CN110311511A - Water conservancy diversion end ring, motor stator, motor and the household electrical appliance of motor - Google Patents
Water conservancy diversion end ring, motor stator, motor and the household electrical appliance of motor Download PDFInfo
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- CN110311511A CN110311511A CN201910639380.6A CN201910639380A CN110311511A CN 110311511 A CN110311511 A CN 110311511A CN 201910639380 A CN201910639380 A CN 201910639380A CN 110311511 A CN110311511 A CN 110311511A
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- water conservancy
- conservancy diversion
- end ring
- motor
- peripheral surface
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
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- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention provides water conservancy diversion end ring, motor stator, motor and the household electrical appliance of a kind of motor, there is the first inner peripheral surface and outer peripheral surface in first circumferential wall of water conservancy diversion end ring, one of them of first inner peripheral surface and outer peripheral surface are guide face, another of first inner peripheral surface and outer peripheral surface are fitting surface, the water conservancy diversion through slot of multiple tracks recess is formed on guide face, the extending direction of water conservancy diversion through slot favours the axial direction of the first circumferential wall.Motor stator includes stator core and stator winding, and water conservancy diversion end ring is installed on the adjacent of the winding overhang of stator winding, and motor includes motor stator and rotor, and air gap is formed between motor stator and rotor；Guide face is connected to towards airflow clearance, airflow clearance is formed between rotor and guide face and rotor with air gap.Household electrical appliance include motor.Under the guide functions of multiple inclined grooves, new air is constantly externally entering air gap, and the hot gas in air gap is sent, to realize the heat dissipation on rotor surface.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of water conservancy diversion end ring, motor stator, motor and the household of motor
Electric appliance.
Background technique
Existing high-speed motor has the characteristics that small in size and power density is high, but when due to motor work revolving speed it is high and around
Group power frequency is high, and the high-frequency vortex consume of iron loss, copper loss, rotor on motor stator in every volume unit and surface are empty
Ordinary motor of the gas frictional wear than same power grade is much bigger, therefore that the motor feels hot is serious, if motor temperature is more than temperature rise
The limit then will affect the insulation performance of motor, shorten electrical machinery life.
Wherein, rotor is more serious towards the surface heat at air gap, it is therefore desirable to improve rotor and motor
Heat dissipation effect between stator.
Summary of the invention
The first object of the present invention is to provide a kind of water conservancy diversion end ring for solving rotor outer surface heating problem.
The second object of the present invention is to provide a kind of motor stator for solving rotor outer surface heating problem.
The third object of the present invention is to provide a kind of motor for solving rotor outer surface heating problem.
The fourth object of the present invention is to provide a kind of household electrical appliance to prolong the service life.
The water conservancy diversion end ring for the motor that an object of the present disclosure provides includes the first circumferential wall, has direction in the first circumferential wall
First inner peripheral surface in axle center and the backwards outer peripheral surface in axle center；One of them of first inner peripheral surface and outer peripheral surface be guide face, first
Another of inner peripheral surface and outer peripheral surface are fitting surface；The water conservancy diversion through slot of multiple tracks recess is formed on guide face, water conservancy diversion through slot is from water conservancy diversion
Extend at the axial inner ends of end ring towards the axial outer end of water conservancy diversion end ring, the extending direction of water conservancy diversion through slot favours the first circumferential wall
It is axial.
By above scheme as it can be seen that either external stator motor or external rotor electric machine, between motor stator and rotor
With air gap, after water conservancy diversion end ring is installed to the adjacent of winding overhang on motor stator, between water conservancy diversion end ring and rotor
The airflow clearance of formation is connected to from the axial ends of air gap with air gap, and after rotor rotation, the water conservancy diversion of multiple inclined grooves is made
Under, new air is constantly externally entering air gap, and the hot gas in air gap is sent, to realize dissipating for rotor surface
Heat.
Further scheme is, in the radially projecting that water conservancy diversion through slot is directed toward axle center, shape between water conservancy diversion through slot and axle center
At angle be between 30 degree to 60 degree.
Therefore this setting can guarantee that the guide functions of water conservancy diversion through slot maximize, and further increase the ventilation at air gap
Effect further increases heat dissipation effect.
Further embodiment is that the first inner peripheral surface is guide face, and outer peripheral surface is fitting surface.
Further embodiment is airflow channel to be equipped in water conservancy diversion end ring, the extension both ends side of airflow channel is not the first gas
Head piece and the second airflow orifice, the first airflow orifice are located at axial outer end, and the second airflow orifice is connected to guide face around place.
Therefore can at the first airflow orifice external positive pressure or negative pressure generating device, initiatively improve scavenging efficiency, mention
High heat dissipation effect.
Further scheme is, water conservancy diversion end ring has the second inner peripheral surface towards axle center, the second inner peripheral surface second in
Diameter is greater than the first internal diameter of the first inner peripheral surface, and the second airflow orifice is formed on the second inner peripheral surface.
Therefore second airflow orifice be located at the radial outside of guide face, this setting guarantees air smoothly along water conservancy diversion through slot
Outflow.
Further embodiment is, water conservancy diversion end ring further includes annulus baffle, annulus baffle and the first circumferential wall along axial direction successively
Connection, annulus baffle is compared with the first circumferential wall close to axial outer end.
Therefore the setting of annulus baffle keeps the installation of water conservancy diversion end ring more firm.
Further scheme is that airflow channel is arranged in annulus baffle.
Therefore the radial span of annulus baffle is larger, airflow channel, which is arranged in annulus baffle, arranges freedom degree more
Greatly, and the installation of be more convenient for electric motor end cap and external pressure generator.
Further embodiment is that water conservancy diversion end ring further includes the second circumferential wall for being set to axial outer end, the second circumferential wall position
In the inner circumferential of the first circumferential wall；Airflow space is formed between second circumferential wall and the first circumferential wall, the second airflow orifice is connected to gas
Fluid space, airflow space are connected to surrounding for guide face and locate.
Therefore this setting guarantees further to push from the new air that the second airflow orifice is sent out towards guide face, thus
Effective transfer rate of new air is improved, guarantees ventilation effect.
Further scheme is that airflow space is surrounded on the periphery of the second circumferential wall.
Therefore airflow space is provided around shape and is scattered in new air everywhere in guide face and reaches each of air gap again
Place, thus be the heat dissipation of outer surface of motor everywhere more evenly.
Further embodiment is that fitting surface is round table surface, and from axial outer end, inner end reduces the outer diameter of fitting surface in the axial direction.
Therefore this setting keeps the cooperation between water conservancy diversion end ring and stator winding closer.
Further embodiment is that have the third inner peripheral surface towards axle center, the first inner peripheral surface and third in the first circumferential wall
Inner peripheral surface is set gradually along axial direction, and third inner peripheral surface is relative to the first inner peripheral surface close to axial outer end；The third of third inner peripheral surface
Internal diameter is greater than the first internal diameter of the first inner peripheral surface, and the annular table component level of recess is formed between third inner peripheral surface and the first inner peripheral surface.
Therefore annular table component level is that material processing is gone to be formed, the overall weight that can mitigate motor is arranged in this, realizes motor
Lightweight.
Further embodiment is, water conservancy diversion through slot along straight line through the first circumferential wall axial outer end and axial inner ends it
Between.
Another further embodiment is, water conservancy diversion through slot is along curve through the axial outer end and axial inner ends of the first circumferential wall
Between.
Therefore there can be different extension modes according to the selection of the factors such as the outer diameter of the revolving speed of motor and rotor
Water conservancy diversion through slot can reach different heat dissipation effects.
The motor stator of the offer of second mesh of the invention includes stator core and stator winding, the axial ends of stator winding
The winding overhang protruded from other than stator core is all had, the axial ends of motor stator is equipped with a water conservancy diversion end ring, water conservancy diversion
End ring uses above-mentioned water conservancy diversion end ring；Motor stator radially, water conservancy diversion end ring is disposed adjacent with winding overhang, fitting surface with
Winding overhang cooperation.
By above scheme as it can be seen that either external stator motor or external rotor electric machine, have between motor stator and rotor
There is air gap, the gap formed between water conservancy diversion end ring and rotor is connected to from the axial ends of air gap with air gap, and rotor turns
After dynamic, under the guide functions of multiple inclined grooves, new air is constantly externally entering air gap, and the hot gas in air gap is sent,
The heat dissipation on rotor surface is realized by ventilation.
Further embodiment is that the axial ends of motor stator is equipped with a cooling end ring, has ring in cooling end ring
Around the refrigerant passage of setting, the extension both ends of refrigerant passage are respectively provided with refrigerant passage entrance and refrigerant passage outlet；In motor
Radially, refrigerant end ring is disposed adjacent stator with winding overhang, and refrigerant end ring and water conservancy diversion end ring are located at winding overhang
Opposite sides.Therefore the winding overhang calorific value of stator winding axial ends is larger, distinguishes in the axial ends of motor
One cooling end ring is set, in inculcating coolant liquid or cooling gas in cooling end ring, to realize the heat dissipation to winding overhang.
Further embodiment is the multiple tracks refrigerant passage being provided with axially disposed in cooling end ring.
Therefore increase refrigerant passage with increasing heat radiation area, improving radiating effect.
Further embodiment is that the first connector is arranged in refrigerant passage inlet in cooling end ring, and refrigerant end ring is in refrigerant
The second connector is arranged in channel exit, and the first connector and the second connector are disposed adjacent；First connector and winding overhang
Between, between the second connector and winding overhang be respectively formed heat-insulated gap.
Therefore heat-insulated gap is set and is directly connect to prevent the winding overhang of high temperature with the first connector or the second connector
Touching damages the first connector and the second connector.
Further embodiment is, motor stator further includes positioning ring, positioning ring be set to stator core and cooling end ring it
Between；First positioning region is set on positioning ring, the second positioning region is set on cooling end ring, the first positioning region is matched with the second positioning region
It closes；One of them of first positioning region and the second positioning region are axially disposed positioning port, the first positioning region and the second positioning
Another of portion is axially disposed positioning protrusion.
Therefore this setting keeps the installation of cooling end ring more firm.
Further embodiment is that the section of refrigerant passage is in polygon.
Further scheme is that the section of refrigerant passage assumes diamond in shape.
Therefore this setting can increase refrigerant passage inner surface area, i.e. increasing heat radiation area.
The motor that third purpose of the present invention provides includes motor stator and rotor, between motor stator and rotor
Form air gap；Motor stator uses above-mentioned motor stator, and guide face is towards between rotor and guide face and rotor
Airflow clearance is formed, airflow clearance is connected to air gap.
The household electrical appliance of the offer of 4th mesh of the invention include motor, and motor uses above-mentioned motor.
Detailed description of the invention
Fig. 1 is the cross-sectional view of motor first embodiment of the present invention.
Fig. 2 is the structure chart of motor first embodiment of the present invention.
Fig. 3 is the structure chart for being located at the water conservancy diversion end ring of motor axial direction first end in motor first embodiment of the present invention.
Fig. 4 is the cross-sectional view for being located at the water conservancy diversion end ring of motor axial direction first end in motor first embodiment of the present invention.
Fig. 5 is the structure chart for being located at the water conservancy diversion end ring of motor axial direction second end in motor first embodiment of the present invention.
Fig. 6 is the cross-sectional view for being located at the water conservancy diversion end ring of motor axial direction second end in motor first embodiment of the present invention.
Fig. 7 is the structure chart of cooling end ring in motor first embodiment of the present invention.
Fig. 8 is the sectional view of cooling end ring in motor first embodiment of the present invention.
Fig. 9 is the structure chart of positioning ring in motor first embodiment of the present invention.
Figure 10 is the cross-sectional view of motor second embodiment of the present invention.
Figure 11 is the cross-sectional view of water conservancy diversion end ring in motor second embodiment of the present invention.
Figure 12 is the cross-sectional view of water conservancy diversion end ring in motor 3rd embodiment of the present invention.
Figure 13 is the partial sectional view of water conservancy diversion end ring in motor fourth embodiment of the present invention.
Figure 14 is the partial sectional view of water conservancy diversion end ring in the 5th embodiment of motor of the present invention.
Figure 15 is the cross-sectional view of water conservancy diversion end ring in motor sixth embodiment of the present invention.
Figure 16 is the schematic cross-sectional view of the 7th embodiment of motor of the present invention.
Specific embodiment
Household electrical appliance provided by the invention such as washing machine, smoke exhaust ventilator, air-conditioning, fan and air purifier etc., inside set
It is equipped with the motor for realizing high-speed rotation driving, due to realizing that the object of the invention concrete scheme is the improvement of motor, therefore hereafter only
Motor in household electrical appliance is described in detail.
Motor first embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the cross-sectional view of motor first embodiment of the present invention, and Fig. 2 is that motor first of the present invention is real
Apply the structure chart of example.Motor includes motor stator 1 and the rotor 2 positioned at 1 inner circumferential of motor stator, and motor stator 1 has fixed
Sub- stator winding iron core 11 and be wound on stator core 11, in the axial direction of the motor, stator winding has to be raised in respectively
The winding overhang 121 and winding overhang 122 of 11 axial ends of stator core, and in motor running, winding overhang 121 and winding
End 122 is big compared with the middle part calorific value of stator winding；Shape between the inner surface of stator core 11 and the outer surface of rotor 2
At air gap 101, in motor running, the outer surface of rotor 2 equally exists serious problem of generating heat.
To solve heating problem at above-mentioned two, motor further includes 16, two water conservancy diversion end ring 13, water conservancy diversion end ring 14 and of positioning ring
Two cooling end ring 15, water conservancy diversion end ring 13 be arranged in the inner circumferential of winding overhang 121 with the axial first end of air gap 101 cooperate,
The inner circumferential of winding overhang 122 is arranged in cooperate with the axial second end of air gap 101 in water conservancy diversion end ring 16；One positioning ring 14 and one
A cooling end ring 15 is successively sleeved on the periphery of winding overhang 121, another positioning ring 14 and another cooling end ring 15 are successively
It is sleeved on the periphery of winding overhang 122.
In conjunction with Fig. 3 and Fig. 4, Fig. 3 is the structure chart of water conservancy diversion end ring 13 in motor first embodiment of the present invention, and Fig. 4 is this
The cross-sectional view of water conservancy diversion end ring 13 in invention motor first embodiment.Since the use of water conservancy diversion end ring 13 and water conservancy diversion end ring 16 is related to gas
Stream flow direction, therefore, as a preferred embodiment, water conservancy diversion end ring 13 and 16 structure of water conservancy diversion end ring difference in the present embodiment, herein
First water conservancy diversion end ring 13 is specifically described.
Water conservancy diversion end ring 13 has the first circumferential wall 131, the second circumferential wall 132 and annulus baffle 133, in water conservancy diversion end ring 13
In axial direction, water conservancy diversion end ring 13 has the axial inner ends 13a towards the motor center and axial outer end 13b backwards to motor center, the
Along axial direction, from axial inner ends 13a, outer end 13b extends one circumferential wall 131 in the axial direction, and annulus baffle 133 is connected to the first circumferential wall
131 axial end portion, and annulus baffle 133 is located at axial outer end 13b；Second circumferential wall 132 is connect with annulus baffle 133 and position
In the inner circumferential of the first circumferential wall 131, relative to axial inner ends 13a, the second circumferential wall 132 is closer to axial outer end 13b.
First circumferential wall 131 has the first inner peripheral surface towards axle center and the outer peripheral surface backwards to axle center, and the first inner peripheral surface is
Guide face 131b, outer peripheral surface are fitting surface 131a.Guide face 131b is close to axial inner ends 13a, and the second circumferential wall 132 is not to leading
Stream interface 131b is blocked, and is provided with the multiple tracks water conservancy diversion through slot 134 being circumferentially evenly arranged on guide face 131b, water conservancy diversion through slot 134 from
Axial inner ends 13a is towards axial outer end 13b along linear extension, and the extending direction of water conservancy diversion through slot 134 favours the first circumferential wall 131
Axle center, water conservancy diversion through slot 134 be directed toward axle center radially projecting on (i.e. in the projection at visual angle shown in Fig. 4), water conservancy diversion through slot 134 with
The angle a1 formed between axle center is 30 degree.Fitting surface 131a and winding overhang 121 (Fig. 1 shows) cooperate.
Form the airflow space 135 of annular between first circumferential wall 131 and the second circumferential wall 132, the first circumferential wall 131 with
Second circumferential wall 132 is integrated, and is carried out annular cutting processing from axial inner ends 13a towards axial outer end 13b by cutter, is formed
The second circumferential wall 132 and the first circumferential wall are then respectively formed while airflow space 135, inside and outside airflow space 135
131。
It is provided with the airflow channel 136 radially extended on annulus baffle 133, is bored from the periphery of annulus baffle 133
Hole then forms airflow channel 136 and the second airflow orifice 136b for being communicated to airflow space 135, then in the axis of annulus baffle 133
Outside end face drills to form the first airflow orifice 136a for being connected to airflow channel 136, and the hell of 133 periphery of annulus baffle by
Closeouts 137 block, and closeouts 137 can be rubber stopper or sealing bolt etc..Therefore, the first airflow orifice 136a, airflow channel
136, the second airflow orifice 136b, the airflow space 135 of annular, guide face 131b are sequentially communicated around place.
Referring to figs. 5 and 6, Fig. 5 is the structure chart of water conservancy diversion end ring 16 in motor first embodiment of the present invention, and Fig. 6 is this hair
The cross-sectional view of water conservancy diversion end ring 16 in bright motor first embodiment.Water conservancy diversion end ring 16 has the first circumferential wall 161 and annulus baffle
162, in the axial direction of water conservancy diversion end ring 16, water conservancy diversion end ring 16 has towards the axial inner ends 16a of motor center and in motor
The axial outer end 16b of the heart, along axial direction, from axial inner ends 16a, outer end 16b extends the first circumferential wall 161 in the axial direction, annulus baffle 162
It is connected to the axial end portion of the first circumferential wall 161, and annulus baffle 162 is located at axial outer end 16b.
First circumferential wall 161 has the inner peripheral surface towards axle center and the outer peripheral surface backwards to axle center, and inner peripheral surface is guide face
161b, outer peripheral surface are fitting surface 161a.Guide face 161b is provided with circumferentially on axial inner ends 16a, guide face 161b
The multiple tracks water conservancy diversion through slot 163 of even arrangement, water conservancy diversion through slot 163, along linear extension, and are led from axial inner ends 16a towards axial outer end 16b
The extending direction of circulation groove 163 favours the axle center of the first circumferential wall 161, is directed toward the radially projecting in axle center in water conservancy diversion through slot 163
Upper (i.e. in the projection at visual angle shown in Fig. 4), the angle a2 formed between water conservancy diversion through slot 163 and axle center are 60 degree.Fitting surface 161a
Cooperate with winding overhang 122 (Fig. 1 shows).
It is provided with the airflow channel 164 radially extended on annulus baffle 162, is bored from the periphery of annulus baffle 162
Hole then forms airflow channel 164 and the second airflow orifice 164b around place for being communicated to annulus baffle 162, then in annulus baffle
162 axial outer end face drills to form the first airflow orifice 164a for being connected to airflow channel 164, and 162 periphery of annulus baffle
Hell is blocked by closeouts 165, and closeouts 165 can be rubber stopper or sealing bolt etc..
Wherein, the second internal diameter of the second inner peripheral surface where the second airflow orifice 164b is greater than in the first of guide face 161b
Diameter.Since water conservancy diversion end ring 16 is located at the downstream in airflow direction, and external negative pressure generating device at the first airflow orifice 164a, this
It is arranged and can guarantee that the hot gas being discharged from air gap 101 (Fig. 1 shows) is close to the water conservancy diversion through slot 163 on guide face 161b and flows into the second gas
Head piece 164b.
In conjunction with Fig. 1, Fig. 4 and Fig. 6, water conservancy diversion end ring 13 is installed on motor stator 1 axial first where winding overhang 121
End, the first circumferential wall 131 are located at the inner circumferential of winding overhang 121, the inner peripheral surface cooperation of fitting surface 131a and winding overhang 121, circle
Ring baffle 133 is blocked in the axially external of winding overhang 121, the guide face 131b of the first circumferential wall 131 and rotor 2 it is outer
Airflow clearance 102 is formed between surface, airflow clearance 102 is connected to air gap 101.
Water conservancy diversion end ring 16 is installed to the axial first end on motor stator 1 where winding overhang 122, the first circumferential wall 161
Positioned at the inner circumferential of winding overhang 121, the inner peripheral surface of fitting surface 161a and winding overhang 122 cooperates, annulus baffle 162 block around
The axially external of end 122 is organized, forms air-flow between the guide face 161b of the first circumferential wall 161 and the outer surface of rotor 2
Gap 103, airflow clearance 103 are connected to air gap 101.
On water conservancy diversion end ring 13, the external positive pressure generation device of the first airflow orifice 136a；On water conservancy diversion end ring 16, the first airflow orifice
The external negative pressure generating device of 164a.After motor running, cold airflow successively passes through airflow channel after the first airflow orifice 164a entrance
136, enter air gap 101 after the second airflow orifice 136b, the airflow space 135 of annular and airflow clearance 102.Wherein, in the second circle
Under the blocking and water conservancy diversion of peripheral wall 132, multiple water conservancy diversion through slots 134 on annular 135 face guide face 131b of airflow space, cold air
Stream enters sufficiently into airflow clearance 102 and reaches air gap 101 to carry out ventilation heat dissipation.
Then, the hot-air generated because 2 outer surface of rotor generates heat flows to airflow clearance 103 under air-flow promotion,
And enter under the work of negative pressure generating device from the second airflow orifice 164b and enter airflow channel 164, finally from the first airflow orifice
164a is sent out.
After rotor 2 rotates, the air-flow taken out of from its periphery necessarily has the movement in axial direction, radial direction and rotation direction
Component, therefore, water conservancy diversion through slot 134 and water conservancy diversion through slot 163 are obliquely installed to adapt to the gas generated when rotor 2 rotates
Flow direction enhances heat transfer effect to improve the circulation of air-flow.
Fig. 1, Fig. 2, Fig. 7 and Fig. 8 are participated in, Fig. 7 is the structure chart of cooling end ring in motor first embodiment of the present invention, Fig. 8
For the sectional view of end ring cooling in motor first embodiment of the present invention.Cooling end ring 15 is curved using the cooling tube row 150 of vertical bar shape
It is converted into around shape and is formed, the material of cooling tube row 150 is the preferable metal of thermal conductivity, such as aluminium, copper and aluminium copper.It is cooling
There is the multiple tracks refrigerant passage 153 around setting, the section of refrigerant passage 153 is diamond shape, multiple tracks refrigerant passage 153 in end ring 15
Between along motor stator 1 axial direction arrangement.The extension both ends of refrigerant passage 153 are respectively provided with refrigerant passage entrance and refrigerant passage
The first connector 151 is arranged in refrigerant passage inlet in outlet, cooling end ring 15, and refrigerant end ring is arranged in refrigerant passage exit
Second connector 152, the refrigerant passage entrance of per pass refrigerant passage 153 are connected to the first connector 151, per pass refrigerant passage
153 refrigerant passage outlet is connected to the second connector 152.
First connector 151 and the second connector 152 are disposed adjacent, and 152 phase of the first connector 151 and the second connector
150 back axis cardiac prominences are arranged for cooling tube to rise, after cooling 15 sets of end ring is attached to winding overhang 121 or winding 122 periphery of end ring,
Due to the protrusion setting of the first connector 151 and the second connector 152, the first connector 151, the second connector 152 and winding
A heat-insulated gap 104 is respectively formed between end 121 or winding overhang 122 (Fig. 1 and Fig. 2 show).
In conjunction with Fig. 9, Fig. 9 is the structure chart of positioning ring in motor first embodiment of the present invention.It is provided on positioning ring 14
One axially disposed positioning port 141, positioning ring 14 is solderable or is adhered on the axial outer end face of stator core 11；Cold
But in the axial direction of end ring 15, the formation one relative to 150 protrusion of cooling tube row of the first connector 151 and the second connector 152
Positioning protrusion 154.
In conjunction with Fig. 1, by taking winding overhang 121 as an example, after cooling tube row 150 is sleeved on 121 periphery of winding overhang, convex
It rises and 154 protrudes into the positioning port 141 of positioning ring 14, to realize circumferentially positioned, prevent cooling end ring 15 from deflecting.Wherein,
In the axial direction of motor stator 1, the length of cooling end ring 15 is greater than the length of winding overhang 121 or winding overhang 122, thus
Guarantee that the cooling end ring 15 for being wrapped in 122 periphery of winding overhang 121 or winding overhang can cover winding overhang 121 or winding comprehensively
The outer peripheral surface of end 122 obtains maximum heat dissipation area to realize optimal heat dissipation effect.
The passway towards motor axial direction is all had on first connector 151 and the second connector 152, refrigerant efferent duct connects
It is connected to the passway of the first connector 151, refrigerant recovering pipe is connected to the passway of the second connector 152, cooling can be realized
The refrigeration work of end ring 15.
In conjunction with Fig. 2, a cooling end ring 15 is centered around the periphery of annulus baffle 133 on water conservancy diversion end ring 13, a cooling
End ring 15 is centered around the periphery of the annulus baffle 162 of water conservancy diversion end ring 16, since water conservancy diversion end ring 13 and water conservancy diversion end ring 16 are close to respectively
Winding overhang 121 and winding overhang 122 are arranged, and the heat on water conservancy diversion end ring 13 and water conservancy diversion end ring 16 can be transmitted to solidifying gas end ring
On 15.In addition, the closeouts of closeouts 137 and annulus baffle 162 periphery of the cooling end ring 15 also to 133 periphery of annulus baffle
165 are limited radially, prevent from loosening and gas circuit being caused to crumble.
Motor second embodiment
Referring to Figure 10 and Figure 11, Figure 10 is the cross-sectional view of motor second embodiment of the present invention, and Figure 11 is motor of the present invention the
The cross-sectional view of water conservancy diversion end ring in two embodiments.In the present embodiment, the identical water conservancy diversion end ring of the two sides mounting structure of motor stator 3
33, water conservancy diversion end ring 33 does not simultaneously have the airflow channel and airflow space recorded in such as first embodiment,
Water conservancy diversion end ring 33 includes along axial sequentially connected first circumferential wall 331 and annulus baffle 332, annulus baffle 332
Close to axial outer end 33b, the first circumferential wall 331 is close to axial inner ends 33a.Backwards to the fitting surface in axle center in first circumferential wall 331
331a is round table surface, and from axial outer end 33b, inner end 33a is gradually reduced the outer diameter of fitting surface 331a in the axial direction；Accordingly, in stator
The inner peripheral surface of winding 32 is in rotary table planar at winding overhang 321 and winding overhang 322, and the assembly for making water conservancy diversion end ring 33 is arranged in this
Face 331a and the inner peripheral surface cooperation of stator winding 32 are closer.
There is the first inner peripheral surface 331b and third inner peripheral surface 331c towards axle center, the first inner circumferential in first circumferential wall 331
Face 331b is guide face, is provided with multiple water conservancy diversion through slots 333 for favouring axle center on guide face.First inner peripheral surface 331b and third
Inner peripheral surface 331c is set gradually along axial direction, third inner peripheral surface 331c relative to the first inner peripheral surface 331b close to axial outer end 33b,
The third internal diameter of three inner peripheral surface 331c is greater than the first internal diameter of the first inner peripheral surface 331b, third inner peripheral surface 331c and the first inner peripheral surface
The annular table component level 334 of recess is formed between 331b.For annular table component level 334 by going material processing to be formed, this setting can mitigate electricity
The overall weight of machine realizes the lightweight of motor.
In the present embodiment, the axial end of the notch face air gap 301 of 333 extending end of water conservancy diversion through slot, the present embodiment
Ventilation heat dissipation mainly drives gas flowing by 4 own rotation of rotor, after gas reaches at the notch of water conservancy diversion through slot 333,
Be carried under the guidance for the water conservancy diversion through slot 333 being obliquely installed, therewith, in the axial other end of motor, new air pressure from
Air gap 301 is flowed into along water conservancy diversion through slot 333 under adjusting, to complete to exchange heat.
Motor 3rd embodiment
Referring to Figure 12, Figure 12 is the cross-sectional view of water conservancy diversion end ring in motor 3rd embodiment of the present invention.In the present embodiment, water conservancy diversion
Do not have annulus baffle on end ring 53, water conservancy diversion end ring 53 has the first circumferential wall 531 and positioned at the of 531 inner circumferential of the first circumferential wall
Two circumferential walls 532, the first circumferential wall 531 extend to axial outer end 53b from axial inner ends 53a, and the second circumferential wall 532 is close to axial
Outer end 53b does not cause to block to the guide face 531b in the first circumferential wall 531, in this set-up mode and motor first embodiment
It is identical.
There is the interconnecting piece 539 positioned at axial outer end 53b between first circumferential wall 531 and the second circumferential wall 532, connecting
Portion 539 along first circumferential wall 531 axial drilling and form airflow channel 535 and extend both ends positioned at airflow channel 535
First airflow orifice 535a and the second airflow orifice 535b, the second airflow orifice 535b are connected to round positioned at the first circumferential wall 531 and second
In the airflow space 534 of annular between peripheral wall 532.
After the output end of positive pressure generation device is connected to the first airflow orifice 535a, cold airflow can equally pass sequentially through first
Leading on guide face 531b is reached after airflow orifice 535a, airflow channel 535, the second airflow orifice 535b, annular airflow space 534
At circulation groove 533, and the present embodiment only passes through the fitting surface 531a of 531 periphery of the first circumferential wall and winding overhang cooperates.
Motor fourth embodiment
Referring to Figure 13, Figure 13 is the partial sectional view of water conservancy diversion end ring in motor fourth embodiment of the present invention.In the present embodiment,
Do not have annulus baffle on water conservancy diversion end ring 63, and airflow channel 635 is arranged in the first circumferential wall 631, in the first circumferential wall 631
On towards axial outer end 63b end face drill, and the fitting surface 631a of the first circumferential wall 631 cutting be plane after drill, or
The above twice drill process sequence is exchanged, and two orthogonal holes are connected to and form airflow channel 635, and airflow channel 635 exists
Opening on fitting surface 631a is blocked by closeouts, and the extension both ends of airflow channel 635 have orthogonal first air-flow
Mouthful 635a and the second airflow orifice 635b, the second airflow orifice 635b be communicated to positioned at the first circumferential wall 631 and the second circumferential wall 632 it
Between airflow space 634 at.
The 5th embodiment of motor
Referring to Figure 14, Figure 14 is the partial sectional view of water conservancy diversion end ring in the 5th embodiment of motor of the present invention.In the present embodiment,
Water conservancy diversion end ring 73 only has the first circumferential wall 731, and airflow channel 733 is arranged in the first circumferential wall 731, and airflow channel 733 has
There is axially disposed the first airflow orifice 733a and is directed radially towards the second airflow orifice 733b in axle center, the second airflow orifice 733b institute
The second inner peripheral surface the second internal diameter be greater than guide face 731b the first internal diameter.
Motor sixth embodiment
Referring to Figure 15, Figure 15 is the cross-sectional view of water conservancy diversion end ring in motor sixth embodiment of the present invention.In the present embodiment, water conservancy diversion
Through slot 833 is directed toward the radially projecting in axle center between the axial ends that curve extends the first circumferential wall 83, in water conservancy diversion through slot 833
Upper (i.e. in the projection at visual angle shown in Figure 15), the angle a3 formed between water conservancy diversion through slot 833 and axle center are 40 degree.Wherein, it is bent
The notch of extension first end of the extending direction of the water conservancy diversion through slot 833 of extension to water conservancy diversion through slot 833 is directed toward water conservancy diversion through slot 833 and prolongs
Stretch the rectilinear direction of another notch of second end.
The 7th embodiment of motor
Referring to Figure 16, Figure 16 is the schematic cross-sectional view of the 7th embodiment of motor of the present invention.Above-mentioned six motor embodiments are equal
For external stator motor, the present embodiment is external rotor electric machine.Since the relative position of motor stator 91 and rotor 92 occurs mutually
It changes, the set-up mode of water conservancy diversion end ring 93 and cooling end ring 94 is closed according to the position of motor stator 91 and rotor 92 on motor 9
System is adjusted.
Motor stator 91 is located at the inner circumferential of rotor 92, and water conservancy diversion end ring 93 need to cooperate with air gap 901, therefore the present embodiment
In, water conservancy diversion end ring 93 is sleeved on the periphery of winding overhang 921, and relatively, cooling end ring 94 is fixed on the interior of winding overhang 921
Week.
Finally it is emphasized that the above description is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is right
For those skilled in the art, the present invention can have various change and change, and in other embodiments, water conservancy diversion through slot prolongs
Stretching the angle formed between direction and the axial direction of the first circumferential wall is between 30 degree to 60 degree, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done should all be included in the protection scope of the present invention.
Claims (22)
1. the water conservancy diversion end ring of motor characterized by comprising
First circumferential wall has the first inner peripheral surface towards axle center and the periphery backwards to the axle center in first circumferential wall
Face；
One of them of first inner peripheral surface and the outer peripheral surface are guide face, first inner peripheral surface and the outer peripheral surface
Another is fitting surface；
The water conservancy diversion through slot of multiple tracks recess is formed on the guide face, the water conservancy diversion through slot is from the axial inner ends of the water conservancy diversion end ring
Axial outer end towards the water conservancy diversion end ring extends, and the extending direction of the water conservancy diversion through slot favours the axis of first circumferential wall
To.
2. water conservancy diversion end ring according to claim 1, it is characterised in that:
It is directed toward in the radially projecting in the axle center in the water conservancy diversion through slot, the folder formed between the water conservancy diversion through slot and the axle center
Angle is between 30 degree to 60 degree.
3. water conservancy diversion end ring according to claim 1 or 2 characterized by comprising
First inner peripheral surface is the guide face, and the outer peripheral surface is the fitting surface.
4. water conservancy diversion end ring according to claim 3, it is characterised in that:
Airflow channel is equipped in the water conservancy diversion end ring, the extension both ends side of the airflow channel is not the first airflow orifice and the second gas
Head piece, first airflow orifice are located at the axial outer end, and second airflow orifice is connected to the guide face around place.
5. water conservancy diversion end ring according to claim 4, it is characterised in that:
The water conservancy diversion end ring has the second inner peripheral surface towards the axle center, and the second internal diameter of second inner peripheral surface is greater than described
First internal diameter of the first inner peripheral surface, second airflow orifice are formed on second inner peripheral surface.
6. water conservancy diversion end ring according to claim 4, it is characterised in that:
The water conservancy diversion end ring further includes annulus baffle, and the annulus baffle successively connects with first circumferential wall along the axial direction
It connects, annulus baffle first circumferential wall is close to the axial outer end.
7. water conservancy diversion end ring according to claim 6, it is characterised in that:
The airflow channel is arranged in the annulus baffle.
8. water conservancy diversion end ring according to claim 4, it is characterised in that:
The water conservancy diversion end ring further includes the second circumferential wall for being set to the axial outer end, and second circumferential wall is located at described the
The inner circumferential of one circumferential wall；
Airflow space is formed between second circumferential wall and first circumferential wall, second airflow orifice is connected to the gas
Fluid space, the airflow space are connected to surrounding for the guide face and locate.
9. water conservancy diversion end ring according to claim 8, it is characterised in that:
The airflow space is surrounded on the periphery of second circumferential wall.
10. water conservancy diversion end ring according to claim 3, it is characterised in that:
The fitting surface is round table surface, and the outer diameter of the fitting surface reduces from the axial outer end to the axial inner ends.
11. water conservancy diversion end ring according to claim 3, it is characterised in that:
There is the third inner peripheral surface towards the axle center, first inner peripheral surface and the third inner circumferential in first circumferential wall
Face is set gradually along the axial direction, and the third inner peripheral surface is relative to first inner peripheral surface close to the axial outer end；
The third internal diameter of the third inner peripheral surface be greater than first inner peripheral surface the first internal diameter, the third inner peripheral surface with it is described
The annular table component level of recess is formed between first inner peripheral surface.
12. water conservancy diversion end ring according to claim 3, it is characterised in that:
The water conservancy diversion through slot is along straight line through between the axial outer end and axial inner ends of first circumferential wall.
13. water conservancy diversion end ring according to claim 3, it is characterised in that:
The water conservancy diversion through slot is along curve through between the axial outer end and axial inner ends of first circumferential wall.
14. motor stator, including stator core and stator winding, the axial ends of the stator winding all have protrude from it is described
Winding overhang other than stator core, it is characterised in that:
The axial ends of the motor stator is equipped with the water conservancy diversion end ring, and the water conservancy diversion end ring uses the claims
1 to 13 described in any item water conservancy diversion end ring；
The motor stator radially, the water conservancy diversion end ring is disposed adjacent with the winding overhang, the fitting surface and institute
State winding overhang cooperation.
15. motor stator according to claim 14, it is characterised in that:
The axial ends of the motor stator is equipped with the cooling end ring, has in the cooling end ring around setting
Refrigerant passage, the extension both ends of the refrigerant passage are respectively provided with refrigerant passage entrance and refrigerant passage outlet；
The motor stator radially, the refrigerant end ring is disposed adjacent with the winding overhang, and the refrigerant end ring
The opposite sides of the winding overhang is located at the water conservancy diversion end ring.
16. motor stator according to claim 15, it is characterised in that:
It is provided in the cooling end ring along refrigerant passage described in the multiple tracks axially arranged.
17. motor stator according to claim 15 or 16, it is characterised in that:
The first connector is arranged in the refrigerant passage inlet in the cooling end ring, and the refrigerant end ring is in the refrigerant passage
The second connector is arranged in exit, and first connector and second connector are disposed adjacent；
Be respectively formed between first connector and the winding overhang, between second connector and the winding overhang every
Temperature gap.
18. motor stator according to claim 15 or 16, it is characterised in that:
The motor stator further includes positioning ring, and the positioning ring is set between the stator core and the cooling end ring；
First positioning region is set on the positioning ring, the second positioning region is set on the cooling end ring, first positioning region with
The second positioning region cooperation；
One of them of first positioning region and second positioning region are along the positioning port being axially arranged described first
Another of positioning region and second positioning region are along the positioning protrusion being axially arranged.
19. motor stator according to claim 15 or 16, it is characterised in that:
The section of the refrigerant passage is in polygon.
20. motor stator according to claim 19, it is characterised in that:
The section of the refrigerant passage assumes diamond in shape.
21. motor, including motor stator and rotor, form air gap between the motor stator and the rotor；
It is characterized by:
The motor stator uses the described in any item motor stators of the claims 14 to 20, and the guide face is described in
Airflow clearance is formed between rotor and the guide face and the rotor, the airflow clearance and the air gap connect
It is logical.
22. household electrical appliance, including motor, the motor is using motor described in the claims 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910639380.6A CN110311511B (en) | 2019-07-16 | 2019-07-16 | Diversion end ring of motor, motor stator, motor and household appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910639380.6A CN110311511B (en) | 2019-07-16 | 2019-07-16 | Diversion end ring of motor, motor stator, motor and household appliance |
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| CN110311511A true CN110311511A (en) | 2019-10-08 |
| CN110311511B CN110311511B (en) | 2020-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912299A (en) * | 2019-12-24 | 2020-03-24 | 苏州苏磁智能科技有限公司 | Air gap heat radiation structure of high-speed motor |
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| WO2002071577A1 (en) * | 2001-03-07 | 2002-09-12 | Hitachi, Ltd. | Rotary electric machinery |
| CN102384101A (en) * | 2010-08-26 | 2012-03-21 | 哈米尔顿森德斯特兰德公司 | Compressor bearing cooling inlet plate |
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| CN110311511B (en) | 2020-06-05 |
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