CN205864088U - Stator, motor and air-conditioner - Google Patents
Stator, motor and air-conditioner Download PDFInfo
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- CN205864088U CN205864088U CN201620624036.1U CN201620624036U CN205864088U CN 205864088 U CN205864088 U CN 205864088U CN 201620624036 U CN201620624036 U CN 201620624036U CN 205864088 U CN205864088 U CN 205864088U
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- flume structure
- stator
- flume
- motor
- bobbin
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Abstract
This utility model provides a kind of stator, motor and air-conditioner, and wherein, stator includes: multiple bobbins, and multiple bobbins interconnect and form loop configuration；Flume structure, be arranged on bobbin towards on the surface of the centrage of loop configuration, wherein, flume structure includes the first flume structure and the second flume structure, the incline direction of the first flume structure and the incline direction of the second flume structure are contrary, it is provided with the first flume structure on a part of bobbin in multiple bobbins, another part bobbin is provided with the second flume structure.The technical solution of the utility model solves motor of the prior art and is easily generated cogging torque, and the problem affecting the performance of motor.
Description
Technical field
This utility model relates to technical field of refrigeration equipment, in particular to a kind of stator, motor and air-conditioner.
Background technology
Along with the continuous lifting of permanent magnetic material performance, permanent-magnet brushless DC electric machine is applied to high performance more and more widely
Speed and position control system.But in permanent-magnet brushless DC electric machine, when rotor exists relative motion, it is in permanent magnet
Magnetic conductance between the stator iron core tooth of polar arc part and permanent magnet is basically unchanged, and therefore the magnetic field around stator iron core tooth is with basic
Constant, and in a bit of region being made up of one or two tooth corresponding with the two sides of permanent magnet, magnetic conductance changes greatly, draws
The change of magnetizing field energy storage, thus produce cogging torque, cause torque ripple, cause vibrations and noise, affect the control of system
Precision.Therefore, reducing cogging torque is the key that must solve during high-performance permanent magnet brshless DC motor manufactures and designs Yu consider
Problem.
Utility model content
Main purpose of the present utility model is to provide a kind of stator, motor and air-conditioner, of the prior art to solve
Motor is easily generated cogging torque, and the problem affecting the performance of motor.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of stator, including: multiple around
Line skeleton, multiple bobbins interconnect and form loop configuration；Flume structure, be arranged on bobbin towards ring junction
On the surface of the centrage of structure, wherein, flume structure includes the first flume structure and the second flume structure, the first flume structure
The incline direction of incline direction and the second flume structure is contrary, and a part of bobbin in multiple bobbins is provided with the
One flume structure, another part bobbin is provided with the second flume structure.
Further, each bobbin is provided with flume structure.
Further, the first flume structure is multiple, and the second flume structure is multiple.
Further, it is provided with one or more the second flume structure between two adjacent the first flume structures.
Further, the end face at the two ends along centerline direction of the through bobbin in the two ends of flume structure.
Further, the cross section of flume structure is polygon or circle.
Further, each first flume structure is equal with the angle of centrage.
Further, each second flume structure is equal with the angle of centrage.
Further, the quantity with the second flume structure of the first flume structure is equal.
Further, bobbin includes: inner panel and outside plate；Wire-wrap board, connects between the inner plate and the outer plate, wherein, tiltedly
Groove structure is arranged on the surface towards centrage of inner panel.
According to another aspect of the present utility model, it is provided that a kind of motor, including stator, stator is above-mentioned stator.
According to another aspect of the present utility model, it is provided that a kind of air-conditioner, including motor, motor is above-mentioned motor.
Application the technical solution of the utility model, by arranging flume structure on the bobbin of stator, it is possible to effectively
Ground reduces the cogging torque of motor.Flume structure includes the first flume structure and the second skewed slot knot that incline direction is contrary simultaneously
Structure, therefore air can make stator keep stress balance after stream is by the first flume structure and the second flume structure, and then makes
Obtain the more stable of motor rotation.Therefore the technical solution of the utility model solves motor the most of the prior art and is easily generated tooth
Groove torque, and the problem affecting the performance of motor.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality
Novel schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model.
In the accompanying drawings:
Fig. 1 shows the perspective view of the embodiment according to stator of the present utility model；
Fig. 2 shows the air circulation schematic diagram of Fig. 1 stator；
Fig. 3 shows the expansion schematic diagram of the bobbin of stator in Fig. 1；
Fig. 4 shows the schematic front view of stator in Fig. 3；And
Fig. 5 shows the schematic top plan view of stator in Fig. 3.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, bobbin；11, inner panel；12, outside plate；13, wire-wrap board；20, flume structure；21, the first flume structure；22、
Second flume structure.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Describe, it is clear that described embodiment is only some embodiments of the present application rather than whole embodiments wholely.Below
Description only actually at least one exemplary embodiment is illustrative, and never conduct to the application and application thereof or makes
Any restriction.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of the application protection.
It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to restricted root
Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when using term " to comprise " in this manual and/or " bag
Include " time, it indicates existing characteristics, step, operation, device, assembly and/or combinations thereof.
Unless specifically stated otherwise, the parts illustrated the most in these embodiments and the table positioned opposite, digital of step
Reach formula and numerical value is not intended to scope of the present application.Simultaneously, it should be appreciated that for the ease of describing, each portion shown in accompanying drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered to authorize explanation
A part for book.It is shown here that any occurrence should be construed as merely exemplary with in all examples discussed, and
Not by way of limitation.Therefore, other example of exemplary embodiment can have different values.It should also be noted that similar label
In following accompanying drawing, represent similar terms with letter, therefore, the most a certain Xiang Yi accompanying drawing is defined, then attached subsequently
Figure need not it is further discussed.
In the description of the present application, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal, vertical,
Vertically, level " and the indicated orientation such as " top, the end " or position relationship be normally based on orientation shown in the drawings or position and close
System, is for only for ease of description the application and simplifies description, and in the case of illustrating on the contrary, these nouns of locality do not indicate that
Must have specific orientation or with specific azimuth configuration and operation with device or the element of hint indication, therefore can not manage
Solve as the restriction to the application protection domain；The noun of locality " inside and outside " refers to inside and outside the profile relative to each parts itself.
For the ease of describing, space relative terms here can be used, as " ... on ", " ... top ",
" at ... upper surface ", " above " etc., be used for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms is intended to comprise except the described in the drawings orientation of device
Outside different azimuth in use or operation.Such as, if the device in accompanying drawing is squeezed, then it is described as " at other devices
Part or structure above " or " other devices or structure on " device after will be positioned as " other devices or construct under
Side " or " under other devices or structure ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.This device can also other different modes location (90-degree rotation or be in other orientation), and
And space used herein above described relatively make respective explanations.
Furthermore, it is necessary to explanation, the word such as " first ", " second " is used to limit parts, it is only for be easy to
Distinguishing corresponding parts, as not having Stated otherwise, above-mentioned word does not has particular meaning, therefore it is not intended that to this
The restriction of application protection domain.
Along with the continuous lifting of permanent magnetic material performance, permanent-magnet brushless DC electric machine is applied to high performance more and more widely
Speed and position control system.But in permanent-magnet brushless DC electric machine, when rotor exists relative motion, it is in permanent magnet
Magnetic conductance between the stator iron core tooth of polar arc part and permanent magnet is basically unchanged, and therefore the magnetic field around stator iron core tooth is with basic
Constant, and in a bit of region being made up of one or two tooth corresponding with the two sides of permanent magnet, magnetic conductance changes greatly, draws
The change of magnetizing field energy storage, thus produce cogging torque, cause torque ripple, cause vibrations and noise, affect the control of system
Precision.Therefore, reducing cogging torque is the key that must solve during high-performance permanent magnet brshless DC motor manufactures and designs Yu consider
Problem.This application provides a kind of stator that can reduce cogging torque, concrete structure is as follows:
As it is shown in figure 1, a kind of stator of the present embodiment includes multiple bobbin 10 and flume structure 20.Wherein, multiple
Bobbin 10 interconnects and forms loop configuration.Flume structure 20 be arranged on bobbin 10 towards in loop configuration
On the surface of heart line, flume structure 20 includes the first flume structure 21 and the second flume structure 22, inclining of the first flume structure 21
The incline direction of tilted direction and the second flume structure 22 is contrary, and a part of bobbin 10 in multiple bobbins 10 is arranged
There is the first flume structure 21, another part bobbin 10 is provided with the second flume structure 22.
The technical scheme of application the present embodiment, by arranging flume structure 20, it is possible to have on the bobbin 10 of stator
Effect ground reduces the cogging torque of motor.Flume structure 20 includes that the first flume structure 21 and second that incline direction is contrary is oblique simultaneously
Groove structure 22, therefore air can make stator keep stress to put down after stream is by the first flume structure 21 and the second flume structure 22
Weighing apparatus, and then make the more stable of motor rotation.Therefore the technical scheme of the present embodiment solves motor the most of the prior art
It is easily generated cogging torque, and the problem affecting the performance of motor.
It should be noted that above-mentioned incline direction refers on the contrary, with the first flume structure 21 and the second flume structure 22
Upper end as a example by, the upper end deflection to the left of the first flume structure 21, the upper end deflection to the right of the second flume structure 22.Therefore first
Flume structure 21 is for being tilted to the left, and the second flume structure 22 is for being tilted to the right.
Flume structure 20 is described below and reduces the principle of motor cogging torque.
The motor gas-gap of flume structure 20 and the magnetic field energy of permanent magnetism body weight is not had to be:
Formula 1:
The motor cogging torque expression formula not having a flume structure 20 is:
Formula 2:
When arranging flume structure 20, the magnetic field energy in motor gas-gap and permanent magnet is:
Formula 3:
When arranging flume structure 20, cogging torque expression formula is:
Formula 4:
In above-mentioned formula: Br(θ) it is permanent magnet residual magnetism；δ (θ, α) is effective air gap length；hm(θ) it is that permanent magnet fills
The distribution along the circumferential direction of magnetic direction length；α is tooth center and angle in the heart in permanent magnet, the i.e. relative position of rotor；
La is that stacked stator core is high；Z is stator core slot number；R1、R2It is respectively stator core external diameter and stator yoke inside radius；P is the most right
Number；N is the integer making nz/2p be integer；NSFor skewed slot number；θS1The stator tooth represented with radian away from.
During by formula 1 and formula 2 it can be seen that be not provided with flume structure 20, each term coefficient of cogging torque is intrinsic coefficient,
Can only by other means reduce cogging torque but can not be 0.By formula 2 and formula 3 it will be seen that arrange flume structure 20
After, cogging torque can eliminate n-th harmonic therein, only needs orderBe 0, i.e. NSForIntegral multiple.Selecting NS
Time, first having to weaken number of times is Np(NpFor number of poles, the ratio of groove number and number of poles greatest common divisor) cogging torque harmonic wave, i.e.HaveCan be seen that and work asTime, as long as controlling skewed slot inclined teeth well
Away from, each cogging torque harmonic wave all can be eliminated, and the most there is not cogging torque.But it should be recognized that in engineering reality, pass through
Optimize the reduction cogging torque that above-mentioned parameter can be tried one's best, but cogging torque can not be completely eliminated.E=4.44Nkf Φ,
Wherein E is back EMF coefficient, and N is umber of turn, and f is electricity frequency, and Φ is magnetic flux.Stator core oblique notches, and wherein N, K, f are equal
Constant, the amplitude of Φ reduces, therefore counter electromotive force reduces.
As in figure 2 it is shown, in the technical scheme of the present embodiment, each bobbin 10 is provided with flume structure 20.
Specifically, each bobbin 10 is respectively provided with flume structure 20 and can be effectively reduced cogging torque.Certainly, not shown
Embodiment in.Flume structure 20 can also be provided with in a part in multiple bobbins 10.Flume structure 20
Concrete set-up mode those skilled in the art can need to determine according to real work.
As in figure 2 it is shown, in the technical scheme of the present embodiment, the first flume structure 21 is multiple, the second flume structure 22
For multiple.Specifically, the component that air produces when by the first flume structure 21 and the second flume structure 22 is contrary, the most
Individual first flume structure 21 and multiple second flume structure 22 can allow the more stable operation of motor.
As depicted in figs. 1 and 2, in the technical scheme of the present embodiment, set between two adjacent the first flume structures 21
It is equipped with one or more the second flume structure 22.Preferably, the first flume structure 21 in the present embodiment and the second skewed slot knot
Structure 22 is arranged successively.Said structure enables to the first flume structure 21 and the second flume structure 22 joins end to end and formed logical
Road.Air-flow can flow when by the first flume structure 21 and the second flume structure 22 in path, and then makes the stream of air-flow
Dynamic more mild, and the even running of beneficially motor.Specifically, the dotted line in Fig. 2 is air-flow at the first flume structure 21
With the flow direction schematic diagram of the second flume structure 22, from fig. 2 it can be seen that air-flow from the lower end of the first flume structure 21 flow
Enter to the lower end of the second flume structure 22 after going out, and enter to adjacent the after the upper end of the second flume structure 22 is flowed out
One flume structure 21, and ultimately form and circulate.Certainly, the first flume structure 21 and arrangement of the second flume structure 22
It is not limited to this, in a not shown embodiment, between the first adjacent flume structure 21, multiple second skewed slot can also be set
Structure 22.
As shown in Figures 3 to 5, in the technical scheme of the present embodiment, the through bobbin in two ends 10 of flume structure 20
The end face at the two ends along centerline direction.Fig. 3 is the expansion schematic diagram of the bobbin 10 of stator in Fig. 1.Can from Fig. 4
Arrive, two end faces of the above-below direction of the through bobbin in two ends 10 of flume structure 20.
As it is shown in figure 5, in the technical scheme of the present embodiment, the cross section of flume structure 20 is polygon or circle.
Sectional view those skilled in the art of flume structure 20 can need to determine according to real work.
As shown in Figure 1 and Figure 4, each first flume structure 21 is equal with the angle of the centrage of stator.Each second skewed slot knot
Structure 22 is equal with the angle of stator center line.Specifically, from fig. 4 it can be seen that after multiple bobbins 10 are launched, each
It is arranged in parallel between one flume structure 21, be arranged in parallel between each second flume structure 22.Said structure makes the structure of stator
More regular, also allow for manufacturing simultaneously.
As it is shown in figure 1, in the technical scheme of the present embodiment, the number with the second flume structure 22 of the first flume structure 21
Measure equal.Specifically, the quantity of the first flume structure 21 and the second flume structure 22 is six.When multiple bobbin 10 rings
When being coiled into loop configuration, the first flume structure 21 and the second flume structure 22 quantity is equal can ensure that the first flume structure 21 He
All join end to end between second flume structure 22, and form continuous print passage.
As shown in figures 1 and 3, at the present embodiment with regard in technical scheme, bobbin 10 includes inner panel 11, outside plate 12 and
Wire-wrap board 13.Wire-wrap board 13 is connected between inner panel 11 and outside plate 12, wherein, flume structure 20 be arranged on inner panel 11 towards in
On the surface of heart line.When multiple bobbins 10 surround into annular, inner panel 11 forms the internal ring of stator, and outside plate 12 forms stator
Outer shroud.
Present invention also provides a kind of motor, include stator according to the embodiment of the motor of the application, stator is above-mentioned
Stator.
Present invention also provides a kind of air-conditioner, include motor according to the embodiment of the air-conditioner of the application, motor is upper
The motor stated.
According to said structure, the stator of the application has a following characteristics:
The application is made that corresponding solution according to problems of the prior art.It is different from tradition chain type stator
Iron core, this chain type stator core is structurally made perfect, specific as follows:
This stator core construction is chain type such as Fig. 3, and chain type core structure automaticity is high, can realize higher copper factor and want
Asking, be provided with stator core the first flume structure 21 and the second flume structure 22 at inner surface, the first flume structure 21 is oblique with second
Groove structure 22 connects upper and lower two end faces, and the first flume structure 21 is identical with the second flume structure 22 shape and structure, the only side of inclination
To difference；Relative to the advantage of single direction skewed slot, biassed fabric is that air gap is more uniform, in Practical Project, at motor
It is during operation, owing to one direction flume structure is formed without path, identical to the mobility of air and the stator of unslotted,
Causing rotor at the volley by force unbalance, thus cause motor gas-gap uneven, non-uniform air-gap also can affect teeth groove
The size of torque and distribution, this chain type iron core can its structure of Cheng Yuan, Cheng Yuanhou as shown in Figure 1.
This structure greatly reduces cogging torque in motor operation course, and the macro manifestations of cogging torque is vibrations
With noise, therefore use this kind of stator core construction can weaken produced vibrations and noise during motor runs；At N, K, f the most not
In the case of change, magnetic flux is directly proportional to counter electromotive force, and magnetic flux reduces and i.e. reduces counter electromotive force, and current permanent-magnet brushless DC electric machine is many
Use electric machine built-in control circuit direct speed regulating control motor, therefore counter electromotive force exists destruction built-in control circuit electronic devices and components
Possibility, cause motor reliability to reduce, reduce counter electromotive force, motor quality and complete machine operational reliability can be improved；
Relative to the advantage of single direction skewed slot, flume structure is that air gap is more uniform, in Practical Project,
Mobility and the stator of unslotted during motor runs, owing to one direction flume structure is formed without path, to air
Iron core is identical, causes rotor at the volley by force unbalance, thus causes motor gas-gap uneven, and non-uniform air-gap can be straight
Connect size and the distribution affecting cogging torque, and the structure of skewed slot is formed the path of a Guan Bi in the stator (such as Fig. 4 institute
Show), air flows in the path formed, and from the angle analysis of mechanics, so can improve rotor in motor process
The unbalanced phenomenon of stress, so that the air gap of motor is the most uniform.More uniform to the motor gas-gap of flume structure,
Skewed slot to be more better than one direction flume structure to the weakening effect of cogging torque.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (12)
1. a stator, it is characterised in that including:
Multiple bobbins (10), multiple described bobbins (10) interconnect and form loop configuration；
Flume structure (20), is arranged on the surface towards the centrage of described loop configuration of described bobbin (10),
Wherein, described flume structure (20) includes the first flume structure (21) and the second flume structure (22), described first skewed slot
The incline direction of structure (21) and the incline direction of described second flume structure (22) are contrary, in multiple described bobbins (10)
A part described in be provided with described first flume structure (21) on bobbin (10), bobbin (10) described in another part
On be provided with described second flume structure (22).
Stator the most according to claim 1, it is characterised in that be provided with on each described bobbin (10) described tiltedly
Groove structure (20).
Stator the most according to claim 1 and 2, it is characterised in that described first flume structure (21) is multiple, described
Two flume structures (22) are multiple.
Stator the most according to claim 1, it is characterised in that set between two adjacent described first flume structures (21)
It is equipped with one or more described second flume structure (22).
Stator the most according to claim 1, it is characterised in that the through described coiling bone in two ends of described flume structure (20)
The end face at the two ends along described centerline direction of frame (10).
Stator the most according to claim 1, it is characterised in that the cross section of described flume structure (20) be polygon or
Circular.
Stator the most according to claim 3, it is characterised in that each described first flume structure (21) and described centrage
Angle is equal.
Stator the most according to claim 3, it is characterised in that each described second flume structure (22) and described centrage
Angle is equal.
Stator the most according to claim 3, it is characterised in that described first flume structure (21) with described second skewed slot
The quantity of structure (22) is equal.
Stator the most according to claim 1, it is characterised in that described bobbin (10) including:
Inner panel (11) and outside plate (12)；
Wire-wrap board (13), is connected between described inner panel (11) and outside plate (12),
Wherein, described flume structure (20) is arranged on the surface towards described centrage of described inner panel (11).
11. 1 kinds of motors, including stator, it is characterised in that described stator is determining according to any one of claim 1 to 10
Son.
12. 1 kinds of air-conditioners, including motor, it is characterised in that described motor is the motor described in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624036.1U CN205864088U (en) | 2016-06-20 | 2016-06-20 | Stator, motor and air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624036.1U CN205864088U (en) | 2016-06-20 | 2016-06-20 | Stator, motor and air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205864088U true CN205864088U (en) | 2017-01-04 |
Family
ID=57637070
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620624036.1U Expired - Fee Related CN205864088U (en) | 2016-06-20 | 2016-06-20 | Stator, motor and air-conditioner |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914911A (en) * | 2016-06-20 | 2016-08-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator, electric motor and air conditioner |
| CN115940559A (en) * | 2022-11-21 | 2023-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Stator offset type doubly salient permanent magnet motor |
-
2016
- 2016-06-20 CN CN201620624036.1U patent/CN205864088U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914911A (en) * | 2016-06-20 | 2016-08-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator, electric motor and air conditioner |
| CN105914911B (en) * | 2016-06-20 | 2018-12-07 | 珠海格力电器股份有限公司 | Stator, motor and air conditioner |
| CN115940559A (en) * | 2022-11-21 | 2023-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Stator offset type doubly salient permanent magnet motor |
| CN115940559B (en) * | 2022-11-21 | 2024-07-05 | 中国电建集团华东勘测设计研究院有限公司 | Stator offset type doubly salient permanent magnet motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |