Insulating frame, stator assembly, electric machine and electrically powered device

Abstract

The application discloses an insulating frame, a stator assembly, a motor and an electric device, and belongs to the technical field of motors. The insulating frame has a winding part, a first limiting part and a second limiting part, the winding part is connected with the first limiting part and the second limiting part respectively, and a wire slot is formed around the winding part between the first limiting part and the second limiting part; the first limiting part is used for arranging a cross wire along the length direction of the first limiting part, the first limiting part is provided with a first limiting arm and a second limiting arm, the first limiting arm and the second limiting arm are located at one end of the length direction of the first limiting part, the first limiting arm and the second limiting arm are arranged at intervals, the second limiting arm is located on the side of the first limiting arm away from the wire slot, and the first limiting arm and the second limiting arm are both used for pushing the cross wire to tighten the cross wire. The insulating frame can solve the problem that the winding is easy to interfere with a winding tool in a straight bar state, thereby improving the slot fill rate, and when applied to reverse bending winding, the risk that the cross wire is loose or broken in the winding process can be reduced.

Description

Technical Field

[0001] This application belongs to the field of motor technology, specifically relating to an insulation frame, stator assembly, motor, and electric device. Background Technology

[0002] In related technologies, the stator core is wound in a straight bar state. Since the winding tool itself has a certain volume, in order to avoid interference between the winding tool and the two stator teeth on both sides of the stator teeth being wound, the number of winding turns is usually reduced to ensure the passability of the winding tool, thereby affecting the slot fill factor of the stator assembly. Utility Model Content

[0003] This application aims to provide an insulating frame, stator assembly, motor, and electric equipment. The insulating frame can be used for reverse bending winding of stator core to solve the problem of easy interference between winding and winding tools in straight state, thereby improving slot fill factor. When this insulating frame is applied to reverse bending winding, it can reduce the risk of loosening or breakage of cross wires during the winding process.

[0004] The first aspect of this application proposes an insulating frame having a winding portion, a first limiting portion, and a second limiting portion. The winding portion is connected to the first limiting portion and the second limiting portion, respectively, and a groove is formed between the first limiting portion and the second limiting portion around the winding portion. The first limiting portion is used to lay cross-wires along its own length direction. The first limiting portion is provided with a first limiting arm and a second limiting arm. The first limiting arm and the second limiting arm are located at one end of the length direction of the first limiting portion, and the first limiting arm and the second limiting arm are arranged at intervals. The second limiting arm is located on the side of the first limiting arm facing away from the groove. Both the first limiting arm and the second limiting arm are used to push the cross-wires to tighten them.

[0005] In the above technical solution, a first limiting arm and a second limiting arm are provided at one end of the length direction of the first limiting part. The first limiting arm and the second limiting arm are spaced apart, and the second limiting arm is located on the side of the first limiting arm facing away from the wire groove. In the winding state, the insulation frame of the current winding can be inclined relative to the two adjacent insulation frames, thereby forming a bending shape that is roughly opposite to the circular state of the stator. In this way, the stator teeth on the adjacent sides will not interfere with the winding tool during winding, thereby improving the slot fill factor. Since the insulation frame of the current winding is inclined relative to the two adjacent insulation frames, the second limiting arm can be used to lift the cross wire between the adjacent insulation frames to tighten the cross wire, so that the cross wire has a reasonable length. When switching to the circular state, the first limiting arm can be used to lift the cross wire between the adjacent insulation frames to tighten the cross wire, thereby making it less likely for the cross wire to be pulled off or loosened.

[0006] In some technical solutions, optionally, a first limiting protrusion is provided on the first limiting arm or the second limiting arm, and the first limiting protrusion is provided at intervals corresponding to the first limiting part.

[0007] The first limiting protrusion can be used to confine the cross-wire between the first and second limiting arms, making it difficult for the cross-wire to detach from between them, thus preventing it from coming off the first limiting part. For example, during the transition from reverse winding to circular winding, the cross-wire may be in a loose state when a straight section appears. In this case, the first limiting protrusion can be used to block the cross-wire, preventing it from detaching from the first and second limiting arms. Or, if the cross-wire is subjected to various external forces during motor operation and tends to move upwards, the first limiting protrusion can prevent the cross-wire from detaching from the insulation frame, ensuring the stability and safety of motor operation.

[0008] In some technical solutions, optionally, a through hole is provided at the position of the first limiting part opposite to the first limiting protrusion.

[0009] In the above technical solution, when the insulating frame is injection molded, through holes can be used to ensure that there is enough space when the first limiting protrusion is demolded. In this way, there is no need to set a slider mechanism from the side, which simplifies the mold and reduces the cost of the insulating frame.

[0010] In some technical solutions, optionally, the first limiting protrusion is offset from the second limiting arm in a direction perpendicular to the first limiting arm; and / or the first limiting protrusion is perpendicular to the first limiting arm or the second limiting arm.

[0011] In the above technical solution, the first limiting protrusion and the second limiting arm are offset. This allows for a shorter length of the first limiting arm, for example, approximately equal to the length of the second limiting arm, to ensure structural strength. The offset structure of the first and second limiting arms maintains the limiting effect of the first limiting protrusion on the cross-line while providing a sufficiently wide gap between them. This allows cross-lines with larger diameters to be inserted between the first and second limiting arms, accommodating cross-lines of different diameters. Furthermore, designing the first limiting protrusion perpendicular to either the first or second limiting arm ensures the overall structural strength and stability of both the protrusion and the arm.

[0012] In some technical solutions, optionally, the side surface of the first limiting arm near the end of the first limiting part is an arc surface in the length direction; and / or the side surface of the second limiting arm near the end of the first limiting part is an arc surface in the length direction.

[0013] In the above technical solution, setting the side surface of the first limiting arm near the end of the first limiting part along the aforementioned length direction as an arc surface can reduce damage to the cross-connect when the first limiting arm lifts the cross-connect to tighten it. Setting the side surface of the second limiting arm near the end of the first limiting part along the aforementioned length direction as an arc surface can reduce jamming and obstruction during the cross-connect insertion process when it is inserted between the first and second limiting arms, greatly improving the efficiency of cross-connect insertion.

[0014] In some technical solutions, optionally, the first limiting part is further provided with a limiting plate and a second limiting protrusion. The limiting plate is located at a position corresponding to the second limiting part in the length direction, and the second limiting protrusion is located on the side of the limiting plate opposite to the second limiting part. The first limiting arm is located on the side of the limiting plate in the length direction, and the first limiting arm and the limiting plate are spaced apart in the length direction. And / or the second limiting arm is located on the side of the second limiting protrusion in the length direction, and the second limiting arm and the second limiting protrusion are spaced apart in the length direction.

[0015] In the above technical solution, the limiting plate and the second limiting protrusion are spaced apart to form a guide groove. This provides a guiding path for the installation of the cross-line during assembly, ensuring that the cross-line reaches the predetermined installation position under the guidance of the guide groove, thereby improving installation accuracy and efficiency. Furthermore, it reduces unnecessary material consumption and lowers production costs while maintaining the guiding effect.

[0016] In some technical solutions, optionally, a slot is provided on the side of the first limiting part facing away from the winding part; in the length direction, the slot is located between the second limiting protrusion and the second limiting arm.

[0017] In the above technical solution, a slot is provided to fix the connection position of the tooling. In this way, the tooling can be used to clamp the insulating frame at both ends of the iron core stacking direction, so that the laminations fit more tightly, thereby reducing gaps, lowering resistance, improving the conductivity of the motor, reducing energy loss, and improving the efficiency of the motor.

[0018] In some technical solutions, optionally, in the length direction, the end of the first limiting portion away from the first limiting arm and the second limiting arm is an overlapping portion. The overlapping portion is recessed relative to the end of the first limiting portion having the first limiting arm and the second limiting arm. The overlapping portion is used to stack with the end of the first limiting portion of the adjacent insulating frame having the first limiting arm and the second limiting arm.

[0019] In the above technical solution, by setting overlapping parts, the first limiting parts of adjacent insulating frames can be stacked. During assembly, operators can quickly and accurately align the overlapping parts of adjacent insulating frames, achieving fast and precise assembly, thereby improving assembly efficiency and reducing assembly difficulty. In addition, the stacked arrangement structure can also increase the tightness and integrity of the connection between insulating frames.

[0020] The second aspect of this application proposes a stator assembly, comprising: a stator core having multiple lamination groups, each lamination group including multiple stacked lamination units, each lamination unit having a stator yoke and stator teeth connected to the stator yoke, the stator yokes of adjacent lamination groups being rotatably connected; an insulating frame as proposed in any of the above technical solutions, wherein the number of insulating frames is multiple, and each lamination group has an insulating frame at both ends in the stacking direction; a winding portion corresponding to the stator teeth; and a first limiting portion corresponding to the stator yoke; and multiple coils, with coils wound on the stator teeth and the winding portion, at least a portion of the coils being connected by crossover wires, the crossover wires being arranged on the first limiting portion. Thus, the stator assembly possesses all the beneficial effects of any of the above technical solutions, which will not be elaborated further here.

[0021] In some technical solutions, optionally, the stator assembly has a wound state and a circular state; when the stator assembly is in the wound state, at least one stator yoke and the stator yokes on both sides are arranged relatively inclined, so that the stator yoke and the stator yokes on both sides form a groove area with one end open, and the stator teeth are all arranged facing away from the groove area. At the relatively inclined stator yoke, the second limiting arm pushes the cross wire to tighten the cross wire; when the stator assembly is in the circular state, the stator yokes of multiple lamination groups form a ring, and the stator teeth are all arranged facing the center of the ring. At the circumferentially adjacent stator yokes, the first limiting arm pushes the cross wire to tighten the cross wire.

[0022] In the above technical solution, by setting a first limiting arm and a second limiting arm arranged at intervals on the first limiting part to push the cross wire in the winding state and the circular state respectively, the cross wire will not loosen when the stator assembly is in the winding state. When the winding is completed and the stator is in the circular state, the cross wire will not be pulled apart. At the same time, it can also prevent the cross wire from detaching from the insulation frame in the axial direction, improve the stability of the winding, and make the motor operation more reliable.

[0023] The third aspect of this application proposes an electric motor, including a stator assembly as described in any of the foregoing technical solutions. Thus, the motor possesses all the beneficial effects of any of the foregoing technical solutions, which will not be elaborated further here.

[0024] The fourth aspect of this application provides an electric device comprising a motor as described in any of the foregoing technical solutions. Therefore, the electric device possesses all the beneficial effects of any of the foregoing technical solutions, which will not be elaborated further here.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] 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:

[0027] Figure 1 This is one of the structural schematic diagrams of the insulating frame in some embodiments of this application;

[0028] Figure 2 This is a second schematic diagram of the structure of the insulating frame in some embodiments of this application;

[0029] Figure 3 This is one of the structural schematic diagrams of the stator assembly in some embodiments of this application;

[0030] Figure 4 This is a second schematic diagram of the stator assembly in some embodiments of this application;

[0031] Figure 5 These are schematic diagrams of the stator core structure in some embodiments of this application;

[0032] Figure 6 This is the third of the structural schematic diagrams of the stator assembly in some embodiments of this application;

[0033] Figure 7 yes Figure 6 A partial structural diagram of the stator assembly in the middle;

[0034] Figure 8 These are structural block diagrams of the motor in some embodiments of this application;

[0035] Figure 9 This is a structural block diagram of the electric device in some embodiments of this application.

[0036] Figure label:

[0037] 100 Insulating frame; 110 Winding part; 120 First limiting part; 121 First limiting arm; 122 Second limiting arm; 123 First limiting protrusion; 124 Through hole; 125 Limiting plate; 126 Second limiting protrusion; 127 Slot; 128 Overlapping part; 130 Second limiting part; 140 Wire groove;

[0038] 200 Stator assembly; 210 Stator core; 211 Lamination group; 212 Lamination unit; 213 Stator yoke; 214 Stator tooth; 220 Coil; 230 Crossover wire;

[0039] 300 motors; 400 electrical equipment. Detailed Implementation

[0040] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] The terms "first," "second," and "third" in the specification and claims of this application may explicitly or implicitly include one or more of the features described herein. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] In the description of this application, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In the field of electric motor manufacturing, the stator core is one of the core components of a motor, and its winding quality directly affects the motor's performance, efficiency, and reliability. To improve power density, reduce copper losses, and ultimately enhance motor efficiency and optimize performance, the stator core must be wound with as much wire as possible within the limited core slot space to increase the slot fill factor. Slot fill factor means that, within the same volume, the motor can accommodate more wires.

[0045] In related technologies, the stator core is wound in a straight bar state. Since the winding tool itself has a certain volume, in order to avoid interference between the winding tool and the two stator teeth on both sides of the stator teeth being wound, the number of winding turns is usually reduced to ensure the passability of the winding tool, thereby affecting the slot fill factor of the stator assembly.

[0046] In view of this, in order to solve the problem of easy interference between the winding and the winding tool in the straight state, and thus improve the slot fill rate, this application provides an insulating frame, including: the insulating frame having a winding part, a first limiting part, and a second limiting part. The winding part is connected to the first limiting part and the second limiting part respectively, and a slot is formed around the winding part between the first limiting part and the second limiting part. The first limiting part is used to lay cross-wires along its own length direction, and the first limiting part is provided with a first limiting arm and a second limiting arm. The first limiting arm and the second limiting arm are located at one end of the length direction of the first limiting part, and the first limiting arm and the second limiting arm are arranged at intervals. The second limiting arm is located on the side of the first limiting arm facing away from the slot. Both the first limiting arm and the second limiting arm are used to push the cross-wires to tighten them.

[0047] When the insulating frame is used for reverse bending winding, in the winding state, the insulating frame currently being wound can be tilted relative to the two adjacent insulating frames, thus forming a bending shape that is roughly opposite to the circular state of the stator. In this way, during winding, the stator teeth on both sides will not interfere with the winding tool, thereby improving the slot fill factor. Since the insulating frame currently being wound is tilted relative to the two adjacent insulating frames, the second limiting arm can be used to lift the cross wire between adjacent insulating frames to tighten the cross wire, so that the cross wire has a reasonable length. When switching to the circular state, the first limiting arm can be used to lift the cross wire between adjacent insulating frames to tighten the cross wire, thus making it less likely for the cross wire to be pulled off or loosened.

[0048] It is understood that the insulating frame provided in this application embodiment can be used in various electric devices where the stator assembly serves as an insulating support, the stator assembly serves as a power generation element, or the motor serves as a drive mechanism. Electric devices include, but are not limited to, washing equipment and industrial automation equipment. Washing equipment includes, but is not limited to, at least one of dryers, washing machines, and washer-dryer combos.

[0049] The following is combined with Figures 1 to 9 The insulating frame, stator assembly, motor, and electric equipment provided in the embodiments of this application will be described in detail.

[0050] It is understandable that the length direction can be understood as... Figure 1 The X-direction, perpendicular to the first limiting arm 121, can be understood as... Figure 1 Center Y direction.

[0051] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, this application provides an insulating frame 100, the structure of which includes a winding portion 110, a first limiting portion 120, and a second limiting portion 130.

[0052] The winding portion 110 is connected to the first limiting portion 120 and the second limiting portion 130 respectively, and a wire groove 140 is formed between the first limiting portion 120 and the second limiting portion 130 around the winding portion 110.

[0053] The first limiting part 120 is used to lay the cross wire 230 along its own length direction. The first limiting part 120 is provided with a first limiting arm 121 and a second limiting arm 122. The first limiting arm 121 and the second limiting arm 122 are located at one end of the length direction of the first limiting part 120. The first limiting arm 121 and the second limiting arm 122 are arranged at intervals. The second limiting arm 122 is located on the side of the first limiting arm 121 facing away from the wire groove 140. Both the first limiting arm 121 and the second limiting arm 122 are used to push the cross wire 230 to tighten the cross wire 230.

[0054] The winding section 110 serves as the basic structure for winding the coil 220 and is typically a cylindrical or cylindrical structure. The coil 220 is directly wound around the winding section 110. The first limiting section 120 and the second limiting section 130 stand opposite each other and are respectively located at both ends of the winding section 110, forming the boundary of the wire groove 140. The wire groove 140 is a winding space enclosed by the winding section 110, the first limiting section 120, and the second limiting section 130; its main function is to accommodate and restrict the coil 220, preventing it from spreading out in any direction.

[0055] The cross wire 230 is used to connect the coils 220 on different slots 140 to form a complete current path.

[0056] The first limiting part 120 is also used to lay the crossbar 230 along its own length direction. It is provided with a first limiting arm 121 and a second limiting arm 122. The first limiting arm 121 and the second limiting arm 122 are located at the same end of the first limiting part 120, that is, at one end in the length direction. The first limiting arm 121 and the second limiting arm 122 are spaced apart to form an accommodating space, thereby placing the crossbar 230 between them and tightening the crossbar 230. In this way, when laying the cross wire 230, in the winding state, the insulation frame 100 currently being wound can be tilted relative to the two adjacent insulation frames 100, thus forming a bending shape that is roughly opposite to the circular state of the stator assembly 200. In this way, during winding, the stator teeth 214 on the adjacent sides will not interfere with the winding tool, thereby improving the slot fill factor. Since the insulation frame 100 currently being wound is tilted relative to the two adjacent insulation frames 100, the second limiting arm 122 can be used to lift the cross wire 230 between the adjacent insulation frames 100 to tighten the cross wire 230, so that the cross wire 230 has a reasonable length. When switching to the circular state, the first limiting arm 121 can be used to lift the cross wire 230 between the adjacent insulation frames 100 to tighten the cross wire 230, thus making it less likely for the cross wire to be pulled off or loosened.

[0057] In the above embodiment, by providing a first limiting arm 121 and a second limiting arm 122 arranged at intervals on the first limiting part 120 to push the cross wire 230, the second limiting arm 122 is located on the side of the first limiting arm 121 facing away from the wire groove 140, so that the cross wire 230 is between the first limiting arm 121 and the second limiting arm 122. When the insulating frame 100 is used for reverse bending winding, in the winding state, the insulating frame 100 currently being wound can be tilted relative to the two adjacent insulating frames 100, thereby forming a bending shape that is roughly opposite to the circular state of the stator assembly 200. In this way, during winding, the stator teeth 214 on the adjacent sides will not interfere with the winding tool, thereby improving the slot fill factor. Since the insulating frame 100 currently being wound is tilted relative to the two adjacent insulating frames 100, the second limiting arm 122 can be used to lift the cross wire 230 between the adjacent insulating frames 100 to tighten the cross wire 230, so that the cross wire 230 has a reasonable length. When switching to the circular state, the first limiting arm 121 can be used to lift the cross wire 230 between the adjacent insulating frames 100 to tighten the cross wire 230, thereby making it less likely for the cross wire 230 to be pulled off or loosened.

[0058] In some embodiments, a first limiting protrusion 123 is provided on the first limiting arm 121 or the second limiting arm 122. The first limiting protrusion 123 is provided in a corresponding manner to the first limiting portion 120 at intervals.

[0059] Specifically, the first limiting protrusion 123 is disposed on the first limiting arm 121 or the second limiting arm 122, and is disposed correspondingly to the first limiting part 120 at intervals. In other words, the first limiting protrusion 123 is disposed above the receiving space enclosed by the first limiting arm 121 and the second limiting arm 122.

[0060] The first limiting protrusion 123 can be used to limit the cross wire 230 between the first limiting arm 121 and the second limiting arm 122, making it difficult for the cross wire 230 to detach from the first limiting arm 121 and the second limiting arm 122, thus preventing the cross wire 230 from detaching from the first limiting part 120. For example, during the transition from reverse winding to circular winding, the cross wire 230 may be in a loose state when a straight section appears. In this case, the first limiting protrusion 123 can be used to block the cross wire 230, thereby preventing it from detaching from the first limiting arm 121 and the second limiting arm 122. Alternatively, when the cross wire 230 is subjected to various external forces during the operation of the motor 300 and tends to move upwards, the first limiting protrusion 123 can prevent the cross wire 230 from detaching from the insulating frame 100, ensuring the stability and safety of the motor 300 operation.

[0061] Understandably, there are no special requirements for the position of the first limiting protrusion 123; it is only necessary to ensure that it can be blocked in time when it moves upward across the line 230.

[0062] In the above embodiment, a through hole 124 is provided in the first limiting part 120 opposite to the first limiting protrusion 123. The through hole 124 is a reserved space for the molding and demolding of the insulating frame 100. When the insulating frame 100 is injection molded, the through hole 124 can be used to ensure that there is enough space for the first limiting protrusion 123 to demold. In this way, there is no need to set a slider mechanism from the side, thereby simplifying the mold and reducing the cost of the insulating frame.

[0063] In some embodiments, the first limiting protrusion 123 and the second limiting arm 122 are misaligned in a direction perpendicular to the first limiting arm 121.

[0064] In actual assembly, if the distance between the first limiting protrusion 123 and the second limiting arm 122 is too narrow, it will cause great difficulty in the wire clamping operation, and may even prevent the cross wire 230 from being smoothly clamped in, or damage the cross wire 230 during forced clamping. Therefore, in the above embodiment, by setting the first limiting protrusion 123 and the second limiting arm 122 in a direction perpendicular to the first limiting arm 121, that is, the two are not aligned in the direction perpendicular to the first limiting arm 121, but are offset by a certain distance, so as to provide sufficient clamping space for the cross wire 230. In this way, the operator can more easily and accurately clamp the cross wire 230 between the first limiting arm 121 and the second limiting arm 122, which not only improves the assembly efficiency, but also effectively protects the cross wire 230 from damage, ensuring that the motor 300 can operate stably and reliably afterwards.

[0065] By misaligning the first limiting protrusion 123 with the second limiting arm 122, and considering factors such as the structural strength of the first limiting arm 121, the structural length of the first limiting arm 121 is set to be relatively short, for example, roughly equivalent to the structural length of the second limiting arm 122. This misalignment of the first limiting protrusion 123 with the second limiting arm 122 ensures that the first limiting protrusion 123 effectively limits the cross-line 230, while also creating a sufficiently wide gap between the first limiting protrusion 123 and the second limiting arm 122. This allows cross-lines 230 with larger diameters to be inserted between the first limiting arm 121 and the second limiting arm 122 along this gap, thus accommodating cross-lines 230 of different diameters.

[0066] In the above embodiments, the first limiting protrusion 123 is perpendicular to the first limiting arm 121 or the second limiting arm 122.

[0067] It is understandable that the main function of the first limiting protrusion 123 is to restrict the cross wire 230 from detaching from above. The main force direction of the first limiting protrusion 123 is the vertical force applied when the cross wire 230 attempts to detach. When the first limiting protrusion 123 is perpendicular to the first limiting arm 121 or the second limiting arm 122, the lever arm is shorter, the overall structure is stronger, and the force can be more effectively transmitted and distributed to the entire limiting arm, making it less prone to deformation or breakage. However, if it is inclined, the force between the first limiting protrusion 123 and the cross wire 230 will be decomposed into a component force along the inclined direction. This component force may not be able to effectively prevent the cross wire 230 from moving, thus reducing the limiting effect. Therefore, in the above embodiment, the first limiting protrusion 123 is designed to be perpendicular to the first limiting arm 121 or the second limiting arm 122; this can ensure the overall structural strength and stability of the first limiting protrusion 123 and the first limiting arm 121 or the second limiting arm 122.

[0068] In some embodiments, in the length direction, the side surface of the first limiting arm 121 that approaches the end of the first limiting part 120 is an arc surface.

[0069] It is understandable that the side surface of the first limiting arm 121 near the end of the first limiting part 120 along the aforementioned length direction is set as an arc surface, which can reduce damage to the cross line 230 when the first limiting arm 121 lifts the cross line 230 to tighten the cross line 230.

[0070] In some embodiments, the side surface of the second limiting arm 122 near the end of the first limiting part 120 is an arc surface in the length direction; when the cross wire 230 is inserted between the first limiting arm 121 and the second limiting arm 122, the jamming and obstruction during the insertion process of the cross wire 230 can be reduced, thereby improving the efficiency of the wire clamping.

[0071] In some embodiments, the first limiting portion 120 is further provided with a limiting plate 125 and a second limiting protrusion 126. The limiting plate 125 is located at a position corresponding to the second limiting portion 130 in the length direction. The second limiting protrusion 126 is located on the side of the limiting plate 125 opposite to the second limiting portion 130.

[0072] Specifically, the limiting plate 125 and the second limiting protrusion 126 are spaced apart to form a guide groove. In this way, a guiding path can be provided for the installation of the cross-line 230 during the assembly process, ensuring that the cross-line 230 can reach the predetermined installation position under the guidance of the guide groove, thereby improving the accuracy and efficiency of installation.

[0073] In the above embodiment, the first limiting arm 121 is located on one side of the limiting plate 125 along its length, and the first limiting arm 121 and the limiting plate 125 are spaced apart along their length. It is understood that the second limiting arm 122 can also be located on one side of the second limiting protrusion 126 along its length, and the second limiting arm 122 and the second limiting protrusion 126 are spaced apart along their length. This way, while ensuring the guiding effect, unnecessary material consumption can be reduced, and production costs can be lowered.

[0074] In some embodiments, the first limiting portion 120 has a slot 127 on the side opposite to the winding portion 110. In the length direction, the slot 127 is located between the second limiting protrusion 126 and the second limiting arm 122.

[0075] In the above embodiment, the slot 127 provides a fixed position for the tooling connection. This allows the tooling to clamp the insulating frames 100 at both ends of the iron core stacking direction, making the laminations fit more tightly, thereby reducing gaps, lowering resistance, improving the conductivity of the motor 300, reducing energy loss, and increasing the efficiency of the motor 300. Furthermore, the slot 127 is positioned between the second limiting protrusion 126 and the second limiting arm 122. Since there is a certain gap between the second limiting protrusion 126 and the second limiting arm 122, placing the slot 127 in this gap area fully utilizes this unused space, avoiding additional occupation of installation space for other key components, making the entire structure more compact and rational.

[0076] In some embodiments, in the length direction, the end of the first limiting portion 120 away from the first limiting arm 121 and the second limiting arm 122 is an overlapping portion 128. The overlapping portion 128 is recessed relative to the end of the first limiting portion 120 having the first limiting arm 121 and the second limiting arm 122. The overlapping portion 128 is stacked with the end of the first limiting portion 120 of the adjacent insulating frame 100 having the first limiting arm 121 and the second limiting arm 122.

[0077] In the above embodiment, by setting the overlapping portion 128, the first limiting portion 120 of adjacent insulating frames 100 can be stacked. During assembly, the operator can quickly and accurately align the overlapping portion 128 of adjacent insulating frames 100 to achieve fast and accurate assembly, thereby improving assembly efficiency and reducing assembly difficulty. In addition, the stacked arrangement structure can also increase the connection tightness and integrity between insulating frames 100.

[0078] Reference Figures 3 to 7 In some embodiments, this application also provides a stator assembly 200, including: a stator core 210, a plurality of coils 220 and an insulating frame 100 as provided in any of the above embodiments.

[0079] Reference Figure 3 , Figure 4 and Figure 5 The stator core 210 has multiple lamination groups 211, each lamination group 211 including multiple stacked lamination units 212. Each lamination unit 212 has a stator yoke 213 and stator teeth 214 connected to the stator yoke 213. The stator yokes 213 of adjacent lamination groups 211 are rotatably connected. Multiple insulating frames 100 are provided at both ends of the stacking direction of each lamination group 211. A winding portion 110 is correspondingly arranged with the stator teeth 214, and a first limiting portion 120 is correspondingly arranged with the stator yoke 213. (The last sentence is a repetition of the previous one and can be omitted.)

[0080] Therefore, the stator assembly 200 has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0081] Reference Figure 3 , Figure 6 and Figure 7 In some embodiments, the stator assembly 200 has a wound state and a circular state. When the stator assembly 200 is in the wound state, at least one stator yoke 213 and the stator yokes 213 on both sides are arranged relatively inclined, so that the stator yokes 213 and the stator yokes 213 on both sides form a groove area with one end open. The stator teeth 214 are all arranged facing away from the groove area. At the relatively inclined stator yokes 213, the second limiting arm 122 pushes the cross wire 230 to tighten the cross wire 230. When the stator assembly 200 is in the circular state, the stator yokes 213 of the multiple lamination groups 211 form a ring. The stator teeth 214 are all arranged facing the center of the ring. At the circumferentially adjacent stator yokes 213, the first limiting arm 121 pushes the cross wire 230 to tighten the cross wire 230.

[0082] It is understandable that Zhou Xiang can be interpreted as Figure 6 In the C direction.

[0083] In the above embodiment, by providing a first limiting arm 121 and a second limiting arm 122 arranged at intervals on the first limiting part 120 to push the cross wire 230, the second limiting arm 122 is located on the side of the first limiting arm 121 facing away from the wire groove 140, so that the cross wire 230 is between the first limiting arm 121 and the second limiting arm 122. When the insulating frame 100 is used for reverse bending winding, in the winding state, the insulating frame 100 currently being wound can be tilted relative to the two adjacent insulating frames 100, thereby forming a bending shape that is roughly opposite to the circular state of the stator assembly 200. In this way, during winding, the stator teeth 214 on the adjacent sides will not interfere with the winding tool, thereby improving the slot fill factor. Since the insulating frame 100 currently being wound is tilted relative to the two adjacent insulating frames 100, the second limiting arm 122 can be used to lift the cross wire 230 between the adjacent insulating frames 100 to tighten the cross wire 230, so that the cross wire 230 has a reasonable length. When switching to the circular state, the first limiting arm 121 can be used to lift the cross wire 230 between the adjacent insulating frames 100 to tighten the cross wire 230, thereby making it less likely for the cross wire 230 to be pulled off or loosened.

[0084] Reference Figures 3 to 8 In some embodiments, this application also provides a motor 300 having the stator assembly 200 provided in any of the above embodiments. Thus, the motor 300 has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0085] Reference Figure 8 and Figure 9 In some embodiments, this application also provides an electric device 400 having the motor 300 provided in any of the above embodiments. Thus, the electric device 400 possesses all the beneficial effects of any of the above embodiments, which will not be elaborated further here.

[0086] It is understood that the electric equipment 400 includes, but is not limited to, washing equipment and industrial automation equipment. Among them, washing equipment includes, but is not limited to, at least one of dryers, washing machines, and washer-dryer combos.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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.

[0088] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An insulating frame, characterized in that, The insulating frame has a winding portion, a first limiting portion and a second limiting portion. The winding portion is connected to the first limiting portion and the second limiting portion respectively, and a groove is formed between the first limiting portion and the second limiting portion around the winding portion. The first limiting part is used to lay cross wires along its own length direction. The first limiting part is provided with a first limiting arm and a second limiting arm. The first limiting arm and the second limiting arm are located at one end of the length direction of the first limiting part. The first limiting arm and the second limiting arm are arranged at intervals. The second limiting arm is located on the side of the first limiting arm facing away from the wire groove. Both the first limiting arm and the second limiting arm are used to push the cross wire to tighten the cross wire.

2. The insulating frame according to claim 1, characterized in that, The first limiting arm or the second limiting arm is provided with a first limiting protrusion, and the first limiting protrusion is provided at intervals corresponding to the first limiting part.

3. The insulating frame according to claim 2, characterized in that, The first limiting part has a through hole at the position opposite to the first limiting protrusion.

4. The insulating frame according to claim 2 or 3, characterized in that, In a direction perpendicular to the first limiting arm, the first limiting protrusion is offset from the second limiting arm; and / or The first limiting protrusion is perpendicular to either the first limiting arm or the second limiting arm.

5. The insulating frame according to any one of claims 1 to 3, characterized in that, In the length direction, the side surface of the first limiting arm near the end of the first limiting part is an arc surface; and / or In the length direction, the side surface of the second limiting arm near the end of the first limiting part is an arc surface.

6. The insulating frame according to any one of claims 1 to 3, characterized in that, The first limiting part is also provided with a limiting plate and a second limiting protrusion. The limiting plate is located at a position corresponding to the second limiting part in the length direction, and the second limiting protrusion is located on the side of the limiting plate opposite to the second limiting part. The first limiting arm is located on one side of the limiting plate along the length direction, and the first limiting arm and the limiting plate are spaced apart along the length direction; and / or the second limiting arm is located on one side of the second limiting protrusion along the length direction, and the second limiting arm and the second limiting protrusion are spaced apart along the length direction.

7. The insulating frame according to claim 6, characterized in that, The first limiting part has a slot on the side opposite to the winding part; In the length direction, the slot is located between the second limiting protrusion and the second limiting arm.

8. The insulating frame according to any one of claims 1 to 3, characterized in that, In the length direction, the end of the first limiting portion away from the first limiting arm and the second limiting arm is an overlapping portion. The overlapping portion is recessed relative to the end of the first limiting portion having the first limiting arm and the second limiting arm. The overlapping portion is arranged to be stacked with the end of the first limiting portion of the adjacent insulating frame having the first limiting arm and the second limiting arm.

9. A stator assembly, characterized in that, include: A stator core having multiple lamination groups, each lamination group including multiple stacked lamination units, each lamination unit having a stator yoke and stator teeth connected to the stator yoke, the stator yokes of adjacent lamination groups being rotatably connected. The insulating frame as described in any one of claims 1 to 8 is a plurality of insulating frames, and each of the lamination groups is provided with an insulating frame at both ends in the stacking direction, the winding portion is provided corresponding to the stator teeth, and the first limiting portion is provided corresponding to the stator yoke portion; Multiple coils are provided, with the coils wound on the stator teeth and the winding portion, and at least a portion of the coils are connected by cross wires, which are arranged on the first limiting portion.

10. The stator assembly according to claim 9, characterized in that, The stator assembly has a wound state and a circular state; When the stator assembly is in the winding state, at least one stator yoke and the stator yokes on both sides are arranged at an angle relative to each other, such that the stator yoke and the stator yokes on both sides form a groove area with one end open. The stator teeth are all arranged facing away from the groove area. At the relatively inclined stator yoke, the second limiting arm pushes the cross wire to tighten the cross wire. When the stator assembly is in the circular state, the stator yokes of the multiple lamination groups form a ring, and the stator teeth are all arranged facing the center of the ring. At the circumferentially adjacent stator yokes, the first limiting arm pushes the cross wire to tighten the cross wire.

11. An electric motor, characterized in that, Includes the stator assembly as described in claim 9 or 10.

12. An electric device, characterized in that, Including the motor as described in claim 11.

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