CN214256043U - Direct-current brushless motor with built-in cooling fan - Google Patents
Direct-current brushless motor with built-in cooling fan Download PDFInfo
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- CN214256043U CN214256043U CN202120413338.5U CN202120413338U CN214256043U CN 214256043 U CN214256043 U CN 214256043U CN 202120413338 U CN202120413338 U CN 202120413338U CN 214256043 U CN214256043 U CN 214256043U
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Abstract
The utility model relates to a built-in radiator fan's direct current brushless motor increases built-in fan inside the motor, cooperates outside major diameter fan, rotor assembly, rotor shaft, front end housing and rear end cap simultaneously, the rotor shaft on be equipped with built-in fan, the front end housing is installed on the rotor shaft, built-in fan is installed on the rotor shaft, rotor assembly installs on the rotor shaft, built-in fan rotates with the rotor shaft is synchronous, built-in fan sets up in the inboard and rotor assembly terminal surface tight contact of front end housing, the rear end housing outside is equipped with outside fan, the outside of outside fan is equipped with the fan casing. The utility model has the advantages that: adopt built-in radiator fan, can solve the motor at the during operation, the inside heat of motor is in time and quick conduct away from the inside, improves the inside operational environment of motor to improve motor work efficiency and life.
Description
Technical Field
The utility model relates to a built-in radiator fan's direct current brushless motor belongs to motor technical field.
Background
At present, the direct current brushless motor is widely applied to the electric tricycle, and the electric tricycle is complex in use environment and serious in overload. And the brushless DC motor plays the effect of transmission kinetic energy as the electric tricycle essential element, requires highly to the motor performance, and the motor is at high strength during operation, and if the inside heat of its motor can't in time derive, can influence hall transmission signal, can burn the meeting coil when serious, makes the unable work of motor.
Disclosure of Invention
In order to overcome above-mentioned prior art's weak point, the utility model provides a built-in radiator fan's brushless DC motor increases built-in fan inside the motor, cooperates outside major diameter fan, rotor assembly, rotor shaft, front end housing and rear end cap simultaneously, the rotor shaft on be equipped with built-in fan, the front end cap is installed on the rotor shaft, built-in fan is installed on the rotor shaft, the rotor assembly is installed on the rotor shaft, built-in fan rotates with the rotor shaft is synchronous, built-in fan sets up at the inboard and rotor assembly terminal surface close contact of front end cap, the rear end cap outside is equipped with outside fan, the outside of outside fan is equipped with the fan casing.
The inner diameter of a fan blade hole of the built-in fan is excessively matched with the rotor shaft, and the diameter of the fan blade of the built-in fan is smaller than the outer diameter of the rotor.
The stator assembly is assembled with the assembled front end cover, the rotor shaft, the rotor assembly and the built-in fan and fixed through the hexagon socket head cap screws.
The utility model has the advantages that: adopt built-in radiator fan, can solve the motor at the during operation, the inside heat of motor is in time and quick conduct away from the inside, improves the inside operational environment of motor to improve motor work efficiency and life.
Drawings
The invention will be further explained below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a sectional view of the built-in fan.
In the figure: 1. a stator assembly; 2. a rotor assembly; 3. a built-in fan; 4. a rotor shaft; 5. a front end cover; 6. a rear end cap; 7. a socket head cap screw; 8. a fan; 9. a fan cover.
Detailed Description
As shown in fig. 1 and 2, the dc brushless motor with a built-in heat dissipation fan is characterized in that: including stator assembly 1, rotor assembly 2, rotor shaft 4, front end housing 5 and rear end housing 6, rotor shaft 4 on be equipped with built-in fan 3, front end housing 5 installs on rotor shaft 4, built-in fan 3 installs on rotor shaft 4, rotor assembly 2 installs on rotor shaft 4, built-in fan 3 and rotor shaft 4 synchronous revolution, built-in fan 3 sets up at 5 inboard and 2 terminal surface tight contacts of rotor assembly of front end housing, the 6 outsides of rear end housing are equipped with outside fan 8, the outside of outside fan 8 is equipped with fan casing 9.
The inner diameter of a fan blade hole of the built-in fan 3 is excessively matched with the rotor shaft 4, and the diameter of the fan blade of the built-in fan 3 is smaller than the outer diameter of the rotor.
The stator assembly 1 is assembled with the assembled front end cover 5, the rotor shaft 4, the rotor assembly 2 and the built-in fan 3 and fixed through the hexagon socket head cap screws 7.
Claims (3)
1. The utility model provides a built-in radiator fan's direct current brushless motor which characterized in that: including stator assembly (1), rotor assembly (2), rotor shaft (4), front end housing (5) and rear end cap (6), rotor shaft (4) on be equipped with built-in fan (3), install on rotor shaft (4) front end housing (5), install on rotor shaft (4) built-in fan (3), install on rotor shaft (4) rotor assembly (2), built-in fan (3) and rotor shaft (4) synchronous revolution, built-in fan (3) set up in front end housing (5) inboard and rotor assembly (2) terminal surface tight contact, rear end housing (6) outside is equipped with outside fan (8), the outside of outside fan (8) is equipped with fan guard (9).
2. The dc brushless motor with a built-in heat dissipation fan according to claim 1, wherein: the inner diameter of a fan blade hole of the built-in fan (3) is excessively matched with the rotor shaft (4), and the diameter of the fan blade of the built-in fan (3) is smaller than the outer diameter of the rotor.
3. The dc brushless motor with a built-in heat dissipation fan according to claim 1, wherein: the stator assembly (1) is assembled with the assembled front end cover (5), the rotor shaft (4), the rotor assembly (2) and the built-in fan (3) and fixed through the hexagon socket head cap screws (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120413338.5U CN214256043U (en) | 2021-02-25 | 2021-02-25 | Direct-current brushless motor with built-in cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120413338.5U CN214256043U (en) | 2021-02-25 | 2021-02-25 | Direct-current brushless motor with built-in cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214256043U true CN214256043U (en) | 2021-09-21 |
Family
ID=77727134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120413338.5U Active CN214256043U (en) | 2021-02-25 | 2021-02-25 | Direct-current brushless motor with built-in cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214256043U (en) |
-
2021
- 2021-02-25 CN CN202120413338.5U patent/CN214256043U/en active Active
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