Motor winding mechanism

Abstract

The utility model provides a motor winding mechanism which is characterized in that a plurality of mounting grooves are arranged on a stator core in a circumferential array manner, magnet segmentation parts are formed between adjacent mounting grooves, the outer walls of the plurality of magnet segmentation parts are annularly sleeved with insulating sleeve blocks, and the insulating sleeve blocks are positioned on the side walls of the mounting grooves on the left and right sides and comprise a plurality of symmetrically arranged bearing surfaces; the distance between the bearing surfaces which are oppositely arranged is increased along with the increase of the distance between the bearing surfaces and the axis of the stator core, the conductor windings are annularly sleeved on the outer wall of the insulating sleeve block and penetrate through the two adjacent mounting grooves at the same time, and the number of layers of the conductor windings annularly sleeved on the bearing surfaces is kept consistent. According to the motor winding mechanism provided by the invention, on the basis of changing the side wall of the insulating sleeve block, the layout of the conductor winding annularly sleeving the outer ring of the insulating sleeve block is changed, so that the complete side wall with a relatively large area of the conductor winding is divided into a plurality of small-area side walls, and meanwhile, the distance between the side walls of the adjacent conductor windings is reduced; therefore, the operation requirement of improving the groove fullness rate in the mounting groove is met, and the performance of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field, especially relate to a motor winding mechanism. BACKGROUND

[0002] In the production process of motor winding, usually adopt round copper wire scattered embedding scheme, need embedding round copper wire from the slot of stator core in the slot in the production process, and the current slot structure is single fixed, the fixed inclined angle between the inner walls of adjacent slots, when the round copper wire wound in the slot forms winding, the adjacent windings produce larger spacing, and then directly limit the upper limit of slot fill factor (i.e. the ratio of the total cross-sectional area of round copper wire and slot area), and the slot fill factor directly affects the winding resistance, ohmic loss, thermal conductivity and operating power.

[0003] Therefore, in order to improve the operating power density of motor and reduce resistance, the utility model provides a motor winding mechanism. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a motor winding mechanism, the motor winding mechanism includes: a stator core, an insulation sleeve block, a conductor winding;

[0005] The stator core is circumferentially arrayed with a plurality of installation slots, and a magnet partition part is formed between adjacent installation slots, the outer wall of the plurality of magnet partition parts is annularly sleeved with an insulation sleeve block, the side wall of the insulation sleeve block located in the left and right two installation slots includes a plurality of symmetrically arranged bearing surfaces, and the spacing of the bearing surfaces arranged opposite to each other increases with the increase of the spacing of the stator core axis.

[0006] The conductor winding is annularly sleeved on the outer wall of the insulation sleeve block and simultaneously penetrates through the two adjacent installation slots, and the number of layers of the conductor winding annularly sleeved on the bearing surface remains consistent.

[0007] Further, the side wall of the insulation sleeve block located in the left and right two installation slots includes the symmetrically arranged bearing surfaces including a first bearing surface, a second bearing surface and a third bearing surface, the spacing of the two first bearing surfaces, the spacing of the two second bearing surfaces and the spacing of the two third bearing surfaces increase in turn, and the widths of the first bearing surface, the second bearing surface and the third bearing surface remain consistent.

[0008] Further, the outer wall of the insulation sleeve block further includes a limiting surface for connecting adjacent bearing surfaces, and each of the bearing surfaces close to the stator core axis is provided with an extension, and the side wall of the extension facing the stator core axis is flush with the adjacent limiting surface.

[0009] Further, the limiting surface and the bearing surface maintain an included angle of 3-8°.

[0010] Further, the upper and lower ends of the insulating sleeve block are provided with wire blocks, the wire blocks are connected with the side walls of the insulating sleeve block away from the axis of the stator core, and the wire blocks are provided with lead grooves corresponding to the adjacent two bearing surfaces.

[0011] Further, the outer ring of the stator core is provided with corresponding vertical slot grooves corresponding to the notches.

[0012] Further, the stator core is provided with a plurality of mating surfaces corresponding to the bearing surfaces and facing the side wall of the mounting groove.

[0013] Compared with the prior art, the embodiment of the utility model has at least the following advantages:

[0014] The motor winding mechanism provided in the application changes the layout of the conductor winding of the ring sleeve on the outer ring of the insulating sleeve block by changing the side wall of the insulating sleeve block, so that the large-area complete side wall of the conductor winding is divided into a plurality of small-area side walls, and the spacing between the adjacent conductor winding side walls is reduced, so as to realize the operation requirement of improving the slot fill rate in the mounting groove, improve the motor power, reduce the resistance and ohmic loss, and improve the performance of the motor.

[0015] Other features and advantages of the utility model will be described in the subsequent description, and some of them will become apparent from the description, or will be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structure indicated in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0017] Figure 1 A schematic view of the motor winding mechanism in the embodiment of the utility model is shown;

[0018] Figure 2 A structural schematic view of the insulating sleeve block in the embodiment of the utility model is shown;

[0019] Figure 3 A top view schematic view of the motor winding mechanism in the embodiment of the utility model is shown;

[0020] Figure 4 A sectional view schematic view of the stator core and the insulating sleeve block in the embodiment of the utility model is shown.

[0021] In the figure, the stator core 1, the insulating sleeve block 2, the conductor winding 3, the mounting groove 4, the magnet partition 5, the bearing surface 6, the first bearing surface 601, the second bearing surface 602, the third bearing surface 603, the limiting surface 7, the extension 8, the wire block 9, the lead slot 10, the vertical slot 11, the butt joint surface 12. DETAILED DESCRIPTION

[0022] To make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The utility model provides a kind of motor winding mechanism, Figure 1 It shows the schematic diagram of the motor winding mechanism in the embodiments of the utility model, referring to Figure 1 And Figure 3 In the figure, the stator core 1, the insulating sleeve block 2, the conductor winding 3, the mounting groove 4, the magnet partition 5, the bearing surface 6, the first bearing surface 601, the second bearing surface 602, the third bearing surface 603, the limiting surface 7, the extension 8, the wire block 9, the lead slot 10, the vertical slot 11, the butt joint surface 12.

[0024] The stator core 1 is provided with a plurality of mounting grooves 4 in circumferential array, and the magnet partition 5 is formed between adjacent mounting grooves 4, the outer wall of a plurality of magnet partitions 5 is sleeved with an insulating sleeve block 2, and the insulating sleeve block 2 is located on the side wall of the left and right two mounting grooves 4 and includes a plurality of symmetrically arranged bearing surfaces 6, the bearing surfaces 6 arranged opposite to each other are arranged in parallel, and the spacing of the bearing surfaces 6 arranged opposite to each other increases with the increase of the spacing of the stator core 1.

[0025] The conductor winding 3 is sleeved on the outer wall of the insulating sleeve block 2 and penetrates through the adjacent two mounting grooves 4 at the same time, and the number of layers of the conductor winding 3 sleeved on the bearing surface 6 remains consistent.

[0026] The motor winding mechanism provided in the application changes the layout of the conductor winding 3 sleeved on the outer ring of the insulating sleeve block 2 by changing the side wall of the insulating sleeve block 2, so that the large-area complete side wall of the conductor winding 3 is divided into a plurality of small-area side walls, and the spacing between the side walls of adjacent conductor windings 3 is reduced, to realize the operation requirement of improving the slot fullness rate in the mounting groove 4, improve the motor power, reduce the resistance and ohmic loss, and improve the performance of the motor.

[0027] In the actual use process, referring to Figure 4, the side wall of the installation slot 4 on the left and right sides of the insulation sleeve block 2 is provided with symmetrically arranged bearing surfaces 6, including a first bearing surface 601, a second bearing surface 602, and a third bearing surface 603. The interval of the first bearing surface 601, the interval of the second bearing surface 602, and the interval of the third bearing surface 603 gradually increase, and the widths of the first bearing surface 601, the second bearing surface 602, and the third bearing surface 603 are consistent. Figure 4 In the example shown, the group of opposite bearing surfaces 6 closest to the axis of the stator core 1 is the first bearing surface 601, and the group of opposite bearing surfaces 6 farthest from the axis of the stator core 1 is the third bearing surface 603. The second bearing surface 602 is between the first bearing surface 601 and the third bearing surface 603.

[0028] The complete magnet segment 5 outer wall is divided into three equal-width first bearing surfaces 601, second bearing surfaces 602, and third bearing surfaces 603 by equal intervals, so that the conductor winding 3 volume wrapped outside the first bearing surface 601, the second bearing surface 602, and the third bearing surface 603 remains consistent.

[0029] At the same time, through the above division process, after the conductor winding 3 is wound, the originally large gap area between adjacent conductor windings 3 is divided into three smaller gap areas, and the sum of the three smaller gap areas in this embodiment is less than the originally large gap area, thereby improving the slot fill rate of the installation slot 4.

[0030] In Figure 2 In the example shown, the outer wall of the insulation sleeve block 2 further includes a limiting surface 7 for connecting adjacent bearing surfaces 6. The bearing surfaces 6 are provided with an extension 8 at one end close to the axis of the stator core 1. The side wall of the extension 8 facing the axis of the stator core 1 is flush with the adjacent limiting surface 7. Based on the positional deviation between adjacent bearing surfaces 6, the conductor winding 3 wound on the corresponding bearing surface 6 will not deviate to the bearing surface 6 with smaller interval due to the positional deviation, thereby improving the stability of the conductor winding 3 wound on the outer wall of the magnet segment 5.

[0031] At the same time, in order to further improve the stability of the conductor winding 3 wound on the outer wall of the magnet segment 5 and the slot fill rate of the installation slot 4, the limiting surface 7 and the bearing surface 6 are set to have an included angle of 3-8°, so that the conductor winding 3 wound on the bearing surface 6 tends to tilt towards the included angle, effectively ensuring the stability of the conductor winding 3.

[0032] Specifically, the upper and lower ends of the insulation sleeve block 2 are provided with wire blocks 9, which are connected to the side wall of the insulation sleeve block 2 away from the axis of the stator core 1. The wire blocks 9 are provided with lead grooves 10 corresponding to the adjacent two bearing surfaces 6.

[0033] In the actual conductor winding 3 assembly process, after the conductor winding 3 is sleeved on the insulating sleeve block 2, the end wire of the conductor winding 3 is led out and tied on the corresponding lead slot 10, avoiding the process of first threading the end wire of the conductor winding 3 through the stator slot, improving the installation convenience of the conductor winding 3, and saving the material usage of the conductor winding 3.

[0034] Correspondingly, a vertical strip groove 11 is arranged at the position corresponding to the lead slot 10 of the outer circle of the stator core 1, which improves the structural integrity of the device as a whole and improves the firmness of the motor winding mechanism of the application in the inner wall of the motor shell.

[0035] In addition, the stator core 1 is provided with a plurality of docking surfaces 12 on the side wall facing the mounting groove 4, which are adapted to the bearing surface 6, so that the side wall of the insulating sleeve block 2 maintains a uniform thickness.

[0036] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between multiple elements or the interaction relationship between multiple elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric machine winding mechanism, characterized by, Include: Stator core (1), insulation sleeve block (2), conductor winding (3); The stator core (1) is provided with a plurality of installation grooves (4) in the circumferential array, the magnetic body partition part (5) is formed between the adjacent installation grooves (4), the outer wall of the plurality of magnetic body partition parts (5) is sleeved with the insulation sleeve block (2), the insulation sleeve block (2) is located on the side wall of the left and right two installation grooves (4) and includes a plurality of symmetrically arranged bearing surfaces (6), and the spacing between the bearing surfaces (6) arranged opposite to each other increases with the increase of the spacing from the axis of the stator core (1); The conductor winding (3) is sleeved on the outer wall of the insulation sleeve block (2) and simultaneously penetrates the adjacent two installation grooves (4), and the layer number of the conductor winding (3) sleeved on the bearing surface (6) remains consistent.

2. The motor winding mechanism of claim 1, wherein, The side wall of the insulation sleeve block (2) located on the left and right two installation grooves (4) includes the symmetrically arranged bearing surface (6) including the first bearing surface (601), the second bearing surface (602) and the third bearing surface (603), the spacing of the two first bearing surfaces (601), the spacing of the two second bearing surfaces (602) and the spacing of the two third bearing surfaces (603) increase in turn, and the widths of the first bearing surface (601), the second bearing surface (602) and the third bearing surface (603) remain consistent.

3. The motor winding mechanism of claim 1, wherein, The outer wall of the insulation sleeve block (2) further includes a limiting surface (7) for connecting adjacent bearing surfaces (6), one end of the bearing surface (6) close to the axis of the stator core (1) is provided with an extension part (8), and the side wall of the extension part (8) facing the axis of the stator core (1) is flush with the adjacent limiting surface (7).

4. The motor winding mechanism of claim 3, wherein, The limiting surface (7) and the bearing surface (6) maintain an included angle of 3-8°.

5. The motor winding mechanism of claim 1, wherein, The upper and lower ends of the insulation sleeve block (2) are provided with wire blocks (9), the wire blocks (9) are connected with the side wall of the insulation sleeve block (2) away from the axis of the stator core (1), and the wire blocks (9) are provided with lead grooves (10) corresponding to the adjacent two bearing surfaces (6).

6. The motor winding mechanism of claim 5, wherein, The outer circle of the stator core (1) is provided with a corresponding vertical slot (11) corresponding to the notch.

7. The machine winding arrangement of any of claims 1-6, wherein, The stator core (1) is provided with a plurality of butt joint surfaces (12) corresponding to the bearing surface (6) on the side wall facing the installation groove (4).

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