CN109149801B - Stator core of motor and motor - Google Patents
Stator core of motor and motor Download PDFInfo
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- CN109149801B CN109149801B CN201811162784.2A CN201811162784A CN109149801B CN 109149801 B CN109149801 B CN 109149801B CN 201811162784 A CN201811162784 A CN 201811162784A CN 109149801 B CN109149801 B CN 109149801B
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- stator 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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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a stator core of a motor and the motor. Wherein, the stator core of motor is formed by two at least stator core lamella amalgamations, and every lamella stator core lamella includes iron core main part and insulation system, and insulation system reaches the extension structure that extends to the outside by thin wall structure including the parcel at iron core main part outlying thin wall structure, and extension structure divide into supporting part structure and amalgamation part structure, and supporting part structure is used for supporting stator core, and amalgamation part structure is used for amalgamation two adjacent lamella stator core lamellas. Compared with a self-splicing and self-supporting structure of the stator core, the scheme of the invention reduces the weight of the stator core, reduces the iron loss of the stator core and improves the performance of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a stator core of a motor and a motor comprising the stator core.
Background
The stator core of the existing motor is mostly of a full-circle structure, so that the stator structure is inconvenient to wind, time-consuming and low in efficiency. If the iron core is divided, the winding is respectively carried out, and the iron core is spliced into a whole circle after the winding is finished, so that the problem of inconvenience in winding can be well solved. However, in practice, the split structure and the core support structure are generally integrally punched with the stator core, which not only solves the problem of manufacturability, but also increases the weight and iron loss of the stator core.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
To this end, a first aspect of the present invention provides a stator core of an electric machine.
An object of a second aspect of the present invention is to provide an electric machine including the above stator core.
In order to achieve the above object, a first aspect of the present invention provides a stator core of an electric machine, where the stator core is formed by splicing at least two stator core segments, each stator core segment includes a core main body and an insulating structure, the insulating structure includes a thin-wall structure wrapped around the core main body and an extending structure extending outward from the thin-wall structure, the extending structure is divided into a supporting portion structure and a splicing portion structure, the supporting portion structure is used for supporting the stator core, and the splicing portion structure is used for splicing two adjacent stator core segments.
Compared with the stator core self-splicing and self-supporting structure in the prior art, the stator core of the motor provided by the technical scheme of the invention has the advantages that the weight of the stator core is reduced, the iron loss of the stator core is reduced, and the performance of the motor is improved; and this kind of stator core can improve stator core inter-chip cohesion and stator core structural damping to reduce the noise and the vibration of motor.
In addition, the stator core of the motor provided in the above technical solution of the present invention may further have the following additional technical features:
in the above technical solution, preferably, the insulation structure includes two split portion structures, two split portion structures are respectively disposed at two circumferential ends of the thin-walled structure, each split portion structure is provided with a protruding portion or a recessed portion, and two adjacent split portions are split between the stator core segments by matching of the protruding portion of one split portion structure with the recessed portion of the other split portion structure.
Above-mentioned scheme realizes the amalgamation through the cooperation of bellying and depressed part between two adjacent lamella stator core lamellas to need not just can accomplish stator core's amalgamation with the help of other instruments, reduced stator core's the assembly degree of difficulty, improved stator core's production efficiency.
In the above technical solution, preferably, one of the two split structures of each stator core segment is provided with the protruding portion, and the other is provided with the recessed portion.
Above-mentioned scheme is favorable to improving the structural uniformity of each lamella stator core lamella to be favorable to simplifying the manufacturing procedure of stator core lamella, improve stator core's machining efficiency, and make the connection between the adjacent stator core lamella of stator core more firm.
In the above technical solution, preferably, the iron core main body includes an iron core yoke portion and two sub-iron core tooth portions, two the sub-iron core tooth portions are located the inboard of iron core yoke portion and are located the circumference both ends of iron core yoke portion, two adjacent petals the two that contact after the stator core lamella amalgamates sub-iron core tooth portions constitute an iron core tooth.
Above-mentioned scheme is favorable to realizing the split back of multi-petal stator core lamella, and the iron core yoke portion of multi-petal stator core lamella constructs into the annular jointly to form a plurality of iron core tooth portions (or iron core tooth) along circumference interval arrangement in annular iron core yoke portion's inboard.
In the above technical solution, preferably, the two split structures are respectively opposite to the two sub-core tooth portions, and the split structure extends along a direction in which the sub-core tooth portion is far from the center.
Above-mentioned scheme, amalgamation portion structure is relative with sub-core tooth portion, is favorable to improving the structural strength of amalgamation portion structure to improve two adjacent lamella stator core lamella and utilize amalgamation portion structure to carry out the structural strength of amalgamation, and then improve stator core's bulk strength.
In the above technical solution, preferably, the core main body includes at least one core tooth portion, the core tooth portion is disposed on an inner side of the core yoke portion and located between two of the sub-core tooth portions, and the insulation structure includes at least one support portion structure that is opposite to the core tooth portion and extends in a direction in which the core tooth portion is away from the center.
According to the scheme, the supporting part structure is opposite to the iron core tooth part, so that the structural strength of the supporting part structure is improved, and the supporting strength of the supporting part structure to the whole stator iron core is improved; specifically, can set up the supporting part structure with each iron core tooth part one-to-one to guarantee the supporting part structure to whole stator core's support intensity, with can set up with partial iron core tooth part one-to-one's supporting part structure, with under the prerequisite of guaranteeing to support intensity, reduce the quantity of supporting part structure, thereby alleviate stator core's weight.
In the foregoing aspect, preferably, the number of the core tooth portions is multiple and the core tooth portions are arranged at intervals in the circumferential direction of the core yoke portion, and the insulation structure further includes at least one support portion structure that is combined with the split portion structure to form a composite structure.
Above-mentioned scheme merges supporting part structure and amalgamation portion structure and forms composite construction, can reduce the quantity of supporting part structure like this under the prerequisite of guaranteeing equal support intensity to further alleviate material weight, and then alleviate whole stator core's weight.
In the above technical solution, preferably, the support portion structure is provided with a positioning hole or a positioning protrusion.
Above-mentioned scheme, supporting part structure can design out locating hole structure or location protruding structure on it according to the user demand, undertakes the whole stator core effect of support in stator core.
In the above technical solution, preferably, the insulating structure is an injection molded body, and the thin-walled structure is formed with an injection molding process hole.
According to the scheme, the insulating structure is provided with regular and irregular hole structures (namely injection molding process holes), and the iron core main body is supported in the injection molding process.
An aspect of the second aspect of the present invention provides a motor, including a stator core of the motor according to any one of the above aspects.
The motor provided by the above technical scheme of the present invention has the beneficial effects of the stator core of the motor according to any one of the above technical schemes because the motor includes the stator core of the motor according to any one of the above technical schemes.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a core body according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an insulating structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a stator core lobe of one embodiment of the present invention;
fig. 4 is a schematic structural view of the stator core segment of the first embodiment of the present invention after the stator core segment is completely split;
fig. 5 is a schematic structural view of a stator core segment according to a second embodiment of the present invention before being split;
fig. 6 is a schematic structural view of a stator core segment according to a second embodiment of the present invention after the stator core segment is completely split.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
1 stator core lamella, 10 iron core main parts, 11 iron core yoke parts, 12 iron core tooth parts, 13 sub-iron core tooth parts, 20 insulation structures, 21 thin-wall structures, 211 injection molding process holes, 22 supporting part structures, 221 positioning holes, 23 splicing part structures, 231 convex parts, 232 concave parts and 24 composite structures.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A stator core of an electric machine and an electric machine according to some embodiments of the present invention are described below with reference to fig. 1 to 6.
As shown in fig. 1 to 6, according to some embodiments of the present invention, a stator core of an electric machine is provided, where the stator core is formed by splicing at least two stator core segments 1, each stator core segment 1 includes a core main body 10 and an insulating structure 20, the insulating structure 20 includes a thin-wall structure 21 wrapped around the core main body 10, and an extending structure extending outward from the thin-wall structure 21, the extending structure is divided into a supporting portion structure 22 and a split portion structure 23, the supporting portion structure 22 is used for supporting the stator core, and the split portion structure 23 is used for splitting two adjacent stator core segments 1.
In the stator core of the motor provided by the embodiment of the invention, the insulating structure 20 of the stator core not only plays a role of electrical insulation, but also plays a role of splicing and fastening each stator core segment 1 and supporting the whole stator core in the final assembly; and this kind of stator core can improve stator core inter-chip cohesion and stator core structural damping to reduce the noise and the vibration of motor.
In some embodiments of the present invention, as shown in fig. 2 to 6, the insulation structure 20 includes two split structure 23, the two split structures 23 are respectively disposed at two circumferential ends of the thin-wall structure 21, each split structure 23 is provided with a protrusion 231 or a recess 232, and the two stator core laminations 1 are split by the protrusion 231 of one split structure 23 and the recess 232 of the other split structure 23.
In the above embodiment, the two adjacent stator core segments 1 are spliced by matching the protruding portions 231 with the recessed portions 232, so that the stator core can be spliced without other tools, the assembly difficulty of the stator core is reduced, and the production efficiency of the stator core is improved.
Preferably, as shown in fig. 2 to 6, one of the two split structure 23 of each stator core segment 1 is provided with a convex portion 231 and the other is provided with a concave portion 232.
The embodiment is favorable for improving the structural consistency of the stator core segments 1 of each segment, thereby being favorable for simplifying the processing procedure of the stator core segments 1, improving the processing efficiency of the stator core and ensuring that the connection between the adjacent stator core segments 1 of the stator core is firmer.
Specifically, the convex portions 231 and the concave portions 232 can be tightly embedded, the two splicing portion structures 23 can be designed to be in clearance, transition or interference fit according to actual use conditions, polymer adhesive can be filled in the splicing clearances, the splicing positions have 0 or 1 translational degree of freedom after splicing, and the stator core structure plays a role in splicing each valve core.
Further, as shown in fig. 1, the core body 10 includes a core yoke 11 and two sub core teeth 13, the two sub core teeth 13 are disposed on the inner side of the core yoke 11 and located at two circumferential ends of the core yoke 11, and the two sub core teeth 13 that are in contact with each other after the two adjacent stator core segments 1 are assembled form one core tooth.
Preferably, as shown in fig. 3, two split structures 23 are respectively opposite to the two sub-core teeth 13, and the split structures 23 extend in a direction in which the sub-core teeth 13 are away from the center.
In the above embodiment, after the multi-petal stator core segments 1 are spliced, the core yoke portions 11 of the multi-petal stator core segments 1 are jointly configured into an annular shape, and a plurality of core tooth portions 12 (or core teeth) arranged at intervals in the circumferential direction are formed on the inner side of the annular core yoke portion 11; the split structure 23 is opposite to the sub-core tooth portion 13, which is beneficial to improving the structural strength of the split structure 23, so that the structural strength of the adjacent two stator core segments 1 spliced by the split structure 23 is improved, and the overall strength of the stator core is further improved.
Further, as shown in fig. 3 to 6, the core body 10 includes at least one core tooth 12, the core tooth 12 is disposed inside the core yoke 11 and between two sub-core teeth 13, and the insulating structure 20 includes at least one supporting portion 22 opposite to the core tooth 12 and extending along a direction in which the core tooth 12 is far from the center.
In the above embodiment, the supporting portion structure 22 is opposite to the core tooth portion 12, which is beneficial to improving the structural strength of the supporting portion structure 22, so as to improve the supporting strength of the supporting portion structure 22 on the whole stator core; specifically, the supporting portion structures 22 one-to-one corresponding to each core tooth portion 12 may be provided to ensure the supporting strength of the supporting portion structures 22 to the entire stator core, and the supporting portion structures 22 one-to-one corresponding to some core tooth portions 12 may be provided to reduce the number of the supporting portion structures 22 on the premise of ensuring the supporting strength, thereby reducing the weight of the stator core.
Further, as shown in fig. 5 and 6, the number of the core teeth 12 is plural and the core teeth are arranged at intervals along the circumferential direction of the core yoke 11, and the insulation structure 20 further includes at least one support portion structure 22 combined with the split portion structure 23 to form a composite structure 24.
In the above embodiment, the support portion structure 22 and the split portion structure 23 are combined to form the composite structure 24, so that the number of the support portion structures 22 can be reduced on the premise of ensuring the same support strength, thereby further reducing the weight of the material and further reducing the weight of the whole stator core.
In any of the above embodiments, preferably, the supporting portion structure 22 may have a positioning hole 221 structure or a positioning protrusion structure designed thereon according to the use requirement, and the positioning hole 221 is disposed on the supporting portion structure 22, as shown in fig. 2 to 6.
The first embodiment is as follows:
as shown in fig. 1 to 4, the stator core is formed by splicing two stator core segments 1, the number of the core teeth 12 of each stator core segment 1 is two, and the two stator core segments 1 are arranged at intervals along the circumferential direction of the core yoke 11, the insulation structure 20 of each stator core segment 1 includes two split structure 23, the two split structures 23 are respectively arranged at two circumferential ends of the thin-wall structure 21, one of the split structures 23 is provided with a protruding portion 231, the other of the split structures 23 is provided with a recessed portion 232, and the two adjacent stator core segments 1 are spliced by matching the protruding portion 231 of one of the split structures 23 with the recessed portion 232 of the other of the split structures 23; the insulation structure 20 of each stator core segment 1 further includes two support structures 22, the two support structures 22 are respectively opposite to the two core teeth 12 and extend along the direction of the core teeth 12 away from the center, and each support structure 22 is provided with a positioning hole 221.
Example two:
as shown in fig. 5 and 6, the stator core is formed by splicing two stator core segments 1, the number of the core teeth 12 of each stator core segment 1 is two, and the two stator core segments 1 are arranged at intervals along the circumferential direction of the core yoke 11, the insulation structure 20 of each stator core segment 1 comprises two splicing structure 23, the two splicing structure 23 are respectively arranged at two circumferential ends of the thin-wall structure 21, one of the splicing structure 23 is provided with a protruding portion 231, the other of the splicing structure 23 is provided with a recessed portion 232, and the splicing between two adjacent stator core segments 1 is realized by the matching of the protruding portion 231 of one of the splicing structure 23 and the recessed portion 232 of the other of the splicing structure 23; the insulation structure 20 of each stator core segment 1 further includes two support structures 22, wherein one support structure 22 is opposite to one of the two core teeth 12 and extends along the direction of the core tooth 12 opposite to the support structure 22 away from the center, and the support structure 22 is provided with a positioning hole 221; the other support structure is combined with one of the split structures 23 to form a composite structure 24.
Specifically, in the two composite structures 24 which are spliced together, a first positioning hole which is smaller than a semicircle is arranged on one half of the composite structures 24, a second positioning hole which is larger than the semicircle is arranged on the other half of the composite structures 24, and the two half composite structures 24 are spliced together, so that the first positioning hole and the second positioning hole are spliced into a whole circle positioning hole 221; a convex part 231 is arranged on one half of the composite structure 24, a concave part 232 is arranged on the other half of the composite structure 24, and the two halves of the composite structure 24 are spliced, so that the convex part 231 and the concave part 232 are matched to realize the splicing of the two stator core segments 1; that is, in the second embodiment, the two support structures 22 and the one split structure 23 of the two stator core segments 1 in the first embodiment are combined to form the composite structure 24, so that the number of the split structures 23 or the support structures 22 is reduced, the weight of the material is reduced, and the weight of the stator core is reduced.
Preferably, as shown in fig. 3 and 4, the insulating structure 20 is an injection molded body, and the thin-walled structure 21 is formed with an injection molded hole 211.
In the above embodiment, the insulating structure 20 has a regular and irregular hole structure (i.e., the injection molding holes 211) and plays a role of supporting the core body 10 during the injection molding process.
Embodiments of a second aspect of the invention provide an electrical machine comprising a stator core of an electrical machine as in any of the embodiments described above.
The motor provided by the above embodiment of the present invention includes the stator core of the motor according to any of the above embodiments, so that the motor has the beneficial effects of the stator core of the motor according to any of the above embodiments, and details are not repeated herein.
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, e.g., "connected" may be a fixed connection, a detachable connection, an integral connection, or an electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A stator core of a motor, characterized in that,
the stator core is formed by splicing at least two stator core segments, each stator core segment comprises a core main body and an insulation structure, the insulation structure comprises a thin-wall structure wrapped on the periphery of the core main body and an extension structure extending outwards from the thin-wall structure, the extension structure is divided into a supporting part structure and a splicing part structure, the supporting part structure is used for supporting the stator core, and the splicing part structure is used for splicing two adjacent stator core segments; the iron core main body comprises at least one iron core tooth part, and the insulation structure comprises at least one supporting part structure which is opposite to the iron core tooth part and extends along the direction of the iron core tooth part far away from the center;
the iron core main body comprises an iron core yoke part and two sub iron core tooth parts, the two sub iron core tooth parts are arranged on the inner side of the iron core yoke part and are positioned at two circumferential ends of the iron core yoke part, and two adjacent stator iron core segments are spliced and then contacted with each other to form an iron core tooth; the two splicing part structures are respectively opposite to the two sub iron core tooth parts, and the splicing part structures extend along the direction of the sub iron core tooth parts away from the center.
2. The stator core for an electric machine according to claim 1,
the insulation system comprises a stator core, an insulation structure and a stator core, wherein the insulation structure comprises two splicing part structures, the two splicing part structures are arranged at the two circumferential ends of the thin-wall structure, each splicing part structure is provided with a protruding part or a depressed part, and two adjacent petals are arranged between the stator core petals through one of the splicing part structures, the protruding parts and the other of the splicing part structures are spliced through the matching of the depressed parts.
3. The stator core for an electric machine according to claim 2,
and one of the two splicing part structures of each stator core petal is provided with the convex part, and the other is provided with the concave part.
4. The stator core for an electric machine according to claim 1,
the iron core tooth part is arranged on the inner side of the iron core yoke part and is positioned between the two sub-iron core tooth parts.
5. The stator core for an electric machine according to claim 4,
the quantity of iron core tooth portion is a plurality of and follows the circumference interval setting of iron core yoke portion, insulation system still include at least one with amalgamation portion structure merges and forms composite construction the supporting part structure.
6. The stator core of an electric machine according to any one of claims 1 to 5,
the supporting part structure is provided with a positioning hole or a positioning bulge.
7. The stator core of an electric machine according to any one of claims 1 to 5,
the insulation structure is an injection molding body, and injection molding process holes are formed in the thin-wall structure.
8. An electric machine comprising a stator core of an electric machine according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811162784.2A CN109149801B (en) | 2018-09-30 | 2018-09-30 | Stator core of motor and motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811162784.2A CN109149801B (en) | 2018-09-30 | 2018-09-30 | Stator core of motor and motor |
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| CN109149801B true CN109149801B (en) | 2021-07-06 |
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| CN114598048A (en) * | 2022-03-21 | 2022-06-07 | 珠海格力电器股份有限公司 | Stator module, permanent magnet synchronous motor, piston compressor and refrigerator |
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| CN104854778A (en) * | 2012-12-21 | 2015-08-19 | 罗伯特·博世有限公司 | Electric machine with a stator and a rotor |
| CN205791880U (en) * | 2016-06-15 | 2016-12-07 | 珠海凯邦电机制造有限公司 | Electrical machine insulation skeleton, stator structure and plastic packaging motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ES2307249T3 (en) * | 2002-12-10 | 2008-11-16 | Lg Electronics Inc. | DRUM TYPE WASHING MACHINE. |
| CN201450371U (en) * | 2009-04-29 | 2010-05-05 | 中山大洋电机股份有限公司 | Stator structure of three-phase motor |
| JP2014014196A (en) * | 2010-12-29 | 2014-01-23 | Nippon Densan Corp | Armature, insulator, and motor |
| CN105207387B (en) * | 2015-09-02 | 2018-06-26 | 广东威灵电机制造有限公司 | Plastic packaging coil pipe motor |
| CN105449887B (en) * | 2015-12-24 | 2018-11-30 | 珠海格力电器股份有限公司 | A kind of motor stator structure and compressor |
| CN206595778U (en) * | 2017-03-31 | 2017-10-27 | 广东威灵电机制造有限公司 | The stator core and motor of motor |
| CN107516951A (en) * | 2017-09-11 | 2017-12-26 | 珠海凯邦电机制造有限公司 | Stator module and there is its motor |
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| CN104854778A (en) * | 2012-12-21 | 2015-08-19 | 罗伯特·博世有限公司 | Electric machine with a stator and a rotor |
| CN205791880U (en) * | 2016-06-15 | 2016-12-07 | 珠海凯邦电机制造有限公司 | Electrical machine insulation skeleton, stator structure and plastic packaging motor |
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