CN113595271B - Stator core and assembled motor stator - Google Patents
Stator core and assembled motor stator Download PDFInfo
- Publication number
- CN113595271B CN113595271B CN202110906882.8A CN202110906882A CN113595271B CN 113595271 B CN113595271 B CN 113595271B CN 202110906882 A CN202110906882 A CN 202110906882A CN 113595271 B CN113595271 B CN 113595271B
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- stator
- tooth
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- framework
- iron core
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
Abstract
The invention discloses a stator core and an assembled motor stator, which comprise core teeth (1) buckled and connected with a stator framework, wherein one end of each core tooth (1) is provided with a first tooth top (2), and the other end of each core tooth (1) is provided with a second tooth top (3). According to the invention, the stator core is arranged into the single core tooth structure, so that the stator core can be fastened and fixed on the stator framework during assembly, thereby omitting an annular connecting structure among tooth bodies, and greatly reducing the weight of the motor stator and the required raw material cost; the iron core teeth can also be arranged side by side in a staggered manner in the stamping and layout process, so that the utilization rate of stamping materials is effectively improved, and the generation of waste materials is reduced. The stator framework structure is limited through matching, so that the connection stability of the stator framework to the stator core can be improved, the rigidity of the motor stator is guaranteed, and the looseness of the stator core is avoided.
Description
Technical Field
The invention relates to a motor, in particular to a stator core and an assembled motor stator.
Background
At present, a conventional stator core is of an annular structure, a plurality of tooth bodies are distributed on the stator core in an annular mode, and the outside of each tooth body can be coated through insulating paper or a stator framework to form stator teeth for winding of a stator winding. However, this motor stator structure is not only heavy in weight, but also requires a relatively large amount of metal material, thereby increasing the raw material cost of the stator core. On the other hand, the conventional stator core generally adopts a stamping forming process, but the stator core has an annular structure, so that the consumption of the core material is increased in the stamping process, a lot of waste materials are generated, the material utilization rate is low, and the raw material cost is further increased. Therefore, the existing stator core has the problems of heavy weight, low material utilization rate and high raw material cost.
Disclosure of Invention
The invention aims to provide a stator core and a spliced motor stator. The stator core structure can effectively reduce the weight and the raw material cost of the stator core and improve the material utilization rate of the stator core.
The technical scheme of the invention is as follows: a stator core comprises a core tooth, wherein a first tooth top is arranged at one end of the core tooth, and a second tooth top is arranged at the other end of the core tooth.
In the foregoing stator core, the core teeth, the first tooth tops and the second tooth tops are connected to each other in an i-shape.
In an aforementioned stator core, the first tooth top, the second tooth top, and the core tooth are integrally formed, or the core tooth, the first tooth top, and the second tooth top are all split structures, and the core tooth, the first tooth top, and the second tooth top are connected to each other.
In the foregoing stator core, two ends of the core teeth are respectively connected to the first tooth crest and the second tooth crest in a snap-fit manner.
In an aforementioned stator core, a first fastening surface is disposed at a side of the first tooth top close to the core teeth, a second fastening surface is disposed at a side of the second tooth top close to the core teeth, and the first fastening surface and the second fastening surface are symmetrically disposed at left and right sides of the core teeth.
Pin-connected panel motor stator, this pin-connected panel motor stator include aforementioned stator core, a plurality of stator core are through articulamentum interconnect.
In the assembled motor stator, the connecting layer is a plastic-coated layer.
Among the aforementioned pin-connected panel motor stator, the articulamentum includes stator skeleton, and stator skeleton is including dismantling last stator skeleton and the lower stator skeleton of connection, goes up stator skeleton and forms the lock chamber of connecting stator core down between the stator skeleton, stator core's lateral wall and lock chamber are laminated each other all around.
In the aforementioned pin-connected panel motor stator, go up stator framework and all be equipped with first step groove and the second step groove that is located lock chamber both ends down on the stator framework, stator core's one end extends to the lock chamber outside and laminates each other with first step groove, stator core's the other end extends to the lock chamber outside and laminates each other with second step groove.
In the assembled motor stator, the upper stator framework and the lower stator framework are respectively provided with the plugboard and the slot which are positioned outside the stator core, and the upper stator framework and the lower stator framework are mutually buckled through the plugboard and the slot.
In the assembled motor stator, the outer part of the stator framework is provided with a plastic coating layer.
Compared with the prior art, the invention has the following characteristics:
(1) according to the stator core structure, the iron core teeth, the first tooth tops and the second tooth tops are matched, so that the iron core teeth can be fastened and fixed on the connecting layer during assembly, the iron core teeth are connected and fixed by the connecting layer, compared with the existing stator core structure, an annular connecting structure among tooth bodies can be omitted, and further the weight of the stator core and the required raw material cost are greatly reduced;
(2) the stator iron core with the original annular structure is split into the independent iron core tooth structures, so that the iron core teeth can be arranged more tightly when stamping and stock layout are carried out, waste materials generated in the stamping process are reduced, the material utilization rate is improved, and the raw material cost is further reduced; the first tooth top and the second tooth top are connected with the iron core teeth in a buckled mode, so that the first tooth top and the second tooth top can be respectively stamped during machining and are connected with each other after stamping forming, the distance between stamping parts during stock layout is further shortened, and stamping waste is reduced;
(3) on the basis, the connecting layer for connecting the iron core teeth is further optimized, and the stator framework or the plastic-coated layer is arranged, so that the iron core teeth can be clamped when being installed, the fixing effect is realized, the iron core teeth are prevented from moving after being installed, and the connecting stability and the positioning precision of the iron core teeth are improved;
(4) through the matching connection structure arranged on the stator framework and the plastic coating layer, on one hand, the rigidity of the motor stator after molding can be improved, and on the other hand, the relative position between the iron core teeth and the stator framework can be limited, so that the roundness and the concentricity of the iron core teeth after molding are improved;
therefore, the invention can effectively reduce the weight and the raw material cost of the stator core and improve the material utilization rate of the stator core.
Drawings
Fig. 1 is a schematic view of a stator core structure;
fig. 2 is a structural view of the stator core from another direction;
fig. 3 is a drawing of a punched pattern of a stator core;
FIG. 4 is a schematic structural view of a stator of the motor;
FIG. 5 is a schematic structural diagram of the motor stator in example 1 and example 4 after the plastic coating layer is removed;
FIG. 6 is a partial block diagram of the upper stator frame;
FIG. 7 is a partial block diagram of the lower stator frame;
FIG. 8 is a schematic view of the stator core and fastening cavity connection;
fig. 9 is a connection structure view of the stator core and the stator frame at the inner side;
fig. 10 is a schematic view of the structure of stator cores in embodiment 2 and embodiment 4.
The symbols in the drawings are: 1-iron core teeth, 2-first tooth tops, 3-second tooth tops, 5-upper stator frameworks, 6-lower stator frameworks, 7-buckling cavities, 8-first step grooves, 9-second step grooves, 10-plastic coating layers, 201-first buckling surfaces, 301-second buckling surfaces, 501-plug boards and 601-inserting grooves.
Detailed Description
The invention is further described with reference to the following figures and examples, which are not to be construed as limiting the invention.
Example 1. A stator core is formed as shown in figures 1-2 and comprises core teeth 1, wherein one end of each core tooth 1 is provided with a first tooth crest 2, and the other end of each core tooth 1 is provided with a second tooth crest 3.
The iron core teeth 1, the first tooth tops 2 and the second tooth tops 3 are connected with each other in an I shape.
The first tooth top 2, the second tooth top 3 and the iron core teeth 1 are integrally formed.
The first tooth crest 2 is provided with a first buckling surface 201 on one side close to the iron core tooth 1, the second tooth crest 3 is provided with a second buckling surface 301 on one side close to the iron core tooth 1, and the first buckling surface 201 and the second buckling surface 301 are symmetrically arranged on the left side and the right side of the iron core tooth 1.
The width of the first tooth top 2 is greater than that of the second tooth top 3, and the width of the second tooth top 3 is greater than the sum of the widths of the first fastening surfaces 201 on both sides.
The assembled motor stator is shown in figures 4-9 and comprises a plurality of stator cores which are circumferentially arranged and connected with each other through a connecting layer.
The articulamentum includes stator framework, and stator framework is including dismantling last stator framework 5 and lower stator framework 6 of connection, goes up stator framework 5 and forms the lock chamber 7 of connecting stator core down between stator framework 6, stator core's lateral wall and lock chamber are laminated each other all around.
Go up stator skeleton 5 and all be equipped with first step groove 8 and second step groove 9 that are located 7 both ends in lock chamber on the stator skeleton 6 down, stator core's one end extends to the 7 outsides in lock chamber and laminates each other with first step groove 8 through first lock face 201, stator core's the other end extends to the 7 outsides in lock chamber and laminates each other with second step groove 9 through second lock face 301, and the lateral wall in first step groove 8 and second step groove 9 is laminated each other with the lateral wall of first addendum 2 and second addendum 3 respectively.
And the upper stator framework 5 and the lower stator framework 6 are respectively provided with an inserting plate 501 and an inserting groove 601 which are positioned outside the stator core, and the upper stator framework 5 and the lower stator framework 6 are mutually buckled through the inserting plate 501 and the inserting groove 601.
The working principle of the invention is as follows: when the stator cores are punched and arranged in a sample, the stator cores can be arranged side by side in a head-to-tail reversing and up-and-down staggering mode in the figure 3, so that the core teeth 1 and the second tooth tops 3 of the middle stator core can be arranged at the gap between the core teeth 1 and the second tooth tops 3 of the stator cores on two sides in an inserting mode, the distance between the adjacent stator cores is effectively shortened, the utilization rate of punching materials is improved, the generation of waste materials is reduced, and the raw material cost of the stator cores is reduced.
Stator core when the equipment, earlier with stator core lock on the lock chamber 7 of last stator skeleton 5, then will be stator skeleton 6 down through the cooperation of picture peg 501 and slot 601 and the mutual lock of last stator skeleton 5 for lock chamber 7 can carry on spacingly to stator core after the shaping. Through the cooperation of first step groove 8 and second step groove 9, can also carry on spacingly to stator core's both ends to effectively improve the connection stability to stator core, prevent stator core's radial float.
After the stator framework is buckled and molded, plastic coating is carried out on the outer part of the stator framework, and the stator iron core, the upper stator framework 5 and the lower stator framework 6 can be fixed firmly through the plastic coating layer 10, so that the looseness among all components is avoided, and the integral rigidity of the motor stator is improved; meanwhile, the plastic-coated layer 10 can limit the radial position of the stator core in the plastic-coated process, so that the roundness and the concentricity of the stator core after plastic coating are improved.
Example 2. A stator core is composed of core teeth 1, a first tooth top 2 arranged at one end of each core tooth 1, and a second tooth top 3 arranged at the other end of each core tooth 1, as shown in figure 10.
The iron core teeth 1, the first tooth tops 2 and the second tooth tops 3 are connected with each other in an I shape.
The two ends of the iron core teeth 1 are connected with the first tooth tops 2 and the second tooth tops 3 through concave-convex buckling structures respectively.
The first tooth top 2 is provided with a first buckling surface 201 at one side close to the iron core tooth 1, the second tooth top 3 is provided with a second buckling surface 301 at one side close to the iron core tooth 1, and the first buckling surface 201 and the second buckling surface 301 are symmetrically arranged at the left side and the right side of the iron core tooth 1.
The assembled motor stator is shown in fig. 4, and comprises a plurality of stator cores which are circumferentially arranged and connected with each other through a connecting layer.
The connecting layer is made of plastic materials or thermosetting materials, and the stator cores are connected into a whole through integral plastic coating to form a plastic coating layer 10.
This embodiment is through connecting iron core tooth 1 with first addendum 2 and 3 locks in second addendum for first addendum 2, second addendum 3 and iron core tooth 1 can be respectively stamping forming alone, thereby further improve the compactness of arranging of each stamping workpiece, improve the utilization ratio to stamping material and reduce the production of punching press waste material. The plastic coating layer 10 is formed by directly injecting and molding the outside of the stator core, so that the processing efficiency of the motor stator can be further improved compared with a stator framework structure, and the processing cost is reduced.
Example 3. A stator core is formed as shown in figures 1-2 and comprises core teeth 1, wherein one end of each core tooth 1 is provided with a first tooth crest 2, and the other end of each core tooth 1 is provided with a second tooth crest 3.
The iron core teeth 1, the first tooth tops 2 and the second tooth tops 3 are connected with each other in an I shape.
The first tooth top 2, the second tooth top 3 and the iron core teeth 1 are integrally formed.
The first tooth top 2 is provided with a first buckling surface 201 at one side close to the iron core tooth 1, the second tooth top 3 is provided with a second buckling surface 301 at one side close to the iron core tooth 1, and the first buckling surface 201 and the second buckling surface 301 are symmetrically arranged at the left side and the right side of the iron core tooth 1.
The width of the first tooth top 2 is greater than that of the second tooth top 3, and the width of the second tooth top 3 is greater than the sum of the widths of the first fastening surfaces 201 on both sides.
The assembled motor stator is shown in fig. 4, and comprises a plurality of stator cores which are circumferentially arranged and connected with each other through a connecting layer.
The connecting layer is made of plastic materials or thermosetting materials, and the stator cores are connected into a whole through integral plastic coating to form a plastic coating layer 10.
Example 4. A stator core is composed of core teeth 1, a first tooth top 2 arranged at one end of each core tooth 1, and a second tooth top 3 arranged at the other end of each core tooth 1, as shown in figure 10.
The iron core teeth 1, the first tooth tops 2 and the second tooth tops 3 are connected with each other in an I shape.
The two ends of the iron core teeth 1 are respectively connected with the first tooth tops 2 and the second tooth tops 3 through concave-convex buckling structures.
The first tooth crest 2 is provided with a first buckling surface 201 on one side close to the iron core tooth 1, the second tooth crest 3 is provided with a second buckling surface 301 on one side close to the iron core tooth 1, and the first buckling surface 201 and the second buckling surface 301 are symmetrically arranged on the left side and the right side of the iron core tooth 1.
The assembled motor stator is shown in figures 4-9 and comprises a plurality of stator cores which are circumferentially arranged and connected with each other through a connecting layer.
The articulamentum includes stator framework, and stator framework is including dismantling last stator framework 5 and lower stator framework 6 of connection, goes up stator framework 5 and forms the lock chamber 7 of connecting stator core down between stator framework 6, stator core's lateral wall and lock chamber are laminated each other all around.
Go up stator skeleton 5 and all be equipped with first step groove 8 and second step groove 9 that are located 7 both ends in lock chamber on the stator skeleton 6 down, stator core's one end extends to the 7 outsides in lock chamber and laminates each other with first step groove 8 through first lock face 201, stator core's the other end extends to the 7 outsides in lock chamber and laminates each other with second step groove 9 through second lock face 301, and the lateral wall in first step groove 8 and second step groove 9 is laminated each other with the lateral wall of first addendum 2 and second addendum 3 respectively.
An inserting plate 501 and a slot 601 which are positioned on the outer side of the stator core are respectively arranged on the upper stator framework 5 and the lower stator framework 6, and the upper stator framework 5 and the lower stator framework 6 are mutually buckled through the inserting plate 501 and the slot 601.
Claims (4)
1. Pin-connected panel motor stator, its characterized in that: the stator comprises a plurality of stator cores which are connected with each other through a connecting layer; the connecting layer comprises a stator framework, the stator framework comprises an upper stator framework (5) and a lower stator framework (6) which are detachably connected, a buckling cavity (7) for connecting a stator core is formed between the upper stator framework (5) and the lower stator framework (6), and the peripheral side walls of the stator core are mutually attached to the buckling cavity;
the upper stator framework (5) and the lower stator framework (6) are respectively provided with a first step groove (8) and a second step groove (9) which are positioned at two ends of the buckling cavity (7), one end of the stator core extends to the outer side of the buckling cavity (7) and is mutually attached to the first step groove (8), and the other end of the stator core extends to the outer side of the buckling cavity (7) and is mutually attached to the second step groove (9);
a plastic coating layer (10) is arranged outside the stator framework;
the stator core comprises core teeth (1), one end of each core tooth (1) is provided with a first tooth top (2), and the other end of each core tooth (1) is provided with a second tooth top (3);
the iron core teeth (1), the first tooth tops (2) and the second tooth tops (3) are connected with each other in an I-shaped manner.
2. The assembled motor stator of claim 1, wherein: first addendum (2), second addendum (3) and iron core tooth (1) integrated into one piece, perhaps iron core tooth (1), first addendum (2) and second addendum (3) are split type structure, interconnect between iron core tooth (1), first addendum (2) and second addendum (3).
3. The assembled motor stator according to claim 2, wherein: and two ends of the iron core teeth (1) are respectively buckled and connected with the first tooth tops (2) and the second tooth tops (3).
4. The assembled motor stator of claim 1, wherein: the first tooth top (2) is provided with a first buckling surface (201) on one side close to the iron core tooth (1), the second tooth top (3) is provided with a second buckling surface (301) on one side close to the iron core tooth (1), and the first buckling surface (201) and the second buckling surface (301) are symmetrically arranged on the left side and the right side of the iron core tooth (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110906882.8A CN113595271B (en) | 2021-08-09 | 2021-08-09 | Stator core and assembled motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110906882.8A CN113595271B (en) | 2021-08-09 | 2021-08-09 | Stator core and assembled motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113595271A CN113595271A (en) | 2021-11-02 |
| CN113595271B true CN113595271B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110906882.8A Active CN113595271B (en) | 2021-08-09 | 2021-08-09 | Stator core and assembled motor stator |
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| CN (1) | CN113595271B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358225C (en) * | 2002-06-26 | 2007-12-26 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| JP2010104160A (en) * | 2008-10-24 | 2010-05-06 | Panasonic Corp | Dual rotor motor and manufacturing method therefor |
| CN204012959U (en) * | 2014-07-24 | 2014-12-10 | 广东威灵电机制造有限公司 | Stator core and stator, magneto |
| KR101693686B1 (en) * | 2014-09-23 | 2017-01-09 | 주식회사 아모텍 | Stator and Motor having Stator thereof |
| CN207304178U (en) * | 2017-09-29 | 2018-05-01 | 广东威灵电机制造有限公司 | For double-rotor machine stator core and there is its double-rotor machine |
| CN215419769U (en) * | 2021-08-09 | 2022-01-04 | 湖州南洋电机有限公司 | Stator core for motor stator |
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2021
- 2021-08-09 CN CN202110906882.8A patent/CN113595271B/en active Active
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