CN206742981U - Motor stator, magneto and compressor - Google Patents
Motor stator, magneto and compressor Download PDFInfo
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- CN206742981U CN206742981U CN201720625160.4U CN201720625160U CN206742981U CN 206742981 U CN206742981 U CN 206742981U CN 201720625160 U CN201720625160 U CN 201720625160U CN 206742981 U CN206742981 U CN 206742981U
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Abstract
The utility model discloses a kind of motor stator, magneto and compressor, motor stator includes：Stator core, stator core has multiple limits stator slot along its circumferentially spaced stator tooth, two neighboring stator tooth；Stator winding, stator winding is around being located at stator tooth and have at least two joints including multiple coil groups, each coil group；For connecting the lead-out wire of external circuit and stator winding, lead-out wire includes the joint connection of more and every lead-out wire coil group different from least two, wherein, the rated voltage carried between the terminal of motor is Un, the maximum outside diameter of stator core is Dmax, the axial length of stator core is L, Un/ (Dmax2×L)≤0.3V/cm3.According to the motor stator of the utility model embodiment, the manufacturing of stator winding can be improved, effectively improve the copper factor of motor, while the AC resistance of stator winding can be reduced, so as to reduce kelvin effect, lifting motor efficiency.
Description
Technical field
Compressor Technology field is the utility model is related to, more particularly, to a kind of motor stator, magneto and pressure
Contracting machine.
Background technology
Compressor electric motor typically presses the star connection with neutral point and connects each phase, without using more without neutral point
Side shape connection.However, with the development of Compressor Technology and the popularization in compressor application field, in some voltage/motor volumes
Less application scenario, motor have larger electric current, therefore in the related art, it is necessary to set larger conductor area to protect
Card current density be in confidence band, i.e., the thicker conductor of stator winding generally use diameter or more conductors and around.It is and thick
Simultaneously winding technologe difficulty is big for conductor coiling or more conductors, can not mass production while reliability is ensured.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries
Go out a kind of motor stator, the motor stator is processed, be easy to manufacture.
The utility model also proposes a kind of magneto with above-mentioned motor stator.
The utility model also proposes a kind of compressor with above-mentioned magneto.
According to the utility model first aspect embodiment motor stator, including：Stator core, the stator core have more
It is individual to limit stator slot along its circumferentially spaced stator tooth, the two neighboring stator tooth；Stator winding, the stator around
Group is around being located at the stator tooth and including multiple coil groups, each coil group has at least two joints；It is outer for connecting
The lead-out wire of circuit and the stator winding, the lead-out wire include more and the every lead-out wire and at least two not collinear
The joint connection of circle group, wherein, it is Un to carry the rated voltage between the terminal of the motor, the maximum outside diameter of the stator core
For Dmax, the axial length of the stator core is L, Un/ (Dmax2×L)≤0.3V/cm3。
According to the motor stator of the utility model embodiment, terminal voltage, stator core maximum outside diameter in motor and
Axial length meets in the occasion of the utility model application, by the way that every lead-out wire is come from into different coils from least two
The joint connection of group, can reduce the coil diameter of stator winding, so as to improve the manufacturing of stator winding, effectively improve
The copper factor of motor, while the AC resistance of stator winding can be reduced, so as to reduce kelvin effect, lifting motor efficiency.
According to one embodiment of the present utility model, the quantity of the coil group is equal with the quantity of the lead-out wire.
According to one embodiment of the present utility model, the stator winding includes first coil group, the second coil group and the
Three-winding group, the lead-out wire include three.
Alternatively, each coil group has the 2n joints, wherein, n is positive integer, first lead-out wire and institute
State the n joint connection of the n joint, the second coil group of first coil group, second lead-out wire and the first coil
The another n joint of group, the n joint connection of the tertiary coil group, the 3rd lead-out wire and the another n of the second coil group are individual
The another n joint connection of joint, the tertiary coil group.
According to one embodiment of the present utility model, the stator winding is centralized winding or distributed winding.
According to one embodiment of the present utility model, the stator winding uses the connected mode without neutral point, simplifies
The connection process of stator winding and lead-out wire.In the case where ensureing the identical voltage-current characteristic of motor, it is fixed suitably to reduce
The coil diameter of sub- winding, so as to improve the manufacturing of stator winding, straight the material cost and manufacturing cost of stator winding are reduced, together
When can also reduce kelvin effect, reduce the AC resistance of stator winding, lifting motor efficiency.
According to one embodiment of the present utility model, the lead-out wire is connected by terminal box or conductive insert with external circuit
Connect.
Alternatively, the quantity of the stator slot is 3 multiple.
According to the motor of the utility model second aspect embodiment, including：Rotor and the electricity according to above-described embodiment
Machine stator.
According to the motor of the utility model embodiment, by using the motor stator described in above-described embodiment, processing and manufacturing
Easily, qualification rate is high, and it is low with manufacturing cost to advantageously reduce the straight material cost of motor, the operating efficiency of lifting motor.
According to one embodiment of the present utility model, the rotor includes：Rotor core, the rotor core have multiple
Magnet groove；Multiple permanent magnets, the multiple permanent magnet are respectively provided in multiple magnet grooves, and the number of pole-pairs of the rotor is P,
The quantity of the stator slot is Z, and meets relational expression：Z/P=3/2k, wherein, k is positive integer.
Alternatively, the magneto is by inverter supply.
According to the compressor of the utility model third aspect embodiment, including the Permanent Magnet and Electric according to above-described embodiment
Machine.
According to the compressor of the utility model embodiment, by using the magneto described in above-described embodiment, be advantageous to
Lift the cost performance of compressor.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the front view according to the motor stator of the utility model one embodiment；
Fig. 2 is the top view of the motor stator shown in Fig. 1；
Fig. 3 is the stereogram of the motor stator shown in Fig. 1；
Fig. 4 is the coiling qualification rate contrast of stator in motor stator and correlation technique according to the utility model embodiment
Figure；
Fig. 5 is the structural representation according to the motor stator of the utility model another embodiment；
Fig. 6 is the structural representation according to the magneto of the utility model embodiment；
Fig. 7 is schemed according to the magneto of the utility model embodiment and efficiency-volume vs of correlation technique motor；
Fig. 8 is the connection diagram of the magneto and frequency converter according to the utility model embodiment；
Fig. 9 is the structural representation according to the compressor of the utility model embodiment.
Reference：
Compressor A,
Magneto 10,
Stator 11,
Stator core 111, passage 1111, stator tooth 1112, stator slot 1113,
Stator winding 112, first coil group 1121, the second coil group 1122, tertiary coil group 1123, joint 1124,
Lead-out wire 113,
Rotor core 12, magnet slot 121, permanent magnet 13,
Frequency converter 20, shell 30, bent axle 40, cylinder 50, piston 60, base bearing 71, supplementary bearing 72.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " length ", " width ", " thickness ",
The side of the instruction such as " on ", " under ", "front", "rear", " vertical ", " top ", " bottom " " interior ", " outer ", " axial direction ", " radial direction ", " circumference "
Position or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplification is retouched
State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to limitation of the present utility model.In addition, define " first ", the feature of " second " can be expressed or hidden
Include one or more this feature containing ground.In description of the present utility model, unless otherwise indicated, " multiple " are meant that
Two or more.
Motor stator 11 below with reference to Fig. 1-Fig. 5 descriptions according to the utility model first aspect embodiment.
As Figure 1-Figure 5, included according to the motor stator 11 of the utility model one embodiment：Stator core 111, determine
Sub- winding 112 and the lead-out wire 113 for connecting external circuit and stator winding 112.
Stator core 111 has multiple along its circumferentially spaced stator tooth 1112, two stator tooths of arbitrary neighborhood
1112 limit stator slot 1113.Stator winding 112 is around being located on multiple stator tooths 1112.Stator winding 112 includes multiple lines
Circle group, each coil group have at least two joints 1124.Lead-out wire 113 includes more.Every lead-out wire 113 and multiple coils
At least two joints 1124 in group connect, and at least two joints 1124 that every lead-out wire 113 connects come from different coils
The joint 1124 of group.
Wherein, the application conditions of the motor are：It is Un to carry the rated voltage between the terminal of the motor, stator core
111 maximum outside diameter is Dmax, and the axial length of stator core 111 is L, Un/ (Dmax2×L)≤0.3V/cm3。
According to the motor stator 11 of the utility model embodiment, terminal voltage, the maximum outside diameter of stator core 111 in motor
And axial length meets in the occasion of the utility model application, by the way that every lead-out wire 113 is come from at least two
The joint 1124 of different coil groups connects, and can reduce the coil diameter of stator winding 112, so as to improve stator winding 112
Manufacturing, the copper factor of motor is effectively improved, while the AC resistance of stator winding 112 can be reduced, so as to reduce collection
Skin effect, lifting motor efficiency.
Alternatively, the quantity of coil group is equal with the quantity of lead-out wire 113, if such as stator winding include three coils
Group, then lead-out wire is including three.
In some instances, stator winding 112 uses the connected mode without neutral point, such as stator winding 112 to adopt
With delta connection, the connection process of stator winding 112 and lead-out wire 113 is simplified.Ensureing that the identical voltage x current of motor is special
Property in the case of, can suitably reduce the coil diameter of stator winding 112, so as to improve the manufacturing of stator winding 112, reduce
Straight the material cost and manufacturing cost of stator winding 112, while kelvin effect can also be reduced, reduce the alternating current of stator winding
Resistance, lifting motor efficiency.
According to some optional embodiments of the utility model, stator winding 112 is centralized winding.
Specifically, as shown in Figure 1-Figure 3, in the present embodiment, stator winding 112 includes first coil group 1121, second
Coil group 1122 and tertiary coil group 1123, lead-out wire 113 include three.
In some instances, each coil group has two joints 1124, wherein, first lead-out wire 113 and First Line
One joint 1124 of circle group 1121, a joint 1124 of the second coil group 1122 connect.Second lead-out wire 113 and first
Another joint 1124 of coil group 1121, a joint 1124 of tertiary coil group 1123 connect.3rd lead-out wire 113 with
Another joint 1124 of second coil group 1122, another joint 1124 of tertiary coil group 1123 connect.
That is, stator winding 112 includes three coil groups, each coil group includes two joints 1124, i.e. stator
Winding 112 shares six joints 1124.Six joints 1124 are connected with three lead-out wires 113, and every lead-out wire 113 connects two
Joint 1124, and the joint 1124 that every lead-out wire 113 connects comes from different coil groups.
In the present embodiment, the application conditions of motor are：The maximum outside diameter of rated operational voltage Un, stator between motor terminal
Dmax, the axial length L of the stator meet：Un/(Dmax2×L)≤0.3V/cm3.In the occasion of foregoing application conditions, make
With motor stator 11 of the present utility model, the conductor diameter of stator winding 112 can be effectively reduced, so as to improve stator winding
112 manufacturings.Further, since the conductor diameter of stator winding 112 reduces, be advantageous to reduce the kelvin effect of conductor, so as to subtract
The AC resistance of small machine, the performance of lifting motor.
In some instances, the quantity of stator slot 1113 is 3 multiple.
In some specific examples, the stator core 111 of motor stator 11 has nine stator slots 1113 and nine stators
Tooth 1112.Stator winding 112 divides has two joints 1124, the joint of different coil groups for three coil groups, each coil group
1124 combination of two with lead-out wire 113 to be connected
Certainly, the quantity of the joint 1124 of each coil group of the present utility model is not limited to two.
In some specific examples, the quantity of the joint 1124 of each coil group can be even number (2n, n=1,2,
3 ...), if stator winding 112 has m coil group, the sum of joint 1124 of stator winding 112 is 2mn.
Wherein, first lead-out wire 113 can with n joint of first coil group 1121, n of the second coil group 1122
Joint connects, and second lead-out wire 113 can connect with the another n joint of first coil group 1121, n of tertiary coil group 1123
Head connection, the 3rd lead-out wire 113 can connect with the another n joint of the second coil group 1122, another n of tertiary coil group 1123
Head connection.
As shown in figure 3, in some instances, motor stator 11 also includes insulating materials with by stator winding 112 and stator
Electric insulation is carried out between iron core 111, different phase stator winding 112.
Fig. 4 is the coiling qualification rate comparison diagram of the motor stator 11 and the motor stator in correlation technique of above-described embodiment.
It can be seen that in correlation technique, under the thicker occasion of the conductor cross-sectional size of stator winding, stator winding is relatively difficult to achieve
Higher copper factor, and if copper factor exceed some critical point, manufacture qualification rate can drastically decline with the rise of copper factor, very
It can not extremely manufacture.
Comparatively speaking, the structure of motor stator 11 provided using the utility model embodiment, on the one hand, can effectively reduce
The conductor diameter of stator winding 112, so as to be easier to realize the copper factor that stator winding 112 is higher.On the other hand, with conductor
The increase of line footpath, is influenceed by kelvin effect, and AC resistance/D.C. resistance of conductor increases therewith, so as to influence the performance of motor.
According to other optional embodiments of the utility model, stator winding 112 is distributed winding.
As shown in figure 5, in some instances, stator core 111 has 18 stator slots 1113 and 18 stator tooths
1112.The maximum outside diameter and axial length of terminal voltage, stator core 111 in motor are in the utility model application
In occasion, using the connection method of the joint 1124 and lead-out wire 113 of stator winding 112 of the present utility model, have similar
Excellent results.
In some optional examples, one end of lead-out wire 113 is connected with terminal box, and lead-out wire 113 is by terminal box and outside
Circuit connects.In other optional examples, one end of lead-out wire 113 is connected with conductive insert, and lead-out wire 113 is inserted by conduction
Piece is connected with external circuit, easy to connect, and operation is easy.
According to the motor stator 11 of the utility model embodiment, the coil of stator winding 112 is connected letter with lead-out wire 113
It is single, and in the case where ensureing the identical voltage-current characteristic of motor, improve the manufacturing of motor.Further, since stator winding 112
Conductor cross-sectional size it is larger easily produce kelvin effect, electric efficiency can be declined, and the motor of the utility model embodiment
Stator 11, the conductor cross-sectional size of stator winding 112 can be reduced, so as to reduce the kelvin effect of conductor, lifting motor efficiency.
As Figure 6-Figure 8, included according to the magneto 10 of the utility model second aspect embodiment：Rotor and according to
The motor stator 11 of above-described embodiment.
Due to there is above-mentioned technique effect according to the motor stator 11 of the utility model embodiment, therefore, according to this practicality
The magneto 10 of new embodiment also has above-mentioned technique effect, i.e., the structure of described magneto 10 is simple, straight material cost
Low with manufacturing cost, processing and manufacturing is easy, and qualification rate is high, and motor working efficiency is high, and performance is good.
As shown in fig. 6, in some instances, the middle part of stator core 111 has passage 1111, and rotor is rotatably arranged at
In passage 1111.
Rotor includes：Rotor core 12 and multiple permanent magnets 13.Rotor core 12 is provided at circumferentially spaced with multiple along it
Magnet groove 121.Multiple permanent magnets 13 are respectively provided in multiple magnet grooves 121, and the number of pole-pairs of rotor is P, stator slot 1113
Quantity is Z, and meets relational expression：Z/P=3/2k, wherein, k is positive integer.If for example, the quantity Z of stator slot 1113 be 9 when,
Then the number of pole-pairs P of rotor can be 6.
Fig. 7 is that the magneto 10 of the utility model embodiment is schemed with efficiency-volume vs of the motor in correlation technique.
It can be seen that the stator of the magneto 10 of the utility model embodiment has a higher copper factor, at the same because stator around
The conductor cross sectional area of group 112 is smaller and reduces kelvin effect, therefore the electric machine structure under different volumes and in correlation technique
Compare, there is higher performance.
As shown in figure 8, according to one embodiment of the present utility model, magneto 10 is powered by frequency converter 20.Frequency converter
20 input side can be direct current or alternating current.The outlet side of frequency converter 20 is connected with to forever with magneto 10
Magneto 10 is powered, so as to realize the VFC of magneto 10.
Included according to the compressor A of the utility model third aspect embodiment according to the magneto described in above-described embodiment
10.It is therefore, real according to the utility model due to there is above-mentioned technique effect according to the magneto 10 of the utility model embodiment
The compressor A for applying example also has above-mentioned technique effect, i.e., described compressor A's processes, be easy to manufacture, and operating efficiency is high.
As shown in figure 9, according to one embodiment of the present utility model, compressor A include shell 30, bent axle 40, cylinder 50,
Piston 60, base bearing 71, the motor of supplementary bearing 72 and above-described embodiment.
Vertically (above-below direction as shown in Figure 9) extends shell 30, is defined in shell 30 axially extending along its
Accommodating chamber.Bent axle 40 is located in accommodating chamber and along the axial arranged of shell 30.The lower end of bent axle 40 passes through cylinder 50, base bearing
71 and supplementary bearing 72 be respectively provided at the upper and lower ends of cylinder 50 to limit the compression chamber of sealing with cylinder 50.Bent axle 40 stretches into gas
The part of cylinder 50 forms eccentric part and is set with piston 60 thereon.The upper end of bent axle 40 and the rotor core 12 of motor connect.
According to the motor of the utility model embodiment, compressor A other compositions and operation for the common skill in this area
All it is known for art personnel, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the present utility model.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or
Person's feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (12)
- A kind of 1. motor stator, it is characterised in that including：Stator core, the stator core have multiple along its circumferentially spaced stator tooth, the two neighboring stator tooth Limit stator slot；Stator winding, the stator winding is around being located at the stator tooth and including multiple coil groups, each coil group has At least two joints；For connecting the lead-out wire of external circuit and the stator winding, the lead-out wire include more and the every lead-out wire with The joint connection of at least two different coil groups,Wherein, it is Un to carry the rated voltage between the terminal of the motor, and the maximum outside diameter of the stator core is Dmax, described The axial length of stator core is L, Un/ (Dmax2×L)≤0.3V/cm3。
- 2. motor stator according to claim 1, it is characterised in that the quantity of the coil group and the number of the lead-out wire Measure equal.
- 3. motor stator according to claim 1, it is characterised in that the stator winding includes first coil group, second Coil group and tertiary coil group, the lead-out wire include three.
- 4. motor stator according to claim 3, it is characterised in that each coil group has the 2n joints, Wherein, n is positive integer,First lead-out wire is connected with n joint of the first coil group, n joint of the second coil group,Second lead-out wire is connected with the another n joint of the first coil group, n joint of the tertiary coil group,3rd lead-out wire is connected with the another n joint of the second coil group, the another n joint of the tertiary coil group.
- 5. according to the motor stator any one of claim 1-4, it is characterised in that the stator winding for centralization around Group or distributed winding.
- 6. according to the motor stator any one of claim 1-4, it is characterised in that the stator winding is used without neutrality The connected mode of point.
- 7. according to the motor stator any one of claim 1-4, it is characterised in that the lead-out wire by terminal box or Conductive insert is connected with external circuit.
- 8. motor stator according to claim 1, it is characterised in that the quantity of the stator slot is 3 multiple.
- A kind of 9. magneto, it is characterised in that including：Rotor and the motor according to any one of claim 1-7 are determined Son.
- 10. magneto according to claim 9, it is characterised in that the rotor includes：Rotor core, the rotor core have multiple magnet grooves；Multiple permanent magnets, the multiple permanent magnet are respectively provided in multiple magnet grooves, and the number of pole-pairs of the rotor is P, institute The quantity for stating stator slot is Z, and meets relational expression：Z/P=3/2k, wherein, k is positive integer.
- 11. magneto according to claim 9, it is characterised in that the magneto is by inverter supply.
- 12. a kind of compressor, it is characterised in that including the magneto according to any one of claim 9-11.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720625160.4U CN206742981U (en) | 2017-05-31 | 2017-05-31 | Motor stator, magneto and compressor |
| US16/618,232 US11418081B2 (en) | 2017-05-31 | 2017-11-29 | Motor stator for compressor, permanent magnet motor, and compressor |
| PCT/CN2017/113645 WO2018218899A1 (en) | 2017-05-31 | 2017-11-29 | Motor stator for use in compressor, permanent magnet motor, and compressor |
| EP17911907.8A EP3637584A4 (en) | 2017-05-31 | 2017-11-29 | Motor stator for use in compressor, permanent magnet motor, and compressor |
| JP2019566349A JP2020522225A (en) | 2017-05-31 | 2017-11-29 | Motor stator for compressor, permanent magnet motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720625160.4U CN206742981U (en) | 2017-05-31 | 2017-05-31 | Motor stator, magneto and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742981U true CN206742981U (en) | 2017-12-12 |
Family
ID=60568510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720625160.4U Active CN206742981U (en) | 2017-05-31 | 2017-05-31 | Motor stator, magneto and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017709A (en) * | 2017-05-31 | 2017-08-04 | 广东美芝制冷设备有限公司 | Motor stator, magneto and compressor |
| CN109245375A (en) * | 2018-10-19 | 2019-01-18 | 苏州源源机械设备有限公司 | A kind of small-sized wind power generator low torque machine winding structure |
-
2017
- 2017-05-31 CN CN201720625160.4U patent/CN206742981U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017709A (en) * | 2017-05-31 | 2017-08-04 | 广东美芝制冷设备有限公司 | Motor stator, magneto and compressor |
| CN109245375A (en) * | 2018-10-19 | 2019-01-18 | 苏州源源机械设备有限公司 | A kind of small-sized wind power generator low torque machine winding structure |
| CN109245375B (en) * | 2018-10-19 | 2024-01-05 | 苏州源源机械设备有限公司 | Winding structure of low-torque motor of small wind driven generator |
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