Stator structure, motor, and washing device

Abstract

The present application relates to the technical field of motor devices, and provides a stator structure, a motor, and a washing device. The stator structure comprises: an insulating frame, the insulating frame being provided with limiting posts; a stator winding arranged on the insulating frame, the stator winding comprising first lead-out wires, each first lead-out wire being capable of being in contact with the corresponding limiting post; and a first terminal arranged on the insulating frame, the first terminal comprising welding portions, each welding portion comprising a welding surface and a wire passing slot, the corresponding first lead-out wire passing through the wire passing slot and being connected to the welding surface, the wire passing slot comprising a first slot wall and a second slot wall opposite to each other, and the first slot wall being closer to the center of the stator structure than the second slot wall, wherein, in the radial direction of the stator winding, the side surface of the corresponding limiting post facing away from the center of the stator structure is farther from the center of the stator structure than the first slot wall, and thus, during routing of the first lead-out wire, the first lead-out wire can abut against the outer wall of the limiting post, reducing contact between the first lead-out wire and the corresponding welding portion, thereby preventing sharp edges or burrs of the welding portion from damaging the first lead-out wire.

Description

Stator structure, motor and washing equipment

[0001] This application claims priority to Chinese Patent Application No. 202510089784.8, filed on January 20, 2025, entitled "Stator Structure, Motor and Washing Equipment", the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202520131712.0, filed on January 20, 2025, entitled "Stator Structure, Motor and Washing Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electrical equipment technology, and more specifically, to a stator structure, an electric motor, and a washing device. Background Technology

[0004] Currently, in related technologies, the ends of motor windings are welded together through a common terminal. Before welding, the lead wires at the ends of the windings are usually fixed to the common terminal to prevent the lead wires from shaking. However, the common terminal is usually a metal stamping part, and the edges are prone to burrs. The lead wires are easily damaged by contact with the burrs during the wiring process, which reduces the reliability of the electrical connection. Technical solutions

[0005] The embodiments of this application are intended to at least solve one of the technical problems existing in the prior art.

[0006] Therefore, a first aspect of the embodiments of this application provides a stator structure.

[0007] A second aspect of the embodiments of this application provides an electric motor.

[0008] A third aspect of the embodiments of this application provides a washing apparatus.

[0009] In view of the above, according to a first aspect of the embodiments of this application, a stator structure is provided, the stator structure comprising: an insulating frame having a limiting post; a stator winding disposed on the insulating frame, the stator winding including a first lead wire capable of contacting the limiting post; a first terminal disposed on the insulating frame, the first terminal including a welding portion, the welding portion including a welding surface and a wire passage groove, the first lead wire passing through the wire passage groove and connected to the welding surface, the wire passage groove including opposing first groove walls and second groove walls, the first groove wall being closer to the center of the stator structure than the second groove wall; wherein, along the radial direction of the stator winding, the side of the limiting post facing away from the center of the stator structure is farther away from the center of the stator structure than the first groove wall.

[0010] The stator structure provided in this embodiment includes an insulating frame, a stator winding, and a first terminal. Specifically, the stator winding is disposed on the insulating frame and includes a first lead wire, which is understood to be the lead wire at the end of the stator winding. Optionally, there are two first leads wires. For a three-phase stator winding, one first lead wire can be led out from the end of one phase stator winding, and the ends of the other two phase stator windings are connected to lead out another first lead wire. Optionally, the stator structure also includes a stator core, which is disposed on the insulating frame. Optionally, the stator core is a bar core. It is understood that after the stator winding is wound on the insulating frame, the bar stator structure can be bent into a circle by a bending machine, and the ends can be connected and welded together.

[0011] The first terminal is disposed on the insulating frame. Optionally, the insulating frame is further provided with a mounting groove, and the mounting portion of the first terminal is disposed within the mounting groove. The first terminal includes a welding portion, wherein the welding portion includes a welding surface and a wire guide groove. The first lead wire passes through the wire guide groove and is welded to the welding surface. Optionally, there are two welding portions, where one first lead wire is welded to the welding surface of one welding portion, and the other first lead wire is welded to the welding surface of the other welding portion, thereby realizing the welding of the common terminal of the stator winding.

[0012] The cable tray includes a first tray wall and a second tray wall. The first tray wall is closer to the center of the stator structure than the second tray wall; that is, the first tray wall is the inner tray wall, and the second tray wall is the outer tray wall. Since the side of the limiting post facing away from the center of the stator structure is farther from the center of the stator structure than the inner tray wall, the distance between the side of the limiting post facing away from the center of the stator structure and the center of the stator structure is greater than the distance between the inner tray wall and the center of the stator structure. Therefore, when routing the first lead wire, the first lead wire can be kept close to the outer wall of the limiting post, reducing contact between the first lead wire and the welded part. This avoids damage to the first lead wire from sharp edges or burrs of the welded part, ensuring the reliability of the electrical connection of the stator structure.

[0013] In addition, since the first lead wire is close to the outer wall of the limiting post, the position of the first lead wire and the welding surface can be fixed before welding, so that the first lead wire passes through the welding surface in a straight line, which helps to ensure the stability and consistency of the subsequent welding process.

[0014] In addition, the stator structure provided by the above-mentioned technical solution of this application also has the following additional technical features:

[0015] In some technical solutions, optionally, the outer wall of the limiting post is provided with a first chamfer, which is used to contact the first lead wire.

[0016] In this technical solution, since the outer wall of the limiting post is provided with a first chamfer, and the first chamfer is used to contact the first lead wire, that is, a chamfer transition is performed at the position where the limiting post contacts the first lead wire.

[0017] Since the first lead wire is close to the outer wall of the limiting post during winding, the outer wall of the limiting post is chamfered to facilitate winding and reduce the pulling damage to the first lead wire during winding, thereby further improving the reliability of the stator structure electrical connection.

[0018] Optionally, when there are multiple limiting posts, each limiting post is provided with a first chamfer at the position where it contacts the first lead wire.

[0019] In some technical solutions, the insulating frame may optionally be provided with a support column, which is located inside the limiting column and opposite to the limiting column along the radial direction of the stator winding, and the support column can contact the first lead wire.

[0020] In this technical solution, the insulating frame is further provided with a support column. Specifically, the support column is located radially inside the limiting column, and the support column is opposite to the limiting column.

[0021] Since the support column is in contact with the first lead wire, the support column can share the tension on the limit column during the first lead wire's passage, reducing the risk of deformation of the limit column and improving the reliability of the stator structure. Moreover, by setting the support column, the structural strength of the insulation frame can also be improved, and it can act as a reinforcing rib.

[0022] In some technical solutions, optionally, the outer wall of the support column is provided with a second chamfer, which is used to contact the first lead wire.

[0023] In this technical solution, since the outer wall of the support column is provided with a second chamfer, and the second chamfer is used to contact the first lead wire, that is, a chamfer transition is performed at the position where the support column contacts the first lead wire.

[0024] During winding, the support column is used to share the tension on the limiting column during the first lead wire's passage. By chamfering the outer wall of the support column, winding is facilitated, and the damage to the first lead wire during winding is further reduced, thus improving the reliability of the stator structure's electrical connection.

[0025] In some technical solutions, optionally, there are multiple limiting posts. At least two limiting posts are located on both sides of the welded part along the circumference of the stator winding and are arranged opposite to each other. Along the radial direction of the stator winding, at least one limiting post has a side facing away from the center of the stator structure that is farther away from the center of the stator structure than the first slot wall.

[0026] In this technical solution, the number of limiting posts is limited to multiple. Specifically, along the circumferential direction of the stator winding, at least two limiting posts are located on both sides of the welding part and are arranged opposite each other. Since the side of at least one limiting post away from the center of the stator structure is farther away from the center of the stator structure than the inner wall of the wire slot, when the first lead wire is routed, the first lead wire can be close to the outer wall of at least two limiting posts, further reducing the contact between the first lead wire and the welding part, avoiding damage to the first lead wire by the sharp edges or burrs of the welding part, and ensuring the reliability of the electrical connection of the stator structure.

[0027] In addition, since at least two limiting posts are located on both sides of the welded part, they can also limit the welded part, which helps to further improve the reliability of the stator structure electrical connection.

[0028] In some technical solutions, optionally, there are two welding parts, with at least two limiting posts located between the two welding parts respectively, forming a wire-locking groove, which is connected to the wire-passing groove; wherein, there are two first lead wires, one of which passes through the wire-locking groove and the wire-passing groove of one of the welding parts respectively and is connected to the welding surface, and the other first lead wire passes through the wire-locking groove and the wire-passing groove of the other welding part respectively and is connected to the welding surface.

[0029] In this technical solution, the number of welding parts is limited to two. Specifically, at least two limiting posts are located between the two welding parts. One first lead wire passes through the wire clamping groove and the wire passage groove of one of the welding parts, and is welded to the welding surface of the welding part. During this process, the first lead wire is close to the outer wall of at least one limiting post, thereby preventing the first lead wire from contacting the welding part and damaging the enameled wire. Simultaneously, another first lead wire passes through the wire clamping groove and the wire passage groove of the other welding part, and is welded to the welding surface of the welding part. During this process, the first lead wire is close to the outer wall of at least one limiting post, thereby preventing the first lead wire from contacting the welding part and damaging the enameled wire.

[0030] In other words, at least one limiting post located between the two welded parts is used to fix the position of one of the first leads and at least one limiting post is used to fix the position of the other first lead, which helps to further improve the electrical connection reliability of the stator structure.

[0031] In some technical solutions, optionally, the two welding parts include a first welding part and a second welding part; the insulating frame is also provided with a first support surface, the first support surface is located on the side of the second welding part away from the first welding part, and can contact the first lead wire, along the axial direction of the stator winding, the first support surface is flush with the welding surface of the second welding part, or the first support surface is lower than the welding surface of the second welding part.

[0032] In this technical solution, the insulating frame is further provided with a first support surface. Specifically, the first support surface is located on the side of the second welded part away from the first welded part, that is, the first support surface is located on the right side of the second welded part.

[0033] Understandably, after the first lead passes through the wire clamping groove and the wire guide groove, it enters the insulation frame via the first support surface and continues winding. Since the axial height of the first support surface is flush with the axial height of the welding surface of the second welding part, or the axial height of the first support surface is lower than the axial height of the welding surface of the second welding part, that is, in the axial direction of the stator winding, the first support surface does not exceed the welding surface of the second welding part. Therefore, during the routing of the first lead, it can be made to fully fit against the welding surface of the second welding part, which is beneficial to improving the welding effect and thus improving the electrical connection reliability of the stator structure.

[0034] In some technical solutions, optionally, the insulating frame is also provided with a guide surface, which is connected to the first support surface and located on the side of the first support surface near the center of the stator structure, and the guide surface can contact the first lead wire.

[0035] In this technical solution, the insulating frame is further provided with a guide surface. Specifically, one end of the guide surface is connected to the first support surface, and the other end extends inward and downward at an angle. That is to say, the guide surface is located on the radial inner side of the first support surface.

[0036] Understandably, after passing through the wire clamping groove and the wire guide groove, the first lead wire enters the interior of the insulation frame via the first support surface and the guide surface, and continues winding. By setting the guide surface, the passage of the first lead wire can be guided, effectively reducing the stress on the first lead wire during passage, further reducing damage to the enameled wire, and improving the electrical connection reliability of the stator structure.

[0037] In some technical solutions, the soldering part optionally includes a body and a plurality of solder pile pillars, wherein the body has a soldering surface, the plurality of solder pile pillars are spaced apart on the body, and at least two solder pile pillars form a wire channel.

[0038] In this technical solution, the welding part is defined as including a body and multiple solder pile pillars. Specifically, the solder pile pillars are spaced apart on the body, and at least two solder pile pillars form a wire guide groove. Since the side of the limiting pillar facing away from the center of the stator structure is farther from the center of the stator structure than the inner wall of the wire guide groove (meaning the distance between the side of the limiting pillar facing away from the center of the stator structure and the center of the stator structure is greater), and the solder pile pillar closer to the center of the stator structure than the other solder pile pillars is located between the wall of the wire guide groove and the center of the stator structure, when routing the first lead wire, the first lead wire can be close to the outer wall of the limiting pillar, reducing contact between the first lead wire and the solder pile pillar, preventing sharp edges or burrs on the solder pile pillars from damaging the first lead wire, and ensuring the reliability of the electrical connection of the stator structure.

[0039] In addition, by setting multiple solder pillars, the solder balls can be guided to spread flat and cover the enameled wire during the soldering process of the first lead, effectively reducing the problems of solder misalignment and missing enameled wire during soldering, and further improving the electrical connection reliability of the stator structure.

[0040] In some technical solutions, optionally, the multiple solder pillars include two first solder pillars and two second solder pillars. Along the circumference of the stator winding, the two first solder pillars and the two second solder pillars are located on both sides of the body. The two first solder pillars form a first wire-passing slot, and the two second solder pillars form a second wire-passing slot. The first lead wire passes through the first wire-passing slot and the second wire-passing slot respectively.

[0041] In this technical solution, multiple solder pillars are defined, including two first solder pillars and two second solder pillars. Specifically, the two first solder pillars and the two second solder pillars are located on both sides of the body circumferentially, which can guide the solder balls to flow to both sides, which is conducive to the solder balls being evenly spread on the soldering surface, covering the enameled wire, thereby effectively reducing the problems of solder misalignment and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure.

[0042] Since the two first solder pillars form the first wire guide groove and the two second solder pillars form the second wire guide groove, the first lead wire passes through the first wire guide groove and the second wire guide groove respectively during the routing process. This allows the first lead wire to pass through the soldering surface in a straight line, which is beneficial to the stability and consistency of the subsequent soldering process between the first lead wire and the soldering surface.

[0043] In some technical solutions, the welding part may optionally include solder pillars, which are disposed on the body and located on different sides of the body respectively with at least one solder pile pillar.

[0044] In this technical solution, the welding section is further defined as including solder pillars, specifically, the solder pillars are disposed on the body. It is understandable that during the process of welding the first lead to the welding surface, the solder balls tend to flow to one side, resulting in the solder balls not being evenly spread on the welding surface. This is especially true for aluminum enameled wire, which can easily lead to problems such as misaligned soldering and missing enameled wire during the welding process, affecting the reliability of the stator structure's electrical connection.

[0045] Since the solder pillars and at least one solder pile pillar are located on different sides of the body, it is beneficial to guide the solder balls to flow in different directions, so that the solder balls are evenly spread on the soldering surface, covering the enameled wire, effectively reducing the problems of off-center soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure.

[0046] In addition, by setting solder pillars, the enameled wire of the stator winding can be set as aluminum enameled wire, which helps to reduce the production cost of the stator structure while ensuring the welding effect.

[0047] In some technical solutions, the solder pillars are optionally spaced apart from at least one solder pile pillar.

[0048] In this technical solution, since the solder pillars and at least one solder pile pillar are spaced apart, that is, there is a gap between the solder pillars and the solder pile pillars, it 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.

[0049] In some technical solutions, optionally, there are multiple solder pillars, with at least two solder pillars located on opposite sides of the body.

[0050] In this technical solution, the number of solder pillars is limited to multiple. Specifically, at least two solder pillars are located on opposite sides of the body. Since the solder pillars and the solder pile pillars are located on different sides of the body, that is, solder pile pillars and solder pillars are set around the body, the solder balls can be guided to flow around the welding surface during the welding process, so that the solder balls are evenly spread on the welding surface and cover the enameled wire. This further reduces the problems of solder misalignment and missing enameled wire during soldering, and improves the electrical connection reliability of the stator structure.

[0051] In addition, by setting multiple solder pillars, the enameled wire of the stator winding can be set as aluminum enameled wire, which helps to reduce the production cost of the stator structure while ensuring the welding effect.

[0052] In some technical solutions, the insulation frame may optionally include a shielding portion located inside the welded portion along the radial direction of the stator winding, and at least partially opposite the welded surface.

[0053] In this technical solution, the insulating frame is further provided with a shielding part. Specifically, the shielding part is located radially inside the welded part, and at least a portion of the shielding part is opposite to the welded surface.

[0054] It is understandable that during the process of soldering the first lead wire to the soldering surface, there are solder balls on the soldering surface. By setting a shielding part on the radial inner side of the soldering part, the solder balls can be prevented from flowing inward to the stator winding, which is beneficial to further improve the reliability of the stator structure.

[0055] In addition, before welding, a heat source is generally used to melt the insulation layer on the surface of the first lead wire. By setting a shielding part on the radial inner side of the welding part, the heat source can also be blocked to avoid the heat source damaging the inner stator winding, which is conducive to further improving the reliability of the stator structure.

[0056] In some technical solutions, the first terminal may optionally include a mounting portion disposed on an insulating frame and connected to a welding portion; wherein the connection between the mounting portion and the welding portion is opposite to at least a partial shielding portion.

[0057] In this technical solution, the first terminal further includes a mounting portion. Specifically, the mounting portion is disposed on the insulating frame and is connected to the welding portion. Optionally, when there are two welding portions, the mounting portion is located between the two welding portions, and both ends of the mounting portion are respectively connected to the two welding portions.

[0058] Understandably, the circumference of the welding part is provided with solder pillars and solder columns, which can block the solder balls and heat sources on the welding surface to a certain extent. This allows the solder balls and heat sources to easily flow out through the connection between the mounting part and the welding part. By positioning the shielding part opposite to this connection, the blocking effect of the shielding part can be improved. This not only prevents the solder balls from flowing inward into the stator winding, but also blocks the heat source, preventing the heat source from damaging the inner stator winding, which is conducive to further improving the reliability of the stator structure.

[0059] Optionally, the welding part and the mounting part are integrated into one structure.

[0060] In some technical solutions, optionally, the insulating frame is also provided with a second support surface, the welding part is provided on the second support surface, and the side of the welding part away from the first lead wire is in contact with the second support surface.

[0061] In this technical solution, the insulating frame is further provided with a second support surface. Specifically, the welding part is provided on the second support surface, and the side of the welding part away from the first lead wire is in contact with the second support surface. That is to say, the bottom surface of the welding part is in contact with the second support surface, which helps to ensure the assembly stability between the first terminal and the insulating frame, and thus helps to improve the reliability of the stator structure.

[0062] In some technical solutions, the stator winding may optionally include a second lead wire, and the stator structure may also include a lead wire holder and a second terminal, wherein the lead wire holder is disposed on the insulating frame, the second terminal is disposed on the lead wire holder and partially exposed outside the lead wire holder, and the second lead wire is disposed on the second terminal.

[0063] In this technical solution, the stator structure is further defined as including a terminal block and a second terminal. Specifically, the terminal block is disposed on the insulating frame, the second terminal is disposed on the terminal block, and a portion of the second terminal is exposed outside the terminal block. A second lead is disposed on the second terminal, and the portion of the second terminal exposed outside the terminal block can be connected to the connector of the entire washing machine. In other words, the second lead is electrically connected to the power supply through the second terminal.

[0064] Optionally, the number of second leads is 3. It can be understood that the second terminal corresponds one-to-one with the second lead.

[0065] According to a second aspect of this application, an electric motor is provided, including a stator structure as provided by any of the above-described technical solutions, thus possessing all the beneficial technical effects of the stator structure, which will not be repeated here.

[0066] According to a third aspect of this application, a washing device is provided, including a stator structure or motor as provided in any of the above technical solutions, and thus possessing all the beneficial technical effects of the stator structure or motor, which will not be repeated here.

[0067] Additional aspects and advantages of this application will be set forth in the description which follows, in part as will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0068] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0069] Figure 1 shows one of the structural schematic diagrams of a stator structure according to an embodiment of this application;

[0070] Figure 2 shows an enlarged view of the stator structure at point A in the embodiment shown in Figure 1;

[0071] Figure 3 shows a second schematic diagram of a stator structure according to an embodiment of this application;

[0072] Figure 4 shows an enlarged view of the stator structure at point B in the embodiment shown in Figure 3;

[0073] Figure 5 shows a partial exploded view of a stator structure according to an embodiment of this application;

[0074] Figure 6 shows one of the partial structural schematic diagrams of an insulating frame according to an embodiment of this application;

[0075] Figure 7 shows a second partial structural schematic diagram of an insulating frame according to an embodiment of this application;

[0076] Figure 8 shows a third partial structural schematic diagram of an insulating frame according to an embodiment of this application;

[0077] Figure 9 shows a schematic diagram of the structure of a first terminal according to an embodiment of this application;

[0078] Figure 10 shows a third schematic diagram of a stator structure according to an embodiment of this application;

[0079] Figure 11 shows an enlarged view of the stator structure at point C in the embodiment shown in Figure 10;

[0080] Figure 12 shows a fourth structural schematic diagram of a stator structure according to an embodiment of this application;

[0081] Figure 13 shows a fifth schematic diagram of a stator structure according to an embodiment of this application.

[0082] The correspondence between the reference numerals and component names in Figures 1 to 13 is as follows:

[0083] 100 Stator structure, 110 Insulation frame, 111 Limiting post, 112 Support post, 113 First support surface, 114 Guide surface, 115 Shielding part, 116 Second support 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 guide groove, 134 First groove wall, 135 Second groove wall, 136 Body, 137 Solder pile pillar, 138 First solder pile pillar, 139 Second solder pile pillar, 150 First chamfer, 160 Second chamfer, 170 Wire clamping groove, 180 First welding part, 190 Second welding part, 210 First wire guide groove, 220 Second wire guide groove, 230 Solder pillar, 240 Mounting part, 250 Outlet socket, 260 Second terminal. Embodiments of the present invention

[0084] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0085] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0086] The stator structure 100, motor, and washing equipment according to some embodiments of this application are described below with reference to Figures 1 to 13.

[0087] In one embodiment according to this application, as shown in Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13, a stator structure 100 is provided. The stator structure 100 includes: an insulating frame 110, the insulating frame 110 being provided with a limiting post 111; a stator winding 120 disposed on the insulating frame 110, the stator winding 120 including a first lead 121 capable of contacting the limiting post 111; and a first terminal 130 disposed on the insulating frame 110. The first terminal 130 includes a welding portion 131, which includes a welding surface 132 and a wire passage groove 133. The first lead wire 121 passes through the wire passage groove 133 and is connected to the welding surface 132. The wire passage groove 133 includes a first groove wall 134 and a second groove wall 135, which are opposite each other. The first groove wall 134 is closer to the center of the stator structure 100 than the second groove wall 135. Along the radial direction of the stator winding 120, the side of the limiting post 111 facing away from the center of the stator structure 100 is farther away from the center of the stator structure 100 than the first groove wall 134.

[0088] The stator structure 100 provided in this embodiment includes an insulating frame 110, a stator winding 120, and a first terminal 130. Specifically, the stator winding 120 is disposed on the insulating frame 110, and the stator winding 120 includes a first lead-out wire 121. 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, there are two first lead-out wires 121. For a three-phase stator winding 120, one first lead-out wire 121 can be led out from the end of one phase stator winding 120, and the ends of the other two phase stator windings 120 are connected to lead out another first lead-out wire 121. Optionally, the stator structure 100 also includes a stator core, which is disposed on the insulating frame 110. Optionally, the stator core is a bar core. Understandably, once the stator winding 120 is wound on the insulating frame 110, the strip stator structure 100 can be bent into a circle by a bending machine, with the ends connected and welded together.

[0089] The first terminal 130 is disposed on the insulating frame 110. Optionally, the insulating frame 110 is further provided with a mounting groove, and the mounting portion 240 of the first terminal 130 is disposed in the mounting groove. The first terminal 130 includes a welding portion 131, wherein the welding portion 131 includes a welding surface 132 and a wire passage groove 133. The first lead wire 121 passes through the wire passage groove 133 and is welded to the welding surface 132. Optionally, there are two welding portions 131, one of which is welded to the welding surface 132 of one welding portion 131, and the other is welded to the welding surface 132 of the other welding portion 131, thereby realizing the welding of the common terminal of the stator winding 120.

[0090] The cable tray 133 includes a first tray wall 134 and a second tray wall 135. The first tray wall 134 is closer to the center O of the stator structure 100 than the second tray wall 135. In other words, the first tray wall 134 is the inner tray wall, and the second tray wall 135 is the outer tray wall. Since the side of the limiting post 111 facing away from the center of the stator structure 100 is farther from the center O of the stator structure 100 than the inner tray wall, the distance between the side of the limiting post 111 facing 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 tray wall and the center of the stator structure 100. Therefore, when routing the first lead wire 121, the first lead wire 121 can be close to the outer wall of the limiting post 111, reducing the contact between the first lead wire 121 and the welding part 131, avoiding damage to the first lead wire 121 by the sharp edges or burrs of the welding part 131, and ensuring the reliability of the electrical connection of the stator structure 100.

[0091] In addition, since the first lead wire 121 is close to the outer wall of the limiting post 111, the position of the first lead wire 121 and the welding surface 132 can be fixed before welding, so that the first lead wire 121 passes through the welding surface 132 in a straight line, which is conducive to ensuring the stability and consistency of the subsequent welding process.

[0092] As shown in Figures 5 and 6, in some embodiments, optionally, the outer wall of the limiting post 111 is provided with a first chamfer 150, which is used to contact the first lead wire 121.

[0093] In this embodiment, since the outer wall of the limiting post 111 is provided with a first chamfer 150, and the first chamfer 150 is used to contact the first lead wire 121, that is, a chamfer transition is performed at the position where the limiting post 111 contacts the first lead wire 121.

[0094] Since the first lead wire 121 is close to the outer wall of the limiting post 111 during winding, the outer wall of the limiting post 111 is chamfered to facilitate winding and reduce the pulling damage to the first lead wire 121 during winding, thereby further improving the reliability of the electrical connection of the stator structure 100.

[0095] Optionally, when there are multiple limiting posts 111, each limiting post 111 is provided with a first chamfer 150 at the position where it contacts the first lead wire 121.

[0096] As shown in Figures 2, 4, 5, 6, 7 and 8, 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.

[0097] 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.

[0098] 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.

[0099] As shown in Figures 5 and 6, in some embodiments, the outer wall of the support column 112 is optionally provided with a second chamfer 160, which is used to contact the first lead wire 121.

[0100] 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.

[0101] 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.

[0102] As shown in Figures 2, 4, 5, 6, 7 and 8, 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.

[0103] In this embodiment, the number of limiting posts 111 is limited to a plurality. Specifically, along the circumferential direction of the stator winding 120, at least two limiting posts 111 are located on both sides of the welding part 131 and are arranged opposite to each other. Since the side of at least one limiting post 111 facing away from the center of the stator structure 100 is farther away from the center of the stator structure 100 than the inner wall of the wire groove 133, when the first lead wire 121 is routed, the first lead wire 121 can be close to the outer wall of at least two limiting posts 111, further reducing the contact between the first lead wire 121 and the welding part 131, avoiding damage to the first lead wire 121 by the sharp edge or burrs of the welding part 131, and ensuring the reliability of the electrical connection of the stator structure 100.

[0104] In addition, since at least two limiting posts 111 are located on both sides of the welded part 131, they can also limit the welded part 131, which is conducive to further improving the reliability of the electrical connection of the stator structure 100.

[0105] As shown in Figures 2, 4, 5, and 9, in some embodiments, optionally, there are two welding parts 131, with at least two limiting posts 111 located between the two welding parts 131 respectively, forming a wire-locking groove 170, which is connected to the wire-passing groove 133; wherein, there are two first lead wires 121, one of which passes through the wire-locking groove 170 and the wire-passing groove 133 of one of the welding parts 131 respectively, and is connected to the welding surface 132, and the other first lead wire 121 passes through the wire-locking groove 170 and the wire-passing groove 133 of the other welding part 131 respectively, and is connected to the welding surface 132.

[0106] In this embodiment, the number of welding portions 131 is limited to two. Specifically, at least two limiting posts 111 are located between the two welding portions 131. One first lead wire 121 passes through the wire clamping groove 170 and the wire passage groove 133 of one of the welding portions 131, and is welded to the welding surface 132 of the welding portion 131. During this process, the first lead wire 121 is in close contact with the outer wall of at least one limiting post 111, thereby preventing the first lead wire 121 from contacting the welding portion 131 and damaging the enameled wire. At the same time, another first lead wire 121 passes through the wire clamping groove 170 and the wire passage groove 133 of the other welding portion 131, and is welded to the welding surface 132 of the welding portion 131. During this process, the first lead wire 121 is in close contact with the outer wall of at least one limiting post 111, thereby preventing the first lead wire 121 from contacting the welding portion 131 and damaging the enameled wire.

[0107] In other words, at least one limiting post 111 located between the two welding parts 131 is used to fix the position of one of the first leads 121, and at least one limiting post 111 is used to fix the position of the other first lead 121, which helps to further improve the electrical connection reliability of the stator structure 100.

[0108] As shown in Figures 4, 5, 6 and 7, in some embodiments, optionally, the two welded portions 131 include a first welded portion 180 and a second welded portion 190; the insulating frame 110 is also provided with a first support surface 113, which is located on the side of the second welded portion 190 away from the first welded portion 180 and can contact the first lead wire 121. Along the axial direction of the stator winding 120, the first support surface 113 is flush with the welding surface 132 of the second welded portion 190, or the first support surface 113 is lower than the welding surface 132 of the second welded portion 190.

[0109] In this embodiment, the insulating frame 110 is further provided with a first support surface 113. Specifically, the first support surface 113 is located on the side of the second welded portion 190 away from the first welded portion 180, that is, the first support surface 113 is located on the right side of the second welded portion 190.

[0110] Understandably, after the first lead wire 121 passes through the wire clamping groove 170 and the wire passing groove 133, it enters the interior of the insulating frame 110 via the first support surface 113 and continues to wind. Since the axial height of the first support surface 113 is flush with the axial height of the welding surface 132 of the second welding part 190, or the axial height of the first support surface 113 is lower than the axial height of the welding surface 132 of the second welding part 190, that is, in the axial direction of the stator winding 120, the first support surface 113 does not exceed the welding surface 132 of the second welding part 190. Therefore, during the routing of the first lead wire 121, the first lead wire 121 can be fully attached to the welding surface 132 of the second welding part 190, which is beneficial to improving the welding effect and thus improving the electrical connection reliability of the stator structure 100.

[0111] As shown in Figures 6 and 7, in some embodiments, optionally, the insulating frame 110 is also provided with a guide surface 114, which is connected to the first support surface 113 and located on the side of the first support surface 113 near the center of the stator structure 100. The guide surface 114 can contact the first lead wire 121.

[0112] In this embodiment, the insulating frame 110 is further provided with 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 inward and downward at an incline. That is, the guide surface 114 is located radially inside the first support surface 113.

[0113] Understandably, after the first lead 121 passes through the wire clamping groove 170 and the wire passing groove 133, it enters the interior of the insulating frame 110 after passing through the first support surface 113 and the guide surface 114, and continues to wind. By setting the guide surface 114, the passage of the first lead 121 can be guided, effectively reducing the stress on the first lead 121 during passage, further reducing damage to the enameled wire, and improving the electrical connection reliability of the stator structure 100.

[0114] As shown in Figures 5 and 9, in some embodiments, the soldering part 131 optionally includes a body 136 and a plurality of solder pile pillars 137, wherein the body 136 is provided with a soldering surface 132, the plurality of solder pile pillars 137 are spaced apart on the body 136, and at least two solder pile pillars 137 form a wire groove 133.

[0115] In this embodiment, the soldering part 131 is defined as including a body 136 and a plurality of solder pile pillars 137. Specifically, the solder pile pillars 137 are spaced apart on the body 136, and at least two solder pile pillars 137 form a wire groove 133. Because the side of the limiting post 111 away from the center of the stator structure 100 is farther from the center of the stator structure 100 than the inner wall of the wire channel 133, that is, the distance between the side of the limiting post 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 wall of the wire channel 133 and the center of the stator structure 100 of the multiple solder pile posts 137, the solder pile post 137 on the side closer to the center of the stator structure 100 than the other solder pile posts 137 is located at the distance between the wall of the wire channel 133 and the center of the stator structure 100. Therefore, when routing the first lead 121, the first lead 121 can be close to the outer wall of the limiting post 111, reducing the contact between the first lead 121 and the solder pile post 137, avoiding damage to the first lead 121 by sharp edges or burrs on the solder pile post 137, and ensuring the reliability of the electrical connection of the stator structure 100.

[0116] In addition, by setting multiple solder pillars 137, the solder balls can be guided to spread out and cover the enameled wire during the soldering process of the first lead 121, effectively reducing the problems of solder misalignment and missing enameled wire during soldering, and further improving the electrical connection reliability of the stator structure 100.

[0117] As shown in Figures 5 and 9, in some embodiments, optionally, the plurality of solder pillars 137 include two first solder pillars 138 and two second solder pillars 139. Along the circumference of the stator winding 120, the two first solder pillars 138 and the two second solder pillars 139 are located on both sides of the body 136, the two first solder pillars 138 form a first wire passage 210, and the two second solder pillars 139 form a second wire passage 220. The first lead wire 121 passes through the first wire passage 210 and the second wire passage 220 respectively.

[0118] In this embodiment, a plurality of solder pillars 137 are defined, including two first solder pillars 138 and two second solder pillars 139. Specifically, the two first solder pillars 138 and the two second solder pillars 139 are located on both sides of the circumferential direction of the body 136, which can guide the solder balls to flow to both sides, which is conducive to the solder balls being evenly spread on the soldering surface 132, covering the enameled wire, thereby effectively reducing the problems of solder misalignment and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0119] Since the two first solder pillars 138 form the first wire passage 210 and the two second solder pillars 139 form the second wire passage 220, during the routing of the first lead 121, it passes through the first wire passage 210 and the second wire passage 220 respectively, so that the first lead 121 passes through the soldering surface 132 in a straight line, which is beneficial to the stability and consistency of the subsequent soldering process between the first lead 121 and the soldering surface 132.

[0120] As shown in Figures 5 and 9, in some embodiments, the soldering part 131 may optionally include solder pillars 230, which are disposed on the body 136 and located on different sides of the body 136, respectively, along with at least one solder pile pillar 137.

[0121] In this embodiment, the welding section 131 is further defined as including solder pillars 230, specifically, the solder pillars 230 are disposed on the body 136. It is understood that during the process of welding the first lead 121 onto the welding surface 132, the solder balls tend to flow to one side, resulting in the solder balls not being evenly spread on the welding surface 132. Especially for aluminum enameled wire, problems such as off-center welding and missing enameled wire are prone to occur during the welding process, affecting the reliability of the electrical connection of the stator structure 100.

[0122] Since the solder pillars 230 and at least one solder pile pillar 137 are located on different sides of the body 136, it is beneficial to guide the solder balls to flow in different directions, so that the solder balls are evenly spread on the soldering surface 132, covering the enameled wire, effectively reducing the problems of misaligned soldering and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0123] In addition, by setting solder pillars 230, the enameled wire of stator winding 120 can be set as aluminum enameled wire, which helps to reduce the production cost of stator structure 100 while ensuring the welding effect.

[0124] In some embodiments, the solder pillars 230 are optionally spaced apart from at least one solder pile pillar 137.

[0125] In this embodiment, since the solder pillar 230 and at least one solder pile pillar 137 are spaced apart, that is, there is a gap between the solder pillar 230 and the solder pile pillar 137, it is beneficial 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.

[0126] As shown in Figures 5 and 9, in some embodiments, optionally, there are multiple solder pillars 230, with at least two solder pillars 230 located on opposite sides of the body 136.

[0127] In this embodiment, the number of solder pillars 230 is limited to a plurality. Specifically, at least two solder pillars 230 are located on opposite sides of the body 136. Since the solder pillars 230 and the solder pile pillars 137 are located on different sides of the body 136, that is, the solder pile pillars 137 and the solder pillars 230 are respectively arranged around the body 136. In this way, during the soldering process, the solder balls can be guided to flow around the soldering surface 132, so that the solder balls are evenly spread on the soldering surface 132, covering the enameled wire, further reducing the problems of solder misalignment and missing enameled wire during soldering, and improving the electrical connection reliability of the stator structure 100.

[0128] In addition, by setting multiple solder pillars 230, the enameled wire of the stator winding 120 can be set as aluminum enameled wire, which helps to reduce the production cost of the stator structure 100 while ensuring the welding effect.

[0129] As shown in Figures 2, 4, 5, 6, 7 and 8, in some embodiments, the insulating frame 110 may optionally be provided with a shielding portion 115, which is located inside the welding portion 131 along the radial direction of the stator winding 120 and is at least partially opposite to the welding surface 132.

[0130] In this embodiment, the insulating frame 110 is further provided with a shielding portion 115. Specifically, the shielding portion 115 is located radially inside the welding portion 131, and at least a portion of the shielding portion 115 is opposite to the welding surface 132.

[0131] It is understandable that during the process of soldering the first lead 121 onto the soldering surface 132, there are solder balls on the soldering surface 132. By providing a shielding part 115 on the radial inner side of the soldering part 131, the solder balls can be prevented from flowing inward to the stator winding 120, which is beneficial to further improve the reliability of the stator structure 100.

[0132] In addition, before welding, the insulation layer on the surface of the first lead 121 is usually melted by a heat source. By providing a shielding part 115 on the radial inner side of the welding part 131, the heat source can be blocked to prevent the heat source from damaging the inner stator winding 120, which is beneficial to further improve the reliability of the stator structure 100.

[0133] As shown in Figures 2, 4, 5, 6, 7 and 8, in some embodiments, the first terminal 130 may optionally include a mounting portion 240, which is disposed on the insulating frame 110 and connected to the welding portion 131; wherein the connection between the mounting portion 240 and the welding portion 131 is opposite to at least a partial shielding portion 115.

[0134] In this embodiment, the first terminal 130 further includes a mounting portion 240. Specifically, the mounting portion 240 is disposed on the insulating frame 110 and is connected to the welding portion 131. Optionally, when there are two welding portions 131, the mounting portion 240 is located between the two welding portions 131, and both ends of the mounting portion 240 are respectively connected to the two welding portions 131.

[0135] It is understandable that the soldering part 131 is surrounded by solder pillars 137 and solder pillars 230, which can block the solder balls and heat sources on the soldering surface 132 to a certain extent, making it easy for the solder balls and heat sources to flow out through the connection between the mounting part 240 and the soldering part 131. By positioning the shielding part 115 opposite to this connection, the blocking effect of the shielding part 115 can be improved. This can prevent the solder balls from flowing inward to the stator winding 120, while also blocking the heat source to avoid the heat source damaging the inner stator winding 120, which is conducive to further improving the reliability of the stator structure 100.

[0136] Optionally, the welding part 131 and the mounting part 240 are an integral structure.

[0137] As shown in Figures 5, 6, 7 and 8, in some embodiments, optionally, the insulating frame 110 is further provided with a second support surface 116, and the welding part 131 is provided on the second support surface 116, with one side of the welding part 131 facing away from the first lead wire 121 being in contact with the second support surface 116.

[0138] In this embodiment, the insulating frame 110 is further provided with a second support surface 116. Specifically, the welding part 131 is disposed on the second support surface 116, and the side of the welding part 131 facing away from the first lead wire 121 is attached to the second support surface 116. That is, the bottom surface of the welding part 131 is attached to the second support surface 116, which helps to ensure the assembly stability between the first terminal 130 and the insulating frame 110, and thus helps to improve the reliability of the stator structure 100.

[0139] As shown in Figures 1, 10, 11, 12 and 13, in some embodiments, the stator winding 120 may optionally include a second lead 122, and the stator structure 100 may include a lead outlet 250 and a second terminal 260. The lead outlet 250 is disposed on the insulating frame 110, the second terminal 260 is disposed on the lead outlet 250 and partially exposed outside the lead outlet 250, and the second lead 122 is disposed on the second terminal 260.

[0140] In this embodiment, the stator structure 100 further includes a terminal block 250 and a second terminal 260. Specifically, the terminal block 250 is disposed on the insulating frame 110, and the second terminal 260 is disposed on the terminal block 250, with a portion of the second terminal 260 exposed outside the terminal block 250. A second lead wire 122 is disposed on the second terminal 260, and the portion of the second terminal 260 exposed outside the terminal block 250 can be connected to the connector of the entire washing machine. In other words, the second lead wire 122 is electrically connected to the power supply through the second terminal 260.

[0141] Optionally, the number of second leads 122 is 3. It can be understood that the second terminal 260 corresponds one-to-one with the second leads 122.

[0142] In one specific embodiment, optionally, the insulating frame 110 comprises a winding support portion and a pin mounting portion, with the pin mounting portion located above the winding support portion. The winding support portion has a winding (stator winding 120) for winding and providing insulation. The pin mounting portion is used to mount pins (first terminal 130) and fix the winding lead wire (first lead wire 121). The pin mounting portion has a pin mounting groove, a pin pad support portion (second support surface 116), multiple wire-blocking posts (limiting posts 111), and a wire-passing support portion (support post 112).

[0143] The common terminal pin (first terminal 130) consists of a left soldering part (first soldering part 180), a right soldering part (second soldering part 190), and a mounting part 240. The mounting part 240 connects the left and right soldering parts, realizing an electrical connection between them. The common terminal pin is installed in the pin mounting slot of the insulating frame 110. The soldering part 131 is installed on and abuts against the pin soldering pad support part (second support surface 116) of the insulating frame 110. One phase winding lead (first lead 121) passes through the left side of the right pad and is soldered to the right pad. The other phase winding lead (first lead 121) passes through the right side of the left pad and is soldered to the left pad, thereby realizing the soldering of the three-phase winding leads to the common terminal (first terminal 130).

[0144] The right side of the insulating frame 110 has two guide posts (limiting posts 111), a support (first support surface 113), and a ramp (guide surface 114). One guide post (limiting post 111) is located on the left side of the right pin pad support, and the other guide post (limiting post 111) is located on the right side of the right pin pad support. The two guide posts (limiting posts 111) limit the right winding lead (first lead 121). When the right winding lead passes through, it first passes through one of the guide posts (limiting posts 111), then through the right pin pad (second welding part 190), and then through the other guide post (limiting post 111). The winding is close to the two guide posts (limiting posts 111), so that the enameled wire passes through the right pad in a straight line, fixing the position of the enameled wire and facilitating the stability and consistency of the subsequent welding process between the enameled wire and the pin. Furthermore, the winding is positioned close to two guide posts (limiting posts 111) to prevent the first lead from contacting the sharp edge of the metal pin (first terminal 130), thus avoiding damage to the enameled wire. Then, the enameled wire (first lead 121) passes through the support portion (first support surface 113), and then bends against another guide post (limiting post 111), entering the frame (insulating frame 110) along the ramp (guide surface 114) to continue winding. To facilitate winding and reduce strain on the enameled wire during winding, both guide posts (limiting posts 111) have chamfered edges (first chamfer 150) at their contact points with the enameled wire.

[0145] The left winding lead (first lead 121) first rests against the wire support post (support post 112), and then against the limiting post 111 and the pin soldering post (second soldering post 139) for winding. The limiting post 111 and the pin soldering post (second soldering post 139) limit the left winding lead, ensuring the enameled wire passes through the left pad in a straight line, fixing the position of the enameled wire and facilitating 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; a reliable connection between the right side of the left pad and the winding enameled wire is sufficient. Therefore, a wire-blocking post (limiting post 111) needs to be installed on the right side of the frame (insulating frame 110) to prevent the enameled wire from contacting the sharp edge of the pin (first terminal 130), ensuring reliable electrical connection.

[0146] The lead-through support post (support post 112) acts as a reinforcing rib, distributing the tension of the winding enameled wire (first lead 121) on the guide post (limit post 111) during the lead-through process, thus reducing the risk of deformation of the guide post (limit post 111) under stress. Both the support post 112 and the guide post (limit post 111) have chamfered edges at their contact points with the enameled wire.

[0147] Both left and right pin pads include a pad plane (soldering surface 132), solder pillars 137, and auxiliary solder pillars (solder pillars 230). The winding lead (first lead 121) passes through the pad plane and is positioned on the upper pin soldering surface. Solder pillars 137 are located at both ends of the soldering plane, with two pillars 137 at each end: a first solder pillar, a second solder pillar (two first solder pillars 138), a third solder pillar, and a fourth solder pillar (two second solder pillars 139). The first and second solder pillars (two first solder pillars 138) form a wire guide groove (first wire guide groove 210), and the third and fourth solder pillars (two second solder pillars 139) form a wire guide groove (second wire guide groove 220). The enameled wire passes through the first wire guide groove 210 and the second wire guide groove 220, respectively. The wire guide groove 133 is used for soldering, guiding the solder beads to spread evenly and covering the enameled wire. Furthermore, the wire guide 133 can also limit the enameled wire (first lead 121) to ensure that the enameled wire is stretched straight and flat on the solder surface (soldering surface 132), thus improving the tin plating effect. Among them, the one that truly limits the enameled wire (first lead 121) is the solder pile pillar of the left pad (first soldering part 180) (the solder pile pillar 137 located radially inward among the two solder pile pillars 137 of the first soldering part 180 that are far away from the second soldering part 190).

[0148] The solder pad (soldering section 131) also has auxiliary solder pillars (solder pillars 230) to reduce solder misalignment and exposed enameled wire during soldering. Understandably, during soldering, solder balls tend to flow to one side and are not evenly spread on the solder surface (soldering surface 132). Adding auxiliary solder pillars (solder pillars 230) can effectively reduce the proportion of solder misalignment and exposed enameled wire during soldering. Auxiliary solder pillars (solder pillars 230) are provided on both the left and right sides of the solder pad plane (soldering surface 132). Optionally, one auxiliary tin-plated pillar is provided on the side with the bend, and two auxiliary tin-plated pillars are provided on the opposite side.

[0149] The four solder pillars 137 of the left-side pin pad (first soldering part 180) are located inside the area formed by the wire-blocking pillars (limiting pillars 111) of the insulating frame 110. The two solder pillars 137 of the pin (first terminal 130) located radially inward are on the inner side wall of the wire passage groove 133, and are both located inside the inner wall of the two limiting pillars 111 (the side of the limiting pillar 111 away from the center of the stator structure). That is, when the enameled wire (first lead wire 121) passes through the pin passage groove (passing groove 133), it only contacts the side wall of the wire-blocking pillar (limiting pillar 111) of the insulating frame 110, and does not contact the edge of the inner wall of the pin (first terminal 130), ensuring that the enameled wire coating is not damaged and ensuring the reliability of the electrical connection.

[0150] The solder pile 137 of the right-side pin pad (second soldering part 190) faces the hanging post (limiting post 111) of the insulating frame 110, and the solder pile 137 is located inside the inner wall of the 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 passage groove 133. That is, when the enameled wire (first lead wire 121) passes through the pin passage groove (passing groove 133), it only contacts the side wall of the wire blocking post (limiting post 111) of the insulating frame 110, and does not contact the inner edge of the pin (first terminal 130), so as to ensure that the enameled wire coating is not damaged and the electrical connection is reliable.

[0151] According to a second aspect of this application, an electric motor is provided, including a stator structure 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the stator structure 100, which will not be repeated here.

[0152] According to a third aspect of this application, a washing device is provided, including a stator structure 100 or a motor as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the stator structure 100 or the motor, which will not be repeated here.

[0153] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0154] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0155] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stator structure, wherein, include: An insulating frame, wherein the insulating frame is provided with limiting posts; A stator winding is disposed on the insulating frame, the stator winding includes a first lead wire, the first lead wire being able to contact the limiting post; A first terminal is disposed on the insulating frame. The first terminal includes a welding part, the welding part includes a welding surface and a wire passage groove, the first lead wire passes through the wire passage groove and is connected to the welding surface, the wire passage groove includes a first groove wall and a second groove wall opposite to each other, the first groove wall being closer to the center of the stator structure than the second groove wall. Wherein, along the radial direction of the stator winding, the side of the limiting post facing away from the center of the stator structure is farther away from the center of the stator structure than the first slot wall.

2. The stator structure according to claim 1, wherein, The outer wall of the limiting post is provided with a first chamfer, which is used to contact the first lead wire.

3. The stator structure according to claim 1, wherein, The insulating frame is also provided with a support column. Along the radial direction of the stator winding, the support column is located inside the limiting column and opposite to the limiting column. The support column can contact the first lead wire.

4. The stator structure according to claim 3, wherein, The outer wall of the support column is provided with a second chamfer, which is used to contact the first lead wire.

5. The stator structure according to any one of claims 1 to 4, wherein, The number of the limiting posts is multiple. Along the circumference of the stator winding, at least two of the limiting posts are located on both sides of the welded part and are arranged opposite to each other. Along the radial direction of the stator winding, at least one of the limiting posts has a side facing away from the center of the stator structure that is farther away from the center of the stator structure than the first slot wall.

6. The stator structure according to claim 5, wherein, The number of welding parts is two, and at least two of the limiting posts are located between the two welding parts respectively, forming a wire-locking groove, which is connected to the wire-passing groove; The number of first lead wires is two. One first lead wire passes through the wire clamping groove and the wire passage groove of one of the welding parts respectively, and is connected to the welding surface. The other first lead wire passes through the wire clamping groove and the wire passage groove of the other welding part respectively, and is connected to the welding surface.

7. The stator structure according to claim 6, wherein, The two welded portions include a first welded portion and a second welded portion; The insulating frame is further provided with a first support surface, which is located on the side of the second welding part away from the first welding part and can contact the first lead wire. Along the axial direction of the stator winding, the first support surface is flush with the welding surface of the second welding part, or the first support surface is lower than the welding surface of the second welding part.

8. The stator structure according to claim 7, wherein, The insulating frame is also provided with a guide surface, which is connected to the first support surface and located on the side of the first support surface near the center of the stator structure. The guide surface can contact the first lead wire.

9. The stator structure according to any one of claims 1 to 4, wherein, The welded portion includes: The body has a welding surface; Multiple solder pillars are spaced apart on the body, and at least two of the solder pillars form the wire guide groove.

10. The stator structure according to claim 9, wherein, The plurality of solder pillars include two first solder pillars and two second solder pillars. Along the circumference of the stator winding, the two first solder pillars and the two second solder pillars are respectively located on both sides of the body. The two first solder pillars form a first wire passage slot, and the two second solder pillars form a second wire passage slot. The first lead wire passes through the first wire passage slot and the second wire passage slot respectively.

11. The stator structure according to claim 9, wherein, The welding section also includes: Solder pillars are provided on the body and are located on different sides of the body, respectively, along with at least one solder pile pillar.

12. The stator structure according to claim 11, wherein, The solder pillars are spaced apart from at least one of the solder pile pillars.

13. The stator structure according to claim 11, wherein, The number of solder pillars is multiple, with at least two solder pillars located on opposite sides of the body.

14. The stator structure according to any one of claims 1 to 4, wherein, The insulating frame is further provided with a shielding portion, which is located inside the welded portion along the radial direction of the stator winding and is at least partially opposite to the welded surface.

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

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

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

18. An electric motor, wherein, Includes the stator structure as described in any one of claims 1 to 17.

19. A washing device, wherein, include: Stator structure as described in any one of claims 1 to 17; or The motor as described in claim 18.

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