CN203014629U - Outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor - Google Patents
Outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor Download PDFInfo
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- CN203014629U CN203014629U CN 201320004291 CN201320004291U CN203014629U CN 203014629 U CN203014629 U CN 203014629U CN 201320004291 CN201320004291 CN 201320004291 CN 201320004291 U CN201320004291 U CN 201320004291U CN 203014629 U CN203014629 U CN 203014629U
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Abstract
The utility model provides an outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor. A water-cooling sleeve is arranged on the motor main shaft; the front end of the water-cooling sleeve is fixedly connected onto the front end cover, and the back end is arranged on the main shaft via a bearing; a cooling water inlet and a cooling water outlet are arranged on the water-cooling sleeve; a stator core is arranged outside the water-cooling sleeve, and a stator winding is arranged on the stator core; an outer rotor positioning bearing is arranged on the front end cover, the back end of the main shaft is a rotor spline shaft, the outer rotor is arranged on the main shaft via the outer rotor positioning bearing and the rotor spline shaft and fastened via a rotor spline sleeve; the inner side of the outer rotor is provided with an outer rotor pole array; the stator core has 36 grooves and 36 teeth, adopts a consequent pole connection and has altogether three phases of 24 poles, and the magnetic pole opening is provided with a rotor position sensor; and the outer rotor pole array adopts a combination of 96 square magnetic tiles with half Ns and half Ss, the 96 square magnetic tiles are distributed into four circles of arrays, each circle has 24 pieces, and a hollow aluminium tube is arranged between each two adjacent magnetic tiles. The outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor can meet the use in low-rotation speed large-torque situations.
Description
Technical field
The utility model is a kind of motor, particularly a kind of external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor.
Background technology
Motor comprises rotor and stator, and rotor is located in rotating shaft, and stator surrounding is in the rotor outside, so be called internal rotor, external stator.Internal rotor external stator motor have higher rotating speed, but moment of torsion is less, is not suitable for the low rotation speed large torque occasion and uses.
Summary of the invention
The purpose of this utility model is to be not suitable in order to overcome existing internal rotor external stator motor the defective that the low rotation speed large torque occasion is used, and invents a kind of external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor.
The purpose of this utility model realizes as follows: described external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor, comprise motor housing, motor housing is connected with front end housing and rear end cap by penetrating screw, front end housing is provided with main spindle front bearing, rear end cap is provided with mainshaft rear bearing, and main spindle front bearing and mainshaft rear bearing are provided with main shaft; On main shaft, cover has water collar, and the front end of water collar is fixed on front end housing, and the rear end of water collar is located on main shaft by the stator rear bearings, and water collar keeps static when main shaft rotates, and water collar is provided with cooling water inlet and coolant outlet; The outside of water collar is provided with stator core, and stator core is provided with stator winding; Front end housing is provided with the external rotor location bearing, and rear-end of spindle is the rotor splined shaft, and external rotor is located on main shaft by external rotor location bearing and rotor splined shaft, and by the rotor spline housing fastening it, external rotor is with synchronous rotary when main shaft rotates; The inboard of external rotor is provided with the external rotor magnetic poles array.
Described mainshaft rear bearing is the tapering bearing.
The magnetic pole mouth of described stator core is provided with rotor-position sensor.
Described front end housing is provided with bearing cap.
Described stator core is 36 groove 36 teeth, adopts multitudinous utmost point formula connection, altogether three-phase 24 utmost points.
Described external rotor magnetic poles array adopts 96 square magnetic shoes to combine, and each half quantity of N, S distributes by four coil arrays, and 24, every circle is provided with hollow aluminum pipe between adjacent magnetic shoe.
Good effect of the present utility model is as follows: the slow-speed of revolution of the present utility model is 300 rev/mins, and high pulling torque is 500 Ns of rice, and wide speed regulating range is 10-300 rev/min, has satisfied the use of low rotation speed large torque occasion; The utility model adopts the technical scheme of brushless direct-current, not only can realize energy-efficient wide velocity modulation joint, and the staring torque more much bigger than alternating current machine can also be provided; The utility model is designed to external rotor electric machine, because the arm of force of external rotor is more much bigger than internal rotor, so greatly improved moment of torsion; The utility model has adopted the heat radiation of internal stator water-cooling project, effectively reduces the temperature rise that winding is in operation, and internal resistance is also just no longer risen, and has improved electric efficiency; Stator core adopts multitudinous utmost point formula one tooth one utmost point connection, has utilized to greatest extent material, and technique is more simplified; Owing to adopting four coil arrays to distribute, more reliable than general single-row distributional stability.
Description of drawings
Fig. 1 is the utility model structure chart.
Fig. 2 is the external rotor sectional drawing.
In figure:
1 motor housing 2 penetrates screw 3 front end housings
4 rear end cap 5 main spindle front bearing 6 mainshaft rear bearings
7 main shaft 8 water collar 9 stator rear bearings
10 cooling water inlet 11 coolant outlet 12 stator cores
13 stator winding 14 external rotor location bearing 15 rotor splined shafts
16 external rotor 17 rotor spline housing 18 external rotor magnetic poles arrays
19 rotor-position sensor 20 bearing cap 21 square magnetic shoes
22 aluminum pipes.
Embodiment
As shown in Figure 1, described external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor, comprise motor housing 1, motor housing 1 is connected with front end housing 3 and rear end cap 4 by penetrating screw 2, front end housing 3 is provided with main spindle front bearing 5, rear end cap 4 is provided with mainshaft rear bearing 6, and main spindle front bearing 5 and mainshaft rear bearing 6 are provided with main shaft 7; On main shaft 7, cover has water collar 8, the front end of water collar 8 is fixed on front end housing 3, the rear end of water collar 8 is located on main shaft 7 by stator rear bearings 9, and water collar 8 keeps static when main shaft 7 rotation, and water collar 8 is provided with cooling water inlet 10 and coolant outlet 11; The outside of water collar 8 is provided with stator core 12, and stator core 12 is provided with stator winding 13; Front end housing 3 is provided with external rotor location bearing 14, main shaft 7 rear ends are rotor splined shaft 15, external rotor 16 is located on main shaft 7 by external rotor location bearing 14 and rotor splined shaft 15, and by rotor spline housing 17 fastening it, external rotor 16 is with synchronous rotary when main shaft 7 rotation; The inboard of external rotor 16 is provided with external rotor magnetic poles array 18.
Described mainshaft rear bearing 6 is the tapering bearing.
The magnetic pole mouth of described stator core 12 is provided with rotor-position sensor 19.
Described front end housing 3 is provided with bearing cap 20.
Described stator core 12 is 36 groove 36 teeth, adopts multitudinous utmost point formula connection, altogether three-phase 24 utmost points.
As shown in Figure 2, described external rotor magnetic poles array 18 adopts 96 square magnetic shoes 21 to combine, and each half quantity of N, S distributes by four coil arrays, and 24, every circle is provided with hollow aluminum pipe 22 between adjacent magnetic shoe.
The slow-speed of revolution of the present utility model is 300 rev/mins, and high pulling torque is 500 Ns of rice, and wide speed regulating range is 10-300 rev/min, has satisfied the use of low rotation speed large torque occasion.
Claims (6)
1. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor, comprise motor housing, motor housing is connected with front end housing and rear end cap by penetrating screw, and front end housing is provided with main spindle front bearing, rear end cap is provided with mainshaft rear bearing, and main spindle front bearing and mainshaft rear bearing are provided with main shaft; It is characterized in that: on main shaft, cover has water collar, and the front end of water collar is fixed on front end housing, and the rear end of water collar is located on main shaft by the stator rear bearings, and water collar keeps static when main shaft rotates, and water collar is provided with cooling water inlet and coolant outlet; The outside of water collar is provided with stator core, and stator core is provided with stator winding; Front end housing is provided with the external rotor location bearing, and rear-end of spindle is the rotor splined shaft, and external rotor is located on main shaft by external rotor location bearing and rotor splined shaft, and by the rotor spline housing fastening it, external rotor is with synchronous rotary when main shaft rotates; The inboard of external rotor is provided with the external rotor magnetic poles array.
2. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor according to claim 1, it is characterized in that: described mainshaft rear bearing is the tapering bearing.
3. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor according to claim 1, it is characterized in that: the magnetic pole mouth of described stator core is provided with rotor-position sensor.
4. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor according to claim 1, it is characterized in that: described front end housing is provided with bearing cap.
5. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor according to claim 1, it is characterized in that: described stator core is 36 groove 36 teeth, adopts multitudinous utmost point formula connection, altogether three-phase 24 utmost points.
6. external-rotor-type water-cooled low rotation speed large torque DC Brushless Motor according to claim 1, it is characterized in that: described external rotor magnetic poles array, adopt 96 square magnetic shoes to combine, each half quantity of N, S, distribute by four coil arrays, 24, every circle is provided with hollow aluminum pipe between adjacent magnetic shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004291 CN203014629U (en) | 2013-01-06 | 2013-01-06 | Outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004291 CN203014629U (en) | 2013-01-06 | 2013-01-06 | Outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014629U true CN203014629U (en) | 2013-06-19 |
Family
ID=48606185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004291 Expired - Fee Related CN203014629U (en) | 2013-01-06 | 2013-01-06 | Outer rotor-type water-cooling low-rotation speed large-torque direct-current brushless motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203014629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026449A (en) * | 2016-05-18 | 2016-10-12 | 中车株洲电机有限公司 | External rotor motor cooling device |
| CN107032055A (en) * | 2017-05-23 | 2017-08-11 | 唐山溢洋电气科技有限公司 | Built-in type low-speed big high-power explosion-proof motorized pulleys |
| CN111778154A (en) * | 2020-06-12 | 2020-10-16 | 北京中鼎恒业科技股份有限公司 | Control system of intelligent motor for fermentation tank stirring power |
-
2013
- 2013-01-06 CN CN 201320004291 patent/CN203014629U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026449A (en) * | 2016-05-18 | 2016-10-12 | 中车株洲电机有限公司 | External rotor motor cooling device |
| CN106026449B (en) * | 2016-05-18 | 2018-05-08 | 中车株洲电机有限公司 | External rotor electric machine cooling device |
| CN107032055A (en) * | 2017-05-23 | 2017-08-11 | 唐山溢洋电气科技有限公司 | Built-in type low-speed big high-power explosion-proof motorized pulleys |
| CN111778154A (en) * | 2020-06-12 | 2020-10-16 | 北京中鼎恒业科技股份有限公司 | Control system of intelligent motor for fermentation tank stirring power |
| CN111778154B (en) * | 2020-06-12 | 2021-04-02 | 北京中鼎恒业科技股份有限公司 | Control system of intelligent motor for fermentation tank stirring power |
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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: 20130619 Termination date: 20140106 |