CN113595287A - Stator winding, stator and motor - Google Patents
Stator winding, stator and motor Download PDFInfo
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- CN113595287A CN113595287A CN202110843081.1A CN202110843081A CN113595287A CN 113595287 A CN113595287 A CN 113595287A CN 202110843081 A CN202110843081 A CN 202110843081A CN 113595287 A CN113595287 A CN 113595287A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/02—Windings characterised by the conductor material
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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
- H02K1/16—Stator cores with slots for windings
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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
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- 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
Abstract
The present disclosure provides a stator winding, a stator and an electric machine, the stator winding comprises at least one phase of winding, and each winding comprises at least two parallel branches, until and one branch of the winding adopts a first conductor material, the other branch of the winding adopts a second conductor material, and the resistivity of the first conductor material is different from the resistivity of the second conductor material. According to the winding structure, the total resistance of the winding can be reduced, so that the motor efficiency is improved, materials are fully utilized, the motor efficiency is integrally improved, and the cost can be reduced while the motor efficiency is improved.
Description
Technical Field
The disclosure relates to the technical field of motors, in particular to a stator winding, a stator and a motor.
Background
In the conventional stator, the stator is made of enameled wires as a material and distributed in a stator slot as conductors, the enameled wires are used as important components of a motor circuit, and when a copper material is adopted, the conductivity is high, the resistance is small, the motor efficiency is high, but the cost is high; when an aluminum material is used, although the cost is low, the conductivity is low, the resistance is large, and the motor efficiency is low.
Because the motor stator among the prior art can't satisfy simultaneously that resistance is lower and the cost is lower, can't improve the conductivity simultaneously, can also reduce technical problem such as cost when improving motor efficiency, consequently this disclosure research designs a stator winding, stator and motor.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
Therefore, the technical problem to be solved by the present disclosure is to overcome the defects that the motor stator in the prior art cannot reduce the resistance, improve the conductivity, improve the motor efficiency, and simultaneously reduce the cost, thereby providing a stator winding, a stator and a motor.
In order to solve the above problem, the present disclosure provides a stator winding, wherein:
the stator winding comprises at least one phase of winding, each phase of winding comprises at least two parallel branches, the winding of one branch adopts a first conductor material, the winding of the other branch adopts a second conductor material, and the resistivity of the first conductor material is different from that of the second conductor material.
In some embodiments, the resistivity of the first conductor material > the resistivity of the second conductor material.
In some embodiments, the first conductor material is copper and the second conductor material is aluminum.
In some embodiments, the number of parallel branches is n, where n is a natural number greater than 2, and there is a maximum value for the resistivity of the conductor material of the winding on at least one branch that is greater than or equal to the resistivity of the conductor material of the winding of the other branches.
In some embodiments, n is a divisor of the number of stator poles p.
In some embodiments, the stator winding includes a main phase winding and a secondary phase winding, the main phase winding includes at least two parallel branches, and at least one parallel branch employs a conductor material of a different conductivity than the other parallel branches; the secondary phase winding comprises at least two parallel branches, and at least one parallel branch is made of a conductor material with different conductivity from other parallel branches.
The present disclosure also provides a stator comprising the stator winding of any one of the preceding claims, and further comprising a stator core, wherein the stator core comprises a plurality of stator teeth distributed along a circumferential direction, and the stator winding is wound on the stator teeth.
In some embodiments, when the stator winding includes a main phase winding and a secondary phase winding, a winding position of the main phase winding on the stator tooth is located radially outward of a winding position of the secondary phase winding on the stator tooth.
In some embodiments, one stator slot is formed between two adjacent stator teeth, and the stator slots include a first slot, a second slot, a third slot, a fourth slot, a fifth slot, a sixth slot, a seventh slot, an eighth slot, a ninth slot, a tenth slot, an eleventh slot, a twelfth slot, a thirteenth slot, a fourteenth slot, a fifteenth slot, a sixteenth slot, a seventeenth slot, an eighteenth slot, a nineteenth slot, a twentieth slot, a twenty-first slot, a twenty-second slot, a twenty-third slot, and a twenty-fourth slot in the circumferential direction.
In some embodiments, when the stator winding comprises a main phase winding, the main phase winding comprises a main phase first leg and a main phase second leg connected in parallel;
the winding of the main phase first branch passes through the first groove, the twelfth groove, the second groove, the eleventh groove, the third groove, the tenth groove, the fourth groove, the ninth groove, the fifth groove and the eighth groove in sequence and penetrates out;
the winding of the main phase second branch passes through the twenty-fourth groove, the thirteenth groove, the twenty-third groove, the fourteenth groove, the twenty-second groove, the fifteenth groove, the twenty-first groove, the sixteenth groove, the twentieth groove and the seventeenth groove in sequence and penetrates out;
the input end of the main phase first branch is connected with the input end of the main phase second branch, and the output end of the main phase first branch is connected with the output end of the main phase second branch, so that the main phase first branch is connected with the main phase second branch in parallel;
the first branch of the main phase adopts a copper wire, and the second branch of the main phase adopts an aluminum wire.
In some embodiments, when the stator winding comprises a secondary phase winding, the secondary phase winding comprises a secondary phase first leg and a secondary phase second leg connected in parallel;
the winding of the first branch of the secondary phase passes through the tenth groove, the fifteenth groove, the ninth groove, the sixteenth groove, the eighth groove, the seventeenth groove, the seventh groove and the eighteenth groove in sequence and penetrates out;
the winding of the secondary phase second branch groove passes through the third groove, the twelfth groove, the fourth groove, the twenty-first groove, the fifth groove, the twentieth groove, the sixth groove and the nineteenth groove in sequence and penetrates out;
the input end of the auxiliary phase first branch is connected with the input end of the auxiliary phase second branch, and the output end of the auxiliary phase first branch is connected with the output end of the auxiliary phase second branch, so that the auxiliary phase first branch is connected with the auxiliary phase second branch in parallel;
the first branch of the auxiliary phase adopts an aluminum wire, and the second branch of the auxiliary phase adopts a copper wire.
In some embodiments, when a primary phase first branch, a primary phase second branch, a secondary phase first branch and a secondary phase second branch are included, the output of the primary phase first branch is connected to the output of the primary phase second branch and then connected to a common phase, and the output of the secondary phase first branch is connected to the output of the secondary phase second branch and then connected to the common phase.
The present disclosure also provides an electric machine comprising the aforementioned stator.
The stator winding, the stator and the motor have the following beneficial effects:
this is disclosed through setting up every winding of stator winding into two at least parallelly connected branches, and the resistivity of the conductor material of two branches is different, thereby form parallelly connected winding, adopt the parallel mode to connect each looks of motor winding, parallelly connected branch adopts the conductor material of different resistivity respectively, in order to reduce the winding total resistance, thereby improve motor efficiency, and make the material obtain make full use of, wholly improve motor efficiency, simultaneously because its material cost is low such as aluminium of the high material of resistance, such parallel connection structural style can also reduce winding cost effectively, reduce resistance, improve the conductivity, can also reduce cost when improving motor efficiency.
Drawings
FIG. 1 is a block diagram of a winding form of a stator of the present disclosure;
fig. 2 is a circuit configuration diagram of a main phase winding and a secondary phase winding in the stator winding of the present disclosure.
The reference numerals are represented as:
1. a first groove; 2. a second groove; 3. a third groove; 4. a fourth groove; 5. a fifth groove; 6. a sixth groove; 7. a seventh groove; 8. an eighth groove; 9. a ninth tank; 10. a tenth slot; 11. an eleventh tank; 12. a twelfth groove; 13. a thirteenth groove; 14. a fourteenth slot; 15. a fifteenth tank; 16. a sixteenth slot; 17. a seventeenth groove; 18. an eighteenth groove; 19. a nineteenth groove; 20. a twentieth slot; 21. a twenty-first slot; 22. a twenty-second slot; 23. a twenty-third slot; 24. a twenty-fourth slot;
101. a main phase first branch; 102. a main phase second branch; 103. a secondary phase first branch; 104. a secondary phase second branch; 105. a copper wire; 106. an aluminum wire; 200. a stator core; 300. a main phase winding; 400. a secondary phase winding; 500. a common phase.
Detailed Description
As shown in fig. 1-2, the present disclosure provides a stator winding, wherein:
the stator winding comprises at least one phase of winding, each phase of winding comprises at least two parallel branches, the winding of one branch adopts a first conductor material, the winding of the other branch adopts a second conductor material, and the resistivity of the first conductor material is different from that of the second conductor material. This is disclosed through setting up every winding of stator winding into two at least parallelly connected branches, and the resistivity of the conductor material of two branches is different, thereby form parallelly connected winding, adopt the parallel mode to connect each looks of motor winding, parallelly connected branch adopts the conductor material of different resistivity respectively, in order to reduce the winding total resistance, thereby improve motor efficiency, and make the material obtain make full use of, wholly improve motor efficiency, simultaneously because its material cost is low such as aluminium of the high material of resistance, such parallel connection structural style can also reduce winding cost effectively, reduce resistance, improve the conductivity, can also reduce cost when improving motor efficiency.
In some embodiments, the resistivity of the first conductor material > the resistivity of the second conductor material. This is the preferred magnitude of resistivity for the first and second conductor materials of the present disclosure.
In some embodiments, the first conductor material is copper and the second conductor material is aluminum. The first conductor material is copper, the second conductor material is aluminum, the resistivity of the copper is larger than that of the aluminum, and the parallel resistance of the branches of the copper and the aluminum is smaller than that of the copper and the aluminum, so that the resistivity of the whole winding is effectively reduced, and the efficiency of the motor is improved.
In some embodiments, the number of parallel branches is n, where n is a natural number greater than 2, and there is a maximum value for the resistivity of the conductor material of the winding on at least one branch that is greater than or equal to the resistivity of the conductor material of the winding of the other branches. The invention discloses a novel wire inserting circuit structure, each phase of winding of a motor is divided into n branch structures, wherein n is the divisor of the pole number p of the motor, the parallel paths respectively adopt conductor materials with different resistivities, at least one of the parallel paths is a high-conductivity material (such as copper wire), and the other paths can be other low-cost materials (such as aluminum wire) so as to reduce the total resistance of the winding, improve the efficiency of the motor, fully utilize the materials and integrally improve the efficiency of the motor.
In some embodiments, n is a divisor of the number of stator poles p. For example, in a 2-pole motor, the number of parallel branches can only be 2, and the two parallel branches are made of different materials. For example, in a 6-pole motor, the number of the parallel branches can be 2, 3 or 6, each parallel branch can be made of different materials, and different conductor materials can be selected according to requirements.
In some embodiments, the stator winding includes a main phase winding 300 and a secondary phase winding 400, the main phase winding 300 includes at least two parallel branches, and at least one parallel branch is made of a conductor material with a different conductivity than the other parallel branches; the secondary phase winding 400 includes at least two parallel branches, and at least one of the parallel branches is made of a conductive material having a different conductivity than the other parallel branches. This is a further preferred form of construction of the stator winding of the present disclosure, i.e. a single phase winding, the primary phase winding being the winding that plays the main role and the secondary phase winding being the winding that provides the starting torque at start-up.
As shown in the circuit diagram of the single-phase motor in fig. 1, the main phase and the auxiliary phase are connected in parallel, the first branch of the main phase is made of a material with higher conductivity (such as a copper wire), the second branch of the main phase is made of a material with lower conductivity (such as an aluminum wire), and the total resistance of the main phase is as follows:
The present disclosure also provides a stator comprising the stator winding of any one of the preceding claims, and further comprising a stator core 200, wherein the stator core 200 comprises a plurality of stator teeth distributed along a circumferential direction, and the stator winding is wound on the stator teeth.
This is disclosed through setting up every winding of stator winding into two at least parallelly connected branches, and the resistivity of the conductor material of two branches is different, thereby form parallelly connected winding, adopt the parallel mode to connect each looks of motor winding, parallelly connected branch adopts the conductor material of different resistivity respectively, in order to reduce the winding total resistance, thereby improve motor efficiency, and make the material obtain make full use of, wholly improve motor efficiency, simultaneously because its material cost is low such as aluminium of the high material of resistance, such parallel connection structural style can also reduce winding cost effectively, reduce resistance, improve the conductivity, can also reduce cost when improving motor efficiency.
The present disclosure provides a novel winding inserting circuit structure, which divides each phase winding of the motor into n branch structures, wherein n is the divisor of the pole number p of the motor. Each branch circuit is made of different conductor materials, and the branch circuits are connected in parallel. Each parallel branch of each phase can be made of different materials, and the wire diameter and the number of turns of each parallel branch are the same. It is suitable for both single-phase motor and multi-phase motor.
In some embodiments, when the stator winding includes a main phase winding 300 and a secondary phase winding 400, the winding position of the main phase winding 300 on the stator teeth is located radially outward of the winding position of the secondary phase winding 400 on the stator teeth. This is the preferred form of construction for the stator winding of the present disclosure, with the primary phase winding wound radially outward of the secondary phase winding, acting to generate primarily the magnetic field, as shown in fig. 1.
In some embodiments, one stator slot is formed between two adjacent stator teeth, and the stator slots include a first slot 1, a second slot 2, a third slot 3, a fourth slot 4, a fifth slot 5, a sixth slot 6, a seventh slot 7, an eighth slot 8, a ninth slot 9, a tenth slot 10, an eleventh slot 11, a twelfth slot 12, a thirteenth slot 13, a fourteenth slot 14, a fifteenth slot 15, a sixteenth slot 16, a seventeenth slot 17, an eighteenth slot 18, a nineteenth slot 19, a twentieth slot 20, a twenty-first slot 21, a twenty-twelfth slot 22, a twenty-third slot 23, and a twenty-fourth slot 24 in the circumferential direction.
In some embodiments, when the stator winding comprises a main phase winding 300, the main phase winding comprises a main phase first leg 101 and a main phase second leg 102 in parallel;
the winding of the main phase first branch 101 passes through the first groove 1, the twelfth groove 12, the second groove 2, the eleventh groove 11, the third groove 3, the tenth groove 10, the fourth groove 4, the ninth groove 9, the fifth groove 5 and the eighth groove 8 in sequence and penetrates out;
the winding of the main phase second branch 102 passes through the twenty-fourth slot 24, the thirteenth slot 13, the twenty-third slot 23, the fourteenth slot 14, the twenty-twelfth slot 22, the fifteenth slot 15, the twenty-first slot 21, the sixteenth slot 16, the twentieth slot 20 and the seventeenth slot 17 in sequence and penetrates out;
the input end of the main phase first branch 101 is connected with the input end of the main phase second branch 102, and the output end of the main phase first branch 101 is connected with the output end of the main phase second branch 102, so that the main phase first branch 101 is connected with the main phase second branch 102 in parallel;
the main phase first branch 101 is made of copper wire, and the main phase second branch 102 is made of aluminum wire.
The main phase forms two parallel branches (a main phase first branch 101 and a main phase second branch 102 in a winding mode, the main phase first branch 101 adopts a copper wire, and the main phase second branch adopts an aluminum wire, so that the resistance of a main phase winding is effectively reduced, the cost is effectively reduced, and the motor efficiency is improved.
Each parallel branch of each phase can be made of different materials, and the wire diameter and the number of turns of each parallel branch are the same. Taking the single-phase motor in fig. 1 as an example, the motor has 24 slots, wherein the first slot 1, the second slot 2, the third slot 3, the fourth slot 4, the fifth slot 5, the eighth slot 8, the ninth slot 9, the tenth slot 10, the eleventh slot 11 and the twelfth slot 12 are embedded slots which are main phase first parallel branches and adopt copper wires. The thirteenth groove 13, the fourteenth groove 14, the fifteenth groove 15, the sixteenth groove 16, the seventeenth groove 17, the twentieth groove 20, the twenty-first groove 21, the twenty-twelfth groove 22, the twenty-third groove 23 and the twenty-fourth groove 24 corresponding to the grooves are main phase second parallel branches. The wire diameters of the two branches are the same, the turns correspond to one another, namely the turns of the first groove 1 are the same as the turns of the twenty-fourth groove 24, namely the turns of the second groove 2 are the same as the turns of the twenty-third groove 23. The seventh groove 7, the eighth groove 8, the ninth groove 9, the tenth groove 10, the fifteenth groove 15, the sixteenth groove 16, the seventeenth groove 17 and the eighteenth groove 18 corresponding to the grooves are secondary phase second branches. The design of half copper and half aluminum is practically realized. The material cost of the motor is greatly reduced.
In some embodiments, when the stator winding comprises the secondary phase winding 400, the secondary phase winding comprises the secondary phase first leg 103 and the secondary phase second leg 104 connected in parallel;
the winding of the auxiliary phase first branch 103 passes through the tenth slot 10, the fifteenth slot 15, the ninth slot 9, the sixteenth slot 16, the eighth slot 8, the seventeenth slot 17, the seventh slot 7 and the eighteenth slot 18 in sequence and penetrates out;
the winding of the secondary phase second branch 104 passes through the third slot 3, the twelfth slot 22, the fourth slot 4, the twenty-first slot 21, the fifth slot 5, the twentieth slot 20, the sixth slot 6 and the nineteenth slot 19 in sequence and penetrates out;
an input end of the secondary phase first branch 103 is connected with an input end of the secondary phase second branch 104, and an output end of the secondary phase first branch 103 is connected with an output end of the secondary phase second branch 104, so that the secondary phase first branch 103 is connected in parallel with the secondary phase second branch 104;
the first branch 103 of the secondary phase is an aluminum wire, and the second branch 104 of the secondary phase is a copper wire.
The main phase forms two parallel branches (a main phase first branch 101 and a main phase second branch 102 in a winding mode, the main phase first branch 101 adopts a copper wire, and the main phase second branch adopts an aluminum wire, so that the resistance of a main phase winding is effectively reduced, the cost is effectively reduced, and the motor efficiency is improved.
The secondary phase line embedding slots, namely the third slot 3, the fourth slot 4, the fifth slot 5, the sixth slot 6, the nineteenth slot 19, the twentieth slot 20, the twenty-first slot 21 and the twenty-twelfth slot 22, are primary branch lines and adopt copper wires. The seventh groove 7, the eighth groove 8, the ninth groove 9, the tenth groove 10, the fifteenth groove 15, the sixteenth groove 16, the seventeenth groove 17 and the eighteenth groove 18 corresponding to the grooves are secondary phase second branches. The design of half copper and half aluminum is practically realized. The material cost of the motor is greatly reduced.
In some embodiments, when a primary phase first branch 101, a primary phase second branch 102, a secondary phase first branch 103, and a secondary phase second branch 104 are included, the output of the primary phase first branch 101 is connected to the output of the primary phase second branch 102 and then connected to the common phase 500, and the output of the secondary phase first branch 103 is connected to the output of the secondary phase second branch 104 and then connected to the common phase 500.
The present disclosure still provides a motor, its characterized in that: comprising a stator according to any of claims 7-12. The utility model provides a new rule circuit structure, adopt the parallel mode to connect with each looks of motor winding, the parallel branch road adopts the conductor material of different resistivity respectively to reduce the winding total resistance, thereby improve motor efficiency, and make full use of material, wholly improve motor efficiency.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.
Claims (13)
1. A stator winding, characterized by:
the stator winding comprises at least one phase of winding, each phase of winding comprises at least two parallel branches, the winding of one branch adopts a first conductor material, the winding of the other branch adopts a second conductor material, and the resistivity of the first conductor material is different from that of the second conductor material.
2. A stator winding according to claim 1, wherein:
the resistivity of the first conductor material > the resistivity of the second conductor material.
3. A stator winding according to claim 2, wherein:
the first conductor material is copper and the second conductor material is aluminum.
4. A stator winding according to any one of claims 1-3, wherein:
the number of the parallel branches is n, wherein n is a natural number larger than 2, and the resistivity of the conductor material of the winding on at least one branch is larger than or equal to the highest value of the resistivity of the conductor materials of the windings of other branches.
5. The stator winding of claim 4, wherein:
n is a divisor of the number p of stator poles.
6. A stator winding according to any of claims 1-5, wherein:
the stator winding comprises a main phase winding (300) and an auxiliary phase winding (400), the main phase winding (300) comprises at least two parallel branches, and at least one parallel branch is made of a conductor material with different conductivity from other parallel branches; the secondary phase winding (400) comprises at least two parallel branches, and at least one parallel branch is made of a conductor material with different conductivity from other parallel branches.
7. A stator, characterized by: comprising a stator winding according to any of claims 1-6, further comprising a stator core (200), the stator core (200) comprising a plurality of stator teeth distributed in the circumferential direction, the stator winding being wound on the stator teeth.
8. The stator of claim 7, wherein:
when the stator winding includes a main phase winding (300) and a sub-phase winding (400), a winding position of the main phase winding (300) on the stator tooth is located radially outside a winding position of the sub-phase winding (400) on the stator tooth.
9. The stator of claim 7, wherein:
a stator slot is formed between two adjacent stator teeth, and the stator slot comprises a first slot (1), a second slot (2), a third slot (3), a fourth slot (4), a fifth slot (5), a sixth slot (6), a seventh slot (7), an eighth slot (8), a ninth slot (9), a tenth slot (10), an eleventh slot (11), a twelfth slot (12), a thirteenth slot (13), a fourteenth slot (14), a fifteenth slot (15), a sixteenth slot (16), a seventeenth slot (17), an eighteenth slot (18), a nineteenth slot (19), a twentieth slot (20), a twenty-first slot (21), a twenty-second slot (22), a twenty-third slot (23) and a twenty-fourth slot (24) along the circumferential direction.
10. The stator of claim 9, wherein:
when the stator winding comprises a main phase winding (300), the main phase winding comprises a main phase first branch (101) and a main phase second branch (102) connected in parallel;
the winding of the main phase first branch (101) passes through the first groove (1), the twelfth groove (12), the second groove (2), the eleventh groove (11), the third groove (3), the tenth groove (10), the fourth groove (4), the ninth groove (9), the fifth groove (5) and the eighth groove (8) in sequence and penetrates out;
the winding of the main phase second branch (102) passes through the twenty-fourth groove (24), the thirteenth groove (13), the twenty-third groove (23), the fourteenth groove (14), the twenty-twelfth groove (22), the fifteenth groove (15), the twenty-first groove (21), the sixteenth groove (16), the twentieth groove (20) and the seventeenth groove (17) in sequence and penetrates out;
the input end of the main phase first branch (101) is connected with the input end of the main phase second branch (102), and the output end of the main phase first branch (101) is connected with the output end of the main phase second branch (102), so that the main phase first branch (101) is connected with the main phase second branch (102) in parallel;
the first main phase branch (101) is made of copper wires, and the second main phase branch (102) is made of aluminum wires.
11. A stator according to any one of claims 9-10, wherein:
when the stator winding comprises a secondary phase winding (400), the secondary phase winding comprises a secondary phase first branch (103) and a secondary phase second branch (104) connected in parallel;
the winding of the auxiliary phase first branch (103) passes through the tenth groove (10), the fifteenth groove (15), the ninth groove (9), the sixteenth groove (16), the eighth groove (8), the seventeenth groove (17), the seventh groove (7) and the eighteenth groove (18) in sequence and penetrates out;
the winding of the secondary phase second branch (104) passes through the third groove (3), the twelfth groove (22), the fourth groove (4), the twenty-first groove (21), the fifth groove (5), the twentieth groove (20), the sixth groove (6) and the nineteenth groove (19) in sequence and penetrates out;
the input end of the secondary phase first branch (103) is connected with the input end of the secondary phase second branch (104), and the output end of the secondary phase first branch (103) is connected with the output end of the secondary phase second branch (104), so that the secondary phase first branch (103) is connected with the secondary phase second branch (104) in parallel;
the first sub-phase branch (103) is made of an aluminum wire, and the second sub-phase branch (104) is made of a copper wire.
12. The stator of claim 11, wherein:
when the circuit simultaneously comprises a main phase first branch (101), a main phase second branch (102), a secondary phase first branch (103) and a secondary phase second branch (104), the output end of the main phase first branch (101) is connected with the output end of the main phase second branch (102) and then connected to a common phase (500), and the output end of the secondary phase first branch (103) is connected with the output end of the secondary phase second branch (104) and then connected to the common phase (500).
13. An electric machine characterized by: comprising a stator according to any of claims 7-12.
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| CN202110843081.1A CN113595287A (en) | 2021-07-26 | 2021-07-26 | Stator winding, stator and motor |
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| CN202110843081.1A CN113595287A (en) | 2021-07-26 | 2021-07-26 | Stator winding, stator and motor |
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| CN102334268A (en) * | 2009-02-25 | 2012-01-25 | 艾默生电气公司 | Two conductor winding for an induction motor circuit |
| CN202550698U (en) * | 2011-08-19 | 2012-11-21 | 艾默生电气公司 | A polyphase electromechanical machine with a phase winding formed by different conductor materials, and a stator |
| CN103855831A (en) * | 2012-11-30 | 2014-06-11 | 艾默生电气公司 | Scroll Compressor Having Single Phase Induction Motor With Aluminum Windings |
| CN203554089U (en) * | 2013-11-14 | 2014-04-16 | 尼得科电机（青岛）有限公司 | Stator and motor comprising the stator |
| CN208461552U (en) * | 2018-08-03 | 2019-02-01 | 珠海凌达压缩机有限公司 | A kind of stator punching, stator and motor |
| CN112332564A (en) * | 2020-11-06 | 2021-02-05 | 天津市松正电动汽车技术股份有限公司 | Motor stator and motor |
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