CN108471178A - Stator core and motor, compressor with it - Google Patents
Stator core and motor, compressor with it Download PDFInfo
- Publication number
- CN108471178A CN108471178A CN201810549772.9A CN201810549772A CN108471178A CN 108471178 A CN108471178 A CN 108471178A CN 201810549772 A CN201810549772 A CN 201810549772A CN 108471178 A CN108471178 A CN 108471178A
- Authority
- CN
- China
- Prior art keywords
- stator
- stator core
- yoke
- circumferential
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004080 punching Methods 0.000 claims abstract description 136
- 230000002093 peripheral effect Effects 0.000 claims description 30
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of stator core and the motor with it, compressor, the stator core include：Multiple stator punchings, each stator punching includes the multiple piecemeal tooth yoke portions for having yoke section and teeth portion, it crosses the central axis of stator punching and the straight line for deflecting equal angular respectively to the circumferential both ends of yoke section relative to the symmetrical plane of teeth portion is radial divisional plane, the circumferential both ends end face of yoke section is parallel with corresponding radial divisional plane respectively, first end in the circumferential both ends of yoke section is located between corresponding radial divisional plane and symmetrical plane, second end is located at the side of the separate symmetrical plane of corresponding radial divisional plane, projection of the circumferential both ends end face of at least two yoke section in multiple stator punchings in the plane where the central axis perpendicular to stator core not exclusively overlaps.Stator core according to the present invention facilitates stator core and carries out the operations such as coiling, improves the integral rigidity of stator core, can promote electric efficiency and reduce noise.
Description
Technical field
The present invention relates to technical field of motors, more particularly, to a kind of stator core and the motor with it, compressor.
Background technology
Permanent magnet synchronous motor is widely used in the household electrical appliance such as the compressor of domestic air conditioning, pressure fan.With national needle
The improved efficiency of continuous improvement to efficiency class requirement, motor also increasingly attracts attention.For compressor, with compression
The efficiency of the Miniaturization Design trend of machine, the motor mating to compressor is also higher and higher, and due to the fierceness of market competition,
It is also higher and higher to the cost requirement of compressor.Specifically, for example, due to compressor motor need and compressor shell into
Row hot jacket requires height to the circularity of the stator outer diameter to motor, in addition, due to the requirement of compressor noise, the stator of motor
Yoke portion needs to keep higher rigidity.
In the related technology, block stator core structure may be used in stator core, specifically, this block stator iron core knot
Structure is that stator core is divided into multiple portions in the circumferential direction of stator core, by rotary shaft and convex between adjacent each section
Portion and recess portion are connected, and stator core has the circumferentially-spaced setting in stator core and along stator core at this time
Axial linearly extended multiple seams, can improve the utilization rate of stator slot, and then can improve the power density of motor, efficiency
And cost performance.
However, the above-mentioned this method using direct piecemeal, the assembly between piecemeal iron core can cause under manufacture efficiency
Drop, and the rigidity of stator yoke can also decline with respect to unitary stator iron core.Moreover, because the running requirements of motor high frequency,
Seam between each piecemeal of stator core due to being connected each other, and when high frequency, stator core can form larger vortex,
So that electric efficiency declines.In addition, due to the presence in gap near rotary shaft so that stator yoke there are additional air gap,
It can cause the decline of electric efficiency.Further, since the punching on stator punching is needed to go out rotary shaft and protrusion and recess portion, cause
The precision and complexity of mold are relatively high, and manufacturing cost rises.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of stator core, can easily carries out the operations such as follow-up coiling.
It is another object of the present invention to propose a kind of motor with said stator iron core.
Another object of the present invention is to propose a kind of compressor with above-mentioned motor.
The stator core of embodiment according to a first aspect of the present invention, including：Axially stacked multiple stator punchings, each
The stator punching includes circumferentially end to end multiple piecemeal tooth yoke portions successively, and each piecemeal tooth yoke portion includes yoke portion
Section and the teeth portion being connected on the inside of the yoke section, multiple yoke sections circumferentially join end to end successively, two neighboring described
Limit stator slot between teeth portion, the central axis of the excessively described stator punching and relative to the symmetrical plane of the teeth portion to described
The straight line that the circumferential both ends of yoke section deflect equal angular respectively is radial divisional plane, the circumferential both ends end face point of the yoke section
Not parallel with the corresponding radial divisional plane, the first end in the circumferential both ends of the yoke section is located at the corresponding radial direction
Between divisional plane and the symmetrical plane, the second end in the circumferential both ends of the yoke section is located at the corresponding radial segmentation
The side far from the symmetrical plane in face, the first end of any one of yoke section of each stator punching with
The second end of the adjacent yoke section is disposed adjacent, the yoke section of at least two in multiple stator punchings
Projection of the circumferential both ends end face in the plane where the central axis perpendicular to the stator core not exclusively overlap.
Stator core according to the ... of the embodiment of the present invention, by setting make the circumferential both ends end face of yoke section respectively with it is corresponding
Radial divisional plane is parallel, and the operations such as follow-up coiling are carried out to facilitate stator core.Moreover, making the week of yoke section by setting
First end into both ends is located between corresponding radial divisional plane and symmetrical plane, the second end in the circumferential both ends of yoke section
Positioned at the side of the separate symmetrical plane of corresponding radial divisional plane, and the yoke section of at least two in multiple stator punchings
Projection of the circumferential both ends end face in the plane where the central axis perpendicular to stator core not exclusively overlaps, and improves stator
The integral rigidity of iron core can reduce eddy-current loss when high frequency operation, it is full to improve slot when stator core is applied to motor
Rate so as to promote electric efficiency, and reduces noise.
According to some embodiments of the present invention, described the first of any one of yoke section of each stator punching
The inner peripheral surface at end and the inner peripheral surface of the second end of the adjacent yoke section are set in being radially staggered for the stator punching
It sets.
According to some embodiments of the present invention, each stator punching is in the junction of the two neighboring yoke section
Peripheral surface is located at the inside of the peripheral surface of the correspondence teeth portion of the stator punching.
According to some embodiments of the present invention, the peripheral surface of the first end of each yoke section has the first circumferential surface
The peripheral surface of section and the second end has the second circumferential surface section, and it is described fixed that the first circumferential surface section and the second circumferential surface section are located at
The inside of the peripheral surface of the correspondence teeth portion of sub- punching, and in the circumferential direction of the stator punching, the first circumferential surface section
Length is less than the length of the second circumferential surface section.
According to some embodiments of the present invention, the peripheral surface and the stator punching at the circumferential both ends of each yoke section
The peripheral surface of the correspondence teeth portion be respectively formed as cambered surface.
According to some embodiments of the present invention, the circumferential both ends end face of the yoke section is divided with the corresponding radial direction respectively
The distance of face is equal.
According to some embodiments of the present invention, any one end end face in the circumferential both ends of the yoke section and corresponding institute
It is d to state the distance between radial divisional plane, wherein the d meets：0.5mm≤d≤5mm.
According to some embodiments of the present invention, all yoke portions of described at least two in multiple stator punchings
Overlapping area the sum of of the circumferential both ends of section in the plane where the central axis perpendicular to stator core accounts for the stator punching
5% or more of the area of piece.
According to some embodiments of the present invention, multiple stator punchings include at least one set of the of axially staggered arrangement
One stator punching group and at least one set of second stator punching group, the first stator punching group described in every group are included in circumferential upper edge up time
Needle direction, the same yoke section the first end be located at the second end upstream at least one first stator punching,
Second stator punching group described in every group include in circumferential direction along clockwise direction, the first end of the same yoke section is located at
At least one second stator punching in the downstream of the second end.
According to some embodiments of the present invention, dovetail groove or T-slot are formed on the peripheral surface of each yoke section.
According to some embodiments of the present invention, the thickness of each stator punching is less than 1mm.
According to some embodiments of the present invention, each stator punching is the silicon steel sheet that thickness is more than 0.3mm.
The motor of embodiment according to a second aspect of the present invention includes the stator according to the above-mentioned first aspect embodiment of the present invention
Iron core.
The compressor of embodiment according to a third aspect of the present invention includes the electricity according to the above-mentioned second aspect embodiment of the present invention
Machine.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the stereogram of stator core according to the ... of the embodiment of the present invention；
Fig. 2 is the front view of stator core shown in Fig. 1；
Fig. 3 is the enlarged drawing in the portions A that Fig. 2 centre circles show；
Fig. 4 is the stereogram that multiple piecemeal tooth yoke portions are stacked in the axial direction shown in Fig. 1；
Fig. 5 is the vertical view in multiple piecemeal tooth yoke portions shown in Fig. 4；
Fig. 6 is the schematic diagram in piecemeal tooth yoke portion according to the ... of the embodiment of the present invention；
Fig. 7 is schematic diagram when the first stator punching and the second stator punching according to the ... of the embodiment of the present invention are stacked；
Fig. 8 is stereogram of the stator core according to the ... of the embodiment of the present invention in initial, expanded condition a；
Fig. 9 is front view of the stator core shown in fig. 8 in initial, expanded condition a；
Figure 10 is that stator core according to the ... of the embodiment of the present invention is being deployed into intermediate unfolded state b from initial, expanded condition a
When front view；
Figure 11 is that stator core according to the ... of the embodiment of the present invention is further deployed to linear state c from intermediate unfolded state b
When stereogram；
Figure 12 is front view when stator core according to the ... of the embodiment of the present invention is deployed into limiting condition d from linear state c；
Figure 13 is stereogram when stator core according to the ... of the embodiment of the present invention is in limiting condition d；
Figure 14 is the stereogram of stator core according to another embodiment of the present invention；
Figure 15 is the front view of stator core shown in Figure 14；
Figure 16 is the schematic diagram for being equipped with coil one of in stator core according to the ... of the embodiment of the present invention in stator slot.
Reference numeral：
100：Stator core；
1：Stator punching；11：Piecemeal tooth yoke portion；
111：Yoke section；1111：First end；1112：Second end；
1113：First circumferential surface section；1114：Second circumferential surface section；
1115：Dovetail groove；112：Teeth portion；
1121：Symmetrical plane；1122：Radial divisional plane；
113：Stator slot；12：First stator punching；
13：Overlapping region；
201：Coil.
Specific implementation mode
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 is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more this feature surely.The present invention's
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
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
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
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.
Stator core 100 according to the ... of the embodiment of the present invention is described below with reference to Fig. 1-Figure 16.
As shown in Fig. 1-Figure 16, the stator core 100 of embodiment, including multiple stator punchings according to a first aspect of the present invention
1。
Specifically, referring to Figures 1 and 2, multiple stator punchings 1 in an axial direction (for example, in Fig. 1 stator punching 1 thickness side
To) stacked, each stator punching 1 includes circumferentially end to end multiple piecemeal tooth yoke portions 11 successively, each piecemeal tooth yoke portion
11 include yoke section 111 and are connected to the teeth portion 112 of the inside of yoke section 111, the circumferentially head and the tail phase successively of multiple yoke sections 111
Even, stator slot 113 is limited between two neighboring teeth portion 112.Here, it should be noted that direction "inner" can be understood as court
To the direction at 1 center of stator punching, opposite direction is defined as "outside", the i.e. direction far from 1 center of stator punching.
As shown in fig. 6, crossing the central axis of stator punching 1 and relative to the symmetrical plane of teeth portion 112 1121 to yoke section
The straight line that 111 circumferential both ends deflect equal angular respectively is radial divisional plane 1122, the circumferential both ends end face of yoke section 111
(for example, the left side in Fig. 6 and right side) is parallel with corresponding radial divisional plane 1122 respectively, and circumferential the two of yoke section 111
First end 1111 (for example, left end in Fig. 6) in end is located at the symmetrical plane of corresponding radial divisional plane 1122 and teeth portion 112
Between 1121, the second end 1112 (for example, right end in Fig. 6) in the circumferential both ends of yoke section 111 is located at corresponding radial direction point
The side of the symmetrical plane 1121 of the separate teeth portion 112 of face 1122.At this time the above-mentioned first end 1111 of yoke section 111 with it is corresponding
The radial divisional plane 1122 in left side have a certain distance, the above-mentioned second end 1112 of yoke section 111 exceeds to the right corresponding right side
1122 certain distance of radial divisional plane.The length that yoke section 111 extends with right side to the left from the symmetrical plane 1121 of teeth portion 112
Degree differs, and the length that yoke section 111 extends to the left from the symmetrical plane 1121 of teeth portion 112 is less than it from the symmetrical of teeth portion 112
The length that plane 1121 extends to the right, yoke section 111 are asymmetrical about the symmetrical plane 1121 of above-mentioned teeth portion 112.
Keep the circumferential both ends end face of yoke section 111 parallel with corresponding radial divisional plane 1122 respectively by setting as a result,
For example, the circumferential both ends end face of yoke section 111 can be respectively formed as plane, processed on stator punching 1 with traditional needs
Go out protrusion to compare with recess portion, the precision and complexity of mold is reduced, to reduce manufacturing cost.Moreover, being made by setting
First end 1111 in the circumferential both ends of yoke section 111 is located at the symmetrical plane of corresponding radial divisional plane 1122 and teeth portion 112
Between 1121, and the second end 1112 in the circumferential both ends of yoke section 111 is made to be located at the separate of corresponding radial divisional plane 1122
The side of the symmetrical plane 1121 of teeth portion 112 can be well realized hereinafter when multiple stator punchings 1 are axially stacked
It is described that " the circumferential both ends end face of at least two yoke section 111 in multiple stator punchings 1 is perpendicular to stator core 100
Central axis where plane on projection not exclusively overlap ".
The above-mentioned first end 1111 of any one yoke section 111 of each stator punching 1 is upper with adjacent yoke section 111
Second end 1112 is stated to be disposed adjacent.For example, in the figure 2 example, each stator punching 1 of stator core 100 can be by one
Piecemeal tooth yoke portion 11 obtains for 12 parts using the center of stator punching 1 as center of circle swivel replication.Thus, it is possible to ensure well circumferential
Gapless between two neighboring yoke section 111, to solve gap near the rotary shaft due to traditional stator core 100
Electric efficiency caused by there is the additional air gap of generation declines, that is to say, that when stator according to the ... of the embodiment of the present invention
When iron core 100 is applied to motor, electric efficiency can be promoted.
The circumferential both ends end face of at least two yoke section 111 in multiple stator punchings 1 is (for example, two neighboring yoke portion
Joint face between section 111) projection in the plane where the central axis perpendicular to stator core 100 not exclusively overlaps.
Including following two situations here,：The first, the week of the yoke section 111 of at least two stator punchings 1 in multiple stator punchings 1
It is completely misaligned to projection of the both ends end face in the plane where the central axis perpendicular to stator core 100, it is above-mentioned at this time
The joint face of at least two stator punchings 1 is staggered completely in the circumferential direction of stator core 100；The second, multiple stator punchings 1
In at least two yoke section 111 circumferential both ends end face in the plane where the central axis perpendicular to stator core 100
On projection only partially overlap, for example, shown in fig. 7 intersect at a point.Made in multiple stator punchings 1 by setting as a result,
At least two yoke section 111 circumferential both ends end face in the plane where the central axis perpendicular to stator core 100
Projection not exclusively overlap, the additional additional air gap and vortex brought by joint face can be improved, it is opposite to improve motor effect
Rate, and when stator core 100 according to the ... of the embodiment of the present invention is applied to motor, stator punching 1 when can be run to avoid high frequency
Between the eddy-current loss that is formed.Moreover, because axis of the junction of circumferential two neighboring yoke section 111 in stator core 100
There are overlapping region 13, the rigidity of stator core 100 according to the ... of the embodiment of the present invention to use block stator relative to traditional upwards
The rigidity of the stator core 100 of 100 structure of iron core is big, to be applied to when stator core 100 according to the ... of the embodiment of the present invention
When compressor, compressor can be made to have preferable noise.
In punching and heat treatment process, stator core 100 can be kept stator core 100 according to the ... of the embodiment of the present invention
It is integral；And in winding process, stator core 100 can be opened by auxiliary mould, unlimitedly carry out coiling.
Specifically, for example, shown in the example of Fig. 8-Figure 13 has 12 piecemeals including each stator punching 1
The stator core 100 in tooth yoke portion 11.Wherein, Fig. 8 is stereogram when stator core 100 is in initial, expanded condition a, and definition is fixed
Piecemeal tooth yoke portion 11 on the right side of at 100 expansion of sub- iron core is number one piecemeal tooth yoke portion 11, and the piecemeal tooth yoke portion 11 in left side is the
Ten No. two piecemeal tooth yoke portions 11, ten piecemeal tooth yoke portions 11 in the circumferential direction of stator core 100 along clockwise direction, intermediate according to
Secondary is No. second to ride on Bus No. 11 piecemeal tooth yoke portion 11.As can be seen from Figure 8, stator core 100 can be with No. seven piecemeal
Some rotary shaft rotation of the seam crossing in tooth yoke portion 11 and No. eight piecemeal tooth yoke portion 11 outside stator core 100, so as to
The full circle state shown in Fig. 1 of stator core 100 is launched into separated position.
The front view of stator core 100 when Fig. 9 is in initial, expanded condition a shown in Fig. 8, wherein dotted line represent
The invisible seam of axial bed joint.May determine that from Fig. 9, stator core 100 can be by stator core 100 outside
The closed state conversion shown in Fig. 1 of stator core 100 is in an open state by rotary shaft, and in the process, piecemeal tooth yoke
Seam between portion 11 facilitates coiling without interference so as to realize the smooth expansion of stator core 100.
Figure 10 be stator core 100 further spread out from initial, expanded condition a shown in Fig. 9 be in line state c before in
Between unfolded state b when schematic diagram.It can be seen from fig. 10 that during being deployed into linear state c, adjacent piecemeal tooth
Still there is part interlaced with each other between yoke portion 11.Wherein, the center of circle of the circle outside stator core 100 is located at shown in Figure 10
To be launched into the center of circle of the rotary shaft under linear state c.
Figure 11 is the stereogram that stator core 100 further spreads out the state c that is in line from the intermediate unfolded state b of Figure 10,
As can be seen that still have overlapped region between piecemeal tooth yoke portion 11 adjacent to each other in 12 piecemeal tooth yoke portions 11,
The difficulty of full circle state shown in FIG. 1 is reverted to by linear state c after the completion to reduce 100 coiling of stator core, and is carried
High manufacture efficiency.
Figure 12 and Figure 13 is schematic diagram when stator core 100 is deployed into limiting condition d.It can be seen from the figure that 12
Still there is fraction region intermeshing together between a piecemeal tooth yoke portion 11, meanwhile, the teeth portion 112 in each piecemeal tooth yoke portion 11
There are the space of large area in both sides, to provide larger space for the coiling simultaneously of 12 teeth portion 112, improve teeth portion 112
The flatness of coiling further improves the copper factor of stator.
As a result, when the stator core of the embodiment of the present invention 100 carries out the techniques such as Gao Chong, heat treatment, use is shown in FIG. 1
Unitary closed state reduces traditional piecemeal split process, improves manufacturing efficiency.When stator core 100 need into
When row coiling, stator core 100 can be launched into state shown in Figure 11 or Figure 12, carry out coiling by auxiliary mould.It is fixed
Stator core 100 can be fixed by auxiliary mould, insulated by the state shown in Figure 11 or Figure 12 of sub- iron core 100
The insertion and coiling of block (not shown).After the completion of 100 coiling of stator core, by auxiliary mould, make stator core 100
It is closed to state shown in FIG. 1, and fixation appropriate is carried out to stator core 100 in seam crossing, complete stator is formed, to keep away
Exempt from the expansion again of stator core 100.
Here, it should be noted that since the axial both ends end face of yoke section 111 is arranged respectively to and corresponding radial direction point
Face 1122 is parallel, other than using Fig. 8-straight line expansion modes shown in Fig. 10, stator iron according to the ... of the embodiment of the present invention
Core 100 can also be unfolded by the way of radially extracting out, specifically, for example, can be by stator core shown in Fig. 1
The radially extraction outward of axially stacked pile piecemeal tooth yoke portion 11 in 100 multiple stator punchings 1, obtain Fig. 4 and
Multiple piecemeal tooth yoke portions 11 are stacked shown in Fig. 5 in the axial direction, the operations such as coiling can be carried out later.It is understood that
The specific expansion mode of stator core 100 can specifically be chosen according to practical application, preferably to meet actual requirement.
Stator core 100 according to the ... of the embodiment of the present invention, by setting make the circumferential both ends end face of yoke section 111 respectively with
Corresponding radial direction divisional plane 1122 is parallel, and the operations such as follow-up coiling are carried out to facilitate stator core 100.Moreover, by setting
Set first end 1111 in the circumferential both ends for making yoke section 111 be located at corresponding radial divisional plane 1122 and symmetrical plane 1121 it
Between, the second end 1112 in the circumferential both ends of yoke section 111 is located at the separate symmetrical plane of corresponding radial divisional plane 1122
1121 side, and the circumferential both ends end face of the yoke section 111 of at least two in multiple stator punchings 1 is perpendicular to stator iron
The projection in plane where the central axis of core 100 not exclusively overlaps, and improves the integral rigidity of stator core 100, when fixed
When sub- iron core 100 is applied to motor, eddy-current loss when high frequency operation can be reduced, copper factor is improved, so as to promote electricity
Engine efficiency, and reduce noise when work.
According to some embodiments of the present invention, referring to Fig.1 and combine Fig. 2 and Fig. 3, each stator punching 1 any one
The inner peripheral surface of the above-mentioned first end 1111 of yoke section 111 and the inner peripheral surface of the above-mentioned second end 1112 of adjacent yoke section 111 exist
The radially stagger setting of stator punching 1.Thus, it is possible to flux density is improved, and when stator core 100 is applied to motor, Ke Yiti
High electric efficiency, to improve the performance of motor.Moreover, facilitating the processing and manufacturing of stator punching 1, difficult processing is reduced
Degree, so as to reduce cost.
According to some embodiments of the present invention, as shown in Figures 2 and 3, each stator punching 1 is in two neighboring yoke section
The peripheral surface of 111 junction is located at the inside of the peripheral surface of the correspondence teeth portion 112 of stator punching 1.As a result, by by stator iron
The maximum sized inside in 100 periphery of entire stator core is arranged at the position of the correspondence seam of core 100, for example, working as stator iron
When core 100 is mounted in the shell of compressor, seam crossing will not be contacted with the inner wall of shell so that the seam of stator core 100
Place does not stress, and so as to reduce iron loss, and reduces vibrating noise when work.
Further, with reference to Fig. 2 and in conjunction with Fig. 3, the peripheral surface of the first end 1111 of each yoke section 111 has first week
The peripheral surface of face section 1113 and second end 1112 has the second circumferential surface section 1114, the first circumferential surface section 1113 and the second circumferential surface section 1114
Positioned at the inside of the peripheral surface of the correspondence teeth portion 112 of stator punching 1, and in the circumferential direction of stator punching 1, the first circumferential surface section 1113
Length be less than the second circumferential surface section 1114 length.As a result, due to the length of the second end 1112 of yoke section 111 be more than its first
The length at end 1111 makes the length of the first circumferential surface section 1113 be less than the length of the second circumferential surface section 1114, is ensureing to determine by setting
While the seam crossing of sub- iron core 100 is not stressed to reduce iron loss and vibrating noise, the correspondence teeth portion of yoke section 111 can be made
112 peripheral surface is substantially symmetric along the symmetrical plane 1121 of teeth portion 112, to keep the structure of entire stator core 100 more equal
It is even, it ensure that the structural strength of stator core 100.
Optionally, the periphery of the correspondence teeth portion 112 of the peripheral surface and stator punching 1 at the circumferential both ends of each yoke section 111
Face is respectively formed as cambered surface.The outer diameter of the seam crossing of stator core 100 is less than the maximum outside diameter of stator core 100 at this time.As a result,
The processing of stator core 100 is facilitated, and stator core 100 can preferably coordinate in the columnar shell of compressor.
According to some embodiments of the present invention, as shown in fig. 6, the circumferential both ends end face of yoke section 111 respectively with it is corresponding
The distance of radial divisional plane 1122 is equal.The processing for facilitating stator core 100 as a result, has saved cost.
Optionally, between any one end end face in the circumferential both ends of yoke section 111 and corresponding radial divisional plane 1122
Distance be d, wherein distance d meets：0.5mm≤d≤5mm.As a result, when distance d is less than 0.5mm, between stator punching 1
Overlapping region 13 is too small, and the rigidity of stator core 100 is difficult to ensure, will increase the vibrating noise of motor；When distance d is more than 5mm
When, the overlapping region 13 between stator punching 1 is too big, increases stator core 100 in the full circle state expansion shown in Fig. 1
To the difficulty of unfolded state shown in Figure 11 or Figure 12, manufacturing is poor.In other words, by will distance d setting 0.5mm~
Between 5mm, the manufacturing property of stator core 100 is improved, and ensure that the rigidity of stator core 100, reduces shaking for motor
Dynamic noise.Further, d further meets：D=2mm.
According to some embodiments of the present invention, as shown in fig. 6, in multiple stator punchings 1 above-mentioned at least two it is all
Overlapping area the sum of of the circumferential both ends of yoke section 111 in the plane where the central axis perpendicular to stator core 100 accounts for
5% or more of the area of stator punching 1.For example, referring to Fig. 6, when multiple stator punchings 1 include the circumferential both ends of yoke section 111
At least two stators punching that projection of the end face in the plane where the central axis perpendicular to stator core 100 not exclusively overlaps
When piece 1, the circumferential both ends of all yoke sections 111 of both stator punchings 1 are in the central axis institute perpendicular to stator core 100
Plane on the sum of overlapping area account for stator punching 1 area 5% or more (including 5%).As a result, if setting make it is more
The circumferential both ends of above-mentioned at least two all yoke sections 111 in a stator punching 1 are perpendicular to the center of stator core 100
The 5% of the area of stator punching 1 is not achieved in the sum of the overlapping area in plane where axis, then axially stacked piecemeal tooth
The overlapping area of the end in yoke portion 11 will be smaller so that and the rigidity of entire stator core 100 is inadequate, and so that contact surface
Product is smaller, to reduce frictional force, increases radial vibration when motor work, and then will produce larger vibrating noise.
That is, by by the circumferential both ends of all yoke sections 111 of above-mentioned at least two in multiple stator punchings 1 perpendicular to
The sum of the overlapping area in plane where the central axis of stator core 100 be set as accounting for the 5% of the area of stator punching 1 with
On, the rigidity of entire stator core 100 can be improved, radial vibration when motor work and vibrating noise are reduced.
Some specific embodiments according to the present invention, as shown in Fig. 1, Fig. 4-Fig. 5 and Figure 14-Figure 15, multiple stator punchings 1
12 groups of the first stator punching of at least one set including axially staggered arrangement and at least one set of 1 group of second stator punching, every group the
One 12 groups of stator punching include in circumferential direction along clockwise direction, the first end 1111 of same yoke section 111 be located at second end
At least one first stator punching 12 (as shown in Figure 2) of 1112 upstream, every group of 1 group of second stator punching includes in the circumferential
Along clockwise direction, the first end 1111 of same yoke section 111 is located at least one second stator in the downstream of second end 1112
Punching 1.For example, referring to Fig. 4 and Fig. 5 is combined, symmetrical plane 1121 of the axial corresponding multiple piecemeal tooth yoke portions 11 along teeth portion 112
Positive and negative to be staggeredly overrided to form, the minimum interval staggeredly positive and negative in the axial direction of stator punching 1 is a piece of.As a result, by using by upper
The second stator punching stated 12 groups of the first stator punching of the first stator punching 12 composition and be made of above-mentioned second stator punching 1
1 group, the processing of stator core 100 is facilitated, cost is reduced.
For example, in the example of Fig. 1 and Fig. 4-Fig. 5, multiple stator punchings 1 include multigroup the first of axially staggered arrangement
1 group of 12 groups of stator punching and multigroup second stator punching, every group of 12 groups of first stator punching include an above-mentioned first stator punching
Piece 12,1 group of multigroup second stator punching include above-mentioned second stator punching 1.In the example of Figure 14 and Figure 15, Duo Geding
Sub- punching 1 includes 1 group, every group first of 12 groups of multigroup first stator punching and multigroup second stator punching of axially staggered arrangement
12 groups of stator punching includes three above-mentioned first stator punchings 12, and 1 group of multigroup second stator punching includes three above-mentioned second fixed
Sub- punching 1.It is understood that the first stator punching 12 in every group of 12 groups of first stator punching and every group of second stator punching
The number of the second stator punching 1 in 1 group can be specifically arranged according to actual requirement, preferably to meet practical application.
Moreover, as shown in Fig. 7 and Figure 15, since seam crossing is staggered completely in the axial direction, motor is run in high frequency
When, the vortex of 100 seam crossing of stator core will not form larger cycle, therefore use stator according to the ... of the embodiment of the present invention
Iron core 100 has the iron loss as monoblock type iron core.Simultaneously as can be formed for example between adjacent piecemeal tooth yoke portion 11
The interlaced area of 4mm long, stator core 100 circumferentially the rigidity of end to end multiple yoke sections 111 is improved successively,
The radial vibration of motor is smaller.
Optionally, as depicted in figs. 1 and 2, it is formed with dovetail groove 1115 on the peripheral surface of each yoke section 111.Lead to as a result,
Setting dovetail groove 1115 is crossed, when needing coiling, stator core 100 can be unfolded by auxiliary mould (not shown), is had
Body, auxiliary mould may include the multiple tooling blocks being pivotly connected successively, and each tooling block can have and dovetail groove
The location structures of 1115 cooperations, multiple tooling blocks can be located at the outside of stator core 100, and by location structure respectively with it is right
The yoke section 111 along multiple piecemeal tooth yoke portions 11 that axis is stacked answered is fixed, and edge can be driven when multiple tooling blocks are unfolded
Stacked multiple 11 synchronous expansions of piecemeal tooth yoke portion of axis, to realize coiling.Certainly, on the peripheral surface of each yoke section 111
T-slot (not shown) etc. can also be formed with.
In winding process, stator core 100 according to the ... of the embodiment of the present invention can open carry out coiling completely, therefore,
The size of the notch of stator slot 113 can not be limited by wire winding, be optimized.For example, as shown in figure 16, stator slot
The width of 113 notch is 2mm, since stator core 100 is closed after coiling, two in same stator slot 113
The distance between a adjacent windings 201 can be made as small as possible, in same stator slot 113 between two adjacent windings 201
Distance can accomplish 1mm.Copper factor is improved as a result, and coil 201 can be with proper alignment in stator slot 113.
Optionally, the thickness of each stator punching 1 is less than 1mm.But not limited to this.
Optionally, each stator punching 1 is the silicon steel sheet that thickness is more than 0.3mm.But not limited to this.
It should be noted that showing 12 stator slots 113 in Fig. 1 and Figure 14 for illustration purposes, still
Those of ordinary skill after having read following technical solution, be clearly understood that the program is applied to less than 12 or
More than in the technical solution of 12 stator slots 113, this also falls within protection scope of the present invention person.
Stator core 100 according to the ... of the embodiment of the present invention, in 100 punching of stator core and heat treatment process, stator iron
Core 100 is maintained as an entirety, and in winding process, stator core 100 can be opened by auxiliary mould, unlimitedly be carried out
Coiling.Meanwhile the seam crossing of stator core 100 can be staggered completely in the axial direction, when avoiding high frequency operation between stator punching 1
Form eddy-current loss.In addition, the yoke section 111 of multiple stator punchings 1 has larger overlapping region 13, stator core is improved
100 integral rigidity so that the compressor using the stator core 100 of the embodiment of the present invention has preferable noise.
The motor of embodiment according to a second aspect of the present invention includes the stator according to the above-mentioned first aspect embodiment of the present invention
Iron core 100.Wherein, motor can be widely applied in the household electrical appliance such as fan, air conditioner.But not limited to this.
Motor according to the ... of the embodiment of the present invention is full increasing substantially motor slot by using above-mentioned stator core 100
It, can be with the notch of relatively small stator slot 113, so as to improve the market competitiveness of motor while rate.
The compressor of embodiment according to a third aspect of the present invention includes the electricity according to the above-mentioned second aspect embodiment of the present invention
Machine.
Compressor according to the ... of the embodiment of the present invention, under the premise of maintaining compressor reliability constant so that the body of motor
Product can substantially reduce, and be advantageously implemented the miniaturization of compressor.
Other of compressor according to the ... of the embodiment of the present invention are constituted and are operated for those of ordinary skills
All it is known, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means 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
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (14)
1. a kind of stator core, which is characterized in that including：
Axially stacked multiple stator punchings, each stator punching include circumferentially end to end multiple piecemeals successively
Tooth yoke portion, each piecemeal tooth yoke portion include yoke section and the teeth portion that is connected on the inside of the yoke section, multiple yoke portions
Section circumferentially joins end to end successively, and stator slot, the central shaft of the excessively described stator punching are limited between the two neighboring teeth portion
Line and relative to the symmetrical plane of the teeth portion to the circumferential both ends of the yoke section deflect respectively equal angular straight line be diameter
To divisional plane, the circumferential both ends end face of the yoke section is parallel with the corresponding radial divisional plane respectively, the yoke section
First end in circumferential both ends is located between the corresponding radial divisional plane and the symmetrical plane, the circumferential direction of the yoke section
Second end in both ends is located at the side far from the symmetrical plane of the corresponding radial divisional plane, each stator punching
The first end of any one of yoke section of piece is disposed adjacent with the second end of the adjacent yoke section, multiple
The circumferential both ends end face of at least two yoke section in the stator punching is perpendicular to the center of the stator core
The projection in plane where axis not exclusively overlaps.
2. stator core according to claim 1, which is characterized in that any one of yoke of each stator punching
The inner peripheral surface of the second end of the inner peripheral surface of the first end of section and the adjacent yoke section is in the stator punching
Radially stagger setting.
3. stator core according to claim 1, which is characterized in that each stator punching is in the two neighboring yoke
The peripheral surface of the junction of section is located at the inside of the peripheral surface of the correspondence teeth portion of the stator punching.
4. stator core according to claim 3, which is characterized in that the periphery of the first end of each yoke section
Peripheral surface of the face with the first circumferential surface section and the second end is with the second circumferential surface section, the first circumferential surface section and the second week
Face section is located at the inside of the peripheral surface of the correspondence teeth portion of the stator punching, and in the circumferential direction of the stator punching, institute
The length for stating the first circumferential surface section is less than the length of the second circumferential surface section.
5. stator core according to claim 3, which is characterized in that the peripheral surface at the circumferential both ends of each yoke section
It is respectively formed as cambered surface with the peripheral surface of the correspondence teeth portion of the stator punching.
6. stator core according to claim 1, which is characterized in that the circumferential both ends end face of the yoke section respectively with it is right
The distance for the radial divisional plane answered is equal.
7. stator core according to claim 1, which is characterized in that any one end in the circumferential both ends of the yoke section
The distance between end face and corresponding described radial divisional plane are d, wherein the d meets：0.5mm≤d≤5mm.
8. stator core according to claim 1, which is characterized in that described at least two in multiple stator punchings
All yoke sections overlapping area of the circumferential both ends in the plane where the central axis perpendicular to stator core it
With 5% or more of the area for accounting for the stator punching.
9. according to the stator core described in any one of claim 1-8, which is characterized in that multiple stator punchings include edge
At least one set the first stator punching group of axially staggered arrangement and at least one set of second stator punching group, the first stator described in every group
Punching group include in circumferential direction along clockwise direction, the first end of the same yoke section be located at the upstream of the second end
At least one first stator punching, the second stator punching group described in every group include in circumferential direction along clockwise direction, same institute
State yoke section the first end be located at the second end downstream at least one second stator punching.
10. stator core according to claim 1, which is characterized in that be formed on the peripheral surface of each yoke section
Dovetail groove or T-slot.
11. stator core according to claim 1, which is characterized in that the thickness of each stator punching is less than 1mm.
12. stator core according to claim 11, which is characterized in that each stator punching is more than for thickness
The silicon steel sheet of 0.3mm.
13. a kind of motor, which is characterized in that include the stator core according to any one of claim 1-12.
14. a kind of compressor, which is characterized in that including motor according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549772.9A CN108471178A (en) | 2018-05-31 | 2018-05-31 | Stator core and motor, compressor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549772.9A CN108471178A (en) | 2018-05-31 | 2018-05-31 | Stator core and motor, compressor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108471178A true CN108471178A (en) | 2018-08-31 |
Family
ID=63260666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810549772.9A Pending CN108471178A (en) | 2018-05-31 | 2018-05-31 | Stator core and motor, compressor with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108471178A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227841A1 (en) * | 2018-05-31 | 2019-12-05 | 广东美芝制冷设备有限公司 | Stator core, stator and motor |
| CN110601389A (en) * | 2019-09-17 | 2019-12-20 | 安徽皖南电机股份有限公司 | Motor inner stator |
| CN112366843A (en) * | 2020-11-05 | 2021-02-12 | 宁波震裕科技股份有限公司 | Manufacturing method of stator core |
| CN114157056A (en) * | 2021-12-03 | 2022-03-08 | 广东美芝制冷设备有限公司 | Stator core, motor, compressor and refrigeration plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009065833A (en) * | 2008-12-26 | 2009-03-26 | Mitsubishi Electric Corp | Laminated core and manufacturing method thereof |
| CN107332369A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Motor stator core and compressor |
| CN107425619A (en) * | 2017-08-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | Stator module, motor and compressor |
| CN208209642U (en) * | 2018-05-31 | 2018-12-07 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
| CN208226692U (en) * | 2018-05-31 | 2018-12-11 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
-
2018
- 2018-05-31 CN CN201810549772.9A patent/CN108471178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009065833A (en) * | 2008-12-26 | 2009-03-26 | Mitsubishi Electric Corp | Laminated core and manufacturing method thereof |
| CN107332369A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Motor stator core and compressor |
| CN107425619A (en) * | 2017-08-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | Stator module, motor and compressor |
| CN208209642U (en) * | 2018-05-31 | 2018-12-07 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
| CN208226692U (en) * | 2018-05-31 | 2018-12-11 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227841A1 (en) * | 2018-05-31 | 2019-12-05 | 广东美芝制冷设备有限公司 | Stator core, stator and motor |
| CN110601389A (en) * | 2019-09-17 | 2019-12-20 | 安徽皖南电机股份有限公司 | Motor inner stator |
| CN112366843A (en) * | 2020-11-05 | 2021-02-12 | 宁波震裕科技股份有限公司 | Manufacturing method of stator core |
| CN114157056A (en) * | 2021-12-03 | 2022-03-08 | 广东美芝制冷设备有限公司 | Stator core, motor, compressor and refrigeration plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108471178A (en) | Stator core and motor, compressor with it | |
| JP2012023861A (en) | Armature core and motor | |
| KR20110103983A (en) | Stator | |
| JP2009195011A (en) | Generator for vehicle | |
| CN208209642U (en) | Stator core and motor, compressor with it | |
| CN113346644A (en) | Permanent magnet motor | |
| CN113346652A (en) | Permanent magnet motor | |
| CN107026518A (en) | Stator module and motor and electronic pump with the stator module | |
| WO2023103694A1 (en) | Stator, motor, compressor and electrical apparatus | |
| JP4834753B2 (en) | Stator manufacturing method and motor | |
| CN208226692U (en) | Stator core and motor, compressor with it | |
| CN106374652A (en) | Rotor iron core, rotor and self-starting permanent magnet synchronous motor | |
| JP5840071B2 (en) | Method for manufacturing laminated core of electric motor | |
| JP2001128395A (en) | Dynamo-electric machinery, compressor and manufacture of the dynamo-electric machinery | |
| CN217984682U (en) | Stator and rotor core structure for permanent magnet synchronous motor | |
| KR101636463B1 (en) | Stator core for motor | |
| CN208272720U (en) | Stator core, Stator and electrical machine | |
| JPS58165640A (en) | Laminated core of rotary electric machine | |
| JP2018117477A (en) | Stator manufacturing method | |
| Akita et al. | A new core | |
| JP5303958B2 (en) | Electric motor and fixing method of electric motor stator | |
| CN206948045U (en) | Field frame assembly and motor | |
| CN217984684U (en) | Half-tooth stator punching sheet and iron core, split stator punching sheet and iron core and stator iron core | |
| CN205453322U (en) | Stator is towards piece, stator module and external rotor electric machine | |
| CN211958873U (en) | Motor stator and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190509 Address after: 528311 Building No. 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Welling Automobile Parts Co., Ltd. Address before: 528333 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Applicant before: Guangdong Meizhi Compressor Ltd. |