Disclosure of Invention
The invention provides a winding structure of a motor stator and a winding method thereof, and aims to solve the problems that the assembly process is complicated and the production efficiency is affected due to the winding mode of the motor stator.
The invention provides a winding structure of a motor stator, which comprises a stator frame, a wire and pins, wherein the stator frame comprises an even number of winding teeth, each winding tooth is wound with a coil through the wire, the coils on two opposite winding teeth are wound by the same wire to form a group of windings, the pins are connected to the stator frame, the position of each pin corresponds to one winding tooth, two ends of the wire after winding are respectively wound on the pins, and the wire sequentially crosses around a plurality of winding teeth at intervals along the inner side of the stator frame after being wound on one winding tooth and is wound on the opposite winding teeth.
As a further improvement of the invention, the winding structure of the wire passing through two adjacent winding teeth is as follows: the wire bypasses the bottom and top of two adjacent wire winding teeth, respectively.
As a further improvement of the present invention, when an even number of winding teeth are spaced between two opposite winding teeth, the winding structure of the wire is: the coil passes through the bottom of the winding tooth where the coil is located, bypasses the top of the adjacent winding tooth, bypasses the bottom of the meta winding tooth, circulates in the way, and finally is connected into and wound on the tooth top of the opposite winding tooth to form the coil.
As a further improvement of the present invention, when an odd number of winding teeth are spaced between two opposite winding teeth, the winding structure of the wire is as follows: after penetrating out from the bottom of the winding tooth where the coil is positioned, bypassing the top of the adjacent winding tooth, and finally, connecting and winding the coil from the bottom of the opposite winding tooth; or the coil passes through the bottom of the winding tooth where the coil is located, bypasses the top of the adjacent winding tooth, bypasses the bottom of the meta winding tooth, circulates in the way, and finally is connected into and wound on the tooth top of the opposite winding tooth to form the coil.
As a further improvement of the invention, the tail end of the winding tooth is provided with a limit shoe part, the winding tooth and the stator frame form an I-shaped coil bracket, and the coil is wound on the winding tooth and is positioned between the limit shoe part and the stator frame.
The invention also provides a winding method of the motor stator, which comprises the following steps:
s1, winding a wire on one winding tooth of a stator frame to form a coil, sequentially winding the wire around a plurality of winding teeth at intervals from the inner side of the stator frame, winding the wire on opposite winding teeth to form another coil, and forming a group of windings by two groups of opposite coils;
s2, winding two ends of the wire on pins corresponding to the opposite winding teeth;
s3, repeating the steps S1 and S2 to wind coils on other opposite winding teeth, winding two ends of the lead on opposite contact pins, and winding the coils on all the winding teeth to finish the winding of the motor stator.
As a further improvement of the present invention, when the wire passes through two adjacent winding teeth in the step S1, the wire bypasses the bottom and the top of the two adjacent winding teeth, respectively.
As a further improvement of the present invention, the winding method of the wire outlet end of the coil includes the following cases:
when an even number of winding teeth are arranged between the two opposite winding teeth, the wire passes through the bottom of the winding tooth where the coil is positioned, bypasses the top of the adjacent winding tooth, bypasses the bottom of the meta winding tooth, circulates in this way, and finally is connected into and wound on the tooth top of the opposite winding tooth to form the coil.
As a further improvement of the present invention, the winding method of the wire outlet end of the coil includes the following cases:
when an odd number of winding teeth are arranged between two opposite winding teeth, the wire passes through the bottom of the winding tooth where the coil is positioned, bypasses the top of the adjacent winding tooth, and finally is connected into and wound on the bottom of the opposite winding tooth to form the coil; or the coil passes through the bottom of the winding tooth where the coil is located, bypasses the top of the adjacent winding tooth, bypasses the bottom of the meta winding tooth, circulates in the way, and finally is connected into and wound on the tooth top of the opposite winding tooth to form the coil.
As a further improvement of the present invention, when the coil is wound on the winding teeth, the winding range of the coil is located in the region between the limit shoe of the winding teeth and the stator frame.
The beneficial effects of the invention are as follows: in the method, the butt-joint wires of the opposite coils are routed from the top of the stator frame and converted into the mode of routing from the inside of the stator frame, so that the risk of false touch caused by the contact with the wires on the contact pins is avoided, the step of executing the separation between the wires is reduced, and the working efficiency is improved; and the wires are more compact and firm by sequentially crossing and bypassing the winding teeth, so that the butt-joint wires are hidden.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1 and 2, the winding structure of a motor stator of the present invention includes a stator frame 1, a wire 4, and pins 5, wherein the stator frame 1 includes an even number of winding teeth 2, each winding tooth 2 is wound with a coil 6 through the wire 4, the coils 6 on two opposite winding teeth 2 are wound by the same wire 4 to form a group of windings, the pins 5 are connected to the stator frame 1, the position of each pin 5 corresponds to one winding tooth 2, two ends of the wire 4 after winding are respectively wound onto the pins 5, and the wire 4 sequentially crosses around a plurality of winding teeth 2 at intervals along the inner side of the stator frame 1 after being wound on one winding tooth 2 and is wound onto the opposite winding teeth 2.
The middle wires 4 of the two opposite coils 6 are routed from the inside of the stator frame 1, so that the internal space of the stator frame 1 is fully utilized, the problem that the existing winding is routed from the top of the stator frame 1 and can be in contact winding with the winding on the contact pin 5 is solved, and the complicated process of a wire pulling process is also required to be added. The wire 4 adopts a mode of intersecting winding among the plurality of winding teeth 2, so that the wire 4 is in a V-shaped wiring in the stator, and the wiring structure is more compact under the condition that the wire 4 can be fixed and tightened. The whole wiring structure is simpler, and the problem that a plurality of wires 4 are mutually wound is avoided.
The winding structure of the wire 4 passing through the two adjacent winding teeth 2 is as follows: the wire 4 bypasses the bottom and top of two adjacent wire winding teeth 2, respectively. The bottom and the top of the adjacent winding teeth 2 are respectively used as supporting points for winding the wires 4, the characteristic that the distance between the brackets of the adjacent winding teeth 2 is short is utilized, and the wiring structure of the wires 4 in the area is straightened through the two supporting points, so that the problem that in the existing wiring structure, the span between two opposite supporting points of the wires 4 is large, and the wires 4 are easy to loosen is avoided.
When an even number of winding teeth 2 are spaced between two opposite winding teeth 2, the winding structure of the wire 4 is as follows: after passing out from the bottom of the winding tooth 2 where the coil 6 is located, the coil bypasses the top of the adjacent winding tooth 2, bypasses the bottom of the meta winding tooth 2, circulates in this way, and finally is connected into and wound on the top of the opposite winding tooth 2 to form the coil 6.
When an odd number of winding teeth 2 are spaced between two opposite winding teeth 2, the winding structure of the wire 4 is as follows: after penetrating out from the bottom of the winding tooth 2 where the coil 6 is positioned, bypassing the top of the adjacent winding tooth 2, and finally connecting and winding from the bottom of the opposite winding tooth 2 to form the coil 6; or the coil 6 passes through the bottom of the winding tooth 2 where the coil 6 is positioned, bypasses the top of the adjacent winding tooth 2, bypasses the bottom of the adjacent winding tooth 2, circulates in this way, and finally is connected into and wound on the top of the opposite winding tooth 2 to form the coil 6.
When a plurality of winding teeth 2 are arranged between two opposite winding teeth 2, the wires 4 sequentially form V-shaped running positions and pass through the plurality of winding teeth 2 to form a multi-section turning-back running line structure, and each turning-back point uses the top or the bottom of the winding teeth 2 as a supporting point, so that each section of wires 4 can be straightened, the whole structure is more compact, and the internal structural characteristics of the stator frame 1 are fully utilized.
When an even number of winding teeth 2 are spaced, after the wire 4 winds the coil 6, the wire goes out from the top or the bottom of the winding teeth 2, turns back at a plurality of positions of the spaced winding teeth 2, finally enters from the bottom or the top of the opposite winding teeth 2, and then winds the coil 6; when an odd number of winding teeth 2 are spaced, the wire 4 is wound, the coil 6 goes out from the top or bottom of the winding teeth 2, is folded back at a plurality of positions of the spaced winding teeth 2, finally enters from the top or bottom of the opposite winding teeth 2, and then is wound with the coil 6, so that a winding structure of a group of opposite coils 6 is completed.
The tail end of the winding tooth 2 is provided with a limiting shoe part 3, the winding tooth 2 and the stator frame 1 form an I-shaped coil 6 bracket, and the coil 6 is wound on the winding tooth 2 and is positioned between the limiting shoe part 3 and the stator frame 1.
The plurality of limit shoes 3 form an inner ring, limit the area of the coil not exceeding the inner ring, make the coil 6 can be totally wound on the independent winding teeth 2 without mutual influence. Each winding tooth 2, the limit shoe 3 and the stator frame 1 form a winding area, and a plurality of winding areas can be arranged to meet the power requirement according to the output power required by the motor, wherein the number of the plurality of areas is even.
Based on the motor stator winding structure, the invention also provides a motor stator winding method, which comprises the following steps:
s1, winding a wire 4 on one winding tooth 2 of a stator frame 1 to form a coil 6, sequentially winding the wire 4 around a plurality of winding teeth 2 at intervals from the inner side of the stator frame 1, winding the wire on the opposite winding teeth 2 to form another coil, and forming a group of windings by two groups of opposite coils 6;
s2, winding two ends of the wire 4 on pins 5 corresponding to the opposite winding teeth 2;
s3, repeating the steps S1 and S2 to wind coils 6 on other opposite winding teeth 2, winding two ends of the wire 4 on opposite contact pins 5, and winding the coils 6 on all the winding teeth 2 to finish winding of a motor stator.
Each group of opposite windings on the stator frame 1 are connected by the same wire 4, each wire 4 is wound into two coils, and the wire 4 part between the two coils 6 is wound in a crossing way between the plurality of winding teeth 2, so that each wire is more compact inside the stator frame 1, more wires 4 can be contained in the stator frame 1, the inner space of the stator frame 1 is fully utilized for winding, and the problem that the wires 4 are disordered due to the fact that the external wiring of the stator frame 1 is needed in the prior art is solved.
When the wire 4 passes through two adjacent winding teeth 2 in step S1, the wire 4 bypasses the bottom and top of the two adjacent winding teeth 2, respectively. The wire 4 is folded and wound at the bottom and the top of two adjacent winding teeth 2 to form a V-shaped winding track, and the wire 4 is tightly fixed by utilizing the structure of the plurality of winding teeth 2, so that the wire 4 is prevented from loosening.
The winding method of the wire outlet end of the coil 6 includes the following cases:
when an even number of winding teeth 2 are arranged between the two opposite winding teeth 2, the lead 4 passes through the bottom of the winding tooth 2 where the coil 6 is positioned, bypasses the top of the adjacent winding tooth 2, bypasses the bottom of the meta winding tooth 2, circulates in this way, and finally is connected into and wound on the top of the opposite winding tooth 2 to form the coil 6.
The winding method of the wire outlet end of the coil 6 includes the following cases:
when an odd number of winding teeth 2 are arranged between two opposite winding teeth 2, the lead 4 passes through the bottom of the winding tooth 2 where the coil 6 is positioned, bypasses the top of the adjacent winding tooth 2, and finally is connected into and wound on the bottom of the opposite winding tooth 2 to form the coil 6; or the coil 6 passes through the bottom of the winding tooth 2 where the coil 6 is positioned, bypasses the top of the adjacent winding tooth 2, bypasses the bottom of the adjacent winding tooth 2, circulates in this way, and finally is connected into and wound on the top of the opposite winding tooth 2 to form the coil 6.
According to the motor power requirement, there are various numbers of winding teeth 2, so in order to ensure that the wire 4 can be fixed, the wire 4 sequentially bypasses the winding teeth 2, two groups of coils 6 are finally formed on the opposite winding teeth 2, two ends of the wire 4 are wound on the contact pins 5, the contact pins 5 are connected with a power supply to form a current, the wire 4 is connected with the contact pins to form a current, the current forms a magnetic field through the coils, and the magnetism of the adjacent winding teeth 2 is different, so that the middle rotor is driven to rotate.
When the coil 6 is wound around the winding teeth 2, the winding range of the coil 6 is located in the region between the limit shoe 3 of the winding teeth 2 and the stator frame 1. The coil 6 is wound in the region formed by the limit shoe 3, the winding teeth 2 and the stator frame 1 to form a plurality of mutually independent coils.
The wiring of the wires 4 is arranged in the stator frame 1, and under the condition that the wires are fixed in a crossed wiring mode, the whole structure is more compact, the internal space of the stator frame 1 is fully utilized, and the problem of mess and mutual interference caused by a plurality of wires 4 is avoided. The production process of stripping the separated wires 4 is reduced, the winding process is simple, and the cost of manual operation is saved.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.