CN207010457U - External rotor electric machine with duct wind - Google Patents
External rotor electric machine with duct wind Download PDFInfo
- Publication number
- CN207010457U CN207010457U CN201720847015.0U CN201720847015U CN207010457U CN 207010457 U CN207010457 U CN 207010457U CN 201720847015 U CN201720847015 U CN 201720847015U CN 207010457 U CN207010457 U CN 207010457U
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- CN
- China
- Prior art keywords
- sleeve pipe
- electric machine
- external rotor
- rear end
- duct
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Abstract
The utility model discloses a kind of external rotor electric machine with duct wind, includes the casing of rotation, is fixedly connected with casing front end and carries the drive end bearing bracket of wind wheel fan blade, is fixedly connected with casing rear end and carries the rear end cap of duct fan blade, stator, rotating shaft and sleeve pipe；The center of drive end bearing bracket is through there is through hole, and in stator, the front end of sleeve pipe passes through the through hole of drive end bearing bracket and is flexibly connected with drive end bearing bracket for the rear end of sleeve pipe；One end of rotating shaft is fixedly connected with the center of rear end cap, the back end activity connection of the other end and sleeve pipe.Its advantages of is that wind wheel fan blade rotates with drive end bearing bracket, and duct fan blade rotates with rear end cap so that external rotor electric machine internal gas flow flows to reach more preferable radiating effect faster.
Description
Technical field
It the utility model is related to motor radiating technical field, especially a kind of external rotor electric machine with duct wind.
Background technology
The mode of motor radiating has an oil cooling, water cooling and air-cooled, wherein, oil cooling or water cooling motor is so that cooling medium stream
Through motor internal, the heat of motor internal is taken out of by cooling medium, this type of cooling can reach cooling effect well
Fruit, but oil cooling and water-cooling motor structure are complicated, cooling medium cost is high, easily pollutes environment；And existing ventilated machine, it is cold
But effect is bad, has influence on the service life of motor.
Utility model content
The purpose of this utility model is that solve the deficiencies in the prior art, there is provided a kind of external rotor electric machine with duct wind.
A kind of technical scheme of the present utility model：
A kind of external rotor electric machine with duct wind, includes the casing of rotation, is fixedly connected with casing front end and carries wind wheel
The drive end bearing bracket of fan blade, it is fixedly connected with casing rear end and carries the rear end cap of duct fan blade, stator, rotating shaft and sleeve pipe；Drive end bearing bracket
Center through there is a through hole, the rear end of sleeve pipe in stator, the front end of sleeve pipe through drive end bearing bracket through hole and lived with drive end bearing bracket
Dynamic connection；One end of rotating shaft is fixedly connected with the center of rear end cap, the back end activity connection of the other end and sleeve pipe.
A kind of preferred scheme is that external rotor electric machine also includes fore bearing and rear bearing, the bearing chamber that drive end bearing bracket is provided with, front axle
Hold and be fixed in bearing chamber and be placed on outside sleeve pipe, rear bearing is fixed in sleeve pipe and is placed on outside rotating shaft.
A kind of preferred scheme is that drive end bearing bracket and rear end cap are screwed with casing respectively.
A kind of preferred scheme is sleeve side walls through there is cable-through hole, and the rear end of sleeve pipe is provided with wire hole, the triple line of stator
It is incorporated in after sequentially passing through cable-through hole in sleeve pipe, and in wire hole outlet.
A kind of preferred scheme is that casing inner wall uniformly posts magnet steel.
A kind of preferred scheme is 3~8 that the duct fan blade quantity of rear end cap is.
A kind of preferred scheme is 7 that the duct fan blade quantity of rear end cap is.
A kind of preferred scheme is the side wall that the wind wheel fan blade is laid in drive end bearing bracket, is formed out between adjacent wind wheel fan blade
Air port.
Summary technical scheme, the beneficial effects of the utility model：Wind wheel fan blade is rotated motor with drive end bearing bracket
Inner air is extracted out, and duct fan blade rotates with rear end cap sucks extraneous air in motor, rear end cap active air draught, front end
Lid actively gets rid of wind so that external rotor electric machine internal gas flow flows to reach more preferable radiating effect faster.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail as follows.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model；
Fig. 2 is sectional view of the present utility model；
Fig. 3 is explosive view of the present utility model.
Embodiment
As shown in Figure 1 to Figure 3, a kind of external rotor electric machine with duct wind, the casing 100 of rotation is included, before casing 100
End is fixedly connected and the drive end bearing bracket 101 with wind wheel fan blade 109, is fixedly connected with the rear end of casing 100 and carries duct fan blade 110
Rear end cap 102, stator 104, rotating shaft 105 and sleeve pipe 103；The center of drive end bearing bracket 101, which is run through, through hole, the rear end of sleeve pipe 103
In stator 104, the front end of sleeve pipe 103 passes through the through hole of drive end bearing bracket 101 and is flexibly connected with drive end bearing bracket 101；Rotating shaft 105
One end is fixedly connected with the center of rear end cap 102, and the other end is connected with the back end activity of sleeve pipe 103.External rotor electric machine also includes
Fore bearing 106 and rear bearing 107, the bearing chamber 111 that drive end bearing bracket 101 is provided with, fore bearing 106 are fixed in bearing chamber 111 and covered
In outside sleeve pipe 103, rear bearing 107 is fixed in sleeve pipe 103 and is placed on outside rotating shaft 105.
As shown in Figure 1 to Figure 3, casing 100, drive end bearing bracket 101 and rear end cap 102 rotate together, in rotary course, duct
Fan blade 110 sucks extraneous air inside motor 100, and when air-flow flows through 100 inside of casing, the heat in casing 100 is delivered to
Drive end bearing bracket 101, the wind wheel fan blade 109 of drive end bearing bracket 101 take hot blast out of casing 100, so as to reach the purpose for reducing motor temperature.
As shown in Figure 1 to Figure 3, drive end bearing bracket 101 and rear end cap 102 are fixed with casing 100 by screw 114 respectively.Sleeve pipe
103 side walls are through there is cable-through hole 108, and the rear end of sleeve pipe 103 is provided with wire hole, and the triple line 113 of stator 104 sequentially passed through line
It is incorporated in behind hole 108 in sleeve pipe 103, and in wire hole outlet.The rear end of sleeve pipe 103 can be placed in stator 104, sleeve pipe 103
The triple line 113 of stator 104 can be prevented to be intertwined.The inwall of casing 100 uniformly posts magnet steel.The duct of rear end cap 102
The quantity of fan blade 110 be 3~8.The quantity of duct fan blade 110 of rear end cap 102 be 7.It is that the wind wheel fan blade 109 is uniform
Located at the side wall of drive end bearing bracket 101, air outlet is formed between adjacent wind wheel fan blade 109.
Above is specific embodiment of the present utility model, it is noted that for those skilled in the art
For, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as the scope of protection of the utility model.
Claims (8)
- A kind of 1. external rotor electric machine with duct wind, it is characterised in that the casing including rotation, be fixedly connected with casing front end and Drive end bearing bracket with wind wheel fan blade, it is fixedly connected with casing rear end and carries the rear end cap of duct fan blade, stator, rotating shaft and set Pipe；The center of the drive end bearing bracket is through there is through hole, and in stator, the front end of sleeve pipe passes through drive end bearing bracket for the rear end of described sleeve pipe Through hole is simultaneously flexibly connected with drive end bearing bracket；One end of the rotating shaft is fixedly connected with the center of rear end cap, after the other end and sleeve pipe End is flexibly connected.
- 2. the external rotor electric machine according to claim 1 with duct wind, it is characterised in that the external rotor electric machine also includes Fore bearing and rear bearing, the bearing chamber that the drive end bearing bracket is provided with, the fore bearing are fixed in bearing chamber and are placed on outside sleeve pipe, institute Rear bearing is stated to be fixed in sleeve pipe and be placed on outside rotating shaft.
- 3. the external rotor electric machine according to claim 1 or 2 with duct wind, it is characterised in that the drive end bearing bracket and rear end Lid is screwed with casing respectively.
- 4. the external rotor electric machine according to claim 1 or 2 with duct wind, it is characterised in that described sleeve pipe side wall runs through There is a cable-through hole, the rear end of described sleeve pipe is provided with wire hole, and the triple line of stator is incorporated in sleeve pipe after sequentially passing through cable-through hole, and In wire hole outlet.
- 5. the external rotor electric machine according to claim 1 or 2 with duct wind, it is characterised in that the casing inner wall is uniform Post magnet steel.
- 6. the external rotor electric machine according to claim 1 or 2 with duct wind, it is characterised in that the duct of the rear end cap Fan blade quantity be 3~8.
- 7. the external rotor electric machine according to claim 6 with duct wind, it is characterised in that the duct fan blade of the rear end cap Quantity be 7.
- 8. the external rotor electric machine according to claim 6 with duct wind, it is characterised in that the wind wheel fan blade is laid in The side wall of drive end bearing bracket, air outlet is formed between adjacent wind wheel fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847015.0U CN207010457U (en) | 2017-07-11 | 2017-07-11 | External rotor electric machine with duct wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847015.0U CN207010457U (en) | 2017-07-11 | 2017-07-11 | External rotor electric machine with duct wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010457U true CN207010457U (en) | 2018-02-13 |
Family
ID=61453880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847015.0U Active CN207010457U (en) | 2017-07-11 | 2017-07-11 | External rotor electric machine with duct wind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207010457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336864A (en) * | 2018-04-09 | 2018-07-27 | 深圳市资嘉科技有限公司 | A kind of radiator structure of outer rotor brushless motor |
| CN109639030A (en) * | 2019-01-21 | 2019-04-16 | 王龙 | A kind of high-speed motor and the hair dryer including it |
-
2017
- 2017-07-11 CN CN201720847015.0U patent/CN207010457U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336864A (en) * | 2018-04-09 | 2018-07-27 | 深圳市资嘉科技有限公司 | A kind of radiator structure of outer rotor brushless motor |
| CN109639030A (en) * | 2019-01-21 | 2019-04-16 | 王龙 | A kind of high-speed motor and the hair dryer including it |
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