US20150056088A1 - Inner-rotor fan - Google Patents
Inner-rotor fan Download PDFInfo
- Publication number
- US20150056088A1 US20150056088A1 US14/085,025 US201314085025A US2015056088A1 US 20150056088 A1 US20150056088 A1 US 20150056088A1 US 201314085025 A US201314085025 A US 201314085025A US 2015056088 A1 US2015056088 A1 US 2015056088A1
- Authority
- US
- United States
- Prior art keywords
- magnetic ring
- disposed
- retaining tube
- hub
- fan
- 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.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/026—Units comprising pumps and their driving means with a magnetic coupling
-
- 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
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
Definitions
- the present disclosure relates to a fan, and in particular, to an inner-rotor fan.
- a rotor of a conventional inner-rotor fan has a hub, a shaft, and a magnetic ring around the shaft. The rotor is rotated by the magnetic field relative to the stator and the magnetic ring.
- FIG. 1 is a transverse cross-sectional view of a conventional magnetic ring 1 .
- the magnetic ring 1 includes a plurality of south poles S and north poles N alternately arranged.
- Each of the south poles S and the north poles N are exposed from the inner wall 11 and the outer wall 12 of the magnetic ring 1 . Therefore, the magnetic field generated by the magnetic ring 1 is distributed in an inner hole 13 of the magnetic ring 1 , and the rotational stability of the fan is decreased.
- an iron ring is installed in the hub of the fan.
- the iron ring passes through the inner hole 13 and fixed on the inner wall 11 of the magnetic ring 1 .
- the iron ring is made of metal, and thus the manufacturing cost of the inner-rotor fan is increased.
- the iron ring and the hub are not formed as a single piece, and thus the rotational stability of the fan is decreased
- an object of the present disclosure is to decrease the manufacturing cost of the inner-rotor fans, and to increase to rotational stability of the inner-rotor fans.
- the present disclosure provides an inner-rotor fan including a fan frame, a bearing, and a rotor.
- the bearing is disposed on the fan frame.
- the rotor includes a hub, a retaining tube, a magnetic ring, a shaft and a plurality of blades.
- the retaining tube is disposed in the hub.
- the magnetic ring has an inner hole, and the retaining tube is disposed in the inner hole.
- the shaft is disposed on the hub, located in the retaining tube, and passes through the bearing.
- the blades are respectively disposed around the hub.
- the retaining tube and the hub are formed as a single piece, and the magnetic flux in the inner hole is about 0 Wb.
- the inner-rotor fan of the present disclosure has a magnetic ring with about 0 Wb of magnetic flux in the inner hole thereof, and therefore, the iron ring is excluded to decrease the manufacturing cost of the inner-rotor fan. Moreover, since the retaining tube and the hub are formed as a single piece, the rotational stability of the inner-rotor fan is increased.
- FIG. 1 is a transverse cross-sectional view of a conventional magnetic ring.
- FIG. 2 is a perspective view of an inner-rotor fan according to the present disclosure.
- FIG. 3 is a cross-sectional view of the inner-rotor fan according to the present disclosure.
- FIG. 4 is an exploded view of a rotor according to the present disclosure.
- FIG. 5 is a transverse cross-sectional view of the magnetic ring according to the present disclosure.
- FIG. 2 is a perspective view of an inner-rotor fan 2 according to the present disclosure.
- FIG. 3 is a cross-sectional view of the inner-rotor fan 2 according to the present disclosure.
- FIG. 4 is an exploded view of a rotor 50 according to the present disclosure.
- the inner-rotor fan 2 includes a fan frame 20 , a stator 30 , a bearing 40 , and a rotor 50 .
- the fan frame 20 includes a base 21 , a sleeve 22 , a holding portion 23 , and a plurality of support ribs 24 connected to the base 21 .
- the sleeve 22 and the holding portion 23 are a tube structure disposed on the base 21 and extended along an extension direction D 1 .
- the extension direction D 1 is perpendicular to the base 21 .
- the base 21 , the sleeve 22 , and the holding portion 23 are formed as a single piece, or are independent parts according to a variety of designs.
- the sleeve 22 is located in the retaining tube 53 .
- the stator 30 is fixed on the holding portion 23 .
- the stator 30 includes a metal element 31 , a holding rack 32 , a coil 33 , and an electric power board 34 .
- the metal element 31 is disposed on the holding rack 32 .
- the metal element 31 is made of silicon steel sheets.
- the metal element 31 is covered by an insulation layer and is insulated relative to the coil 33 .
- the metal element 31 is made of magnetic material.
- the coil 33 is wound to the holding rack 32 and the metal element 31 , and corresponds to the magnetic ring 54 .
- the electric power board 34 is fixed on the inner wall of the holding portion 23 and a support portion 221 of the sleeve 22 . Further, the electric power board 34 is electrically connected to the coil 33 .
- the holding rack 32 is fixed on the electric power board 34 .
- the bearing 40 is fixed in the sleeve 22 , and extended along an axis AX 1 . In some embodiments, the extension direction D 1 is parallel to axis AX 1 .
- the rotor 50 includes a hub 51 , a shaft 52 , a retaining tube 53 , a magnetic ring 54 , and a plurality of blades 55 .
- the hub 51 is a hollow structure, and the center of the hub 51 is located at the axis AX 1 .
- the stator 30 and the bearing 40 are located in the hub 51 .
- the shaft 52 is disposed in the hub 51 , extended along the axis AX 1 , and passes through the bearing 40 .
- the retaining tube 53 is a tube structure disposed on an inner surface 511 of the hub 51 and extended along the extension direction D 1 .
- the retaining tube 53 is around the shaft 52 , the sleeve 22 , and the bearing 40 .
- a plurality of first positioning structures 532 is disposed on an outer surface 531 of the retaining tube 53 .
- the magnetic ring 54 is a tube structure extended along the extension direction D 1 .
- the magnetic ring 54 is disposed on the retaining tube 53 and corresponds to the stator 30 .
- the magnetic ring 54 has an inner wall 541 , an inner hole 542 , a plurality of second positioning structures 543 , and an outer wall 544 facing the stator 30 .
- the inner wall 541 forms an inner hole 542 extended along the axis AX 1
- the retaining tube 53 is disposed on the inner hole 542 .
- the second positioning structure 543 is disposed on the inner wall 541 .
- the first positioning structure 532 is retained on the second positioning structure 543 to make the magnetic ring 54 rotate following the retaining tube 53 .
- the first positioning structure 532 is a rib extended along the extension direction D 1
- the second positioning structure 543 is a groove extended along the extension direction D 1 .
- the rib is located in the groove.
- the first positioning structure 532 is a groove
- the second positioning structure 543 is a rib.
- a groove 5401 may be formed on a magnetic ring 54 adjacent to the retaining tube 53 .
- the weight of the rotor 50 is decreased by the groove 5401 .
- a balancing material may be disposed in the groove 5401 to balance the rotation of the rotor 50 . Therefore, the vibration of the inner-rotor fan 2 is decreased.
- the blades 55 are arranged around the hub 51 .
- the rotor 50 when power is applied to the coil 33 , the rotor 50 is rotated by an alternating magnetic field between the coil 33 and the magnetic ring 54 .
- the magnetic ring 54 is a plastic magnetic ring 54 made of magnetic powder and plastic.
- the magnetic powder is distributed in the plastic.
- a magnetic field is applied to the magnetic ring 54 to change the arrangement of the magnetic powder.
- the arrangement of the magnetic powder is fixed to make the plastic magnetic ring 54 generate a predetermined magnetic field.
- FIG. 5 is a transverse cross-sectional view of the magnetic ring 54 according to the present disclosure.
- the south poles S and the north poles N of the magnetic ring 54 of this embodiment are alternately arranged on the magnetic ring 54 and adjacent to the outer wall 544 of the magnetic ring 54 . Therefore, the magnetic field does not (or little) pass through the inner wall 541 of the magnetic ring 54 . Therefore, the magnetic flux in the inner hole 542 is about 0 Wb.
- the inner-rotor fan 2 of the embodiment excludes a magnetic field shielding element (such as an iron ring) disposed on an inner wall 541 of the magnetic ring 54 (or between the magnetic ring 54 and the shaft 52 ). Therefore, the manufacturing cost of the inner-rotor fan 2 is decreased.
- a magnetic field shielding element such as an iron ring
- the retaining tube 53 may be made of cheaper plastic, and thus the manufacturing cost of the inner-rotor fan 2 is decreased.
- the hub 51 and the retaining tube 53 have the same material, and the hub 51 and the retaining tube 53 are made of plastic. Therefore, the retaining tube 53 and the hub 51 are easily formed as a single piece, and the rotational stability of the rotor 50 is increased.
- the positioning structure is easily formed on the retaining tube 53 to limit the rotation between the magnetic ring 54 and the retaining tube 53 , increasing the rotational stability of the rotor 50 .
- the inner-rotor fan of the present disclosure has a magnetic ring with about 0 Wb of magnetic flux in the inner hole thereof, and therefore, the iron ring is excluded to decrease the manufacturing cost of the inner-rotor fan. Moreover, since the retaining tube and the hub are formed as a single piece, the rotational stability of the inner-rotor fan is increased.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
An inner-rotor fan includes a hub, a retaining tube, and a magnetic ring. The retaining tube is disposed in the hub, and the magnetic ring is disposed on the retaining tube. The retaining tube and the hub are formed as a single piece, and thus the stability of the fan is increased. Moreover, the magnetic flux in an inner hole of the magnetic ring is about 0 Wb, and thus an iron ring within the magnetic ring may be excluded.
Description
- This Application claims priority of China Patent Application No. 201310368404.1, filed on Aug. 21, 2013, the entirety of which is incorporated by reference herein.
- 1. Field of the Invention
- The present disclosure relates to a fan, and in particular, to an inner-rotor fan.
- 2. Description of the Related Art
- In general, a rotor of a conventional inner-rotor fan has a hub, a shaft, and a magnetic ring around the shaft. The rotor is rotated by the magnetic field relative to the stator and the magnetic ring.
-
FIG. 1 is a transverse cross-sectional view of a conventional magnetic ring 1. As shown inFIG. 1 , the magnetic ring 1 includes a plurality of south poles S and north poles N alternately arranged. Each of the south poles S and the north poles N are exposed from theinner wall 11 and theouter wall 12 of the magnetic ring 1. Therefore, the magnetic field generated by the magnetic ring 1 is distributed in aninner hole 13 of the magnetic ring 1, and the rotational stability of the fan is decreased. - To solve the described problem, an iron ring is installed in the hub of the fan. The iron ring passes through the
inner hole 13 and fixed on theinner wall 11 of the magnetic ring 1. However, the iron ring is made of metal, and thus the manufacturing cost of the inner-rotor fan is increased. Furthermore, the iron ring and the hub are not formed as a single piece, and thus the rotational stability of the fan is decreased - To solve the described problems, an object of the present disclosure is to decrease the manufacturing cost of the inner-rotor fans, and to increase to rotational stability of the inner-rotor fans.
- The present disclosure provides an inner-rotor fan including a fan frame, a bearing, and a rotor. The bearing is disposed on the fan frame. The rotor includes a hub, a retaining tube, a magnetic ring, a shaft and a plurality of blades. The retaining tube is disposed in the hub. The magnetic ring has an inner hole, and the retaining tube is disposed in the inner hole. The shaft is disposed on the hub, located in the retaining tube, and passes through the bearing. The blades are respectively disposed around the hub. The retaining tube and the hub are formed as a single piece, and the magnetic flux in the inner hole is about 0 Wb.
- In conclusion, the inner-rotor fan of the present disclosure has a magnetic ring with about 0 Wb of magnetic flux in the inner hole thereof, and therefore, the iron ring is excluded to decrease the manufacturing cost of the inner-rotor fan. Moreover, since the retaining tube and the hub are formed as a single piece, the rotational stability of the inner-rotor fan is increased.
- The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
-
FIG. 1 is a transverse cross-sectional view of a conventional magnetic ring. -
FIG. 2 is a perspective view of an inner-rotor fan according to the present disclosure. -
FIG. 3 is a cross-sectional view of the inner-rotor fan according to the present disclosure. -
FIG. 4 is an exploded view of a rotor according to the present disclosure. -
FIG. 5 is a transverse cross-sectional view of the magnetic ring according to the present disclosure. -
FIG. 2 is a perspective view of an inner-rotor fan 2 according to the present disclosure.FIG. 3 is a cross-sectional view of the inner-rotor fan 2 according to the present disclosure.FIG. 4 is an exploded view of arotor 50 according to the present disclosure. As shown inFIGS. 2 , 3 and 4, the inner-rotor fan 2 includes afan frame 20, astator 30, abearing 40, and arotor 50. Thefan frame 20 includes abase 21, asleeve 22, aholding portion 23, and a plurality ofsupport ribs 24 connected to thebase 21. Thesleeve 22 and theholding portion 23 are a tube structure disposed on thebase 21 and extended along an extension direction D1. In some embodiments, the extension direction D1 is perpendicular to thebase 21. Thebase 21, thesleeve 22, and theholding portion 23 are formed as a single piece, or are independent parts according to a variety of designs. Moreover, thesleeve 22 is located in theretaining tube 53. - The
stator 30 is fixed on theholding portion 23. Thestator 30 includes ametal element 31, aholding rack 32, acoil 33, and anelectric power board 34. Themetal element 31 is disposed on theholding rack 32. In some embodiments, themetal element 31 is made of silicon steel sheets. Themetal element 31 is covered by an insulation layer and is insulated relative to thecoil 33. In some embodiments, themetal element 31 is made of magnetic material. - The
coil 33 is wound to theholding rack 32 and themetal element 31, and corresponds to themagnetic ring 54. Theelectric power board 34 is fixed on the inner wall of theholding portion 23 and asupport portion 221 of thesleeve 22. Further, theelectric power board 34 is electrically connected to thecoil 33. Theholding rack 32 is fixed on theelectric power board 34. Thebearing 40 is fixed in thesleeve 22, and extended along an axis AX1. In some embodiments, the extension direction D1 is parallel to axis AX1. - The
rotor 50 includes ahub 51, ashaft 52, aretaining tube 53, amagnetic ring 54, and a plurality ofblades 55. Thehub 51 is a hollow structure, and the center of thehub 51 is located at the axis AX1. Thestator 30 and thebearing 40 are located in thehub 51. - The
shaft 52 is disposed in thehub 51, extended along the axis AX1, and passes through thebearing 40. Theretaining tube 53 is a tube structure disposed on aninner surface 511 of thehub 51 and extended along the extension direction D1. Theretaining tube 53 is around theshaft 52, thesleeve 22, and thebearing 40. A plurality offirst positioning structures 532 is disposed on anouter surface 531 of the retainingtube 53. - The
magnetic ring 54 is a tube structure extended along the extension direction D1. Themagnetic ring 54 is disposed on the retainingtube 53 and corresponds to thestator 30. Themagnetic ring 54 has aninner wall 541, aninner hole 542, a plurality ofsecond positioning structures 543, and anouter wall 544 facing thestator 30. Theinner wall 541 forms aninner hole 542 extended along the axis AX1, and the retainingtube 53 is disposed on theinner hole 542. Thesecond positioning structure 543 is disposed on theinner wall 541. Thefirst positioning structure 532 is retained on thesecond positioning structure 543 to make themagnetic ring 54 rotate following the retainingtube 53. - In the embodiment, the
first positioning structure 532 is a rib extended along the extension direction D1, and thesecond positioning structure 543 is a groove extended along the extension direction D1. Further, the rib is located in the groove. In another embodiment, thefirst positioning structure 532 is a groove, and thesecond positioning structure 543 is a rib. Furthermore, in a situation where the magnetic field corresponding to thecoil 33 is not influenced, agroove 5401 may be formed on amagnetic ring 54 adjacent to the retainingtube 53. The weight of therotor 50 is decreased by thegroove 5401. Furthermore, a balancing material may be disposed in thegroove 5401 to balance the rotation of therotor 50. Therefore, the vibration of the inner-rotor fan 2 is decreased. - The
blades 55 are arranged around thehub 51. In the embodiment, when power is applied to thecoil 33, therotor 50 is rotated by an alternating magnetic field between thecoil 33 and themagnetic ring 54. - In the embodiment, the
magnetic ring 54 is a plasticmagnetic ring 54 made of magnetic powder and plastic. The magnetic powder is distributed in the plastic. Before the plastic is solidified, a magnetic field is applied to themagnetic ring 54 to change the arrangement of the magnetic powder. After the plastic is solidified, the arrangement of the magnetic powder is fixed to make the plasticmagnetic ring 54 generate a predetermined magnetic field. -
FIG. 5 is a transverse cross-sectional view of themagnetic ring 54 according to the present disclosure. As shown inFIG. 5 , the south poles S and the north poles N of themagnetic ring 54 of this embodiment are alternately arranged on themagnetic ring 54 and adjacent to theouter wall 544 of themagnetic ring 54. Therefore, the magnetic field does not (or little) pass through theinner wall 541 of themagnetic ring 54. Therefore, the magnetic flux in theinner hole 542 is about 0 Wb. - Since the magnetic flux in the
inner hole 542 of themagnetic ring 54 is about 0 Wb, the inner-rotor fan 2 of the embodiment excludes a magnetic field shielding element (such as an iron ring) disposed on aninner wall 541 of the magnetic ring 54 (or between themagnetic ring 54 and the shaft 52). Therefore, the manufacturing cost of the inner-rotor fan 2 is decreased. - Further, since the embodiment excludes the magnetic field shielding element made of metal, the retaining
tube 53 may be made of cheaper plastic, and thus the manufacturing cost of the inner-rotor fan 2 is decreased. In addition, thehub 51 and the retainingtube 53 have the same material, and thehub 51 and the retainingtube 53 are made of plastic. Therefore, the retainingtube 53 and thehub 51 are easily formed as a single piece, and the rotational stability of therotor 50 is increased. - Moreover, since the retaining
tube 53 is made of plastic, the positioning structure is easily formed on the retainingtube 53 to limit the rotation between themagnetic ring 54 and the retainingtube 53, increasing the rotational stability of therotor 50. - In conclusion, the inner-rotor fan of the present disclosure has a magnetic ring with about 0 Wb of magnetic flux in the inner hole thereof, and therefore, the iron ring is excluded to decrease the manufacturing cost of the inner-rotor fan. Moreover, since the retaining tube and the hub are formed as a single piece, the rotational stability of the inner-rotor fan is increased.
- While the invention has been described by way of example and in terms of preferred embodiment, it is to be understood that the invention is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims (12)
1. An inner-rotor fan, comprising:
a fan frame;
a bearing disposed on the fan frame; and
a rotor comprising:
a hub;
a retaining tube disposed in the hub;
a magnetic ring, having an inner hole, wherein the retaining tube is disposed in the inner hole;
a shaft, disposed on the hub, located within the retaining tube, and passing through the bearing; and
a plurality of blades disposed around the hub,
wherein the retaining tube and the hub are formed as a single piece, and a magnetic flux in the inner hole is about 0 Wb.
2. The inner-rotor fan as claimed in claim 1 , wherein the magnetic ring is a plastic magnetic ring, and made of magnetic powder and plastic.
3. The inner-rotor fan as claimed in claim 2 , wherein the hub and the retaining tube have the same material, and the hub and the retaining tube is made of plastic.
4. The inner-rotor fan as claimed in claim 1 , wherein the magnetic ring has a groove adjacent to the retaining tube.
5. The inner-rotor fan as claimed in claim 1 , excluding a magnetic field shielding element located between the magnetic ring and the shaft.
6. The inner-rotor fan as claimed in claim 1 , wherein the retaining tube has a plurality of first positioning structures, and the magnetic ring has a plurality of second positioning structures disposed on the inner hole, wherein the first positioning structure is retained on the second positioning structure to make the magnetic ring rotate following the retaining tube.
7. The inner-rotor fan as claimed in claim 6 , wherein the first positioning structure is a rib, the second positioning structure is a groove, and the rib is located in the groove.
8. The inner-rotor fan as claimed in claim 6 , wherein the first positioning structure is a groove, the second positioning structure is a rib, and the rib is located in the groove.
9. The inner-rotor fan as claimed in claim 1 , wherein the fan frame comprises a base and a sleeve disposed on the base, and the bearing is disposed in the sleeve.
10. The inner-rotor fan as claimed in claim 9 , wherein the fan frame further comprises a holding portion disposed on the base and around the sleeve.
11. The inner-rotor fan as claimed in claim 10 , further comprising a stator disposed on the holding portion, and corresponding to the magnetic ring.
12. The inner-rotor fan as claimed in claim 11 , wherein the sleeve further comprises a support portion, the stator further comprises an electric power board fixed on the support portion and a coil electrically connected with the electric power board and corresponding to the magnetic ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/389,253 US10989204B2 (en) | 2013-08-21 | 2019-04-19 | Inner-rotor fan |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310368404.1 | 2013-08-21 | ||
CN201310368404.1A CN104421174B (en) | 2013-08-21 | 2013-08-21 | Inner-rotor-type fan |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/389,253 Continuation US10989204B2 (en) | 2013-08-21 | 2019-04-19 | Inner-rotor fan |
Publications (1)
Publication Number | Publication Date |
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US20150056088A1 true US20150056088A1 (en) | 2015-02-26 |
Family
ID=52480544
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US14/085,025 Abandoned US20150056088A1 (en) | 2013-08-21 | 2013-11-20 | Inner-rotor fan |
US16/389,253 Active US10989204B2 (en) | 2013-08-21 | 2019-04-19 | Inner-rotor fan |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US16/389,253 Active US10989204B2 (en) | 2013-08-21 | 2019-04-19 | Inner-rotor fan |
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US (2) | US20150056088A1 (en) |
CN (1) | CN104421174B (en) |
Cited By (2)
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CN110296101A (en) * | 2019-05-07 | 2019-10-01 | 苏州顺福利智能科技有限公司 | Minitype flabellum |
USD872255S1 (en) * | 2016-06-24 | 2020-01-07 | Delta Electronics, Inc. | Frame of fan |
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TWI634267B (en) * | 2017-06-02 | 2018-09-01 | 建準電機工業股份有限公司 | A fan and frame |
CN107201734B (en) * | 2017-06-08 | 2018-08-17 | 宁波大叶园林设备股份有限公司 | Walking tool permanent magnet motor stator connects fan blade rotation and air duct silencer blows leaf machine |
CN107268501B (en) * | 2017-06-08 | 2018-08-17 | 宁波大叶园林设备股份有限公司 | Portable tool stator connects fan blade rotation and brushless motor that rotor does not turn blows leaf machine |
CN109380793A (en) * | 2017-08-04 | 2019-02-26 | 金士盾科技股份有限公司 | Can space make the air vertical convection device of scape |
US11428235B2 (en) | 2020-05-15 | 2022-08-30 | Quanta Computer Inc. | Fan module and motor |
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- 2013-08-21 CN CN201310368404.1A patent/CN104421174B/en active Active
- 2013-11-20 US US14/085,025 patent/US20150056088A1/en not_active Abandoned
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2019
- 2019-04-19 US US16/389,253 patent/US10989204B2/en active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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USD872255S1 (en) * | 2016-06-24 | 2020-01-07 | Delta Electronics, Inc. | Frame of fan |
CN110296101A (en) * | 2019-05-07 | 2019-10-01 | 苏州顺福利智能科技有限公司 | Minitype flabellum |
Also Published As
Publication number | Publication date |
---|---|
US20190242389A1 (en) | 2019-08-08 |
CN104421174A (en) | 2015-03-18 |
US10989204B2 (en) | 2021-04-27 |
CN104421174B (en) | 2017-07-04 |
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