CN208046338U - A kind of helicopter high power density brshless DC motor - Google Patents
A kind of helicopter high power density brshless DC motor Download PDFInfo
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- CN208046338U CN208046338U CN201820153016.XU CN201820153016U CN208046338U CN 208046338 U CN208046338 U CN 208046338U CN 201820153016 U CN201820153016 U CN 201820153016U CN 208046338 U CN208046338 U CN 208046338U
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- punching
- heat
- positioning protrusion
- brshless
- high power
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Abstract
The utility model is related to a kind of helicopter high power density brshless DC motors, including casing, rotor and stator are provided in casing, the both ends of casing pass through end cap seal, stator rotor includes iron core and armature winding, there are multiple punchings in iron core, multiple positioning protrusion and heat bulge positioned at the same side are provided in punching, the other side of positioning protrusion and heat bulge is respectively corresponding location dimples and heat dissipation pit, the positioning protrusion of adjacent punching fits, the heat bulge of adjacent punching is not bonded and forms heat dissipation cavity, the medium position of heat bulge is provided with through-hole, the through-hole of multiple heat bulges forms vent passages, it is tiltedly installed with radiator shutter in heat dissipation pit, radiator shutter also is located in heat dissipation cavity.The advantageous effect that the utility model reaches is：Simple in structure, spontaneous heat dissipation, thermal diffusivity are good.
Description
Technical field
The utility model is related to technical field of motors, especially a kind of helicopter high power density brushless dc
Machine.
Background technology
The actuator assembly that brshless DC motor is made of motor body and electronic component is a kind of this typical several points
Integration product.Countless direct current generators refer to the direct current generator of brushless and commutator.
There are commutator, the end of a thread of armature rotor winding to access in commutator, inlayed in stator on the rotor of common DC motor
There are permanent magnet, brush to be fixed on stator.It relies on brush and contacts the electricity for thering is brush to be transmitted to rotation source current with commutator
In pivot winding.
Gradual accumulate of abrasion between commutator and brush and abrasion powder will lossless commutator, it is necessary to periodic cleaning
And its brush is replaced, the electromagnetic wave that commutation spark generates can interfere other neighbouring electronic equipments, therefore brushed DC motor
Short life has electromagnetic wave generation.
Between the stator and rotor of brshless DC motor in addition to bearing, without other contact wear components, opened by electronic power
It closes and controls the switching of each phase winding electric current and flow direction, i.e. electronic commutation in electronics armature respectively, therefore brshless DC motor is excellent
Point is non-maintaining, long lifespan and does not generate electromagnetism clutter.But the rotor of high-power small size motor, it is high energy product rare earth
Permanent magnet is constituted, and the strong magnet rotor of more magnetic poles generates serious magnetic hysteresis eddy-current loss, iron loss in high rotating speed in stator core
Make the motor feels hot, efficiency reduce.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts provides simple in structure, the spontaneous heat dissipation of one kind, heat dissipation
The good helicopter high power density brshless DC motor of property.
The purpose of this utility model is achieved through the following technical solutions：It is straight that a kind of helicopter high power density is brushless
Galvanic electricity machine, including casing are provided with rotor and stator in casing, the both ends of casing by end cap seal, rotor include iron core and
Armature winding has multiple punchings in iron core, and multiple positioning protrusion positioned at the same side are provided in the punching and are radiated convex
It rises, the other side of positioning protrusion and heat bulge is respectively corresponding location dimples and heat dissipation pit, the convex of adjacent punching
It rises and fits, the heat bulge of adjacent punching is not bonded and is formed heat dissipation cavity, and the medium position of heat bulge is provided with through-hole, multiple
The through-hole of heat bulge forms vent passages, is tiltedly installed with radiator shutter in the pit that radiates, radiator shutter also is located at heat dissipation cavity
In；
The heat bulge is rounded, has multiple radiator shutters in the pit that radiates, and radiator shutter is rushing in the pit that radiates
Piece in the radial direction close to outer end, the radial direction of radiator shutter and punching has angle, and radiator shutter and the vertical of punching have
Angle.
The positioning protrusion is rectangular, and chamfering is provided at the seamed edge of positioning protrusion.
The surface roller coating of the punching has the first insulating layer, the outer vacuum of the first insulating layer to be coated with second insulating layer.
The positioning protrusion and heat bulge is evenly distributed in punching, and the height of positioning protrusion is higher than heat bulge
Degree is big.
The number of the positioning protrusion and heat bulge is three multiple.
Without armature winding at the positioning protrusion and heat bulge position.
For the rotor in rotation, radiator shutter generates radiating airflow, the direction of radiating airflow in the same punching
To be flowed from heat dissipation pit to heat bulge.
Be provided with multiple radiating grooves in the surrounding position punching of the heat bulge, the head and the tail both ends of radiating groove with heat dissipation
Chamber is connected, and the head end of radiating groove is big notch end, and the tail end of radiating groove is small-rabbet end.
The utility model has the following advantages：By positioning protrusion, ensure it is compact-sized, to ensure between heat bulge
Position, radiator shutter then makes rotor in rotation be to generate the air-flow of heat dissipation, the air-flow of heat dissipation from the through-hole of heat bulge it
Between flow, to take away heat, and the setting of radiating groove is further same by the heat apart from heat bulge position farther out
It takes away, the small setting of the big tail end of radiating groove head end is easy for air-flow and flows wherein, realizes spontaneous heat dissipation and simple in structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of punching；
Fig. 2 is the enlarged drawing of A-A in Fig. 1；
In figure：1- punchings, 2- positioning protrusion, 3- heat bulges, 4- radiator shutters, 5- radiating grooves.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
As depicted in figs. 1 and 2, a kind of helicopter high power density brshless DC motor, including casing are set in casing
It is equipped with rotor and stator, by end cap seal, rotor includes iron core and armature winding, there are multiple punchings in iron core at the both ends of casing
1, multiple positioning protrusion 2 and heat bulge 3 positioned at the same side, positioning protrusion 2 and heat bulge are provided in the punching 1
3 other side is respectively corresponding location dimples and heat dissipation pit, and the positioning protrusion 2 of adjacent punching 1 fits, adjacent punching 1
Heat bulge 3 be not bonded and formed heat dissipation cavity, the medium position of heat bulge 3 is provided with through-hole, the through-hole of multiple heat bulges 3
Vent passages are formed, are tiltedly installed with radiator shutter 4 in the pit that radiates, radiator shutter 4 also is located in heat dissipation cavity.Positioning protrusion 2
It realizes positioning, allows the through-hole in heat bulge 3 can be corresponding.
Further, the heat bulge 3 is rounded, has multiple radiator shutters 4 in the pit that radiates, and is dissipated in the pit that radiates
For hot blade 4 in punching 1 in the radial direction close to outer end, the radial direction of radiator shutter 4 and punching 1 has an angle, radiator shutter 4 with
The vertical of punching 1 has angle.Convenient for generating air-flow.
In the present embodiment, the positioning protrusion 2 is rectangular, and chamfering is provided at the seamed edge of positioning protrusion 2, convenient for fixed
Position.Positioning protrusion 2 and heat bulge 3 are evenly distributed in punching 1, and the height of positioning protrusion 2 is bigger than the height of heat bulge 3.
The surface roller coating of the punching 1 has the first insulating layer, the outer vacuum of the first insulating layer to be coated with second insulating layer.
In the present embodiment, the number of the positioning protrusion 2 and heat bulge 3 is three multiple.Positioning protrusion 2 and dissipate
Without armature winding at 3 positions of hot protrusion, avoid generating obstruction to air-flow.
In the present embodiment, for the rotor in rotation, radiator shutter 4 generates radiating airflow, is dissipated in the same punching 1
The direction of thermal current is to be flowed from heat dissipation pit to heat bulge 3.This flow direction can allow most air-flow to pass through, enhancing
Heat dissipation, if reversely, fraction air-flow can only be allowed to pass through.
In the present embodiment, multiple radiating grooves 5 are provided in the surrounding position punching 1 of the heat bulge 3, radiating groove 5
Head and the tail both ends are connected with heat dissipation cavity, and the head end of radiating groove 5 is big notch end, and the tail end of radiating groove 5 is small-rabbet end, heat dissipation
The inner end radial in punching 1 of slot 5.
Claims (8)
1. a kind of helicopter high power density brshless DC motor, including casing, rotor and stator, machine are provided in casing
By end cap seal, rotor includes iron core and armature winding, there is multiple punchings in iron core at the both ends of shell（1）, it is characterised in that：Institute
The punching stated（1）On be provided with multiple positioning protrusion positioned at the same side（2）And heat bulge（3）, positioning protrusion（2）And heat dissipation
Protrusion（3）The other side be respectively corresponding location dimples and heat dissipation pit, adjacent punching（1）Positioning protrusion（2）It fits,
Adjacent punching（1）Heat bulge（3）Heat dissipation cavity, heat bulge are not bonded and formed（3）Medium position be provided with through-hole, it is multiple
Heat bulge（3）Through-hole formed vent passages, radiate pit in be tiltedly installed with radiator shutter（4）, radiator shutter（4）Also position
In heat dissipation cavity；
The heat bulge（3）It is rounded, there are multiple radiator shutters in the pit that radiates（4）, radiate pit in radiator shutter（4）
In punching（1）In the radial direction close to outer end, radiator shutter（4）With punching（1）Radial direction have angle, radiator shutter（4）
With punching（1）It is vertical have angle.
2. a kind of helicopter high power density brshless DC motor according to claim 1, it is characterised in that：It is described
Positioning protrusion（2）It is rectangular, positioning protrusion（2）Seamed edge at be provided with chamfering.
3. a kind of helicopter high power density brshless DC motor according to claim 1, it is characterised in that：It is described
Punching（1）Surface roller coating have the first insulating layer, the outer vacuum of the first insulating layer is coated with second insulating layer.
4. a kind of helicopter high power density brshless DC motor according to claim 1, it is characterised in that：It is described
Positioning protrusion（2）And heat bulge（3）It is evenly distributed on punching（1）On, positioning protrusion（2）Height compare heat bulge（3）
Height it is big.
5. a kind of helicopter high power density brshless DC motor according to claim 1, it is characterised in that：It is described
Positioning protrusion（2）And heat bulge（3）Number be three multiple.
6. a kind of helicopter high power density brshless DC motor according to claim 5, it is characterised in that：It is described
Positioning protrusion（2）And heat bulge（3）Without armature winding at position.
7. a kind of helicopter high power density brshless DC motor according to claim 1, it is characterised in that：It is described
Rotor rotation when, radiator shutter（4）Radiating airflow is generated, in the same punching（1）The direction of upper radiating airflow is from scattered
Hot pit is to heat bulge（3）Flowing.
8. a kind of helicopter high power density brshless DC motor according to claim 7, it is characterised in that：It is described
Heat bulge（3）The punching of surrounding position（1）On be provided with multiple radiating grooves（5）, radiating groove（5）Head and the tail both ends with heat dissipation
Chamber is connected, radiating groove（5）Head end be big notch end, radiating groove（5）Tail end be small-rabbet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153016.XU CN208046338U (en) | 2018-01-30 | 2018-01-30 | A kind of helicopter high power density brshless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153016.XU CN208046338U (en) | 2018-01-30 | 2018-01-30 | A kind of helicopter high power density brshless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208046338U true CN208046338U (en) | 2018-11-02 |
Family
ID=63954783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820153016.XU Active CN208046338U (en) | 2018-01-30 | 2018-01-30 | A kind of helicopter high power density brshless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208046338U (en) |
-
2018
- 2018-01-30 CN CN201820153016.XU patent/CN208046338U/en active Active
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