CN113746223A - Stator core, motor stator and motor - Google Patents
Stator core, motor stator and motor Download PDFInfo
- Publication number
- CN113746223A CN113746223A CN202110950927.1A CN202110950927A CN113746223A CN 113746223 A CN113746223 A CN 113746223A CN 202110950927 A CN202110950927 A CN 202110950927A CN 113746223 A CN113746223 A CN 113746223A
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- Prior art keywords
- stator
- sliding
- units
- unit
- sliding groove
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- 238000004080 punching Methods 0.000 claims abstract description 24
- 238000003475 lamination Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 abstract description 32
- 239000000463 material Substances 0.000 abstract description 4
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- 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
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- 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
Abstract
The invention provides a stator core, a motor stator and a motor, wherein the stator core comprises a plurality of stator units, two ends of an outer yoke part of each stator unit are provided with sliding pieces or sliding grooves, and the sliding pieces of one stator unit are matched with the sliding grooves of the other stator unit to realize the sliding connection of the two adjacent stator units; one of the two adjacent stator units comprises a first stator punching sheet, and the other stator unit comprises a second stator punching sheet; the first stator punching sheet is provided with sliding pieces at two ends of the outer yoke part, and the second stator punching sheet is provided with sliding grooves at two ends of the outer yoke part; the sliding piece extends along the axial direction, the sliding groove extends along the circumferential direction or the radial direction, the sliding piece slides along the sliding groove, the distance between the stator units is increased when the wire is wound, the rotation angle between two adjacent stator units is increased, the stator units are prevented from interfering the winding equipment, and the material utilization rate and the winding efficiency are improved.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a stator core, a motor stator and a motor.
Background
The motor comprises a stator and a rotor, wherein the stator comprises a stator iron core and a winding; in the existing motor, a stator core is designed into a chain structure, and two adjacent stator units can rotate mutually; when winding is wound, the stator core is unfolded, each stator unit is wound, and then the stator core is surrounded into a circle, so that a stator is formed; however, because the distance between two adjacent stator units is small and the rotation angle is limited, during winding, the stator units can interfere with winding equipment, so that the material utilization rate and the winding efficiency are low, the winding speed is low, and the assembly efficiency of the motor is further influenced.
Disclosure of Invention
In view of the above, the invention provides a stator core, a motor stator and a motor, so as to solve the problems in the prior art that the rotation angle of two adjacent stator units is limited, the winding speed is slow, the winding efficiency is low, and the like.
The invention provides a stator core, which comprises a plurality of stator units, wherein each stator unit comprises an outer yoke part; a sliding piece or a sliding groove is formed at one end of the outer yoke part along the circumferential direction of the stator unit, and correspondingly, a sliding groove or a sliding piece is formed at the other end of the outer yoke part along the circumferential direction of the stator unit;
the sliding piece of one stator unit is matched with the sliding groove of the other stator unit to realize the sliding connection of the two adjacent stator units.
Further optionally, each stator unit comprises a plurality of stator laminations stacked together; and each stator punching sheet is provided with a sliding piece and a sliding groove at two ends of the outer yoke part respectively.
Further optionally, in two adjacent stator units, one stator unit includes a plurality of first stator laminations stacked together, and the other stator unit includes a plurality of second stator laminations stacked together; the first stator punching sheet is arranged at two ends of the outer yoke portion and is provided with a sliding piece, and the second stator punching sheet is arranged at two ends of the outer yoke portion and is provided with a sliding groove.
Further alternatively, the sliding member may extend in an axial direction of the stator unit, the sliding member may slide along the sliding groove, and the sliding member may rotate in the sliding groove around the axial direction of the sliding member.
Further optionally, the extending direction of the sliding groove satisfies: the sliding piece slides along the sliding groove, and the larger the distance between two adjacent stator units is, the larger the rotation angle of one stator unit relative to the other stator unit can be.
Further optionally, a circumferential component of the sliding slot extending in a circumferential direction of the stator unit; the sliding piece slides along the sliding groove, so that two adjacent stator units are far away along the circumferential direction of the stator units.
Further optionally, a radial component of the sliding slot extending in a radial direction of the stator unit; the sliding piece slides along the sliding groove to enable the adjacent two stator units to be far away along the radial direction of the stator units.
Further optionally, in two adjacent stator units, the distance between two adjacent outer yoke parts is K, wherein K is more than or equal to 0.2mm and less than or equal to 10 mm.
The invention also provides a motor stator which comprises the stator core.
The invention also provides a motor which comprises the motor stator.
The invention provides a stator core, which comprises a plurality of stator units, wherein sliding parts or sliding grooves are formed at two ends of an outer yoke part of each stator unit, and the sliding parts of one stator unit are matched with the sliding grooves of the other stator unit to realize the sliding connection of the two adjacent stator units; one of the two adjacent stator units comprises a plurality of first stator punching sheets, and the other stator unit comprises a plurality of second stator punching sheets; the first stator punching sheet is provided with sliding pieces at two ends of the outer yoke part, and the second stator punching sheet is provided with sliding grooves at two ends of the outer yoke part; the axial extension of stator unit is followed to the slider, the sliding tray extends along stator unit's circumference or radial direction, the slider can be followed the sliding tray and slided, interval between the adjacent stator unit when having increased the wire winding, the slider is at the sliding tray internal rotation, and then has increased the gyration angle between two adjacent stator units, stator unit interference spooling equipment has been avoided, material utilization rate has been improved, wire winding speed and wire winding efficiency, the limited wire-wound problem of influence of chain structure's stator core gyration angle has been solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1a, 1b and 1c are schematic structural views of an embodiment of a stator core provided by the present invention;
fig. 2a is a schematic structural diagram of an embodiment of the present invention when two adjacent stator units are close to each other;
FIG. 2b is a schematic structural diagram of an embodiment of the present invention when two adjacent stator units are far away from each other;
FIG. 3a is a schematic structural diagram of two adjacent stator units (before rotation) according to an embodiment of the present invention;
FIG. 3b is a schematic structural diagram of two adjacent stator units (after rotation) according to an embodiment of the present invention;
in the figure:
1-a stator unit; 11-outer yoke; 111-a slide; 112-a sliding groove; 113-a fastening point; 12-inner teeth; 121-first inner tooth; 122-second inner teeth.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
In the stator core of the existing chain structure, because the distance between two adjacent stator units is small and the rotation angle is limited, during winding, the stator units can interfere with winding equipment, so that the material utilization rate and the winding efficiency are low, the winding speed is low, and the assembly efficiency of a motor is low. The invention creatively provides a stator core, which comprises a plurality of stator units, wherein one end of an outer yoke part of each stator unit along the circumferential direction of the stator unit is provided with a sliding piece or a sliding groove, and the other end of the outer yoke part is provided with a sliding groove or a sliding piece; the sliding piece of one stator unit is matched with the sliding groove of the other stator unit to realize the sliding connection of the two adjacent stator units; the interval between the adjacent stator unit when having increased the wire winding, the slider is at the sliding tray internal rotation, and then has increased the gyration angle between two adjacent stator units, has avoided stator unit to interfere the spooling equipment, has improved winding speed and motor assembly efficiency, has solved the limited wire-wound problem of influence of chain structure's stator core gyration angle.
As shown in fig. 1a, 1b and 1c, the present embodiment provides a stator core including a plurality of stator units 1, each stator unit 1 including an outer yoke portion 11 and an inner tooth portion 12, the outer yoke portion 11 being used for connection between the stator units 1, the inner tooth portion 12 being used for winding a winding; when winding, two adjacent stator units 1 need to rotate for a certain angle, so that a certain operation space is formed between the two stator units 1, and winding of the winding equipment is facilitated; specifically, of the two adjacent stator units 1, one stator unit 1 includes a first inner tooth 121, and the other stator unit 1 includes a second inner tooth 122; when the first inner tooth 121 is wound, the second inner tooth 122 needs to avoid the extension line of the bottom of the first inner tooth 121, that is, the second inner tooth 122 is located outside the extension line of the bottom of the first inner tooth 121, if the rotation angle between two adjacent stator units 1 is insufficient, the second inner tooth 122 interferes with the winding apparatus, and the winding cannot be realized;
one end of the outer yoke 11 in the circumferential direction of the stator unit 1 is formed with a sliding piece 111 or a sliding groove 112, and correspondingly, the other end of the outer yoke 11 in the circumferential direction of the stator unit 1 is formed with a sliding groove 112 or a sliding piece 111; specifically, two cases are classified: firstly, a sliding piece 111 is formed at one end of the outer yoke part 11 along the circumferential direction of the stator unit 1, and a sliding groove 112 is formed at the other end of the outer yoke part 11 along the circumferential direction of the stator unit 1; both ends of the outer yoke 11 along the circumferential direction of the stator unit 1 are provided with a sliding piece 111 and a sliding groove 112, and the arrangement mode of the sliding piece 111 and the sliding groove 112 is not limited;
it should be noted that the structures of the sliding member 111 and the sliding groove 112 are not limited, and the cross-sectional structure of the sliding member 111 may be a circle, a semicircle or an arc; the cross-sectional structure of the sliding groove 112 may be a middle waist shape, a V shape, or an L shape.
The sliding piece 111 of one stator unit 1 is matched with the sliding groove 112 of the other stator unit 1 to realize the sliding connection of two adjacent stator units 1; because the sliding groove 112 has a certain extending distance, when the sliding piece 111 slides along the extending direction of the sliding groove 112, the two adjacent stator units 1 can be far away or close to each other; during winding, the sliding piece 111 slides along the sliding groove 112 to enable the two adjacent stator units 1 to be away from each other; when rounding, the slider 111 slides along the slide groove 112, and the adjacent two stator units 1 are brought close to each other.
The stator unit 1 is composed of a plurality of laminated stator laminations, each stator lamination is provided with a buckling point 113 at the outer yoke part 11, the stator laminations can be connected between axial layers of the stator unit, and the stator laminations are ensured not to be dispersed and to be a whole;
in some embodiments, the stator laminations of each stator unit 1 have the same structure, and each stator lamination is formed with a sliding piece 111 and a sliding slot 112 at two ends of the outer yoke portion 11; in two adjacent stator units 1, a sliding piece 111 of a stator punching sheet of one stator unit 1 is matched with a sliding groove 112 of a stator punching sheet of the other stator unit 1, so that the two adjacent stator units 1 are connected;
in other embodiments, the stator core includes two different stator units 1, namely a first stator unit and a second stator unit, and the stator core is formed by arranging the first stator unit and the second stator unit at intervals; in two adjacent stator units 1, the first stator unit comprises a plurality of first stator punching sheets which are laminated together, and the second stator unit comprises a plurality of second stator punching sheets which are laminated together; the first stator punching sheet and the second stator punching sheet have different structures; specifically, the first stator punching is provided with sliding parts 111 at two ends of the outer yoke 11, and the second stator punching is provided with sliding grooves 112 at two ends of the outer yoke 11; namely, both ends of the outer yoke 11 of the first stator unit are formed with sliding pieces 111, both ends of the outer yoke 11 of the second stator unit are formed with sliding grooves 112, and the sliding pieces 111 of the first stator unit are connected with the sliding grooves 112 of the second stator unit; preferably, the length of the sliding part 111 of the first stator punching sheet along the axial direction of the stator unit 1 is slightly smaller than the thickness of the second stator punching sheet.
In order to increase the rotation angle of two adjacent stator units 1 during winding, the sliding piece 111 extends along the axial direction of the stator units 1, the sliding piece 111 can slide along the sliding groove 112, and the sliding piece 111 can rotate around the axial direction of the sliding piece 111 in the sliding groove 112; specifically, the slider 111 rotates in the axial direction of the slider 111 within the slide groove 112; when the sliding piece 111 slides along the sliding groove 112 to gradually separate the two stator units 1, the larger the distance between the two stator units 1 is, the larger the rotation angle of the two adjacent stator units 1 is, and the interference of the stator units 1 to the winding device during winding is avoided.
Further, the sliding direction of the sliding member 111 is different according to the extending direction of the sliding groove 112, and further, the gradually moving away or approaching direction of the two stator units 1 is different; the extending direction of the sliding groove 112 satisfies: the sliding piece 111 slides along the sliding groove 112, and the larger the distance between two adjacent stator units 1 is, the larger the rotation angle of one stator unit 1 relative to the other stator unit 1 can be; specifically, the sliding groove 112 includes two extending directions:
a circumferential component of the sliding groove 112 extending in the circumferential direction of the stator unit 1; as shown in fig. 2a and 2b, the sliding member 111 slides along the sliding groove 112, moving adjacent two stator units 1 away from or close to each other in the circumferential direction of the stator units 1; when two adjacent stator units 1 are away from each other, and the gap between the two outer yoke portions 11 in the circumferential direction of the stator units 1 is maximized, the sliding member 111 can rotate in the sliding groove 112 to the maximum rotation angle around the axial direction of the stator unit 1;
a radial component of the sliding groove 112 extending in the radial direction of the stator unit 1; the sliding piece 111 slides along the sliding groove 112 to move two adjacent stator units 1 away from or close to each other in the radial direction of the stator units 1; when two adjacent stator units 1 are away from each other so that the gap between the two outer yoke portions 11 in the radial direction of the stator units 1 is maximized, the slider can rotate in the slide groove 112 to the maximum rotation angle in the axial direction of the stator units 1.
Further, in two adjacent stator units 1, the distance between two adjacent outer yoke parts 11 along the circumferential direction or the radial direction of the stator unit 1 is K, wherein K is more than or equal to 0.2mm and less than or equal to 10 mm;
preferably, 0.5mm K8 mm.
In some embodiments, when the outer yoke portion 11 of the stator unit 1 is formed with the sliding members 111 and the sliding grooves 112 at both ends in the circumferential direction of the stator unit 1, the arrangement of the sliding members 111 and the sliding grooves 112 is various, and preferably, the sliding members 111 and the sliding grooves 112 are arranged at intervals at the end of the outer yoke portion 11.
Specifically, the stator core includes a first stator unit and a second stator unit, and when the sliding slot 112 extends in the circumferential direction of the stator unit 1:
sliding of stator unit 1: as shown in fig. 2a and 2b, the sliding member 111 slides along the sliding groove 112, so that the adjacent two stator units 1 are separated in the circumferential direction of the stator units 1, and the gap between the two outer yoke sections 11 in the circumferential direction of the stator units 1 is maximized, thereby facilitating the rotation of the subsequent stator units 1;
rotation of the stator unit 1: as shown in fig. 3a and 3b, the sliding member 111 can rotate within the sliding groove 112 with itself as an axis, and when the outer yokes 11 of the two stator units 1 are in contact, the rotation angle is maximized, so that the space between the two stator units 1 is maximized, facilitating the winding of the winding apparatus.
The embodiment also provides a motor stator, which comprises the stator core.
The embodiment also provides a motor, which comprises the motor stator.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A stator core comprising a plurality of stator units, each of the stator units comprising an outer yoke portion; the stator unit is characterized in that a sliding piece or a sliding groove is formed at one end of the outer yoke part along the circumferential direction of the stator unit, and a sliding groove or a sliding piece is correspondingly formed at the other end of the outer yoke part along the circumferential direction of the stator unit;
the sliding piece of one stator unit is matched with the sliding groove of the other stator unit to realize the sliding connection of the two adjacent stator units.
2. The stator core as claimed in claim 1 wherein each stator unit includes a plurality of stator laminations stacked together; and each stator punching sheet is provided with a sliding piece and a sliding groove at two ends of the outer yoke part respectively.
3. The stator core according to claim 1, wherein one of the two adjacent stator units comprises a plurality of first stator laminations which are laminated together, and the other stator unit comprises a plurality of second stator laminations which are laminated together; the first stator punching sheet is arranged at two ends of the outer yoke portion and is provided with a sliding piece, and the second stator punching sheet is arranged at two ends of the outer yoke portion and is provided with a sliding groove.
4. The stator core according to any one of claims 2 to 3, wherein the sliding member extends in an axial direction of the stator unit, the sliding member is slidable along the sliding groove, and the sliding member is rotatable in the sliding groove about an axial direction of the sliding member.
5. The stator core according to claim 4, wherein the sliding slot extends in a direction satisfying: the sliding piece slides along the sliding groove, and the larger the distance between two adjacent stator units is, the larger the rotation angle of one stator unit relative to the other stator unit can be.
6. The stator core according to claim 5, wherein the sliding slot has a circumferential component extending in a circumferential direction of the stator unit; the sliding piece slides along the sliding groove, so that two adjacent stator units are far away along the circumferential direction of the stator units.
7. The stator core according to claim 5, wherein the sliding slot has a radial component extending in a radial direction of the stator unit; the sliding piece slides along the sliding groove to enable the adjacent two stator units to be far away along the radial direction of the stator units.
8. The stator core according to any one of claim 5, wherein in two adjacent stator units, a distance between two adjacent outer yoke portions is K, wherein K is greater than or equal to 0.2mm and less than or equal to 10 mm.
9. A stator for an electric machine, comprising the stator core according to any one of claims 1 to 8.
10. An electrical machine comprising the electrical machine stator of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950927.1A CN113746223A (en) | 2021-08-18 | 2021-08-18 | Stator core, motor stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950927.1A CN113746223A (en) | 2021-08-18 | 2021-08-18 | Stator core, motor stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113746223A true CN113746223A (en) | 2021-12-03 |
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ID=78731683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110950927.1A Pending CN113746223A (en) | 2021-08-18 | 2021-08-18 | Stator core, motor stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113746223A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241831A (en) * | 1998-06-30 | 2000-01-19 | 三菱电机株式会社 | Iron-core assembly and method for producing the same |
| CN105264745A (en) * | 2013-05-28 | 2016-01-20 | 三菱电机株式会社 | Rotating electric machine iron core |
| US20170126075A1 (en) * | 2014-04-16 | 2017-05-04 | Mitsubishi Electric Corporation | Rotary electric machine armature core |
-
2021
- 2021-08-18 CN CN202110950927.1A patent/CN113746223A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241831A (en) * | 1998-06-30 | 2000-01-19 | 三菱电机株式会社 | Iron-core assembly and method for producing the same |
| CN105264745A (en) * | 2013-05-28 | 2016-01-20 | 三菱电机株式会社 | Rotating electric machine iron core |
| US20170126075A1 (en) * | 2014-04-16 | 2017-05-04 | Mitsubishi Electric Corporation | Rotary electric machine armature core |
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Application publication date: 20211203 |