CN108768005A - Stator core, motor and compressor - Google Patents
Stator core, motor and compressor Download PDFInfo
- Publication number
- CN108768005A CN108768005A CN201810630683.7A CN201810630683A CN108768005A CN 108768005 A CN108768005 A CN 108768005A CN 201810630683 A CN201810630683 A CN 201810630683A CN 108768005 A CN108768005 A CN 108768005A
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- Prior art keywords
- stator
- pole shoe
- motor
- groove gap
- stator core
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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
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of stator core, motor and compressor provided by the invention, stator body are in the form of a column；For stator tooth along the circumferentially-spaced distribution of stator body, the arbitrary neighborhood two in multiple stator tooths limits stator groove gap；First pole shoe and the second pole shoe, it is respectively positioned on the one end of multiple stator tooths far from stator body, and first pole shoe and the second pole shoe be separately positioned on the both sides of stator tooth, notch, the adjacent center line of stator groove gap and the centerline parallel of notch are formed positioned at the first pole shoe of stator groove gap both sides and the second pole shoe and there is pre-determined distance.Due to having pre-determined distance between the center and the center line of stator groove gap of notch, the reluctance torque being sufficiently used in this way caused by rotor magnetic circuit structural asymmetry, thus motor torque and moment coefficient can be improved by increasing reluctance torque in the case where not changing back emf coefficient, and then ensure there can be higher torque output capability when motor rotates.
Description
Technical field
The present invention relates to motor fields, more specifically, are related to a kind of stator core, a kind of motor and a kind of compressor.
Background technology
Currently, trend of the motor due to miniaturization so that motor will improve as far as possible in the efficiency of rated point, simultaneously because
The requirement (requirement as being directed to compressor within air-conditioning systems) of motor usage scenario, compressor will have overload as high as possible
Ability ensures motor at high speed, can have larger torque output capability.According to design of electrical motor theory, in rotating speed one
Under the premise of fixed, the moment coefficient of motor improves, and the overload capacity and efficiency of motor can also improve, but due to same electricity
Machine, moment coefficient is directly proportional to back emf coefficient, is limited to busbar voltage, and when improving moment coefficient, back emf coefficient cannot nothing
The raising of limitation, it is therefore desirable to which back emf coefficient will not excessively high be improved again while improving motor torque coefficient by finding one kind
Method.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.
One aspect of the present invention provides a kind of stator core.
One aspect of the present invention provides a kind of motor.
One aspect of the present invention provides a kind of compressor.
In view of a kind of above-mentioned, stator core provided by the invention, it is used for motor, stator core to include：Stator body, stator
Ontology is in the form of a column；Multiple stator tooths, stator tooth along stator body circumferentially-spaced distribution, it is arbitrary in multiple stator tooths
It is two neighboring to limit stator groove gap；Multiple first pole shoes and multiple second pole shoes, are respectively positioned on multiple stator tooths far from stator
On one end of ontology, and any of any of multiple first pole shoes and multiple second pole shoes be separately positioned on it is multiple fixed
The both sides of any of sub- double wedge are located at the first pole shoe and the second pole shoe formation notch of a stator groove gap both sides, adjacent
The center line of stator groove gap and the centerline parallel of notch and have pre-determined distance.
Stator core provided by the invention includes stator body, stator tooth, the first pole shoe and the second pole shoe, stator body
For column, and multiple stator tooths of the circumferentially-spaced distribution along stator body are provided on the inner wall of stator body, respectively
A stator tooth is not attached to and has gap so that limits stator slot between two stator tooths of arbitrary neighborhood
Gap, multiple first pole shoes and multiple second pole shoes, are respectively positioned on the one end of multiple stator tooths far from stator body, and every
The both sides of a stator tooth are respectively arranged there are one the first pole shoe and second pole shoe, in this way fixed positioned at adjacent two
The both sides of the stator groove gap formed between sub- double wedge are respectively provided with first pole shoe and second pole shoe, are located at one and determine
First pole shoe and second pole shoe for pilot trench gap both sides is oppositely arranged to form notch, so that notch and stator groove gap
It is disposed adjacent, and each notch is made to be respectively positioned on the open end of stator groove gap adjacent thereto, and the center line of notch is set
Set it is parallel but misaligned with the center line of stator groove gap, due to making have between the center of notch and the center line of stator groove gap
There are pre-determined distance, the reluctance torque being sufficiently used in this way caused by rotor magnetic circuit structural asymmetry to be rotated in motor
When, the rotor inside stator core rotates so that the reluctance torque of entire motor improves, and can thus not change back-emf
Motor torque and moment coefficient are improved by increasing reluctance torque in the case of coefficient, and then ensures can have when motor rotates
There is higher torque output capability.
In addition, also there is following additional technical feature according to a kind of stator core that above-mentioned technical proposal of the present invention provides：
In any of the above-described technical solution, it is preferable that the length of any of multiple first pole shoes is more than multiple second
The length of any of pole shoe is located at the first pole shoe and the of stator groove gap both sides along the rotation process of the rotor of motor
The installation position of diode boot is to be rotated from the first pole shoe direction to the second pole shoe direction.
In the technical scheme, the length all same of multiple first pole shoes, the length all same of multiple second pole shoes, and
The length that the length of first pole shoe is more than the second pole shoe sets two different pole shoes of length in this way during setting
The both sides of same notch are set to, in this way in the length of the first pole shoe of the notch of formation and the second pole shoe difference, such first pole
The notch that boots and the second pole shoe are formed when being extended outwardly by the side wall of stator tooth must not be weighed with the center line of stator groove gap
It closes, and can be by controlling the length of the first pole shoe and the second pole shoe respectively, to control the position to form notch, i.e. the first pole
The length of boots is longer, the notch of formation further away from the root of the first pole shoe, while the length for limiting the second pole shoe be more than it is default
Value, i.e., the length of the second pole shoe cannot be zero, and the notch that can be avoided the formation of in this way is too amesiality and nothing not readily passes through slot
The inside coiling winding of mouth, it is preferable that the length of stator groove gap of the length of the second pole shoe more than or equal to 1/10th.
Meanwhile in the rotation process along the rotor of motor, it is located at the first pole shoe and the second pole shoe of stator groove gap both sides
Installation position be rotated from the first pole shoe direction to the second pole shoe direction, the setting of the first pole shoe and the second pole shoe
Position is related to the rotation direction of the rotor of motor, can make center line of the center line of notch relative to stator groove gap in this way
For, it is formed by after the center line of stator groove gap is in rotational direction always moved pre-determined distance, is further ensured that generation
Reluctance torque can be effectively to improving motor torque and moment coefficient.
In any of the above-described technical solution, it is preferable that pre-determined distance is more than or equal to 1.5mm.
In the technical scheme, pre-determined distance is set greater than equal to 1.5mm, can be made in stator slot gap in this way
The center line of heart line and notch can have sufficiently long range, be further ensured that the with obvious effects of the promotion of reluctance torque.
In any of the above-described technical solution, it is preferable that the width of the first pole shoe is more than or equal to 0.5mm.
In the technical scheme, the width of the first pole shoe is set greater than equal to 0.5mm, is carrying out the first pole shoe in this way
When processing, the width that can avoid the occurrence of the first pole shoe is excessively narrow and the problem of the processing that occurs is not easy, further avoid
There is the problem of service life can not ensure when the width of first pole shoe is narrow.
In any of the above-described technical solution, it is preferable that stator body includes multiple link blocks, and multiple link blocks are sequentially connected
It connects to constitute column stator body.
In the technical scheme, stator body includes multiple link blocks, and each link block is to join end to end to tap into row successively
Splicing, and is spliced to form column stator body, in this way into when being about to stator body and being connected with stator tooth, it is ensured that
Stator tooth is connected with each link block now, column is spliced to form again after the completion of connection, effectively simplifies preparation work
Skill reduces cost.
In any of the above-described technical solution, it is preferable that the quantity of link block is equal with the quantity of stator tooth, a connection
Block is connected with a stator tooth.
In the technical scheme, the quantity of link block is set as equal with the quantity of stator tooth, will connected in this way
When block is attached with stator tooth, a stator tooth is connected with a link block, in this way it is also possible that needing
When carrying out coiling in stator tooth, first coil windings can be wrapped in stator tooth one by one, then again complete coiling
Stator tooth and link block are spliced, and the notch provided in the present invention in this way is non-positioned at the center of stator groove gap, this
Sample is just not easy line using winding mode in the related technology around entering wherein, therefore is separately positioned on list using by stator tooth
On a link block, convenient for follow-up assembly.
In any of the above-described technical solution, it is preferable that the one side of multiple first pole shoes towards stator groove gap is to be obliquely installed,
So that the width of one end that the first pole shoe is connected with stator tooth is more than the width of the first pole shoe free end.
In the technical scheme, it is to tilt, and inclined surface is towards stator slot to set the first pole shoe at least one side
The one side of gap so that the width of one end that the first pole shoe is connected with stator tooth is more than the width of the first pole shoe free end, by
It is longer in the length of the first pole shoe, and its towards stator groove gap one side in inside, the difficulty of processing in the face in this way is larger, because
Side is obliquely installed by this, ensures the difficult processing that can simplify length longer first pole shoe during material removal makes
Degree.
In any of the above-described technical solution, it is preferable that stator body is an integral structure with stator tooth.
In the technical scheme, stator body is preferably an integral structure with stator tooth, because of the power being an integral structure
It is good to learn performance, it is thus possible to the bonding strength between stator body and stator tooth is improved, in addition, can be by stator body and stator
Double wedge is made into integration, and batch production to improve the processing efficiency of product, reduces the processing cost of product.
In any of the above-described technical solution, it is preferable that stator tooth is one with the first pole shoe and the second pole shoe being connected
Body formula structure.
In the technical scheme, in a stator tooth integral type is set as with the first pole shoe and the second pole shoe being connected
Structure, i.e. each stator tooth are an integral structure with first pole shoe and second pole shoe, because being an integral structure
Mechanical property it is good, it is thus possible to improve the bonding strength between stator tooth and the first pole shoe and the second pole shoe, in addition, can will
Stator tooth is made into integration with the first pole shoe and the second pole shoe, and batch production to improve the processing efficiency of product, reduces product
Processing cost.
The motor provided according to the second aspect of the invention, including coil windings and any of the above-described technical solution are carried
The stator core of confession, therefore, the motor have whole advantageous effects of the stator core of any of the above-described technical solution.
In any of the above-described technical solution, it is preferable that coil windings are arranged in stator groove gap and around being located at stator tooth
On.
The compressor provided according to the third aspect of the invention we, including motor that any of the above-described technical solution is provided
Or stator core, therefore, which has the motor of any of the above-described technical solution or whole advantageous effects of stator core.
Additional aspect and advantage according to the present invention will provide in following description section, partly will be from following description
In become apparent, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows the stator core that one embodiment of the present of invention provides and a schematic diagram of coil windings；
Fig. 2 shows the part of the stator core and coil windings of Fig. 1 one embodiment of the present of invention provided at A to put
Big figure；
Fig. 3 shows a schematic diagram of the stator core that one embodiment of the present of invention provides；
Fig. 4 shows another schematic diagram for the stator core that one embodiment of the present of invention provides；
Fig. 5 shows the stator core that one embodiment of the present of invention provides and another schematic diagram of coil windings；
Fig. 6 shows another schematic diagram for the stator core that one embodiment of the present of invention provides；
Fig. 7 shows that stator core provided by one embodiment of the present invention is same in collocation with the stator core in conventional example
Output torque contrast curve when a octupole rotor；
Fig. 8 shows that stator core provided by one embodiment of the present invention is same in collocation with the stator core in conventional example
Motor iron loss contrast curve when a octupole rotor；
Fig. 9 shows that stator core provided by one embodiment of the present invention is same in collocation with the stator core in conventional example
Output torque contrast curve when a octupole rotor；
Figure 10 shows that stator core provided by one embodiment of the present invention is same in collocation with the stator core in conventional example
Output torque contrast curve when one octupole rotor；
Figure 11 shows that stator core provided by one embodiment of the present invention and the stator core collocation in conventional example are same
A six pole rotor output torque is with the contrast curve when pre-determined distance differs.
Reference numeral：
Wherein, the correspondence in Fig. 1 to Fig. 6 between reference numeral and component names is：
12 stator bodies, 122 link blocks, 14 stator tooths, 16 stator groove gaps, 18 first pole shoes, 20 second pole shoes, 22 slots
Mouthful, 24 coil windings.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
By using other, different from implementing in a manner of described here, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
The stator core provided according to one embodiment of present invention and motor are described referring to Fig. 1 to Figure 11.
As shown in Figures 1 to 6, a kind of stator core provided by the invention, is used for motor, and stator core includes：Stator sheet
Body 12, stator body 12 are in the form of a column；Multiple stator tooths 14, stator tooth 14 along stator body 12 circumferentially-spaced distribution, it is more
Arbitrary neighborhood two in a stator tooth 14 limits stator groove gap 16；Multiple first pole shoes 18 and multiple second pole shoes 20,
It is respectively positioned on the one end of multiple stator tooths 14 far from stator body 12, and any of multiple first pole shoes 18 and multiple the
Any of diode boot 20 is separately positioned on the both sides of any of multiple stator tooths 14, is located at 16 liang of a stator groove gap
First pole shoe 18 of side and the second pole shoe 20 form notch 22, the center line of the center line and notch 22 of adjacent stator groove gap 16
It is parallel and have pre-determined distance.As shown in Fig. 2, L1 be notch 22 center line, L2 be stator groove gap 16 center line, preset away from
From for d.
Stator core provided by the invention includes stator body 12, stator tooth 14, the first pole shoe 18 and the second pole shoe 20,
Stator body 12 is column, and is provided on the inner wall of stator body 12 the more of circumferentially-spaced distribution along stator body 12
A stator tooth 14, each stator tooth 14 are not attached to and have gap so that in two stator tooths of arbitrary neighborhood
Stator groove gap 16, multiple first pole shoes 18 and multiple second pole shoes 20 are limited between 14, and it is remote to be respectively positioned on multiple stator tooths 14
On one end from stator body 12, and respectively it is arranged there are one the first pole shoe 18 and one in the both sides of each stator tooth 14
A second pole shoe 20 has respectively in this way in the both sides of the stator groove gap 16 formed between two adjacent stator tooths 14
There are one the first pole shoe 18 and second pole shoes 20, positioned at first pole shoe 18 of 16 both sides of stator groove gap and one
Second pole shoe 20 is oppositely arranged to form notch 22, so that notch 22 is disposed adjacent with stator groove gap 16, and makes each slot
Mouth 22 is respectively positioned on the open end of stator groove gap 16 adjacent thereto, and the center line of notch 22 is arranged and stator groove gap 16
Center line is parallel but misaligned, due to have between the center of notch 22 and the center line of stator groove gap 16 it is default away from
From, the reluctance torque being sufficiently used in this way caused by rotor magnetic circuit structural asymmetry, when motor is rotated, stator iron
The rotor of core inner makes the reluctance torque of entire motor improve in rotation, can thus not change back emf coefficient
In the case of by increasing reluctance torque improve motor torque and moment coefficient, and then ensure to have when motor rotates higher
Torque output capability.
Pre-determined distance in as shown in Figures 1 to 4 is equal to 1.2mm, and the width of notch is in 2mm, Fig. 5 and Fig. 6 shown
Pre-determined distance be equal to 1.5mm, the width of notch is 3.2mm.
In one embodiment provided by the invention, it is preferable that the length of any of multiple first pole shoes 18 is more than
The length of any of multiple second pole shoes 20 is located at 16 both sides of stator groove gap along the rotation process of the rotor of motor
The installation position of first pole shoe 18 and the second pole shoe 20 is to be turned from 18 direction of the first pole shoe to 20 direction of the second pole shoe
It is dynamic.
In this embodiment, the length all same of multiple first pole shoes 18, the length all same of multiple second pole shoes 20, and
And first pole shoe 18 length be more than the second pole shoe 20 length, it is in this way during setting, two length are different
Pole shoe is set as the both sides of same notch 22, in this way in opposite the first pole shoe 18 and the second pole shoe 20 of the notch of formation 22
Length is different, the notch 22 that 18 and second pole shoe 20 of such first pole shoe is formed when the side wall by stator tooth 14 extends outwardly
Must be misaligned with the center line of stator groove gap 16, and can be by controlling the length of the first pole shoe 18 and the second pole shoe 20 respectively
Degree, to control the position to form notch 22, i.e. the length of the first pole shoe 18 is longer, the notch 22 of formation further away from the first pole shoe
18 root, while the length for limiting the second pole shoe 20 is more than preset value, i.e. the length of the second pole shoe 20 cannot be zero, in this way may be used
Notch 22 to avoid formation is too amesiality and nothing not readily passes through 22 inside coiling winding 24 of cover slot mouth, it is preferable that the
The length of stator groove gap 16 of the length of diode boot 20 more than or equal to 1/10th.
Meanwhile in the rotation process along the rotor of motor, it is located at the first pole shoe 18 and second of 16 both sides of stator groove gap
The installation position of pole shoe 20 be from 18 direction of the first pole shoe to 20 direction of the second pole shoe rotate, i.e. the first pole shoe 18 and
The installation position of second pole shoe 20 is related to the rotation direction of the rotor of motor, the center line of notch 22 can be made opposite in this way
For the center line of stator groove gap 16, the center line of stator groove gap 16 is in rotational direction always moved into institute's shape after pre-determined distance
At, it is further ensured that the reluctance torque of generation can ensure that motor exists effectively to improving motor torque and moment coefficient
Under high rotating speed, there can be larger torque output capability so that motor improves as far as possible in the efficiency of rated point so that compressor
Has overload capacity as high as possible.
In one embodiment provided by the invention, it is preferable that pre-determined distance is more than or equal to 1.5mm.
In this embodiment, pre-determined distance is set greater than equal to 1.5mm, can be made in stator slot gap 16 in this way
Heart line and the center line of notch 22 can have sufficiently long range, be further ensured that the with obvious effects of the promotion of reluctance torque.
In one embodiment provided by the invention, it is preferable that the width of the first pole shoe 18 is more than or equal to 0.5mm.
In this embodiment, the width of the first pole shoe 18 is set greater than equal to 0.5mm, is carrying out the first pole shoe in this way
When 18 processing, the width that can avoid the occurrence of the first pole shoe 18 is excessively narrow and the problem of the processing that occurs is not easy, further keep away
Exempt from the problem of service life can not ensure occur when the width of the first pole shoe 18 is narrow.
As shown in figure 3, in one embodiment provided by the invention, it is preferable that stator body 12 includes multiple link blocks
122, multiple link blocks 122, which are sequentially connected, to be connect to constitute column stator body.
In this embodiment, stator body 12 includes multiple link blocks 122, and each link block 122 is to join end to end successively
Capable splicing is tapped into, and is spliced to form column stator body, is being connected with stator tooth 14 into being about to stator body 12 in this way
When, it is ensured that stator tooth 14 is connected with each link block 122 now, column is spliced to form again after the completion of connection, has
Effect simplifies preparation process, reduces cost.
In one embodiment provided by the invention, it is preferable that the quantity phase of the quantity of link block 122 and stator tooth 14
Deng a link block 122 is connected with a stator tooth 14.
In this embodiment, the quantity of link block 122 is set as equal with the quantity of stator tooth 14, will connected in this way
When connecing block 122 and stator tooth 14 and being attached, a stator tooth 14 is connected with a link block 122, in this way can be with
So that needing, when carrying out coiling in stator tooth 14, first coil windings 24 can be wrapped in one by one in stator tooth 14,
Then stator tooth 14 and link block 122 that coiling is completed are spliced again, the notch 22 provided in the present invention in this way is non-
Positioned at the center of stator groove gap 16, in this way using winding mode in the related technology be just not easy by line around enter wherein, because
Stator tooth 14 using being separately positioned on single link block 122 by this, convenient for follow-up assembly.
In one embodiment provided by the invention, it is preferable that one side of multiple first pole shoes 18 towards stator groove gap 16
To be obliquely installed so that the width of one end that the first pole shoe 18 is connected with stator tooth 14 is more than 18 free end of the first pole shoe
Width.
Preferably, the width of stator tooth 14 is more than or equal to the thickness of stator body 12, and then can ensure stator tooth
14 stable structure.
In this embodiment, it is to tilt, and inclined surface is towards stator slot to set the first pole shoe 18 at least one side
The one side of gap 16 so that the width of one end that the first pole shoe 18 is connected with stator tooth 14 is more than 18 free end of the first pole shoe
Width, since the length of the first pole shoe 18 is longer, and its towards stator groove gap 16 one side in inside, the in this way processing in the face
Difficulty is larger, therefore side is obliquely installed, and ensures that length longer first can be simplified during material removal makes
The difficulty of processing of pole shoe 18.
In one embodiment provided by the invention, it is preferable that stator body 12 is an integral structure with stator tooth 14.
In this embodiment, stator body 12 is preferably an integral structure with stator tooth 14, because what is be an integral structure
Mechanical property is good, it is thus possible to the bonding strength between stator body 12 and stator tooth 14 is improved, in addition, can be by stator body
12 are made into integration with stator tooth 14, and batch production to improve the processing efficiency of product, reduces the processing cost of product.
In one embodiment provided by the invention, it is preferable that stator tooth 14 and the first pole shoe 18 being connected and
Diode boot 20 is an integral structure.
In this embodiment, in a stator tooth 14 one is set as with the first pole shoe 18 and the second pole shoe 20 being connected
Body formula structure, i.e. each stator tooth 14 are an integral structure with first pole shoe 18 and second pole shoe 20, because
The mechanical property of integral structure is good, it is thus possible to improve the company between stator tooth 14 and the first pole shoe 18 and the second pole shoe 20
Intensity is connect, in addition, stator tooth 14 and the first pole shoe 18 and the second pole shoe 20 can be made into integration, is produced in batches, to improve production
The processing efficiency of product reduces the processing cost of product.
The motor provided according to the second aspect of the invention, including coil windings 24 and any of the above-described technical solution institute
The stator core of offer, therefore, the motor have whole advantageous effects of the stator core of any of the above-described technical solution.
In one embodiment provided by the invention, it is preferable that coil windings 24 are arranged in stator groove gap 16 and winding
In stator tooth 14.Preferably, coil windings are the concentrating winding group that pitch is 1.Since notch 22 deviates stator groove gap 16
Center, it is therefore desirable to using concentrate volume embedding method realize coiling.
The compressor provided according to the third aspect of the invention we, including motor that any of the above-described technical solution is provided
Or stator core, therefore, which has the motor of any of the above-described technical solution or whole advantageous effects of stator core.
Embodiment：
In the case that Fig. 7 is same electric current, the output torque comparison diagram of motor.Specially turned using the same octupole
Son, existing embodiment of arranging in pairs or groups respectively and stator core shown in FIG. 1, when calculating different rotor position, the output torque of motor.From
Fig. 7 can be seen that torque when whether rotor position angle is 0 °, or the torque capacity changed with torque position angle.It adopts
With the embodiment of the present invention namely stator core shown in FIG. 1, output torque compares conventional example, is all significantly improved.
In the case that Fig. 8 is same electric current, the iron loss comparison diagram of motor.The rotor of the same octupole is specially used, point
Existing embodiment of not arranging in pairs or groups and stator core shown in FIG. 1, when calculating different rotor position, the iron loss of motor.It can from Fig. 8
Go out, iron loss when whether rotor position angle is 0 °, or iron loss when output torque capacity.Using the embodiment of the present invention,
Stator core i.e. shown in FIG. 1, motor iron loss compared with prior art, there is apparent reduction.
Therefore, the present invention maintains flute profile constant in the 12 slot motor of octupole of offer relative in conventional example, and notch is suitable
Direction of rotation offset, the copper loss and iron loss of motor can all significantly decrease, and in the case where not increasing cost, realize electricity
The promotion of engine efficiency, and the control mode of Id=0 is whether used, or using the control mode of Max T/I, have identical
Effect.
In the case that Fig. 9 is same electric current, the output torque comparison diagram of motor.Specially turned using the same sextupole
Son, the only different stator core of notch position in the stator core and conventional example of the Fig. 6 of the present invention of arranging in pairs or groups.Calculate different rotor position
When setting, the output torque of motor.From fig. 9, it can be seen that torque when whether rotor position angle is 0 °, or with torque position
The torque capacity of angle setting variation.Using the embodiment of the present invention namely stator core shown in FIG. 1, output torque compares conventional example,
All it is significantly improved,
In the case that Figure 10 is same electric current, the iron loss comparison diagram of motor.The rotor for specially using the same sextupole, takes
The only different stator core of notch position in stator core and conventional example with Fig. 6 of the present invention.When calculating different rotor position,
The iron loss of motor.From fig. 10 it can be seen that iron loss when whether rotor position angle is 0 °, or export the iron of torque capacity
Damage.Using the embodiment of the present invention namely stator core shown in FIG. 1, iron loss compares the motor of notch face, has and significantly carry
It is high.
Figure 11 is to be calculated in different pre-determined distances, the output torque of motor using in the case where rotor is constant
With the situation of change of rotor-position.It is 1.2mm that wherein the present embodiment 1, which is pre-determined distance, and the present embodiment 2 is for pre-determined distance
1.8mm, the present embodiment 3 are that pre-determined distance is 2.4mm, it can be seen from figure 11 that with the increasing of pre-determined distance, motor is in rotor
When angle is 0 °, output torque increases with pre-determined distance and is increased.
In the description of this specification, the orientation or positional relationship of the instructions such as term "upper", "lower" is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention；
Term " connection ", " installation ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be can
Dismantling connection, or be integrally connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of stator core is used for motor, which is characterized in that the stator core includes：
Stator body, the stator body are in the form of a column；
Multiple stator tooths, the stator tooth along the stator body circumferentially-spaced distribution, in the multiple stator tooth
Arbitrary neighborhood two limit stator groove gap；And
Multiple first pole shoes and multiple second pole shoes, are respectively positioned on the one end of the multiple stator tooth far from the stator body
On, and any of any of the multiple first pole shoe and the multiple second pole shoe be separately positioned on it is the multiple
The both sides of any of stator tooth are located at first pole shoe of stator groove gap both sides and the second pole shoe shape
At notch, the adjacent center line of the stator groove gap is with the centerline parallel of the notch and with pre-determined distance.
2. stator core according to claim 1, which is characterized in that
The length of any of the multiple first pole shoe is more than the length of any of the multiple second pole shoe, along institute
In the rotation process for stating the rotor of motor, positioned at first pole shoe of stator groove gap both sides and setting for second pole shoe
Seated position is to be rotated from the first pole shoe direction to the second pole shoe direction.
3. stator core according to claim 1, which is characterized in that
The pre-determined distance is more than or equal to 1.5mm.
4. stator core according to claim 1, which is characterized in that
The width of first pole shoe is more than or equal to 0.5mm.
5. stator core according to any one of claim 1 to 4, which is characterized in that
The stator body includes multiple link blocks, and the multiple link block, which is sequentially connected, to be connect to constitute column stator body.
6. stator core according to claim 5, which is characterized in that
The quantity of the link block is equal with the quantity of the stator tooth, a link block and a stator tooth
It is connected.
7. stator core according to claim 5, which is characterized in that
The multiple first pole shoe towards the stator groove gap one side be obliquely installed so that first pole shoe with it is described fixed
The width of one end that sub- double wedge is connected is more than the width of the free end of first pole shoe.
8. stator core according to claim 1, which is characterized in that
The stator body is an integral structure with the stator tooth；And/or
The stator tooth is an integral structure with first pole shoe and second pole shoe being connected.
9. a kind of motor, which is characterized in that the motor includes stator core described in any item of the claim 1 to 8, and
Coil windings, the coil windings are arranged in the stator groove gap and around being located in the stator tooth.
10. a kind of compressor, which is characterized in that the motor include stator core described in any item of the claim 1 to 8 or
Including the motor described in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630683.7A CN108768005A (en) | 2018-06-19 | 2018-06-19 | Stator core, motor and compressor |
| PCT/CN2018/111663 WO2019242183A1 (en) | 2018-06-19 | 2018-10-24 | Stator iron core, electric motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630683.7A CN108768005A (en) | 2018-06-19 | 2018-06-19 | Stator core, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108768005A true CN108768005A (en) | 2018-11-06 |
Family
ID=63978776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810630683.7A Pending CN108768005A (en) | 2018-06-19 | 2018-06-19 | Stator core, motor and compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108768005A (en) |
| WO (1) | WO2019242183A1 (en) |
Cited By (8)
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| CN109193992A (en) * | 2018-11-26 | 2019-01-11 | 史政齐 | The modularized motor of the high copper factor winding of the pre- coiling of electric car |
| CN109450126A (en) * | 2018-11-26 | 2019-03-08 | 史政齐 | The short square winding electric machine of the short magnetic circuit of electric vehicle |
| CN109586429A (en) * | 2018-11-28 | 2019-04-05 | 南京航空航天大学 | Based on every tooth winding and equal stator tooths away from fault tolerant permanent magnet machine |
| CN112491168A (en) * | 2020-11-25 | 2021-03-12 | 广州橙行智动汽车科技有限公司 | Motor stator and driving motor |
| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN112910115A (en) * | 2021-01-11 | 2021-06-04 | 广州橙行智动汽车科技有限公司 | Stator, motor and car |
| CN113300500A (en) * | 2021-05-17 | 2021-08-24 | 安徽威灵汽车部件有限公司 | Stator, motor, compressor and vehicle |
| WO2021187820A1 (en) * | 2020-03-16 | 2021-09-23 | 계명대학교 산학협력단 | Motor using asymmetric stator shoes and manufacturing method therefor |
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| CN109450126B (en) * | 2018-11-26 | 2021-06-01 | 陕西专壹知识产权运营有限公司 | Short magnetic circuit short-moment winding motor of electric vehicle |
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| CN109193992A (en) * | 2018-11-26 | 2019-01-11 | 史政齐 | The modularized motor of the high copper factor winding of the pre- coiling of electric car |
| CN109586429A (en) * | 2018-11-28 | 2019-04-05 | 南京航空航天大学 | Based on every tooth winding and equal stator tooths away from fault tolerant permanent magnet machine |
| WO2021187820A1 (en) * | 2020-03-16 | 2021-09-23 | 계명대학교 산학협력단 | Motor using asymmetric stator shoes and manufacturing method therefor |
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| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN112688444B (en) * | 2020-12-11 | 2021-11-26 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN112910115A (en) * | 2021-01-11 | 2021-06-04 | 广州橙行智动汽车科技有限公司 | Stator, motor and car |
| CN113300500A (en) * | 2021-05-17 | 2021-08-24 | 安徽威灵汽车部件有限公司 | Stator, motor, compressor and vehicle |
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| WO2019242183A1 (en) | 2019-12-26 |
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Effective date of registration: 20190515 Address after: 528311 Building No. 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Welling Automobile Parts Co., Ltd. Address before: 241000 No. 3 Taishan Road, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province Applicant before: Anhui Meizhi Precision Manufacturing Co., Ltd. |
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Application publication date: 20181106 |
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