Winding, stator assembly and winding die

Abstract

The invention provides a winding, a stator assembly and a winding mold. The winding includes a first coil component and a second coil component. The first coil assembly at least comprises a first first-gear coil and a first second-gear coil; the second coil assembly at least comprises a second first-gear coil and a second second-gear coil; the first end of the first first-gear coil is the wiring head end of the first coil assembly, the second end of the first first-gear coil is connected with the first end of the second first-gear coil, the second end of the second first-gear coil is connected with the first end of the second second-gear coil, and the second end of the second second-gear coil is connected with the first end of the first second-gear coil. The second end of the first second-gear coil is the wiring tail end of the second coil assembly. According to the application, the last coil of the first gear is connected with the last coil of the second gear, so that the electromagnetic wire connected between the two gears can be located in the same wire slot, the length of a passing wire required for connection between the two gears is shortened, and the probability of damage to the passing wire is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a winding, a stator assembly and a winding die. Background Art

[0002] At present, in the relevant technology, a winding is arranged on the stator, and multiple gear coils are arranged in the winding. When the multiple gear coils are assembled, usually the end of one gear coil is connected to the beginning of the next gear coil, and the end of the next gear coil is connected to the beginning of another gear coil. This connection method makes the length of the wire required for connecting the two gears longer, which makes the wire required for connecting the two gears easy to be damaged. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a winding.

[0005] A second aspect of the present invention provides a stator assembly.

[0006] A third aspect of the present invention provides a winding mold.

[0007] In view of this, the first aspect of the present invention provides a winding, including a first coil assembly and a second coil assembly. The first coil assembly at least includes a first first-gear coil and a first second-gear coil; the second coil assembly at least includes a second first-gear coil and a second second-gear coil; wherein the first end of the first first-gear coil is the connection head end of the first coil assembly, the second end of the first first-gear coil is connected to the first end of the second first-gear coil, the second end of the second first-gear coil is connected to the first end of the second second-gear coil, the second end of the second second-gear coil is connected to the first end of the first second-gear coil, and the second end of the first second-gear coil is the connection tail end of the second coil assembly.

[0008] In the technical solution, the winding includes a first coil assembly and a second coil assembly. The first coil assembly includes at least a first first-gear coil and a first second-gear coil, and the second coil assembly includes at least a second first-gear coil and a second second-gear coil, so that the winding can adjust the gear position. The first end of the first first-gear coil is the wiring head end of the first coil assembly, and the second end of the first first-gear coil is connected to the first end of the second first-gear coil to achieve the connection between the first first-gear coil and the second first-gear coil. The second end of the second first-gear coil is connected to the first end of the second second-gear coil to achieve the connection between the second first-gear coil and the second second-gear coil. The second end of the second second-gear coil is connected to the first end of the first second-gear coil, and the second end of the first second-gear coil is the wiring tail end of the second coil assembly to achieve the connection between the second second-gear coil and the first second-gear coil. In the present application, by connecting the second end of the second first-gear coil with the first end of the second second-gear coil, that is, connecting the last coil of the first gear with the last coil of the second gear, the electromagnetic wire connected between the two gears can be located in the same wire slot, shortening the length of the wire required for connecting between the two gears, and reducing the probability of wire damage.

[0009] In addition, the winding in the above technical solution provided by the present invention may also have the following additional technical features:

[0010] In some technical solutions of the present invention, optionally, the winding further includes a third coil assembly and a fourth coil assembly. The third coil assembly includes a third first-gear coil and a third second-gear coil; the fourth coil assembly includes a fourth first-gear coil and a fourth second-gear coil; wherein the first end of the third first-gear coil is connected to the second end of the second first-gear coil, the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, the second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil, the second end of the fourth second-gear coil is connected to the first end of the third second-gear coil, and the second end of the third second-gear coil is connected to the first end of the second second-gear coil.

[0011] In this technical solution, the winding also includes a third coil assembly and a fourth coil assembly. The third coil assembly includes a third first-gear coil and a third second-gear coil; the fourth coil assembly includes a fourth first-gear coil and a fourth second-gear coil. By setting the third coil assembly and the fourth coil assembly, the layout of the winding is more reasonable, so as to improve the efficiency of the motor. The first end of the third first-gear coil is connected to the second end of the second first-gear coil, and the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, so as to realize the connection between the third first-gear coil and the second first-gear coil and the fourth first-gear coil respectively. The second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil to realize the connection between the fourth first-gear coil and the fourth second-gear coil. The second end of the fourth second-gear coil is connected to the first end of the third second-gear coil to realize the connection between the fourth second-gear coil and the third second-gear coil. The second end of the third second-gear coil is connected to the first end of the second second-gear coil to realize the connection between the third second-gear coil and the second second-gear coil, so that the winding has four groups of coils and can be adjusted in two gears.

[0012] In some technical solutions of the present invention, optionally, the first coil assembly also includes a first three-gear coil; the second coil assembly also includes a second three-gear coil; wherein the first end of the first three-gear coil is connected to the second end of the first two-gear coil, and the second end of the first three-gear coil is connected to the first end of the second three-gear coil.

[0013] In this technical solution, the first coil assembly also includes a first three-gear coil; the second coil assembly also includes a second three-gear coil, so that the winding can be adjusted in three gears, thereby changing its performance parameters to achieve switching of different working states. The first end of the first three-gear coil is connected to the second end of the first two-gear coil to achieve connection between the first three-gear coil and the first two-gear coil, so that current can flow between the first three-gear coil and the first two-gear coil. The second end of the first three-gear coil is connected to the first end of the second three-gear coil to achieve connection between the first three-gear coil and the second three-gear coil, so that current can flow between the first three-gear coil and the second three-gear coil. By connecting the first end of the first three-gear coil with the second end of the first two-gear coil, the electromagnetic wire connected between the two gears can be located in the same wire slot, shortening the length of the wire required for connecting between the two gears, and reducing the probability of wire damage.

[0014] In some technical solutions of the present invention, optionally, the winding further includes a third coil assembly and a fourth coil assembly. The third coil assembly includes a third first-gear coil, a third second-gear coil and a third third-gear coil; the fourth coil assembly includes a fourth first-gear coil, a fourth second-gear coil and a fourth third-gear coil; wherein the first end of the third first-gear coil is connected to the second end of the second first-gear coil, the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, the second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil, the second end of the fourth second-gear coil is connected to the first end of the third second-gear coil, the second end of the third second-gear coil is connected to the first end of the second second-gear coil, the second end of the second third-gear coil is connected to the first end of the third third-gear coil, the second end of the third third-gear coil is connected to the first end of the fourth third-gear coil, and the second end of the fourth third-gear coil is the connection tail of the fourth coil assembly.

[0015] In this technical solution, the winding also includes a third coil assembly and a fourth coil assembly. The third coil assembly includes a third first-gear coil, a third second-gear coil and a third third-gear coil; the fourth coil assembly includes a fourth first-gear coil, a fourth second-gear coil and a fourth third-gear coil. By setting the third coil assembly and the fourth coil assembly, the layout of the winding is more reasonable, so as to improve the efficiency of the motor. The first end of the third first-gear coil is connected to the second end of the second first-gear coil, and the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, so as to realize the connection between the third first-gear coil and the second first-gear coil and the fourth first-gear coil respectively. The second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil to realize the connection between the fourth first-gear coil and the fourth second-gear coil. The second end of the fourth second-gear coil is connected to the first end of the third second-gear coil to realize the connection between the fourth second-gear coil and the third second-gear coil. The second end of the second third-gear coil is connected to the first end of the third third-gear coil, the second end of the third third-gear coil is connected to the first end of the fourth third-gear coil, and the second end of the fourth third-gear coil is the connection tail end of the fourth coil assembly to achieve the connection between the second third-gear coil, the third third-gear coil and the fourth third-gear coil, so that the winding has four groups of coils and a connection structure that can be adjusted in three gears.

[0016] In some technical solutions of the present invention, optionally, the winding includes at least one uninterrupted electromagnetic wire from the wiring head end to the wiring tail end.

[0017] In this technical solution, the winding includes at least one uninterrupted electromagnetic wire from the connection head end to the connection tail end, so that the winding can be wound continuously during winding. By winding the winding continuously, the connection heads of the windings at different gears are visualized, thereby improving the accuracy of winding and the production efficiency of the winding. In addition, at least one uninterrupted electromagnetic wire can also ensure the continuous transmission of current in the winding, avoiding current fluctuations or interruptions caused by line interruption or poor contact. The continuous electromagnetic wire can effectively generate and maintain an electromagnetic field.

[0018] In some technical solutions of the present invention, optionally, the winding further includes a first wire-passing portion, a first connection portion, a second wire-passing portion, and a second connection portion. The two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil; the first connection portion is connected to the first wire-passing portion; the two ends of the second wire-passing portion are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; the second connection portion is connected to the second wire-passing portion.

[0019] In this technical solution, the winding also includes a first wire-passing portion, a first wiring portion, a second wire-passing portion, and a second wiring portion. The two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil, so that the first wire-passing portion can serve as a connecting bridge between the fourth first-gear coil and the fourth second-gear coil, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The first wiring portion is connected to the first wire-passing portion to realize the installation of the first wiring portion, so that current can be transmitted between the first wiring portion and the first wire-passing portion, and the first wiring portion can be connected to an external circuit to transfer a corresponding air signal through the first wiring portion to adjust the gear position, thereby realizing the switching of the gear position. The two ends of the second wire-passing portion are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; so that the second wire-passing portion can serve as a connecting bridge between the first second-gear coil and the first third-gear coil, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second wiring part is connected to the second wire passing part, so that current can be transmitted between the second wiring part and the second wire passing part, and the second wiring part can be connected to an external circuit to transmit a corresponding air signal through the first wiring part to adjust the gear position, thereby realizing the switching of the gear position.

[0020] In some technical solutions of the present invention, optionally, the length of the first wiring portion is different from the length of the second wiring portion; and / or the number of winding turns of the first wiring portion is different from the number of winding turns of the second wiring portion.

[0021] In this technical solution, the length of the first wiring part is different from the length of the second wiring part. The first wiring part and the second wiring part correspond to different gear adjustments respectively. By setting different lengths, the operator of the gear position can identify the corresponding gear according to the length of the first wiring part and the length of the second wiring part, thereby avoiding operator error. The number of windings of the first wiring part is different from the number of windings of the second wiring part, so that the first wiring part and the second wiring part are clearly distinguished visually, so that the operator of the gear position can identify the first wiring part and the second wiring part by observing the number of windings.

[0022] In some technical solutions of the present invention, optionally, the winding further includes a second wire-passing portion, a second connection portion, a third wire-passing portion and a third connection portion. The two ends of the second wire-passing portion are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; the second connection portion is connected to the second wire-passing portion; the two ends of the third wire-passing portion are respectively connected to the second end of the second first-gear coil and the first end of the second second-gear coil; the third connection portion is connected to the third wire-passing portion.

[0023] In this technical solution, the two ends of the second wire-passing portion are respectively connected to the second end of the first second gear coil and the first end of the first third gear coil; so that the second wire-passing portion can serve as a connecting bridge between the first second gear coil and the first third gear coil, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second wiring portion is connected to the second wire-passing portion, so that current can be transmitted between the second wiring portion and the second wire-passing portion, and the second wiring portion can be connected to an external circuit to transfer a corresponding air signal through the first wiring portion to adjust the gear position, thereby realizing the switching of the gear position. The two ends of the third wire-passing portion are respectively connected to the second end of the second first gear coil and the first end of the second second gear coil, so that the third wire-passing portion can serve as a connecting bridge between the second first gear coil and the second second gear coil, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The third wiring portion is connected to the third wire-passing portion, and the third wiring portion can be connected to an external circuit to transfer a corresponding air signal through the third wiring portion to adjust the gear position, thereby realizing the switching of the gear position.

[0024] In some technical solutions of the present invention, optionally, the first first-gear coil and the first second-gear coil have the same winding direction; the second first-gear coil and the second second-gear coil have the same winding direction.

[0025] In this technical solution, the first first-gear coil and the first second-gear coil have the same winding direction, so that the first first-gear coil and the first second-gear coil generate the same magnetic field direction when powered on. The second first-gear coil and the second second-gear coil have the same winding direction, so that the second first-gear coil and the second second-gear coil generate the same magnetic field direction when powered on.

[0026] A second aspect of the present invention provides a stator assembly, comprising a stator core and a coil assembly. The stator core comprises a plurality of stator slots arranged in a circumferential direction; the number of coil assemblies is multiple groups, and the multiple groups of coil assemblies are respectively arranged in the multiple stator slots, and the coil assembly comprises a plurality of coils, and the connection terminals of two adjacent coils in the plurality of coils are located in the same stator slot in the plurality of stator slots.

[0027] In this technical solution, the stator assembly includes a stator core and a coil assembly. The stator core includes a plurality of stator slots arranged in a circumferential direction to realize the arrangement of the plurality of stator slots. The number of coil assemblies is multiple groups, and the plurality of groups of coil assemblies are respectively arranged in the plurality of stator slots, so that the plurality of stator slots can provide installation space for the plurality of groups of coil assemblies. The coil assembly includes a plurality of gear coils, and the connection terminals of two adjacent gear coils in the plurality of gear coils are located in the same stator slot in the plurality of stator slots to realize the arrangement of the plurality of gear coils. By arranging the connection terminals of the two adjacent gear coils in one stator slot, the length of the wire required for connecting the two gear coils is shortened, and it is avoided that the connection terminals of the two adjacent gear coils are connected across the plurality of stator slots, thereby reducing the probability of wire damage.

[0028] In addition, the winding in the above technical solution provided by the present invention may also have the following additional technical features:

[0029] In some technical solutions of the present invention, optionally, the multi-gear coil includes a first-gear coil and a second-gear coil. The first-gear coil includes a first first-gear coil and a second first-gear coil; the second-gear coil includes a first second-gear coil and a second second-gear coil; wherein the first first-gear coil and the first second-gear coil are located in the same stator slot among a plurality of stator slots, and the second first-gear coil and the second second-gear coil are located in the same stator slot among a plurality of stator slots; the first end of the first first-gear coil is the wiring head end, the second end of the first first-gear coil is connected to the first end of the second first-gear coil, the second end of the second first-gear coil is connected to the first end of the second second-gear coil, and the second end of the second second-gear coil is connected to the first end of the first second-gear coil.

[0030] In this technical solution, the gear coil includes a first gear coil and a second gear coil. The first gear coil includes a first first gear coil and a second first gear coil, and the second gear coil includes a first second gear coil and a second second gear coil, so that the winding can adjust the gear position. The first first gear coil and the first second gear coil are located in the same stator slot among a plurality of stator slots to achieve the installation of the first first gear coil and the first second gear coil. The second first gear coil and the second second gear coil are located in the same stator slot among a plurality of stator slots to achieve the installation of the second first gear coil and the second second gear coil. The first end of the first first gear coil is the wiring head end, and the second end of the first first gear coil is connected to the first end of the second first gear coil to achieve the connection between the first first gear coil and the second first gear coil. The second end of the second first gear coil is connected to the first end of the second second gear coil to achieve the connection between the second first gear coil and the second second gear coil. The second end of the second second gear coil is connected to the first end of the first second gear coil to achieve the connection between the second second gear coil and the first second gear coil. By connecting the second end of the second first gear coil with the first end of the second second gear coil, the electromagnetic wire connecting the two gears can be located in the same stator slot, shortening the length of the wire required to connect the two gears and reducing the probability of wire damage.

[0031] In some technical solutions of the present invention, optionally, the multi-gear coil also includes a three-gear coil, and the three-gear coil includes a first three-gear coil and a second three-gear coil; wherein the first first-gear coil, the first second-gear coil and the first third-gear coil are located in the same stator slot among the multiple stator slots, and the second first-gear coil, the second second-gear coil and the second third-gear coil are located in the same stator slot among the multiple stator slots; the first end of the first three-gear coil is connected to the second end of the first second-gear coil, and the second end of the first three-gear coil is connected to the first end of the second third-gear coil.

[0032] In this technical solution, the multi-gear coil also includes a three-gear coil, and the three-gear coil includes a first three-gear coil and a second three-gear coil, so that the multi-gear coil can be adjusted to three gears, so as to adjust the working state of the motor. The first first-gear coil, the first second-gear coil and the first third-gear coil are located in the same stator slot among the multiple stator slots to achieve the installation of the first first-gear coil, the first second-gear coil and the first third-gear coil. The second first-gear coil, the second second-gear coil and the second third-gear coil are located in the same stator slot among the multiple stator slots to achieve the installation of the second first-gear coil, the second second-gear coil and the second third-gear coil. The first end of the first third-gear coil is connected to the second end of the first second-gear coil to achieve the connection between the first third-gear coil and the first second-gear coil, so that current can flow between the first third-gear coil and the first second-gear coil. The second end of the first third-gear coil is connected to the first end of the second third-gear coil to achieve the connection between the first third-gear coil and the second third-gear coil, so that current can flow between the first third-gear coil and the second third-gear coil. By connecting the first end of the first third gear coil with the second end of the first second gear coil, the electromagnetic wire connecting the two gears can be located in the same stator slot, shortening the length of the wire required to connect the two gears and reducing the probability of wire damage.

[0033] In some technical schemes of the present invention, optionally, the first-gear coil also includes a third-gear coil and a fourth-gear coil; the second-gear coil also includes a third-gear coil and a fourth-gear coil; the third-gear coil also includes a third-gear coil and a fourth-gear coil; wherein the third-gear coil, the third-gear coil and the third-gear coil are located in the same stator slot among the multiple stator slots, and the fourth-gear coil, the fourth-gear coil and the fourth-gear coil are located in the same stator slot among the multiple stator slots; the first end of the third-gear coil is connected to the second end of the second-gear coil, the second end of the third-gear coil is connected to the first end of the fourth-gear coil, the second end of the fourth-gear coil is connected to the first end of the fourth-gear coil, the second end of the fourth-gear coil is connected to the first end of the third-gear coil, the second end of the third-gear coil is connected to the first end of the second-gear coil, the second end of the second-gear coil is connected to the first end of the third-gear coil, the second end of the third-gear coil is connected to the first end of the fourth-gear coil, and the second end of the fourth-gear coil is the wiring tail.

[0034] In this technical solution, the first-gear coil also includes a third-gear coil and a fourth-gear coil; the second-gear coil also includes a third-gear coil and a fourth-gear coil, and the third-gear coil also includes a third-gear coil and a fourth-gear coil, so that the layout of the multi-gear coils is more reasonable, so as to improve the efficiency of the motor. The third-gear coil, the third-gear coil and the third-gear coil are located in the same stator slot among the multiple stator slots to realize the arrangement of the third-gear coil, the third-gear coil and the third-gear coil. The fourth-gear coil, the fourth-gear coil and the fourth-gear coil are located in the same stator slot among the multiple stator slots to realize the arrangement of the fourth-gear coil, the fourth-gear coil and the fourth-gear coil. The first end of the third-gear coil is connected to the second end of the second-gear coil, and the second end of the third-gear coil is connected to the first end of the fourth-gear coil to realize the connection between the third-gear coil and the second-gear coil and the fourth-gear coil respectively. The second end of the fourth-gear coil is connected to the first end of the fourth-gear coil to realize the connection between the fourth-gear coil and the fourth-gear coil. The second end of the fourth second gear coil is connected to the first end of the third second gear coil to achieve the connection between the fourth second gear coil and the third second gear coil. The second end of the second third gear coil is connected to the first end of the third third gear coil, the second end of the third third gear coil is connected to the first end of the fourth third gear coil, and the second end of the fourth third gear coil is the wiring tail end to achieve the connection between the second third gear coil, the third third gear coil and the fourth third gear coil, so that the winding has four groups of coils and can be adjusted in three gears.

[0035] In some technical solutions of the present invention, optionally, the second end of the fourth first-gear coil is a connection terminal of the first-gear coil, the first end of the fourth second-gear coil is a connection terminal of the second-gear coil, and the coil assembly further includes a first wire-passing portion and a first connection portion. The two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil; the first connection portion is connected to the first wire-passing portion; the second end of the fourth first-gear coil, the first end of the fourth second-gear coil, and the connection tail end are located in the same stator slot among the plurality of stator slots.

[0036] In this technical solution, the second end of the fourth first-gear coil is the connection terminal of the first-gear coil, so that the gear position of the coil assembly can be adjusted through the second end of the fourth first-gear coil. The first end of the fourth second-gear coil is the connection terminal of the second-gear coil, so that the gear position of the coil assembly can be adjusted through the first end of the fourth second-gear coil. The coil assembly also includes a first wire-passing portion and a first wiring portion. The two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil, so that the first wire-passing portion can serve as a connecting bridge between the fourth first-gear coil and the fourth second-gear coil, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The first wiring portion is connected to the first wire-passing portion to realize the installation of the first wiring portion, so that current can be transmitted between the first wiring portion and the first wire-passing portion, and the first wiring portion can be connected to an external circuit to transmit a corresponding air signal through the first wiring portion to adjust the gear position, thereby realizing the switching of the gear position. The second end of the fourth first gear coil, the first end of the fourth second gear coil and the terminal end are located in the same stator slot among the multiple stator slots, so that the stator slot can provide installation space for the terminal end, so that the electromagnetic wire connected between the two gears is located in the same stator slot.

[0037] In some technical solutions of the present invention, optionally, the second end of the first and second gear coil is the connection terminal of the second gear coil, the first end of the first and third gear coil is the connection terminal of the third gear coil, and the coil assembly further includes a second wire-passing portion and a second connection portion. The two ends of the second wire-passing portion are respectively connected to the second ends of the first and second gear coils and the first end of the first and third gear coils; the second connection portion is connected to the second wire-passing portion; the connection head end, the second ends of the first and second gear coils, and the first ends of the first and third gear coils are located in the same stator slot among the plurality of stator slots.

[0038] In this technical solution, the second end of the first and second gear coils is the connection terminal of the second gear coil, so that the gear position of the coil assembly can be adjusted through the second end of the first and second gear coils. The first end of the first and third gear coils is the connection terminal of the third gear coil, so that the gear position of the coil assembly can be adjusted through the first end of the first and third gear coils. The coil assembly also includes a second wire passing portion and a second connection portion. The two ends of the second wire passing portion are respectively connected to the second end of the first and second gear coils and the first end of the first and third gear coils; so that the second wire passing portion can serve as a connecting bridge between the first and second gear coils and the first and third gear coils, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second connection portion is connected to the second wire passing portion, so that current can be transmitted between the second wire passing portion, and the second connection portion can be connected to an external circuit to transmit a corresponding air signal through the first connection portion to adjust the gear position, thereby realizing the switching of the gear position. The wiring head end, the second end of the first and second gear coils and the first end of the first and third gear coils are located in the same stator slot among the multiple stator slots, so that the stator slot can provide an installation space for the wiring head end, so that the electromagnetic wire connected between the two gears is located in the same stator slot.

[0039] In some technical solutions of the present invention, optionally, the first first-gear coil, the second first-gear coil, the third first-gear coil and the fourth first-gear coil are arranged in sequence along the circumference of the stator core; the first second-gear coil, the second second-gear coil, the third second-gear coil and the fourth second-gear coil are arranged in sequence along the circumference of the stator core; the first third-gear coil, the second third-gear coil, the third third-gear coil and the fourth third-gear coil are arranged in sequence along the circumference of the stator core.

[0040] In this technical solution, the first first-gear coil, the second first-gear coil, the third first-gear coil and the fourth first-gear coil are arranged in sequence along the circumference of the stator core to realize the arrangement of the first first-gear coil, the second first-gear coil, the third first-gear coil and the fourth first-gear coil on the stator core, so that a uniform magnetic field distribution can be formed around the stator core. The first second-gear coil, the second second-gear coil, the third second-gear coil and the fourth second-gear coil are arranged in sequence along the circumference of the stator core to realize the arrangement of the first second-gear coil, the second second-gear coil, the third second-gear coil and the fourth second-gear coil on the stator core, so that a uniform magnetic field distribution can be formed around the stator core. The first third-gear coil, the second third-gear coil, the third third-gear coil and the fourth third-gear coil are arranged in sequence along the circumference of the stator core to realize the arrangement of the first third-gear coil, the second third-gear coil, the third third-gear coil and the fourth third-gear coil on the stator core, so that a uniform magnetic field distribution can be formed around the stator core.

[0041] The third aspect of the present invention provides a winding mold, which is used for the winding in any of the above technical solutions, and the winding mold includes a winding component and a wire hanging plate. The winding component includes at least two winding grooves, the first first-gear coil is wound in one of the at least two winding grooves, the first second-gear coil is wound on the first first-gear coil, the second first-gear coil is wound in another winding groove of the at least two winding grooves, and the second second-gear coil is wound on the second first-gear coil; the wire hanging plate includes a plate body and a wire hanging column, the plate body is arranged on the winding component, located on one side of the winding component, and the wire hanging column is arranged on the plate body; the second end of the second first-gear coil and / or the first end of the second second-gear coil are wound on the wire hanging column.

[0042] In this technical solution, a winding mold is used for winding, so that the winding can be wound through the winding mold. The winding mold includes a winding component and a wire hanging plate. The winding component includes at least two winding grooves, the first first-gear coil is wound in one of the at least two winding grooves, and the first second-gear coil is wound on the first first-gear coil, so that one winding groove can wind the first first-gear coil and the first second-gear coil. The second first-gear coil is wound in another winding groove of the at least two winding grooves, and the second second-gear coil is wound on the second first-gear coil, so that one winding groove can wind the second first-gear coil and the second second-gear coil. The wire hanging plate includes a plate body and a wire hanging column, and the plate body is arranged on the winding component, located on one side of the winding component, so as to realize the installation of the plate body, so as to facilitate the installation of the wire hanging plate on the winding component. The wire hanging column is arranged on the plate body to realize the installation of the wire hanging column. The second end of the second first-gear coil and / or the first end of the second second-gear coil is wound on the wire hanging pole. By arranging the second end of the second first-gear coil and / or the first end of the second second-gear coil on the wire hanging pole, it is convenient for the operator of the gear position to identify the different gears, thereby improving the production efficiency of the winding.

[0043] In addition, the winding mold in the above technical solution provided by the present invention may also have the following additional technical features:

[0044] In some technical schemes of the present invention, optionally, the number of wire hanging boards is at least two, and at least two wire hanging boards are respectively located on both sides of the winding component; the first wire passing portion of the winding is hung or wound on the wire hanging post of one of the at least two wire hanging boards; the second wire passing portion of the winding is hung or wound on the wire hanging post of another of the at least two wire hanging boards.

[0045] In this technical solution, there are at least two wire hanging plates, and at least two wire hanging plates are respectively located on both sides of the winding component to realize the arrangement of the two wire hanging plates. The first wire passing portion of the winding is hung or wound on the wire hanging column of one of the at least two wire hanging plates to realize the assembly of the first wire passing portion during winding, so that the operator can identify the gear position of the winding with the first wire passing portion. The second wire passing portion of the winding is hung or wound on the wire hanging column of another of the at least two wire hanging plates to realize the assembly of the second wire passing portion during winding, so that the operator can identify the gear position of the winding with the second wire passing portion.

[0046] In some technical solutions of the present invention, optionally, the length of the first wiring portion is different from the length of the second wiring portion; and / or the number of winding turns of the first wiring portion is different from the number of winding turns of the second wiring portion.

[0047] In this technical solution, the length of the first wiring part is different from the length of the second wiring part. The first wiring part and the second wiring part correspond to different gear adjustments respectively. By setting different lengths, the operator of the gear position can identify the corresponding gear according to the length of the first wiring part and the length of the second wiring part, thereby avoiding operator error. The number of windings of the first wiring part is different from the number of windings of the second wiring part, so that the first wiring part and the second wiring part are clearly distinguished visually, so that the operator of the gear position can identify the first wiring part and the second wiring part by observing the number of windings.

[0048] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0050] Figure 1 is one of the schematic diagrams of a winding according to an embodiment of the present invention;

[0051] Figure 2 is a second schematic diagram of a winding according to an embodiment of the present invention;

[0052] Figure 3 The third schematic diagram of a winding according to an embodiment of the present invention;

[0053] Figure 4 A fourth schematic diagram of a winding according to an embodiment of the present invention;

[0054] Figure 5 is a schematic diagram of a stator assembly according to an embodiment of the present invention;

[0055] Figure 6 Schematic diagram of a winding module according to an embodiment of the present invention.

[0056] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0057] 100 winding, 110 first coil assembly, 112 first first gear coil, 114 first second gear coil, 116 first third gear coil, 120 second coil assembly, 122 second first gear coil, 124 second second gear coil, 126 second third gear coil, 130 third coil assembly, 132 third first gear coil, 134 third second gear coil, 136 third third gear coil, 140 fourth coil assembly, 142 fourth first gear coil, 144 fourth second gear coil, 146 fourth third gear coil A gear coil, 150 a first wire passing portion, 160 a first connection portion, 170 a second wire passing portion, 180 a second connection portion, 182 a third wire passing portion, 184 a third connection portion, 200 a stator assembly, 210 a stator core, 220 a stator slot, 230 a coil assembly, 240 a coil, 242 a first gear coil, 244 a second gear coil, 246 a third gear coil, 300 a winding mold, 310 a winding component, 312 a winding slot, 320 a wire hanging plate, 322 a plate body, 324 a wire hanging column. DETAILED DESCRIPTION

[0058] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0059] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0060] Refer to the following Figures 1 to 6 A winding 100 , a stator assembly 200 , and a winding mold 300 according to some embodiments of the present invention are described.

[0061] like Figure 1 As shown, Figure 1This is one of the schematic diagrams of a winding 100 according to an embodiment of the present invention. In this embodiment, a winding 100 is provided, including a first coil assembly 110 and a second coil assembly 120. The first coil assembly 110 includes at least a first first-gear coil 112 and a first second-gear coil 114; the second coil assembly 120 includes at least a second first-gear coil 122 and a second second-gear coil 124; wherein, the first end of the first first-gear coil 112 is the connection head end of the first coil assembly 110, the second end of the first first-gear coil 112 is connected to the first end of the second first-gear coil 122, the second end of the second first-gear coil 122 is connected to the first end of the second second-gear coil 124, the second end of the second second-gear coil 124 is connected to the first end of the first second-gear coil 114, and the second end of the first second-gear coil 114 is the connection tail end of the second coil assembly 120.

[0062] In this embodiment, the winding 100 includes a first coil assembly 110 and a second coil assembly 120. The first coil assembly 110 includes at least a first first-gear coil 112 and a first second-gear coil 114, and the second coil assembly 120 includes at least a second first-gear coil 122 and a second second-gear coil 124, so that the winding 100 can adjust the gear position. The first end of the first first-gear coil 112 is the connection head end of the first coil assembly 110, and the second end of the first first-gear coil 112 is connected to the first end of the second first-gear coil 122 to achieve the connection between the first first-gear coil 112 and the second first-gear coil 122. The second end of the second first-gear coil 122 is connected to the first end of the second second-gear coil 124 to achieve the connection between the second first-gear coil 122 and the second second-gear coil 124. The second end of the second gear coil 124 is connected to the first end of the first gear coil 114, and the second end of the first gear coil 114 is the wiring tail end of the second coil assembly 120, so as to realize the connection between the second gear coil 124 and the first gear coil 114. In the present application, by connecting the second end of the second gear coil 122 with the first end of the second gear coil 124, that is, connecting the last coil of the first gear with the last coil of the second gear, the electromagnetic wire connected between the two gears can be located in the same wire slot, shortening the length of the wire required for connecting between the two gears, and reducing the probability of wire damage.

[0063] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0064] like Figure 2As shown, the winding 100 further includes a third coil assembly 130 and a fourth coil assembly 140. The third coil assembly 130 includes a third first-gear coil 132 and a third second-gear coil 134; the fourth coil assembly 140 includes a fourth first-gear coil 142 and a fourth second-gear coil 144; wherein the first end of the third first-gear coil 132 is connected to the second end of the second first-gear coil 122, the second end of the third first-gear coil 132 is connected to the first end of the fourth first-gear coil 142, the second end of the fourth first-gear coil 142 is connected to the first end of the fourth second-gear coil 144, the second end of the fourth second-gear coil 144 is connected to the first end of the third second-gear coil 134, and the second end of the third second-gear coil 134 is connected to the first end of the second second-gear coil 124.

[0065] In this embodiment, the winding 100 further includes a third coil assembly 130 and a fourth coil assembly 140. The third coil assembly 130 includes a third first-gear coil 132 and a third second-gear coil 134; the fourth coil assembly 140 includes a fourth first-gear coil 142 and a fourth second-gear coil 144. By providing the third coil assembly 130 and the fourth coil assembly 140, the layout of the winding 100 is more reasonable, so as to improve the efficiency of the motor. The first end of the third first-gear coil 132 is connected to the second end of the second first-gear coil 122, and the second end of the third first-gear coil 132 is connected to the first end of the fourth first-gear coil 142, so as to realize the connection between the third first-gear coil 132 and the second first-gear coil 122 and the fourth first-gear coil 142 respectively. The second end of the fourth first-gear coil 142 is connected to the first end of the fourth second-gear coil 144, so as to realize the connection between the fourth first-gear coil 142 and the fourth second-gear coil 144. The second end of the fourth second gear coil 144 is connected to the first end of the third second gear coil 134 to achieve the connection between the fourth second gear coil 144 and the third second gear coil 134. The second end of the third second gear coil 134 is connected to the first end of the second second gear coil 124 to achieve the connection between the third second gear coil 134 and the second second gear coil 124, so that the winding 100 has four groups of coils and a connection structure that can perform two-gear adjustment.

[0066] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0067] like Figure 3 As shown, Figure 3 This is the third schematic diagram of the winding 100 according to an embodiment of the present invention, the first coil assembly 110 also includes a first three-gear coil 116; the second coil assembly 120 also includes a second three-gear coil 126; wherein the first end of the first three-gear coil 116 is connected to the second end of the first two-gear coil 114, and the second end of the first three-gear coil 116 is connected to the first end of the second three-gear coil 126.

[0068] In this embodiment, the first coil assembly 110 further includes a first three-gear coil 116; the second coil assembly 120 further includes a second three-gear coil 126, so that the winding 100 can be adjusted in three gears, thereby changing its performance parameters to achieve different working state switching. The first end of the first three-gear coil 116 is connected to the second end of the first two-gear coil 114 to achieve the connection between the first three-gear coil 116 and the first two-gear coil 114, so that current can flow between the first three-gear coil 116 and the first two-gear coil 114. The second end of the first three-gear coil 116 is connected to the first end of the second three-gear coil 126 to achieve the connection between the first three-gear coil 116 and the second three-gear coil 126, so that current can flow between the first three-gear coil 116 and the second three-gear coil 126. By connecting the first end of the first three-gear coil 116 with the second end of the first two-gear coil 114, the electromagnetic wire connected between the two gears can be located in the same wire slot, shortening the length of the wire required for connecting between the two gears, and reducing the probability of wire damage.

[0069] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0070] like Figure 4 As shown, Figure 4 FIG. 4 is a fourth schematic diagram of a winding 100 according to an embodiment of the present invention. The winding 100 further includes a third coil assembly 130 and a fourth coil assembly 140 . The third coil assembly 130 includes a third first-gear coil 132, a third second-gear coil 134 and a third third-gear coil 136; the fourth coil assembly 140 includes a fourth first-gear coil 142, a fourth second-gear coil 144 and a fourth third-gear coil 146; wherein, the first end of the third first-gear coil 132 is connected to the second end of the second first-gear coil 122, the second end of the third first-gear coil 132 is connected to the first end of the fourth first-gear coil 142, the second end of the fourth first-gear coil 142 is connected to the first end of the fourth second-gear coil 144, the second end of the fourth second-gear coil 144 is connected to the first end of the third second-gear coil 134, the second end of the third second-gear coil 134 is connected to the first end of the second second-gear coil 124, the second end of the second third-gear coil 126 is connected to the first end of the third third-gear coil 136, the second end of the third third-gear coil 136 is connected to the first end of the fourth third-gear coil 146, and the second end of the fourth third-gear coil 146 is the connection tail end of the fourth coil assembly 140.

[0071] In this embodiment, the winding 100 further includes a third coil assembly 130 and a fourth coil assembly 140. The third coil assembly 130 includes a third first-gear coil 132, a third second-gear coil 134 and a third third-gear coil 136; the fourth coil assembly 140 includes a fourth first-gear coil 142, a fourth second-gear coil 144 and a fourth third-gear coil 146. By providing the third coil assembly 130 and the fourth coil assembly 140, the layout of the winding 100 is more reasonable, so as to improve the efficiency of the motor. The first end of the third first-gear coil 132 is connected to the second end of the second first-gear coil 122, and the second end of the third first-gear coil 132 is connected to the first end of the fourth first-gear coil 142, so as to realize the connection between the third first-gear coil 132 and the second first-gear coil 122 and the fourth first-gear coil 142 respectively. The second end of the fourth first-gear coil 142 is connected to the first end of the fourth second-gear coil 144, so as to realize the connection between the fourth first-gear coil 142 and the fourth second-gear coil 144. The second end of the third second gear coil 134 is connected to the first end of the second second gear coil 124, and the second end of the fourth second gear coil 144 is connected to the first end of the third second gear coil 134, so as to realize the connection between the fourth second gear coil 144 and the third second gear coil 134. The second end of the second third gear coil 126 is connected to the first end of the third third gear coil 136, and the second end of the third third gear coil 136 is connected to the first end of the fourth third gear coil 146. The second end of the fourth third gear coil 146 is the connection tail end of the fourth coil assembly 140, so as to realize the connection between the second third gear coil 126, the third third gear coil 136 and the fourth third gear coil 146, so that the winding 100 has four groups of coils and a connection structure that can be adjusted in three gears.

[0072] Specifically, the number of coil assemblies 230 is the same as the number of poles of the motor.

[0073] Specifically, the specific structure of the three-gear four-group coil of the winding 100 is that the first end of the third-gear coil 132 is connected to the second end of the second-gear coil 122, the second end of the third-gear coil 132 is connected to the first end of the fourth-gear coil 142, the second end of the fourth-gear coil 142 is connected to the first end of the fourth-gear coil 144, the second end of the fourth-gear coil 144 is connected to the first end of the third-gear coil 134, the second end of the third-gear coil 134 is connected to the first end of the second-gear coil 124, the second end of the second-gear coil 124 is connected to the first end of the first-gear coil 114, the first end of the first-gear coil 116 is connected to the second end of the first-gear coil 114, the second end of the first-gear coil 116 is connected to the first end of the second-gear coil 126, the second end of the second-gear coil 126 is connected to the first end of the third-gear coil 136, the second end of the third-gear coil 136 is connected to the first end of the fourth-gear coil 146, and the second end of the fourth-gear coil 146 is the connection tail.

[0074] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0075] The winding 100 includes at least one uninterrupted electromagnetic wire from the wiring head end to the wiring tail end.

[0076] In this embodiment, the winding 100 includes at least one uninterrupted electromagnetic wire from the wiring head end to the wiring tail end, so that the winding 100 can be wound continuously during winding. By winding the winding 100 continuously, the wiring heads of the winding 100 at different gears can be visualized, thereby improving the accuracy of winding and the production efficiency of the winding 100. In addition, at least one uninterrupted electromagnetic wire can also ensure the continuous transmission of current in the winding 100, avoiding current fluctuation or interruption caused by line interruption or poor contact, and the continuous electromagnetic wire can effectively generate and maintain the electromagnetic field.

[0077] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0078] like Figure 4 As shown, the winding 100 further includes a first wire-passing portion 150, a first connection portion 160, a second wire-passing portion 170, and a second connection portion 180. The two ends of the first wire-passing portion 150 are respectively connected to the second end of the fourth first-gear coil 142 and the first end of the fourth second-gear coil 144; the first connection portion 160 is connected to the first wire-passing portion 150; the two ends of the second wire-passing portion 170 are respectively connected to the second end of the first second-gear coil 114 and the first end of the first third-gear coil 116; the second connection portion 180 is connected to the second wire-passing portion 170.

[0079] In this embodiment, the winding 100 further includes a first wire-passing portion 150, a first wiring portion 160, a second wire-passing portion 170, and a second wiring portion 180. The two ends of the first wire-passing portion 150 are respectively connected to the second end of the fourth first-gear coil 142 and the first end of the fourth second-gear coil 144, so that the first wire-passing portion 150 can serve as a connecting bridge between the fourth first-gear coil 142 and the fourth second-gear coil 144, ensuring that current can be transmitted between the two coils, thereby realizing electrical connection between the coils. The first wiring portion 160 is connected to the first wire-passing portion 150 to realize the installation of the first wiring portion 160, so that current can be transmitted between the first wiring portion 160 and the first wire-passing portion 150, and the first wiring portion 160 can be connected to an external circuit to transmit a corresponding air signal through the first wiring portion 160 to adjust the gear position, thereby realizing the switching of the gear position. The two ends of the second wire-passing portion 170 are respectively connected to the second end of the first second gear coil 114 and the first end of the first third gear coil 116; so that the second wire-passing portion 170 can serve as a connecting bridge between the first second gear coil 114 and the first third gear coil 116, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second wiring portion 180 is connected to the second wire-passing portion 170, so that current can be transmitted between the second wiring portion 180 and the second wire-passing portion 170, and the second wiring portion 180 can be connected to an external circuit to transmit a corresponding air signal through the first wiring portion 160 to adjust the gear position, thereby realizing the switching of the gear position.

[0080] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0081] The length of the first wiring portion 160 is different from the length of the second wiring portion 180 ; and / or the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180 .

[0082] In this embodiment, the length of the first wiring part 160 is different from the length of the second wiring part 180. The first wiring part 160 and the second wiring part 180 correspond to different gear adjustments. By setting different lengths, the operator of the gear position can identify the corresponding gear according to the length of the first wiring part 160 and the length of the second wiring part 180, thereby avoiding operator misoperation. The number of windings of the first wiring part 160 is different from the number of windings of the second wiring part 180, so that the first wiring part 160 and the second wiring part 180 are visually clearly distinguished, so that the operator of the gear position can identify the first wiring part 160 and the second wiring part 180 by observing the number of windings.

[0083] Specifically, the length of the first wiring portion 160 is different from the length of the second wiring portion 180 , so that the gear position of the winding 100 can be identified by the lengths of the first wiring portion 160 and the second wiring portion 180 .

[0084] Specifically, the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180 , so that the gear position of the winding 100 can be identified by the number of winding turns of the first wiring portion 160 and the second wiring portion 180 .

[0085] Specifically, the length of the first wiring portion 160 is different from the length of the second wiring portion 180, and the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180. The gear position of the winding 100 is identified simultaneously by the length and the number of winding turns, thereby improving the accuracy of gear position identification.

[0086] Specifically, the present application utilizes the different lengths or winding numbers of the first connection part 160 and the second connection part 180 to enable the operator to identify the gear position of the winding 100, thereby eliminating the need to enhance the visualization of the gear position line of the winding 100 by marking the gear position line of the winding 100 during the winding process of the winding 100, and eliminating the need to distinguish the gear position of the winding 100 by detecting the resistance of the gear winding 100 during the production process of the stator assembly 200, thereby avoiding the problem of operators connecting the gear position line incorrectly, thereby improving the production efficiency of the winding 100, and further improving the production efficiency of the stator assembly 200.

[0087] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0088] like Figure 3 As shown, the winding 100 further includes a second wire-passing portion 170, a second connection portion 180, a third wire-passing portion 182 and a third connection portion 184. The two ends of the second wire-passing portion 170 are respectively connected to the second end of the first second-gear coil 114 and the first end of the first third-gear coil 116; the second connection portion 180 is connected to the second wire-passing portion 170; the two ends of the third wire-passing portion 182 are respectively connected to the second end of the second first-gear coil 122 and the first end of the second second-gear coil 124; the third connection portion 184 is connected to the third wire-passing portion 182.

[0089] In this embodiment, the two ends of the second wire-passing portion 170 are respectively connected to the second end of the first second gear coil 114 and the first end of the first third gear coil 116; so that the second wire-passing portion 170 can serve as a connecting bridge between the first second gear coil 114 and the first third gear coil 116, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second wiring portion 180 is connected to the second wire-passing portion 170, so that current can be transmitted between the second wiring portion 180 and the second wire-passing portion 170, and the second wiring portion 180 can be connected to an external circuit to transfer the corresponding air signal through the first wiring portion 160 to adjust the gear position, thereby realizing the switching of the gear position. The two ends of the third wire-passing portion 182 are respectively connected to the second end of the second first gear coil 122 and the first end of the second second gear coil 124, so that the third wire-passing portion 182 can serve as a connecting bridge between the second first gear coil 122 and the second second gear coil 124, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The third wiring portion 184 is connected to the third wire-passing portion 182 , and the third wiring portion 184 can be connected to an external circuit to transmit a corresponding air signal through the third wiring portion 184 to adjust the gear position, thereby achieving the switching of the gear position.

[0090] This embodiment provides a winding 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0091] The first first-gear coil 112 and the first second-gear coil 114 are wound in the same direction; the second first-gear coil 122 and the second second-gear coil 124 are wound in the same direction.

[0092] In this embodiment, the first first-gear coil 112 and the first second-gear coil 114 are wound in the same direction, so that the magnetic fields generated by the first first-gear coil 112 and the first second-gear coil 114 are in the same direction when energized. The second first-gear coil 122 and the second second-gear coil 124 are wound in the same direction, so that the magnetic fields generated by the second first-gear coil 122 and the second second-gear coil 124 are in the same direction when energized.

[0093] like Figure 5 As shown, Figure 5 Schematic diagram of a stator assembly 200 according to an embodiment of the present invention. In an embodiment of the present application, a stator assembly 200 is provided, comprising a stator core 210 and a coil assembly 230. The stator core 210 comprises a plurality of stator slots 220 arranged in a circumferential direction; the number of the coil assemblies 230 is a plurality of groups, and the plurality of groups of coil assemblies 230 are respectively arranged in a plurality of stator slots 220, and the coil assembly 230 comprises a plurality of coils 240, and the connection terminals of two adjacent coils 240 in the plurality of coils 240 are located in the same stator slot 220 in the plurality of stator slots 220.

[0094] In this embodiment, the stator assembly 200 includes a stator core 210 and a coil assembly 230. The stator core 210 includes a plurality of stator slots 220 arranged in the circumferential direction to realize the arrangement of the plurality of stator slots 220. The number of coil assemblies 230 is multiple groups, and the plurality of groups of coil assemblies 230 are respectively arranged in the plurality of stator slots 220, so that the plurality of stator slots 220 can provide installation space for the plurality of groups of coil assemblies 230. The coil assembly 230 includes a plurality of gear coils 240, and the connection terminals of two adjacent gear coils 240 in the plurality of gear coils 240 are located in the same stator slot 220 in the plurality of stator slots 220 to realize the arrangement of the plurality of gear coils 240. By arranging the connection terminals of the two adjacent gear coils 240 in one stator slot 220, the length of the wire required for connecting the two gear coils 240 is shortened, and it is avoided that the connection terminals of the two adjacent gear coils 240 are connected across the plurality of stator slots 220, thereby reducing the probability of wire damage.

[0095] Specifically, the number of the coil assemblies 230 is four.

[0096] Specifically, the number of the stator slots 220 is 16.

[0097] Specifically, in Figure 5 , arrow D indicates the circumferential direction of the stator core 210 .

[0098] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0099] The multi-gear coil 240 includes a first-gear coil 242 and a second-gear coil 244. The first-gear coil 242 includes a first first-gear coil 112 and a second first-gear coil 122; the second-gear coil 244 includes a first second-gear coil 114 and a second second-gear coil 124; wherein the first first-gear coil 112 and the first second-gear coil 114 are located in the same stator slot 220 among the plurality of stator slots 220, and the second first-gear coil 122 and the second second-gear coil 124 are located in the same stator slot 220 among the plurality of stator slots 220; the first end of the first first-gear coil 112 is the connection head end, the second end of the first first-gear coil 112 is connected to the first end of the second first-gear coil 122, the second end of the second first-gear coil 122 is connected to the first end of the second second-gear coil 124, and the second end of the second second-gear coil 124 is connected to the first end of the first second-gear coil 114.

[0100] In this embodiment, the gear coil includes a first gear coil 242 and a second gear coil 244. The first gear coil 242 includes a first first gear coil 112 and a second first gear coil 122, and the second gear coil 244 includes a first second gear coil 114 and a second second gear coil 124, so that the winding 100 can adjust the gear position. The first first gear coil 112 and the first second gear coil 114 are located in the same stator slot 220 among the plurality of stator slots 220 to achieve the installation of the first first gear coil 112 and the first second gear coil 114. The second first gear coil 122 and the second second gear coil 124 are located in the same stator slot 220 among the plurality of stator slots 220 to achieve the installation of the second first gear coil 122 and the second second gear coil 124. The first end of the first first gear coil 112 is the wiring head end, and the second end of the first first gear coil 112 is connected to the first end of the second first gear coil 122 to achieve the connection between the first first gear coil 112 and the second first gear coil 122. The second end of the second first gear coil 122 is connected to the first end of the second second gear coil 124 to achieve the connection between the second first gear coil 122 and the second second gear coil 124. The second end of the second second gear coil 124 is connected to the first end of the first second gear coil 114 to achieve the connection between the second second gear coil 124 and the first second gear coil 114. By connecting the second end of the second first gear coil 122 to the first end of the second second gear coil 124, the electromagnetic wire connected between the two gears can be located in the same stator slot 220, shortening the length of the wire required for connecting between the two gears and reducing the probability of wire damage.

[0101] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0102] like Figure 5 As shown, the multi-gear coil 240 also includes a three-gear coil 246, and the three-gear coil 246 includes a first three-gear coil 116 and a second three-gear coil 126; wherein, the first first-gear coil 112, the first second-gear coil 114 and the first third-gear coil 116 are located in the same stator slot 220 among the multiple stator slots 220, and the second first-gear coil 122, the second second-gear coil 124 and the second third-gear coil 126 are located in the same stator slot 220 among the multiple stator slots 220; the first end of the first three-gear coil 116 is connected to the second end of the first second-gear coil 114, and the second end of the first three-gear coil 116 is connected to the first end of the second three-gear coil 126.

[0103] In this embodiment, the multi-gear coil 240 also includes a three-gear coil 246, and the three-gear coil 246 includes a first three-gear coil 116 and a second three-gear coil 126, so that the multi-gear coil 240 can be adjusted to three gears, so as to adjust the working state of the motor. The first first-gear coil 112, the first second-gear coil 114, and the first third-gear coil 116 are located in the same stator slot 220 among the multiple stator slots 220 to achieve the installation of the first first-gear coil 112, the first second-gear coil 114, and the first third-gear coil 116. The second first-gear coil 122, the second second-gear coil 124, and the second third-gear coil 126 are located in the same stator slot 220 among the multiple stator slots 220 to achieve the installation of the second first-gear coil 122, the second second-gear coil 124, and the second third-gear coil 126. The first end of the first three-gear coil 116 is connected to the second end of the first two-gear coil 114 to achieve connection between the first three-gear coil 116 and the first two-gear coil 114, so that current can flow between the first three-gear coil 116 and the first two-gear coil 114. The second end of the first three-gear coil 116 is connected to the first end of the second three-gear coil 126 to achieve connection between the first three-gear coil 116 and the second three-gear coil 126, so that current can flow between the first three-gear coil 116 and the second three-gear coil 126. By connecting the first end of the first three-gear coil 116 to the second end of the first two-gear coil 114, the electromagnetic wire connected between the two gears can be located in the same stator slot 220, shortening the length of the wire required for connecting between the two gears and reducing the probability of wire damage.

[0104] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0105] The first gear coil 242 also includes a third first gear coil 132 and a fourth first gear coil 142; the second gear coil 244 also includes a third second gear coil 134 and a fourth second gear coil 144; the third gear coil 246 also includes a third third gear coil 136 and a fourth third gear coil 146; wherein the third first gear coil 132, the third second gear coil 134 and the third third gear coil 136 are located in the same stator slot 220 among the plurality of stator slots 220, and the fourth first gear coil 142, the fourth second gear coil 144 and the fourth third gear coil 146 are located in the same stator slot 220 among the plurality of stator slots 220; the first end of the third first gear coil 132 is connected to the second first gear coil 134. The second end of the gear coil 122 is connected, the second end of the third gear coil 132 is connected to the first end of the fourth gear coil 142, the second end of the fourth gear coil 142 is connected to the first end of the fourth second gear coil 144, the second end of the fourth second gear coil 144 is connected to the first end of the third second gear coil 134, the second end of the third second gear coil 134 is connected to the first end of the second second gear coil 124, the second end of the second third gear coil 126 is connected to the first end of the third third gear coil 136, the second end of the third third gear coil 136 is connected to the first end of the fourth third gear coil 146, and the second end of the fourth third gear coil 146 is the wiring tail end.

[0106] In this embodiment, the first gear coil 242 also includes the third first gear coil 132 and the fourth first gear coil 142; the second gear coil 244 also includes the third second gear coil 134 and the fourth second gear coil 144, and the third gear coil 246 also includes the third third gear coil 136 and the fourth third gear coil 146, so that the layout of the multi-gear coil 240 is more reasonable, so as to improve the efficiency of the motor. The third first gear coil 132, the third second gear coil 134 and the third third gear coil 136 are located in the same stator slot 220 among the plurality of stator slots 220 to realize the arrangement of the third first gear coil 132, the third second gear coil 134 and the third third gear coil 136. The fourth first gear coil 142, the fourth second gear coil 144 and the fourth third gear coil 146 are located in the same stator slot 220 among the plurality of stator slots 220 to realize the arrangement of the fourth first gear coil 142, the fourth second gear coil 144 and the fourth third gear coil 146. The first end of the third first-gear coil 132 is connected to the second end of the second first-gear coil 122, and the second end of the third first-gear coil 132 is connected to the first end of the fourth first-gear coil 142, so as to realize the connection between the third first-gear coil 132 and the second first-gear coil 122 and the fourth first-gear coil 142 respectively. The second end of the fourth first-gear coil 142 is connected to the first end of the fourth second-gear coil 144, so as to realize the connection between the fourth first-gear coil 142 and the fourth second-gear coil 144. The second end of the fourth second-gear coil 144 is connected to the first end of the third second-gear coil 134, so as to realize the connection between the fourth second-gear coil 144 and the third second-gear coil 134. The second end of the second third-gear coil 126 is connected to the first end of the third third-gear coil 136, the second end of the third third-gear coil 136 is connected to the first end of the fourth third-gear coil 146, and the second end of the fourth third-gear coil 146 is the wiring tail end to achieve the connection between the second third-gear coil 126, the third third-gear coil 136 and the fourth third-gear coil 146, so that the winding 100 has four groups of coils and a connection structure that can be adjusted in three gears.

[0107] Specifically, the specific structure of the three-gear four-group coil of the winding 100 is that the first end of the third-gear coil 132 is connected to the second end of the second-gear coil 122, the second end of the third-gear coil 132 is connected to the first end of the fourth-gear coil 142, the second end of the fourth-gear coil 142 is connected to the first end of the fourth-gear coil 144, the second end of the fourth-gear coil 144 is connected to the first end of the third-gear coil 134, the second end of the third-gear coil 134 is connected to the first end of the second-gear coil 124, the second end of the second-gear coil 124 is connected to the first end of the first-gear coil 114, the first end of the first-gear coil 116 is connected to the second end of the first-gear coil 114, the second end of the first-gear coil 116 is connected to the first end of the second-gear coil 126, the second end of the second-gear coil 126 is connected to the first end of the third-gear coil 136, the second end of the third-gear coil 136 is connected to the first end of the fourth-gear coil 146, and the second end of the fourth-gear coil 146 is the connection tail.

[0108] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0109] The second end of the fourth first-gear coil 142 is the connection terminal of the first-gear coil 242, the first end of the fourth second-gear coil 144 is the connection terminal of the second-gear coil 244, and the coil assembly 230 further includes a first wire-passing portion 150 and a first connection portion 160. The two ends of the first wire-passing portion 150 are respectively connected to the second end of the fourth first-gear coil 142 and the first end of the fourth second-gear coil 144; the first connection portion 160 is connected to the first wire-passing portion 150; the second end of the fourth first-gear coil 142, the first end of the fourth second-gear coil 144 and the connection tail end are located in the same stator slot 220 among the plurality of stator slots 220.

[0110] In this embodiment, the second end of the fourth first-gear coil 142 is the connection terminal of the first-gear coil 242, so that the gear position of the coil assembly 230 can be adjusted through the second end of the fourth first-gear coil 142. The first end of the fourth second-gear coil 144 is the connection terminal of the second-gear coil 244, so that the gear position of the coil assembly 230 can be adjusted through the first end of the fourth second-gear coil 144. The coil assembly 230 also includes a first wire-passing portion 150 and a first wiring portion 160. The two ends of the first wire-passing portion 150 are respectively connected to the second end of the fourth first-gear coil 142 and the first end of the fourth second-gear coil 144, so that the first wire-passing portion 150 can serve as a connecting bridge between the fourth first-gear coil 142 and the fourth second-gear coil 144, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The first wiring portion 160 is connected to the first wire-passing portion 150 to realize the installation of the first wiring portion 160, so that current can be transmitted between the first wiring portion 160 and the first wire-passing portion 150, and the first wiring portion 160 can be connected to an external circuit to transmit a corresponding air signal through the first wiring portion 160 to adjust the gear position, thereby realizing the switching of the gear position. The second end of the fourth first gear coil 142, the first end of the fourth second gear coil 144 and the wiring tail end are located in the same stator slot 220 among the multiple stator slots 220, so that the stator slot 220 can provide an installation space for the wiring tail end, so that the electromagnetic wires connected between the two gears are located in the same stator slot 220.

[0111] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0112] The second end of the first second gear coil 114 is the connection terminal of the second gear coil 244, the first end of the first third gear coil 116 is the connection terminal of the third gear coil 246, and the coil assembly 230 further includes a second wire-passing portion 170 and a second connection portion 180. The two ends of the second wire-passing portion 170 are respectively connected to the second end of the first second gear coil 114 and the first end of the first third gear coil 116; the second connection portion 180 is connected to the second wire-passing portion 170; the connection head end, the second end of the first second gear coil 114 and the first end of the first third gear coil 116 are located in the same stator slot 220 among the plurality of stator slots 220.

[0113] In this embodiment, the second end of the first second gear coil 114 is the connection terminal of the second gear coil 244, so that the gear position of the coil assembly 230 can be adjusted through the second end of the first second gear coil 114. The first end of the first third gear coil 116 is the connection terminal of the third gear coil 246, so that the gear position of the coil assembly 230 can be adjusted through the first end of the first third gear coil 246. The coil assembly 230 also includes a second wire passing portion 170 and a second connection portion 180. The two ends of the second wire passing portion 170 are respectively connected to the second end of the first second gear coil 114 and the first end of the first third gear coil 116; so that the second wire passing portion 170 can serve as a connecting bridge between the first second gear coil 114 and the first third gear coil 116, ensuring that current can be transmitted between the two coils, and realizing electrical connection between the coils. The second wiring portion 180 is connected to the second wire-passing portion 170, so that current can be transmitted between the second wiring portion 180 and the second wire-passing portion 170, and the second wiring portion 180 can be connected to an external circuit to transfer a corresponding air signal through the first wiring portion 160 to adjust the gear position, thereby realizing the switching of the gear position. The wiring head end, the second end of the first and second gear coils 114, and the first end of the first and third gear coils 116 are located in the same stator slot 220 among the multiple stator slots 220, so that the stator slot 220 can provide an installation space for the wiring head end, so that the electromagnetic wires connected between the two gears are located in the same stator slot 220.

[0114] This embodiment provides a stator assembly 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0115] The first first-gear coil 112, the second first-gear coil 122, the third first-gear coil 132 and the fourth first-gear coil 142 are arranged in sequence along the circumference of the stator core 210; the first second-gear coil 114, the second second-gear coil 124, the third second-gear coil 134 and the fourth second-gear coil 144 are arranged in sequence along the circumference of the stator core 210; the first third-gear coil 116, the second third-gear coil 126, the third third-gear coil 136 and the fourth third-gear coil 146 are arranged in sequence along the circumference of the stator core 210.

[0116] In this embodiment, the first first-gear coil 112, the second first-gear coil 122, the third first-gear coil 132 and the fourth first-gear coil 142 are sequentially arranged along the circumference of the stator core 210 to realize the arrangement of the first first-gear coil 112, the second first-gear coil 122, the third first-gear coil 132 and the fourth first-gear coil 142 on the stator core 210, so that a uniform magnetic field distribution can be formed around the stator core 210. The first second-gear coil 114, the second second-gear coil 124, the third second-gear coil 134 and the fourth second-gear coil 144 are sequentially arranged along the circumference of the stator core 210 to realize the arrangement of the first second-gear coil 114, the second second-gear coil 124, the third second-gear coil 134 and the fourth second-gear coil 144 on the stator core 210, so that a uniform magnetic field distribution can be formed around the stator core 210. The first three-gear coil 116, the second three-gear coil 126, the third three-gear coil 136 and the fourth three-gear coil 146 are arranged in sequence along the circumference of the stator core 210 to realize the arrangement of the first three-gear coil 116, the second three-gear coil 126, the third three-gear coil 136 and the fourth three-gear coil 146 on the stator core 210, so that a uniform magnetic field distribution can be formed around the stator core 210.

[0117] like Figure 6 As shown, Figure 6 This is a schematic diagram of a winding mold 300 according to an embodiment of the present invention. In an embodiment of the present application, a winding mold 300 is provided. The winding mold 300 is used for the winding 100 in any of the above embodiments. The winding mold 300 includes a winding component 310 and a wire hanging plate 320. The winding component 310 includes at least two winding grooves 312, the first first-gear coil 112 is wound in one of the at least two winding grooves 312, the first second-gear coil 114 is wound on the first first-gear coil 112, the second first-gear coil 122 is wound in the other winding groove 312 of the at least two winding grooves 312, and the second second-gear coil 124 is wound on the second first-gear coil 122; the hanging plate 320 includes a plate body 322 and a hanging pole 324, the plate body 322 is arranged on the winding component 310, located on one side of the winding component 310, and the hanging pole 324 is arranged on the plate body 322; the second end of the second first-gear coil 122 and / or the first end of the second second-gear coil 124 are wound around the hanging pole 324.

[0118] In this embodiment, the winding mold 300 is used for the winding 100, so that the winding 100 can be wound by the winding mold 300. The winding mold 300 includes a winding component 310 and a wire hanging plate 320. The winding component 310 includes at least two winding grooves 312, the first first-gear coil 112 is wound in one of the at least two winding grooves 312, and the first second-gear coil 114 is wound on the first first-gear coil 112, so that one winding groove 312 can wind the first first-gear coil 112 and the first second-gear coil 114. The second first-gear coil 122 is wound in another winding groove 312 of the at least two winding grooves 312, and the second second-gear coil 124 is wound on the second first-gear coil 122, so that one winding groove 312 can wind the second first-gear coil 122 and the second second-gear coil 124. The wire hanging plate 320 includes a plate body 322 and a wire hanging post 324. The plate body 322 is arranged on the winding component 310 and is located on one side of the winding component 310 to realize the installation of the plate body 322, so as to facilitate the installation of the wire hanging plate 320 on the winding component 310. The wire hanging post 324 is arranged on the plate body 322 to realize the installation of the wire hanging post 324. The second end of the second first gear coil 122 and / or the first end of the second second gear coil 124 are wound around the wire hanging post 324. By arranging the second end of the second first gear coil 122 and / or the first end of the second second gear coil 124 on the wire hanging post 324, it is convenient for the operator of the gear position to identify the different gear positions, thereby improving the production efficiency of the winding 100.

[0119] Specifically, the second end of the second first-gear coil 122 is wound around the wire hanging pole 324 to facilitate the operator of the gear position to identify different gear positions, thereby improving the production efficiency of the winding 100.

[0120] Specifically, the first end of the second second-gear coil 124 is wound around the wire hanging pole 324 , so that the operator of the gear position can identify the different gear positions, thereby improving the production efficiency of the winding 100 .

[0121] Specifically, the second end of the second first-gear coil 122 and the first end of the second second-gear coil 124 are wound around the wire hanging pole 324 , so that the operator of the gear position can identify different gear positions, thereby improving the production efficiency of the winding 100 .

[0122] Specifically, the winding component 310 includes two winding grooves 312, the first gear coil 112 is wound in one of the two winding grooves 312, the first second gear coil 114 is wound on the first gear coil 112, the second gear coil 122 is wound in the other winding groove 312 of the two winding grooves 312, and the second second gear coil 124 is wound on the second first gear coil 122.

[0123] Specifically, the winding component 310 includes two winding grooves 312, the first gear coil 112 is wound in one of the two winding grooves 312, the first second gear coil 114 is wound on the first gear coil 112, the second gear coil 122 is wound in the other winding groove 312 of the two winding grooves 312, and the second second gear coil 124 is wound on the second first gear coil 122.

[0124] Specifically, the winding component 310 includes two winding grooves 312, and the three winding grooves 312 are arranged in sequence. The first first-gear coil 112 is wound in one of the two winding grooves 312, the first second-gear coil 114 is wound on the first first-gear coil 112, and the first third-gear coil 116 is wound on the first second-gear coil 114. The second first-gear coil 122 is wound in the other winding groove 312 of the two winding grooves 312, the second second-gear coil 124 is wound on the second first-gear coil 122, and the second third-gear coil 126 is wound on the second second-gear coil 124.

[0125] Specifically, the winding component 310 includes four winding grooves 312, which are arranged in sequence. The first first-gear coil 112 is wound in the first winding groove 312 of the four winding grooves 312, the first second-gear coil 114 is wound on the first first-gear coil 112, and the first third-gear coil 116 is wound on the first second-gear coil 114. The second first-gear coil 122 is wound in the second winding groove 312 of the four winding grooves 312, the second second-gear coil 124 is wound on the second first-gear coil 122, and the second third-gear coil 126 is wound on the second second-gear coil 124. The third first-gear coil 132 is wound in the third winding groove 312 of the four winding grooves 312, the third second-gear coil 134 is wound on the third first-gear coil 132, and the third third-gear coil 136 is wound on the third second-gear coil 134. The fourth first-gear coil 142 is wound in a fourth winding groove 312 among the four winding grooves 312 , the fourth second-gear coil 144 is wound on the fourth first-gear coil 142 , and the fourth third-gear coil 146 is wound on the fourth second-gear coil 144 .

[0126] Specifically, in Figure 4 , Figure 5 and Figure 6 In the figure, A represents the first end of the first gear coil 112; a represents the second end of the fourth gear coil 142; B represents the first end of the fourth gear coil 144; b represents the second end of the first gear coil 114; C represents the first end of the first gear coil 116; and c represents the second end of the fourth gear coil 146.

[0127] This embodiment provides a winding mold 300. In addition to the technical features of the above-mentioned embodiment, this embodiment further includes the following technical features.

[0128] like Figure 6 As shown, the number of wire hanging plates 320 is at least two, and at least two wire hanging plates 320 are respectively located on both sides of the winding component 310; the first wire passing portion 150 of the winding 100 is hung or wound on the wire hanging column 324 of one of the at least two wire hanging plates 320; the second wire passing portion 170 of the winding 100 is hung or wound on the wire hanging column 324 of another of the at least two wire hanging plates 320.

[0129] In this embodiment, there are at least two wire hanging plates 320, and at least two wire hanging plates 320 are respectively located on both sides of the winding component 310 to realize the arrangement of the two wire hanging plates 320. The first wire passing portion 150 of the winding 100 is hung or wound on the wire hanging column 324 of one of the at least two wire hanging plates 320 to realize the assembly of the first wire passing portion 150 during winding, so that the operator can identify the gear position of the winding 100 by using the first wire passing portion 150. The second wire passing portion 170 of the winding 100 is hung or wound on the wire hanging column 324 of another of the at least two wire hanging plates 320 to realize the assembly of the second wire passing portion 170 during winding, so that the operator can identify the gear position of the winding 100 by using the second wire passing portion 170.

[0130] Specifically, the first wire-passing portion 150 of the winding 100 is hung on a wire-hanging pole 324 of one of the at least two wire-hanging plates 320 .

[0131] Specifically, the second wire passing portion 170 of the winding 100 is wound around the wire hanging pole 324 of another wire hanging plate 320 among the at least two wire hanging plates 320 .

[0132] Specifically, the first wire-passing portion 150 of the winding 100 is hung on a wire-hanging pole 324 of one of the at least two wire-hanging plates 320 .

[0133] Specifically, the second wire passing portion 170 of the winding 100 is wound around the wire hanging pole 324 of another wire hanging plate 320 among the at least two wire hanging plates 320 .

[0134] This embodiment provides a winding mold 300. In addition to the technical features of the above-mentioned embodiment, this embodiment further includes the following technical features.

[0135] The length of the first wiring portion 160 is different from the length of the second wiring portion 180 ; and / or the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180 .

[0136] In this embodiment, the length of the first wiring part 160 is different from the length of the second wiring part 180. The first wiring part 160 and the second wiring part 180 correspond to different gear adjustments. By setting different lengths, the operator of the gear position can identify the corresponding gear according to the length of the first wiring part 160 and the length of the second wiring part 180, thereby avoiding operator misoperation. The number of windings of the first wiring part 160 is different from the number of windings of the second wiring part 180, so that the first wiring part 160 and the second wiring part 180 are visually clearly distinguished, so that the operator of the gear position can identify the first wiring part 160 and the second wiring part 180 by observing the number of windings.

[0137] Specifically, by utilizing the different lengths or winding numbers of the first connection portion 160 and the second connection portion 180, the operator can identify the gear position of the winding 100, thereby eliminating the need to enhance the visualization of the gear position line of the winding 100 by marking the gear position line of the winding 100 during the winding process of the winding 100, and eliminating the need to distinguish the gear position of the winding 100 by detecting the resistance of the gear winding 100 during the production process of the stator assembly 200, thereby avoiding the problem of operators connecting the gear position line incorrectly, thereby improving the production efficiency of the winding 100, and further improving the production efficiency of the stator assembly 200.

[0138] Specifically, the length of the first wiring portion 160 is different from the length of the second wiring portion 180 , so that the gear position of the winding 100 can be identified by the lengths of the first wiring portion 160 and the second wiring portion 180 .

[0139] Specifically, the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180 , so that the gear position of the winding 100 can be identified by the number of winding turns of the first wiring portion 160 and the second wiring portion 180 .

[0140] Specifically, the length of the first wiring portion 160 is different from the length of the second wiring portion 180, and the number of winding turns of the first wiring portion 160 is different from the number of winding turns of the second wiring portion 180. The gear position of the winding 100 is identified simultaneously by the length and the number of winding turns, thereby improving the accuracy of gear position identification.

[0141] Specifically, the winding 100 is a stepped winding, and the winding mold 300 of the present application winds the winding 100 by setting a hanging board 320 on both sides of the winding component 310, and winding the second end of the second first-speed coil 122 and / or the first end of the second second-speed coil 124 around the hanging pole 324. When the first-speed winding 100 is bent, the stepped wire ends of the winding 100 are not cut off, and a certain length of wire ends are wound around the hanging pole 324. On the basis of not changing the rotation direction of the winding component 310, the lower-layer stepped winding of the same phase winding 100 is directly wound. Through uninterrupted winding, the visualization of the terminal ends of the stepped winding 100 is ensured. At the same time, the gear position is identified by controlling the connection length of different stepped positions through the different number of winding turns of the terminal ends in the hanging board 320. The winding component 310 of the present application is used to wind the multi-stage layered winding 100, which can effectively improve the production efficiency of the layered winding in the embedded stator production stage for the AC speed regulating motor with the layered winding 100, and there is no need for a meter-grading personnel for the layered winding. The meter-grading means detecting the resistance of the stage winding 100, and the problem of wrong connection of the layered winding is eliminated from the root. At the same time, the layered wires are wired out of the same slot, avoiding the connection head of the winding 100 that crosses the slot and the wire, and avoiding the generation of bad connection head problems. At the same time, there is no need to distinguish the layered gears of the winding 100 from the resistance value of the layered winding, which reduces the operability of the motor's layered winding.

[0142] In the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limiting the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0143] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0144] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A winding, characterized in that: include: A first coil assembly, the first coil assembly at least comprising a first first-gear coil and a first second-gear coil; A second coil assembly, the second coil assembly at least comprising a second first-gear coil and a second second-gear coil; Among them, the first end of the first-gear coil is the wiring beginning end of the first coil assembly, the second end of the first-gear coil is connected to the first end of the second-gear coil, the second end of the second-gear coil is connected to the first end of the second-gear coil, the second end of the second-gear coil is connected to the first end of the first-gear coil, and the second end of the first-gear coil is the wiring end end of the second coil assembly.

2. The winding according to claim 1, characterized in that Also includes: A third coil assembly, the third coil assembly comprising a third first-gear coil and a third second-gear coil; a fourth coil assembly, the fourth coil assembly comprising a fourth first-gear coil and a fourth second-gear coil; Among them, the first end of the third first-gear coil is connected to the second end of the second first-gear coil, the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, the second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil, the second end of the fourth second-gear coil is connected to the first end of the third second-gear coil, and the second end of the third second-gear coil is connected to the first end of the second second-gear coil.

3. The winding according to claim 1, characterized in that The first coil assembly also includes a first third-gear coil; The second coil assembly also includes a second third gear coil; The first end of the first three-gear coil is connected to the second end of the first two-gear coil, and the second end of the first three-gear coil is connected to the first end of the second three-gear coil.

4. The winding according to claim 3, characterized in that Also includes: A third coil assembly, the third coil assembly comprising a third first gear coil, a third second gear coil and a third third gear coil; a fourth coil assembly, the fourth coil assembly comprising a fourth first-gear coil, a fourth second-gear coil and a fourth third-gear coil; Among them, the first end of the third first-gear coil is connected to the second end of the second first-gear coil, the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, the second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil, the second end of the fourth second-gear coil is connected to the first end of the third second-gear coil, the second end of the third second-gear coil is connected to the first end of the second second-gear coil, the second end of the second third-gear coil is connected to the first end of the third third-gear coil, the second end of the third third-gear coil is connected to the first end of the fourth third-gear coil, and the second end of the fourth third-gear coil is the connection tail end of the fourth coil assembly.

5. The winding according to claim 4, characterized in that The winding includes at least one uninterrupted electromagnetic wire from the wiring head end to the wiring tail end.

6. The winding according to claim 4, characterized in that Also includes: a first wire-passing portion, wherein two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil; a first wiring portion, the first wiring portion being connected to the first wire-passing portion; a second wire-passing portion, two ends of which are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; A second wiring portion, wherein the second wiring portion is connected to the second line passing portion.

7. The winding according to claim 6, characterized in that The length of the first wiring portion is different from the length of the second wiring portion; and / or The number of winding turns of the first wiring portion is different from the number of winding turns of the second wiring portion.

8. The winding according to claim 3, characterized in that Also includes: a second wire-passing portion, two ends of which are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; a second wiring portion, the second wiring portion being connected to the second wire passing portion; a third wire-passing portion, two ends of which are respectively connected to the second end of the second first-gear coil and the first end of the second second-gear coil; A third wiring portion is connected to the third line passing portion.

9. The winding according to any one of claims 1 to 8, characterized in that The first gear coil and the first gear coil are wound in the same direction; The second first-gear coil and the second second-gear coil are wound in the same direction.

10. A stator assembly, characterized in that: include: A stator core, the stator core comprising a plurality of stator slots arranged along a circumferential direction; The coil assembly comprises a plurality of groups of coil assemblies, and the plurality of groups of coil assemblies are respectively arranged in the plurality of stator slots. The coil assembly comprises a plurality of coils, and the connection terminals of two adjacent coils in the plurality of coils are located in the same stator slot in the plurality of stator slots.

11. The stator assembly according to claim 10, characterized in that The multi-stage coils include: A first-gear coil, the first-gear coil comprising a first first-gear coil and a second first-gear coil; A second-gear coil, the second-gear coil comprising a first second-gear coil and a second second-gear coil; Wherein, the first first gear coil and the first second gear coil are located in the same stator slot among the plurality of stator slots, and the second first gear coil and the second second gear coil are located in the same stator slot among the plurality of stator slots; The first end of the first gear coil is the connection head end, the second end of the first gear coil is connected to the first end of the second gear coil, the second end of the second gear coil is connected to the first end of the second gear coil, and the second end of the second gear coil is connected to the first end of the first gear coil.

12. The stator assembly according to claim 11, characterized in that The multi-stage coil also includes: Three-gear coils, the three-gear coils comprising a first third-gear coil and a second third-gear coil; Wherein, the first first gear coil, the first second gear coil and the first third gear coil are located in the same stator slot among the plurality of stator slots, and the second first gear coil, the second second gear coil and the second third gear coil are located in the same stator slot among the plurality of stator slots; The first end of the first three-gear coil is connected to the second end of the first two-gear coil, and the second end of the first three-gear coil is connected to the first end of the second three-gear coil.

13. The stator assembly according to claim 12, characterized in that The first gear coil also includes a third first gear coil and a fourth first gear coil; The second gear coil also includes a third second gear coil and a fourth second gear coil; The three-gear coil also includes a third third-gear coil and a fourth third-gear coil; Wherein, the third first-gear coil, the third second-gear coil and the third third-gear coil are located in the same stator slot among the plurality of stator slots, and the fourth first-gear coil, the fourth second-gear coil and the fourth third-gear coil are located in the same stator slot among the plurality of stator slots; The first end of the third first-gear coil is connected to the second end of the second first-gear coil, the second end of the third first-gear coil is connected to the first end of the fourth first-gear coil, the second end of the fourth first-gear coil is connected to the first end of the fourth second-gear coil, the second end of the fourth second-gear coil is connected to the first end of the third second-gear coil, the second end of the third second-gear coil is connected to the first end of the second second-gear coil, the second end of the second third-gear coil is connected to the first end of the third third-gear coil, the second end of the third third-gear coil is connected to the first end of the fourth third-gear coil, and the second end of the fourth third-gear coil is the wiring tail.

14. The stator assembly according to claim 13, characterized in that The second end of the fourth first-gear coil is the connection terminal of the first-gear coil, the first end of the fourth second-gear coil is the connection terminal of the second-gear coil, and the coil assembly further includes: a first wire-passing portion, wherein two ends of the first wire-passing portion are respectively connected to the second end of the fourth first-gear coil and the first end of the fourth second-gear coil; a first wiring portion, the first wiring portion being connected to the first wire-passing portion; The second end of the fourth first-gear coil, the first end of the fourth second-gear coil, and the connection tail end are located in a same stator slot among the plurality of stator slots.

15. The stator assembly according to claim 13, characterized in that The second end of the first second gear coil is a connection terminal of the second gear coil, the first end of the first third gear coil is a connection terminal of the third gear coil, and the coil assembly further includes: a second wire-passing portion, two ends of which are respectively connected to the second end of the first second-gear coil and the first end of the first third-gear coil; a second wiring portion, the second wiring portion being connected to the second wire passing portion; The connection head end, the second end of the first second-gear coil and the first end of the first third-gear coil are located in the same stator slot among the plurality of stator slots.

16. The stator assembly according to any one of claims 13 to 15, characterized in that: The first-gear coil, the second-gear coil, the third-gear coil and the fourth-gear coil are arranged in sequence along the circumferential direction of the stator core; The first second-gear coil, the second second-gear coil, the third second-gear coil and the fourth second-gear coil are arranged in sequence along the circumferential direction of the stator core; The first three-gear coil, the second three-gear coil, the third three-gear coil and the fourth three-gear coil are sequentially arranged along the circumferential direction of the stator core.

17. A winding die, characterized in that: The winding mold is used for winding a winding as claimed in any one of claims 1 to 9, comprising: A winding component, wherein the winding component comprises at least two winding grooves, the first-gear coil is wound in one of the at least two winding grooves, the first-second-gear coil is wound on the first-gear coil, the second-gear coil is wound in the other of the at least two winding grooves, and the second-second-gear coil is wound on the second-gear coil; A wire hanging board, the wire hanging board comprising a board body and a wire hanging column, the board body is arranged on the wire winding component and is located on one side of the wire winding component, and the wire hanging column is arranged on the board body; The second end of the second first-gear coil and / or the first end of the second second-gear coil are wound around the wire hanging pole.

18. The winding die according to claim 17, characterized in that: The number of the wire hanging plates is at least two, and at least two of the wire hanging plates are respectively located on both sides of the winding component; The first wire-passing portion of the winding is hung or wound on a wire-hanging column of one of the at least two wire-hanging boards; The second wire-passing portion of the winding is hung or wound on a wire-hanging pole of another wire-hanging board among the at least two wire-hanging boards.

19. The winding die according to claim 18, characterized in that: The length of the first wiring portion is different from the length of the second wiring portion; and / or The number of winding turns of the first wiring portion is different from the number of winding turns of the second wiring portion.

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