Shaded pole motor

Abstract

The invention discloses a shaded pole motor, and relates to the technical field of motors, and the shaded pole motor comprises a stator assembly, a rotor assembly disposed in the stator assembly, and a support assembly covering the rotor assembly. The support assembly comprises a support body, a pressing claw and a pressing disc. The pressing claw and the pressing disc form an elastic piece based on overlapping riveting. An installation part is arranged in the middle of the support body, a wool felt and an installation step structure are arranged in the installation part, the elastic piece is correspondingly embedded between the installation step structure and the wool felt, and the elastic piece and the wool felt are matched to form a limiting space for containing a bearing. The mounting step structure is arranged in the bracket main body and matched with the wool felt to realize the limiting mounting of the elastic piece, so that the bearing mounting area is formed under the matching of the elastic piece and the wool felt, the assembly accuracy of the elastic piece and the bearing is improved, and the connection stability of the internal structure of the shaded pole motor is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a shaded-pole motor. Background Art

[0002] The shaded-pole motor is mainly composed of a rotor assembly, a stator assembly, a bracket assembly and a coil structure. The stator assembly is mainly composed of a short-circuit ring, a large stator and a small stator. The electric field generated by energizing the coil structure cooperates with the stator assembly to form a rotating magnetic field, thereby driving the rotor assembly to rotate to form the working mode of the shaded-pole motor.

[0003] In order to ensure the working stability of the shaded-pole motor, a bracket structure is generally used to encapsulate and protect the rotor assembly, and the setting position of the output shaft of the rotor assembly is limited to ensure the accuracy and reliability of the installation of the output shaft of the shaded-pole motor.

[0004] Since the output shaft of the existing rotor assembly is mainly connected to the bracket through bearings, during the operation of the shaded-pole motor, the bearing is easily subjected to the axial and radial forces of the output shaft of the rotor assembly, which will cause the position of the output shaft of the shaded-pole motor to shift, resulting in vibration when the output shaft of the shaded-pole motor rotates, affecting the working stability of the shaded-pole motor. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art. The present invention provides a shaded pole motor. By arranging an installation step structure in the bracket body and cooperating with wool felt to realize the limited installation of the elastic part, a bearing installation area is formed under the cooperation of the elastic part and the wool felt, thereby improving the accuracy of the assembly of the elastic part and the bearing, and effectively improving the stability of the internal structure connection of the shaded pole motor, thereby ensuring the working reliability and stability of the shaded pole motor.

[0006] The present invention provides a shaded pole motor, comprising: a stator assembly, a rotor assembly disposed in the stator assembly, and a bracket assembly covering the rotor assembly; The bracket assembly includes: a bracket body, a pressure claw and a pressure plate, wherein the pressure claw and the pressure plate are formed into an elastic member based on overlapping riveting; A mounting portion is provided in the middle of the bracket body, and wool felt and a mounting step structure are provided in the mounting portion. The elastic member is correspondingly embedded between the mounting step structure and the wool felt, and the elastic member and the wool felt cooperate to form a limiting space for accommodating the bearing.

[0007] Furthermore, a conical groove with a notch is provided in the middle of the mounting portion, and one end of the bearing is correspondingly embedded in the conical groove.

[0008] Furthermore, a cylindrical groove is provided on the outer side of the conical groove, the wool felt is a cylindrical structure, and the wool felt is correspondingly inserted into the cylindrical groove.

[0009] Furthermore, the support assembly includes an upper support component and a lower support component, the upper support component is arranged at the top end of the rotor assembly, and the lower support component is arranged at the bottom end of the rotor assembly.

[0010] Furthermore, the upper bracket component includes: an upper bracket main body, a plurality of connecting plates extending outward from the upper bracket main body, and any of the connecting plates is provided with a connecting threaded hole.

[0011] Furthermore, the mounting step structure is formed with a step surface in the horizontal direction and a step side wall in the vertical direction; The top of the step side wall is provided with a plurality of limiting points, and the step side wall is folded inwardly at positions corresponding to the plurality of limiting points to form a plurality of limiting baffles, and any of the limiting baffles is parallel to the step surface.

[0012] Furthermore, the shaded-pole motor further comprises a bobbin body provided on the stator assembly, the bobbin body being provided with a coil support, and the coil support being wound with enameled wire to form a coil structure; Baffles are provided on both sides of the coil support, and wire entry slots are provided on the baffles; The slotting depth of the wire entry slot is the same as the height of the winding starting point of the coil support.

[0013] Furthermore, the winding wire of the coil structure is routed toward the coil support through the slotted position of the wire entry slot, and the routing path of the winding wire of the coil structure is arranged in the horizontal direction to form a horizontal straight wire entry path.

[0014] Furthermore, a base is provided at a position of the baffle corresponding to the wire entry groove, and more than one wire entry groove is provided inside the base.

[0015] Furthermore, a plurality of through holes are provided on the baffle corresponding to positions below the base, and the plurality of through holes are arranged in a queue.

[0016] The present invention provides a shaded-pole motor, which provides an installation step structure in a bracket body and cooperates with wool felt to achieve limited installation of an elastic part, thereby forming a bearing installation area under the cooperation of the elastic part and the wool felt, improving the accuracy of assembly of the elastic part and the bearing, and ensuring that the elastic part presses and fixes the wool felt through the elastic part with pre-pressure, and effectively improving the stability of the internal structural connection of the shaded-pole motor, thereby ensuring the working reliability and stability of the shaded-pole motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a schematic structural diagram of a shaded-pole motor according to an embodiment of the present invention; Figure 2 1 is an exploded view of the structure of the shaded-pole motor according to an embodiment of the present invention; Figure 3 is a structural cross-sectional view of a bracket assembly according to an embodiment of the present invention; Figure 4 2 is a schematic structural diagram of the bracket body according to an embodiment of the present invention; Figure 5 2 is a schematic structural diagram of a wire rack body according to an embodiment of the present invention; Figure 6 2 is a cross-sectional view of the structure of the wire rack body in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Figure 1 FIG. 1 shows a schematic structural diagram of a shaded-pole motor according to an embodiment of the present invention. Figure 2 FIG1 shows an exploded view of the structure of the shaded-pole motor according to an embodiment of the present invention. Figure 3 A structural sectional view of the bracket assembly in an embodiment of the present invention is shown, wherein the shaded-pole motor comprises: a stator assembly 1, a rotor assembly 7 arranged in the stator assembly 1, and a bracket assembly 3 covering the rotor assembly 7; the bracket assembly 3 comprises: a bracket body 30, a pressure claw 42 and a pressure plate 41, wherein the pressure claw 42 and the pressure plate 41 form an elastic member 4 based on overlapping riveting, and the pressure claw 42 is configured as a circular disk structure, and the circular disk structure forms a pre-stressed deformation state, so that the pressure claw 42 has a certain pre-stress, so that the pre-stress can meet the installation requirements of the bearing 5 of the shaded-pole motor, thereby ensuring the stability of the structural connection of the shaded-pole motor.

[0020] Furthermore, the pressure claw 42 and the pressure plate 41 form a superimposed structure based on multi-point riveting. By adjusting the size ratio between the pressure claw 42 and the pressure plate 41, and riveting and fixing them based on the riveting position of the pressure plate 41 and the pressure claw 42, the pressure claw 42 and the pressure plate 41 can form relative deformation, so that the pressure claw 42 can achieve pre-compression deformation, that is, the pressure claw 42 has a certain pre-pressure. When the pressure claw 42 and the pressure plate 41 are superimposed to form an elastic part 4, the pressure claw 42 can form an elastic part 4 with pre-pressure based on the riveting fixation of the pressure plate 41. The elastic deformation state of the elastic part 4 matches the frustum structure of the bearing 5, so that the elastic part 4 can meet the pressing limit requirements of the bearing 5.

[0021] Furthermore, the riveting structure of the pressure claw 42 and the pressure plate 41 adopts a multi-point array riveting layout, for example, a three-circle concentric circle layout, with 4 points in the inner circle, 4 points in the middle circle, and 4 points in the outer circle. This layout can effectively disperse the riveting stress and avoid local deformation.

[0022] Furthermore, the pressure claws 42 can be made of precipitation-hardened stainless steel, which undergoes solution treatment and aging treatment at 480°C for 8 hours to achieve a balance of high strength and good elasticity. The pressure plate 41 can be made of glass fiber-reinforced polyetheretherketone, which combines high rigidity with a low coefficient of friction, effectively reducing energy loss during the riveting process.

[0023] Preload is achieved through a synergistic mechanism of geometric interference and elastic deformation. The pressure claw 42 is designed as an arc-shaped structure, creating an initial gap with the flat surface of the pressure plate 41. During riveting, the pressure claw 42 elastically bends under the riveting force, storing elastic strain energy. By adjusting the spacing between the rivet points and the arc height of the pressure claw 42, the preload can be precisely controlled to meet the installation requirements of shaded-pole motors of varying sizes.

[0024] A mounting portion is provided in the middle of the bracket body 30, a wool felt 6 is provided in the mounting portion, a mounting step structure 32 is provided in the mounting portion, the elastic member 4 is correspondingly embedded between the mounting step structure 32 and the top surface of the wool felt 6, and a limiting space for accommodating the bearing 5 is formed between the elastic member 4 and the wool felt 6. The bearing 5 in the bracket assembly 3 is limited based on the limiting space to ensure the accuracy of the installation position of the bearing 5.

[0025] Furthermore, the wool felt 6 is mainly a multifunctional elastic buffer and auxiliary lubrication element. The wool felt 6 can absorb the impact of the axial movement of the rotor, prevent hard impact noise and wear, and at the same time assist in the lubrication of the bearing 5 by storing and releasing lubricating oil, and play a certain role in vibration reduction, noise reduction and tolerance compensation.

[0026] Furthermore, the installation process of the bearing 5 is: the elastic member 4 and the bearing 5 are sequentially sleeved on the output shaft 71 of the rotor assembly 7 of the shaded pole motor, and the matching state of the bearing 5 and the bracket body 30 is adjusted, that is, the concentricity between the bearing 5, the bracket body 30 and the output shaft 71 of the rotor assembly 7 is adjusted, so that the bearing 5, the bracket body 30 and the output shaft 71 of the rotor assembly 7 can maintain a coaxial arrangement.

[0027] By pressing the elastic member 4 onto the bracket body 30, the elastic member 4 is embedded between the wool felt 6 inside the bracket body 30 and the mounting step structure 32, thereby performing axial extrusion and limiting on the bearing 5. Based on the pre-pressure of the elastic member 4, the mounting structure of the bearing 5 has an axial expansion margin, which can meet the axial force requirements of the output shaft 71 when the shaded pole motor is in use, thereby improving the structural stability and reliability of the shaded pole motor.

[0028] Specifically, Figure 4 A schematic diagram of the structure of the bracket body 30 in an embodiment of the present invention is shown. A tapered groove 31 is provided in the middle of the mounting portion, and one end of the bearing 5 is correspondingly engaged within the tapered groove 31. The mounting portion is provided in the middle of the inner side of the bracket body 30. The mounting portion is used to facilitate the installation and coordination of structural components of the shaded-pole motor, such as the pressure claw 42, pressure plate 41, and bearing 5. The conical surface dimensions of the tapered groove 31 are compatible with the conical sidewall structure of the bearing 5 within the shaded-pole motor, allowing the bearing 5 to be correspondingly engaged within the tapered groove 31. The tapered groove 31 also provides preliminary positioning for the bearing 5, improving the accuracy of its installation.

[0029] Furthermore, the bearing 5 is an oil-containing bearing 5 , and the bearing 5 is used to connect the output shaft 71 of the rotor assembly 7 and the bracket body 30 , so that the output shaft 71 of the rotor assembly 7 and the bracket body 30 can rotate relative to each other.

[0030] Specifically, a cylindrical groove 33 is provided on the outside of the conical groove 31. The wool felt 6 is a cylindrical structure, and the wool felt 6 is correspondingly inserted into the cylindrical groove 33. The cylindrical groove 33 and the conical groove 31 are arranged coaxially to improve the coaxiality accuracy of the internal structure matching state of the bracket body 30. The wool felt 6 is inserted into the cylindrical groove 33, and the wool felt 6 is limited and installed based on the cylindrical groove 33 to ensure that the wool felt 6 can be accurately installed in the installation part of the bracket body 30, and the bearing 5 can be located inside the cylindrical structure of the wool felt 6, so that the wool felt 6 is used to limit and protect the bearing 5, and the wool felt 6 is used to buffer the radial vibration of the bearing 5, that is, the flexible structure of the wool felt 6 is used to cover and protect the bearing 5, which can absorb the radial vibration transmitted by the bearing 5 during the operation of the rotor assembly 7, thereby reducing the mechanical vibration and working noise of the shaded pole motor.

[0031] Furthermore, the diameter of the middle area of ​​the bearing 5 is d1, the inner diameter of the cylindrical structure of the wool felt 6 is d2, and the constraint condition between d1 and d2 is: 2mm≤d2-d1≤4mm, that is, the bearing 5 and the wool felt 6 can be clearance-fitted, and the length of the gap is set between 1mm and 2mm, so that there is sufficient gap between the bearing 5 and the wool felt 6 to meet the space requirement for the wool felt 6 to deform when subjected to axial force. When the shaded-pole motor is in working state, the axial force applied to the shaded-pole motor can be transmitted to the wool felt 6 through the elastic member 4, and the wool felt 6 can be deformed based on the axial force, so that the wool felt 6 expands radially and fills the gap between the bearing 5 and the wool felt 6.

[0032] Specifically, the mounting step structure 32 of the bracket body 30 is formed with a step surface in the horizontal direction and a step side wall in the vertical direction. A plurality of limit points are set at the top of the step side wall. The step side wall is folded inward at the positions corresponding to the plurality of limit points to form a plurality of limit baffles 321. Any of the limit baffles 321 is parallel to the step surface. When the elastic member 4 is embedded in the mounting portion of the bracket body 30 based on external force, the top surface of the elastic member 4 is pressed under the plurality of limit baffles 321.

[0033] Furthermore, the mounting step structure 32 is arranged on the outside of the cylindrical groove 33, and the step structure 32 is an annular step structure 32 arranged coaxially with the cylindrical groove 33, so that when the elastic member 4 is embedded in the step structure 32, it can form a structural arrangement with uniform concentricity based on the concentricity between the step structure 32 and the cylindrical groove 33, and the internal structure of the bracket assembly 3 can form a coaxial structural arrangement during the installation process.

[0034] Specifically, the bracket assembly 3 includes an upper bracket component and a lower bracket component. The upper bracket component is arranged at the top end of the rotor assembly 7, and the lower bracket component is arranged at the bottom end of the rotor assembly 7. The upper bracket component and the lower bracket component are used to plastic-encapsulate the rotor assembly 7. The upper bracket component is correspondingly attached to the top end of the stator assembly 1 and the rotor assembly 7, that is, the side where the output shaft 71 of the rotor assembly 7 is located. The upper bracket component completely covers the top end of the rotor assembly 7 to meet the sealing protection of the top end of the rotor assembly 7. The lower bracket component is correspondingly attached to the bottom end of the stator assembly 1 and the rotor assembly 7. Based on the lower bracket component, the bottom end of the rotor assembly 7 can be sealed and protected.

[0035] Specifically, the upper bracket component includes: an upper bracket body 301, and several connecting plates 34 extend outward from the upper bracket body 301. Any of the connecting plates 34 is provided with a connecting threaded hole. In this embodiment, according to the installation application scenario of the shaded pole motor, the upper bracket body 301 is provided with three connecting plates 34. The three connecting plates 34 are evenly distributed around the upper bracket body 301 in the circumferential direction. Based on the three connecting plates 34, the connection requirements between the shaded pole motor and external equipment can be met.

[0036] A slot is provided in the middle of the upper bracket body 301, so that the output shaft 71 of the rotor assembly 7 of the shaded pole motor can extend through the slot to the outside of the upper bracket component, so that the output shaft 71 of the shaded pole motor can be connected to the action mechanism of the external mounting structure, thereby realizing the driving connection of the shaded pole motor to the external action mechanism.

[0037] Furthermore, the upper bracket component also includes a retaining spring 303, which is an annular mechanical fastener installed on the shaft groove, which can limit the axial displacement of the assembled parts, thereby achieving axial fixation. The retaining spring 303 can be used to axially limit the output shaft 71 of the shaded pole motor, thereby reducing the axial movement of the output shaft 71 of the shaded pole motor, thereby improving the working stability and reliability of the shaded pole motor.

[0038] Specifically, the lower bracket component includes: a lower bracket body 302, the lower bracket body 302 is correspondingly fitted on the bottom end of the rotor assembly 7, and a matching groove is provided in the mounting portion of the lower bracket body 302, one end of the output shaft 71 of the rotor assembly 7 is correspondingly inserted in the matching groove, and the matching groove is used for limiting the installation of the output shaft 71 of the rotor assembly 7, and the lower bracket body 302 is set to a closed structure. Based on the lower bracket body 302 being fitted and fixed on the bottom end of the rotor assembly 7, the lower bracket component can seal and protect the rotor assembly 7 to reduce external moisture and dust from entering the rotor assembly 7 of the shaded pole motor.

[0039] Furthermore, a graphite gasket 304 is provided in the mating groove of the lower bracket body 302, and the output shaft 71 of the rotor assembly 7 is connected to the graphite gasket 304. Based on the graphite gasket 304, the wear between the output shaft 71 of the rotor assembly 7 and the lower bracket body 302 can be reduced. The graphite gasket 304 has lubricating properties and can meet the rotation requirements of the output shaft 71 of the rotor assembly 7 in the mating groove, thereby ensuring the working stability of the shaded pole motor.

[0040] Specifically, Figure 5 It shows a schematic structural diagram of the wire rack body 2 in an embodiment of the present invention; Figure 6 A cross-sectional view of the structure of the bobbin body 2 in an embodiment of the present invention is shown. The shaded-pole motor further includes a bobbin body 2 disposed on the stator assembly 1. The bobbin body 2 is provided with a coil support 22. Enameled wire is wound around the coil support 22 to form a coil structure. The bobbin body 2 has an I-shaped cylindrical structure. The stator assembly 1 is formed by stacking a plurality of magnetic steel sheets. The stator assembly 1 includes a large stator 11 and a small stator 12. The small stator 12 is accommodated within the cylindrical structure of the bobbin body 2. The large stator 11 is disposed outside the bobbin body 2 and is provided with a slot for accommodating the rotor assembly 7. The circumferential outer wall of the I-shaped cylindrical structure of the bobbin body 2 is provided with the coil support 22. By winding the enameled wire correspondingly within the coil support 22, the enameled wire is wound within the coil support 22 to form a coil structure. Based on the cooperation between the coil structure and the stator assembly 1, the rotor assembly 7 is electromagnetically driven.

[0041] Specifically, baffles 21 are provided on both sides of the coil support 22. A wire entry slot 23 is formed on the baffles 21. The depth of the wire entry slot 23 is the same as the height of the winding starting point of the coil support 22, that is, the bottom of the wire entry slot 23 is at the same horizontal height as the winding starting point of the enameled wire of the coil support 22. The wire entry slot 23 is used to guide the winding starting end of the enameled wire of the coil structure. That is, the coil structure extends a section of enameled wire outward from the winding starting point, and this section of enameled wire passes through the wire entry slot 23 and enters the baffles 21 on both sides of the coil support 22, forming the electrical connection end of the shaded-pole motor, so as to energize the coil structure of the shaded-pole motor. With the coil structure in the conductive state, in conjunction with the magnetic field of the plurality of magnetic steel sheets of the stator assembly 1, the rotor assembly 7 within the stator assembly 1 can rotate in response to changes in the magnetic field.

[0042] Furthermore, the shaded-pole motor utilizes the interaction between the stator magnetic field and the rotor magnetic field to generate torque and drive the rotor to rotate. The stator magnetic field is typically generated by current flowing into the stator winding, i.e., by supplying an external working circuit to the coil structure, causing the coil structure to be energized. When the coil structure is energized, an induced magnetic field is generated, causing the stator assembly 1 to be within the induced magnetic field, and a rotating magnetic field is formed based on the induced magnetic field. The rotor assembly 7 within the stator assembly 1 generates an induced current within the rotor assembly 7 based on the rotating magnetic field generated by the stator assembly 1. The induced current of the rotor assembly 7 generates torque under the action of the rotating magnetic field, driving the rotor to rotate along the direction of the magnetic field, thereby realizing the rotation operation of the rotor assembly 7.

[0043] Specifically, the winding wire of the coil structure is routed to the coil bracket 22 through the slot position of the wire entry slot 23, and the winding wire routing path of the coil structure is arranged in the horizontal direction to form a horizontal straight wire entry path. The winding starting point of the coil structure and the bottom position of the wire entry slot 23 are at the same horizontal height, so that the enameled wire of the coil structure can pass through the wire entry slot 23 and enter the coil bracket 22.

[0044] Furthermore, the enameled wire of the coil structure of the coil bracket 22 is arranged in a straight line in the horizontal direction, so that the wire segment led out from the winding position of the enameled wire on the coil bracket 22 can be routed with the shortest routing distance, that is, the contact area between the enameled wire and the coil cross-section of the coil structure is reduced, which can effectively reduce the risk of short circuit between the enameled wire routing and the pinholes of the coil structure.

[0045] Specifically, in this embodiment, the enameled wire routing design for the shaded-pole motor coil incorporates a slot depth aligned with the winding starting point of the coil support 22, allowing the enameled wire segment at the winding starting point to be routed in a straight line. Compared to the inclined routing created by the angled design of the enameled wire winding starting point and the wire entry slot 23 in conventional shaded-pole motors, the rectangular frame structure of the straight line entering the base 24 minimizes the routing path between the enameled wire winding starting point and the terminal. This design reduces the contact area between the enameled wire and the coil cross-section, thereby reducing the risk of contact between the enameled wire lead-out wire at the winding starting point and the test pinhole of the coil structure. Specifically, by shortening the routing path of the enameled wire lead-out wire at the winding starting point, the enameled wire routing path avoids the test pinhole of the coil structure, reducing the probability of contact between the two. This effectively reduces the risk of contact between the enameled wire lead-out wire at the winding starting point and the test pinhole of the coil structure, thus effectively improving the safety of the wiring connection structure of the shaded-pole motor coil structure.

[0046] Furthermore, by reducing the enameled wire's lead-out path at the winding origin, the wire is subjected to less mechanical stress during routing, significantly reducing the likelihood of paint peeling or damage. Furthermore, the straight-line routing provides greater rigidity, preventing paint damage caused by insufficient bending radius at turns associated with diagonal wire structures.

[0047] Specifically, a base 24 is provided at the position of the baffle 21 corresponding to the wire entry groove 23, and more than one wire entry groove 23 is provided inside the base 24. The base 24 is a rectangular frame structure, so that the base 24 can accommodate the enameled wire entry structure of the coil structure.

[0048] To meet the specific requirements of shaded-pole motor coil lead wires, the base 24 utilizes a rectangular frame structure to spatially limit the enameled wire lead wires. The base 24 also features a wire management system with two parallel entry slots 23, compatible with parallel winding configurations. The transition area between the slots is chamfered at 45°, and the hard-anodized surface treatment effectively reduces the risk of paint film scratches.

[0049] Furthermore, a silicone cushion can be provided inside the wire entry groove 23, which can absorb 83% of the impact energy under a winding tension of 1.5N, thereby effectively preventing wire breakage.

[0050] Furthermore, the base 24 structure can spatially limit the enameled wire lead-out wire of the coil structure, so that the limiting space of the enameled wire can define the electrical connection state of the electrical connection end of the coil structure of the shaded pole motor, ensuring the convenience and stability of the electrical connection of the coil structure.

[0051] Specifically, a plurality of through holes 25 are provided on the baffle 21 corresponding to the position below the base 24. The plurality of through holes 25 are arranged in a queue. The through holes 25 are used for routing and supporting the power connection wires of the shaded pole motor. The power connection wires of the external power drive circuit pass through the limit of the through holes 25 and extend into the interior of the base 24, so that the power connection wires are electrically connected to the enameled wires inside the base 24.

[0052] Specifically, the through holes 25 provided on the baffle 21 exhibit a highly precise queue arrangement feature. The through holes 25 are distributed in a queue, and the hole spacing is strictly calculated to ensure that the power connection line maintains stable physical support and electrical performance during the routing process. Specifically, the diameter of the through hole 25 is designed to be 2.0mm±0.05mm. This size can accommodate the wire diameters of conventional enameled wires and power cords, and can achieve precise positioning of the wires through tiny gaps. The queue arrangement adopts an equidistant layout, and the center distance between adjacent through holes 25 is 4.0mm, forming a regular grid structure in both the horizontal and vertical directions. This layout can effectively disperse the mechanical stress on the wires and avoid wire damage caused by local stress concentration.

[0053] From a material selection perspective, baffle 21 is made of glass-fiber-reinforced nylon, offering both high strength and insulation properties. Its surface undergoes a hard anodizing treatment, forming an 8μm-thick aluminum oxide film. This not only improves the baffle's wear resistance but also achieves a surface hardness exceeding HV 600, capable of withstanding the friction generated during cable routing. The inner wall of the through-hole is provided with a guide chamfer with a radius of 0.5mm. This design ensures a smooth transition of the power cable as it enters the through-hole, reducing the risk of insulation damage caused by sharp scratches.

[0054] The through-hole structure improves convenience during automated assembly. Its regular alignment closely matches the power cable routing, enabling the six-axis robotic arm to insert and secure the cables with a repeatability of 0.1mm. The guide chamfers on the inner walls of the through-holes match the robotic arm's gripper design, ensuring the cables maintain their correct orientation during insertion. In actual production line applications, this structure reduces power cable assembly time to one-third of traditional processes, increasing assembly efficiency by 200%.

[0055] An embodiment of the present invention provides a shaded pole motor, which provides an installation step structure 32 in the bracket body 30 and cooperates with the wool felt 6 to achieve limited installation of the elastic part 4, so that the elastic part 4 and the wool felt 6 cooperate to form a bearing 5 installation area, thereby improving the accuracy of assembly of the elastic part 4 and the bearing 5. The elastic part 4 with pre-pressure can ensure that the elastic part 4 presses and fixes the wool felt 6, and effectively improves the stability of the internal structure connection of the shaded pole motor, thereby ensuring the working reliability and stability of the shaded pole motor.

[0056] In addition, the above is a detailed introduction to a shaded-pole motor provided in an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A shaded pole motor, characterized in that: The shaded pole motor comprises: a stator assembly, a rotor assembly arranged in the stator assembly, and a bracket assembly covering the rotor assembly; The bracket assembly includes: a bracket body, a pressure claw and a pressure plate, wherein the pressure claw and the pressure plate are formed into an elastic member based on overlapping riveting; A mounting portion is provided in the middle of the bracket body, and wool felt and a mounting step structure are provided in the mounting portion. The elastic member is correspondingly embedded between the mounting step structure and the wool felt, and the elastic member and the wool felt cooperate to form a limiting space for accommodating the bearing.

2. The shaded-pole motor according to claim 1, wherein: A conical groove with a notch is provided at the middle position of the mounting portion, and one end of the bearing is correspondingly embedded in the conical groove.

3. The shaded-pole motor according to claim 2, wherein: A cylindrical groove is provided on the outer side of the conical groove, the wool felt is a cylindrical structure, and the wool felt is correspondingly inserted into the cylindrical groove.

4. The shaded-pole motor according to claim 1, wherein: The support assembly includes an upper support component and a lower support component. The upper support component is arranged at the top end of the rotor assembly, and the lower support component is arranged at the bottom end of the rotor assembly.

5. The shaded-pole motor according to claim 4, wherein: The upper bracket component includes an upper bracket main body, and a plurality of connecting plates are extended outward from the upper bracket main body. Any of the connecting plates is provided with a connecting threaded hole.

6. The shaded-pole motor according to claim 1, wherein: The mounting step structure is formed with a step surface in the horizontal direction and a step side wall in the vertical direction; The top of the step side wall is provided with a plurality of limiting points, and the step side wall is folded inwardly at positions corresponding to the plurality of limiting points to form a plurality of limiting baffles, and any of the limiting baffles is parallel to the step surface.

7. The shaded-pole motor according to claim 1, wherein: The shaded pole motor further comprises a bobbin body provided on the stator assembly, the bobbin body being provided with a coil support, and the coil support being wound with enameled wire to form a coil structure; Baffles are provided on both sides of the coil support, and wire entry slots are provided on the baffles; The slotting depth of the wire entry slot is the same as the height of the winding starting point of the coil support.

8. The shaded-pole motor according to claim 7, wherein: The winding wire of the coil structure is routed toward the coil support through the slotted position of the wire entry slot, and the routing path of the winding wire of the coil structure is arranged in a horizontal direction to form a horizontal straight wire entry path.

9. The shaded-pole motor according to claim 7, wherein: The baffle is provided with a base at a position corresponding to the wire entry groove, and more than one wire entry groove is provided inside the base.

10. The shaded-pole motor according to claim 9, wherein: The baffle is provided with a plurality of through holes corresponding to positions below the base, and the plurality of through holes are arranged in a queue.

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