CN115241998A - Double flat wire winding stator device of inner rotor motor - Google Patents

Double flat wire winding stator device of inner rotor motor Download PDF

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Publication number
CN115241998A
CN115241998A CN202110438996.4A CN202110438996A CN115241998A CN 115241998 A CN115241998 A CN 115241998A CN 202110438996 A CN202110438996 A CN 202110438996A CN 115241998 A CN115241998 A CN 115241998A
Authority
CN
China
Prior art keywords
winding
joint
rotor motor
piece
embedded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110438996.4A
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Chinese (zh)
Inventor
尤卫建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aidesi Automobile Motor Wuxi Co ltd
Original Assignee
Aidesi Automobile Motor Wuxi Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aidesi Automobile Motor Wuxi Co ltd filed Critical Aidesi Automobile Motor Wuxi Co ltd
Priority to CN202110438996.4A priority Critical patent/CN115241998A/en
Publication of CN115241998A publication Critical patent/CN115241998A/en
Pending legal-status Critical Current

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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
    • 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
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles

Abstract

The invention discloses a double-flat wire winding stator device of an inner rotor motor, which comprises a plurality of splicing sheets, wherein the splicing sheets are sequentially and annularly spliced end to form a stator structure; the splicing sheet comprises a winding sheet and a connecting structure; the winding sheets and the connecting structures are connected to form an L-shaped structure, the connecting structures are connected in an end-to-end annular mode, and the winding sheets are arranged towards one side of the center direction of the stator structure; the winding sheet is sleeved with a winding; the winding comprises an inner winding and an outer winding, and the outer winding is sleeved on the inner winding.

Description

Double-flat wire winding stator device of inner rotor motor
Technical Field
The invention relates to the technical field of motors, in particular to a double-flat-wire winding stator device of an inner rotor motor.
Background
The winding of the current direct-drive motor is divided into two forms, namely a centralized winding and a distributed winding, most of the silicon steel sheet forms are of an integrated structure, and in recent years, due to the development of the centralized winding, the structure of a split-type I-shaped silicon steel sheet is also widely applied to the field of direct-drive motors. The motor with the structure has high efficiency and high precision and is increasingly applied to the fields of high-precision cooperative robots and the like. Most of splicing structures of the independent windings can cause unstable structure of the stator, and auxiliary means such as glue pouring, paint dipping and the like are needed to establish the stability; meanwhile, the problem of width ratio of the flat wire during winding of the flat wire winding also causes insulation paint cracking at the corner part of the winding, and the insulation performance of the winding is affected.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a double-flat-wire winding stator device of an inner rotor motor, which solves the problems that a paint film at a corner is cracked due to unstable splicing structure of the conventional stator of the inner rotor motor and overlarge width-to-width ratio of a flat enameled wire.
The technical scheme is as follows: in order to achieve the purpose, the double-flat-wire winding stator device of the inner rotor motor comprises a plurality of splicing sheets, wherein the splicing sheets are sequentially and annularly spliced end to form a stator structure; the splicing sheet comprises a winding sheet and a connecting structure; the winding sheets and the connecting structures are connected to form an L-shaped structure, the connecting structures are connected in an end-to-end annular mode, and the winding sheets are arranged towards one side of the center direction of the stator structure; the winding sheet is sleeved with a winding; the winding comprises an inner winding and an outer winding, and the outer winding is sleeved on the inner winding.
Furthermore, the connecting structure comprises a curved piece, the curved piece has a certain radian, two ends of the curved piece are respectively a caulking groove end and a mosaic block end, and the caulking groove ends of the adjacent splicing pieces are correspondingly embedded in the mosaic block ends; one side of an inner ring of the caulking groove end of the bent piece is connected with the winding piece, and the caulking groove end is provided with a caulking groove; the embedded block end of the curved piece is provided with an embedded block.
Furthermore, the insert is in a circular cylindrical structure.
Furthermore, the connection position of the embedded block and the embedded block end is provided with an inclined plane embedded piece, the embedded groove end is provided with a veneer, and the inclined plane embedded piece corresponds to the veneer attached to the adjacent splicing pieces.
Furthermore, a clamping groove is formed in a gap between the inclined plane embedded piece and the embedded block, and a clamping strip is formed between the embedded plane and the inner wall of the embedded groove; the card strip corresponds to a card slot.
Further, the inner winding comprises an inner coil, a first inner joint and a second inner joint; the inner coils are stacked in a spiral structure, and joints at two ends of each inner coil respectively correspond to the first inner joint and the second inner joint; the outer winding group comprises an outer coil, a first outer joint and a second outer joint; the outer coils are stacked in a spiral structure, and joints at two ends of each outer coil respectively correspond to the first outer joint and the second outer joint; the outer coil warp size is larger than the inner coil warp size; the outer coil is sleeved and assembled on the inner coil; the first inner joint end is connected to the first outer joint in a welding mode, and the second inner joint end is connected to the second outer joint in a welding mode.
Further, the inner winding and the outer winding are formed by winding flat enameled wires.
Furthermore, the outer windings are sleeved on the inner windings, and the end portions of the coils of the outer windings and the inner windings are welded to form a winding.
Has the advantages that: the invention discloses a double-flat wire winding stator device of an inner rotor motor, which solves the problems that the traditional stator splicing structure of the inner rotor motor is unstable and a paint film at a corner is cracked due to the overlarge width ratio of a flat enameled wire, and comprises the following technical effects:
1) The splicing strength and the stability between the splicing sheets can be improved by embedding the embedded blocks into the embedding grooves;
2) The outer coil is sleeved with the parallel inner coil, so that the width ratio of a single flat enameled wire can be reduced, and the cracking of the insulating paint generated at the corner part of the winding can be effectively avoided.
Drawings
FIG. 1 is a structural diagram of the spliced sheet of the present invention after splicing;
FIG. 2 is a structural diagram of a splice sheet of the present invention;
fig. 3 is a diagram of a single winding structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-3: a double-flat wire winding stator device of an inner rotor motor comprises a plurality of splicing pieces 1, wherein the splicing pieces 1 are sequentially and annularly spliced end to form a stator structure; the splicing sheet 1 comprises a winding sheet 2 and a connecting structure; the winding sheets 2 are connected with the connecting structures to form an L-shaped structure, the connecting structures are connected in an end-to-end annular mode, and the winding sheets 2 are arranged towards one side of the center direction of the stator structure;
the winding sheet 2 is sleeved with a winding; the winding comprises an inner winding 5 and an outer winding 6, and the outer winding 6 is sleeved on the inner winding 5.
The connecting structure comprises a curved piece 31, the curved piece 31 has a certain radian, two ends of the curved piece 31 are respectively a caulking groove end 32 and an embedded block end 33, and the caulking groove end 32 of the adjacent splicing piece 1 is correspondingly embedded into the embedded block end 33; one inner ring side of the caulking groove end 32 of the curved piece 31 is connected to the winding piece 2, and the caulking groove end 32 is provided with a caulking groove 311; the insert block end 33 of the curved piece 31 is provided with an insert block 312; the splicing pieces 1 are annularly spliced to form the stator of the motor, so that the weight of the stator can be reduced, and the coils can be conveniently installed in a disassembled state; the insertion of the insert 312 into the insertion groove 311 during splicing can increase the splicing strength and the stability between the splicing sheets 1.
The insert 312 is a cylindrical structure; the insert block 312 with the circular columnar structure can be connected with the insert slot 311 only in a transverse insertion mode, so that the splicing sheet 1 cannot be loosened under the action of annular tension after being assembled.
The connection position of the insert block 312 and the insert block end 33 is provided with a bevel panel 313, the rabbet end 32 is provided with a veneer 314, and the bevel panel 313 corresponds to the veneer 314 attached to the adjacent splicing sheet 1; the beveled insert 313 abutting the face 314 may extend or enlarge the contact area between adjacent tiles 1, which may further enhance the mounting strength and mounting stability of the stator.
The clearance between the inclined plane insert piece 313 and the insert piece 312 forms a clamping groove 41, and the clamp strip 42 is formed by the insert surface 314 and the inner wall of the insert groove 311; the card strip 42 corresponds to the card slot 41; after the clamping strip 42 is embedded into the clamping groove 41, the secondary splicing pieces 1 can be connected outside the matching of the embedded block 312 and the embedded groove 311, so that the adjacent splicing pieces 1 are not easy to be disjointed when being subjected to a transverse external force.
Said inner winding 5 comprises an inner coil, a first inner joint 51 and a second inner joint 52; the inner coils are stacked in a spiral structure, and joints at two ends of the inner coils respectively correspond to a first inner joint 51 and a second inner joint 52; the outer winding 6 comprises an outer coil, a first outer joint 61 and a second outer joint 62; the outer coils are stacked in a spiral structure, and joints at two ends of each outer coil respectively correspond to the first outer joint 61 and the second outer joint 62; the outer coil warp size is larger than the inner coil warp size; the outer coil is sleeved on the inner coil; the first inner joint 51 is connected to the first outer joint 61 at an end thereof by welding, and the second inner joint 52 is connected to the second outer joint 62 at an end thereof by welding; because the inner winding 5 and the outer winding 6 are connected in parallel to form a winding, the length of the flat enameled wire of the winding can generate errors, the flat enameled wires forming the parallel winding must ensure that the resistance values are the same, so that the current values passing through the wires are the same, therefore, the sectional area of the flat enameled wire is adjusted, the consistent resistance value in the length of the winding is obtained, and the consistency of the resistance values of the winding is ensured; the outer coil is sleeved with the inner coil in parallel connection, so that the width of a single flat enameled wire can be reduced, and the cracking of insulating paint generated at the corner part of the winding can be effectively avoided.
The inner winding 5 and the outer winding 6 are formed by winding flat enameled wires; the flat enameled wire has stable insulating property and less redundancy, can effectively lighten the weight of the motor, and simultaneously reduces the waste of copper wires and the cost of the motor.
The plurality of outer windings 6 are sleeved on the plurality of inner windings 5, and the head end and the tail end of the coils of the plurality of outer windings 6 and the plurality of inner windings 5 are welded to form a winding; by adding the parallel flat enameled wires, the width of a single flat enameled wire can be smaller in the coil with the same resistance value, the cracking possibility of the insulating paint is further reduced, and the reliability and the safety of the motor are improved.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (8)

1. A double flat wire winding stator device of an inner rotor motor is characterized in that: the stator structure comprises a plurality of splicing pieces (1), wherein the splicing pieces (1) are sequentially and annularly spliced end to form a stator structure; the splicing sheet (1) comprises a winding sheet (2) and a connecting structure; the winding sheets (2) are connected with the connecting structures to form an L-shaped structure, the connecting structures are connected in an end-to-end annular mode, and the winding sheets (2) are arranged towards one side of the center direction of the stator structure; the winding sheet (2) is sleeved with a winding; the winding comprises an inner winding (5) and an outer winding (6), and the outer winding (6) is sleeved on the inner winding (5).
2. The double-flat-wire winding stator device of an inner rotor motor according to claim 1, wherein: the connecting structure comprises a curved piece (31), the curved piece (31) has a certain radian, two ends of the curved piece (31) are respectively provided with a caulking groove end (32) and an embedded block end (33), and the caulking groove ends (32) of the adjacent splicing pieces (1) are correspondingly embedded into the embedded block ends (33); one side of the inner ring of the caulking groove end (32) of the bent piece (31) is connected with the winding piece (2), and the caulking groove end (32) is provided with a caulking groove (311); an insert (312) is arranged at the insert end (33) of the curved piece (31).
3. The double flat wire winding stator device of an internal rotor motor according to claim 2, wherein: the insert (312) is in a circular cylindrical structure.
4. The double flat wire winding stator device of an inner rotor motor according to claim 2, wherein: the inserted block (312) is provided with an inclined plane embedded piece (313) at the connecting position with the inserted block end (33), the embedded groove end (32) is provided with a veneer (314), and the inclined plane embedded piece (313) corresponds to the veneer (314) attached to the adjacent splicing piece (1).
5. The double flat wire winding stator device of an internal rotor motor according to claim 4, wherein: a clamping groove (41) is formed in a gap between the inclined plane embedded piece (313) and the embedded block (312), and a clamping strip (42) is formed between the inlaid surface (314) and the inner wall of the embedded groove (311); the card strip (42) corresponds to a card slot (41).
6. The double flat wire winding stator device of an internal rotor motor according to claim 1, wherein: said inner winding (5) comprising an inner coil, a first inner joint (51) and a second inner joint (52); the inner coils are stacked in a spiral structure, and joints at two ends of each inner coil respectively correspond to a first inner joint (51) and a second inner joint (52); the outer winding (6) comprises an outer coil, a first outer joint (61) and a second outer joint (62); the outer coils are stacked in a spiral structure, and joints at two ends of each outer coil respectively correspond to a first outer joint (61) and a second outer joint (62); the size of the outer coil warp is larger than that of the inner coil warp; the outer coil is sleeved and assembled on the inner coil; the first inner joint (51) is connected at its end to a first outer joint (61) by welding and the second inner joint (52) is connected at its end to a second outer joint (62) by welding.
7. The double-flat-wire winding stator device of an inner rotor motor according to claim 1, wherein: the inner winding (5) and the outer winding (6) are formed by winding flat enameled wires.
8. The double-flat-wire winding stator device of an inner rotor motor according to claim 1, wherein: the outer windings (6) are sleeved on the inner windings (5), and the head ends and the tail ends of the coils of the outer windings (6) and the inner windings (5) are welded to form a winding.
CN202110438996.4A 2021-04-23 2021-04-23 Double flat wire winding stator device of inner rotor motor Pending CN115241998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110438996.4A CN115241998A (en) 2021-04-23 2021-04-23 Double flat wire winding stator device of inner rotor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110438996.4A CN115241998A (en) 2021-04-23 2021-04-23 Double flat wire winding stator device of inner rotor motor

Publications (1)

Publication Number Publication Date
CN115241998A true CN115241998A (en) 2022-10-25

Family

ID=83665837

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110438996.4A Pending CN115241998A (en) 2021-04-23 2021-04-23 Double flat wire winding stator device of inner rotor motor

Country Status (1)

Country Link
CN (1) CN115241998A (en)

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