motor unit accept the cooling of wind-guiding fan unit whereby, have the distribution assembling easily and have a good advantage of seal.
In sum, the present invention is the guide fan device of relevant a kind of model facility, includes an assembly housing unit, one group of motor unit and one group of wind-guiding fan unit; This outer cover unit has a hollow shell and a built on stilts accommodation tube that is located in the shell; This motor unit has a motor body that is fixed in accommodation tube side place and is outer dewiness, and motor body is provided with the electric wire and a running shaft that can penetrate in the accommodation tube; This wind-guiding fan unit has one and connects the flabellum that is located on the running shaft, can reach cooling effectiveness height, assembly is easy and seal is good advantage whereby.The present invention has above-mentioned plurality of advantages and use value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the guide fan device of more existing model facility has the outstanding effect of enhancement, thereby being suitable for practicality more, really is 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, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the composite structure sectional view of general existing guide fan device.
Fig. 2 is the exploded perspective view of guide fan device first preferred embodiment of model facility of the present invention.
Fig. 3 is the composite structure sectional view of the invention described above preferred embodiment.
Fig. 4 is the action schematic representation of the invention described above preferred embodiment.
Fig. 5 is the guide fan device second preferred embodiment composite structure sectional view of model facility of the present invention.
Fig. 6 is guide fan device the 3rd preferred embodiment composite structure sectional view of model facility of the present invention.
Fig. 7 is guide fan device the 4th preferred embodiment composite structure sectional view of model facility of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of guide fan device, structure, feature and the effect thereof of the model facility that foundation the present invention is proposed, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
See also Fig. 2, shown in Figure 3, Fig. 2 is the exploded perspective view of guide fan device first preferred embodiment of model facility of the present invention, illustrate that the present invention includes an assembly housing unit, one group of motor unit and one group of wind-guiding fan unit, Fig. 3 is the composite structure sectional view of above-mentioned preferred embodiment.The guide fan device of model facility of the present invention mainly be used in dynamic model (for example aircraft, motorboat ... or the like) on, the guide fan device of the model facility of the present invention's first preferred embodiment consists predominantly of an assembly housing unit 20, one group of motor unit 30 and one group of wind-guiding fan unit 40.After now the composition member of above-mentioned each unit and composite structure space kenel being specified in.
Above-mentioned outer cover unit 20 has the shell 21 of a cylindrical shape and a built on stilts accommodation tube 22 that is arranged on shell 21 inside;
This shell 21, its inner hollow form and are provided with a ventilation chamber 23;
This accommodation tube 22, its periphery by several ribs 24 and shell 21 inwalls mutually in succession, accommodation tube 22 is maked somebody a mere figurehead at shell 21 bosom places, accommodation tube 22 front side end places are concaved with a holding space 221, be provided with an attachment face 222 and the rear side end place is flat, be equipped with a wiring hole 223 that passes to holding space 221 thoroughly on this attachment face 222, on the attachment face 222 and be concaved with several the perforation 224, a plurality of screws 25 are gone in the perforation 224 by holding space 221 break-through, can fix as interlocking motor unit 30, the affixed tapered sleeve 26 that is provided with is located in the place ahead of accommodation tube 22, and the front end place of this tapered sleeve 26 is provided with an opening 261.
Above-mentioned motor unit 30 is fixedly installed on the attachment face 222 of accommodation tube 22, has a motor body 31 that exposes in the ventilation chamber 23;
In the present embodiment, motor body 31, adopt the brushless motor of external rotor pattern, motor body 31 1 side places are equipped with one group of electric wire 32, electric wire 32 can penetrate from the wiring hole 223 of accommodation tube 22, directly arrive in the holding space 221, pass to stretch out by tapered sleeve 26 openings 261 again and be connected with an external power supply (figure does not show), power supply turns for motor body 31 whereby, motor body 31 another side places extensions are provided with a running shaft 33, the tail end of this running shaft 33 is provided with a thread section 331, and running shaft 33 can run up with motor body 31 one interlocks.In addition. on the terrace of motor body 31 rear end, be concaved with several bolt apertures 34.
Above-mentioned wind-guiding fan unit 40 has one and is fixedly installed on flabellum 41 on the running shaft 33, flow deflecting cone 42 that is arranged on place, flabellum 41 rears and interlocking flow deflecting cone 42 and is fixed on nut 43 on the running shaft 33;
This flabellum 41, include a center axle bed 411, a plurality of screw 412 and one group of blade 413, center axle bed 411 utilizes a plurality of screws 412 to penetrate interlocking on the bolt apertures 34 of motor unit 30, center axle bed 411 can be the one interlock with motor body 31 whereby, blade 413 cover pivots are fixed on the center axle bed 411, after accepting running shaft 33 and driving running, blade 413 can allow and produce high pressure draughts in the ventilation chamber 23;
This flow deflecting cone 42 has the arc cone of predetermined length, and its tail end is concaved with a taper hole 421;
This nut 43 can be inserted in the taper hole 421, and running shaft 33 stretches to flow deflecting cone 42 inside, and its thread section 331 just is screwed with nut 43.
More than be each the member shape of guide fan device of model facility of the present invention and the general introduction of composite structure space kenel, the effect that action of the present invention and expection can be reached below then is described again.
Seeing also shown in Figure 4ly, is the action schematic representation of the invention described above preferred embodiment, illustrates that wind-guiding fan unit produces a high pressure draught motor unit is directly cooled off.When power supply makes running shaft 33 begin to start for motor unit 30, flabellum 41 is accepted running shaft 33 and is driven and can run up, and produce a high pressure draught and enter in the ventilation chamber 23, because motor body 31 is to expose to be arranged in the ventilation chamber 23, therefore high pressure draught can directly blow motor body 31, the heat that motor body 31 is produced blows discharge, can reach splendid radiating effect whereby.
In sum, the guide fan device of model facility of the present invention, it mainly is the problem that reaches radiating efficiency in general existing guide fan device 10 assembly in order to solve, technological means of the present invention mainly is to allow an end of motor unit 30 be fixed in accommodation tube 22 outboard end places, the electric wire 32 of motor unit 30 is via accommodation tube 22 penetrable outer stretching, the distribution action is quite quick and easy, the time of assembly can significantly be saved, in addition, this electric wire 32 is to enter in the accommodation tube 22 again to picking out, do not need the shell wall structure of outer cover unit 20 destruction of getting into the cave, therefore the whole seal of the present invention is quite good, can not produce too big noise during running, motor unit 30 allows motor body 31 expose to ventilation chamber 23, and in flabellum 41 carrying out operation process, the high pressure air of generation failed to be convened for lack of a quorum to import in the ventilation chamber 23 motor body 31 is directly blown, can be apace with the heat band from, motor unit 30 is had splendid cooling effect.
In addition, using technology of the present invention can also produce different enforcement aspects, see also shown in Figure 5ly, is the composite structure sectional view of guide fan device second preferred embodiment of model facility of the present invention, and the situation that another group motor unit is set is described.The guide fan device of the model facility of the present invention's second preferred embodiment, have an assembly housing unit 20 and one group of wind-guiding fan unit 40 equally, different with first embodiment is, be equipped with another group motor unit 30 ' on the outer cover unit 20 inner accommodation tubes 22, another group motor unit 30 ' has a motor body 31 ', this motor body 31 ' adopts the motor of internal rotor pattern, its rear end is stretched by the inside connection and is provided with a running shaft 33 ', this running shaft 33 ' is provided with an axle sleeve 34 ', the flabellum 41 that this axle sleeve 34 ' can be used to interlocking wind-guiding fan unit 40 is fixed on the running shaft 33 ', and another group motor unit 30 ' can be fanned unit 40 to wind-guiding equally and turns whereby.
Seeing also shown in Figure 6ly, is the composite structure sectional view of guide fan device the 3rd preferred embodiment of model facility of the present invention, and the situation of setting up one group of jet pipe unit is described.The guide fan device of the model facility of the present invention's the 3rd preferred embodiment, has an assembly housing unit 20, one group of motor unit 30 and one group of wind-guiding fan unit 40, different with first embodiment is, have additional one group of jet pipe unit 50 in outer cover unit 20 rear end, this jet pipe unit 50 has a taper thimble 51 that is connected mutually with shell 21, these thimble 51 inside are by several rib 52 built on stilts long flow deflecting cones 53 of a length that are provided with, have one in this thimble 51 week and be the arc inner wall 54 of same curve shape with flow deflecting cone 53 peripheries, and rear end formation is provided with a jetburner 55, the high pressure draught that wind-guiding fan unit 40 is produced can be concentrated by jetburner 55 and spray, can promote integral power usefulness whereby, more particularly, flow deflecting cone 53 inside of present embodiment are provided with a bearing 531, this bearing 531 can stretch into fit for running shaft 33, so an end of this motor unit 30 is fixed on the accommodation tube 22, the other end then is set on the flow deflecting cone 53, two ends all provide motor unit 30 to have supporting strength, can make motor unit 30 obtain running effect very stably, provide quite good balance the model facility.
Seeing also shown in Figure 7ly, is the composite structure sectional view of guide fan device the 4th preferred embodiment of model facility of the present invention, and the situation of setting up one group of power unit is described.The guide fan device of the model facility of the present invention's the 4th preferred embodiment, has an assembly housing unit 20 equally, one group of motor unit 30, one group of wind-guiding fan unit 40 and one group of jet pipe unit 50, different with the 3rd embodiment is, 20 front end places have additional one group of power unit 60 at outer cover unit, this power unit 60 has another shell 61 that is connected mutually with this shell 21, one built on stilts another motor 62 that is arranged on another shell 61 bosom places, and one connect and be located at another wind-guiding fan 63 that can do to run up on another motor 62, another motor 62 is stretched backward and is provided with a running shaft 621, this running shaft 621 just stretches in outer cover unit 20 accommodation tubes 22 and makes fit, running shaft 621 inside are equipped with a hollow hole 622, electric wire 32 can be penetrated in the accommodation tube 64 that arrives the place ahead by hollow hole 622, another wind-guiding fan 63 is provided with another flabellum 631, this another flabellum 631 is little than the pitch (pitch) of this flabellum 41, blade is many, another motor 62 has high-revolving output characteristics, driving another flabellum 631 compresses air apace, and flabellum 41 pitch of wind-guiding fan unit 40 are big, blade is few, make motor unit 30 have the output characteristics of high torsion, can drive flabellum 41 discharges air at high speed backward, by this kind textural association, can further promote the usefulness of spraying power.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1. the guide fan device of model facility is characterized in that it comprises:
One assembly housing unit, have a shell and a built on stilts accommodation tube that is arranged on enclosure, this enclosure hollow forms and is provided with a ventilation chamber, this accommodation tube one side place is concaved with a holding space, another side place of accommodation tube is provided with an attachment face, is equipped with a wiring hole that passes to holding space thoroughly on the attachment face;
One group of motor unit, has a motor body that exposes to vent chamber, the rear end of motor body is fixedly installed on the attachment face of accommodation tube, the motor body rear end is equipped with one group of electric wire, electric wire directly feeds in the holding space via wiring hole, and the motor body front end is stretched and is provided with the running shaft that a work runs up; And
One group of wind-guiding fan unit has a flabellum that is fixedly installed on the running shaft.
2. the guide fan device of model facility as claimed in claim 1 is characterized in that being concaved with several perforation on the attachment face of wherein said outer cover unit, and a plurality of screws penetrate perforation by holding space motor body is fixed as interlocking.
3. the guide fan device of model facility as claimed in claim 1 is characterized in that wherein said motor body adopts the motor of external rotor pattern.
4. the guide fan device of model facility as claimed in claim 3 is characterized in that wherein said motor body one end face is provided with several bolt apertures, and this flabellum penetrates several screw interlockings in bolt apertures and be fixed on the motor body.
5. the guide fan device of model facility as claimed in claim 1 is characterized in that wherein said motor body adopts the motor of internal rotor pattern.
6. the guide fan device of model facility as claimed in claim 1, it is characterized in that it also includes one group of jet pipe unit, this jet pipe unit has a taper thimble that is connected mutually with shell, the inner built on stilts flow deflecting cone that is provided with of thimble, flow deflecting cone inside is provided with a bearing that stretches into fit for running shaft.
7. the guide fan device of model facility as claimed in claim 6, what it is characterized in that wherein said thimble has one interior week and is the arc inner wall of same curve shape with the flow deflecting cone periphery.
8. the guide fan device of model facility as claimed in claim 1, it is characterized in that it also includes one group of power unit, this power unit has another shell that is connected mutually with this shell, built on stilts another motor and that is arranged on another enclosure connects and is located at another wind-guiding fan of doing on another motor to run up.
9. the guide fan device of model facility as claimed in claim 8 is characterized in that described another motor is stretched to be provided with another root and to be linked in running shaft in the accommodation tube that another root interior of rotating shaft is provided with the hollow hole that a supply lines penetrates.
10. the guide fan device of model facility as claimed in claim 8 is characterized in that described another wind-guiding fan is provided with another flabellum, and the pitch of another flabellum and this flabellum differs from one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100950742A CN101571145B (en) | 2008-04-28 | 2008-04-28 | Wind guide fan device of model machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100950742A CN101571145B (en) | 2008-04-28 | 2008-04-28 | Wind guide fan device of model machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571145A CN101571145A (en) | 2009-11-04 |
| CN101571145B true CN101571145B (en) | 2011-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100950742A Expired - Fee Related CN101571145B (en) | 2008-04-28 | 2008-04-28 | Wind guide fan device of model machine |
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| Country | Link |
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| CN (1) | CN101571145B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298910A (en) * | 2014-05-28 | 2016-02-03 | 协禧电机股份有限公司 | Combined type fan wheel structure |
| CN105156225B (en) * | 2015-09-23 | 2017-03-22 | 海门韵田电气机械科技有限公司 | Three-level compressed-air ducted fan engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4123197A (en) * | 1977-02-04 | 1978-10-31 | Allware Agencies Limited | Fan with air directing grille |
| US4140433A (en) * | 1975-07-10 | 1979-02-20 | Eckel Oliver C | Wind turbine |
| EP0070578A2 (en) * | 1979-05-01 | 1983-01-26 | Brooklands Aerospace Group Plc | Ducted propeller |
| US4657483A (en) * | 1984-11-16 | 1987-04-14 | Bede James D | Shrouded household fan |
| CN2450418Y (en) * | 2000-09-30 | 2001-09-26 | 陈李铭 | Radiating device of motor |
-
2008
- 2008-04-28 CN CN2008100950742A patent/CN101571145B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140433A (en) * | 1975-07-10 | 1979-02-20 | Eckel Oliver C | Wind turbine |
| US4123197A (en) * | 1977-02-04 | 1978-10-31 | Allware Agencies Limited | Fan with air directing grille |
| EP0070578A2 (en) * | 1979-05-01 | 1983-01-26 | Brooklands Aerospace Group Plc | Ducted propeller |
| US4657483A (en) * | 1984-11-16 | 1987-04-14 | Bede James D | Shrouded household fan |
| CN2450418Y (en) * | 2000-09-30 | 2001-09-26 | 陈李铭 | Radiating device of motor |
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|---|---|
| CN101571145A (en) | 2009-11-04 |
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