CN108667237A - The manufacturing method of stator core - Google Patents
The manufacturing method of stator core Download PDFInfo
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- CN108667237A CN108667237A CN201810551040.3A CN201810551040A CN108667237A CN 108667237 A CN108667237 A CN 108667237A CN 201810551040 A CN201810551040 A CN 201810551040A CN 108667237 A CN108667237 A CN 108667237A
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- stator core
- punching
- punching section
- manufacturing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of manufacturing methods of stator core, stator core includes multiple laminations, axially stacked setting of multiple laminations along stator core, each iron chip type becomes cyclic structure and includes the multiple punching sections circumferentially set gradually from beginning to end, seam is formed between two neighboring punching section, is staggered along the axial direction of stator core, the seam of n-th layer and the n-th+m layers of seam, wherein, n, m is positive integer, and n, m meet n >=1, m >=1 respectively.Manufacturing method includes the following steps：Linearly multiple punching sections of punching press successively on the steel plate, and multiple punching sections head and the tail are set gradually to be spliced into lamination；By multiple laminations along the axially stacked setting of lamination.The manufacturing method of stator core according to the present invention, process is simple, convenient to carry out, effectively increases the stock utilization of steel plate, reduces the material cost of stator core, facilitates the transport of stator core, circulates and take.
Description
Technical field
The present invention relates to technical field of motor manufacture, more particularly, to a kind of manufacturing method of stator core.
Background technology
Piecemeal iron core is common stator core construction so that stator core can open the winding space of stator winding,
To insert more copper wire in the stator slot of stator core to improve the utilization rate of stator slot, to reduce the electricity of stator winding
Resistance, and then the efficiency of motor is improved, to save electric energy.
In the related technology, there is following problem in stator core in the fabrication process：Stator core generally requires at least
12 piecemeal iron cores, the manufacture for completing a stator core need to produce, transport, take at least 12 piecemeal iron cores so that fixed
The manufacture efficiency of sub- iron core is low, manufacturing cost is high；It when punching press punching section, needs while punching press rotational structure so that diel
And stamping equipment is complicated, manufacturing cost is higher；The utilization rate of steel plate is relatively low so that the material cost of stator core is higher.
Invention content
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 manufacturing method of sub- iron core, the manufacturing method process is simple, convenient to carry out, effectively increases the stock utilization of steel plate, drop
The low material cost of stator core, facilitates the transport of stator core, circulates and take.
The manufacturing method of stator core according to the ... of the embodiment of the present invention, the stator core includes multiple laminations, multiple
For the lamination along the axially stacked setting of the stator core, each iron chip type is as cyclic structure and includes along week
To the multiple punching sections set gradually from beginning to end, seam is formed between the two neighboring punching section, along the axis of the stator core
It being staggered to, the seam of n-th layer with the n-th+m layers of the seam, wherein described n, m are positive integer, and the n,
M meets n >=1, m >=1 respectively；The manufacturing method includes the following steps：Linearly multiple institutes of punching press successively on the steel plate
Punching section is stated, and multiple punching section head and the tail are set gradually to be spliced into the lamination；By multiple lamination edges
The axially stacked setting of the lamination.
The manufacturing method of stator core according to the ... of the embodiment of the present invention, process is simple, convenient to carry out, effectively increases steel plate
Stock utilization, reduce the material cost of stator core, while stator core construction is firm, have good entirety rigid
Property, transport is facilitated, circulates and takes, when stator core is applied to motor, effectively improves the manufacture efficiency of motor.
According to some embodiments of the present invention, each punching section includes the radially connected yoke along the stator core
Portion and teeth portion form stator slot between the two neighboring teeth portion, multiple in the multiple punching sections of punching press on the steel plate
The punching section include the first punching section group and the second punching section group, the first punching section group include be arranged along a straight line it is multiple
First punching section, the second punching section group include the multiple second punching sections being arranged along a straight line, two neighboring first punching
First punching there are one being set between the second punching section, the two neighboring second punching section there are one being set between segment
Section, and the teeth portion of the first punching section and the teeth portion of the second punching section are positioned opposite to each other.
According to some embodiments of the present invention, the two neighboring lamination is connected by multiple rivets.
According to some embodiments of the present invention, multiple rivet one-to-one correspondence are located in multiple punching sections.
According to some embodiments of the present invention, the rivet and the corresponding punching section punch forming simultaneously.
According to some embodiments of the present invention, the lamination along the axial direction of the stator core, from the n-th layer is extremely
The shape of n-th+b layers of the lamination is identical, wherein the b is positive integer, and the b meets：b≥1.
According to some embodiments of the present invention, the punching section along the axial direction of the stator core, from the n-th layer is extremely
The shape of described n-th+b layers of the punching section is identical.
According to some embodiments of the present invention, the minimum clearance of the seam is x, and the x meets：x≤0.02mm.
According to some embodiments of the present invention, the thickness of each punching section is t, and the t meets：t≤0.5mm.
According to some embodiments of the present invention, the seam is formed as straightway.
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 flow diagram of the manufacturing method of stator core according to the ... of the embodiment of the present invention；
Fig. 2 is the processing method schematic diagram of punching section according to the ... of the embodiment of the present invention；
Fig. 3 is another schematic diagram of the manufacturing method of stator core shown in Fig. 1；
Fig. 4 is the structural schematic diagram of stator core according to the ... of the embodiment of the present invention；
Fig. 5 is the explosive view of stator core shown in Fig. 4；
Fig. 6 is the partial sectional view of two neighboring piecemeal iron core shown in Fig. 4；
Fig. 7 is the explosive view of the partial structurtes of two neighboring piecemeal iron core shown in Fig. 6；
Fig. 8 is the structural schematic diagram of the n-th layer lamination and the n-th+m layers of lamination of stator core shown in Fig. 4；
Fig. 9 is the fractionation of stator core according to the ... of the embodiment of the present invention and assembled process schematic；
Figure 10 is the fractionation of stator core in accordance with another embodiment of the present invention and assembled process schematic.
Reference numeral：
Stator core 100, rivet 100a, steel plate 101, waste material 101a,
Lamination 1, seam 10, punching section 11, stator slot 110a, yoke portion 111, teeth portion 112,
First punching section 113, the second punching section 114,
Piecemeal iron core 2.
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", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, specific side must be had by not indicating or implying the indicated device or element
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, defining " first ", "
Two " feature can explicitly or implicitly include one or more this feature.In the description of the present invention, unless otherwise
Illustrate, 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.
The manufacturing method of stator core 100 according to the ... of the embodiment of the present invention is described below with reference to Fig. 1-Figure 10.
As shown in Fig. 1-Figure 10, the manufacturing method of stator core 100 according to the ... of the embodiment of the present invention, stator core 100 wraps
Include multiple laminations 1, for multiple laminations 1 along the axially stacked setting of stator core 100, each lamination 1 is formed as cyclic annular knot
Structure and include the multiple punching sections 11 circumferentially set gradually from beginning to end, forms seam 10, along fixed between two neighboring punching section 11
The axial direction of sub- iron core 100, the seam of n-th layer 10 and the n-th+m layers of seam 10 are staggered, wherein and n, m are positive integer, and
N, m meets n >=1, m >=1 respectively.
For example, as shown in Figure 3-Figure 5, stator core 100 can be generally formed into tubular structure, and multiple laminations 1 are along iron
The thickness direction of chip 1 is sequentially stacked, and each punching section 11 can be generally formed into arc structure, and multiple punching sections 11 are along iron
The circumferential direction of chip 1 is set gradually from beginning to end, being provided at circumferentially spaced along lamination 1 between two neighboring punching section 11 so that
Seam 10, relative to each other two of two neighboring punching section 11 are formed between the both ends relative to each other of two neighboring punching section 11
The edge at end can be all formed as straightway or curved section so that seam 10 can be formed as straightway or curved section.
Wherein, it is staggered along the axial direction of stator core 100, the seam of n-th layer 10 and the n-th+m layers of seam 10 so that
The punching section 11 of n-th layer and the n-th+m layers of punching section 11 can overlap setting, and the seam 10 of every layer of lamination 1 can be only located at
In respective layer, that is to say, that the seam 10 of n-th layer does not extend in (n+1)th layer or (n-1)th layer, reduces the axis of lamination 1
To stitching error, the punching section 11 of different layers is avoided to occur interlayer vortex conducting phenomenon at seam 10, that is to say, that from avoiding
The vortex 100b of the punching section 11 of n-th layer will not be flow to by seam 10 in (n+1)th layer of punching section 11 or (n-1)th layer of punching
In section 11, to reduce the eddy-current loss of stator core 100, when stator core 100 is applied to motor, motor can be promoted
Efficiency；Meanwhile the punching section 11 for avoiding different layers is easily detached from, and improves the integral rigidity of stator core 100, when fixed
When sub- iron core 100 is applied to motor, the vibration and noise of motor can be effectively reduced, the applicability of motor is improved, improves
The experience effect of user.
Here, it should be noted that " being staggered " refers on the cross section of stator core 100, the seam of n-th layer 10
Projection and the projection of the n-th+m layers of seam 10 be not completely superposed, that is to say, that on the cross section of stator core 100, n-th
The projection of the seam 10 of layer can be completely misaligned with the projection of the n-th+m layers of seam 10, a part of can also overlap and another
Part is misaligned.
Manufacturing method includes the following steps：The linearly multiple punching sections 11 of punching press successively on steel plate 101, and will be more
A 11 head and the tail of punching section are set gradually to be spliced into lamination 1；By multiple laminations 1 along the axially stacked setting of lamination 1.
For example, as shown in Figure 1-Figure 3, firstly, it is necessary to multiple punching sections 11 are stamped and formed out, it specifically, can on steel plate 101
To be linearly stamped and formed out multiple punching sections 11 successively from left to right, to complete blanking, each punching section 11 can be substantially
Be formed as arc structure, multiple 11 head and the tail of punching section set gradually to be spliced into the lamination 1 of closed circular, wherein adjacent two
It being provided at circumferentially spaced along lamination 1 between a punching section 11 so that relative to each other two of two neighboring punching section 11
Seam 10 is formed between end；Then, the thickness direction by multiple laminations 1 along lamination 1 is cascading.It is above-mentioned as a result,
The manufacturing method process of stator core 100 is simple, convenient to carry out, effectively increases the stock utilization of steel plate 101, and it is fixed to reduce
The material cost of sub- iron core 100.
The manufacturing method of stator core 100 according to the ... of the embodiment of the present invention, process is simple, convenient to carry out, effectively increases
The stock utilization of steel plate 101 reduces the material cost of stator core 100, while 100 stabilized structure of stator core, has
Good integral rigidity facilitates transport, circulates and take, and when stator core 100 is applied to motor, effectively improves motor
Manufacture efficiency.
In some embodiments of the invention, each punching section 11 includes along the radially connected yoke portion of stator core 100
111 and teeth portion 112, stator slot 110a is formed between two neighboring teeth portion 112；In the multiple punching sections 11 of punching press on steel plate 101,
Multiple punching sections 11 include the first punching section group and the second punching section group, and the first punching section group includes multiple the to be arranged along a straight line
One punching section 113, the second punching section group include the multiple second punching sections 114 being arranged along a straight line, two neighboring first punching section
It is set between second punching section 114, two neighboring second punching section 114 there are one being set between 113 there are one the first punching section 113,
And first punching section 113 teeth portion 112 and the teeth portion 112 of the second punching section 114 it is positioned opposite to each other.
For example, as Figure 2-Figure 5, the yoke portion 111 of each punching section 11 is located at the outside of corresponding teeth portion 112 so that every
The teeth portion 112 of a punching section 11 is connected to the inner opposite end in corresponding yoke portion 111, and in the circumferential direction of stator core 100, teeth portion
112 width is less than the width in corresponding yoke portion 111.In the multiple punching sections 11 of punching press on steel plate 101, the first punching section group it is more
A first punching section 113 can be sequentially arranged along straight line from left to right, multiple second punching sections of corresponding second punching section group
114 can set gradually along straight line from left to right, and the first punching section group and corresponding second punching section group can be along the vertical direction
Interval setting；Corresponding second punching section 114 there are one being set between two neighboring first punching section 113, two neighboring second punching
Corresponding first punching section 113, the teeth portion 112 of the first punching section 113 and corresponding second punching section there are one being set between segment 114
114 teeth portion 112 is positioned opposite to each other so that the teeth portion 112 of the second punching section 114 can be placed in corresponding two neighboring first
Between the teeth portion 112 of punching section 113, the teeth portion 112 of the first punching section 113 can be placed in corresponding two neighboring second punching section
Between 114 teeth portion 112, and after steel plate 101 is stamped and formed out multiple punching sections 11,101 remaining part of steel plate is waste material 101a,
To further reduce waste material 101a proportions, the stock utilization of steel plate 101 is further improved, it is fixed to effectively reduce
The material cost of sub- iron core 100.
For example, in the figure 2 example, multiple punching sections 11 on steel plate 101 include two group of first punching section group and two groups
Second punching section group, two group of first punching section group and two group of second punching section group are arranged in a one-to-one correspondence respectively, two group of first punching
The one of which of section group and the one of which of two group of second punching Duan Zuzhong be correspondingly arranged, two group of first punching section group other one
Group and the another set of two group of second punching Duan Zuzhong are correspondingly arranged, multiple first punching sections 113 of every group of first punching section group
It is arranged along a straight line from left to right, multiple second punching sections 114 of every group of second punching group are arranged along a straight line from left to right；Two group
The teeth portion 112 of multiple first punching sections 113 of the above-mentioned one of which of one punching section group is upper with two group of second punching Duan Zuzhong's
The teeth portion 112 of stating multiple second punching sections 114 of one of which is positioned opposite to each other, two group of first punching section group it is above-mentioned in addition
Multiple the second of the teeth portion 112 of one group of multiple first punching sections 113 and the above-mentioned another set of two group of second punching Duan Zuzhong
The teeth portion 112 of punching section 114 is positioned opposite to each other and multiple first punchings of the above-mentioned another set of two group of first punching section group
The teeth portion 112 of multiple second punching sections 114 of the teeth portion 112 of section 113 and the above-mentioned one of which of two group of second punching Duan Zuzhong
It is arranged away from one another.
Further, as shown in Fig. 5, Fig. 9 and Figure 10, stator core 100 may include circumferentially setting gradually from beginning to end
Multiple piecemeal iron cores 2, multiple piecemeal iron cores 2 are set gradually from beginning to end along the circumferential direction of stator core 100, and each piecemeal iron core 2 includes
Along multiple punching sections 11 of the axially stacked setting of stator core 100.Multiple piecemeal iron cores 2 can be along stator core 100 as a result,
Circumferential direction and/or radial motion so that stator core 100 can be split as multiple piecemeal iron cores 2, at this time each piecemeal iron core 2
It is not have any connection structure etc. restrained each other between the structure being separately separated and any two piecemeal iron core 2 so that point
The degree of freedom of block iron core 2 is higher, convenient for carrying out coiling in piecemeal iron core 2, is conducive to the automated production of stator core 100, example
As rotation coiling may be implemented in piecemeal iron core 2, you can be compatible with the manufacture of flat electromagnetic wire winding coil, improve stator core
100 applicability；After the completion of 2 coiling of piecemeal iron core, multiple piecemeal iron cores 2 can be spliced into complete stator core again
100, to facilitate the manufacture of stator 200.
Specifically, two neighboring lamination 1 is connected by multiple rivet 100a.For example, as shown in figures 3 and 8, in stator
It is connected in the axial direction of iron core 100, between two neighboring lamination 1 by multiple rivet 100a, to realize two neighboring iron
Quick between chip 1 is connected, at the same ensure that connect between two neighboring lamination 1 it is reliable.
Optionally, as shown in Fig. 3-Fig. 5 and Fig. 8-Figure 10, multiple rivet 100a one-to-one correspondence are located at multiple punching sections 11
On, that is to say, that rivet 100a there are one being all provided in each punching section 11, to simplify the structure of punching section 11, rivet
100a can be simultaneously molded with punching section 11, for example, rivet 100a can with punching section 11 together punch forming, to promote stator
The processing efficiency of iron core 100.
Optionally, rivet 100a and 11 punch forming simultaneously of corresponding punching section, that is to say, that punching section 11 and the punching
Rivet 100a punch formings simultaneously in section, to promote the processing efficiency of stator core 100.Wherein, rivet 100a is rushed corresponding
Specific location in segment 11 can be specifically arranged according to practical application, such as rivet 100a can be located at corresponding punching section 11
At center, to ensure the integral rigidity of stator core 100.
In some specific embodiments of the present invention, the axial direction along stator core 100, the lamination 1 to the n-th from n-th layer+
The shape of b layers of lamination 1 is identical, wherein b is positive integer, and b meets：B >=1 so that the shape of stator core 100 is more
It is regular, facilitate the processing of stator core 100.For example, the lamination 1 of entire stator core 100 be z (z is positive integer, and z >=
2) layer, b can be less than or equal to z；Wherein, as b=z, the structure of stator core 100 is further simplified, stator is facilitated
The processing of iron core 100 reduces the diversity requirements of mold.
Further, the axial direction along stator core 100, the shape of the punching section 11 of 11 to the n-th+b layers of the punching section from n-th layer
Shape is identical, that is to say, that the shape all same of this b+1 layers of punching section 11, to facilitate the processing of punching section 11, convenient for real
The batch machining of existing punching section 11, promotes the processing efficiency of punching section, further reduced the diversity requirements of mold.For example,
In the example of Fig. 3-Fig. 5, b=1 ensure that the cooperation reliability at the circumferential both ends of punching section 11 at this point, n can be odd number,
The manufacture efficiency of stator core 100 is further increased simultaneously, ensures rigidity of the punching section 11 near seam 10.
It is understood that the punching section 11 of the axial direction along stator core 100,11 to the n-th+b layers of the punching section from n-th layer
Shape can be with not exactly the same；For example, the shape of the punching section 11 of 11 to the n-th+b layers of the punching section of n-th layer can be complete
It differing, the seam 10 of the adjacent two layers in n-th layer to the n-th+b layers is staggered at this time, but not limited to this.
In some specific embodiments of the present invention, the minimum clearance of seam 10 is x, and x meets：X≤0.02mm so that connect
Seam 10 has suitable minimum clearance, and the gap for avoiding seam 10 is excessive and causes to connect between two neighboring punching section 11 tired
Difficulty, to facilitate the assembly of punching section 11.
Optionally, the thickness of each punching section 11 is t, and t meets：T≤0.5mm so that punching section 11 has suitable thick
Degree, the thickness for avoiding punching section 11 is excessive and leads to 11 processing difficulties of punching section, to ensure that it is reliable that punching section 11 uses
Under the premise of property, facilitate the punch forming of punching section 11.
Specifically, seam 10 is formed as straightway.For example, in the example of Fig. 2-Fig. 5 and Fig. 8-Figure 10, two neighboring punching
The edge at the both ends relative to each other of segment 11 can be all formed as straightway, so that being formed between two neighboring punching section 11
Seam 10 be formed as straightway, to simplify the structure of punching section 11, to facilitate the processing of punching section 11.
Stator core according to the ... of the embodiment of the present invention is described in detail with a specific embodiment below with reference to Fig. 1-Figure 10
100 manufacturing method.It is worth understanding, it is described below to be merely illustrative, rather than to the concrete restriction of invention.
As shown in Fig. 1-Figure 10, stator core 100 includes 24 laminations of the axially stacked setting along stator core 100
The shape all same of 1,24 lamination 1, each lamination 1 are generally formed into closed ring-shaped structure and each lamination
1 includes the 12 punching sections 11 circumferentially set gradually from beginning to end, thickness t≤0.5mm of each punching section 11, two neighboring punching
Seam 10 is formed between section 11, seam 10 is formed as straightway, minimum clearance x≤0.02mm of seam 10, along stator core 100
Axial direction, the seam of n-th layer 10 be staggered with the n-th+m layers of seam 10, from rushing for 11 to the n-th+b layers of the punching section of n-th layer
The shape of segment 11 is identical, wherein n, m are positive integer, and n is odd number, m=2, b=1, can further increase stator iron
The manufacture efficiency of core 100 ensures rigidity of the punching section 11 near seam 10.
Specifically, on the cross section of stator core 100, the projection of the seam of n-th layer 10 and the n-th+m layers of seam 10
Angle α ≠ 0 ° between projection, and the projection institute of the straight line and the n-th+m layers of seam 10 where the projection of the seam 10 of n-th layer
The intersection point 10a of straight line be located in the projection in yoke portion 111 and at inner end edge of the projection of intersection point 10a positioned at yoke portion 111
(for example, as shown in Fig. 3-Fig. 5 and Fig. 9).
Certainly, the straight line on the cross section of stator core 100, where the projection of the seam of n-th layer 10 and the n-th+m layers
The intersection point of straight line where the projection of seam 10 may be located on the inside in yoke portion 111, and intersection point can be located at corresponding fixed at this time
(for example, as shown in Figure 10) in pilot trench 110 so that the overlapping area between two neighboring piecemeal iron core 2 is larger, to adjacent two
It is not easily disconnected from the axial direction of stator core 100 between a piecemeal iron core 2, only after piecemeal iron core 2 moves enough distances
Two adjacent piecemeal iron cores 2 can be kept completely separate, ensure that the intensity of stator core 100.
As shown in Fig. 4-Fig. 7, Fig. 9 and Figure 10, stator core 100 includes being set successively from beginning to end along the circumferential of stator core 100
The 12 piecemeal iron cores 2 set, each piecemeal iron core 2 include 24 punching sections 11 of the axially stacked setting along stator core 100,
Since axial direction, the seam of n-th layer 10 along stator core 100 are staggered with the n-th+m layers of seam 10 so that two neighboring point
Wherein one end in both ends relative to each other between block iron core 2 is formed with protrusion, the other end forms fluted, avoids adjacent two
A piecemeal iron core 2 misplaces along the axial direction of stator core 100, it is ensured that the integral rigidity of stator core 100 also avoids adjacent
Axial stitching error is generated between two piecemeal iron cores 2, effectively reduces the eddy-current loss of stator core 100.The application's determines
The eddy-current loss of sub- iron core 100 is in the punching section 11 only in same layer, and the eddy-current loss of traditional stator core not only exists
In punching section 11 in same layer, and also interlayer eddy-current loss so that the eddy-current loss of the stator core 100 of the application is remote
Less than the eddy-current loss of traditional stator core, and the eddy-current loss of the stator core 100 of the application and stator in the prior art
Iron core is that integrally-built eddy-current loss is substantially suitable, and the stator core 100 of the application is than above-mentioned integrally-built stator core
It is easy to process, be readily transported circulation, when the stator core 100 of the application be applied to motor when, can effectively promote the effect of motor
Rate；Using the stator core 100 of the application motor radial vibration relative to using traditional stator core motor diameter
Reduce 50% or more to vibration, and uses the radial vibration of the motor of the stator core 100 of the application and adopt in the prior art
Radial vibration difference with the motor of overall structure stator core is little, it can be seen that, the stator core 100 of the application is with good
Good rigidity, can effectively weaken the vibration and noise of motor.
Wherein, protrusion can be by least one punching section of piecemeal iron core 2 one of in two neighboring piecemeal iron core 2
1 forms along the circumferential projection of stator core 100, and groove can be by another piecemeal iron core 2 in two neighboring piecemeal iron core 2
Multiple punching sections 11 between jointly limit formed, in the axial direction of stator core 100, the width of groove be greater than or equal to protrusion
Width, i.e., in the example of Fig. 6 and Fig. 7, X1 >=X2, Y1 >=Y2, and do not have between X1 and Y1 inevitable magnitude relationship, X2 with
Also magnitude relationship uninevitable between Y2, still can edge to ensure that stator core 100 is split into after multiple piecemeal iron cores 2
Original route is assembled into complete stator core 100, and steel plate 101 is avoided to exist with plate difference and cause piecemeal iron core 2 that can not be assembled into
Complete stator core 100.
It is connected by a rivet 100a between axial, the two neighboring punching section 11 of stator core 100, rivet 100a
With 11 punch forming simultaneously of corresponding punching section, and each punching section 11 includes along the radially connected yoke portion of stator core 100
111 and teeth portion 112, yoke portion 111 is located at the outside of teeth portion 112, and stator slot 110 is formed between two neighboring teeth portion 112；Work as stator
When iron core 100 is applied to stator 200, the winding of stator 100 is wrapped in teeth portion 112 and winding is located in stator slot 110.
Further, as shown in Fig. 3-Fig. 5 and Fig. 8-Figure 10, in a first direction, the width of 111 outer end of yoke portion be more than yoke
The width of 111 inner end of portion so that multiple piecemeal iron cores 2 can along the radial motion (for example, as shown in Figure 9) of stator core 100,
Stator core 100 is quickly split into multiple piecemeal iron cores 2, while in split process, between two neighboring piecemeal iron core 2
Movement will not interfere, realize the self-movement of each piecemeal iron core 2, and due in split process, multiple piecemeals
Iron core 2 is the radial motion along stator core 100 so that the action consistency of multiple piecemeal iron cores 2 is high, to conducive to automatic
Metaplasia is produced, and the operation of relevant automatic production equipment is convenient for, and is conducive to simplify the structure of the automated production equipment, is reduced equipment
Cost.Wherein, first direction is the circumferential direction of stator core 100, and first direction hangs down with the direction of the center line of corresponding teeth portion 112
Directly,
It, can be by 12 piecemeal iron cores 2 along the diameter of stator core 100 when multiple laminations 1 are assembled into stator core 100
To being displaced outwardly (for example, as shown in Figure 9), stator core 100 is quickly split；When each piecemeal iron core 2 completes coiling,
12 piecemeal iron cores 2 can moving radially inwardly (for example, as shown in Figure 9), stator iron is rapidly completed along stator core 100
The assembling again of core 100 so that stator core 200 is formed as firm entirety；Alternatively, when multiple laminations 1 are assembled into stator
It, can be by 12 piecemeal iron cores 2 along the circumferentially deploying of stator core 100 (for example, as shown in Figure 10) so that 12 when iron core 100
Multiple piecemeal iron cores 2 are linearly arranged in a piecemeal iron core 2, and the overlapping area between two neighboring piecemeal iron core 2 is more than at this time
0, that is to say, that be not completely independent between two neighboring piecemeal iron core 2, be not kept completely separate, but pass through two neighboring piecemeal
Overlap between iron core 2 realizes the axially position between two neighboring piecemeal iron core 2, to 2 coiling of piecemeal iron core
After the completion, it is advantageously implemented the accurate splicing of piecemeal iron core 2 so that piecemeal iron core 2 can ensure preferably along original route assembly
Consistency after the completion of stator core 100 assembly can carry out coiling by least one bobbin winder device to piecemeal iron core 2；
When each piecemeal iron core 2 completes coiling, 12 piecemeal iron cores 2 can (for example, as shown in Figure 10) assembled along original route, with
The assembling again of stator core 100 is rapidly completed so that stator core 200 is formed as firm entirety.
It specifically, as shown in figures 1 and 3, can edge on steel plate 101 firstly, it is necessary to be stamped and formed out multiple punching sections 11
Rectilinear direction is staggeredly stamped and formed out the first punching section 113 and the second punching section 114 successively from left to right, to complete multiple punching sections
11 blanking, while rivet 100a has been stamped and formed out in each punching section 11, by multiple 11 head and the tail of punching section set gradually with
It is spliced into the lamination 1 of closed circular；Then, the thickness direction by multiple laminations 1 along lamination 1 is cascading, can
With by applying certain pressure in the axial direction of multiple laminations 1 so that pass through between the punching section 11 of adjacent two layers lamination 1
One rivet 100a is connected, and is interlocked with the n-th+m layers of seam 10 due to axial direction, the seam of n-th layer 10 along stator core 100 and is set
It sets, wherein n, m are positive integer, and n, m meet n >=1, m >=1 respectively so that stator core 100 can form one and consolidate
Entirety.
The manufacturing method of stator core 100 according to the ... of the embodiment of the present invention, process is simple, convenient to carry out, effectively increases
The stock utilization of steel plate 101 reduces the material cost of stator core 100, while 100 stabilized structure of stator core, has
Good integral rigidity facilitates transport, circulates and take, and it is convenient that stator core 100 is split, while the piecemeal iron core after fractionation
2 have higher degree of freedom, facilitate manufacture, compatible flat electromagnetic wire winding；The eddy-current loss for reducing stator core 100, with
Conducive to the efficiency of promotion motor；The punching section 11 for avoiding different layers is easily detached from, and improves the whole rigid of stator core 100
Property, the transport of stator core 100 is facilitated, circulates and takes, effectively reduces the vibration and noise of motor, improves the suitable of motor
The property used.
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 (10)
1. a kind of manufacturing method of stator core, which is characterized in that the stator core includes multiple laminations, multiple iron
Along the axially stacked setting of the stator core, each iron chip type becomes cyclic structure and includes circumferentially head and the tail chip
The multiple punching sections set gradually form seam between the two neighboring punching section, along the stator core axial direction, n-th
The seam of layer is staggered with the n-th+m layers of the seam, wherein described n, m are positive integer, and described n, m distinguish
Meet n >=1, m >=1；
The manufacturing method includes the following steps：
Linearly multiple punching sections of punching press successively on the steel plate, and by multiple punching sections head and the tail set gradually with
It is spliced into the lamination；
By multiple laminations along the axially stacked setting of the lamination.
2. the manufacturing method of stator core according to claim 1, which is characterized in that each punching section includes along institute
The radially connected yoke portion and teeth portion of stator core is stated, stator slot is formed between the two neighboring teeth portion, on the steel plate
When the multiple punching sections of punching press, multiple punching sections include the first punching section group and the second punching section group, first punching
Segment group includes the multiple first punching sections being arranged along a straight line, and the second punching section group includes multiple second to be arranged along a straight line
Punching section, sets that there are one the second punching section, two neighboring second punchings between the two neighboring first punching section
It is set between section there are one the first punching section, and the teeth portion of the first punching section and the second punching section is described
Teeth portion is positioned opposite to each other.
3. the manufacturing method of stator core according to claim 1, which is characterized in that the two neighboring lamination passes through
Multiple rivets are connected.
4. the manufacturing method of stator core according to claim 1, which is characterized in that multiple rivet one-to-one correspondence are set
In multiple punching sections.
5. the manufacturing method of stator core according to claim 4, which is characterized in that the rivet and the corresponding punching
Segment punch forming simultaneously.
6. the manufacturing method of stator core according to claim 1, which is characterized in that along the stator core axial direction,
It is identical from the shape of the lamination of the lamination to the n-th+b layers of the n-th layer, wherein the b is positive integer, and
The b meets：b≥1.
7. the manufacturing method of stator core according to claim 6, which is characterized in that along the stator core axial direction,
It is identical from the shape of the punching section of the punching section to described n-th+b layers of the n-th layer.
8. the manufacturing method of stator core according to claim 1, which is characterized in that the minimum clearance of the seam is x,
The x meets：x≤0.02mm.
9. the manufacturing method of stator core according to claim 1, which is characterized in that each the thickness of the punching section is
T, the t meet：t≤0.5mm.
10. the manufacturing method of the stator core according to any one of claim 1-9, which is characterized in that the seam shape
As straightway.
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| CN201810551040.3A CN108667237A (en) | 2018-05-31 | 2018-05-31 | The manufacturing method of stator core |
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| CN201810551040.3A CN108667237A (en) | 2018-05-31 | 2018-05-31 | The manufacturing method of stator core |
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Family
ID=63774948
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| CN201810551040.3A Pending CN108667237A (en) | 2018-05-31 | 2018-05-31 | The manufacturing method of stator core |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347221A (en) * | 2018-12-13 | 2019-02-15 | 浙江特种电机股份有限公司 | A kind of overlapping linking stator core and preparation method |
| 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 |
| CN113300498A (en) * | 2021-05-17 | 2021-08-24 | 安徽威灵汽车部件有限公司 | Stator, motor, compressor, vehicle, and method for manufacturing stator |
| CN113472098A (en) * | 2020-03-31 | 2021-10-01 | 北京金风科创风电设备有限公司 | Split type iron core structure |
| CN114567130A (en) * | 2022-03-18 | 2022-05-31 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
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| CN113472098A (en) * | 2020-03-31 | 2021-10-01 | 北京金风科创风电设备有限公司 | Split type iron core structure |
| CN113300498A (en) * | 2021-05-17 | 2021-08-24 | 安徽威灵汽车部件有限公司 | Stator, motor, compressor, vehicle, and method for manufacturing stator |
| CN114567130A (en) * | 2022-03-18 | 2022-05-31 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
| CN114567130B (en) * | 2022-03-18 | 2024-04-26 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
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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. |
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Application publication date: 20181016 |