Stator assemblies, motors, compressors and vehicles

Abstract

The present invention proposes a stator assembly, a motor, a compressor and a vehicle, wherein, in the stator assembly, a first winding is wound on a first stator tooth, a second winding is wound on a second stator tooth, and a third winding is wound on a third stator tooth, the first winding includes a first lead wire and a second lead wire, the second winding includes a third lead wire and a fourth lead wire, and the third winding includes a fifth lead wire and a sixth lead wire. The first lead wire and the third lead wire are led out from adjacent stator slots, the third lead wire and the fifth lead wire are led out from adjacent stator slots, the fifth lead wire and the second lead wire are led out from the same stator slot, the second lead wire and the fourth lead wire are led out from adjacent stator slots, and the fourth lead wire and the sixth lead wire are led out from adjacent stator slots. When winding, the lengths of the windings on the six stator teeth can be set similarly, so that the winding action of the winding nozzle has a strong rhythmicity, improves production efficiency, and avoids waste of coils.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a stator assembly, a motor, a compressor and a vehicle. Background Art

[0002] In the related art, when winding the stator core, the stator core can be unfolded into a straight strip, and at least three winding nozzles are operated simultaneously to improve efficiency. However, if the position of the lead wire of the winding is improperly set during winding, the length of the wire head and wire tail of the coil will be uneven during winding, thereby affecting the winding rhythm.

[0003] In addition, when the winding wire is led out and a three-phase wiring interface is set up, lead wires of the three phases U / V / W are required. From the lead-out position of the slot to the three-phase wiring interface position, the length difference between the three phases should be minimized as much as possible to improve the symmetry of the three phases. Summary of the invention

[0004] The present invention aims to solve or improve at least one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of the present invention provides a stator assembly.

[0006] A second aspect of the present invention provides an electric machine.

[0007] A third aspect of the present invention provides a compressor.

[0008] A fourth aspect of the present invention provides a vehicle.

[0009] In view of this, according to a first aspect of the present invention, the present invention proposes a stator assembly, including a stator core, the stator core including multiple groups of stator teeth, stator slots are formed between adjacent stator teeth in the multiple groups of stator teeth, each group of stator teeth includes first stator teeth, second stator teeth and third stator teeth that are adjacent to each other in sequence; a first winding, a second winding and a third winding wound on the stator core, the first winding is wound on the first stator tooth, the second winding is wound on the second stator tooth, and the third winding is wound on the third stator tooth, and the first winding includes a first lead wire and a second lead wire, the second winding includes a third lead wire and a fourth lead wire, and the third winding includes a fifth lead wire and a sixth lead wire, wherein the first lead wire, the third lead wire and the fifth lead wire are led out from sequentially adjacent stator slots, the second lead wire, the fourth lead wire and the sixth lead wire are led out from sequentially adjacent stator slots, and the fifth lead wire and the second lead wire are led out from the same stator slot.

[0010] The stator assembly proposed in the present invention includes a stator core and windings wound on stator teeth of the stator core. The stator is composed of multiple groups of stator teeth, and the stator teeth include first stator teeth, second stator teeth, and third stator teeth. The first stator teeth, second stator teeth, and third stator teeth are then arranged in a cycle.

[0011] The first winding is wound on the first stator tooth, the second winding is wound on the second stator tooth, and the third winding is wound on the third stator tooth, so that the first winding, the second winding and the third winding form a three-phase winding, wherein the first winding includes two lead wires, namely the first lead wire and the second lead wire, and the two lead wires are led out from coils on different stator teeth, the second winding includes two lead wires, namely the third lead wire and the fourth lead wire, and the two lead wires are led out from coils on different stator teeth, and the third winding includes two lead wires, namely the fifth lead wire and the sixth lead wire, and the two lead wires are led out from coils on different stator teeth.

[0012] Furthermore, the first lead wire and the third lead wire are led out from adjacent stator slots, the third lead wire and the fifth lead wire are led out from adjacent stator slots, the fifth lead wire and the second lead wire are led out from the same stator slot, the second lead wire and the fourth lead wire are led out from adjacent stator slots, and the fourth lead wire and the sixth lead wire are led out from adjacent stator slots.

[0013] The first lead wire is defined as the first complete stator slot, the second complete stator slot is adjacent to it, the third complete stator slot, the fourth complete stator slot, the fifth complete stator slot or the sixth complete stator slot, etc. The first lead wire is led from the first complete stator slot on the stator core, the third lead wire is led from the second complete stator slot, the fifth lead wire is led from the third complete stator slot, the second lead wire is led from the third complete stator slot, the fourth lead wire is led from the fourth complete stator slot, and the sixth lead wire is led from the fifth complete stator slot. The first lead wire is led from the coil on the first stator tooth, the third lead wire is led from the coil on the second stator tooth, the fifth lead wire is led from the coil on the third stator tooth, the second lead wire is led from the coil on the fourth stator tooth, the fourth lead wire is led from the coil on the fifth stator tooth, and the sixth lead wire is led from the coil on the sixth stator tooth.

[0014] Furthermore, when winding the wires, the lengths of the windings on the six stator teeth can be set similarly to meet the requirements of the lead-out wires.

[0015] Specifically, when winding, three winding nozzles can be used to wind the first group of stator teeth on the strip-shaped stator core at the same time. Since lead wires are led out from the first stator tooth, the second stator tooth and the third stator tooth on the first group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0016] After winding the first group of stator teeth, the three winding nozzles can be moved to the second group of stator teeth to wind the second group of stator teeth. Since lead wires are led out from the first stator teeth, the second stator teeth and the third stator teeth on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0017] After winding the second group of stator teeth, the three winding nozzles can be moved to the third group of stator teeth to wind the third group of stator teeth. Since there are no lead wires on the first stator teeth, the second stator teeth and the third stator teeth on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0018] Similarly, when winding the fourth group of stator teeth to the last group of stator teeth, the first stator teeth, the second stator teeth and the third stator teeth thereon do not involve lead wires. Therefore, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. Moreover, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0019] In addition, the stator assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0020] On the basis of the above technical solution, further, the stator core can be unfolded into a strip shape, and when the stator core is unfolded into a strip shape, the first lead wire is led out from the first complete stator slot. In this technical solution, the stator core can be unfolded into a strip shape for winding, thereby improving the full slot rate and improving the performance of the motor.

[0021] Specifically, the stator core can be unfolded into a strip for winding, the starting stator tooth at one end of the strip stator core is the first stator tooth, the second is the second stator tooth, and the third is the third stator tooth, and then the first stator tooth, the second stator tooth and the third stator tooth are arranged in a cycle until the end of the strip stator core.

[0022] The first winding is wound on the first stator tooth, the second winding is wound on the second stator tooth, and the third winding is wound on the third stator tooth, so that the first winding, the second winding and the third winding form a three-phase winding, wherein the first winding includes two lead wires, namely the first lead wire and the second lead wire, and the two lead wires are led out from coils on different stator teeth, the second winding includes two lead wires, namely the third lead wire and the fourth lead wire, and the two lead wires are led out from coils on different stator teeth, and the third winding includes two lead wires, namely the fifth lead wire and the sixth lead wire, and the two lead wires are led out from coils on different stator teeth.

[0023] Furthermore, the first lead wire and the third lead wire are led out from adjacent stator slots, the third lead wire and the fifth lead wire are led out from adjacent stator slots, the fifth lead wire and the second lead wire are led out from the same stator slot, the second lead wire and the fourth lead wire are led out from adjacent stator slots, and the fourth lead wire and the sixth lead wire are led out from adjacent stator slots.

[0024] When the stator core is unfolded into a strip, the first lead wire is led out from the first complete stator slot on the strip stator core, the third lead wire is led out from the second complete stator slot, the fifth lead wire is led out from the third complete stator slot, the second lead wire is led out from the third complete stator slot, the fourth lead wire is led out from the fourth complete stator slot, and the sixth lead wire is led out from the fifth complete stator slot. The first lead wire is led out from the coil on the first stator tooth, the third lead wire is led out from the coil on the second stator tooth, the fifth lead wire is led out from the coil on the third stator tooth, the second lead wire is led out from the coil on the fourth stator tooth, the fourth lead wire is led out from the coil on the fifth stator tooth, and the sixth lead wire is led out from the coil on the sixth stator tooth.

[0025] Furthermore, when winding the wire, the lengths of the wires wound on the first six stator teeth can be set similarly to meet the requirements of the lead-out wires.

[0026] On the basis of any of the above technical solutions, further, the first winding, the second winding and the third winding are connected in a triangle.

[0027] In this technical solution, the first winding, the second winding and the third winding are connected in a triangle, that is, the first lead wire and the sixth lead wire are connected, the second lead wire and the fourth lead wire are connected, and the third lead wire and the fifth lead wire are connected, thereby forming a triangle connection of the first winding, the second winding and the third winding, thereby increasing the power of the motor.

[0028] Moreover, this connection method can make the overlapping of the lead wires symmetrical, avoid too many overlapping lead wires at a certain place, which would cause the axial height of the stator assembly to be too high, optimize the layout of the stator assembly, and facilitate the miniaturization of the motor.

[0029] On the basis of any of the above technical solutions, it further includes: an insulating structure, which is arranged on the stator core and is used for insulation between the stator core and the first winding, the second winding and the third winding, and a first terminal, a second terminal and a third terminal are arranged on one end surface of the insulating structure, and the first terminal, the third terminal and the second terminal are distributed along the circumference of the stator core; a first connecting wire, which is located at one end of the stator core and connects the first terminal and the first lead wire; a second connecting wire, which is located at one end of the stator core and connects the second terminal and the third lead wire; a third connecting wire, which is located at one end of the stator core and connects the third terminal and the fifth lead wire.

[0030] In this technical solution, an insulating structure is provided between the first winding and the stator core, between the second winding and the stator core, and between the third winding and the stator core to achieve insulation between the stator core and the first winding, the second winding, and the third winding.

[0031] In addition, three terminals, namely a first terminal, a second terminal and a third terminal, are arranged on the end face of the insulating structure, and the first terminal, the third terminal and the second terminal are arranged along the circumference of the stator core for connecting three-phase electricity, so that the first winding, the second winding and the third winding form a magnetic field.

[0032] Among them, taking the triangle connection method as an example, the first lead wire and the sixth lead wire are connected, the third lead wire and the second lead wire are connected, and the fifth lead wire and the fourth lead wire are connected. On this basis, the first connecting wire is used to connect the first lead wire and the first terminal, the second connecting wire is used to connect the third lead wire and the second terminal, and the third connecting wire is used to connect the fifth lead wire and the third terminal, so as to reduce the length of the lead wire, thereby reducing the stroke of the winding nozzle and improving production efficiency.

[0033] On the basis of any of the above technical solutions, further, along the radial direction of the stator core, the first terminal is located opposite to the stator slot from which the fifth lead wire is led; along the radial direction of the stator core, the second terminal is located opposite to the stator slot from which the third lead wire is led; along the radial direction of the stator core, the third terminal is located opposite to the stator slot from which the third lead wire is led.

[0034] In this technical solution, since the number of stator teeth and stator slots can be an even number, each stator slot has a stator slot opposite to it based on the radial direction of the stator core, and the first terminal, the second terminal and the third terminal are located at the stator yoke portion, the first terminal is located at the stator yoke portion corresponding to a stator slot, and the stator slot corresponding to the first terminal is opposite to the stator slot from which the fifth lead wire is led out, the second terminal is located at the stator yoke portion corresponding to a stator slot, and the stator slot corresponding to the second terminal is opposite to the stator slot from which the third lead wire is led out, and the third terminal is located at the stator yoke portion corresponding to a stator slot, and the stator slot corresponding to the third terminal is opposite to the stator slot from which the third lead wire is led out.

[0035] Correspondingly, since the first lead wire is connected to the first terminal through the first connecting wire, the third lead wire is connected to the second terminal through the second connecting wire, and the fifth lead wire is connected to the third terminal through the third connecting wire, and the distance between the first terminal and the first lead wire, the distance between the second terminal and the third lead wire, and the distance between the third lead wire and the fifth terminal are slightly different, when the first connecting wire, the second connecting wire and the third connecting wire are set, the lengths of the three are roughly the same, so that the three connecting wires can be arranged more evenly at one end of the stator core, avoiding local wire accumulation, which is beneficial to reducing the overall axial height of the stator assembly.

[0036] Based on any of the above technical solutions, further, the number of stator teeth is 12.

[0037] In this technical solution, the number of stator teeth is 12 and the number of stator slots is 12.

[0038] On the basis of any of the above technical solutions, further, the first connecting wire is bent along the circumference of the stator core; the second connecting wire is bent along the circumference of the stator core; and the third connecting wire is bent along the circumference of the stator core.

[0039] In this technical solution, the first connecting line, the second connecting line and the third connecting line are all bent, so as to avoid the part where the rotor is set, making the overall routing more neat, and can avoid the bridge line to a certain extent, thereby reducing the axial height of the stator assembly.

[0040] On the basis of any of the above technical solutions, further, the first lead wire, the second lead wire, the third lead wire, the fourth lead wire, the fifth lead wire and the sixth lead wire are located at the same end of the stator core.

[0041] In this technical solution, the first lead wire, the second lead wire, the third lead wire, the fourth lead wire, the fifth lead wire and the sixth lead wire are located at the same end of the stator core, so that all the lead wires outside the windings can be completed at the same end of the stator core, which is convenient for the connection between the terminals and the lead wires. Moreover, when connecting the lead wires and installing the connecting wires, all operations can be completed on one side of the stator core, which reduces the difficulty of installation and improves production efficiency.

[0042] On the basis of any of the above technical solutions, further, the stator core corresponding to the first connecting wire and the stator core corresponding to the second connecting wire do not overlap; the stator core corresponding to the first connecting wire and the stator core corresponding to the third connecting wire do not overlap.

[0043] In this technical solution, the first connecting wire and the second connecting wire pass through different stator core areas, and the first connecting wire and the third connecting wire also pass through different stator core areas, thereby avoiding excessive local wire accumulation caused by the three connecting wires in the same place, which affects the setting of the rotor or the axial height of the stator assembly. In addition, since the first lead-out wire is one of the edges of the six lead-out wires and is close to the first terminal, the first connecting wire is separated from the second connecting wire and the third connecting wire, which can reduce the length of the first connecting wire and save costs.

[0044] On the basis of any of the above technical solutions, further, the stator core corresponding to the second connecting wire and the stator core corresponding to the third connecting wire partially overlap.

[0045] In this technical solution, the second connecting wire and the third connecting wire pass through the same area of ​​the stator core. Since there are fewer bridge wires in the middle positions of the six lead-out wires, the part of the stator core where the second connecting wire and the third connecting wire pass also has fewer bridge wires, thereby making the routing of the winding more uniform and reducing the axial height of the stator core.

[0046] On the basis of any of the above technical solutions, it further includes: a first bridge line connecting the first winding located at different first stator teeth; a second bridge line connecting the second winding located at different second stator teeth; and a third bridge line connecting the third winding located at different third stator teeth.

[0047] In this technical solution, the coils of the first winding on different first stator teeth are connected by a first bridge wire, the coils of the second winding on different second stator teeth are connected by a second bridge wire, and the coils of the third winding on different third stator teeth are connected by a third bridge wire, thereby achieving the integrity of the first winding, the second winding, and the third winding, and reducing the length of the coil wire head and tail, which is beneficial to reducing the stroke of the winding nozzle and improving production efficiency.

[0048] On the basis of any of the above technical solutions, further, the first bridge wire connects the first winding on the adjacent first stator tooth; the second bridge wire connects the second winding on the adjacent second stator tooth; and the third bridge wire connects the third winding on the adjacent third stator tooth.

[0049] In this technical solution, the first bridge wire connects the first winding on the adjacent first stator tooth, so that the length of the first bridge wire can be minimized, the second bridge wire connects the second winding on the adjacent second stator tooth, so that the length of the second bridge wire can be minimized, and the third bridge wire connects the third winding on the adjacent third stator tooth, so that the length of the third bridge wire can be minimized, which is beneficial to the stacking of the role wires and reduces the axial height of the stator assembly.

[0050] According to a second aspect of the present invention, the present invention proposes a motor, comprising: a stator assembly as proposed in any one of the above technical solutions.

[0051] The motor proposed in the present invention includes a stator assembly as proposed in any one of the above technical solutions, and therefore has all the beneficial effects of the stator assembly as proposed in any one of the above technical solutions, which will not be stated one by one here.

[0052] According to a third aspect of the present invention, the present invention proposes a compressor, comprising: a motor as proposed in any one of the above technical solutions.

[0053] The compressor proposed in the present invention includes a motor as proposed in any one of the above technical solutions, and therefore has all the beneficial effects of the motor as proposed in any one of the above technical solutions, which will not be stated one by one here.

[0054] According to a fourth aspect of the present invention, the present invention proposes a vehicle, comprising: a compressor as proposed in any one of the above technical solutions.

[0055] The vehicle proposed in the present invention includes a compressor as proposed in any one of the above technical solutions, and therefore has all the beneficial effects of the compressor as proposed in any one of the above technical solutions, which will not be stated one by one here.

[0056] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] 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:

[0058] Figure 1 A schematic structural diagram of a stator assembly provided in a first embodiment of the present invention is shown;

[0059] Figure 2 A schematic diagram showing the connection of the first winding, the second winding and the third winding in the stator assembly provided by the first embodiment of the present invention is shown;

[0060] Figure 3 A schematic diagram showing a triangle connection of a first winding, a second winding and a third winding in a stator assembly provided by a first embodiment of the present invention;

[0061] Figure 4 A schematic diagram showing corresponding positions of the first lead wire, the second lead wire, the third lead wire, the fourth lead wire, the fifth lead wire, the sixth lead wire and the first terminal, the second terminal and the third terminal in the stator core of the stator assembly provided by the first embodiment of the present invention in an unfolded state;

[0062] Figure 5 A schematic structural diagram of a stator assembly provided in a second embodiment of the present invention is shown;

[0063] Figure 6 A schematic diagram showing the connection of the first winding, the second winding and the third winding in the stator assembly provided by the second embodiment of the present invention is shown;

[0064] Figure 7 A schematic diagram showing a delta connection of a first winding, a second winding and a third winding in a stator assembly provided by a second embodiment of the present invention.

[0065] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0066] 100 stator assembly, 102 first stator tooth, 104 second stator tooth, 106 third stator tooth, 108 stator slot, 112 first winding, 114 second winding, 116 third winding, 118 first lead wire, 120 second lead wire, 122 third lead wire, 124 fourth lead wire, 126 fifth lead wire, 128 sixth lead wire, 132 first bridge wire, 134 second bridge wire, 136 third bridge wire, 142 first terminal, 144 second terminal, 146 third terminal. DETAILED DESCRIPTION

[0067] 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.

[0068] 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.

[0069] Refer to the following Figures 1 to 7 A stator assembly 100 , a motor, a compressor, and a vehicle according to some embodiments of the present invention are described.

[0070] Embodiment 1:

[0071] like Figures 1 to 7 As shown, the stator assembly 100 provided by the present invention includes a stator core and windings wound on the stator teeth of the stator core. The stator is composed of multiple groups of stator teeth. The stator teeth include a first stator tooth 102, a second stator tooth 104, and a third stator tooth 106. The first stator tooth 102, the second stator tooth 104, and the third stator tooth 106 are then arranged in a cycle.

[0072] A first winding 112 is wound on the first stator tooth 102, a second winding 114 is wound on the second stator tooth 104, and a third winding 116 is wound on the third stator tooth 106, so that the first winding 112, the second winding 114 and the third winding 116 form a three-phase winding, wherein the first winding 112 includes two lead wires, namely a first lead wire 118 and a second lead wire 120, and the two lead wires are led out from coils on different stator teeth, the second winding 114 includes two lead wires, namely a third lead wire 122 and a fourth lead wire 124, and the two lead wires are led out from coils on different stator teeth, and the third winding 116 includes two lead wires, namely a fifth lead wire 126 and a sixth lead wire 128, and the two lead wires are led out from coils on different stator teeth.

[0073] Furthermore, the first lead wire 118 and the third lead wire 122 are led out from adjacent stator slots 108, the third lead wire 122 and the fifth lead wire 126 are led out from adjacent stator slots 108, the fifth lead wire 126 and the second lead wire 120 are led out from the same stator slot 108, the second lead wire 120 and the fourth lead wire 124 are led out from adjacent stator slots 108, and the fourth lead wire 124 and the sixth lead wire 128 are led out from adjacent stator slots 108.

[0074] Among them, the lead-out stator slot 108 of the first lead wire 118 is defined as the first complete stator slot 108, adjacent to it is the second complete stator slot 108, followed by the third complete stator slot 108, the fourth complete stator slot 108, the fifth complete stator slot 108 or the sixth complete stator slot 108, etc. The first lead wire 118 is led out from the first complete stator slot 108 on the stator core, the third lead wire 122 is led out from the second complete stator slot 108, the fifth lead wire 126 is led out from the third complete stator slot 108, the second lead wire 120 is led out from the third complete stator slot 108, the fourth lead wire 124 is led out from the fourth complete stator slot 108, and the sixth lead wire 128 is led out from the fifth complete stator slot 108. Among them, the first lead wire 118 is led out from the coil on the first stator tooth, the third lead wire 122 is led out from the coil on the second stator tooth, the fifth lead wire 126 is led out from the coil on the third stator tooth, the second lead wire 120 is led out from the coil on the fourth stator tooth, the fourth lead wire 124 is led out from the coil on the fifth stator tooth, and the sixth lead wire 128 is led out from the coil on the sixth stator tooth.

[0075] Furthermore, when winding the wires, the lengths of the windings on the six stator teeth can be set similarly to meet the requirements of the lead-out wires.

[0076] Specifically, when winding, three winding nozzles can be used to wind the first group of stator teeth on the strip-shaped stator core at the same time. Since lead wires are led out from the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 on the first group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. Moreover, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0077] After winding the first group of stator teeth, the three winding nozzles can be moved to the second group of stator teeth to wind the second group of stator teeth. Since lead wires are led out from the first stator teeth 102, the second stator teeth 104 and the third stator teeth 106 on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0078] After winding the second group of stator teeth, the three winding nozzles can be moved to the third group of stator teeth to wind the third group of stator teeth. Since there are no lead wires on the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0079] Similarly, when winding the fourth group of stator teeth to the last group of stator teeth, the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 thereon do not involve lead wires. Therefore, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. Moreover, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0080] Embodiment 2:

[0081] like Figures 1 to 7 As shown, the present invention proposes a stator assembly 100, including a stator core, a first winding 112, a second winding 114 and a third winding 116. The first winding 112, the second winding 114 and the third winding 116 are wound on the stator core in the form of concentrated windings. Specifically, each pole of the stator core has only one coil.

[0082] The stator core includes a stator yoke and a plurality of stator teeth. The stator yoke can be formed into a ring structure or a strip structure. When the stator yoke is formed into a ring structure, the stator teeth are arranged in the inner ring of the stator yoke, and stator slots 108 are formed between adjacent stator teeth. The stator core includes a plurality of stator lobes.

[0083] Furthermore, each stator segment includes a complete stator tooth.

[0084] Specifically, three adjacent stator teeth form a group, that is, a group of stator teeth includes three stator teeth, which are the first stator tooth 102 , the second stator tooth 104 , and the third stator tooth 106 .

[0085] Furthermore, if Figure 1 As shown, the stator tooth corresponding to the rectangular marking groove is the first stator tooth 102, and in the counterclockwise direction, it is the second stator tooth 104, the third stator tooth 106, and then the first stator tooth 102, the second stator tooth 104, and the third stator tooth 106 of the next group of stator teeth, and this cycle is repeated for one cycle.

[0086] A first winding 112 is wound on the first stator tooth 102, a second winding 114 is wound on the second stator tooth 104, and a third winding 116 is wound on the third stator tooth 106, so that the first winding 112, the second winding 114 and the third winding 116 form a three-phase winding, wherein the first winding 112 includes two lead wires, namely a first lead wire 118 and a second lead wire 120, and the two lead wires are led out from coils on different stator teeth, the second winding 114 includes two lead wires, namely a third lead wire 122 and a fourth lead wire 124, and the two lead wires are led out from coils on different stator teeth, and the third winding 116 includes two lead wires, namely a fifth lead wire 126 and a sixth lead wire 128, and the two lead wires are led out from coils on different stator teeth.

[0087] Furthermore, the first lead wire 118 and the third lead wire 122 are led out from adjacent stator slots 108, the third lead wire 122 and the fifth lead wire 126 are led out from adjacent stator slots 108, the fifth lead wire 126 and the second lead wire 120 are led out from the same stator slot 108, the second lead wire 120 and the fourth lead wire 124 are led out from adjacent stator slots 108, and the fourth lead wire 124 and the sixth lead wire 128 are led out from adjacent stator slots 108.

[0088] When the stator core is unfolded into a strip, the first lead wire 118 is led out from the first complete stator slot 108 on the strip stator core, the third lead wire 122 is led out from the second complete stator slot 108, the fifth lead wire 126 is led out from the third complete stator slot 108, the second lead wire 120 is led out from the third complete stator slot 108, the fourth lead wire 124 is led out from the fourth complete stator slot 108, and the sixth lead wire 128 is led out from the fifth complete stator slot 108. The first lead wire 118 is led out from the coil on the first stator tooth, the third lead wire 122 is led out from the coil on the second stator tooth, the fifth lead wire 126 is led out from the coil on the third stator tooth, the second lead wire 120 is led out from the coil on the fourth stator tooth, the fourth lead wire 124 is led out from the coil on the fifth stator tooth, and the sixth lead wire 128 is led out from the coil on the sixth stator tooth.

[0089] Furthermore, when winding the wire, the lengths of the wires wound on the first six stator teeth can be set similarly to meet the requirements of the lead-out wires.

[0090] Specifically, when winding, three winding nozzles can be used to wind the first group of stator teeth on the strip-shaped stator core at the same time. Since lead wires are led out from the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 on the first group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. Moreover, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0091] After winding the first group of stator teeth, the three winding nozzles can be moved to the second group of stator teeth to wind the second group of stator teeth. Since lead wires are led out from the first stator teeth 102, the second stator teeth 104 and the third stator teeth 106 on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0092] After winding the second group of stator teeth, the three winding nozzles can be moved to the third group of stator teeth to wind the third group of stator teeth. Since there are no lead wires on the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 on the second group of stator teeth, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. In addition, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0093] Similarly, when winding the fourth group of stator teeth to the last group of stator teeth, the first stator tooth 102, the second stator tooth 104 and the third stator tooth 106 thereon do not involve lead wires. Therefore, the winding lengths on the three stator teeth are the same, and the winding can be started and stopped at the same time. Moreover, the strokes of the three winding nozzles can also be the same, which facilitates the mechanized winding of the stator core, makes the winding action of the winding nozzle have a strong rhythmicity, improves production efficiency, and avoids waste of coils.

[0094] Specifically, Figure 1 , Figure 2 and Figure 3As shown, a stator core including 12 stator teeth and 12 stator slots 108 is taken as an example for explanation, the line head or line tail on the right side of the first winding 112 on the first stator tooth 102 corresponding to the rectangular marking slot is numbered 1, and the line head or line tail on the left side is numbered 2, and along the counterclockwise direction, they are numbered 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24. Specifically, the coil wound on a stator tooth has a wire head and a wire tail. When the coil is wound, the winding direction of the winding nozzle remains unchanged, that is, it is wound completely clockwise or completely counterclockwise, and one of the wire head and the wire tail is located on one side of the stator tooth about which it is wound, and the other of the wire head and the wire tail is located on the other side of the stator tooth about which it is wound, and both the wire head and the wire tail are located at the same end of the stator core. Based on the above winding method, each wire head and wire tail are numbered 1 to 24 in sequence. For convenience of expression, the numbers 1 to 24 are referred to as wire heads below.

[0095] The thread end with number 1 and the thread end with number 2 belong to the same coil wound on the same stator tooth; the thread end with number 3 and the thread end with number 4 belong to the same coil wound on the same stator tooth. Similarly, every two thread ends with the following numbers belong to the same coil.

[0096] like Figure 4 As shown, the stator core can be unfolded at the stator yoke between the wire end labeled 1 and the wire end labeled 24 to form a strip structure, with the wire end labeled 1 at the first position and the wire end labeled 24 at the last position.

[0097] Among them, stator teeth A, stator teeth D, stator teeth G and stator teeth J are first stator teeth 102, stator teeth B, stator teeth E, stator teeth H and stator teeth K are second stator teeth 104, stator teeth C, stator teeth F, stator teeth I and stator teeth L are third stator teeth 106, and the coil wound on the first stator tooth 102 is the first winding 112, the coil wound on the second stator tooth 104 is the second winding 114, and the coil wound on the third stator tooth 106 is the third winding 116.

[0098] And, if Figure 4 As shown, the wire end labeled 2 is the first lead wire 118, the wire end labeled 4 is the third lead wire 122, the wire end labeled 6 is the fifth lead wire 126, the wire end labeled 7 is the second lead wire 120, the wire end labeled 9 is the fourth lead wire 124, and the wire end labeled 11 is the sixth lead wire 128.

[0099] Furthermore, the first lead wire 118 , the second lead wire 120 and the third lead wire 122 belong to the first group of stator teeth, namely, the first stator tooth 102 , the second stator tooth 104 and the third stator tooth 106 at the first position.

[0100] When winding, in order to ensure a continuous winding action, the winding order is usually from stator tooth A to stator tooth L. That is to say, if three winding nozzles are used for winding at the same time, then the first group of stator teeth consisting of stator teeth A, stator teeth B and stator teeth C are wound to the fourth group of stator teeth consisting of stator teeth J, stator teeth K and stator teeth L.

[0101] The first lead wire 118, the third lead wire 122 and the fifth lead wire 126 are respectively arranged on the stator tooth A, the stator tooth B and the stator tooth C of the first group of stator teeth. Therefore, when winding, the coil lengths on the stator tooth A, the stator tooth B and the stator tooth C can be set to be roughly the same, so as to facilitate the winding of the winding nozzle and avoid disrupting the winding rhythm.

[0102] Similarly, the second lead wire 120, the fourth lead wire 124 and the sixth lead wire 128 are respectively arranged on the stator teeth D, the stator teeth E and the stator teeth F of the second group of stator teeth. Then, when winding, the coil lengths on the stator teeth D, the stator teeth E and the stator teeth F can be set to be approximately the same, thereby facilitating the winding of the winding nozzle and avoiding disrupting the winding rhythm.

[0103] Similarly, no lead wires are set on the stator teeth G, stator teeth H and stator teeth I of the third group of stator teeth. Therefore, when winding, the coil lengths on the stator teeth G, stator teeth H and stator teeth I can be set to be roughly the same, so as to facilitate the winding of the winding nozzle and avoid disrupting the winding rhythm.

[0104] Similarly, no lead wires are set on the stator teeth J, stator teeth K and stator teeth L of the fourth group of stator teeth. Therefore, when winding, the coil lengths on the stator teeth J, stator teeth K and stator teeth L can be set to be roughly the same, so as to facilitate the winding of the winding nozzle and avoid disrupting the winding rhythm.

[0105] Specifically, Figure 5 , Figure 6 and Figure 7As shown, a stator core including 15 stator teeth and 15 stator slots 108 is taken as an example for explanation, the line head or line tail on the right side of the first winding 112 on the first stator tooth 102 corresponding to the rectangular marking slot is numbered 1, and the line head or line tail on the left side is numbered 2, and along the counterclockwise direction, they are numbered 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. Specifically, a coil wound on a stator tooth has a wire head and a wire tail. When the coil is wound, the winding direction of the winding nozzle remains unchanged, that is, it is wound completely clockwise or completely counterclockwise, and one of the wire head and the wire tail is located on one side of the stator tooth about which it is wound, and the other of the wire head and the wire tail is located on the other side of the stator tooth about which it is wound, and both the wire head and the wire tail are located at the same end of the stator core. Based on the above winding method, each wire head and wire tail are numbered 1 to 30 in sequence. For convenience of expression, the numbers 1 to 30 are all referred to as wire heads below.

[0106] The thread end with number 1 and the thread end with number 2 belong to the same coil wound on the same stator tooth; the thread end with number 3 and the thread end with number 4 belong to the same coil wound on the same stator tooth. Similarly, every two thread ends with the following numbers belong to the same coil.

[0107] As shown in the embodiment with 12 stator teeth and 12 stator slots, the embodiment with 15 stator teeth and 15 stator slots also has the same effect, which will not be described in detail here.

[0108] Embodiment 3:

[0109] like Figure 2 and Figure 3 As shown, on the basis of Example 1 or Example 2, further, the stator assembly 100 adopts a triangle connection, that is, the first winding 112, the second winding 114 and the third winding 116 are connected in the first position and then connected to three-phase power.

[0110] In this embodiment, the first winding 112, the second winding 114 and the third winding 116 are connected in a triangle, that is, the first lead wire 118 and the sixth lead wire 128 are connected, that is, the wire end labeled 2 and the wire end labeled 11 are connected, the second lead wire 120 and the fourth lead wire 124 are connected, that is, the wire end labeled 6 and the wire end labeled 9 are connected, and the third lead wire 122 and the fifth lead wire 126 are connected, that is, the wire end labeled 4 and the wire end labeled 7 are connected, thereby forming a triangle connection of the first winding 112, the second winding 114 and the third winding 116, thereby increasing the power of the motor.

[0111] Moreover, this connection method can make the overlap between the lead wires symmetrical, avoid too many overlapping lead wires at a certain place, which would cause the axial height of the stator assembly 100 to be too high, optimize the layout of the stator assembly 100, and facilitate the miniaturization of the motor.

[0112] Embodiment 4:

[0113] like Figure 1 As shown, on the basis of any one of Examples 1 to 3, an insulating structure is further provided on the stator core for achieving insulation between the first winding 112 and the stator core, insulation between the second winding 114 and the stator core, and insulation between the third winding 116 and the stator core.

[0114] Specifically, the insulation structure includes end face insulation and slot insulation, wherein the end face insulation includes a plurality of insulation frames, which can be arranged at two end faces of the stator core and can be unfolded into a strip structure as the stator core is unfolded, and the slot insulation can be insulating paper.

[0115] Three terminals are provided on the side of the end face insulation facing away from the stator core for connecting three-phase electricity, wherein the first terminal 142 can be connected to the U phase, the second terminal 144 can be connected to the W phase, and the third terminal 146 can be connected to the V phase, and the first terminal 142, the third terminal 146 and the second terminal 144 are arranged at positions corresponding to the stator yoke and distributed along the circumference of the stator core, wherein the first terminal 142 is connected to the first lead wire 118 through the first connecting wire, the second terminal 144 is connected to the third lead wire 122 through the second connecting wire, and the third terminal 146 is connected to the fifth lead wire 126 through the third connecting wire.

[0116] Specifically, after the sixth lead wire 128 is connected to the first lead wire 118, it is connected to the first terminal 142 through the first connecting wire. After the second lead wire 120 is connected to the third lead wire 122, it is connected to the second and third terminals through the second connecting wire. After the fourth lead wire 124 is connected to the fifth lead wire 126, it is connected to the third terminal 146 through the third connecting wire.

[0117] In this embodiment, an insulation structure is provided between the first winding 112 and the stator core, between the second winding 114 and the stator core, and between the third winding 116 and the stator core to achieve insulation between the stator core and the first winding 112 , the second winding 114 , and the third winding 116 .

[0118] In addition, three terminals are arranged on the end surface of the insulating structure, namely the first terminal 142, the second terminal 144 and the third terminal 146, and the first terminal 142, the third terminal 146 and the second terminal 144 are arranged along the circumference of the stator core for connecting three-phase electricity, so that the first winding 112, the second winding 114 and the third winding 116 form a magnetic field.

[0119] Among them, taking the triangle connection as an example, the first lead wire 118 is connected to the sixth lead wire 128, the third lead wire 122 is connected to the second lead wire 120, and the fifth lead wire 126 is connected to the fourth lead wire 124. On this basis, the first connecting wire is used to connect the first lead wire 118 and the first terminal 142, the second connecting wire is used to connect the third lead wire 122 and the second terminal 144, and the third connecting wire is used to connect the fifth lead wire 126 and the third terminal 146, so that the length of the lead wire can be reduced, thereby reducing the stroke of the winding nozzle and improving production efficiency.

[0120] Embodiment 5:

[0121] like Figure 1 and Figure 4 As shown, based on any one of Embodiments 1 to 4, further, an even number of stator teeth is used.

[0122] In this embodiment, the number of stator teeth is an even number, and thus the number of stator slots 108 is also an even number, thereby increasing the symmetry of the stator slots 108 and the stator teeth. Furthermore, in combination with the characteristic that a group of stator teeth includes three stator teeth, the total number of stator teeth is a multiple of 6, and the corresponding total number of stator slots 108 is also a multiple of 6, thereby being more conducive to setting fewer bridge wires at the position of the lead-out wire when winding.

[0123] Specifically, the number of stator teeth is 12 and the number of stator slots 108 is 12, or the number of stator teeth is 24 and the number of stator slots 108 is 24.

[0124] Of course, the number of stator teeth can also be an odd number, such as a multiple of 3, and the corresponding total number of stator slots 108 is also a multiple of 3. Specifically, the number of stator teeth is 15 and the number of stator slots 108 is 15, or the number of stator teeth is 27 and the number of stator slots 108 is 27.

[0125] Embodiment 6:

[0126] like Figure 1As shown, on the basis of any one of Examples 1 to 5, further, the stator slot 108 led out by the fifth lead wire 126 and the stator slot 108 corresponding to the first terminal 142 are arranged opposite to each other in the radial direction of the stator core, the stator slot 108 led out by the third lead wire 122 and the stator slot 108 corresponding to the second terminal 144 are arranged opposite to each other in the radial direction of the stator core, and the stator slot 108 led out by the third lead wire 122 and the stator slot 108 corresponding to the third terminal 146 are arranged opposite to each other in the radial direction of the stator core.

[0127] In this embodiment, since the number of stator teeth and stator slots 108 are both even numbers, each stator slot 108 has a stator slot 108 opposite to it based on the radial direction of the stator core, and the first terminal 142, the second terminal 144 and the third terminal 146 are located at the position of the stator yoke, the first terminal 142 is located at the position of the stator yoke corresponding to one stator slot 108, and the stator slot 108 corresponding to the first terminal 142 is opposite to the stator slot 108 from which the fifth lead wire 126 is led, the second terminal 144 is located at the position of the stator yoke corresponding to one stator slot 108, and the stator slot 108 corresponding to the second terminal 144 is opposite to the stator slot 108 from which the third lead wire 122 is led, and the third terminal 146 is located at the position of the stator yoke corresponding to one stator slot 108, and the stator slot 108 corresponding to the third terminal 146 is opposite to the stator slot 108 from which the third lead wire 122 is led.

[0128] Correspondingly, since the first lead wire 118 is connected to the first terminal 142 through the first connecting wire, the third lead wire 122 is connected to the second terminal 144 through the second connecting wire, and the fifth lead wire 126 is connected to the third terminal 146 through the third connecting wire, and the distance between the first terminal 142 and the first lead wire 118, the distance between the second terminal 144 and the third lead wire 122, and the distance between the third lead wire 122 and the fifth terminal are slightly different, when the first connecting wire, the second connecting wire and the third connecting wire are set, the lengths of the three are roughly the same, so that the three connecting wires can be arranged more evenly at one end of the stator core, avoiding local wire accumulation, which is beneficial to reducing the overall axial height of the stator assembly 100.

[0129] Specifically, Figure 1As shown, a stator core including 12 stator teeth and 12 stator slots 108 is taken as an example for explanation, the line head or line tail on the right side of the first winding 112 on the first stator tooth 102 corresponding to the rectangular marking slot is numbered 1, and the line head or line tail on the left side is numbered 2, and along the counterclockwise direction, they are numbered 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24. Specifically, the coil wound on a stator tooth has a wire head and a wire tail. When the coil is wound, the winding direction of the winding nozzle remains unchanged, that is, it is wound completely clockwise or completely counterclockwise, and one of the wire head and the wire tail is located on one side of the stator tooth about which it is wound, and the other of the wire head and the wire tail is located on the other side of the stator tooth about which it is wound, and both the wire head and the wire tail are located at the same end of the stator core. Based on the above winding method, each wire head and wire tail are numbered 1 to 24 in sequence. For convenience of expression, the numbers 1 to 24 are referred to as wire heads below.

[0130] The thread end with number 1 and the thread end with number 2 belong to the same coil wound on the same stator tooth; the thread end with number 3 and the thread end with number 4 belong to the same coil wound on the same stator tooth. Similarly, every two thread ends with the following numbers belong to the same coil.

[0131] like Figure 4 As shown, the stator core can be unfolded at the stator yoke between the wire end labeled 1 and the wire end labeled 24 to form a strip structure, with the wire end labeled 1 at the first position and the wire end labeled 24 at the last position.

[0132] like Figure 4 As shown, the wire end labeled 2 is the first lead wire 118, the wire end labeled 4 is the third lead wire 122, the wire end labeled 6 is the fifth lead wire 126, the wire end labeled 7 is the second lead wire 120, the wire end labeled 9 is the fourth lead wire 124, and the wire end labeled 11 is the sixth lead wire 128.

[0133] The first terminal 142 corresponds to the position of the wire end labeled 18, the third terminal 146 corresponds to the position of the wire end labeled 17, and the second terminal 144 corresponds to the position of the wire end labeled 16. Therefore, when connected, the corresponding lengths of the first connecting wire, the second connecting wire and the third connecting wire are roughly the same, so that the three connecting wires can be arranged more evenly at one end of the stator core, avoiding local accumulation of wires, which is beneficial to reducing the overall axial height of the stator assembly 100.

[0134] Specifically, Figure 5As shown, a stator core including 15 stator teeth and 15 stator slots 108 is taken as an example for explanation, the line head or line tail on the right side of the first winding 112 on the first stator tooth 102 corresponding to the rectangular marking slot is numbered 1, and the line head or line tail on the left side is numbered 2, and along the counterclockwise direction, they are numbered 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. Specifically, a coil wound on a stator tooth has a wire head and a wire tail. When the coil is wound, the winding direction of the winding nozzle remains unchanged, that is, it is wound completely clockwise or completely counterclockwise, and one of the wire head and the wire tail is located on one side of the stator tooth about which it is wound, and the other of the wire head and the wire tail is located on the other side of the stator tooth about which it is wound, and both the wire head and the wire tail are located at the same end of the stator core. Based on the above winding method, each wire head and wire tail are numbered 1 to 30 in sequence. For convenience of expression, the numbers 1 to 30 are all referred to as wire heads below.

[0135] The thread end with number 1 and the thread end with number 2 belong to the same coil wound on the same stator tooth; the thread end with number 3 and the thread end with number 4 belong to the same coil wound on the same stator tooth. Similarly, every two thread ends with the following numbers belong to the same coil.

[0136] The first terminal 142 corresponds to the position of the wire end labeled 22, the third terminal 146 corresponds to the position of the wire end labeled 21, and the second terminal 144 corresponds to the position of the wire end labeled 20. Therefore, when connected, the corresponding lengths of the first connecting wire, the second connecting wire and the third connecting wire are roughly the same, so that the three connecting wires can be arranged more evenly at one end of the stator core, avoiding local accumulation of wires, which is beneficial to reducing the overall axial height of the stator assembly 100.

[0137] Embodiment 7:

[0138] On the basis of Embodiment 6, further, the first connecting wire, the second connecting wire and the third connecting wire are bent along the axial direction of the stator core.

[0139] In this embodiment, the first connecting line, the second connecting line and the third connecting line are all bent, so as to avoid the part where the rotor is set, making the overall routing more neat, and can avoid the bridge line to a certain extent, thereby reducing the axial height of the stator assembly 100.

[0140] Embodiment 8:

[0141] On the basis of Example 7, further, the stator core corresponding to the first connecting wire and the stator core corresponding to the second connecting wire do not overlap; the stator core corresponding to the first connecting wire and the stator core corresponding to the third connecting wire do not overlap.

[0142] In this embodiment, the first connecting wire and the second connecting wire pass through different stator core areas, and the first connecting wire and the third connecting wire also pass through different stator core areas, thereby avoiding excessive local wire accumulation caused by the three connecting wires in the same place, which affects the setting of the rotor or the axial height of the stator assembly 100. In addition, since the first lead wire 118 is one of the first terminals 142 on the edge of the six lead wires, the first connecting wire is separated from the second connecting wire and the third connecting wire, which can reduce the length of the first connecting wire and save costs.

[0143] Furthermore, the stator core corresponding to the second connecting wire and the stator core corresponding to the third connecting wire partially overlap.

[0144] In this embodiment, the second connecting wire and the third connecting wire pass through the same area of ​​the stator core. Since there are fewer bridge wires in the middle positions of the six lead-out wires, the part of the stator core where the second connecting wire and the third connecting wire pass also has fewer bridge wires, thereby making the routing of the winding more uniform and reducing the axial height of the stator core.

[0145] Specifically, Figure 1 As shown, the first connecting line is connected from the line end position of number 2 to the line end position of number 18 in a clockwise direction, spanning a total of 4 stator teeth and 4 stator slots 108, the second connecting line is connected from the line end position of number 4 to the line end position of number 16 in a counterclockwise direction, spanning a total of 6 stator teeth and 6 stator slots 108, and the third connecting line is connected from the line end position of number 6 to the line end position of number 17 in a counterclockwise direction, spanning a total of 6 stator teeth and 6 stator slots 108.

[0146] Therefore, relatively speaking, the maximum length difference between the first connecting line, the second connecting line and the third connecting line is the circumferential length of two stator teeth and two stator slots 108. The overall structure is smaller, which makes it easier to balance the three-phase electricity U, V, and W when acting on the first winding 112, the second winding 114, and the third winding 116, thereby improving the motor effect.

[0147] Specifically, Figure 5 As shown, the first connecting line is connected from the line end position of number 2 to the line end position of number 22 in a clockwise direction, and it spans 5 stator teeth and 5 stator slots 108 in total. The second connecting line is connected from the line end position of number 4 to the line end position of number 20 in a counterclockwise direction, and it spans 8 stator teeth and 8 stator slots 108 in total. The third connecting line is connected from the line end position of number 6 to the line end position of number 21 in a counterclockwise direction, and it spans 7 stator teeth and 7 stator slots 108 in total.

[0148] Therefore, relatively speaking, the maximum length difference between the first connecting line, the second connecting line and the third connecting line is the circumferential length of two stator teeth and two stator slots 108. The overall structure is smaller, which makes it easier to balance the three-phase electricity U, V, and W when acting on the first winding 112, the second winding 114, and the third winding 116, thereby improving the motor effect.

[0149] Embodiment 9:

[0150] like Figure 1 As shown, on the basis of any one of Examples 1 to 8, further, the lead wires are all located at the same end of the stator core, specifically, the first lead wire 118, the second lead wire 120, the third lead wire 122, the fourth lead wire 124, the fifth lead wire 126 and the sixth lead wire 128 are all led out from the same side of the stator slot 108.

[0151] Specifically, the wire ends from the wire end labeled 1 to the wire end labeled 24 are all led out from the same end of the stator core.

[0152] In this embodiment, the first lead wire 118, the second lead wire 120, the third lead wire 122, the fourth lead wire 124, the fifth lead wire 126 and the sixth lead wire 128 are located at the same end of the stator core, so that all the winding lead wires can be completed at the same end of the stator core, which is convenient for the connection between the terminal and the lead wires. In addition, when connecting the lead wires and installing the connecting wires, all operations can be completed on one side of the stator core, which reduces the difficulty of installation and improves production efficiency.

[0153] Specifically, when winding the wire, all the wire ends are at the same end of the stator core, so that the starting position and the stopping position of the winding nozzle can be at the same position, thereby improving the winding efficiency.

[0154] Embodiment 10:

[0155] like Figure 1As shown, on the basis of any one of Examples 1 to 9, further, it also includes: the coils of the first winding 112 located on different first stator teeth 102 are connected via a first bridge line 132, the coils of the second winding 114 located on different second stator teeth 104 are connected via a second bridge line 134, and the coils of the third winding 116 located on different third stator teeth 106 are connected via a third bridge line 136. Specifically, the bridge wire is not connected to the lead wire, that is, the first bridge wire 132 is not connected to the first lead wire 118, the second lead wire 120, the third lead wire 122, the fourth lead wire 124, the fifth lead wire 126 and the sixth lead wire 128, the second bridge wire 134 is not connected to the first lead wire 118, the second lead wire 120, the third lead wire 122, the fourth lead wire 124, the fifth lead wire 126 and the sixth lead wire 128, and the third bridge wire 136 is not connected to the first lead wire 118, the second lead wire 120, the third lead wire 122, the fourth lead wire 124, the fifth lead wire 126 and the sixth lead wire 128.

[0156] In this embodiment, the coils of the first winding 112 on different first stator teeth 102 are connected via a first bridge wire 132, the coils of the second winding 114 on different second stator teeth 104 are connected via a second bridge wire 134, and the coils of the third winding 116 on different third stator teeth 106 are connected via a third bridge wire 136, thereby achieving the integrity of the first winding 112, the second winding 114, and the third winding 116, and reducing the length of the coil wire head and wire tail, which is beneficial to reducing the stroke of the winding nozzle and improving production efficiency.

[0157] There are three first bridge wires 132 , three second bridge wires 134 , and three third bridge wires 136 . The connection method of the above nine bridge wires is consistent with the coil wire ends and wire tails.

[0158] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the line end numbered 1 and the line end numbered 20 are connected via the first bridge line 132 , the line end numbered 19 and the line end numbered 14 are connected via the first bridge line 132 , and the line end numbered 13 and the line end numbered 8 are connected via the first bridge line 132 .

[0159] The wire end numbered 3 and the wire end numbered 22 are connected via a second bridge line 134 , the wire end numbered 21 and the wire end numbered 16 are connected via a second bridge line 134 , and the wire end numbered 15 and the wire end numbered 10 are connected via a second bridge line 134 .

[0160] The line end numbered 5 and the line end numbered 24 are connected via a third bridge line 136 , the line end numbered 23 and the line end numbered 18 are connected via a third bridge line 136 , and the line end numbered 17 and the line end numbered 12 are connected via a third bridge line 136 .

[0161] Among them, the connection order of the neutral wire ends of the first winding 112 is the wire end labeled 2, the wire end labeled 1, the wire end labeled 20, the wire end labeled 19, the wire end labeled 14, the wire end labeled 13, the wire end labeled 8, and the wire end labeled 7.

[0162] The connection order of the neutral wire ends of the second winding 114 is the wire end labeled 4, the wire end labeled 3, the wire end labeled 22, the wire end labeled 21, the wire end labeled 16, the wire end labeled 15, the wire end labeled 10, and the wire end labeled 9.

[0163] The connection order of the neutral wire ends of the third winding 116 is the wire end labeled 6, the wire end labeled 5, the wire end labeled 24, the wire end labeled 23, the wire end labeled 18, the wire end labeled 17, the wire end labeled 12, and the wire end labeled 11.

[0164] Specifically, Figure 1 As shown, there are fewer first bridge wires 132, second bridge wires 134 and third bridge wires 136 between the wire ends of number 1 and number 11, and then at this position, the first lead wire 118 is connected to the sixth lead wire 128, the third lead wire 122 is connected to the second lead wire 120, the fifth lead wire 126 is connected to the fourth lead wire 124, and then there is a stacked between the wire ends of number 6 and number 7 where no bridge wire is set. There are three lead-out wires, two of which are stacked between the wire end labeled 4 and the wire end labeled 5 with a bridge wire setting, two of which are stacked between the wire end labeled 8 and the wire end labeled 9 with a bridge wire setting, one of which is stacked between the wire end labeled 2 and the wire end labeled 3 with two bridge wires setting, and one of which is stacked between the wire end labeled 10 and the wire end labeled 11 with two bridge wires setting.

[0165] In combination with the setting of other bridge wires, three wires are stacked at each wire end position on the entire end face, so that the entire routing is more uniform, which is conducive to reducing the axial height of the stator assembly.

[0166] Specifically, Figure 5 , Figure 6 and Figure 7As shown, the line end numbered 1 and the line end numbered 26 are connected via the first bridge line 132, the line end numbered 25 and the line end numbered 20 are connected via the first bridge line 132, the line end numbered 19 and the line end numbered 14 are connected via the first bridge line 132, and the line end numbered 13 and the line end numbered 8 are connected via the first bridge line 132.

[0167] The line end numbered 3 and the line end numbered 28 are connected via a second bridge line 134, the line end numbered 27 and the line end numbered 22 are connected via a second bridge line 134, the line end numbered 21 and the line end numbered 16 are connected via a second bridge line 134, and the line end numbered 15 and the line end numbered 10 are connected via a second bridge line 134.

[0168] The line end numbered 5 and the line end numbered 30 are connected via the third bridge line 136, the line end numbered 29 and the line end numbered 24 are connected via the third bridge line 136, the line end numbered 23 and the line end numbered 18 are connected via the third bridge line 136, and the line end numbered 17 and the line end numbered 12 are connected via the third bridge line 136.

[0169] Among them, the connection order of the neutral wire ends of the first winding 112 is the wire end numbered 2, the wire end numbered 1, the wire end numbered 26, the wire end numbered 25, the wire end numbered 20, the wire end numbered 19, the wire end numbered 14, the wire end numbered 13, the wire end numbered 8, and the wire end numbered 7.

[0170] The connection order of the neutral wire ends of the second winding 114 is the wire end labeled 4, the wire end labeled 3, the wire end labeled 28, the wire end labeled 27, the wire end labeled 22, the wire end labeled 21, the wire end labeled 16, the wire end labeled 15, the wire end labeled 10, and the wire end labeled 9.

[0171] The connection order of the neutral wire ends of the third winding 116 is the wire end labeled 6, the wire end labeled 5, the wire end labeled 30, the wire end labeled 29, the wire end labeled 24, the wire end labeled 23, the wire end labeled 18, the wire end labeled 17, the wire end labeled 12, and the wire end labeled 11.

[0172] Specifically, Figure 5As shown, there are fewer first bridge wires 132, second bridge wires 134 and third bridge wires 136 between the wire ends of number 1 and number 11, and then at this position, the first lead wire 118 is connected to the sixth lead wire 128, the third lead wire 122 is connected to the second lead wire 120, the fifth lead wire 126 is connected to the fourth lead wire 124, and then there is a stacked between the wire ends of number 6 and number 7 where no bridge wire is set. There are three lead-out wires, two of which are stacked between the wire end labeled 4 and the wire end labeled 5 with a bridge wire setting, two of which are stacked between the wire end labeled 8 and the wire end labeled 9 with a bridge wire setting, one of which is stacked between the wire end labeled 2 and the wire end labeled 3 with two bridge wires setting, and one of which is stacked between the wire end labeled 10 and the wire end labeled 11 with two bridge wires setting.

[0173] In combination with the setting of other bridge wires, three wires are stacked at each wire end position on the entire end face, so that the entire routing is more uniform, which is conducive to reducing the axial height of the stator assembly.

[0174] Embodiment 11:

[0175] like Figure 1 As shown, on the basis of Example 10, further, there are multiple first bridge wires 132, which are respectively connected to the coils on adjacent first stator teeth 102 to form a first winding 112; there are multiple second bridge wires 134, which are respectively connected to the coils on adjacent second stator teeth 104 to form a second winding 114; there are multiple third bridge wires 136, which are respectively connected to the coils on adjacent third stator teeth 106 to form a third winding 116.

[0176] In this embodiment, the first bridge wire 132 connects the first winding 112 on the adjacent first stator tooth 102, so that the length of the first bridge wire 132 can be minimized, the second bridge wire 134 connects the second winding 114 on the adjacent second stator tooth 104, so that the length of the second bridge wire 134 can be minimized, and the third bridge wire 136 connects the third winding 116 on the adjacent third stator tooth 106, so that the length of the third bridge wire 136 can be minimized, which is beneficial to reduce the accumulation of wires and reduce the axial height of the stator assembly 100.

[0177] Embodiment 12:

[0178] The present invention provides a motor, comprising: a stator assembly 100 provided in any of the above embodiments.

[0179] The motor provided by the present invention includes the stator assembly 100 provided by any of the above embodiments, and therefore has all the beneficial effects of the stator assembly 100 provided by any of the above embodiments, which will not be described one by one here.

[0180] Specifically, the motor further includes a rotor assembly, which is inserted into the stator assembly 100 . A magnetic component is disposed on the rotor assembly so as to interact with the magnetic field generated by the stator assembly 100 , thereby causing the rotor assembly to rotate.

[0181] The motor also includes a bearing and a housing, and the rotor assembly is connected to the housing through the bearing, thereby realizing the rotation of the rotor assembly.

[0182] Embodiment 13:

[0183] like Figures 1 to 4 As shown, the stator assembly 100 provided by the present invention includes: a plurality of stator lobes, during the winding process, the stator core can be unfolded into a strip for winding, the stator core is applied to a three-phase motor, and adopts a concentrated winding structure, the stator core includes m stator teeth, specifically 12, the wire head positions of the rectangular marking slots are defined as 1 and 2, along the counterclockwise direction, the marks are 1 to 2, specifically 24, the lead wires of the stator assembly 100 are formed by directly extending and connecting the wires on the winding teeth, the wire heads of the three-phase lead wires are numbered 2, 4, 6, 7, 9, 11 respectively, and the final positions of the three terminals of the three-phase lead wires are 16, 17, 18.

[0184] Furthermore, the first winding 112 , the second winding 114 , and the third winding 116 are connected in a delta connection.

[0185] Furthermore, one of the three phases is formed by connecting the wire end labeled 2 and the wire end labeled 11 , and is led to the position of the wire end labeled 18 , thereby being connected to the first terminal 142 .

[0186] Furthermore, another phase of the three phases is formed by connecting the wire end labeled 4 and the wire end labeled 7, and is led to the position of the wire end labeled 16, thereby being connected to the second terminal 144.

[0187] Furthermore, another phase of the three phases is formed by connecting the wire end labeled 6 and the wire end labeled 9, and is led to the position of the wire end labeled 17, thereby being connected to the third terminal 146.

[0188] Further, the first connecting wire and the second connecting wire bypass different semicircles of the stator core respectively, the first connecting wire and the third connecting wire bypass different semicircles of the stator core respectively, and the second connecting wire and the third connecting wire bypass the same semicircle of the stator core.

[0189] Furthermore, the first bridge wire 132 is formed by directly extending and connecting the wire ends on the first winding 112 .

[0190] Furthermore, the second bridge wire 134 is formed by directly extending and connecting the wire ends on the second winding 114 .

[0191] Furthermore, the third bridge wire 136 is formed by directly extending and connecting the wire ends on the third winding 116 .

[0192] Furthermore, there are three first bridge wires 132 , three second bridge wires 134 , and three third bridge wires 136 . The connection method of the above nine bridge wires is consistent with the coil wire ends.

[0193] Embodiment 14:

[0194] The present invention provides a compressor, comprising: a motor as provided in any of the above embodiments.

[0195] The compressor provided by the present invention includes the motor provided by any of the above embodiments, and therefore has all the beneficial effects of the motor provided by any of the above embodiments, which will not be stated one by one here.

[0196] Specifically, the compressor also includes compression components, such as a cylinder assembly and the like.

[0197] Embodiment 15:

[0198] The present invention provides a vehicle, comprising: a compressor provided by any one of the above embodiments.

[0199] The vehicle provided by the present invention includes the compressor provided by any of the above embodiments, and therefore has all the beneficial effects of the compressor provided by any of the above embodiments, which will not be described one by one here.

[0200] Specifically, the vehicle also includes a frame and wheels, and the compressor can drive the wheels to rotate.

[0201] Furthermore, the compressor can also drive components such as windows and wipers.

[0202] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0203] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0204] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. 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 this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0205] 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 stator assembly, characterized in that: include: A stator core, the stator core comprising a plurality of groups of stator teeth, stator slots being formed between adjacent stator teeth in the plurality of groups of stator teeth, and each group of stator teeth comprising a first stator tooth, a second stator tooth and a third stator tooth which are adjacent in sequence; a first winding, a second winding, and a third winding wound on the stator core, wherein the first winding is wound on the first stator tooth, the second winding is wound on the second stator tooth, and the third winding is wound on the third stator tooth, and the first winding includes a first lead wire and a second lead wire, the second winding includes a third lead wire and a fourth lead wire, and the third winding includes a fifth lead wire and a sixth lead wire, Wherein, the first lead wire, the third lead wire and the fifth lead wire are led out from the sequentially adjacent stator slots, the second lead wire, the fourth lead wire and the sixth lead wire are led out from the sequentially adjacent stator slots, and the fifth lead wire and the second lead wire are led out from the same stator slot; an insulating structure, provided on the stator core, for insulating the stator core from the first winding, the second winding and the third winding, wherein a first terminal, a second terminal and a third terminal are provided on one end surface of the insulating structure, and the first terminal, the third terminal and the second terminal are distributed along the circumference of the stator core; Along the radial direction of the stator core, the first terminal is located opposite to the stator slot from which the fifth lead wire is led; Along the radial direction of the stator core, the second terminal is located opposite to the stator slot from which the third lead wire is led; Along the radial direction of the stator core, the third terminal is located opposite to the stator slot from which the third lead wire is led out.

2. The stator assembly according to claim 1, characterized in that The stator core can be unfolded into a strip shape. When the stator core is unfolded into a strip shape, the first lead wire is led out from the complete stator slot located at the first position.

3. The stator assembly according to claim 1, characterized in that: The first winding, the second winding and the third winding are connected in a delta configuration.

4. The stator assembly according to claim 1, characterized in that: Also includes: A first connecting wire, located at one end of the stator core, connecting the first terminal and the first lead wire; A second connecting wire, located at one end of the stator core, connecting the second terminal and the third lead wire; The third connecting wire is located at one end of the stator core and connects the third terminal and the fifth lead wire.

5. The stator assembly according to claim 1, characterized in that: The number of the stator teeth is 9, 12 or 15.

6. The stator assembly according to claim 4, characterized in that The first connecting wire is bent along the circumference of the stator core; The second connecting wire is bent along the circumference of the stator core; The third connecting wire is bent along the circumferential direction of the stator core.

7. The stator assembly according to claim 6, characterized in that The first lead wire, the second lead wire, the third lead wire, the fourth lead wire, the fifth lead wire and the sixth lead wire are located at the same end of the stator core.

8. The stator assembly according to claim 7, characterized in that The stator core corresponding to the first connecting wire and the stator core corresponding to the second connecting wire do not overlap; The stator core corresponding to the first connecting wire and the stator core corresponding to the third connecting wire do not overlap.

9. The stator assembly according to claim 7, characterized in that: The stator core corresponding to the second connecting wire and the stator core corresponding to the third connecting wire partially overlap.

10. The stator assembly according to any one of claims 1 to 9, characterized in that: Also includes: a first bridge line, connecting the first windings located at different first stator teeth; A second bridge line connecting the second windings located at different second stator teeth; The third bridge line connects the third windings located at different third stator teeth.

11. The stator assembly according to claim 10, characterized in that The first bridge wire connects the first winding on the adjacent first stator tooth; the second bridge wire connects the second winding on the adjacent second stator tooth; and the third bridge wire connects the third winding on the adjacent third stator tooth.

12. A motor, characterized in that: include: A stator assembly as claimed in any one of claims 1 to 11.

13. A compressor, characterized in that: include: The electric machine as claimed in claim 12.

14. A vehicle, characterized in that: include: The compressor of claim 13.

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