CN208158248U - Stator applied to new-energy automobile rotating electric machine - Google Patents
Stator applied to new-energy automobile rotating electric machine Download PDFInfo
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- CN208158248U CN208158248U CN201820402889.XU CN201820402889U CN208158248U CN 208158248 U CN208158248 U CN 208158248U CN 201820402889 U CN201820402889 U CN 201820402889U CN 208158248 U CN208158248 U CN 208158248U
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- stator
- stator core
- slot
- phase winding
- electric machine
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Abstract
The utility model discloses a kind of stators applied to new-energy automobile rotating electric machine, this stator includes stator core and stator coil, stator core inner ring is circumferentially spaced to set several slots, stator coil includes several U-shaped conductors being embedded in stator core in ring recess, several U-shaped conductors constitute the U phase winding of stator coil, V phase winding and W phase winding, the crooked position of U-shaped conductor is in the end face of stator core, foot is located at the other end of stator core and is circumferentially in that bending clockwise and anticlockwise constitutes connecting pin along stator core, connecting pin is circumferential along stator core and radial distribution is in the other end of stator core, the U-shaped conductor of natural number of the distribution more than or equal to 2 in each slot of stator core inner ring.This stator overcomes the defect of conventional motors stator, so that stator coil end marshalling, motor size is small, and stator coil effective sectional area is big, compact in slot, and heat-transfer effect is good, effectively improves the power density of motor.
Description
Technical field
The utility model relates to a kind of stators applied to new-energy automobile rotating electric machine.
Background technique
In recent years, with the high speed development of new-energy automobile, the motor of new-energy automobile is for high power density and compact
The design requirement of structure is higher and higher, occurs hair fastener motor therewith, and hair fastener motor is exactly the shape of stator winding as hair fastener,
In stator manufacturing process, winding is first done the same shape of imaging hair fastener and is pierced into stator core slot again, then is pressed in other end
Design welds the end of hair fastener and constitutes complete stator winding.The stator structure is radial in each slot of stator core
Several conductors are dispersed with, and number of conductors is even number.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of stator applied to new-energy automobile rotating electric machine,
This stator overcomes the defect of conventional motors stator, so that stator coil end marshalling, motor size is small, and stator coil is effective
Sectional area is big, compact in slot, and heat-transfer effect is good, effectively improves the power density of motor.
In order to solve the above technical problems, the stator that the utility model is applied to new-energy automobile rotating electric machine includes stator iron
Core and stator coil, the stator core inner ring is circumferentially spaced to set several slots, and the stator coil includes insertion institute
Several U-shaped conductors in stator core in ring recess are stated, several U-shaped conductors constitute the U phase winding of the stator coil, V phase
The crooked position of winding and W phase winding, the U-shaped conductor is located at the stator core in the end face of the stator core, foot
Other end and along the stator core be circumferentially in clockwise and anticlockwise bending constitute connecting pin, connecting pin is along the stator
Iron core is circumferential and radial distribution is distributed in the other end of stator core, each slot of the stator core inner ring and is more than or equal to
The U-shaped conductor of 2 natural number.The distribution of even level conductor limits dynamo seriesization design, this stator not office in stator slot
The conductor number of plies in slot is limited, the outer dimension of control motor that can be more flexible can preferably cooperate and complete vehicle layout.
Further, the U phase winding, V phase winding and W phase winding are in star-like connection, and every phase winding includes two in parallel
Sub- winding, every sub- winding are connected in series, each U-shaped in each subcoil is led there are four subcoil between the subcoil
Body is sequentially connected in series.
Further, the subcoil head and end is respectively positioned on the stator core slot radially layer, constitutes the sub-line
Each U-shaped conductor of circle joins end to end and is successively distributed in the slot of stator core, each U-shaped conductor of the subcoil from
The outer layer of stator core slot is distributed to outer layer again to internal layer.
Further, the cross sectional shape of the U-shaped conductor is rectangle and surface covers insulating layer.
Further, ring recess is 48 in the stator core.
Further, nine layers of U-shaped conductor are distributed in each slot of the stator core inner ring.
Since the stator that the utility model is applied to new-energy automobile rotating electric machine uses above-mentioned technical proposal, i.e., this is fixed
Attached bag includes stator core and stator coil, and stator core inner ring is circumferentially spaced to set several slots, and stator coil includes embedding
Enter several U-shaped conductors in stator core in ring recess, several U-shaped conductors constitute U phase winding, V phase winding and the W phase of stator coil
Winding, the crooked position of U-shaped conductor in the end face of stator core, foot are located at the other end of stator core and along stator cores
Circumferential to constitute connecting pin in bending clockwise and anticlockwise, connecting pin is circumferential along stator core and radial distribution is in stator core
Other end, the U-shaped conductor of natural number of the distribution more than or equal to 2 in each slot of stator core inner ring.This stator overcomes tradition
The defect of motor stator, so that stator coil end marshalling, motor size is small, and stator coil effective sectional area is big, in slot
Compact, heat-transfer effect is good, effectively improves the power density of motor.
Detailed description of the invention
The utility model is described in further detail with embodiment with reference to the accompanying drawing：
Fig. 1 is the stator structure schematic diagram that the utility model is applied to new-energy automobile rotating electric machine；
Fig. 2 is the schematic cross-section of stator core in this stator；
Fig. 3 is U-shaped conductor schematic diagram in this stator；
Fig. 4 is the circuit diagram of stator coil in this stator；
Fig. 5 and Fig. 6 is respectively the coiling schematic diagram of two sub- windings of stator coil U phase winding in this stator.
Specific embodiment
Embodiment is as shown in Figure 1, Figure 2 and Figure 3, and the stator that the utility model is applied to new-energy automobile rotating electric machine includes
Stator core 1 and stator coil 2,1 inner ring of stator core is circumferentially spaced to set several slots 11, the stator coil
2 include several U-shaped conductors 3 being embedded in the stator core 1 in ring recess 11, and several U-shaped conductors 3 constitute the stator line
U phase winding, V phase winding and the W phase winding of circle 2, end face of the crooked position of the U-shaped conductor 3 in the stator core 1, foot
Portion is located at the other end of the stator core 1 and connects along circumferential constitute in bending clockwise and anticlockwise of the stator core 1
End is connect, connecting pin is circumferential along the stator core 1 and radial distribution is in the other end of stator core 1, the stator core 1
The U-shaped conductor 3 of natural number of the distribution more than or equal to 2 in each slot 11 of circle.
As shown in Figure 4, it is preferred that the U phase winding, V phase winding and W phase winding are in star-like connection, and every phase winding includes
Two sub- windings 21 in parallel, every sub- winding 21 are connected in series, each subcoil there are four subcoil between the subcoil
In each U-shaped conductor 3 be sequentially connected in series.
Preferably, the subcoil head and end is respectively positioned on the stator core slot 11 radially layer, constitutes the son
Each U-shaped conductor 3 of coil is joined end to end and is successively distributed in the slot 11 of stator core 1, each U-shaped of the subcoil
Conductor 3 is distributed to outer layer again from the outer layer of stator core slot 11 to internal layer.
Preferably, the cross sectional shape of the U-shaped conductor 3 is rectangle and surface covers insulating layer.
Preferably, ring recess 11 is 48 in the stator core 1.
Preferably, nine layers of U-shaped conductor 3 are distributed in each slot 11 of 1 inner ring of stator core.
In this stator structure.Stator core is cylindrical, is made of permeability magnetic material, and inner ring is distributed with slot, stator coil by
Several U-shaped conductors are fixed in the slot of stator core and constitute；Star-like connection is used between the three-phase windings of stator coil, wherein every phase
Winding is formed by two sub- winding parallels；Stator coil is made of several U-shaped conductors, as shown in figure 3, U-shaped conductor 3 is section shape
Shape is approximately the flat conductor of rectangle, which is divided into turn of bilge 31 and straight portion 32, and U-shaped conductor 3 is from the end face of stator core
In insertion groove, the other end of the stretching stator core of foot 33 in the straight portion 32 of U-shaped conductor is simultaneously circumferential and radial curved along stator core
Song is connect with other U-shaped conductor foots, to form the sub- winding of each phase winding.It is as shown in Figure 5 and Figure 6 stator coil U phase
The coiling schematic diagram of two sub- windings in winding, wherein rectangle frame is the interior ring recess of stator core, and stain is 9 layers in rectangle frame
Conductor, specific winding method are：Coil outermost layer is first layer, and a stabilizer blade of first U-shaped conductor is inserted into No. 1 slot outermost layer, 1
Number slot is starting vessel, and another stabilizer blade is inserted into No. 43 slot second layers, is connected to form junction with second one stabilizer blade of U-shaped conductor, the
Two one stabilizer blades of U-shaped conductor are inserted into No. 37 slot third layer, another stabilizer blade is inserted into No. 31 the 4th floor of slot, so according to clockwise or inverse
Clockwise is sequentially inserted into U-shaped conductor, when U-shaped conductor is inserted into innermost layer, reversed wraparound, until No. 43 slot outermost layers,
For a subcoil of the sub- winding of phase winding, same subcoil winding mode, starting vessel is changed to No. 37 slots respectively, and No. 25
Slot, No. 13 slots form four subcoils, this four subcoils join end to end, and are sequentially connected in series the sub- winding to form phase winding（Such as figure
Shown in 5）；According to the winding mode of the sub- winding, starting vessel is changed to No. 2 slots, forms second sub- winding（As shown in Figure 6）, two
A sub- winding head end is connected, and end is connected, and forms U phase winding]；In Fig. 5 and Fig. 6, hollow dots 4 are what U-shaped conductor 3 connected from beginning to end
Junction, the junction are arranged in the other end of stator core 1, and the difference of two sub- winding techniques is starting and ending position
Set one slot position of difference.The V phase winding and W phase winding of same method coiling stator coil, finally by the neutrality of three-phase windings
Point connects, and constitutes complete stator coil.
The stator coil end marshalling of this structure, so that motor size is small, coil effective sectional area is big, tight in slot
It gathering, heat-transfer effect is good, in motor size limitation, the performance of maximizing motor.
Claims (6)
1. a kind of stator applied to new-energy automobile rotating electric machine, including stator core and stator coil, the stator core
Inner ring is circumferentially spaced to set several slots, it is characterised in that：The stator coil includes being embedded in the stator core inner ring
Several U-shaped conductors in slot, several U-shaped conductors constitute the U phase winding, V phase winding and W phase winding of the stator coil,
The crooked position of the U-shaped conductor is located at the other end of the stator core and edge in the end face of the stator core, foot
The stator core is circumferentially in that bending clockwise and anticlockwise constitutes connecting pin, and connecting pin is circumferential and radial along the stator core
It is distributed in the other end of stator core, the institute of natural number of the distribution more than or equal to 2 in each slot of the stator core inner ring
State U-shaped conductor.
2. the stator according to claim 1 applied to new-energy automobile rotating electric machine, it is characterised in that：The U phase around
Group, V phase winding and W phase winding are in star-like connection, and every phase winding includes two sub- windings in parallel, and there are four sons for every sub- winding
Coil is connected in series between the subcoil, and each U-shaped conductor in each subcoil is sequentially connected in series.
3. the stator according to claim 2 applied to new-energy automobile rotating electric machine, it is characterised in that：The subcoil
Head and end is respectively positioned on the stator core slot radially layer, and each U-shaped conductor for constituting the subcoil joins end to end simultaneously
And be successively distributed in the slot of stator core, each U-shaped conductor of the subcoil from the outer layer of stator core slot to internal layer again
It is distributed to outer layer.
4. the stator according to claim 1,2 or 3 applied to new-energy automobile rotating electric machine, it is characterised in that：The U
The cross sectional shape of shape conductor is rectangle and surface covers insulating layer.
5. the stator according to claim 4 applied to new-energy automobile rotating electric machine, it is characterised in that：The stator iron
In-core ring recess is 48.
6. the stator according to claim 1 applied to new-energy automobile rotating electric machine, it is characterised in that：The stator iron
Nine layers of U-shaped conductor are distributed in each slot of in-core circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820402889.XU CN208158248U (en) | 2018-03-23 | 2018-03-23 | Stator applied to new-energy automobile rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820402889.XU CN208158248U (en) | 2018-03-23 | 2018-03-23 | Stator applied to new-energy automobile rotating electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208158248U true CN208158248U (en) | 2018-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820402889.XU Active CN208158248U (en) | 2018-03-23 | 2018-03-23 | Stator applied to new-energy automobile rotating electric machine |
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| Country | Link |
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| CN (1) | CN208158248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021074564A1 (en) * | 2019-10-18 | 2021-04-22 | Dyson Technology Limited | A stator assembly for an electric motor |
-
2018
- 2018-03-23 CN CN201820402889.XU patent/CN208158248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021074564A1 (en) * | 2019-10-18 | 2021-04-22 | Dyson Technology Limited | A stator assembly for an electric motor |
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