CN205064381U - Diffuser, air current production device and dust catcher, hand drier, hair -dryer - Google Patents
Diffuser, air current production device and dust catcher, hand drier, hair -dryer Download PDFInfo
- Publication number
- CN205064381U CN205064381U CN201520639411.5U CN201520639411U CN205064381U CN 205064381 U CN205064381 U CN 205064381U CN 201520639411 U CN201520639411 U CN 201520639411U CN 205064381 U CN205064381 U CN 205064381U
- Authority
- CN
- China
- Prior art keywords
- air flow
- line part
- diffuser
- diffusion admittance
- producing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a diffuser, air current production device and dust catcher, hand drier, hair -dryer, the air current produces the device and includes the motor, the centrifugation impeller, install in in the pivot of motor, it is rotatory by motor drive, the centrifugation impeller includes a plurality of blades, forms the wind channel between the blade, and diffuser, the diffuser encircles the impeller setting, including a plurality of diffusion vanes, forms the diffusion admittance between the diffusion vane. In the fluid area that the top of the terminal of a diffusion vane and another adjacent diffusion vane formed, the diffusion admittance bottom includes the straight -line portion that is located the bowl line part of anterior segment and is located the back end rather than the intersecting line of circumference section, the bowl line part is followed the entry end of diffusion admittance or is close to the entry end and begins, down crooked extension backward, the straight -line portion is connected the bowl line part and is extended to the exit end of diffusion admittance. The utility model provides an air current produces the device, and the design of its diffusion admittance has promoted the work efficiency of air current production device.
Description
[technical field]
The utility model relates to a kind of air flow-producing device, more specifically, relates to the diffuser of a kind of high efficiency air flow-producing device and interior use thereof, and applies vacuum cleaner, hand-drying device, the blower of this air flow-producing device.
[background technique]
Air flow-producing device for need as blower, hand dryer, vacuum cleaner etc. rely on distinguished and admirable come work machine be very important parts, the height of its efficiency also directly affects the height of these machine operation efficiency.Therefore, for promoting the working efficiency of these machines, how research promotes one piece that the efficiency of air flow-producing device become industry very important.
Air flow-producing device generally comprises motor, impeller and diffuser, diffuser wound impeller, and impeller is driven by motor and rotates, and air-flow enters impeller again through diffuser, discharges finally by by the opening on electric machine casing.
The structure of diffuser is very important, because it affects the efficiency of air flow-producing device.The electric power that high efficiency diffuser can improve air flow rate or consume under reducing same gas flow.Therefore, the efficiency providing high efficiency diffuser also to promote air flow-producing device whereby seems necessary.
[model utility content]
The purpose of this utility model is the working efficiency promoting air flow-producing device.For this reason, the utility model provides a kind of air flow-producing device, comprising: motor; Centrifugal impeller, is installed in the rotating shaft of described motor, and driven by described motor and rotate, described centrifugal impeller comprises multiple blade, forms air channel between described blade; And diffuser, described diffuser wound impeller is arranged, and comprises multiple diffuser vane, forms diffusion admittance between described diffuser vane.In the fluid mass that the top of the end of diffuser vane diffuser vane adjacent with another is formed, bottom described diffusion admittance, the intersection of section circumferential with it comprises the bowl line part being positioned at leading portion and the straight section being positioned at back segment, described bowl line part is from the entry end of described diffusion admittance or near entry end, down bending extension backward, described straight section connects described bowl line part and extends to the outlet end of described diffusion admittance
As a kind of preferred version, the circumferential section bottom described diffusion admittance is an aerofoil profile.
As a kind of preferred version, described straight section and bowl line part tangent in the two connecting part.
As a kind of preferred version, bottom described diffusion admittance, comprise the curved bottom portion being positioned at leading portion and the planar base being positioned at back segment.
As a kind of preferred version, described bowl line part action is c, 0.14 to 0.16 times of described bowl line part chord length to be b, c be b, described bowl line part away from straight section one end and one perpendicular to described diffuser medial axis plane between angle be 20 to 30 to spend.
As a kind of preferred version, described straight section length is d, 0.2 to 0.3 times of described bowl line part chord length to be b, d be b.
As a kind of preferred version, 0.14 to 0.16 times of described bowl line part action to be c, c be b.Described bowl line part has a tortuosity biggest place, described tortuosity biggest place is positioned at the subpoint on the string of bowl line part to 0.4 to 0.6 times of the distance of a wherein end points of bowl line part to be a, a be b.
As a kind of preferred version, the angle β between described straight section and described plane is 90 degree.
As a kind of preferred version, between the entry end of described diffusion admittance and described centrifugal impeller air channel, leave gap.
As a kind of preferred version, the external diameter of described centrifugal impeller 14 is D1,0.85 to 0.98 times of the root place diameter of a circle that described diffuser vane is positioned at diffusion admittance entry end to be D2, D1 be D2.
As a kind of preferred version, described impeller comprises the front shroud and back shroud that separate predeterminable range, and described blades installation, between described front shroud and back shroud, described front shroud offers opening, for the entrance in described centrifugal impeller air channel, described centrifugal impeller periphery is ducting outlet.
As a kind of preferred version, described diffuser comprises shell and as the dividing plate in shell, dividing plate is formed described multiple diffuser vane.
As a kind of preferred version, described dividing plate excircle place is formed and thickens platform, and described diffuser vane is connected with shell along crooked route across the outer rim thickening platform described in this and arrive described diffuser.
As a kind of preferred version, described dividing plate intermediate portion forms recess, and described centrifugal impeller is placed in described recess.
As a kind of preferred version, the outlet end of described diffusion admittance is adjacent with shell and and have gap shell through described dividing plate.
As a kind of preferred version, also comprise a lid, described lid has an opening, and described opening is the entrance that air-flow enters described air flow-producing device.
As a kind of preferred version, described opening is that outside bore is greater than the horn-like of inner side bore, and the volume of this opening is for diameter and 1 to 1.2 times of the cylindrical volume contour with this open height with the inner side bore of this opening.
Alternatively, described opening is cylindric.
A kind of diffuser, be applied in an air flow-producing device, comprise multiple diffuser vane, diffusion admittance is formed between described diffuser vane, bottom described diffusion admittance, the intersection of section circumferential with it comprises the bowl line part being positioned at leading portion and the straight section being positioned at back segment, described bowl line part is from the entry end of described diffusion admittance, and down bending extension backward, described straight section connects described bowl line part and extends to the outlet end of described diffusion admittance.
As a kind of preferred version, the circumferential section bottom described diffusion admittance is an aerofoil profile.
As a kind of preferred version, described straight section and curved portion tangent in the two connecting part.
As a kind of preferred version, bottom described diffusion admittance, comprise the curved bottom portion being positioned at leading portion and the planar base being positioned at back segment.
As a kind of preferred version, described bowl line part chord length is b, 0.14 to 0.16 times of described bowl line part action to be c, c be b, described bowl line part away from straight section one end and one perpendicular to described diffuser medial axis plane between angle α 20 to 30 to spend.
As a kind of preferred version, 0.2 to 0.3 times of described straight section length to be d, d be b.
As a kind of preferred version, described bowl line part has a tortuosity biggest place, described tortuosity biggest place is positioned at the subpoint on the string of bowl line part to 0.4 to 0.6 times of the distance of a wherein end points of bowl line part to be a, a be b.
As a kind of preferred version, the angle between described straight section and described plane is 90 degree.
The utility model also provides a kind of hand dryer, vacuum cleaner, the blower that use said flow generation device.
Implement the utility model, the working efficiency of air flow-producing device can be promoted.
[accompanying drawing explanation]
Below in conjunction with Figure of description and embodiment, the utility model is described in further detail.
Fig. 1 is the schematic perspective view of the air flow-producing device provided in the utility model one mode of execution;
Fig. 2 is the generalized section of air flow-producing device shown in Fig. 1 along II-II line;
Fig. 3 is the schematic perspective view of the centrifugal impeller that air flow-producing device shown in Fig. 1 uses;
Fig. 4 is the schematic perspective view of another angle of centrifugal impeller shown in Fig. 3;
Fig. 5 is the schematic perspective view of the diffuser that air flow-producing device shown in Fig. 1 uses;
Fig. 6 is the schematic perspective view of another angle of diffuser shown in Fig. 5;
Fig. 7 is the schematic diagram of setting forth diffuser proportionate relationship shown in centrifugal impeller and Fig. 4 shown in Fig. 3;
Fig. 8 is that diffuser shown in Fig. 4 excises its cylindrical case, manifests the schematic diagram of its diffusion admittance;
Fig. 9 is the diffusion admittance bottom sectional of diffuser shown in Fig. 8 and sectional parameter schematic diagram;
Figure 10 is the schematic perspective view of the lid that air flow-producing device shown in Fig. 1 uses;
Figure 11 is the generalized section of lid shown in Figure 10 along XI-XI line;
Figure 12 is the generalized section of another kind of replaceable cover body on air flow-producing device shown in Fig. 1.
Figure 13 is the schematic diagram that air flow-producing device shown in Fig. 1 is applied to a hand dryer.
Figure 14 is the schematic diagram that air flow-producing device shown in Fig. 1 is applied to a vacuum cleaner.
Figure 15 is the schematic diagram that air flow-producing device shown in Fig. 1 is applied to a blower.
[embodiment]
With reference to figure 1 and Fig. 2, the air flow-producing device 10 provided in the utility model one mode of execution, comprises lid 11, centrifugal impeller 12, diffuser 13 and motor 14.Centrifugal impeller 12 is placed in diffuser 13, and diffuser 13 is around centrifugal impeller 12.Centrifugal impeller 12 is installed in the rotating shaft of motor 14, by motor 14 driven rotary.Diffuser 13 is installed on motor housing 141 by screw 134.Lid 11 is installed on the top of centrifugal impeller 12, diffuser 13 and motor 14.Opening 111 (see Figure 10 and Figure 11) on lid 11 constitutes the gas access of air flow-producing device 10.The gas of coming in from lid 11 upper shed 111, through centrifugal impeller 12 and diffuser 13, is finally discharged from the opening motor housing 141.
With reference to figure 3 and Fig. 4, centrifugal impeller 12 comprises the front shroud 121 and back shroud 122 that separate predeterminable range, also comprises the some blades 123 be installed between front shroud 121 and back shroud 122.Air channel 124 is formed between adjacent blades 123.The neutral position of front shroud 121 offers opening 1211, the opening 111 on the corresponding lid 11 of this opening 1211, and be air channel 124 entrance of centrifugal impeller 12, centrifugal impeller 12 periphery is air channel 124 and exports.The center position of back shroud 122 has offered through hole 1221, and the rotating shaft of through hole 1221 power supply machine 14 is passed to install centrifugal impeller 12 in the rotating shaft of motor 14, and by motor 14 driven rotary.
With reference to figure 5 and Fig. 6, diffuser 13 comprises shell (herein for cylindrical case) 131, be placed in dividing plate 132 in cylindrical case 131 and some diffuser vanes 133.The rotating shaft that dividing plate 132 has through hole 1321 power supply machine 14 is passed, dividing plate 132 separately also has some through holes 1322, pass for screw 134 so that diffuser 13 is installed on motor housing 141, now, cylindrical case 131 is looped around the upper part periphery of motor 14, and has gap between the two to form air-flow path.Dividing plate 132 excircle place is stepped part, thus formation thickens platform 1323 at the edge of dividing plate 132, and forms recess in the middle of dividing plate.Diffuser vane 133 thickens platform 1323 upwards extend from this, thickens the outer rim that platform 1323 arrives diffuser 13 along crooked route and is connected with cylindrical case 131 across this.The diffusion admittance 135 of air-flow is formed between diffuser vane 133.Centrifugal impeller 12 is placed in recess, makes diffuser vane 133 be positioned at the periphery of centrifugal impeller 12, and the entry end of diffusion admittance 135 is adjacent with the outlet in centrifugal impeller 12 air channel 124, leaves gap therebetween.
With reference to figure 7, the external diameter of centrifugal impeller 14 represents with D1, and the root place diameter of a circle that diffuser vane 133 is positioned at diffusion admittance 134 entry end represents with D2.Wherein, centrifugal impeller 14 outer diameter D 1 is 0.85 to 0.98 times of diffuser vane 133 root place circular diameter D2, thus, gap is defined between diffusion admittance 135 entry end and centrifugal impeller 12 air channel 124 export, because of the existence in this gap, reduce noise when air flow-producing device 10 works, and can not affect compared with limits air-flow to enter diffuser 13 efficiency from centrifugal impeller 12.
With reference to figure 8, in one embodiment, the bottom of diffusion admittance 135 from entry end to outlet end, is made up of one section of curved bottom portion and one section of planar base.Curved bottom portion is from the entry end of diffusion admittance 135, bending backward toward downward-extension, that is curved bottom portion is the curved surface that has a down dip with certain tortuosity.Planar base connects curved bottom portion, and extends to the outlet end of diffusion admittance 135.Diffusion admittance 135 entry end is adjacent with centrifugal impeller 12, outlet end through dividing plate 132 adjacent with cylindrical case 131 and and cylindrical case 131, there is gap, so that the air-flow path of air-flow thus through entering between cylindrical case 131 and motor housing 141, and finally discharged by the opening on motor housing 141.In other embodiments, above-mentioned planar base also can by another section of curved bottom portion as cylinder, the conical surface etc. replace.
The design reference of diffusion admittance 135 principle of aerodynamics Airfoil Design, is beneficial to the efficiency of lift gas circulation.In one embodiment, the circumferential section of the bottom of described diffusion admittance 135 is an aerofoil profile.
With reference to figure 8 and Fig. 9, in the fluid mass that the top of the end of diffuser vane diffuser vane adjacent with another is formed, face 1 is defined as by the axial cross section of radial direction arbitrary in this fluid mass, cross diffusion admittance and the parallel impeller shaft of vertical surface 1 to cross section be defined as the circumferential section 2 of diffusion admittance 135, represent with line L1 with the intersection of circumferential section 2 bottom diffusion admittance 135.In one embodiment, the bottom of diffusion admittance 135 is the simple center line type design with reference to 5 figure place family of aerofoil sections, and its leading portion is cubic curve part, and back segment is straight section.In other embodiments, the bottom leading portion of diffusion admittance 135 can be other high order curve parts, and back segment is straight section.
Line L1 comprises curved portion AB (calling bowl line part AB in the following text) arcuately and part (calling straight section BD in the following text) linearly.The A point of bowl line part AB near or be positioned at the entry end of diffusion admittance 135, the D point of straight section BD is close or be positioned at the outlet end of diffusion admittance 135.Straight section BD and bowl line part AB is tangent at B point place, and straight section BD is positioned at bowl line part AB and crosses on the tangent line of B point.Straight section BD length is the chord length of d, bowl line part AB, and the crow flight distance namely from A to B is b.In present embodiment, d/b is 0.2 to 0.3.The action of bowl line part AB (namely in Fig. 9 on bowl line part AB C point to the perpendicular distance of straightway AB) is c.In present embodiment, c/b is 0.14 to 0.16.C point place is also the maximum flexion place of line L.The subpoint of C point on the string of bowl line part AB is a to the distance of A point.In present embodiment, a/b is between 0.4 to 0.6.Plane 3 (see Fig. 9) is vertical with diffuser 13 medial axis and crosses the radial plane of A point.The angle of tangent line and plane 3 that line L1 crosses A point is α, and in the present embodiment, α is 20 to 30 degree, and namely the angle of the tangent plane of the curved bottom portion of diffusion admittance 135 in the one end away from planar base and plane 3 is 20 to 30 to spend.The angle of straight section BD and plane 3 is β, and in the present embodiment, β is preferably 90 degree, and namely the planar base of diffusion admittance 135 is parallel to diffuser 13 medial axis.
With reference to figures 10 to Figure 12, lid 11 is stepped, and top is positioned at wherein heart position, has opening 111 at top.In one embodiment, opening 111 cylindrically.In another embodiment, lid 11 top has opening 111 ', and preferably, opening 111 ' is roughly in horn-like, and the bore outside it is greater than the bore of inner side.Compare the opening 111 and 111 ' in above-mentioned two kinds of mode of executions, when within it bore is identical, if lid 11 forms via injection molding, consider that opening 111 ' need have certain thickness to maintain its rigidity, then opening 111 ' and 111 volume ratio can be controlled in and be greater than 1 and be less than or equal between 1.2.If lid by other rigidity preferably material make, be such as formed from steel, then opening 111 ' and 111 volume ratio can be enlarged to more than 1.2.That is, being designed to trumpet-shaped opening 111 ' is considering on material and processing and lid rigidity basis, larger volume can be had than being designed to cylindric opening 111, more air-flow in same time, can be allowed when air flow-producing device 10 works to enter air flow-producing device 10.
Figure 13 shows that a hand dryer 20, this hand dryer 20 comprises said flow generation device 10.In the present embodiment, other structures of this hand dryer 20 are existing structure, are therefore not described in detail in this.
Figure 14 shows that a vacuum cleaner 30, this vacuum cleaner 30 comprises said flow generation device 10.In the present embodiment, other structures of this vacuum cleaner 30 are existing structure, are therefore not described in detail in this.
Figure 15 shows that a blower 40, this blower 40 comprises said flow generation device 10.In the present embodiment, other structures of this blower 40 are existing structure, are therefore not described in detail in this.
For the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (29)
1. an air flow-producing device, comprising:
Motor, described motor comprises rotating shaft;
Centrifugal impeller, is installed in the rotating shaft of described motor, and driven by described motor and rotate, described centrifugal impeller comprises multiple blade, forms air channel between described blade; And
Diffuser, described diffuser wound impeller is arranged, and comprises multiple diffuser vane, forms diffusion admittance between described diffuser vane;
It is characterized in that, in the fluid mass that the top of the end of diffuser vane diffuser vane adjacent with another is formed, bottom described diffusion admittance, the intersection of section circumferential with it comprises the bowl line part being positioned at leading portion and the straight section being positioned at back segment, described bowl line part is from the entry end of described diffusion admittance or near entry end, down bending extension backward, described straight section connects described bowl line part and extends to the outlet end of described diffusion admittance.
2. air flow-producing device as claimed in claim 1, it is characterized in that, the circumferential section bottom described diffusion admittance is an aerofoil profile.
3. air flow-producing device as claimed in claim 1, is characterized in that, described straight section and bowl line part tangent in the two connecting part.
4. air flow-producing device as claimed in claim 1, is characterized in that, comprises the curved bottom portion being positioned at leading portion and the planar base being positioned at back segment bottom described diffusion admittance.
5. the air flow-producing device as described in any one of Claims 1-4, it is characterized in that, described bowl line part action is c, described bowl line part chord length is b, c is 0.14 to 0.16 times of b, described bowl line part away from straight section one end and one perpendicular to described diffuser medial axis plane between angle be 20 to 30 to spend.
6. air flow-producing device as claimed in claim 5, is characterized in that, 0.2 to 0.3 times of described straight section length to be d, d be b.
7. air flow-producing device as claimed in claim 5, it is characterized in that, described bowl line part has a tortuosity biggest place, described tortuosity biggest place is positioned at the subpoint on the string of bowl line part to 0.4 to 0.6 times of the distance of a wherein end points of bowl line part to be a, a be b.
8. air flow-producing device as claimed in claim 5, it is characterized in that, the angle between described straight section and described plane is 90 degree.
9. air flow-producing device as claimed in claim 1, is characterized in that, leave gap between the entry end of described diffusion admittance and described centrifugal impeller air channel.
10. air flow-producing device as claimed in claim 9, it is characterized in that, the external diameter of described centrifugal impeller 14 is D1,0.85 to 0.98 times of the root place diameter of a circle that described diffuser vane is positioned at diffusion admittance entry end to be D2, D1 be D2.
11. air flow-producing devices as claimed in claim 1, it is characterized in that, described impeller comprises the front shroud and back shroud that separate predeterminable range, described blades installation is between described front shroud and back shroud, described front shroud offers opening, for the entrance in described centrifugal impeller air channel, described centrifugal impeller periphery is ducting outlet.
12. air flow-producing devices as claimed in claim 1, it is characterized in that, described diffuser comprises shell and is connected to the dividing plate in shell, dividing plate is formed described multiple diffuser vane.
13. air flow-producing devices as claimed in claim 12, is characterized in that, described dividing plate excircle place is formed and thickens platform, and described diffuser vane thickens the outer rim that platform arrives described diffuser along crooked route be connected with shell across described.
14. air flow-producing devices as claimed in claim 13, is characterized in that, described dividing plate intermediate portion forms recess, and described centrifugal impeller is placed in described recess.
15. air flow-producing devices as claimed in claim 13, is characterized in that, the outlet end of described diffusion admittance is adjacent with shell and and have gap shell through described dividing plate.
16. air flow-producing devices as described in claim 1 or 11, it is characterized in that, also comprise a lid, described lid has an opening, and described opening is the entrance that air-flow enters described air flow-producing device.
17. air flow-producing devices as claimed in claim 16, it is characterized in that, described opening is that outside bore is greater than the horn-like of inner side bore, and the volume of this opening is for diameter and 1 to 1.2 times of the cylindrical volume contour with this open height with the inner side bore of this opening.
18. air flow-producing devices as claimed in claim 16, is characterized in that, described opening is cylindric.
19. 1 kinds of diffusers, be applied in an air flow-producing device, comprise multiple diffuser vane, diffusion admittance is formed between described diffuser vane, it is characterized in that, in the fluid mass that the top of the end of diffuser vane diffuser vane adjacent with another is formed, bottom described diffusion admittance, the intersection of section circumferential with it comprises the bowl line part being positioned at leading portion and the straight section being positioned at back segment, described curved portion is from the entry end of described diffusion admittance, down bending extension backward, described straight section connects described curved portion and extends to the outlet end of described diffusion admittance.
20. diffusers as claimed in claim 19, it is characterized in that, the circumferential section bottom described diffusion admittance is an aerofoil profile.
21. diffusers as claimed in claim 20, is characterized in that, described straight section and curved portion tangent in the two connecting part.
22. diffusers as claimed in claim 19, is characterized in that, comprise the curved bottom portion being positioned at leading portion and the planar base being positioned at back segment bottom described diffusion admittance.
23. diffusers as described in any one of claim 19-22, it is characterized in that, described bowl line part chord length is b, described bowl line part action is c, c is 0.14 to 0.16 times of b, described bowl line part away from straight section one end and one perpendicular to described diffuser medial axis plane between angle be 20 to 30 to spend.
24. diffusers as claimed in claim 23, is characterized in that, 0.2 to 0.3 times of described straight section length to be d, d be b.
25. diffusers as claimed in claim 23, it is characterized in that, described bowl line part has a tortuosity biggest place, described tortuosity biggest place is positioned at the subpoint on the string of bowl line part to 0.4 to 0.6 times of the distance of a wherein end points of bowl line part to be a, a be b.
26. diffusers as claimed in claim 23, it is characterized in that, the angle between described straight section and described plane is 90 degree.
27. 1 kinds of hand dryers, is characterized in that, described hand dryer comprises the air flow-producing device as described in any one of claim 1-18.
28. 1 kinds of vacuum cleaner, is characterized in that, described vacuum cleaner comprises the air flow-producing device as described in any one of claim 1-18.
29. 1 kinds of blowers, is characterized in that, described blower comprises the air flow-producing device as described in any one of claim 1-18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639411.5U CN205064381U (en) | 2015-08-21 | 2015-08-21 | Diffuser, air current production device and dust catcher, hand drier, hair -dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639411.5U CN205064381U (en) | 2015-08-21 | 2015-08-21 | Diffuser, air current production device and dust catcher, hand drier, hair -dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064381U true CN205064381U (en) | 2016-03-02 |
Family
ID=55390944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520639411.5U Expired - Fee Related CN205064381U (en) | 2015-08-21 | 2015-08-21 | Diffuser, air current production device and dust catcher, hand drier, hair -dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206600A (en) * | 2016-12-20 | 2018-06-26 | 戴森技术有限公司 | Motor and the hand-held product with motor |
| CN109416055A (en) * | 2016-11-21 | 2019-03-01 | 东芝生活电器株式会社 | Electric blower and electric dust collector |
-
2015
- 2015-08-21 CN CN201520639411.5U patent/CN205064381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416055A (en) * | 2016-11-21 | 2019-03-01 | 东芝生活电器株式会社 | Electric blower and electric dust collector |
| CN108206600A (en) * | 2016-12-20 | 2018-06-26 | 戴森技术有限公司 | Motor and the hand-held product with motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6836352B2 (en) | Diffuser, airflow generator, and electrical equipment | |
| CN205064381U (en) | Diffuser, air current production device and dust catcher, hand drier, hair -dryer | |
| CN103291655A (en) | Bladeless fan turbine device with splitter blades | |
| CN203189332U (en) | Fan blade and fan | |
| CN106368983A (en) | High-efficiency low-noise pearly nautilus bionic fan | |
| JP2016524094A (en) | Vertical axis wind turbine | |
| CN201865968U (en) | Impeller used for electric drier | |
| CN203584898U (en) | Low-noise high-efficiency central air conditioner outdoor machine cooling axial-flow fan | |
| CN203023086U (en) | Single-motor double-impeller fan | |
| CN108361224A (en) | The equivalent axial flow blower aerofoil profile of forward and reverse rotation aerodynamic property retention | |
| CN203362608U (en) | Bladeless fan turbine gear with splitter vanes | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN201080925Y (en) | Fan flow guiding structure | |
| CN203239628U (en) | Fan turbine in bladeless fan | |
| CN202118011U (en) | Fan without blades | |
| CN203516184U (en) | Fan impeller | |
| CN201232661Y (en) | Mixed-flow spherical blower fan | |
| CN210068521U (en) | Axial fan structure of high-efficient low noise | |
| CN207728618U (en) | A kind of blower impeller | |
| CN203023118U (en) | Impeller combined type double-wind-wheel draught fan | |
| CN207920905U (en) | A kind of composite blower | |
| CN217327808U (en) | Centrifugal fan blade | |
| CN109595198A (en) | A kind of draught fan impeller | |
| CN208778335U (en) | A kind of wind wheel and its blower of application | |
| CN106286400B (en) | A kind of bionical volute tongue with high-efficient low-noise multi-wing centrifugal fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |