CN207251418U - Motor - Google Patents
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- CN207251418U CN207251418U CN201721095894.2U CN201721095894U CN207251418U CN 207251418 U CN207251418 U CN 207251418U CN 201721095894 U CN201721095894 U CN 201721095894U CN 207251418 U CN207251418 U CN 207251418U
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Abstract
The utility model provides a kind of outer rotor motor, it has：Stationary part with stator；And it is configured with the rotating part of magnet in the radial outside of said stator.Rotating part has the cap of one end opposed in the axial direction with least a portion of stator and that covering is axial.Cap forms air entry in multiple intercostals of radial configuration.First face in the front of the direction of rotation of rib has the first inclined plane.The back sweep of exhaust lateral direction of rotation of first inclined plane from above-mentioned air entry side towards the axial other end.
Description
Technical field
It the utility model is related to rotor configuration in the outer rotor motor of the outer circumferential side of stator.
Background technology
At present, by rotor configuration in the outer rotor motor of the outer circumferential side of stator, it is known to rotor set air-breathing
Mouthful, utilize the construction that air is obtained inside the rotation steering motor of motor.Thereby, it is possible to cool down the inside of motor.Chinese patent Shen
Motor disclosed in please disclosing No. 103762768 is outer rotor motor, by rotor configuration in the outer circumferential side of stator.Rotor includes
Upper cover, ventilation hole is set in upper cover.
In the motor of said structure, when rotating rotor, guided to stator side from the air accessed by ventilation hole.
Utility model content
But according to above-mentioned existing motor, the face in front of the direction of rotation of the upper cover of ventilation hole is formed relative to rotation
It is vertical to turn direction, therefore during rotor rotation, has collided the part of air in the face in the front of the direction of rotation of upper cover not from logical
Air holes is flowed to inside motor, and towards the outside of motor.Therefore, the air obtained from ventilation hole is reduced, and there are the cooling of motor
The problem of efficiency reduces.
The purpose of this utility model is to provide a kind of motor that can improve cooling effectiveness.
The exemplary scheme 1 of the utility model is a kind of motor, is outer rotor motor, and said motor has：
Stationary part with stator；And
The rotating part of magnet is configured with the radial outside of said stator,
Said motor is characterized in that,
Above-mentioned rotating part has the lid of one end opposed in the axial direction with least a portion of said stator and that covering is axial
Portion,
Above-mentioned cap forms air entry in multiple intercostals of radial configuration,
First face in the front of the direction of rotation of above-mentioned rib has the row from above-mentioned air entry side towards the axial other end
First inclined plane of the gas side to the back sweep of direction of rotation.
Motor of the scheme 2 according to scheme 1, it is characterised in that
Above-mentioned first inclined plane is formed as curve on the section perpendicular to radial direction of above-mentioned rib.
Motor of the scheme 3 according to scheme 1 or 2, it is characterised in that
Above-mentioned first face has flat on the section perpendicular to radial direction of above-mentioned rib in the exhaust side of above-mentioned first inclined plane
Row is in axial first straight line portion.
Motor of the scheme 4 according to scheme 1 or 2, it is characterised in that
Above-mentioned first face is in the convex bending in rear on axial section to the direction of rotation of above-mentioned rib.
Motor of the scheme 5 according to scheme 4, it is characterised in that
Said stator has：
The cricoid core back of the body；
Circumferential direction is configured at, and from above-mentioned core facing away from the multiple teeth extended to above-mentioned magnet；And
Multiple coils of each of above-mentioned tooth are wound in,
Said stator has the opening portion connected with above-mentioned air entry between above-mentioned coil,
To above-mentioned first face direction of rotation rear become convex apex, in the axial direction with above-mentioned opening portion pair
Put.
Motor of the scheme 6 according to scheme 1 or 2, it is characterised in that
Second face at the rear of the direction of rotation of above-mentioned rib, which has from above-mentioned air entry side, gets over towards the axial other end
Exhaust side gets over inclined second inclined plane in front to direction of rotation.
Motor of the scheme 7 according to scheme 6, it is characterised in that
Above-mentioned second inclined plane is formed as curve on the section perpendicular to radial direction of above-mentioned rib.
Motor of the scheme 8 according to scheme 6, it is characterised in that
Above-mentioned second face has flat on the section perpendicular to radial direction of above-mentioned rib in the exhaust side of above-mentioned second inclined plane
Row is in axial second straight line portion.
Motor of the scheme 9 according to scheme 6, it is characterised in that
Above-mentioned second face is in the convex bending in front on axial section to the direction of rotation of above-mentioned rib.
Motor of the scheme 10 according to scheme 9, it is characterised in that
Said stator has：
The cricoid core back of the body；
Circumferential direction is configured at, and from above-mentioned core facing away from the multiple teeth extended to above-mentioned magnet；And
Multiple coils of each of above-mentioned tooth are wound in,
Said stator has the opening portion connected with above-mentioned air entry between above-mentioned coil,
To above-mentioned second face direction of rotation front become convex apex, in the axial direction with above-mentioned opening portion pair
Put.
Motor of the scheme 11 according to scheme 1 or 2, it is characterised in that
The circumferential length of the outer circumference end of above-mentioned rib is bigger than the circumferential length at inner circumferential end.
Motor of the scheme 12 according to scheme 1 or 2, it is characterised in that
The thickness of the thickness ratio outer circumference end at the inner circumferential end of above-mentioned rib is big.
According to exemplary the utility model, using the teaching of the invention it is possible to provide the motor of cooling effectiveness can be improved.
By the detailed description of following the utility model preferred embodiment, referring to the drawings, can be more clearly understood that this
Above-mentioned and other feature, key element, step, feature and the advantage of utility model.
Brief description of the drawings
Fig. 1 is the stereogram of the motor of the first embodiment of the utility model.
Fig. 2 is the longitudinal section of the motor of the first embodiment of the utility model.
Fig. 3 is the top view of the motor of the first embodiment of the utility model.
Fig. 4 is the sectional view perpendicular to radial direction of the rib of the motor of the first embodiment of the utility model.
Fig. 5 is the top view of the motor of the first variation of the first embodiment of the utility model.
Fig. 6 is the section view perpendicular to radial direction of the rib of the motor of the second variation of the first embodiment of the utility model
Figure.
Fig. 7 is the section view perpendicular to radial direction of the rib of the motor of the 3rd variation of the first embodiment of the utility model
Figure.
Fig. 8 is the stereogram of the motor of the second embodiment of the utility model.
Fig. 9 is the top view of the motor of the second embodiment of the utility model.
Figure 10 is the sectional view perpendicular to radial direction of the rib of the motor of the second embodiment of the utility model.
Figure 11 is the top view of the motor of the first variation of the second embodiment of the utility model.
Figure 12 is the sectional view perpendicular to radial direction of the motor of the second variation of the second embodiment of the utility model.
Embodiment
Hereinafter, on one side referring to the drawings, while being described in detail to the exemplary embodiment of the utility model.This
Outside, in this specification, the direction parallel with the central shaft C of motor 1 is known as " axial direction ", will be orthogonal with the central shaft C of motor 1
Direction is known as " radial direction ", will be known as " circumferential direction " along the direction of the circular arc centered on the central shaft C of motor 1.In addition, in this theory
In bright book, above-below direction will be axially set to, relative to stator 4,10 side of cap is set to, so that shape, position to each several part
The relation of putting illustrates.But and during use of the definition to limit the motor 1 of the utility model of the non-used above-below direction
The intention of direction.
＜ first embodiments ＞
(overall structure of motor)
Hereinafter, the motor of the illustrative embodiment of the utility model is illustrated.Fig. 1~Fig. 3 represents respectively
Stereogram, longitudinal section and the top view of the motor of one embodiment.In addition, Fig. 3 illustrate only a part of coil 42.Motor
1 is outer rotor motor.Motor 1 is for example equipped on miniature self-service aviation machine (not shown), rotates rotary wings.In addition, motor 1
It can be used for the purposes beyond unmanned aviation machine.For example, motor 1 can be equipped on the Transport Machinery such as automobile, train, OA is set
Standby, Medical Devices, instrument, industrial large scale equipment etc., make the various driving forces of generation.
Motor 1 has stationary part 2 and rotating part 3.Stationary part 2 has stator 4, stent 5 and upper and lower axle bearing portion 6.It is static
Rack of unmanned aviation machine etc. is fixed in portion 2 via stent 5.Rotating part 3 has axis 7, rotor 8 and cap 10.3 energy of rotating part
It is enough to be rotated centered on central shaft C on direction of rotation R1 (viewed from above in present embodiment, clockwise).
Stator 4 is configured at the radially inner side of rotor 8.Stator 4 has stator core 41 and multiple coils 42.Stator core 41
The stacked steel plate formed by laminated electromagnetic steel plate in the axial direction is formed.Stator core has core back of the body 41a and multiple tooth 41b.
Core back of the body 41a is formed as the ring-type extended in the axial direction.Multiple tooth 41b are from the outer circumferential surface of core back of the body 41a towards magnet 82
Extended radially in radial outside.Thus, multiple tooth 41b are configured in the circumferential.Coiled electrical conductor is distinguished around each tooth 41b
And form coil 42.In the circumferential formed with the opening portion 45 penetrated through in the axial direction between adjacent coil 42.
That is, stator 4 has：Cricoid core carries on the back 41a；It is configured at circumferential and extends from core back of the body 41a towards magnet 82 multiple
Tooth 41b；And multiple coils 42 for forming of each winding in tooth 41b.Stator 4 has and air-breathing described later between coil 42
The opening portions 45 of the connection of mouth 12.
Lead 20 is exported from coil 42, one end of lead 20 is connected to power supply or the drive circuit to 1 supply electric power of motor.
Thus, to 42 supply electric power of coil.
Stent 5 is formed as ring-type, and is configured at the lower section of stator 4, covers the lower part of stator 4.In the peripheral end of stent 5
Between the peripheral end of rotor 8, in the axial direction formed with defined interval G.
The bearing portion 6 of top is configured at the inner side of core back of the body 41a, and the bearing portion 6 of lower section is configured at the central portion of stent 5.On
Bearing portions 6 are made of ball bearing, can pivotally support axis 7.In addition, upper and lower axle bearing portion 6 can also substitute ball bearing
And the bearing of the other manner such as with sliding bearing.
Axis 7 extends in the axial direction, is rotated centered on central shaft C on the R1 of direction of rotation.The upper end of axis 7 is embedded in and is located at
The recess 10a of the inner side of cap 10 and fix.Rotary wings are fixed on the mounting portion 9 for the axial top for extending to cap 10.
In addition it is also possible to save mounting portion 9, axis 7 is projected to than stent 5 on the lower, rotation is installed in the bottom of axis 7
The wing.Alternatively, it is also possible to make axis 7 project to than stent 5 on the lower, rotary wings are installed in the bottom of mounting portion 9 and axis 7.
Rotor 8 is configured at the radial outside of stator 4, is rotated together with axis 7.Rotor 8 have cylindrical shape shell 81 and
Multiple magnet 82.Multiple magnet 82 are configured at the inner peripheral surface of shell 81.The face of the radially inner side of each magnet 82 and the footpath of each tooth 41b
End face laterally is opposed.The N poles magnetic pole strength and S poles magnetic pole strength of multiple magnet 82 are alternately arranged.Multiple magnet 82 are in the circumferential
Equally spaced arrange.
In addition it is also possible to substitute multiple magnet 82, and use a ringshaped magnet.As long as in this case, in magnet
Side face alternating magnetization N poles and S poles in the circumferential.Alternatively, it is also possible to the resin of magnetic powder be integrally formed magnet and
Shell.Alternatively, it is also possible to which magnet to be embedded in the inside of shell.
Axial one end (upper end) partes tegmentalis 10 of rotor 8 covers, and cap 10 links with axis 7.Cap 10 has in radiation
Multiple ribs 11 of shape configuration.In the present embodiment, cap 10 has four ribs 11.Rib 11 is shaped generally as in tower visibility
Fan.Rib 11 is equipped with the air entry 12 connected with the opening portion 45 of stator 4 between adjacent multiple ribs 11.
That is, motor 1 is with the outer rotor motor such as lower member：Stationary part 2 with stator 4；And in stator 4
Radial outside is configured with the rotating part 3 of magnet 82.Rotating part 3 has opposed in the axial direction with least a portion of stator 4 and covers
Cover the cap 10 of axial one end.Cap 10 forms air entry 12 between multiple ribs 11 of radial configuration.
The circumferential length W2 (with reference to Fig. 3) of the outer circumference end of rib 11 is bigger (with reference to Fig. 3) than the circumferential length W1 at inner circumferential end.
Thereby, it is possible to the size that one side substantially ensures that air entry 12, while ensuring the intensity of rib 11.
The first face 11a in the front of the direction of rotation R1 of rib 11 is on the section perpendicular to axial direction, to direction of rotation R1's
The convex bending in rear.The rear to direction of rotation R1 of first face 11a becomes the apex 117a of convex in the axial direction with determining
The opening portion 45 of son 4 is opposed.In addition, apex 117a on axial section, is being represented at a distance of the first face 11a's of link
The farthest region of the straight line of inner circumferential end and outer circumference end.
Fig. 4 shows the sectional view perpendicular to radial direction of rib 11.X-direction represents circumferential.Y-direction represents radially.Z-direction table
Show axial direction.The first face 11a in the front of the direction of rotation R1 of rib 11 has the first inclined plane 111a.First inclined plane 111a gets over court
Downwards, more to the back sweep of direction of rotation R1.In addition, as be described hereinafter, the air-flow when lower section of rib 11 becomes the rotation of rotating part 3
The exhaust side of S.That is, the first face 11a in the front of the direction of rotation R1 of rib 11 has from the another of 12 side of air entry direction axial direction
First inclined plane 111a of the back sweep of the lateral direction of rotation R1 of exhaust at end.
First inclined plane 111a is formed as curve rib 11 on the section of radial direction (Y-direction).In addition, the first face
11a has parallel with axial direction (Z-direction) on the section perpendicular to radial direction of rib 11 in the exhaust side of the first inclined plane 111a
First straight line portion 115a.
The second face 11b at the rear of the direction of rotation R1 of rib 11 parallel to axial plane by forming.Second face 11b is opposite
In direction of rotation, R1 is vertical.
(action of motor)
In the motor 1 of said structure, when via lead 20 to 42 supply electric power of coil, magnetic flux is produced in tooth 41b.
Then, using the effect of the magnetic flux between tooth 41b and magnet 82, circumferential torque is produced.Thus, rotating part 3 is relative to quiet
Stop 2 is rotated centered on central shaft C on the R1 of direction of rotation, starts the spinning movement of motor 1.
When rotating part is rotating on the R1 of direction of rotation, air and the first face 11a in the front of the direction of rotation R1 of rib 11
Collision.First face 11a has the first inclined plane 111a, therefore, as shown in figure 4, air-flow S is drawn along the first inclined plane 111a
It is directed at 4 side of stator (in Fig. 4, lower section).
The air to the lower section of air entry 12 is guided by between the opening portion 45 between coil 42 and magnet 82 and tooth 41b,
From clearance G (with reference to Fig. 1, Fig. 2) and arranged on stent 5 external exhaust gas from exhaust outlet (not shown) to motor 1.Can be by air-flow
S is smoothly guided to stator 4 along the first inclined plane 111a, therefore can improve the cooling effectiveness of motor 1.
First face 11a has first straight line portion 115a.Along first straight line portion 115a guiding air-flows S.Thereby, it is possible to towards axis
Air-flow S is smoothly guided to downside, can efficiency air-flow S is guided to stator 4 well.
First face 11a of rib 11 is convex curved to the rear of the direction of rotation R1 of rib 11 on axial section
It is bent.Thus, as shown in figure 3, can be when rotating part 3 be rotated by the air (air-flow S) of the periphery side of rib 11 and inner circumferential side
Assemble to the apex 117a of radial direction central portion.Therefore, air easily is obtained from air entry 12 to the inside of motor 1,
The cooling effectiveness of motor 1 can be further improved.
At this time, apex 117a is opposed with the opening portion 45 of stator 4 in the axial direction, therefore can intensively draw air-flow S
It is directed between coil 42.Therefore, it is possible to the fever of suppression coil 42.
The thickness T1 (with reference to Fig. 2) at the inner circumferential end of rib 11 is bigger (with reference to Fig. 2) than the thickness T2 of outer circumference end.Thus, rotating
When portion 3 rotates, the small air-flow S of the peripheral speed of central shaft C sides can be easily guided to 4 side of stator.On the other hand, rib 11 is outer
The peripheral speed of the air-flow S of all sides is bigger than central shaft C sides, therefore, also can be easily to fixed even if making thickness T2 smaller than thickness T1
Sub 4 sides obtain air-flow S.Moreover, thickness T2 can be made smaller than thickness T1, therefore it can realize the lightweight of motor 1.
When stopping power supply, the rotation of rotating part 3 stops.Thus, the spinning movement of motor 1 terminates.
In addition it is also possible to the rib 11 of the motor 1 of present embodiment is made into different shapes.
(first variation)
As shown in figure 5, can also the first face 11a of rib 11 bent on axial section.In this case, first
The front side for the being partially toward direction of rotation R1 extension of more outer than bending part side and inner circumferential side in the 11a of face.In addition it is also possible to only
The front side for the being partially toward direction of rotation R1 extension of side more outer than bending part.Even if the structure, can also be revolved in rotating part 3
By near the apex 117a of the air accumulation of the periphery side of rib 11 and inner circumferential side to radial direction central portion when turning.
(the second variation)
As shown in fig. 6, can also the first face 11a the first inclined plane 111a on the section perpendicular to radial direction of rib 11 shape
As straight line., also can be when making rotating part 3 rotated on the R1 of direction of rotation, along the first face 11a to rotor 8 even if the structure
Inner side (4 side of stator) smoothly guide air.
In this case, the first face 11a can also have first straight line portion 115a in the exhaust side of the first inclined plane 111a.
(the 3rd variation)
As shown in fig. 7, can also the second face 11b at rear of direction of rotation R1 of rib 11 get over towards the axial other end
Exhaust side (in figure, lower section) gets over the back sweep to direction of rotation R1.Thus, easily when rotating part 3 rotates, along the second face
11b guides the air-flow K along the upper surface of rib 11 to 4 side of stator.Therefore, it is possible to increase the air for flowing into 4 side of stator, further
Improve the cooling effectiveness of motor 1.
According to the present embodiment, the first face 11a in the front of the direction of rotation R1 of rib 11 has from 12 side direction of air entry
First inclined plane 111a of the back sweep of the lateral direction of rotation R1 of exhaust of the axial other end.Thus, when rotating part 3 is revolving
When turning to rotate on the R1 of direction, air and the first face 11a are collided, and air-flow S is smoothly guided to stator 4 along the first inclined plane 111a
Side (inside of motor 1).Therefore, it is possible to improve the cooling effectiveness of motor 1.
First inclined plane 111a is formed as curve on the section perpendicular to radial direction of rib 11.Thus, it is more suitable to 4 side of stator
Air-flow S is guided slidingly.Therefore, it is possible to further improve the cooling effectiveness of motor 1.
First face 11a has parallel on the section perpendicular to radial direction of rib 11 in the exhaust side of the first inclined plane 111a
In axial first straight line portion 115a., can thereby, it is possible to which air-flow S is guided along first straight line portion 115a towards axial downside
Efficiency well guides air-flow S to 4 side of stator.Therefore, it is possible to further improve the cooling effectiveness of motor 1.
It is further preferred that the first face 11a has with the first inclined plane 111a's on the section perpendicular to radial direction of rib 11
Exhaust side is continuous and parallel to axial first straight line portion 115a.Thus, along the first inclined plane 111a air-flow S more smoothly
Flowed into along first straight line portion 115a.
First face 11a on direction of rotation R1 from axial section to rib 11 the convex bending in rear.Thus,
Can be when rotating part 3 rotates, by the air (air-flow S) of the periphery side of rib 11 and inner circumferential side aggregation to radial direction central portion
Near apex 117a.Therefore, it is possible to easily obtain air from air entry 12 to the inside of motor 1, motor 1 is further improved
Cooling effectiveness.
Stator 4 has the opening portion 45 connected with air entry 12 between coil 42.First face 11a to direction of rotation R1's
The apex 117a that rear becomes convex is opposed with opening portion 45 in the axial direction.Thereby, it is possible to intensively guide air-flow S to line
Between circle 42.Therefore, it is possible to the fever of suppression coil 42.
The circumferential length W2 of the outer circumference end of rib 11 is bigger than the circumferential length W1 at inner circumferential end.It is abundant thereby, it is possible to one side
The size of air entry 12 is ensured, while ensuring the intensity of rib 11.
The thickness T1 at the inner circumferential end of rib 11 is bigger than the thickness T2 of outer circumference end.Thus, can be by when rotating part 3 rotates
The air-flow S that the peripheral speed of mandrel C sides is small is easily guided to 4 side of stator.On the other hand, the week of the air-flow S of the periphery side of rib 11
Speed is bigger than central shaft C sides, therefore, even if making thickness T2 smaller than thickness T1, also easily can obtain air-flow S to 4 side of stator.And
And thickness T2 can be made smaller than thickness T1, therefore can realize the lightweight of motor 1.
＜ second embodiments ＞
The second embodiment of the utility model is illustrated.Fig. 8 and Fig. 9 represents the motor of second embodiment respectively
Stereogram and top view.For convenience of description, pair part identical with the first embodiment shown in above-mentioned Fig. 1~Fig. 7
Mark identical symbol.In this second embodiment, the structure of the second face 11b of rib 11 is different from first embodiment.It is other
Part is identical with first embodiment.
The second face 11b at the rear of the direction of rotation R1 of rib 11 on axial section to before the R1 of direction of rotation
The convex bending in side.The front to direction of rotation R1 of second face 11b become convex apex 117b in the axial direction with stator 4
Opening portion 45 it is opposed.In addition, apex 117b is being represented at a distance of the inner circumferential for linking the second face 11b on axial section
The farthest region of the line of end and outer circumference end.
Figure 10 represents the sectional view perpendicular to radial direction of rib 11.The second face 11b tools at the rear of the direction of rotation R1 of rib 11
The exhaust side (in figure, lower section) for having the other end for getting over direction axial direction from 12 side of air entry is got over inclined to the front of direction of rotation R1
Second inclined plane 111b.Second inclined plane 111b is formed as curve on the section perpendicular to radial direction of rib 11.In addition, the second face
11b has straight parallel to axial second on the section perpendicular to radial direction of rib 11 in the exhaust side of the second inclined plane 111b
Line portion 115b.
Motor 1 is configured to, also can be in direction R2 (this opposite with direction of rotation R1 according to the signal via lead 20
It is viewed from above in embodiment, counterclockwise) on rotate.That is, motor 1 can be in direction of rotation R1 and opposite direction R2
Upper rotation.
In the motor 1 of said structure, when making rotating part 3 rotated on the R1 of direction of rotation, air-flow S is along the first face 11a
It is directed to the inner side (4 side of stator) of rotor 8.Thereby, it is possible to the cooling effect of motor 1 is improved in the same manner as first embodiment
Rate.
When rotating part 3 rotates on R2 in the opposite direction, air and the second face 11b at the rear of the direction of rotation R1 of rib 11
Collision.Second face 11b has the second inclined plane 111b, and therefore, as illustrated in fig. 10, air-flow S is drawn along the second inclined plane 111b
It is directed at 4 side of stator (in Figure 10, lower section).
The air to the lower section of air entry 12 is guided by between the opening portion 45 between coil 42 and magnet 82 and tooth 41b,
From the exhaust outlet of clearance G (with reference to Fig. 8) and stent 5 to the external exhaust gas of motor 1.Because can be along the second inclined plane 111b by gas
Stream S smoothly guide to stator 4, institute so as to raising motor 1 cooling effectiveness.
Second face 11b has a second straight line portion 115b, thus can by air-flow S along second straight line portion 115b towards axial direction under
Side guides.Thereby, it is possible to more swimmingly guide air-flow S to stator 4.
Second face 11b of rib 11 is convex curved to the front of the direction of rotation R1 of rib 11 on axial section
It is bent.Thus, can be by the periphery side of rib 11 and inner circumferential side as shown in figure 9, rotating part 3 is when R2 rotates round about
Air (air-flow S) is assembled to the apex 117b of radial direction central portion.Therefore, it is possible to easily from air entry 12 to motor
1 inside obtains air, further improves the cooling effectiveness of motor 1.
At this time, apex 117b is opposed with the opening portion 45 of stator 4 in the axial direction, therefore can intensively draw air-flow S
It is directed between coil 42.Therefore, it is possible to the fever of suppression coil 42.
In addition it is also possible to the rib 11 of the motor 1 of present embodiment is made into different shapes.
(first variation)
As shown in figure 11, can also the second face 11b of rib 11 bent on axial section.In this case, the
The rear side for being partially toward direction of rotation R1 of more outer than bending part side and inner circumferential side is (before opposite direction R2 in two face 11b
Square side) extension.In addition it is also possible to the rear side for the being partially toward direction of rotation R1 extension of side only more outer than bending part.Even if
The structure, also can be when R2 rotates rotating part 3 round about by the air accumulation of the periphery side of rib 11 and inner circumferential side
To the apex 117b of radial direction central portion.
(the second variation)
As shown in figure 12, can also rib 11 the first face 11a the first inclined plane 111a and the second face 11b second tilt
Face 111b is formed as straight line on the section perpendicular to radial direction of rib 11.Even if the structure, can also it make rotating part 3 opposite
When being rotated on the R2 of direction, along the second face 11b, air-flow is smoothly guided to the inner side (4 side of stator) of rotor 8 via air entry 12
S。
In addition it is also possible on the section perpendicular to radial direction of rib 11, the first face 11a and the second face 11b one it is square into
For curve, the opposing party is formed as straight line.
Present embodiment can obtain effect identical with first embodiment.In addition, after the direction of rotation R1 of rib 11
Second face 11b of side has the second inclined plane 111b.Second inclined plane 111b is got over towards the axial other end from 12 side of air entry
Exhaust side get over to direction of rotation R1 front tilt.Thus, when rotating part 3 rotates on R2 in the opposite direction, air and rib
The second face 11b collisions at the rear of 11 direction of rotation R1, air-flow S are smoothly guided to stator 4 along the second inclined plane 111b
Side.Therefore, it is possible to improve the cooling effectiveness of motor 1.
In the present embodiment, the first face 11a has the first inclined plane 111a.Second face 11b has the second inclined plane
111b.Thereby, it is possible to form the mainly cap of rotating motor and mainly in phase on the R1 of direction of rotation with same metal die
The cap of rotating motor on opposite direction R2.
Second inclined plane 111b is formed as curve on the section perpendicular to radial direction of rib 11.Thus, even in making rotation
In the case of portion 3 is rotating on R2 in the opposite direction, also more smoothly air can be guided to 4 side of stator.Therefore, it is possible to further
Improve the cooling effectiveness of motor 1.
Second face 11b has parallel on the section perpendicular to radial direction of rib 11 in the exhaust side of the second inclined plane 111b
In axial second straight line portion 115b.Thus, even in make rotating part 3 in the opposite direction on R2 it is rotating in the case of, also can
More smoothly air is guided to 4 side of stator.Therefore, it is possible to further improve the cooling effectiveness of motor 1.
In addition, more preferably the second face 11b has second straight line portion 115b.Second straight line portion 115b is in rib 11 perpendicular to footpath
To section on it is continuous with the exhaust side of the second inclined plane 111b, and parallel to axial direction.Thus, along the second inclined plane 111b's
Air-flow S is more smoothly along second straight line portion 115b, therefore more preferably.
Second face 11b on direction of rotation R1 from axial section to rib 11 the convex bending in front.Thus,
Even in rotating part 3 in the opposite direction on R2 it is rotating in the case of, also can be by the sky of the periphery side of rib 11 and inner circumferential side
Gas is gathered near the apex 117b of radial direction central portion.Therefore, it is possible to easily be obtained from air entry 12 to the inside of motor 1
Air, further improves the cooling effectiveness of motor 1.
The apex 117b that the front to direction of rotation R1 of second face 11b becomes convex is right with opening portion 45 in the axial direction
Put.Thus, even in make rotating part 3 in the opposite direction on R2 it is rotating in the case of, also air-flow S can be intensively guided to line
Between circle 42.Therefore, it is possible to the fever of suppression coil 42.
The utility model for example can be used in rotor configuration in the outer rotor motor of the outer circumferential side of stator.
Claims (12)
1. a kind of motor, is outer rotor motor, said motor has：
Stationary part with stator；And
The rotating part of magnet is configured with the radial outside of said stator,
Said motor is characterized in that,
Above-mentioned rotating part has the cap of one end opposed in the axial direction with least a portion of said stator and that covering is axial,
Above-mentioned cap forms air entry in multiple intercostals of radial configuration,
First face in the front of the direction of rotation of above-mentioned rib has the exhaust side from above-mentioned air entry side towards the axial other end
To the first inclined plane of the back sweep of direction of rotation.
2. motor according to claim 1, it is characterised in that
Above-mentioned first inclined plane is formed as curve on the section perpendicular to radial direction of above-mentioned rib.
3. motor according to claim 1 or 2, it is characterised in that
Above-mentioned first face on the section perpendicular to radial direction of above-mentioned rib, above-mentioned first inclined plane exhaust side have parallel to
Axial first straight line portion.
4. motor according to claim 1 or 2, it is characterised in that
Above-mentioned first face is in the convex bending in rear on axial section to the direction of rotation of above-mentioned rib.
5. motor according to claim 4, it is characterised in that
Said stator has：
The cricoid core back of the body；
Circumferential direction is configured at, and from above-mentioned core facing away from the multiple teeth extended to above-mentioned magnet；And
Multiple coils of each of above-mentioned tooth are wound in,
Said stator has the opening portion connected with above-mentioned air entry between above-mentioned coil,
Become the apex of convex to the rear of the direction of rotation in above-mentioned first face, it is opposed with above-mentioned opening portion in the axial direction.
6. motor according to claim 1 or 2, it is characterised in that
Second face at the rear of the direction of rotation of above-mentioned rib has the exhaust got over from above-mentioned air entry side towards the axial other end
Get over inclined second inclined plane in front to direction of rotation in side.
7. motor according to claim 6, it is characterised in that
Above-mentioned second inclined plane is formed as curve on the section perpendicular to radial direction of above-mentioned rib.
8. motor according to claim 6, it is characterised in that
Above-mentioned second face on the section perpendicular to radial direction of above-mentioned rib, above-mentioned second inclined plane exhaust side have parallel to
Axial second straight line portion.
9. motor according to claim 6, it is characterised in that
Above-mentioned second face is in the convex bending in front on axial section to the direction of rotation of above-mentioned rib.
10. motor according to claim 9, it is characterised in that
Said stator has：
The cricoid core back of the body；
Circumferential direction is configured at, and from above-mentioned core facing away from the multiple teeth extended to above-mentioned magnet；And
Multiple coils of each of above-mentioned tooth are wound in,
Said stator has the opening portion connected with above-mentioned air entry between above-mentioned coil,
Become the apex of convex to the front of the direction of rotation in above-mentioned second face, it is opposed with above-mentioned opening portion in the axial direction.
11. motor according to claim 1 or 2, it is characterised in that
The circumferential length of the outer circumference end of above-mentioned rib is bigger than the circumferential length at inner circumferential end.
12. motor according to claim 1 or 2, it is characterised in that
The thickness of the thickness ratio outer circumference end at the inner circumferential end of above-mentioned rib is big.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016169874A JP2018038179A (en) | 2016-08-31 | 2016-08-31 | motor |
| JP2016-169874 | 2016-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251418U true CN207251418U (en) | 2018-04-17 |
Family
ID=61567892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721095894.2U Active CN207251418U (en) | 2016-08-31 | 2017-08-29 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018038179A (en) |
| CN (1) | CN207251418U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7406137B1 (en) * | 2022-07-21 | 2023-12-27 | ダイキン工業株式会社 | Motor, blower, and refrigeration cycle equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6447567U (en) * | 1987-09-18 | 1989-03-23 | ||
| JPH05328687A (en) * | 1992-05-20 | 1993-12-10 | Toshiba Corp | Outer-rotor motor |
| JP2004120983A (en) * | 2002-09-30 | 2004-04-15 | Shinano Kenshi Co Ltd | Outer rotor type motor |
| US20060170294A1 (en) * | 2005-01-31 | 2006-08-03 | Alex Du | Heat dissipation structure of a motor |
| CN202055049U (en) * | 2011-04-01 | 2011-11-30 | 李孔扎 | Motor of air-pump type washing machine |
| JP2013005531A (en) * | 2011-06-14 | 2013-01-07 | Honda Motor Co Ltd | Outer rotor type rotary electric machine |
| CN102957227A (en) * | 2011-08-26 | 2013-03-06 | 德昌电机(深圳)有限公司 | Brushless motor |
| CN202651941U (en) * | 2012-06-19 | 2013-01-02 | 江门市地尔汉宇电器股份有限公司 | DD motor facilitating ventilation and heat dissipation |
-
2016
- 2016-08-31 JP JP2016169874A patent/JP2018038179A/en active Pending
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2017
- 2017-08-29 CN CN201721095894.2U patent/CN207251418U/en active Active
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| Publication number | Publication date |
|---|---|
| JP2018038179A (en) | 2018-03-08 |
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