Stator structure, motor and washing equipment

Abstract

The utility model provides a stator structure, a motor and washing equipment, and the stator structure comprises an insulating frame which is provided with a limiting column; the stator winding is arranged on the insulating frame, the stator winding comprises a first outgoing line, and the first outgoing line can be in contact with the limiting column; the first terminal is arranged on the insulating frame, the first terminal comprises a welding part, the welding part comprises a welding surface and a wire passing groove, the first outgoing line penetrates through the wire passing groove and is connected with the welding surface, the wire passing groove comprises a first groove wall and a second groove wall which are opposite to each other, and the first groove wall is closer to the center of the stator structure than the second groove wall; in the radial direction of the stator winding, the side face, away from the center of the stator structure, of the limiting column is far away from the center of the stator structure compared with the first groove wall, so that when routing of the first lead-out wire is conducted, the first lead-out wire can abut against the outer wall of the limiting column, contact between the first lead-out wire and the welding part is reduced, and the service life of the first lead-out wire is prolonged. The first outgoing line is prevented from being damaged by sharp edges or burrs of the welding part.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor equipment technical field, specifically, a kind of stator structure, motor and washing equipment. BACKGROUND

[0002] Currently, in the related art, the end of motor winding is welded together through common terminal, generally, the outgoing line of winding end is fixed on the common terminal before welding to avoid the outgoing line from shaking, however, the common terminal is generally metal stamping part, burr is prone to exist on the edge, outgoing line is prone to contact burr and be damaged in the process of wiring, reduce the reliability of electrical connection. SUMMARY

[0003] The embodiment of the utility model aims at at least solving one of the technical problems existing in prior art.

[0004] Therefore, the first aspect of the embodiment of the utility model provides a kind of stator structure.

[0005] The second aspect of the embodiment of the utility model provides a kind of motor.

[0006] The third aspect of the embodiment of the utility model provides a kind of washing equipment.

[0007] Therefore, according to the first aspect of the embodiment of the utility model, a kind of stator structure is provided, and the stator structure includes: insulation frame, the insulation frame is equipped with limiting post;Stator winding, on the insulation frame, the stator winding includes first outgoing line, the first outgoing line can be contacted with the limiting post;First terminal, on the insulation frame, the first terminal includes welding portion, and the welding portion includes welding surface and wire slot, and the first outgoing line passes through wire slot and is connected with welding surface, and wire slot includes opposite first slot wall and second slot wall, and the first slot wall is closer to the center of stator structure compared with the second slot wall;Wherein, along the radial direction of stator winding, the side of limiting post away from the center of stator structure is compared with the first slot wall away from the center of stator structure.

[0008] The stator structure provided by the embodiment of the utility model includes insulation frame, stator winding and first terminal, specifically, the stator winding is arranged on the insulation frame, and the stator winding includes first outgoing line, which can be understood as the outgoing line of the end of the stator winding. Optionally, the number of first outgoing lines is 2, wherein, for three-phase stator winding, the end of one-phase stator winding can lead out one first outgoing line, and the ends of the other two-phase stator windings are connected to lead out another first outgoing line. Optionally, the stator structure further includes a stator core, and the stator core is arranged on the insulation frame. Optionally, the stator core is a strip-shaped core. It can be understood that when the stator winding is wound on the insulation frame, the strip-shaped stator structure can be bent under the action of a bending machine, and the first end and the second end are connected and welded together.

[0009] The first terminal is arranged on the insulating frame, and the insulating frame is optionally provided with a mounting groove, and the mounting portion of the first terminal is arranged in the mounting groove. The first terminal comprises a welding portion, wherein the welding portion comprises a welding surface and a wire passing groove, the first lead-out wire passes through the wire passing groove and is welded on the welding surface. Optionally, the number of the welding portions is two, wherein one of the first lead-out wires is welded on the welding surface of one of the welding portions, and the other of the first lead-out wires is welded on the welding surface of the other welding portion, so as to realize welding of the common terminal of the stator winding.

[0010] The wire passing groove comprises a first groove wall and a second groove wall, wherein the first groove wall is closer to the center of the stator structure than the second groove wall, that is, the first groove wall is an inner groove wall, and the second groove wall is an outer groove wall. Since the side surface of the limiting column away from the center of the stator structure is farther away from the center of the stator structure than the inner groove wall, that is, the distance between the side surface of the limiting column away from the center of the stator structure and the center of the stator structure is greater than the distance between the inner groove wall and the center of the stator structure, so that when the first lead-out wire is routed, the first lead-out wire can be closely arranged on the outer wall of the limiting column, the contact between the first lead-out wire and the welding portion is reduced, the sharp edge or burr of the welding portion is prevented from damaging the first lead-out wire, and the reliability of the electrical connection of the stator structure is ensured.

[0011] In addition, since the first lead-out wire is closely arranged on the outer wall of the limiting column, the position of the first lead-out wire before welding with the welding surface is fixed, the first lead-out wire passes through the welding surface in a straight line, and the stability and consistency of the subsequent welding process are facilitated.

[0012] In addition, according to the stator structure provided in the above technical scheme of the utility model, the following additional technical features are further provided.

[0013] In some technical schemes, the outer wall of the limiting column is provided with a first chamfer, and the first chamfer is used to contact the first lead-out wire.

[0014] In the technical scheme, since the outer wall of the limiting column is provided with the first chamfer, and the first chamfer is used to contact the first lead-out wire, that is, the chamfer transition treatment is performed at the position where the limiting column contacts the first lead-out wire.

[0015] Since the first lead-out wire is closely arranged on the outer wall of the limiting column during winding, the chamfer transition treatment is performed on the outer wall of the limiting column, so that the first lead-out wire can be wound while reducing the strain during winding, and the reliability of the electrical connection of the stator structure is further improved.

[0016] Optionally, in the case where the number of the limiting columns is multiple, the first chamfer is arranged at the position where each limiting column contacts the first lead-out wire.

[0017] In some embodiments, the insulating frame further comprises a support column, which is located at the inner side of the limiting column and opposite to the limiting column along the radial direction of the stator winding, and which is capable of contacting the first lead-out wire.

[0018] In some embodiments, the insulating frame further comprises a support column, which is located at the inner side of the limiting column along the radial direction of the stator winding, and which is capable of contacting the first lead-out wire.

[0019] The support column is capable of contacting the first lead-out wire, so that the support column can share the tension of the first lead-out wire on the limiting column during the wire passing process, thereby reducing the risk of deformation of the limiting column under stress and improving the reliability of the stator structure.

[0020] In some embodiments, the outer wall of the support column is provided with a second chamfer, which is used to contact the first lead-out wire.

[0021] In some embodiments, the outer wall of the support column is provided with a second chamfer, which is used to contact the first lead-out wire.

[0022] The support column is capable of contacting the first lead-out wire, so that the support column can share the tension of the first lead-out wire on the limiting column during the wire passing process, thereby reducing the risk of deformation of the limiting column under stress and improving the reliability of the stator structure.

[0023] In some embodiments, the number of limiting columns is multiple, and at least two limiting columns are located on both sides of the welding portion along the circumferential direction of the stator winding and are oppositely arranged, and at least one limiting column has a side face away from the center of the stator structure, which is farther away from the center of the stator structure than the inner side wall of the wire passing slot.

[0024] In some embodiments, the number of limiting columns is multiple, and at least two limiting columns are located on both sides of the welding portion along the circumferential direction of the stator winding and are oppositely arranged, and at least one limiting column has a side face away from the center of the stator structure, which is farther away from the center of the stator structure than the inner side wall of the wire passing slot.

[0025] In addition, since the at least two limiting columns are located on both sides of the welding portion, the welding portion can be limited, which is conducive to further improving the reliability of the electrical connection of the stator structure.

[0026] In some embodiments, the number of welding portions is two, and the at least two limiting columns are respectively located between the two welding portions and form a wire clamping groove, and the wire clamping groove is in communication with the wire passing groove; wherein the number of the first lead-out wires is two, one of the first lead-out wires respectively passes through the wire clamping groove and the wire passing groove of one of the welding portions and is connected with the welding surface, and the other of the first lead-out wires respectively passes through the wire clamping groove and the wire passing groove of the other of the welding portions and is connected with the welding surface.

[0027] In the embodiments, the number of the welding portions is two, and one of the first lead-out wires respectively passes through the wire clamping groove and the wire passing groove of one of the welding portions and is welded on the welding surface of the welding portion, and in the process, the first lead-out wire is closely attached to the outer wall of the at least one limiting column, so as to avoid the first lead-out wire from contacting the welding portion and damaging the enameled wire. Meanwhile, the other of the first lead-out wires respectively passes through the wire clamping groove and the wire passing groove of the other of the welding portions and is welded on the welding surface of the welding portion, and in the process, the first lead-out wire is closely attached to the outer wall of the at least one limiting column, so as to avoid the first lead-out wire from contacting the welding portion and damaging the enameled wire.

[0028] That is, the at least one limiting column located between the two welding portions is used for fixing the position of one of the first lead-out wires, and the at least one limiting column is used for fixing the position of the other of the first lead-out wires, which is conducive to further improving the electrical connection reliability of the stator structure.

[0029] In some embodiments, the two welding portions include a first welding portion and a second welding portion; and the insulating frame is further provided with a first supporting surface, the first supporting surface is located on the side of the second welding portion away from the first welding portion and can be in contact with the first lead-out wire, and in the axial direction of the stator winding, the first supporting surface is flush with the welding surface of the second welding portion or the first supporting surface is lower than the welding surface of the second welding portion.

[0030] In the embodiments, the insulating frame is further provided with the first supporting surface, and the first supporting surface is located on the side of the second welding portion away from the first welding portion, i.e., the first supporting surface is located on the right side of the second welding portion.

[0031] It can be understood that after the first lead-out wire respectively passes through the wire clamping groove and the wire passing groove, the first lead-out wire enters the inside of the insulating frame through the first supporting surface and continues to be wound. Since the axial height of the first supporting surface is flush with the axial height of the welding surface of the second welding portion or the axial height of the first supporting surface is lower than the axial height of the welding surface of the second welding portion, that is, in the axial direction of the stator winding, the first supporting surface does not exceed the welding surface of the second welding portion, so that in the process of the first lead-out wire, the first lead-out wire can be fully attached to the welding surface of the second welding portion, which is conducive to improving the welding effect and further improving the electrical connection reliability of the stator structure.

[0032] In some embodiments, the insulating frame further comprises a guide surface, which is connected to the first supporting surface and located on the side of the first supporting surface close to the center of the stator structure, and the guide surface is capable of contacting the first lead-out wire.

[0033] In this embodiment, the insulating frame further comprises a guide surface, and specifically, one end of the guide surface is connected to the first supporting surface, and the other end extends inwardly and downwardly, that is, the guide surface is located on the radial inner side of the first supporting surface.

[0034] It can be understood that after the first lead-out wire passes through the wire clamping groove and the wire passing groove, the first lead-out wire enters the interior of the insulating frame through the first supporting surface and the guide surface, and continues to be wound. By arranging the guide surface, the wire passing of the first lead-out wire can be guided, the stress suffered by the first lead-out wire during wire passing can be effectively reduced, the damage to the enameled wire is further reduced, and the electrical connection reliability of the stator structure is improved.

[0035] In some embodiments, the soldering part comprises a body and a plurality of soldering pillars, wherein the body is provided with a soldering surface, and the plurality of soldering pillars are arranged on the body in a spaced manner, and at least two soldering pillars form the wire passing groove.

[0036] In this embodiment, the soldering part comprises a body and a plurality of soldering pillars, and specifically, the soldering pillars are arranged on the body in a spaced manner, and at least two soldering pillars form the wire passing groove. Since the side surface of the limiting column away from the center of the stator structure is farther away from the center of the stator structure than the inner groove wall of the wire passing groove, that is, the distance between the side surface of the limiting column away from the center of the stator structure and the center of the stator structure is greater than the distance between the groove wall of the wire passing groove and the center of the stator structure, and the soldering pillar closer to the center of the stator structure than the other soldering pillars among the plurality of soldering pillars is located between the groove wall of the wire passing groove and the center of the stator structure, when the first lead-out wire is routed, the first lead-out wire can be tightly arranged on the outer wall of the limiting column, the contact between the first lead-out wire and the soldering pillars is reduced, the sharp edges or burrs on the soldering pillars do not damage the first lead-out wire, and the electrical connection reliability of the stator structure is ensured.

[0037] In addition, by arranging the plurality of soldering pillars, during the soldering process of the first lead-out wire, the tin beads can be guided to be flattened and cover the enameled wire, the problems of offset soldering and missing enameled wire during soldering are effectively reduced, and the electrical connection reliability of the stator structure is further improved.

[0038] In some embodiments, the plurality of soldering pillars comprises two first soldering pillars and two second soldering pillars, and along the circumferential direction of the stator winding, the two first soldering pillars and the two second soldering pillars are respectively located on two sides of the body, the two first soldering pillars form a first wire passing groove, the two second soldering pillars form a second wire passing groove, and the first lead-out wire passes through the first wire passing groove and the second wire passing groove respectively.

[0039] In the technical solution, the plurality of tin columns includes two first tin columns and two second tin columns, and specifically, the two first tin columns and the two second tin columns are located on two sides of the body in the circumferential direction, so that the tin beads can be guided to flow to the two sides, which is beneficial to uniformly paving the tin beads on the welding surface and covering the enameled wire, thereby effectively reducing the problems of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure.

[0040] Since the two first tin columns form a first wire passing groove and the two second tin columns form a second wire passing groove, the first lead-out wire passes through the first wire passing groove and the second wire passing groove during the process of the first lead-out wire, so that the first lead-out wire can pass through the welding surface in a straight line, which is beneficial to the stability and consistency of the subsequent welding process between the first lead-out wire and the welding surface.

[0041] In some technical solutions, optionally, the welding part further includes a soldering tin column, and the soldering tin column is arranged on the body and located on a different side of the body from the at least one tin column.

[0042] In the technical solution, the welding part further includes a soldering tin column, and specifically, the soldering tin column is arranged on the body. It can be understood that during the process of welding the first lead-out wire on the welding surface, the tin beads are easy to flow to one side, which causes the tin beads to be not uniformly paved on the welding surface, especially for aluminum enameled wire, the problems of partial soldering and missing enameled wire are easy to occur during the welding process, which affects the electrical connection reliability of the stator structure.

[0043] Since the soldering tin column and the at least one tin column are located on different sides of the body, it is beneficial to guide the tin beads to flow in different directions, so that the tin beads are uniformly paved on the welding surface and cover the enameled wire, thereby effectively reducing the problems of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure.

[0044] In addition, by arranging the soldering tin column, the enameled wire of the stator winding can be arranged as an aluminum enameled wire, which is beneficial to reduce the production cost of the stator structure while ensuring the welding effect.

[0045] In some technical solutions, optionally, the soldering tin column is arranged at intervals from the at least one tin column.

[0046] In the technical solution, since the soldering tin column is arranged at intervals from the at least one tin column, that is, there is a gap between the soldering tin column and the tin column, which is beneficial to reduce the manufacturing difficulty of the first terminal, improve the production efficiency of the stator structure, and reduce the production cost of the stator structure.

[0047] In some technical solutions, optionally, the number of soldering tin columns is a plurality, and at least two soldering tin columns are located on opposite sides of the body.

[0048] In the technical solution, the number of the soldering columns is defined as multiple, and specifically, at least two soldering columns are respectively located on opposite sides of the body. Since the soldering columns and the soldering columns are respectively located on different sides of the body, that is, the soldering columns and the soldering columns are respectively arranged around the body, during the soldering process, the tin beads can be guided to flow around the soldering surface, so that the tin beads are evenly laid on the soldering surface to cover the enameled wire, further reducing the problems of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure.

[0049] In addition, by arranging multiple soldering columns, the enameled wire of the stator winding can be arranged as an aluminum enameled wire, which is conducive to reducing the production cost of the stator structure while ensuring the soldering effect.

[0050] In some technical solutions, the insulating frame further has a shielding portion, which is located on the inner side of the soldering portion along the radial direction of the stator winding and at least partially opposite to the soldering surface.

[0051] In the technical solution, the insulating frame further has a shielding portion, and specifically, the shielding portion is located on the radial inner side of the soldering portion, and at least a part of the shielding portion is opposite to the soldering surface.

[0052] It can be understood that during the soldering of the first lead-out wire on the soldering surface, the soldering surface has tin beads, and by arranging the shielding portion on the radial inner side of the soldering portion, the tin beads can be blocked from flowing inward to the stator winding, which is conducive to further improving the reliability of the stator structure.

[0053] In addition, before soldering, the insulating layer on the surface of the first lead-out wire is generally melted by using a heat source, and by arranging the shielding portion on the radial inner side of the soldering portion, the heat source can also be blocked, so as to avoid damage to the inner stator winding by the heat source, which is conducive to further improving the reliability of the stator structure.

[0054] In some technical solutions, the first terminal further includes a mounting portion, which is arranged on the insulating frame and connected with the soldering portion; and the connection between the mounting portion and the soldering portion is opposite to at least part of the shielding portion.

[0055] In the technical solution, the first terminal further includes a mounting portion, and specifically, the mounting portion is arranged on the insulating frame and connected with the soldering portion. Optionally, when the number of the soldering portions is two, the mounting portion is located between the two soldering portions, and the two ends of the mounting portion are respectively connected with the two soldering portions.

[0056] It can be understood that the soldering portion is distributed with the tin column and the soldering tin column on the side, which can block the tin beads and the heat source on the soldering surface, so that the tin beads and the heat source flow out through the connection between the mounting portion and the soldering portion. By being opposite to the connection, the blocking effect of the blocking portion can be improved, so that the tin beads can be blocked from flowing inward to the stator winding, and the heat source can also be blocked to avoid damaging the stator winding on the inner side, which is beneficial to further improving the reliability of the stator structure.

[0057] Optionally, the soldering portion and the mounting portion are an integral structure.

[0058] In some technical solutions, optionally, the insulating frame is further provided with a second supporting surface, and the soldering portion is arranged on the second supporting surface, and a side surface of the soldering portion away from the first lead-out wire is attached to the second supporting surface.

[0059] In the technical solution, the insulating frame is further provided with a second supporting surface, specifically, the soldering portion is arranged on the second supporting surface, and a side surface of the soldering portion away from the first lead-out wire is attached to the second supporting surface, that is, the bottom surface of the soldering portion is attached to the second supporting surface, which is beneficial to ensuring the assembly stability between the first terminal and the insulating frame, and further beneficial to improving the reliability of the stator structure.

[0060] In some technical solutions, optionally, the stator winding further comprises a second lead-out wire, and the stator structure further comprises a lead-out seat and a second terminal, wherein the lead-out seat is arranged on the insulating frame, the second terminal is arranged on the lead-out seat and partially exposed to the lead-out seat, and the second lead-out wire is arranged on the second terminal.

[0061] In the technical solution, the stator structure further comprises a lead-out seat and a second terminal, specifically, the lead-out seat is arranged on the insulating frame, the second terminal is arranged on the lead-out seat, and a part of the second terminal is exposed to the lead-out seat. The second lead-out wire is arranged on the second terminal, and the part of the second terminal exposed to the lead-out seat can be connected to the connector of the whole washing equipment, that is, the second lead-out wire is electrically connected to the power supply through the second terminal.

[0062] Optionally, the number of the second lead-out wires is three, and it can be understood that the second terminal corresponds to the second lead-out wire one by one.

[0063] According to the second aspect of the utility model, a motor is provided, which comprises the stator structure provided in any of the above technical solutions, so as to have all the beneficial technical effects of the stator structure, which will not be repeated here.

[0064] According to the third aspect of the utility model, a washing equipment is provided, which comprises the stator structure or the motor provided in any of the above technical solutions, so as to have all the beneficial technical effects of the stator structure or the motor, which will not be repeated here.

[0065] Additional aspects and advantages of the present application will be described in the following description part, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0066] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0067] Figure 1 Fig. 1 shows a structural schematic view of a stator structure according to one embodiment of the present application;

[0068] Figure 2 Fig. 2 shows an enlarged view of the stator structure at A of the embodiment shown in Fig. 1; Figure 1

[0069] Figure 3 Fig. 3 shows a structural schematic view of a stator structure according to another embodiment of the present application;

[0070] Figure 4 Fig. 4 shows an enlarged view of the stator structure at B of the embodiment shown in Fig. 3; Figure 3

[0071] Figure 5 Fig. 5 shows a partial exploded view of a stator structure according to one embodiment of the present application;

[0072] Figure 6 Fig. 6 shows a partial structural schematic view of an insulation frame according to one embodiment of the present application;

[0073] Figure 7 Fig. 7 shows a partial structural schematic view of an insulation frame according to another embodiment of the present application;

[0074] Figure 8 Fig. 8 shows a partial structural schematic view of an insulation frame according to another embodiment of the present application;

[0075] Figure 9 Fig. 9 shows a structural schematic view of a first terminal according to one embodiment of the present application;

[0076] Figure 10 Fig. 10 shows a structural schematic view of a stator structure according to another embodiment of the present application;

[0077] Figure 11 Fig. 11 shows an enlarged view of the stator structure at C of the embodiment shown in Fig. 10; Figure 10

[0078] Figure 12 ​​​Fig. 4 shows a structural schematic diagram of a stator structure according to an embodiment of the present application;

[0079] Figure 13 Fig. 5 shows a structural schematic diagram of a stator structure according to an embodiment of the present application.

[0080] wherein, Figures 1 to 13 The correspondence between the reference signs and the component names is as follows:

[0081] 100 stator structure, 110 insulation frame, 111 limiting column, 112 supporting column, 113 first supporting surface, 114 guiding surface, 115 shielding part, 116 second supporting surface, 120 stator winding, 121 first lead-out wire, 122 second lead-out wire, 130 first terminal, 131 welding part, 132 welding surface, 133 wire passing groove, 134 first groove wall, 135 second groove wall, 136 body, 137 tin stacking column, 138 first tin stacking column, 139 second tin stacking column, 150 first chamfer, 160 second chamfer, 170 wire clamping groove, 180 first welding part, 190 second welding part, 210 first wire passing groove, 220 second wire passing groove, 230 soldering column, 240 mounting part, 250 wire outlet seat, 260 second terminal. DETAILED DESCRIPTION

[0082] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the 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.

[0083] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0084] The stator structure 100, the motor and the washing equipment according to some embodiments of the present application will be described below with reference to the accompanying drawings. Figures 1 to 13

[0085] In an embodiment according to the present application, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 ​As shown, a stator structure 100 is provided, which comprises: an insulating frame 110, which is provided with a limiting column 111; a stator winding 120, which is arranged on the insulating frame 110, and comprises a first lead-out wire 121, which can be in contact with the limiting column 111; and a first terminal 130, which is arranged on the insulating frame 110, and comprises a welding portion 131, which comprises a welding surface 132 and a wire passing groove 133, the first lead-out wire 121 passes through the wire passing groove 133 and is connected to the welding surface 132, and the wire passing groove 133 comprises opposite first and second groove walls 134 and 135, and the first groove wall 134 is closer to the center of the stator structure 100 than the second groove wall 135.

[0086] The stator structure 100 provided in the embodiment of the utility model comprises the insulating frame 110, the stator winding 120 and the first terminal 130, specifically, the stator winding 120 is arranged on the insulating frame 110, and the stator winding 120 comprises the first lead-out wire 121, and it can be understood that the first lead-out wire 121 is a lead-out wire at the end of the stator winding 120. Optionally, the number of the first lead-out wire 121 is two, and for a three-phase stator winding 120, one first lead-out wire 121 can be led out at the end of one phase of the stator winding 120, and another first lead-out wire 121 can be led out after the ends of the other two phases of the stator winding 120 are connected. Optionally, the stator structure 100 further comprises a stator core, which is arranged on the insulating frame 110. Optionally, the stator core is a strip-shaped core. It can be understood that after the stator winding 120 is wound on the insulating frame 110, the strip-shaped stator structure 100 can be bent round under the action of a bending machine, and the beginning and the end are connected and welded together.

[0087] The first terminal 130 is arranged on the insulating frame 110, and optionally, the insulating frame 110 is further provided with a mounting groove, and the mounting portion 240 of the first terminal 130 is arranged in the mounting groove. The first terminal 130 comprises the welding portion 131, wherein the welding portion 131 comprises the welding surface 132 and the wire passing groove 133, the first lead-out wire 121 passes through the wire passing groove 133 and is welded on the welding surface 132. Optionally, the number of the welding portion 131 is two, one first lead-out wire 121 is welded on the welding surface 132 of one welding portion 131, and the other first lead-out wire 121 is welded on the welding surface 132 of the other welding portion 131, so as to realize welding of the common end of the stator winding 120.

[0088] The wire slot 133 includes a first slot wall 134 and a second slot wall 135, wherein the first slot wall 134 is closer to the center O of the stator structure 100 than the second slot wall 135, that is, the first slot wall 134 is an inner slot wall, and the second slot wall 135 is an outer slot wall. Since the side of the limiting column 111 away from the center of the stator structure 100 is farther away from the center O of the stator structure 100 than the inner slot wall, that is, the distance between the side of the limiting column 111 away from the center of the stator structure 100 and the center of the stator structure 100 is greater than the distance between the inner slot wall and the center of the stator structure 100, when the first lead-out wire 121 is routed, the first lead-out wire 121 can be closely attached to the outer wall of the limiting column 111, reducing the contact between the first lead-out wire 121 and the welding portion 131, avoiding damage to the first lead-out wire 121 by the sharp edges or burrs of the welding portion 131, and ensuring the reliability of the electrical connection of the stator structure 100.

[0089] In addition, since the first lead-out wire 121 is closely attached to the outer wall of the limiting column 111, the position of the first lead-out wire 121 before welding with the welding surface 132 can be fixed, so that the first lead-out wire 121 passes through the welding surface 132 in a straight line, which is beneficial to ensure the stability and consistency of the subsequent welding process.

[0090] As shown in Figure 5 and Figure 6 , in some embodiments, the outer wall of the limiting column 111 is provided with a first chamfer 150 for contacting the first lead-out wire 121.

[0091] In this embodiment, since the outer wall of the limiting column 111 is provided with the first chamfer 150 for contacting the first lead-out wire 121, that is, the chamfer transition treatment is performed at the position where the limiting column 111 contacts the first lead-out wire 121.

[0092] Since the first lead-out wire 121 is closely attached to the outer wall of the limiting column 111 during winding, by chamfering the outer wall of the limiting column 111, the first lead-out wire 121 can be wound while reducing the strain during winding, further improving the reliability of the electrical connection of the stator structure 100.

[0093] Optionally, when the number of limiting columns 111 is multiple, the position where each limiting column 111 contacts the first lead-out wire 121 is provided with a first chamfer 150.

[0094] As shown in Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, in some embodiments, optionally, the insulating frame 110 is also provided with a support column 112. Along the radial direction of the stator winding 120, the support column 112 is located inside the limiting column 111 and is opposite to the limiting column 111. The support column 112 can contact the first lead wire 121.

[0095] In this embodiment, the insulating frame 110 is further provided with a support column 112. Specifically, the support column 112 is located radially inside the limiting column 111, and the support column 112 is opposite to the limiting column 111.

[0096] Since the support column 112 is in contact with the first lead wire 121, the support column 112 can share the tension of the first lead wire 121 on the limiting column 111 during the wire passing process, reduce the risk of deformation of the limiting column 111 under stress, improve the reliability of the stator structure 100, and by setting the support column 112, the structural strength of the insulation frame 110 can also be improved, which can play the role of a reinforcing rib.

[0097] like Figure 5 and Figure 6 As shown, in some embodiments, optionally, the outer wall of the support column 112 is provided with a second chamfer 160, which is used to contact the first lead wire 121.

[0098] In this embodiment, since the outer wall of the support column 112 is provided with a second chamfer 160, and the second chamfer 160 is used to contact the first lead wire 121, that is, a chamfer transition is performed at the position where the support column 112 contacts the first lead wire 121.

[0099] During winding, the support column 112 is used to share the tension of the first lead 121 on the limiting column 111 during the winding process. By performing chamfering transition on the outer wall of the support column 112, the winding process is facilitated, and the damage to the first lead 121 during the winding process can be further reduced, thereby improving the reliability of the electrical connection of the stator structure 100.

[0100] like Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, optionally, there are multiple limiting posts 111. Along the circumference of the stator winding 120, at least two limiting posts 111 are located on both sides of the welded portion 131 and are arranged opposite to each other. Along the radial direction of the stator winding 120, at least one limiting post 111 has a side facing away from the center of the stator structure 100 that is further away from the center of the stator structure 100 than the first slot wall 134.

[0101] In this embodiment, the number of limiting columns 111 is defined as multiple, specifically, at least two limiting columns 111 are respectively located on both sides of the welding portion 131 along the circumferential direction of the stator winding 120, and are oppositely arranged. Since the side of at least one limiting column 111 away from the center of the stator structure 100 is farther away from the center of the stator structure 100 than the inner side wall of the wire passing groove 133, when the first lead-out wire 121 is routed, the first lead-out wire 121 can be closely arranged on the outer wall of the at least two limiting columns 111, further reducing the contact between the first lead-out wire 121 and the welding portion 131, avoiding damage to the first lead-out wire 121 by the sharp edges or burrs of the welding portion 131, and ensuring the reliability of the electrical connection of the stator structure 100.

[0102] In addition, since the at least two limiting columns 111 are respectively located on both sides of the welding portion 131, the welding portion 131 can also be limited, which is beneficial to further improve the reliability of the electrical connection of the stator structure 100.

[0103] As shown in Figure 2 , Figure 4 , Figure 5 and Figure 9 , in some embodiments, optionally, the number of welding portions 131 is two, and at least two limiting columns 111 are respectively located between the two welding portions 131 and form a wire clamping groove 170, which is in communication with the wire passing groove 133; wherein the number of first lead-out wires 121 is two, one of the first lead-out wires 121 respectively passes through the wire clamping groove 170 and the wire passing groove 133 of one of the welding portions 131, and is connected with the welding surface 132, and the other first lead-out wire 121 respectively passes through the wire clamping groove 170 and the wire passing groove 133 of the other welding portion 131, and is connected with the welding surface 132.

[0104] In this embodiment, the number of welding portions 131 is defined as two, specifically, at least two limiting columns 111 are respectively located between the two welding portions 131, one of the first lead-out wires 121 respectively passes through the wire clamping groove 170 and the wire passing groove 133 of one of the welding portions 131, and is welded on the welding surface 132 of the welding portion 131, in the process, the first lead-out wire 121 is closely arranged on the outer wall of the at least one limiting column 111, thereby avoiding damage to the enameled wire by contacting the welding portion 131. At the same time, the other first lead-out wire 121 respectively passes through the wire clamping groove 170 and the wire passing groove 133 of the other welding portion 131, and is welded on the welding surface 132 of the welding portion 131, in the process, the first lead-out wire 121 is closely arranged on the outer wall of the at least one limiting column 111, thereby avoiding damage to the enameled wire by contacting the welding portion 131.

[0105] That is, at least one limiting column 111 between the two welding portions 131 is used for position fixing of one of the first lead-out wires 121, and at least one limiting column 111 is used for position fixing of the other first lead-out wire 121, which is beneficial to further improve the electrical connection reliability of the stator structure 100.

[0106] As shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 indicate that, in some embodiments, optionally, the two welding portions 131 include a first welding portion 180 and a second welding portion 190; the insulating frame 110 is further provided with a first supporting surface 113, the first supporting surface 113 is located on the side of the second welding portion 190 away from the first welding portion 180, and can be in contact with the first lead-out wire 121; in the axial direction of the stator winding 120, the first supporting surface 113 is flush with the welding surface 132 of the second welding portion 190, or the first supporting surface 113 is lower than the welding surface 132 of the second welding portion 190.

[0107] In this embodiment, it is defined that the insulating frame 110 is further provided with a first supporting surface 113, specifically, the first supporting surface 113 is located on the side of the second welding portion 190 away from the first welding portion 180, that is, the first supporting surface 113 is located on the right side of the second welding portion 190.

[0108] It can be understood that after the first lead-out wire 121 passes through the wire clamping groove 170 and the wire passing groove 133, it enters the inside of the insulating frame 110 through the first supporting surface 113 and continues to wind. Since the axial height of the first supporting surface 113 is flush with the axial height of the welding surface 132 of the second welding portion 190, or the axial height of the first supporting surface 113 is lower than the axial height of the welding surface 132 of the second welding portion 190, that is, in the axial direction of the stator winding 120, the first supporting surface 113 does not exceed the welding surface 132 of the second welding portion 190, so that in the process of the first lead-out wire 121 wiring, the first lead-out wire 121 can be fully attached to the welding surface 132 of the second welding portion 190, which is beneficial to improve the welding effect and further improve the electrical connection reliability of the stator structure 100.

[0109] As shown in Figure 6 and Figure 7 indicate that, in some embodiments, optionally, the insulating frame 110 is further provided with a guide surface 114, the guide surface 114 is connected with the first supporting surface 113 and located on the side of the first supporting surface 113 close to the center of the stator structure 100, and the guide surface 114 can be in contact with the first lead-out wire 121.

[0110] In this embodiment, the insulating frame 110 further comprises a guide surface 114, specifically, one end of the guide surface 114 is connected to the first support surface 113, and the other end extends inwardly and downwardly, that is, the guide surface 114 is located radially inward of the first support surface 113.

[0111] It can be understood that after the first lead-out wire 121 passes through the clamping groove 170 and the wire passing groove 133, respectively, and then enters the interior of the insulating frame 110 through the first support surface 113 and the guide surface 114, respectively, the first lead-out wire 121 continues to be wound. By arranging the guide surface 114, the wire passing of the first lead-out wire 121 can be guided, effectively reducing the stress suffered by the first lead-out wire 121 when passing through the wire, further reducing the damage to the enameled wire, and improving the electrical connection reliability of the stator structure 100.

[0112] As shown in FIGS. Figure 5 and Figure 9 In some embodiments, the soldering portion 131 comprises a body 136 and a plurality of stacked solder columns 137, wherein the body 136 is provided with the soldering surface 132, and the plurality of stacked solder columns 137 are arranged on the body 136 at intervals, and at least two stacked solder columns 137 form the wire passing groove 133.

[0113] In this embodiment, the soldering portion 131 comprises the body 136 and the plurality of stacked solder columns 137, specifically, the stacked solder columns 137 are arranged on the body 136 at intervals, and at least two stacked solder columns 137 form the wire passing groove 133. Since the side surface of the limiting column 111 away from the center of the stator structure 100 is farther away from the center of the stator structure 100 than the inner side groove wall of the wire passing groove 133, that is, the distance between the side surface of the limiting column 111 away from the center of the stator structure 100 and the center of the stator structure 100 is greater than the distance between the groove wall of the wire passing groove 133 and the center of the stator structure 100 for the stacked solder column 137 among the plurality of stacked solder columns 137 that is closer to the center of the stator structure 100 than the rest of the stacked solder columns 137, when the first lead-out wire 121 is routed, the first lead-out wire 121 can be tightly attached to the outer wall of the limiting column 111, reducing the contact between the first lead-out wire 121 and the stacked solder columns 137, avoiding the sharp edges or burrs on the stacked solder columns 137 from damaging the first lead-out wire 121, and ensuring the electrical connection reliability of the stator structure 100.

[0114] In addition, by arranging the plurality of stacked solder columns 137, during the soldering process of the first lead-out wire 121, the tin beads can be guided to be flattened and cover the enameled wire, effectively reducing the problems of partial soldering and missing enameled wire during soldering, and further improving the electrical connection reliability of the stator structure 100.

[0115] As shown in FIGS. Figure 5 and Figure 9As shown in FIG. 1, in some embodiments, optionally, the plurality of tin pillars 137 includes two first tin pillars 138 and two second tin pillars 139, which are respectively located on two sides of the body 136 along the circumference of the stator winding 120, and the two first tin pillars 138 form the first wire passing groove 210, and the two second tin pillars 139 form the second wire passing groove 220, and the first lead-out wire 121 passes through the first wire passing groove 210 and the second wire passing groove 220 respectively.

[0116] In this embodiment, the plurality of tin pillars 137 is defined as including two first tin pillars 138 and two second tin pillars 139, and specifically, the two first tin pillars 138 and the two second tin pillars 139 are respectively located on two sides of the body 136 along the circumference, so as to guide the tin beads to flow to the two sides, which is conducive to uniformly paving the tin beads on the soldering surface 132 to cover the enameled wire, thereby effectively reducing the problems of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0117] Since the two first tin pillars 138 form the first wire passing groove 210, and the two second tin pillars 139 form the second wire passing groove 220, during the process of routing the first lead-out wire 121, the first lead-out wire 121 passes through the first wire passing groove 210 and the second wire passing groove 220 respectively, so as to make the first lead-out wire 121 pass through the soldering surface 132 in a straight line, which is conducive to the stability and consistency of the subsequent soldering process between the first lead-out wire 121 and the soldering surface 132.

[0118] As shown in FIG. 1, in some embodiments, optionally, the soldering part 131 further includes a soldering pillar 230, which is arranged on the body 136 and is located on a different side of the body 136 from the at least one tin pillar 137. Figure 5 Figure 9 As shown in FIG. 1, in some embodiments, optionally, the soldering part 131 further includes a soldering pillar 230, which is arranged on the body 136 and is located on a different side of the body 136 from the at least one tin pillar 137.

[0119] In this embodiment, the soldering part 131 further includes a soldering pillar 230, and specifically, the soldering pillar 230 is arranged on the body 136. It can be understood that during the process of soldering the first lead-out wire 121 on the soldering surface 132, the tin beads are easy to flow to one side, which causes the tin beads to be not uniformly paved on the soldering surface 132, especially for the aluminum enameled wire, the problems of partial soldering and missing enameled wire are easy to occur during the soldering process, which affects the electrical connection reliability of the stator structure 100.

[0120] Since the soldering pillar 230 and the at least one tin pillar 137 are respectively located on different sides of the body 136, it is conducive to guiding the tin beads to flow in different directions, so as to make the tin beads uniformly paved on the soldering surface 132 to cover the enameled wire, thereby effectively reducing the problems of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0121] ​In addition, by arranging the soldering column 230, the enameled wire of the stator winding 120 can be arranged as an aluminum enameled wire, which helps to reduce the production cost of the stator structure 100 while ensuring the soldering effect.

[0122] In some embodiments, optionally, the soldering column 230 is arranged spaced apart from the at least one stacking tin column 137.

[0123] In this embodiment, since the soldering column 230 is arranged spaced apart from the at least one stacking tin column 137, that is, there is a gap between the soldering column 230 and the stacking tin column 137, which helps to reduce the manufacturing difficulty of the first terminal 130, improve the production efficiency of the stator structure 100, and reduce the production cost of the stator structure 100.

[0124] As shown in Figure 5 and Figure 9 , in some embodiments, optionally, the number of soldering columns 230 is multiple, and at least two soldering columns 230 are respectively located on opposite sides of the body 136.

[0125] In this embodiment, the number of soldering columns 230 is limited to multiple, and specifically, at least two soldering columns 230 are respectively located on opposite sides of the body 136. Since the soldering column 230 and the stacking tin column 137 are respectively located on different sides of the body 136, that is, the stacking tin column 137 and the soldering column 230 are respectively arranged around the body 136, during the soldering process, the tin beads can be guided to flow around the soldering surface 132, so that the tin beads are evenly laid on the soldering surface 132 and cover the enameled wire, further reducing the problem of partial soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0126] In addition, by arranging multiple soldering columns 230, the enameled wire of the stator winding 120 can be arranged as an aluminum enameled wire, which helps to reduce the production cost of the stator structure 100 while ensuring the soldering effect.

[0127] As shown in Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , in some embodiments, optionally, the insulating frame 110 is further provided with a shielding portion 115, which is located on the inner side of the soldering portion 131 along the radial direction of the stator winding 120, and at least partially opposite to the soldering surface 132.

[0128] In this embodiment, the insulating frame 110 is further provided with a shielding portion 115, and specifically, the shielding portion 115 is located on the radial inner side of the soldering portion 131, and at least a part of the shielding portion 115 is opposite to the soldering surface 132.

[0129] It can be understood that in the process of welding the first lead-out wire 121 on the welding surface 132, the welding surface 132 has tin beads, by arranging the shielding part 115 on the radially inner side of the welding part 131, the tin beads can be blocked from flowing inward to the stator winding 120, which is beneficial to further improve the reliability of the stator structure 100.

[0130] In addition, before welding, the insulating layer on the surface of the first lead-out wire 121 is generally melted by using a heat source, by arranging the shielding part 115 on the radially inner side of the welding part 131, the heat source can also be blocked, avoiding the heat source from damaging the stator winding 120 on the inner side, which is beneficial to further improve the reliability of the stator structure 100.

[0131] As shown in Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , in some embodiments, optionally, the first terminal 130 further comprises a mounting part 240, the mounting part 240 is arranged on the insulating frame 110 and connected with the welding part 131; wherein the connection between the mounting part 240 and the welding part 131 is opposite to at least part of the shielding part 115.

[0132] In this embodiment, it is defined that the first terminal 130 further comprises a mounting part 240, specifically, the mounting part 240 is arranged on the insulating frame 110, and the mounting part 240 is connected with the welding part 131. Optionally, in the case that the number of the welding part 131 is two, the mounting part 240 is located between the two welding parts 131, and the two ends of the mounting part 240 are connected with the two welding parts 131 respectively.

[0133] It can be understood that the welding part 131 is distributed with the tin column 137 and the solder column 230 on the circumferential side, which can play a certain blocking effect on the tin beads on the welding surface 132 and the heat source, so that the tin beads and the heat source are easy to flow out through the connection between the mounting part 240 and the welding part 131, by arranging the shielding part 115 opposite to the connection, the blocking effect of the shielding part 115 can be improved, so that the tin beads can be blocked from flowing inward to the stator winding 120, and the heat source can also be blocked, avoiding the heat source from damaging the stator winding 120 on the inner side, which is beneficial to further improve the reliability of the stator structure 100.

[0134] Optionally, the welding part 131 and the mounting part 240 are an integral structure.

[0135] As shown in Figure 5 , Figure 6 , Figure 7 and Figure 8As shown in some embodiments, optionally, the insulating frame 110 is further provided with a second support surface 116, and the welding portion 131 is arranged on the second support surface 116, and a side of the welding portion 131 away from the first lead-out wire 121 is attached to the second support surface 116.

[0136] In this embodiment, it is defined that the insulating frame 110 is further provided with a second support surface 116, and specifically, the welding portion 131 is arranged on the second support surface 116, and a side of the welding portion 131 away from the first lead-out wire 121 is attached to the second support surface 116, that is, the bottom surface of the welding portion 131 is attached to the second support surface 116, which is beneficial to ensure the assembly stability between the first terminal 130 and the insulating frame 110, and thus is beneficial to improve the reliability of the stator structure 100.

[0137] As shown in some embodiments, optionally, the stator winding 120 further comprises a second lead-out wire 122, and the stator structure 100 further comprises a lead-out seat 250 and a second terminal 260, wherein the lead-out seat 250 is arranged on the insulating frame 110, the second terminal 260 is arranged on the lead-out seat 250 and partially exposed to the lead-out seat 250, and the second lead-out wire 122 is arranged on the second terminal 260. Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown in some embodiments, optionally, the stator winding 120 further comprises a second lead-out wire 122, and the stator structure 100 further comprises a lead-out seat 250 and a second terminal 260, wherein the lead-out seat 250 is arranged on the insulating frame 110, the second terminal 260 is arranged on the lead-out seat 250 and partially exposed to the lead-out seat 250, and the second lead-out wire 122 is arranged on the second terminal 260.

[0138] In this embodiment, it is defined that the stator structure 100 further comprises a lead-out seat 250 and a second terminal 260, and specifically, the lead-out seat 250 is arranged on the insulating frame 110, and the second terminal 260 is arranged on the lead-out seat 250 and partially exposed to the lead-out seat 250. The second lead-out wire 122 is arranged on the second terminal 260, and the part of the second terminal 260 exposed to the lead-out seat 250 can be connected to the connector of the washing equipment, that is, the second lead-out wire 122 is electrically connected to the power supply through the second terminal 260.

[0139] Optionally, the number of second lead-out wires 122 is 3, and it can be understood that the second terminal 260 corresponds to the second lead-out wire 122 one by one.

[0140] In a specific embodiment, optionally, the insulating frame 110 comprises a winding support portion and a pin mounting portion, and the pin mounting portion is located above the winding support portion. The winding support portion is provided with a winding (stator winding 120) for winding and insulation. The pin mounting portion is used for mounting the pin (first terminal 130) and fixing the winding lead-out wire (first lead-out wire 121). The pin mounting portion has a pin mounting groove, a pin pad support portion (second support surface 116), a plurality of wire blocking columns (limiting columns 111), and a wire passing support portion (supporting column 112).

[0141] The common end pin (the first terminal 130) is composed of a left soldering part (the first soldering part 180), a right soldering part (the second soldering part 190) and a mounting part 240, the mounting part 240 connects the left soldering part and the right soldering part, and realizes the electrical connection between the left soldering part and the right soldering part. The common end pin is mounted in the pin mounting groove of the insulating frame 110. The soldering part 131 is mounted on and in close contact with the pin soldering disc support part (the second support surface 116) of the insulating frame 110. A phase winding lead-out wire (the first lead-out wire 121) passes from the left side of the right soldering disc and is soldered together with the right soldering disc. Another phase winding lead-out wire (the first lead-out wire 121) passes from the right side of the left soldering disc and is soldered together with the left soldering disc, so as to realize the soldering of the winding three-phase lead-out wire and the common end (the first terminal 130).

[0142] The right side of the insulating frame 110 has two wire blocking columns (the limiting columns 111), a support part (the first support surface 113) and a slope (the guide surface 114). One of the wire blocking columns (the limiting column 111) is located on the left side of the right pin soldering disc support part, and the other wire blocking column (the limiting column 111) is located on the right side of the right pin soldering disc support part, and the two wire blocking columns (the limiting columns 111) limit the right side winding lead-out wire (the first lead-out wire 121). When the right side winding lead-out wire passes through the wire, it first passes through the wire by abutting against one of the wire blocking columns (the limiting columns 111), then passes through the pin right soldering disc (the second soldering part 190), and then passes through the other wire blocking column (the limiting column 111). The winding abuts against the two wire blocking columns (the limiting columns 111), so that the enameled wire presents a straight line passing through the right soldering disc, and the position of the enameled wire is fixed, which is beneficial to the stability and consistency of the subsequent soldering process between the enameled wire and the pin. Moreover, the winding abuts against the two wire blocking columns (the limiting columns 111), so as to prevent the first lead-out wire from contacting the sharp edge of the metal pin (the first terminal 130) and avoid the damage of the enameled wire. Then, the enameled wire (the first lead-out wire 121) passes through the support part (the first support surface 113), and then is bent by abutting against the other wire blocking column (the limiting column 111) and enters the frame (the insulating frame 110) along the slope (the guide surface 114) to continue the winding. In order to facilitate the winding and reduce the strain of the enameled wire in the winding process, the edges of the two wire blocking columns (the limiting columns 111) in contact with the enameled wire are chamfered (the first chamfer 150).

[0143] The left winding lead-out wire (the first lead-out wire 121) is first wound against the wire passing support column (the support column 112), and then against the limiting column 111 and the pin stacking tin column (the second stacking tin column 139). The limiting column 111 and the pin stacking tin column (the second stacking tin column 139) limit the left winding lead-out wire, so that the enameled wire presents a straight line passing through the left pad, so that the enameled wire is fixed in position, which is conducive to the stability and consistency of the subsequent soldering process between the enameled wire and the pin. The left winding enameled wire is the tail wire of the winding, and only needs to be reliably connected with the right side of the left pad and the winding enameled wire, so a wire blocking column (the limiting column 111) needs to be arranged on the right side of the frame (the insulating frame 110) to avoid the enameled wire from contacting the sharp edge of the pin (the first terminal 130), so as to ensure the reliability of the electrical connection.

[0144] The wire passing support column (the support column 112) plays a role of a reinforcing rib, shares the tension of the winding enameled wire (the first lead-out wire 121) on the wire blocking column (the limiting column 111) during the wire passing process of the enameled wire, and reduces the risk of stress deformation of the wire blocking column (the limiting column 111). The support column 112 and the wire blocking column (the limiting column 111) are both provided with a chamfered transition at the edge in contact with the enameled wire.

[0145] The left and right pin pads each include a pad plane (the soldering surface 132), a tin stacking column 137 and an auxiliary tin plating column (the soldering tin column 230). The winding lead-out wire (the first lead-out wire 121) passes through the pad plane and is provided on the upper pin soldering surface, and the tin stacking column 137 is arranged at both ends of the soldering plane. There are two tin stacking columns 137 at each end, which are the first tin stacking column, the second tin stacking column (the two first tin stacking columns 138), the third tin stacking column and the fourth tin stacking column (the two second tin stacking columns 139). The first tin stacking column and the second tin stacking column (the two first tin stacking columns 138) form a wire passing groove (the first wire passing groove 210), and the third tin stacking column and the fourth tin stacking column (the two second tin stacking columns 139) form a wire passing groove (the second wire passing groove 220). The enameled wire passes through the first wire passing groove 210 and the second wire passing groove 220, respectively. The wire passing groove 133 is used for tin stacking, guiding the tin beads to be flat, and covering the enameled wire. In addition, the wire passing groove 133 can also limit the enameled wire (the first lead-out wire 121), so as to ensure that the enameled wire is pulled flat on the tin soldering surface (the soldering surface 132) in a straight line, and improve the tin plating effect. Among them, the enameled wire (the first lead-out wire 121) is truly limited by the tin stacking column (the tin stacking column 137 located on the radially inner side of the two tin stacking columns 137 of the first soldering part 180 away from the second soldering part 190) of the left pad (the first soldering part 180).

[0146] The soldering pad (soldering part 131) also has an auxiliary soldering post (soldering post 230), which aims to reduce the problem of soldering deviation and leakage of the enamel wire during soldering.

[0147] The four soldering posts 137 of the left pin soldering pad (first soldering part 180) are located inside the area formed by the line limiting post (limiting post 111) of the insulating frame 110. The two soldering posts 137 located on the inner side of the pin (first terminal 130) are located on the inner side of the inner wall of the wire passing groove 133 and the inner wall of the two limiting posts 111 (the side of the limiting post 111 away from the center of the stator structure), that is, when the enamel wire (first lead-out wire 121) passes through the pin wire passing groove (wire passing groove 133), it only contacts the side wall of the line limiting post (limiting post 111) of the insulating frame 110, and does not contact the edge of the inner wall of the pin (first terminal 130), which ensures that the enamel wire is not damaged and ensures the reliability of the electrical connection.

[0148] The soldering post 137 of the right pin soldering pad (second soldering part 190) is opposite to the wire hanging post (limiting post 111) of the insulating frame 110, and the soldering post 137 is located on the inner side of the inner wall of the wire hanging post (limiting post 111) (the side of the limiting post 111 away from the center of the stator structure) on the inner side of the inner wall of the wire passing groove 133, that is, when the enamel wire (first lead-out wire 121) passes through the pin wire passing groove (wire passing groove 133), it only contacts the side wall of the line limiting post (limiting post 111) of the insulating frame 110, and does not contact the edge of the inner wall of the pin (first terminal 130), which ensures that the enamel wire is not damaged and ensures the reliability of the electrical connection.

[0149] According to the second aspect of the present application, a motor is provided, which comprises the stator structure 100 provided in any of the above embodiments, thereby having all the beneficial technical effects of the stator structure 100, which will not be repeated here.

[0150] According to the third aspect of the present application, a washing device is provided, which comprises the stator structure 100 or the motor provided in any of the above embodiments, thereby having all the beneficial technical effects of the stator structure 100 or the motor, which will not be repeated here.

[0151] In the description of the present application, the terms "connection", "installation", "fixation" and the like should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0152] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description 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.

[0153] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stator structure, characterized by, The application relates to an insulation frame, a stator winding and a first terminal. The insulation frame is provided with a limiting column; The stator winding is arranged on the insulation frame, and the stator winding comprises a first lead-out wire which can be in contact with the limiting column; The first terminal is arranged on the insulation frame, and the first terminal comprises a welding part which comprises a welding surface and a wire passing groove, the first lead-out wire passes through the wire passing groove and is connected with the welding surface, the wire passing groove comprises opposite first and second groove walls, and the first groove wall is closer to the center of the stator structure than the second groove wall; In the radial direction of the stator winding, the side surface of the limiting column away from the center of the stator structure is farther away from the center of the stator structure than the first groove wall.

2. The stator structure of claim 1, wherein The outer wall of the limiting column is provided with a first chamfer which is used for being in contact with the first lead-out wire.

3. The stator structure of claim 1, wherein The insulation frame is further provided with a supporting column which is located on the inner side of the limiting column and opposite to the limiting column in the radial direction of the stator winding, and the supporting column can be in contact with the first lead-out wire.

4. The stator structure of claim 3, wherein The outer wall of the supporting column is provided with a second chamfer which is used for being in contact with the first lead-out wire.

5. The stator structure of any one of claims 1 to 4, wherein, The number of the limiting columns is plural, at least two limiting columns are arranged on the two sides of the welding part respectively and opposite to each other in the circumferential direction of the stator winding, and in the radial direction of the stator winding, the side surface of at least one limiting column away from the center of the stator structure is farther away from the center of the stator structure than the first groove wall.

6. The stator structure of claim 5, wherein The number of the welding parts is two, at least two limiting columns are arranged between the two welding parts respectively and form a wire clamping groove which is communicated with the wire passing groove; The number of the first lead-out wires is two, one of the first lead-out wires passes through the wire clamping groove and the wire passing groove of one of the welding parts and is connected with the welding surface, and the other first lead-out wire passes through the wire clamping groove and the wire passing groove of the other welding part and is connected with the welding surface.

7. The stator structure of claim 6, wherein The two welding parts comprise a first welding part and a second welding part; The insulation frame is further provided with a first supporting surface which is located on the side of the second welding part away from the first welding part and can be in contact with the first lead-out wire, and in the axial direction of the stator winding, the first supporting surface is flush with the welding surface of the second welding part or the first supporting surface is lower than the welding surface of the second welding part.

8. The stator structure of claim 7, wherein The insulation frame is further provided with a guide surface which is connected with the first supporting surface and located on the side of the first supporting surface close to the center of the stator structure, and the guide surface can be in contact with the first lead-out wire.

9. The stator structure of any one of claims 1 to 4, wherein, The welding part comprises: A body which is provided with a welding surface; A plurality of soldering columns which are arranged at intervals in the body, and at least two soldering columns form the wire passing groove.

10. The stator structure of claim 9, wherein The plurality of the soldered tin posts includes two first soldered tin posts and two second soldered tin posts, which are respectively located on two sides of the body along the circumferential direction of the stator winding, the two first soldered tin posts form a first wire passing slot, and the two second soldered tin posts form a second wire passing slot, and the first lead wire respectively passes through the first wire passing slot and the second wire passing slot.

11. The stator structure of claim 9, wherein The welding part further includes: The soldered tin post is arranged on the body and is located on a different side of the body from the at least one soldered tin post.

12. The stator structure of claim 11, wherein, The soldered tin post is arranged apart from the at least one soldered tin post.

13. The stator structure of claim 11, wherein, The number of the soldered tin post is a plurality, and at least two soldered tin posts are respectively located on opposite sides of the body.

14. The stator structure of any one of claims 1 to 4, wherein, The insulating frame is further provided with a shielding part, which is located on the inner side of the welding part along the radial direction of the stator winding and at least partially opposite to the welding surface.

15. The stator structure of claim 14, wherein, The first terminal further includes: The mounting part is arranged on the insulating frame and connected with the welding part; The connection between the mounting part and the welding part is opposite to at least part of the shielding part.

16. The stator structure of any one of claims 1 to 4, wherein, The insulating frame is further provided with a second support surface, and the welding part is arranged on the second support surface, and the side surface of the welding part away from the first lead wire is in close contact with the second support surface.

17. The stator structure of any one of claims 1 to 4, wherein, The stator winding further includes a second lead wire, and the stator structure further includes: The wire outlet seat is arranged on the insulating frame; The second terminal is arranged on the wire outlet seat and partially exposed outside the wire outlet seat, and the second lead wire is arranged on the second terminal.

18. An electric machine characterized by The stator structure includes any one of claims 1-17.

19. A washing apparatus characterized by comprising: The stator structure includes: The stator structure of any one of claims 1-17; Or The motor of claim 18.

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