CN201319523Y - Scavenger fan with brushless DC motor - Google Patents
Scavenger fan with brushless DC motor Download PDFInfo
- Publication number
- CN201319523Y CN201319523Y CNU2008202044875U CN200820204487U CN201319523Y CN 201319523 Y CN201319523 Y CN 201319523Y CN U2008202044875 U CNU2008202044875 U CN U2008202044875U CN 200820204487 U CN200820204487 U CN 200820204487U CN 201319523 Y CN201319523 Y CN 201319523Y
- Authority
- CN
- China
- Prior art keywords
- motor
- rotor
- shaped groove
- brushless motor
- waterproof
- 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
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- 239000002516 radical scavenger Substances 0.000 title abstract 3
- 238000009423 ventilation Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A direct current brushless motor scavenger fan comprises a panel, a frame, a motor, blades and shutters, wherein the blades are installed on a motor rotor and a motor rotating shaft, the motor is a direct current brushless motor, and a waterproof U-shaped groove structure is arranged between the motor rotor and a motor stator. The inner side of the outer edge of the motor rotor is provided with a U-shaped groove, and the outer edge of the motor stator is sleeved in the U-shaped groove to form a waterproof structure. The utility model discloses a set up U-shaped groove structure between electric motor rotor and motor stator to and the fan blade adopts interference or screw thread screens with electric motor rotor, the waterproof performance of reinforcing scavenger fan, and is more reliable and more stable during the operation. The air-exchanging device has the advantages of simple and reasonable structure, high air-exchanging efficiency, low noise, low cost and longer service life. Compared with the alternating current motor ventilator, the energy consumption is saved by about 50%.
Description
Technical field
The utility model relates to a kind of dc brushless motor ventilation fan, belongs to the improvement technology to household ventilation fan.
Background technology
Now, the whole world is all at the energy of advocating thriftiness, and the electrical equipment that ventilation fan must be adorned as popular family particularly in kitchen and lavatory, has occupied the energy resource consumption of considerable part.Existing general ventilation fan all is to adopt alternating current machine to drive, and its energy consumption is big, and noise is relatively large, brings adverse factors for the use of family, and the position of motor touches the water of indoor or outdoors easily, influences the useful life of motor.China Patent No. ZL2007201879948 discloses a kind of bus air-conditioning brush DC condensation fan, comprises fan and motor; The stator winding lead-in wire of described motor links to each other with the brushless electric machine electronic controller, and the output shaft of motor is coaxial with the rotating shaft of fan; Motor adopts the brush DC electric axial flow machine of position-sensor-free; The brushless electric machine electronic controller mainly comprises microprocessor, drive circuit, three-phase brachium pontis power circuit, back electromotive force sample circuit and protective circuit, microprocessor is according to the given control signal in outside, by the switching of power tube in the drive circuit control three-phase brachium pontis power circuit, thus the operating state of control brush DC electric axial flow machine; Simultaneously, the back electromotive force sample circuit is given microprocessor the working condition signal feedback of motor, and microprocessor is controlled each protective circuit and worked.Its structure is complicated, is necessary further improvement and perfect.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, the energy consumption low noise is little, relative low price, dc brushless motor ventilation fan that water resistance is good, to overcome weak point of the prior art.
A kind of dc brushless motor ventilation fan by this purpose design, comprise panel, frame, motor, fan blade and blinds, fan blade is installed on rotor and the machine shaft, its architectural feature is that described motor is a dc brushless motor, is provided with waterproof U-lag structure between rotor and the motor stator.
The outer rim inboard of described rotor is provided with U-lag, and the outer rim of motor stator is inserted in the aforementioned U-lag and is constituted waterproof construction.
Be to be provided with screw thread screens structure between the outer rim of fan blade axle sleeve and rotor.Perhaps be to be provided with interference screens structure between the outer rim of fan blade axle sleeve and rotor.Machine shaft runs through rotor and motor stator, and front end is provided with screw thread and trim joins.
The utility model is by being provided with the U-lag structure between rotor and motor stator, and fan blade and rotor adopt interference or screw thread screens, strengthens the water resistance of ventilation fan, and is more reliable and more stable during operation.It is simple and reasonable, the scavenging efficiency height, and the noise low cost is low, longer service life.Compare the energy consumption of alternating current machine ventilation fan and will save nearly 50%.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is an opposite side TV structure schematic diagram.
Fig. 4 is the A place structure for amplifying schematic diagram among Fig. 2.
Fig. 5 is the B place structure for amplifying schematic diagram among Fig. 3.
Embodiment
Referring to Fig. 1-Fig. 3, this dc brushless motor ventilation fan comprises panel 1, frame 2, motor 3, fan blade 4 and blinds 5, and motor 3 is a dc brushless motor, and it is lower to compare traditional energy that alternating current machine consumed, and noise is littler.Fan blade 4 is installed on rotor 32 and the machine shaft 33, is provided with waterproof U-lag structure 6 between rotor 32 and the motor stator 31.Waterproof U-lag structure 6 can prevent that sealing enters motor 3, thereby improves the useful life of fail safe and prolongation motor 3.
Being provided with screw thread screens 7 structures of coarse pitch between the outer rim of fan blade axle sleeve and rotor 32, as shown in Figure 4, perhaps is large-area interference screens 8 structures between the outer rim of fan blade axle sleeve and rotor, as shown in Figure 5, and is connected with machine shaft 33.When operation, the stability that fan blade 4 cooperates rotor 32 to rotate increases greatly.
Claims (5)
1, a kind of dc brushless motor ventilation fan, comprise panel (1), frame (2), motor (3), fan blade (4) and blinds (5), fan blade is installed on rotor (32) and the machine shaft (33), it is characterized in that described motor is a dc brushless motor, is provided with waterproof U-lag structure (6) between rotor and the motor stator (31).
2, dc brushless motor ventilation fan according to claim 1 is characterized in that the outer rim inboard of described rotor is provided with U-lag, and the outer rim of motor stator is inserted in the aforementioned U-lag and is constituted waterproof construction.
3, dc brushless motor ventilation fan according to claim 1 is characterized in that being provided with screw thread screens structure (7) between the outer rim of fan blade axle sleeve and rotor.
4, dc brushless motor ventilation fan according to claim 1 is characterized in that being provided with interference screens structure (8) between the outer rim of fan blade axle sleeve and rotor.
5, dc brushless motor ventilation fan according to claim 1 it is characterized in that described machine shaft runs through rotor and motor stator, and front end is provided with screw thread and trim joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202044875U CN201319523Y (en) | 2008-11-27 | 2008-11-27 | Scavenger fan with brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202044875U CN201319523Y (en) | 2008-11-27 | 2008-11-27 | Scavenger fan with brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319523Y true CN201319523Y (en) | 2009-09-30 |
Family
ID=41198282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202044875U Expired - Fee Related CN201319523Y (en) | 2008-11-27 | 2008-11-27 | Scavenger fan with brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201319523Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678587A (en) * | 2012-05-28 | 2012-09-19 | 江门市金羚风扇制造有限公司 | Ventilator installed on thin plate |
| CN103032350A (en) * | 2011-10-08 | 2013-04-10 | 田志辉 | Water-proof ventilating fan |
| CN104011978A (en) * | 2011-12-26 | 2014-08-27 | 松下电器产业株式会社 | Ventilation device |
| CN105927566A (en) * | 2016-06-24 | 2016-09-07 | 惠州市金力电机有限公司 | Waterproof brushless fan |
| CN114076106A (en) * | 2020-08-18 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor assembly, fan and range hood |
-
2008
- 2008-11-27 CN CNU2008202044875U patent/CN201319523Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032350A (en) * | 2011-10-08 | 2013-04-10 | 田志辉 | Water-proof ventilating fan |
| CN103032350B (en) * | 2011-10-08 | 2015-02-11 | 田志辉 | Water-proof ventilating fan |
| CN104011978A (en) * | 2011-12-26 | 2014-08-27 | 松下电器产业株式会社 | Ventilation device |
| CN104011978B (en) * | 2011-12-26 | 2016-10-26 | 松下知识产权经营株式会社 | Air interchanger |
| CN102678587A (en) * | 2012-05-28 | 2012-09-19 | 江门市金羚风扇制造有限公司 | Ventilator installed on thin plate |
| CN105927566A (en) * | 2016-06-24 | 2016-09-07 | 惠州市金力电机有限公司 | Waterproof brushless fan |
| CN114076106A (en) * | 2020-08-18 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor assembly, fan and range hood |
| CN114076106B (en) * | 2020-08-18 | 2024-03-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor assembly, fan and range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20131127 |