CN203770171U - Fan with multiple air supply channels - Google Patents
Fan with multiple air supply channels Download PDFInfo
- Publication number
- CN203770171U CN203770171U CN201420148262.8U CN201420148262U CN203770171U CN 203770171 U CN203770171 U CN 203770171U CN 201420148262 U CN201420148262 U CN 201420148262U CN 203770171 U CN203770171 U CN 203770171U
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- China
- Prior art keywords
- impeller
- air
- blower fan
- casing
- supply passages
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a fan with multiple air supply channels. The fan comprises a fan body. The fan body comprises an impeller, a motor, a housing case, an air inlet pipeline and a frame, the motor provides power for the impeller, the impeller can be accommodated in the housing case, the air inlet pipeline is used for delivering air to the impeller, and the frame is used for being connected with relevant components. The air inlet pipeline comprises an air inlet end and an air supply unit, and an air supply cavity of the impeller is divided into two or more air supply channels by a partition pipe or a dividing pipe of the air supply unit. A driven ring of a driven device of the fan body is mounted on a front disc of the impeller, and a driven bearing is mounted at the end, which is positioned in the housing case, of the air inlet end, so that the stability can be guaranteed in high-speed rotation procedures after a blade drum of the impeller is extended. An auxiliary sleeve of an auxiliary support of the air supply unit is mounted on an auxiliary bearing, and the stability of the air supply unit can be guaranteed by the auxiliary bearing when the auxiliary bearing rotates at a high speed along with a transmission shaft of the impeller. The fan has the advantages of obvious energy conservation, high seismic performance and efficiency and easiness in production.
Description
Technical field
The utility model relates to a kind of blower fan, is especially a kind ofly provided with a plurality of air delivery ducts, can help to improve the centrifugal multiblade formula blower fan of pumping efficiency.
Technical background
Along with China's modernization construction process, the product that we apply the energy gets more and more, and we are also more and more to the demand of the energy, and then energy-saving and emission-reduction become the requisite means of modernization construction.
Take insulating product as example, in numerous products, have is much that application vacuum technique is produced, and along with extreme climate changes today more and more frequently, cold and sweltering heat will inevitably test people, thereby well behaved insulating product becomes minimizing reply in the optimal selection of these weather.No matter be the energy-conservation of building, household electrical appliances or alternate manner, under the good prerequisite of guaranteed performance, can play sizable application again, its cost is crucial, and an important step of cost is exactly the energy cost in production process.
The thermal insulation property of vacuum goods is one of products best in current insulating product, now not widely applying vacuum product to improve insulating efficiency has the efficiency that a key factor is existing vacuum pumping system too low, the energy cost expending is too large, and the cost price of production vacuum goods cannot be declined.The key that causes this problem is that the vacuum pump of vacuum pumping system or the efficiency of centrifugal fan are too low.
And the length that the relatively low key reason of the efficiency of centrifugal fan is the impeller of prior art centrifugal fan is limited to, the impeller of the centrifugal fan of existing market is so that the hub disk of impeller is arranged on motor shaft, blade and the shroud of impeller are unsettled, the axial admission cavity of impeller only has the mode of to make, if it causes lengthening in the situation of impeller, in High Rotation Speed process, its blade can not impose on the air in impeller by the kinetic energy above by it in best mode, thereby efficiency is low, energy consumption is high.
In sum, the centrifugal fan efficiency of prior art is low, the main cause Shi Qi design limitation that energy consumption is high.
Summary of the invention
For putting forward the efficiency of centrifugal fan, the utility model provides a kind of blower fan that contains a plurality of air-supply passages, in the situation that not increasing power of motor, improves the efficiency of blower fan to lengthen the mode of impeller.
The utility model improves fan efficiency by following technological means:
A kind of blower fan that contains a plurality of air-supply passages of the present utility model, comprises blower fan body, and described blower fan body comprises impeller, with the motor of power is provided to impeller, and casing, and for carry the admission line of air to impeller, and for the framework of join dependency parts.
Described impeller comprises transmission shaft, shroud and hub disk, and be arranged on the vane drum between shroud and hub disk, with by the columniform cavity of supplying gas forming between shroud, hub disk and vane drum three, described hub disk is arranged on transmission shaft and with it and rotates, and described vane drum is comprised of a plurality of blades.
Described motor is fixed on framework, and the axle of described motor is connected with transmission shaft by coupling;
Described casing is used for holding impeller, on described casing, is provided with air outlet, and described air outlet is arranged on the radial direction of impeller, and described casing is arranged on framework;
Described admission line comprises inlet end and blowing unit, suction port casing that described inlet end is arranged on the cavity of supplying gas of impeller by fixed block connect, described fixing frame is fixed on framework, described blowing unit is arranged in the cavity of supplying gas, described blowing unit comprises isolated tube, one end of the tube wall of described isolated tube is connected with the tube wall of the inlet end of admission line by support frame, described isolated tube will blow cavity isolation become two isolation ventilation flues.The described isolated tube cavity isolation of blowing becomes two independently air-supply passages, contributes to each position that flows to impeller by the air equilibrium of admission line, to improve the efficiency of impeller in the situation that the vane drum of impeller is lengthened out.
Further, described blower fan body also comprises driven device, described driven device comprise be connected with the shroud of impeller from moving-coil, and the driven bearing of the inlet end that is arranged on admission line one end in casing, is describedly connected with driven bearing from moving-coil and is consistent with the axle center of impeller.Described driven device is for helping the hub disk maintenance impeller of impeller in the stability of the process of high speed rotating in the situation that increase the vane drum length of impeller.
Further, in described isolation ventilation flue, be provided with a minute pipe cutting, the tube wall of the tube wall of described minute pipe cutting by the isolated tube of connecting framework A and place isolation ventilation flue is connected and place isolated to ventilation flue and be divided into two and cut apart ventilation flue.If need, can also further be divided into more ventilation flue by cutting apart ventilation flue.Described minute pipe cutting helps the isolated tube cavity isolation of blowing to become a plurality of independently air-supply passages, contributes to each position that flows to vane drum by the air equilibrium of admission line, to improve the efficiency of impeller in the situation that the vane drum of impeller is lengthened out.
Further, described blowing unit also comprises auxiliary stand, described auxiliary stand comprises support end and connected auxiliary sleeve, described support end is connected with the tube wall of isolated tube or minute pipe cutting by connecting framework B, described auxiliary sleeve is connected with auxiliary bearing, and the inner ring of described auxiliary bearing or outer ring are connected with the transmission shaft of impeller and are consistent with the axle center of impeller.The outer ring of described auxiliary bearing or inner ring are in transmission shaft rotation process, and supporting & stablizing is carried out by the auxiliary sleeve to fixing in its inner ring or outer ring, to increase the stability of blowing unit in impeller high speed rotating process.
Further, on the vane drum of described impeller, be provided with one or more enhancing cranses, described enhancing cranse is connected and keeps in one plane with the blade of vane drum periphery, with in the situation that increase the structural strength that the vane drum length of impeller increases vane drum, the vane drum requirement to rigidity intensity in high speed rotating process that has guaranteed to lengthen.The plane that described enhancing cranse is connected with the blade of vane drum periphery should be as far as possible vertical with the axis of impeller, to reduce the resistance of vane drum in rotation process, and then reduces energy consumption.
Further, the inlet end of described admission line and the binding site of casing are provided with seal ring, and described seal ring has good sealing, to guarantee that casing can not enter admission line air in addition, improves the efficiency that blower fan extracts admission line.
Further, described transmission shaft is connected with the axle of motor through casing, and the binding site of described transmission shaft and casing is provided with the bearing with sealability, to prevent that when not affecting transmission shaft rotation the air beyond casing from entering in casing from this.
Further, described motor is arranged in casing, and the space of mounted motor and the space of impeller are communicated with, and makes transmission shaft needn't pass casing, to reduce air, enters the possibility in casing from casing.
Further, described isolated tube is cylindrical pipe.
Further, described minute pipe cutting is cylindrical pipe.
Above-mentioned impeller is lengthened out to refer on the basis of the impeller of existing blower fan increases length.
Further, the blower fan that contains a plurality of independent air delivery ducts of the present utility model can also be for to subway station, and hole, ore deposit or other need the place of forced draught facility.
The beneficial effects of the utility model:
Centrifugal fan with respect to existing market, the impeller length of the blower fan that contains a plurality of air-supply passages of the present utility model can require to lengthen according to user, the in the situation that of same diameter and same rotational speed, the blower fan that impeller is lengthened out is because air-supply cavity is isolated into a plurality of independently air-supply passages and the more effective conveying air to each position equilibrium of its impeller, thereby the advantage can maximized performance impeller being lengthened out, in rotation process, by more point of action, by air-supply, the air in cavity is more effective radially throws, and then outwards discharges by air outlet.---in the situation that set air displacement is identical with impeller diameter, the impeller of lengthening can be by reaching energy-conservation object to the way of decelerating through motor; In the situation that power of motor is identical with rotating speed and impeller diameter, the impeller of lengthening can be discharged more air displacement, and then has improved the efficiency of the blower fan that contains a plurality of air-supply passages of the present utility model.Be connected to being arranged on driven bearing from moving-coil on the shroud of impeller, and driven bearing is arranged on the outer wall of tube wall of admission line, make driven device in the situation that not affecting admission line admission space, guarantee the impeller that lengthens can be in high speed rotating process loss of stability, impeller expends less energy can improve the efficiency that blower fan is higher, and provides base of design for artificer.At the enhancing cranse of the upper setting of vane drum, by coupling together between adjacent blade, increased the structural strength of blade cylinder barrel, strengthened the resistance to deformation intensity of impeller, prevented the impeller that lengthens can be in high speed rotating process because of centrifugal force distortion may.The auxiliary stand arranging between the tube wall of minute pipe cutting and transmission shaft has further been guaranteed the stability of blowing unit, makes blowing unit possess certain anti-seismic performance, for it, works reliable guarantee is provided in moving process.The Fan Energy-saving that contains a plurality of air-supply passages of the present utility model is obvious, good stability, and the guaranteed efficiency that improves centrifugal fan, it is simple in structure, is easy to produce, and application market is extensive.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described, the corresponding position of corresponding sign indication in figure, wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side schematic view of admission line one side of the present utility model.
Fig. 3 is the side perspective view of motor one side of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail:
A kind of blower fan that contains a plurality of air-supply passages of the present utility model, comprise blower fan body 1, described blower fan body 1 comprises impeller 6, with the motor 11 of power is provided to impeller 6, with for retraining the casing 7 of air, and for carrying the admission line of air to impeller 1, and be arranged on the air outlet 71 on casing 7; Described impeller 6 comprises transmission shaft 60, shroud 63 and hub disk 61, and be arranged on the vane drum 62 between shroud 63 and hub disk 61, with by the columniform cavity 50 of supplying gas forming between shroud 63, hub disk 61 and vane drum 62 threes, described hub disk 61 is arranged on transmission shaft 60 and with it and rotates, and described vane drum 62 is comprised of a plurality of blades; Described admission line comprises inlet end 3 and blowing unit 5, described inlet end 3 by fixed block 4, be arranged on impeller 6 the cavity 50 of supplying gas suction port and be connected with casing 7 with framework 2, described blowing unit 5 is arranged in the cavity 50 of supplying gas, described blowing unit 5 comprises isolated tube 51, one end of the tube wall of described isolated tube 51 is connected with the tube wall of the inlet end 3 of admission line by support frame 52, and described isolated tube 51 is isolated into two isolation ventilation flues 53 by air-supply cavity 50; Described transmission shaft 60 is connected by coupling with the axle of motor 11; Described air outlet 71 is arranged on the casing 7 of radial direction of impeller 6; Described casing 7 is arranged on framework 2.Described isolated tube 51 is isolated into two independently air-supply passages 53 by air-supply cavity 50, in the situation that being lengthened out, the vane drum 62 of impeller 6 contributes to each position that flows to vane drum 62 by the air equilibrium of admission line, to improve the efficiency of blower fan body 1.For guaranteeing the connective stability of motor 11 and impeller diameter, bearing is installed on transmission shaft, described bearing is fixed on fixed support by bearing position 12, and described fixed support is connected with framework 2.Described casing is except air outlet 71 and admission line, and other position has good sealing.
Improvement as technique scheme, described blower fan body 1 also comprises driven device, described driven device comprise be connected with the shroud 63 of impeller 6 from moving-coil 81, with the driven bearing 8 of the inlet end 3 that is arranged on admission line one end in casing 7, describedly from moving-coil 81, be connected with driven bearing 8 and be consistent with the axle center of impeller 6.Described driven device is for helping the hub disk 61 of impeller 6 to keep impeller 6 in the stability of the process of high speed rotating in the situation that increase vane drum 62 length of impeller.
Improvement as technique scheme, in described isolation ventilation flue 53, be provided with minute pipe cutting 54, the tube wall of the tube wall 54 of described minute pipe cutting by the isolated tube 51 of connecting framework 55 and place isolation ventilation flue 53 is connected and place isolated to ventilation flue 63 and be divided into two and cut apart ventilation flue 56.If need, can also further be divided into more ventilation flue by cutting apart ventilation flue 56.Within described minute, pipe cutting 54 helps isolated tube 51 that air-supply cavity 50 is isolated into a plurality of independently air-supply passages, in the situation that being lengthened out, the vane drum 62 of impeller 6 contributes to by further balanced each position that flows to vane drum 62 of the air of admission line, to improve the efficiency of blower fan body 1.
Improvement as technique scheme, described blowing unit 5 also comprises auxiliary stand 58, described auxiliary stand 58 comprises support end 65 and connected auxiliary sleeve 66, described support end 65 is connected with the tube wall of isolated tube 51 or minute pipe cutting 54 by connecting framework 57, described auxiliary sleeve 66 is connected with auxiliary bearing 64, and the inner ring of described auxiliary bearing 64 or outer ring are connected with the transmission shaft 60 of impeller 6 and are consistent with the axle center of impeller 6.The outer ring of described auxiliary bearing 64 or inner ring are in transmission shaft rotation process, and supporting & stablizing is carried out by the auxiliary sleeve to fixing 66 in its inner ring or outer ring, to increase the stability of blowing unit 5 in impeller 6 high speed rotating processes.
Improvement as technique scheme, on the vane drum 62 of described impeller 6, being provided with one or more enhancing cranse 68(does not show), described enhancing cranse 68 is connected and keeps in one plane with the blade of vane drum 62 peripheries, increasing the structural strength of vane drum 62 in the situation that increasing vane drum 62 length, vane drum 62 requirement to rigidity intensity in high speed rotating process that has guaranteed to lengthen.The plane that described enhancing cranse 68 is connected with the blade of vane drum 62 peripheries should be as far as possible vertical with the axis of impeller 6, to reduce the resistance of impeller 6 in rotation process, and then reduces energy consumption.
Improvement as technique scheme; the inlet end 3 of described admission line is provided with seal ring 9 with the binding site of casing 7; described seal ring 9 has good sealing, to guarantee that casing 7 can not enter admission line air in addition, improves the efficiency of blower fan ontology extraction admission line.
Improvement as technique scheme, transmission shaft 60 is connected with the axle of motor 11 through casing 7, the binding site of described transmission shaft 60 and casing 7 is provided with the bearing with sealability, to prevent that the air beyond casing 7 from entering in casing 7 from this when not affecting transmission shaft 60 rotations.
As the improvement of technique scheme, described motor 11 is arranged in casing 7, and the space of mounted motor 11 is communicated with the space of impeller 6, makes transmission shaft 60 needn't pass casing 7, to reduce air, enters the possibility in casing 7 from casing 7.
As the improvement of technique scheme, described isolated tube 51 is cylindrical pipe, more uniformly the air of admission line is flowed to each position of vane drum 62.
As the improvement of technique scheme, within described minute, pipe cutting 54 is cylindrical pipe, rolls each position of 62 more uniformly the air of admission line is flowed to blade.
Above-mentioned impeller is lengthened out to refer on the basis of the impeller of existing blower fan increases length.
When the blower fan that contains a plurality of air-supply passages of the present utility model is applied in vacuum pumping system, the inlet end of admission line 3 is connected with the chamber of bleeding, the air outlet of blower fan body 1 71 is connected with exhaust duct and at exhaust duct, anti-reflux device is set, described anti-reflux device flows in outside air is from this device position to casing for preventing.
In the time of need to bleeding, starting electrical machinery 11, the hub disk 61 of transmission shaft 60 impeller 6 in electric machine rotation process being connected with the axle of motor 11 rotates, hub disk 61 will drive vane drum 62 to rotate, in rotation process, the blowing unit 5 being connected with the tube wall of the inlet end 3 of admission line will be transported to vane drum 62 from shroud 63 to each position hub disk 61 uniformly the air in admission line, and then the maximized application of motor 11 of the blade that makes vane drum 62 passes to their kinetic energy, the blade of vane drum 62 radially throws the air of position to periphery, at this moment the air pressure of the position beyond the interior impeller of casing 7 will increase, and then the other end exhaust from anti-reflux device to outlet pipe.
In process at impeller 6 with motor 11 high speed rotating, the driven bearing 8 of driven device is in the situation that the very little energy consumption of loss is guaranteed the connected stability from moving-coil 81, and then increased and the anti-seismic performance of the impeller 6 being connected from moving-coil 81 high speed rotating process.
In process at impeller 6 with motor 11 high speed rotating, the auxiliary sleeve 66 of the auxiliary stand 58 being connected with the tube wall that divides pipe cutting 54 of blowing unit 5 is on the effect basis of auxiliary bearing 64, in the situation that not affecting impeller 6 rotation, guaranteed the anti-seismic performance of blowing unit in blower fan body working procedure.
Blower fan body of the present utility model is after being provided with driven device and auxiliary stand, for the air inlet cavity of the impeller that contains a plurality of independent air-feeding passages provides reliable brace foundation, and then make the practical application of the blower fan that contains a plurality of air-supply passages of the present utility model that assurance is provided.
Further, the blower fan that contains a plurality of independent air delivery ducts of the present utility model can also be for to subway station, and hole, ore deposit or other need the place of forced draught facility.
The fan efficiency that contains a plurality of air-supply passages of the present utility model is high, and shock resistance is strong, simple in structure, practical, and can large-scale production.
Finally it should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the subject area of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a blower fan that contains a plurality of air-supply passages, comprise blower fan body (1), described blower fan body (1) comprises impeller (6), with the motor (11) of power is provided to impeller (6), and casing (7), and for carry the admission line of air to impeller (6), and for the framework (2) of join dependency parts, it is characterized in that:
Described impeller (6) comprises transmission shaft (60), shroud (63) and hub disk (61), and be arranged on the vane drum (62) between shroud (63) and hub disk (61), with by the columniform cavity of supplying gas (50) forming between shroud (63), hub disk (61) and vane drum (62) three, described hub disk (61) is arranged on transmission shaft (60) and above and with it rotates, and described vane drum (62) is comprised of a plurality of blades;
It is upper that described motor (11) is fixed on framework (2), and the axle of described motor (11) is connected with transmission shaft (60) by coupling;
Described casing (7), for holding impeller (6), is provided with air outlet (71) on described casing (7), described air outlet (71) are arranged on the radial direction of impeller (6), and described casing (7) is arranged on framework (2);
Described admission line comprises inlet end (3) and blowing unit (5), described inlet end (3) is arranged on the cavity of supplying gas (50) of impeller (6) suction port incorporating mill shell (7) by fixed block (4) connects, described fixing frame (4) is fixed on framework (2), described blowing unit (5) is arranged in the cavity of supplying gas (50), described blowing unit (5) comprises isolated tube (51), one end of described isolated tube (51) is connected with the tube wall of the inlet end (3) of admission line by support frame (52), the tube wall of described isolated tube (51) will blow cavity (50) be isolated into two isolation ventilation flues (53).
2. a kind of blower fan that contains a plurality of air-supply passages according to claim 1, it is characterized in that: described blower fan body (1) also comprises driven device, described driven device comprise that the shroud (63) that is connected with vane drum (62) connects from moving-coil (81), with the driven bearing (8) of the inlet end (3) that is arranged on admission line one end in casing (7), describedly from moving-coil (81), be connected with driven bearing (8) and be consistent with the axle center of impeller (6).
3. a kind of blower fan that contains a plurality of air-supply passages according to claim 1, it is characterized in that: in described isolation ventilation flue (53), be provided with a minute pipe cutting (54), described minute pipe cutting (54) the tube wall of tube wall by the isolated tube (51) of connecting framework (55) and place isolation ventilation flue (53) be connected and place isolated to ventilation flue (63) and be divided into two and cut apart ventilation flue (56).
4. a kind of blower fan that contains a plurality of air-supply passages according to claim 1, it is characterized in that: described blowing unit (5) also comprises auxiliary stand (58), described auxiliary stand (58) comprises support end (65) and connected auxiliary sleeve (66), described support end (65) is connected with the tube wall of isolated tube (51) or minute pipe cutting (54) by connecting framework (57), described auxiliary sleeve (66) is connected with auxiliary bearing (64), the inner ring of described auxiliary bearing (64) or outer ring are connected with the transmission shaft (60) of impeller (6) and are consistent with the axle center of impeller (6).
5. a kind of blower fan that contains a plurality of air-supply passages according to claim 2, it is characterized in that: on described vane drum (62), be provided with one or more enhancing cranses (68), described enhancing cranse (68) is connected and keeps in one plane with the blade of vane drum (62) periphery.
6. a kind of blower fan that contains a plurality of air-supply passages according to claim 2, is characterized in that: the binding site of described admission line and casing (7) is provided with seal ring (9).
7. a kind of blower fan that contains a plurality of air-supply passages according to claim 4, it is characterized in that: described transmission shaft (60) is connected with the axle of motor (11) through casing (7), and the binding site of described transmission shaft (60) and casing (7) is provided with the bearing with sealability.
8. a kind of blower fan that contains a plurality of air-supply passages according to claim 7, is characterized in that: described motor (11) is arranged in casing (7).
9. a kind of blower fan that contains a plurality of air-supply passages according to claim 3, is characterized in that: described isolated tube (51) is cylindrical pipe.
10. a kind of blower fan that contains a plurality of air-supply passages according to claim 4, is characterized in that: described minute pipe cutting (54) be cylindrical pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148262.8U CN203770171U (en) | 2013-11-11 | 2014-03-28 | Fan with multiple air supply channels |
| PCT/CN2014/090766 WO2015067218A1 (en) | 2013-11-11 | 2014-11-10 | Fan with multiple air supply channels |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310556886.3 | 2013-11-11 | ||
| CN201310556886 | 2013-11-11 | ||
| CN201420148262.8U CN203770171U (en) | 2013-11-11 | 2014-03-28 | Fan with multiple air supply channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770171U true CN203770171U (en) | 2014-08-13 |
Family
ID=51237713
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120546.0A Pending CN103967815A (en) | 2013-11-11 | 2014-03-28 | Draught fan comprising multiple air supply channels |
| CN201420148262.8U Expired - Fee Related CN203770171U (en) | 2013-11-11 | 2014-03-28 | Fan with multiple air supply channels |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120546.0A Pending CN103967815A (en) | 2013-11-11 | 2014-03-28 | Draught fan comprising multiple air supply channels |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103967815A (en) |
| WO (1) | WO2015067218A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087303A (en) * | 2017-12-21 | 2018-05-29 | 南京航空航天大学 | Injection type centrifugal blower |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB137274A (en) * | 1918-12-30 | 1920-12-09 | Emile Harter | Improvements in centrifugal fans |
| US2135053A (en) * | 1937-08-24 | 1938-11-01 | John A Rockwell | Centrifugal fan |
| US2169232A (en) * | 1939-04-08 | 1939-08-15 | Westinghouse Electric & Mfg Co | Blower apparatus |
| US2287822A (en) * | 1940-07-26 | 1942-06-30 | J H Everest | Blower |
| US5525036A (en) * | 1991-11-29 | 1996-06-11 | Goldstar Co., Ltd. | Suction structure of a sirocco fan housing |
| FR2788086B1 (en) * | 1998-12-30 | 2001-02-09 | Valeo Climatisation | HEATING, VENTILATION AND / OR AIR CONDITIONING DEVICE COMPRISING A SUCTION PULSE |
| US8231334B2 (en) * | 2009-09-14 | 2012-07-31 | Trane International Inc. | Secondary inlet cone for a plenum fan |
-
2014
- 2014-03-28 CN CN201410120546.0A patent/CN103967815A/en active Pending
- 2014-03-28 CN CN201420148262.8U patent/CN203770171U/en not_active Expired - Fee Related
- 2014-11-10 WO PCT/CN2014/090766 patent/WO2015067218A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015067218A1 (en) | 2015-05-14 |
| CN103967815A (en) | 2014-08-06 |
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