CN109586430A - Stator module and motor - Google Patents
Stator module and motor Download PDFInfo
- Publication number
- CN109586430A CN109586430A CN201710911751.2A CN201710911751A CN109586430A CN 109586430 A CN109586430 A CN 109586430A CN 201710911751 A CN201710911751 A CN 201710911751A CN 109586430 A CN109586430 A CN 109586430A
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- slot
- shaped conductor
- stator
- conductor segment
- inner part
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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
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The stator module and motor that the invention discloses a kind of suitable for the motor of 2p grades of m phases of z slot, the stator module includes stator core and stator winding, stator winding is made of flat wire and including the first U-shaped conductor segment, second U-shaped conductor segment, third U-shaped conductor segment and the 4th U-shaped conductor segment, to realize second direction coiling partial stator slot, first direction coiling again, then first direction again after second direction coiling another part stator slot again, it is recycled with this, by this wave around mode, so that smaller than existing scheme with the flat wire voltage difference between adjacent trench layers in slot, motor insulation breakdown risk can be effectively reduced, high reliablity.
Description
Technical field
The present invention relates to motor field more particularly to a kind of stator modules and motor of the driving motor suitable for vehicle.
Background technique
Entitled " the rotating electric machine electricity consumption of application number " 201180004987.9 " in Chinese invention patent application prospectus
Pivot " discloses a kind of rotary motor armature connection type, which is wave around mode, from outermost layer wave around to innermost layer, then the
One direction wave is around to outermost layer, as shown in Figure 8.
The inventors of the present application found that above-mentioned armature connection in the prior art and implementation, in terms of manufacture craft
From the point of view of, the flat wire armature type for needing to make is more, and axial ends is required to weld, and causes solder joint more；In addition, above-mentioned wave is around side
In formula, it is difficult to accurate fixation after flat wire is offline, high production cost, manufacture craft difficulty is big.And from the aspect of electrical connection, it uses
Above-mentioned wave in the prior art is around form, and the voltage difference between the different numbers of plies in same slot is high, and interlayer holds under high-pressure situations
Easily breakdown, leads to short circuit, to make motor failure.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes that one kind is fixed
The manufacture craft of sub-component, the stator module coiling is simple and electrical connection is safe and reliable.
Second aspect of the present invention proposes a kind of motor with said stator component.
The stator module of embodiment according to a first aspect of the present invention, it is every extremely every suitable for the motor of 2p grades of m phases of z slot
Phase slot number is q=z/m/ (2p), and parallel branch number is a, a≤q, comprising: stator core, the stator core have multiple stators
Slot all has multiple groove layer in each stator slot；
Stator winding, the stator winding include multiple U-shaped conductor segments made of flat wire, each U-shaped conductor segment
Including head and the first slot inner part and the second slot inner part that are respectively connected to the head, the first slot inner part and institute
Stating the pitch between the second slot inner part is y stator slot, and wherein y is integer and y=z/2p, and the of the U-shaped conductor segment
One slot inner part passes through one of one of groove layer in stator slot, and the second slot inner part passes through another stator slot
In one of groove layer, its end exceeds after the first slot inner part and the second slot inner part pass through the stator slot
The stator core is to form welding ends, the multiple U-shaped conductor segment positioned at described the first of multilayer on the welding ends
Slot inner part and the second slot inner part are welded to connect；
The U-shaped conductor segment includes the first U-shaped conductor segment, the second U-shaped conductor segment, third U-shaped conductor segment and the 4th U shape
Conductor segment, in coil winding, in every road Xiang Mei,
Terminal lead-out wire is on welding ends and inside radially the first slot of a first U-shaped conductor segment of groove layer
Divide connection, the first U-shaped conductor segment crosses over y stator slot along first direction same layer；
Multiple second U-shaped conductor segments are crossed over and are sequentially connected in a second direction, and each second U-shaped conductor segment is fixed across y
Pilot trench, groove layer where the second slot inner part of each second U-shaped conductor segment is radially inward than groove layer where the first slot inner part
One layer, until the second slot inner part is located at radially inner most groove layer；
One third U-shaped conductor segment crosses over y stator slot along first direction same layer；
Multiple 4th U-shaped conductor segments are crossed over and are sequentially connected along first direction, and each 4th U-shaped conductor segment is fixed across y
Pilot trench, groove layer where the second slot inner part of each 4th U-shaped conductor segment than the first slot inner part place groove layer radially to
Outer one layer, until the second slot inner part is located at radially groove layer；
It is repeated again using the first U-shaped conductor segment, the second U-shaped conductor segment, third U-shaped conductor segment and the 4th U-shaped conductor segment
State setting, until some the 4th U-shaped conductor segment the second slot inner part reach finishing radially groove layer adjacent layer and
The asterism lead-out wire on the road Xiang Gai is connected, wherein the finishing is in a second direction apart from y stator slot of the initial slot；
The first direction and second direction are the opposite direction on stator core circumference.
According to some embodiments of the present invention, the second direction is the positive direction of rotor rotation, the first party
To the opposite direction for motor rotor.
According to some embodiments of the present invention, the number of plies of groove layer described in each stator slot is even number.
According to some embodiments of the present invention, the road a of every phase differs 1 stator slot two-by-two in the circumferential.
According to some embodiments of the present invention, 2q slot is differed between the asterism line of the m phase two-by-two in the circumferential, it is described
Differ 2q slot between the terminal lead-out wire of m phase two-by-two in the circumferential.
Terminal lead-out wire and asterism lead-out wire are arranged on welding ends I by stator module according to an embodiment of the present invention,
There is pad in welding ends and hair fastener end compared in conventional coil, welding procedure is simple；In addition, the embodiment of the present invention is determined
Sub-component, using above-mentioned method for winding, with it is in the prior art " from outermost layer wave around to innermost layer, then first direction wave around to
The form of outermost layer " is different, but second direction coiling partial stator slot, then first direction coiling, then again second direction around
First direction again after another part stator slot processed, is recycled with this, by this wave around mode so that with adjacent trench layers in slot it
Between flat wire voltage difference it is smaller than existing scheme, motor insulation breakdown risk, high reliablity can be effectively reduced.
According to some embodiments of the present invention, the first slot inner part and the second slot inner part of the U-shaped conductor segment
Any of end be respectively connected with interconnecting piece and welding leg, the interconnecting piece is relative to slot inner part bending where it.
According to some embodiments of the present invention, the first slot inner part and the second slot inner part in the first U-shaped conductor segment
Interconnecting piece bending direction it is consistent；The interconnecting piece of first slot inner part and the second slot inner part in the 4th U-shaped conductor segment
Bending direction it is consistent；The shape of the first U-shaped conductor segment and the 4th U-shaped conductor segment is almost the same and the folding of interconnecting piece
It is curved contrary.
According to some embodiments of the present invention, the first slot inner part and the second slot inner part of the second U-shaped conductor segment
Interconnecting piece bending direction on the contrary, the shape of the second U-shaped conductor segment and third U-shaped conductor segment is almost the same.
According to some embodiments of the present invention, the slot number z=48 for the motor that the stator module is suitable for, number of pole-pairs p=
4, the number of phases=3, pitch y=6 all has 6 groove layer a, b, c, d, e, f in each slot in 48 stator slots, and 3 phases include
U phase, V phase and W phase, every phase number a is 2 tunnels, wherein the coiling route of the U phase first via of the stator is as follows:
1f→43f→1e→7d→13c→19b→25a→19a→13b→7c→1d→43e→37f→31f→37e
→ 43d→1c→7b→13a→7a→1b→43c→37d→31e→25f→19f→25e→31d→37c→43b→1a
→ 43a→37b→31c→25d→19e→13f→7f→13e→19d→25c→31b→37a→31a→25b→19c→
13d→7e
The coiling route on the second tunnel of U phase differs 1 stator slot with the U phase first via in the circumferential,
The corresponding asterism lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential；
The corresponding terminal lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential.
According to some embodiments of the present invention, on the extending direction of the U-shaped conductor segment, the cross of the U-shaped conductor segment
Area of section is equal.
Motor according to a second aspect of the present invention, including stator module according to a first aspect of the present invention.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram according to stator core in the stator module of the embodiment of the present invention；
Fig. 2 is the schematic diagram according to U-shaped conductor segment in the stator module of the embodiment of the present invention；
Fig. 3 a- Fig. 3 d is the first to fourth U-shaped conductor segment used when stator module coiling according to an embodiment of the present invention
Schematic diagram；
Fig. 4 is according to the schematic diagram of the stator module as initial setting up of first aspect present invention embodiment, wherein with 8
48 slot of pole, 3 phase is to exemplify；
Fig. 5 is the winding mode schematic diagram of the stator module in Fig. 4, wherein being to exemplify with 1 tunnel of U phase；
Fig. 6 is the final stator module that stator module forms the 2 tunnel modes of connection after processing in Fig. 4；
Fig. 7 is the final stator module that stator module forms the 1 tunnel mode of connection after processing in Fig. 4.
Fig. 8 is the schematic diagram of the winding structure of stator winding in the related technology.
Appended drawing reference:
Stator module 100, stator core 1, stator slot 11,
Stator winding 2, U-shaped conductor segment 20, head 201, the first slot inner part 202, the second slot inner part 203,
First U-shaped conductor segment 2001；Second U-shaped conductor segment 2002；Third U-shaped conductor segment 2003；4th U-shaped conductor segment
2004；
The neutral conductor 3, hair fastener end I, welding ends II；
Three-phase: U phase, V phase, W phase
1 pass outlet U1A of U phase；2 pass outlet U2A of U phase；
1 road asterism line U1A of U phase；2 road asterism line U2B of U phase；
1 pass outlet V1A of V phase；2 pass outlet V2A of V phase；
1 road asterism line V1A of V phase；2 road asterism line V2B of V phase；
1 pass outlet W1A of W phase；2 pass outlet W2A of W phase；
1 road asterism line W1A of W phase；2 road asterism line W2B of W phase
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second ", which are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or imply, refers to
The quantity of bright indicated technical characteristic." first " is defined as a result, the feature of " second " can explicitly or implicitly include
One or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two with
On.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
A kind of stator module of embodiment according to a first aspect of the present invention, the stator pack are first described according to Fig. 1-Fig. 4 below
Part can be used as initial stator module, and go to process it to obtain the final form of different numbers according to customer demand
Final stator module.
A kind of stator module 100 according to an embodiment of the invention, comprising: stator core 1 and stator winding 2.
As shown in Figure 1, having multiple stator slots 11 on stator core 1, the stator core is cylindrical shape, stator core 1
It is upper that there are multiple stator slots；Stator slot is formed on the internal perisporium of stator core 1, and along it is axial (such as shown in Fig. 1 up and down
Direction) run through stator core 1, and multiple stator slots are along the circumferentially-spaced arrangement of stator core 1, the depth direction of the stator slot
It is consistent with the radial direction of stator core.There are multiple groove layer, stator winding 2 includes multiple U-shaped conductors in each stator slot 11
Section 20.As shown in Figures 2 and 3, each U-shaped conductor segment 20 includes bending part 201 and is respectively connected to the first of bending part 201
Slot inner part 202 and the second slot inner part 203, the first slot inner part 202 pass through one of one of them in stator slot 11
Groove layer, the second slot inner part 203 pass through one of groove layer in another stator slot 11, the first slot inner part 202 and second
Its end exceeds stator core 1 after slot inner part 203 passes through stator slot 11.
Any cross section perpendicular to its extending direction of U-shaped conductor segment 20 be it is non-circular, it is described as one embodiment
Cross section is rectangular shape.Optionally, any cross section of U-shaped conductor segment 20 is rectangular shape, and rectangular short side hangs down
Directly in 11 bottom wall of stator slot.Further, on the extending direction of U-shaped conductor segment 20, the cross section face of U-shaped conductor segment 20
Product is equal.
As shown in figure 4, the bending part 201 in U-shaped conductor segment 20 is the hair fastener end I and first of stator winding 2 at one end
The end of slot inner part 202 and the second slot inner part 203 is known as the welding ends II of stator winding 2 at one end, as shown in figure 3,
Welding ends 2 is by the first slot inner part 202 of multiple U-shaped conductor segments 20 and the second slot of U-shaped conductor segment 20 adjacent thereto
Successively weld formation in part 203.
Wherein on welding ends II, the every asterism lead-out wire and terminal lead-out wire all the way of any phase differs 3q in the circumferential
Stator slot 11, the multichannel of any phase differ 1 stator slot 11 two-by-two in the circumferential；
Corresponding asterism lead-out wire differs 2q stator slot 11 in the circumferential between multiphase；
Corresponding terminal lead-out wire differs 2q stator slot 11 in the circumferential between multiphase,
Wherein, MgO-ZrO_2 brick is q=z/m/ (2p), and parallel branch number is g, g≤q；
Wherein, z is number of stator slots, and m is the number of phases, and 2p is number of poles.
Here for stator module 100 suitable for the motor of 2p grades of m phases of z slot, slot number z here can be 24,48,72
Can be three-phase, two-phase or single-phase Deng, number of phases m, number of pole-pairs p can be 8 poles, 4 extremely etc., can according to specifically applicable motor into
Row setting.
Herein it should be noted that " difference " refers to the difference between two slot numbers, such as initial slot is 1, then phase
It is the 7th slot after poor 6 slots.
Above-mentioned winding structure can carry out coiling by following method for winding:
S1, multiple U-shaped conductor segments 20 are provided, each U-shaped conductor segment 20 includes bending part and is respectively connected to bending part
First slot inner part 202 and the second slot inner part 203, the pitch between the first slot inner part 202 and the second slot inner part 203 are equal
For y stator slot 11, wherein y is integer and y=z/2p, any cross section perpendicular to its extending direction of U-shaped conductor segment 20
It is rectangular shape；
S2, the first slot inner part 202 of U-shaped conductor segment 20 is passed through one of into one of slot in stator slot 11
Layer, the second slot inner part 203 pass through one of groove layer in another stator slot 11, the first slot inner part 202 and the second slot
Its end exceeds stator core to form welding ends after inner part 203 passes through stator slot 11；
S3, on welding ends by multiple U-shaped conductor segments 20 inside the first slot inner part 202 of multilayer and the second slot
203 are divided to be welded to connect, so that the winding direction of coil is configured in every road Xiang Mei:
S31, the radially groove layer that terminal lead-out wire is led to initial slot, the initial slot are that terminal lead-out wire is opened
Begin the stator slot 11 for preparing to be inserted into for the first time when coiling；
S32, y stator slot 11 is crossed over along first direction same layer；
S33, it crosses in a second direction, every number of plies across y 11 groove layer of stator slot changes one layer, and wherein the number of plies is radially
Variation is until radially inner most groove layer from outside to inside；
S34, y stator slot 11 is crossed over along first direction same layer；
S35, it is crossed over along first direction, every one layer of number of plies variation across y 11 groove layer of stator slot, wherein the number of plies is radially
Variation is until radially groove layer from inside to outside；
S36, S32-S35 is repeated, until coiling reaches the adjacent layer of the radially groove layer of finishing, then draws the phase
The asterism lead-out wire on the road, wherein finishing is in a second direction apart from y stator slot of initial slot 11, wherein art here
Language " finishing " refers to the last one stator slot that coil winding passes by after finishing.
The first direction and second direction are the opposite direction on stator core circumference.
Terminal lead-out wire and asterism lead-out wire are arranged on welding ends I by stator module according to an embodiment of the present invention,
There is pad in welding ends and hair fastener end compared in conventional coil, welding procedure is simple；In addition, the embodiment of the present invention is determined
Sub-component, using above-mentioned method for winding, with it is in the prior art " from outermost layer wave around to innermost layer, then first direction wave around to
The form of outermost layer " is different, but second direction coiling partial stator slot, then first direction coiling, then again second direction around
First direction again after another part stator slot processed, is recycled with this, by this wave around mode so that with adjacent trench layers in slot it
Between winding voltage difference it is smaller than existing scheme, motor insulation breakdown risk, high reliablity can be effectively reduced.
According to one embodiment of present invention, U-shaped conductor segment 20 includes at least: multiple first U-shaped conductor segments 2001, multiple
Second U-shaped conductor segment 2002, multiple third U-shaped conductor segments 2003 and multiple 4th U-shaped conductor segments 2004, the first U-shaped conductor segment
2001 cross over for the same layers in step S32, when the second U-shaped conductor segment 20 is crossed over for coiling second direction in step S33 from
Radial outer radially crosses over one layer, from radial direction when third U-shaped conductor segment 20 is crossed over for coiling first direction in step S35
Internal layer crosses over one layer outward, and the 4th U-shaped conductor segment 20 is crossed over for the same layer in step S34.In other words, the first U-shaped conductor
Section 2001 from the same layer between radially layer for crossing over, and the 4th U shape conductor segment 2004 is between radially innermost layer
Same layer is crossed over；Second U-shaped conductor segment 2002 uses when across one layer, i.e. second direction crosses over one layer outside to inside, third U-shaped
Conductor segment 2003 uses when across one layer, i.e. first direction crosses over one layer from inside to outside.
More specifically, in coil winding, in every road Xiang Mei, terminal lead-out wire is on welding ends and is located at radial direction most
First slot inner part of one the first U-shaped conductor segment 2001 of outer groove layer connects, and the first U-shaped conductor segment 2001 is same along first direction
Layer crosses over y stator slot；Multiple second U-shaped conductor segments 2002 are crossed over and are sequentially connected in a second direction, each second U-shaped conductor
Section 2002 crosses over y stator slot, and groove layer is than the first slot inner part where the second slot inner part of each second U-shaped conductor segment 2002
One layer radially inward of place groove layer, until the second slot inner part is located at radially inner most groove layer；One third U-shaped conductor segment
2003 cross over y stator slot along first direction same layer；Multiple 4th U-shaped conductor segments 2004 are crossed over along first direction and are successively connected
It connects, each 4th U-shaped conductor segment 2004 crosses over y stator slot, the second slot inner part institute of each 4th U-shaped conductor segment 2004
In groove layer than radially one layer of groove layer where the first slot inner part, until the second slot inner part is positioned at radially groove layer
Only；The first U-shaped conductor segment 2001, the 2nd U shape conductor segment 2002, third U-shaped conductor segment 2003 and the 4th U-shaped conductor are used again
Section 2004 repeats above-mentioned setting, until the second slot inner part of some the 4th U-shaped conductor segment 2004 reaches the radial direction of finishing most
The adjacent layer of outer groove layer and the asterism lead-out wire for connecting the road Xiang Gai, wherein finishing is in a second direction apart from initial slot y
A stator slot.
As shown in Fig. 2-Fig. 3 d, any of first slot inner part 202 and the second slot inner part 203 of U-shaped conductor segment 20
End be respectively connected with interconnecting piece and weld part, interconnecting piece is relative to slot inner part bending where it.Specifically, such as Fig. 3 a and
Shown in Fig. 3 d, the bending side of the interconnecting piece 204 of the first slot inner part 202 and the second slot inner part 203 in the first U-shaped conductor segment 20
To consistent, the bending side of the interconnecting piece 204 of the first slot inner part 202 and the second slot inner part 203 in the 4th U-shaped conductor segment 20
To consistent, the shape of the first U-shaped conductor segment 20 and the 4th U-shaped conductor segment 20 is almost the same and the bending direction phase of interconnecting piece 204
Instead, but due to of different size between the stator slot at different radial positions, lead to the first U-shaped conductor segment 2001 and the 4th U
The leap size of shape conductor segment 2004 is different, i.e. between two bar groove inner parts 202 and 203 of the first U-shaped conductor segment 2001 away from
The distance between two bar groove inner parts 202 and 203 L4 from L1, the 4th U-shaped conductor segment 2004 is different, more precisely,
L1 > L4.
And as shown in Fig. 3 b and Fig. 3 c, the first slot inner part 202 and the second slot inner part of the second U-shaped conductor segment 2002
The bending direction of 203 interconnecting piece 204 on the contrary, the second U-shaped conductor segment 2002 and third U-shaped conductor segment 2003 shape basic one
It causes, span is also identical (6 stator slots).Those skilled in that art are it should be readily understood that between adjacent two layers groove layer
Second direction cross over the second U-shaped conductor segment 2002 and first direction cross over third U-shaped conductor segment 2003 two bar grooves in
Size between part should be completely the same, such as the second U-shaped conductor when from the radial outside second layer across to third layer
Third U-shaped conductor segment when the distance between two bar groove inner parts 202,203 of section 2002 L2 and third layer are crossed over to the second layer
The distance between 2003 two bar groove inner parts 202,203 L3 is equal.It is, of course, also possible to understand, due to different diameters
To multiple second U-shaped conductor segments of different size between the stator slot at position, that second direction is crossed between different groove layer
The distance between 2002 two bar groove inner parts 202,203 L2 should also be as being different, for example, from the radial outside second layer across
The distance between two bar groove inner parts 202,203 of the second U-shaped conductor segment 2002 when to third layer L2 and third layer are across to
The distance between two bar groove inner parts 202,203 of the second U-shaped conductor segment 2002 at four layers L2 ' is different, more accurately
It says, L2 ' is less than L2.
Optionally, the first slot inner part 202 of the second U-shaped conductor segment 20 and the second slot inner part 203 are located at different surfaces
On, similarly, the first slot inner part 202 and the second slot inner part 203 of third U-shaped conductor segment 2003 also are located at different surfaces
On.
Method for winding according to an embodiment of the present invention, the type of U-shaped conductor segment needed for coiling is few, therefore makes U-shaped and lead
The equipment of body section is few, batch production easy to accomplish.
In addition, method for winding according to an embodiment of the present invention, so that the distance between terminal lead-out wire and asterism lead-out wire
Minimum, can be used as the structure of initial stator module, structure setting when for example, dispatching from the factory, can for customer demand respectively to around
Group parallel branch quantity is adjusted.In this way, on the basis of the stator module, it, can be to this hair when needing the access of 1 tunnel such as user
The stator module of bright embodiment processed with adjusted become parallel branch number be 1 tunnel stator module, then again with turn
The components such as son are assembled the motor accessed all the way；Correspondingly, when being accessed if you need to 2 roads, to the stator of the embodiment of the present invention
Component is processed to be adjusted and become the stator module that parallel branch number is 2 tunnels.
The processing method that said stator component 100 adjusts different numbers according to user demand is described more fully below.
The processing method the following steps are included:
S1, selection number g, g are the natural number more than or equal to 1
When wherein q is odd number, g has 2 selections: the road q and 1 tunnel；
When q is even number, g has q/2+1 selection, q, q/2, q/4 ... ..., and 1；
When S2, selection number g=q, connect by the outside bending of the asterism lead-out wire on the road m Xiang Zhongmei, and by the neutral conductor 3
It connects；The terminal lead-out wire on the road m Xiang Zhongmei is connected after being welded and fixed with external controller interface.Optionally, in the neutral conductor 3 here
Material can be consistent with the material of U-shaped conductor segment 20.
It is successively right with it after the terminal lead-out wire on every road Xiang Zhongk is elongated outside bending when S3, selection number g=1
The asterism lead-out wire on -1 tunnel of Ying Xiangzhong kth is welded and fixed, and wherein k is the natural number of 2~q；The terminal on the 1st tunnel in every phase is drawn
It is connected after wire bonding is fixed with external controller interface；The asterism lead-out wire on other roads in every phase other than the 1st tunnel is outside
Bending is simultaneously connected by the neutral conductor 3.
At this point, it is clear in order to describe, by taking the U winding on 4 tunnels as an example, to be such as changed into all the way, it can be in the following manner
Carry out: the lead-out wire on the 4th tunnel of U phase is connect after elongating bending with the asterism line on 3 tunnel of U phase, after the lead-out wire on 3 tunnel of U phase elongates bending
It is connect with the asterism line on 2 tunnel of U phase, the lead-out wire on 2 tunnel of U phase is connect after elongating bending with the asterism line on 1 tunnel of U phase, and 1 tunnel of U phase is drawn
Outlet is connected after being welded and fixed with peripheral control unit；In addition, the asterism line on 4 tunnel of U phase is connected by first neutral conductor 3；3 tunnel of U phase
Asterism line pass through second neutral conductor 3 connect；The asterism line on 2 tunnel of U phase is connected by the third neutral conductor 3.
When S4, q are even number, the road q is divided into q/2 group in every phase, the terminal lead-out wire in at least one set of q/2 group wherein all the way
It is welded and fixed after elongating bending with the asterism lead-out wire of another way, wherein the outside bending of asterism lead-out wire all the way and passing through neutrality
Line 3 connects, and the terminal lead-out wire of another way is connected after being welded and fixed with external controller interface.
It is clear in order to describe, still by taking the U phase in 4 tunnels as an example, two tunnels are such as changed into, can be carried out in the following manner:
4 tunnels in U phase are divided into 2 groups, and the 1st road and the 2nd tunnel are first group, and the 3rd road and the 4th tunnel are second group, wherein the extraction on the 2nd tunnel
Line and the asterism wire bonding on the 1st tunnel are fixed, and the asterism line on the 2nd tunnel is connect with the neutral conductor 3, and the 1st tunnel is connected with outer controller.And the
The lead-out wire on 4 tunnels and the asterism wire bonding on the 3rd tunnel are fixed, and the asterism line on the 4th tunnel is connect with the neutral conductor 3, the 3rd tunnel and outer controller
It is connected.2 tunnels have been eventually formed as a result,.
Processing method according to an embodiment of the present invention, so that the coiling number of stator module is adjustable, and regulative mode is simple
Fast；And the vehicle demand of different electric moter voltage grades can be matched, the vehicle demand of different high efficient districts can also be matched.Separately
Outside, since number is adjustable to be different, so that the voltage difference between the adjacent layer in each stator slot is different, to layer
Part insulation system requires difference, and then different number schemes can be selected according to practical risk and cost control.
Below by by taking stator module according to an embodiment of the present invention is used for the motor of 8 pole, 48 slot, 3 phase as an example to stator module,
The processing method of method for winding and adjustment number is illustrated: i.e. number of stator slots z=48, number of phases m=3, wherein three-phase includes U
Phase, V phase and W phase；Number of poles 2p=8 (i.e. number of pole-pairs is 4), and every phase in three-phase includes two-way.
As shown in figure 4, in the winding 2 of stator module 100, in the first slot inner part 202 of U-shaped conductor segment 20 and the second slot
Pitch between part 203 is y stator slot, and wherein y is integer and y=z/2p.For the stator module 100 of 8 pole, 48 slot
For, y=6.That is, differing 6 between the first slot inner part 202 and the second slot inner part 203 of each U-shaped conductor segment 20
A stator slot.
In the following description, by the present invention will be described for 6 layers in each stator slot 11,6 groove layer include
Each layer of a, b, c, d, e, the f being arranged successively is located at innermost layer in stator core 1 in each stator slot 11 in the radial direction
It is a layers, being located at outermost is f layers.
In stator module as shown in Figure 4, U phase is fixed per difference 6 between asterism lead-out wire and terminal lead-out wire all the way
Pilot trench 11 differs 1 stator slot 11 between the two-way of each phase in the circumferential；The corresponding asterism lead-out wire of U phase, V phase, W is in week
4 stator slots 11 of difference upwards；The corresponding terminal lead-out wire of U phase, V phase, W differs 4 stator slots 11 in the circumferential.
More specifically, as shwon in Figures 5 and 6, the terminal lead-out wire on 2 tunnel of terminal lead-out wire U1A and U phase on 1 tunnel of U phase
1 stator slot is differed between U2A, differs 1 between the terminal lead-out wire V2A on 2 tunnel of terminal lead-out wire V1A and V phase on 1 tunnel of V phase
Stator slot；1 stator slot is differed between the terminal lead-out wire W2A on 2 tunnel of terminal lead-out wire W1A and W phase on 1 tunnel of W phase.
As shwon in Figures 5 and 6, it is differed between the asterism lead-out wire U1B on 1 tunnel of terminal lead-out wire U1A and U phase on 1 tunnel of U phase
6 stator slots differ 6 stator slots between the asterism lead-out wire U2B on 2 tunnel of terminal lead-out wire U2A and U phase on 2 tunnel of U phase；Equally
Ground, in V phase between the terminal lead-out wire V1A and asterism lead-out wire V1B, terminal lead-out wire V2A and asterism lead-out wire V2B of two-way
Also 6 stator slots are differed；The terminal lead-out wire W1A of two-way and asterism lead-out wire W1B, terminal lead-out wire W2A and asterism in W phase
Also 6 stator slots are differed between lead-out wire W2B.
Further, the corresponding asterism lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential, specifically, with
For the first via, the asterism lead-out wire on 1 tunnel of asterism lead-out wire V1B and W phase on 1 tunnel of asterism lead-out wire U1B, V phase on 1 tunnel of U phase
W1B successively differs 4 slots in the circumferential, such as shown in Fig. 2, and U1B is drawn from e layers of 07 slot, and V1B is drawn from e layers of 03 slot, W1B
It is drawn from e layers of 47 slot.Similarly, U2B, V2B and the W2B on the second tunnel are drawn from 08 slot e floor, 04 slot e floor and 48 slot e floor respectively,
4 stator slots are successively differed between them.
Correspondingly, the corresponding terminal lead-out wire of U phase, V phase, W differs 4 stator slots 11 in the circumferential.Specifically, with
For the first via, the terminal lead-out wire W1A on 1 tunnel of terminal lead-out wire V1A, W phase on 1 tunnel of terminal lead-out wire U1A, V phase on 1 tunnel of U phase
4 slots are successively differed in the circumferential, such as shown in Fig. 2, U1A is introduced from f layers of 01 slot, and V1A is introduced from f layers of 45 slot, and W1A
It is introduced from f layers of 41 slot.Similarly, U2A, V2A and the W2A on the second tunnel are introduced from 02 slot f floor, 46 slot f floor and 42 slot f floor respectively,
4 stator slots are successively differed between them.
And said stator winding construction can carry out coiling by following method for winding, as shown in Figure 5 and Figure 6, with U phase the
For all the way, coiling route is as follows:
1f→43f→1e→7d→13c→19b→25a→19a→13b→7c→1d→43e→37f→31f→37e
→ 43d→1c→7b→13a→7a→1b→43c→37d→31e→25f→19f→25e→31d→37c→43b→1a
→ 43a→37b→31c→25d→19e→13f→7f→13e→19d→25c→31b→37a→31a→25b→19c→
13d→7e
Wherein the coiling route on the second tunnel of U phase differs 1 stator slot with the U phase first via in the circumferential,
The corresponding asterism lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential；
The corresponding terminal lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential.
When carrying out coiling by above-mentioned coil winding method, multiple first U-shaped conductor segments, multiple second U-shapeds are used
Conductor segment 2002, multiple third U-shaped conductor segments 2003 and multiple 4th U-shaped conductor segments 2004, still by taking the U phase first via as an example, ginseng
Fig. 5 and above-mentioned coiling route are examined, coiling situation is specific as follows:
Terminal lead-out wire U1A introduces the radially groove layer 1f of the 1st slot of initial slot on welding ends, with the first U-shaped conductor
The first slot inner part connection of section 2001, the first U-shaped conductor segment 2001 are crossed over 6 stator slots along first direction same layer, are reached
43f；
It crosses over and is sequentially connected in a second direction by multiple second U-shaped conductor segments 2002, each second U-shaped conductor segment
2002 cross over 6 stator slots, and groove layer is than the first slot inner part institute where the second slot inner part of each second U-shaped conductor segment 2002
At one layer radially inward of groove layer, until the second slot inner part is located at radially inner most groove layer, i.e., led by second U-shaped
Body section 2002 is crossed over from 43f to 1e, is crossed over from 1e to 7d by next second U-shaped conductor segment 2002, and so on, until
Reach the radially innermost layer 25a of the 25th slot；
6 stator slots are crossed over along first direction same layer by a third U-shaped conductor segment 2003, reach 19a；
It crosses over and is sequentially connected, each 4th U-shaped conductor segment along first direction by multiple 4th U-shaped conductor segments 2004
2004 cross over 6 stator slots, and groove layer is than the first slot inner part institute where the second slot inner part of each 4th U-shaped conductor segment 2004
At radially one layer of groove layer, until the second slot inner part is located at radially groove layer, that is, pass through the 4th U-shaped
Conductor segment 2004 is crossed over from 19a to 13b, is crossed over from 13b to 7c by next 4th U-shaped conductor segment 2004, and so on, directly
To the radially layer 37f for reaching the 37th slot；
The first U-shaped conductor segment 2001, the second U-shaped conductor segment 2002, third U-shaped conductor segment 2003 and the 4th U-shaped are used again
Conductor segment 2004 repeats above-mentioned setting, until the second slot inner part of some the 4th U-shaped conductor segment 2004 reaches the 7th slot of finishing
Radially groove layer adjacent layer (i.e. secondary outer groove layer 7e) and connect the asterism lead-out wire U1B on the road Xiang Gai, wherein finishing
7th slot is in a second direction apart from 6 stator slots of initial slot.
In some embodiments, for the stator module for the motor for being suitable for 8 pole, 48 slot, 3 phase, in its initial stator module
On the basis of 100, it may be selected to be processed into two-way scheme or all the way scheme.
When user is selected as two-way scheme, by first via asterism lead-out wire U1B, V1B, W1B of U, V, W three-phase and
Second road asterism lead-out wire U2B, V2B, W2B distinguishes outside bending, and is weldingly connected by the neutral conductor 3, as shown in fig. 7, finally
First via terminal lead-out wire U1A, V1A, W1A of U, V, W three-phase and second road terminal lead-out wire U2A, V2A, W2A are passed through
Solder terminal is connected after being welded and fixed with external controller interface.
When user is selected as scheme all the way, second road terminal lead-out wire U2A, V2A, W2A of U, V, W three-phase is elongated into folding
After curved, fixation, and the second road asterism lead-out wire is respectively welded with the first via asterism lead-out wire U1B, V1B, W1B of U, V, W three-phase
U2B, V2B, W2B distinguish outside bending, are weldingly connected by center line 3.Finally, the first via terminal of U, V, W three-phase is drawn
Line U1A, V1A, W1A are connected after being welded and fixed by solder terminal with external controller interface.
Certainly, when number of stator slots, number of poles and number of phases difference, the winding structure on every road Xiang Mei is also different.
For example, number of poles 8, the number of phases is 3 and including U phase, V phase and W phase when number of stator slots is 72, every phase includes three tunnels (figure
It is not shown), wherein U phase is per 9 stator slots 11 of difference, tri- tunnel U Xiang between asterism lead-out wire and terminal lead-out wire all the way
Between two-by-two in the circumferential differ 1 stator slot 11；Differ 1 stator slot 11, W phase between tri- tunnel V Xiang in the circumferential two-by-two
Three tunnels between differ 1 stator slot 11 in the circumferential two-by-two, the corresponding asterism lead-out wire of U phase, V phase, W differs in the circumferential
6 stator slots 11, the corresponding terminal lead-out wire of U phase, V phase, W differ 6 stator slots 11 in the circumferential.
It is worth noting that, on the welding ends II of stator winding, any phase is per all the way in some preferred embodiments
Asterism lead-out wire be located at radially outermost layer, and any phase is located at secondary outer layer radially per terminal lead-out wire all the way, this
Sample is convenient for the introducing of terminal lead-out wire, the extraction of asterism lead-out wire, and entire stator winding structure is simple.
In conclusion stator module 100 according to an embodiment of the present invention, only there is pad on welding ends, and in hair fastener
Solderless terminal on end, welding procedure are simple and convenient；Coil type needed for coiling is few, and required equipment is few, and batch easy to accomplish is raw
It produces.In addition, using such method for winding, so that it is smaller than existing scheme with the flat wire voltage difference between adjacent trench layers in slot, can have
Effect reduces motor insulation breakdown risk, high reliablity；In addition, winding number is easily adjusted.
Motor according to a second aspect of the present invention, including stator module according to a first aspect of the present invention.
The motor of embodiment according to a second aspect of the present invention, by the stator that embodiment according to a first aspect of the present invention is arranged
Component, to improve the overall performance of motor.
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 specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of stator module, suitable for the motor of 2p grades of m phases of z slot, MgO-ZrO_2 brick is q=z/m/ (2p), in parallel
Circuitry number is a, a≤q characterized by comprising
Columnar stator core has the circumferencial direction along the stator core spaced multiple on the stator core
Stator slot；
Stator winding, the stator winding include multiple U-shaped conductor segments, and each U-shaped conductor segment includes bending part and difference
The the first slot inner part and the second slot inner part of the bending part are connected to, inside the first slot inner part and second slot
/ pitch be y stator slot, wherein y is integer and y=z/2p, and the first slot inner part of the U-shaped conductor segment wears
One of groove layer in one of stator slot is crossed, the second slot inner part passes through one of them in another stator slot
Its end exceeds the stator core after groove layer, the first slot inner part and the second slot inner part pass through the stator slot
To form welding ends, on the welding ends the first slot inner part positioned at adjacent layer of the multiple U-shaped conductor segment and
The second slot inner part is welded to connect；
The U-shaped conductor segment includes the first U-shaped conductor segment, the second U-shaped conductor segment, third U-shaped conductor segment and the 4th U-shaped conductor
Section, in winding technique, in every road Xiang Mei,
Terminal lead-out wire connects on welding ends with the first slot inner part for being located at a radially first U-shaped conductor segment of groove layer
It connects, the first U-shaped conductor segment crosses over y stator slot along first direction same layer；
Multiple second U-shaped conductor segments are crossed over and are sequentially connected in a second direction, and each second U-shaped conductor segment crosses over y stator slot,
Groove layer where second slot inner part of each second U-shaped conductor segment than the first one layer radially inward of groove layer of slot inner part place,
Until the second slot inner part is located at radially inner most groove layer；
One third U-shaped conductor segment crosses over y stator slot along first direction same layer；
Multiple 4th U-shaped conductor segments are crossed over and are sequentially connected along first direction, and each 4th U-shaped conductor segment crosses over y stator slot,
Groove layer where second slot inner part of each 4th U-shaped conductor segment is than the first slot inner part place groove layer radially one
Layer, until the second slot inner part is located at radially groove layer；
Above-mentioned set is repeated using the first U-shaped conductor segment, the second U-shaped conductor segment, third U-shaped conductor segment and the 4th U-shaped conductor segment again
It sets, until the second slot inner part of some the 4th U-shaped conductor segment reaches the adjacent layer of the radially groove layer of finishing and connection
The asterism lead-out wire on the road Xiang Gai, wherein the finishing is in a second direction apart from y stator slot of the initial slot；
Wherein, the first direction and second direction are the opposite direction on stator core circumference.
2. stator module according to claim 1, which is characterized in that the number of plies of groove layer described in each stator slot is
Even number.
3. stator module according to claim 1, which is characterized in that in the terminal lead-out wire circumferential direction on the road Xiang Ge two-by-two
Differ 1 stator slot.
4. stator module according to claim 1, which is characterized in that between the asterism line on the road Xiang Mei in the circumferential two-by-two
Differ 2q stator slot, between the terminal lead-out wire on the road Xiang Mei in the circumferential two-by-two difference 2q stator slot.
5. stator module according to claim 1, which is characterized in that the first slot inner part of the U-shaped conductor segment
It is respectively connected with interconnecting piece and weld part with the end of any of the second slot inner part, the interconnecting piece is relative in slot where it
Part bending.
6. stator module according to claim 5, which is characterized in that the first slot inner part in the first U-shaped conductor segment
It is consistent with the bending direction of interconnecting piece of the second slot inner part；
The first slot inner part is consistent with the bending direction of interconnecting piece of the second slot inner part in the 4th U-shaped conductor segment；
The bending direction of the interconnecting piece of the first U-shaped conductor segment and the 4th U-shaped conductor segment is opposite.
7. stator module according to claim 5, which is characterized in that the first slot inner part of the second U-shaped conductor segment
With the bending direction of the interconnecting piece of the second slot inner part on the contrary, the shape one of the second U-shaped conductor segment and third U-shaped conductor segment
It causes.
8. stator module described in any one of -7 according to claim 1, which is characterized in that the electricity that the stator module is suitable for
The slot number z=48 of machine, number of pole-pairs p=4, the number of phases=3, pitch y=6 all have 6 in each slot in 48 stator slots
Groove layer a, b, c, d, e, f, 3 phases include U phase, V phase and W phase, and every phase number a is 2 tunnels, wherein the U phase first via of the stator
Coiling route is as follows:
1f→43f→1e→7d→13c→19b→25a→19a→13b→7c→1d→43e→37f→31f→37e→43d
→1c→7b→13a→7a→1b→43c→37d→31e→25f→19f→25e→31d→37c→43b→1a→43a→
37b→31c→25d→19e→13f→7f→13e→19d→25c→31b→37a→31a→25b→19c→13d→7e
The coiling route on the second tunnel of U phase differs 1 stator slot with the U phase first via in the circumferential,
The corresponding asterism lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential；
The corresponding terminal lead-out wire of U phase, V phase, W differs 4 stator slots in the circumferential.
9. stator module according to claim 1, which is characterized in that described on the extending direction of the U-shaped conductor segment
The cross-sectional area of U-shaped conductor segment is equal.
10. a kind of motor, which is characterized in that including stator module as claimed in any one of claims 1-9 wherein.
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| CN201710911751.2A CN109586430B (en) | 2017-09-29 | 2017-09-29 | Stator assembly and motor |
| PCT/CN2018/108644 WO2019062918A1 (en) | 2017-09-29 | 2018-09-29 | Stator assembly and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911751.2A CN109586430B (en) | 2017-09-29 | 2017-09-29 | Stator assembly and motor |
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| CN109586430B CN109586430B (en) | 2021-02-23 |
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| WO (1) | WO2019062918A1 (en) |
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| CN113746237A (en) * | 2020-05-29 | 2021-12-03 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN113839500A (en) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN113839502A (en) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN114079343A (en) * | 2020-08-21 | 2022-02-22 | 比亚迪股份有限公司 | Stator assembly and motor with same |
| CN114629272A (en) * | 2020-12-11 | 2022-06-14 | 比亚迪股份有限公司 | Stator module and motor with same |
| CN114649880A (en) * | 2020-12-18 | 2022-06-21 | 比亚迪股份有限公司 | Stator module and motor with same |
| WO2023246466A1 (en) * | 2022-06-24 | 2023-12-28 | 安徽威灵汽车部件有限公司 | Stator assembly, motor, and vehicle |
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| CN113746237A (en) * | 2020-05-29 | 2021-12-03 | 比亚迪股份有限公司 | Stator assembly and motor |
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| CN113839500A (en) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN113839502A (en) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN113839500B (en) * | 2020-06-23 | 2023-07-11 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN113839502B (en) * | 2020-06-23 | 2023-09-05 | 比亚迪股份有限公司 | Stator Assembly and Motor |
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| CN114629272A (en) * | 2020-12-11 | 2022-06-14 | 比亚迪股份有限公司 | Stator module and motor with same |
| CN114629272B (en) * | 2020-12-11 | 2023-12-12 | 比亚迪股份有限公司 | Stator assembly and motor with same |
| CN114649880A (en) * | 2020-12-18 | 2022-06-21 | 比亚迪股份有限公司 | Stator module and motor with same |
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| WO2023246466A1 (en) * | 2022-06-24 | 2023-12-28 | 安徽威灵汽车部件有限公司 | Stator assembly, motor, and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109586430B (en) | 2021-02-23 |
| WO2019062918A1 (en) | 2019-04-04 |
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