Motor

Abstract

The utility model discloses a motor, which comprises a coil assembly comprising a contact pin and a motor skeleton, the motor skeleton comprises a first winding part, a first edge-shaped part, a second edge-shaped part, a mounting part and a blocking part, the first winding part is used for winding a winding wire, the first edge-shaped part is arranged at one axial end of the first winding part, and the second edge-shaped part is arranged at the other axial end of the first winding part; the second edge-shaped part is arranged at the other axial end of the first winding part, the mounting part is arranged on the outer periphery of the first edge-shaped part, a first through hole is formed in the mounting part and used for mounting a contact pin, and the blocking part protrudes out of the surface of the side, away from the second edge-shaped part, of the mounting part and is located on the side, close to the axis direction of the first winding part, of the first through hole; at least one part of the gear assembly is located on one side of the blocking part, the contact pin is located on the other side of the blocking part, and the blocking part can prevent metal beads generated during metal treatment of the contact pin from rolling to the gear assembly; and a first cover plate and a second cover plate. The motor has the advantages of being long in service life, not prone to generating abnormal sound and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, and more particularly to an electric machine. BACKGROUND

[0002] The electric machine of the prior art generally comprises a shell, a stator coil assembly, a rotor coil assembly, a pin, a lead wire and the like. When the pin is tin-brazed from the outside, tin beads generated by tin-brazing are prone to rolling inward into the gear box, causing the gear box to be jammed or even stuck, resulting in abnormal noise of the electric machine and affecting the service life of the electric machine. CONTENT OF THE UTILITY MODEL

[0003] One purpose of the present application is to provide an electric machine which can at least solve the technical problem that the tin beads generated by tin-brazing are prone to rolling inward into the gear box in the electric machine of the prior art, causing the gear box to be jammed or even stuck.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions.

[0005] The electric machine according to the embodiments of the present application comprises: a coil assembly, the coil assembly comprising a pin and a machine skeleton, the machine skeleton comprising a first winding portion, a first tamper-like portion, a second tamper-like portion, a mounting portion and a blocking portion, the first winding portion being columnar in shape and being used for winding a winding wire, the first tamper-like portion being arranged at one end of the first winding portion in the axial direction, the second tamper-like portion being arranged at the other end of the first winding portion in the axial direction, the mounting portion being arranged at the outer periphery of the first tamper-like portion, the mounting portion being provided with a first through hole, the first through hole being used for mounting the pin, the blocking portion protruding from the surface of the mounting portion on the side away from the second tamper-like portion and being located on the side of the first through hole in the direction close to the axis of the first winding portion; a gear assembly, at least a part of the gear assembly being located on one side of the blocking portion, the pin being located on the other side of the blocking portion, the blocking portion being capable of blocking metal beads generated during metal processing of the pin from rolling to the gear assembly; a first cover plate, at least a part of the first cover plate being arranged on the side of the mounting portion away from the axis of the first winding portion, the first cover plate being provided with a second through hole, one end of the pin passing through the second through hole and being connected with a lead wire; and a second cover plate, the second cover plate being arranged on the side of the first cover plate away from the mounting portion, the second cover plate being capable of shielding the lead wire and the connection part of the lead wire and the pin.

[0006] Optionally, in the direction parallel to the axis of the first winding portion, the highest end of the pin is higher than the highest end of the blocking portion; and / or, in the direction from the mounting portion to the axis of the first winding portion, the blocking portion is spaced apart from the first through hole to form a gap.

[0007] Optionally, the outer surface of the mounting portion includes a first surface, a second surface, and a third surface. The first surface and the third surface are spaced apart in a direction parallel to the axis of the first winding portion and connected by the second surface. One end of the first through hole is connected to the first surface, and the other end of the first through hole is connected to the third surface. An opening groove spaced apart from the first through hole is provided on the outer side of the mounting portion. The opening groove is connected to the first surface, the second surface, and the third surface, respectively. The opening groove is used for the winding wire to pass through. The included angle between the third surface and the second surface is an obtuse angle.

[0008] Optionally, the outer surface of the mounting portion further includes a fourth surface, which is parallel to the first surface. The third surface is connected to the first blade-shaped portion through the fourth surface, and a portion of the opening groove is disposed on the fourth surface.

[0009] Optionally, in a direction parallel to the axis of the first winding portion, the width of the opening groove at the end away from the second edge-shaped portion is smaller than the width at the end closer to the second edge-shaped portion.

[0010] Optionally, the first cover plate includes: a first connector, a second connector and a third connector, wherein the second connector is disposed on the first connector and cooperates with the first connector to form a first clearance space to avoid the mounting part, the second connector is provided with a second through hole, and the third connector has a plurality of first grooves, the first grooves being used to limit the lead wire.

[0011] Optionally, in a direction perpendicular to the axis of the first winding portion, the two sides of the second connector and the third connector are respectively engaged with the second cover plate.

[0012] Optionally, the inner wall surface of the second cover plate, which is disposed opposite to the first cover plate, is provided with: a plurality of second snap-fit ​​portions, a second groove being formed between two adjacent second snap-fit ​​portions, or a second groove being formed between the second snap-fit ​​portion and the edge of the second cover plate, the second groove being used to install the connection part between the pin and the lead wire; and a plurality of crimping protrusions, the crimping protrusions being used to abut the lead wire after the second cover plate is installed onto the first cover plate.

[0013] Optionally, the mounting portion has a length direction, a thickness direction, and a height direction. The length direction is perpendicular to the axial direction of the first winding portion, the thickness direction is parallel to a radial direction of the first winding portion, and the height direction is parallel to the axial direction of the first winding portion. The number of first through holes is multiple, and the multiple first through holes are spaced apart along the length direction.

[0014] Optionally, the blocking part is a solid part and is flat in shape, with the long side of the blocking part extending along the length direction and the high side of the blocking part extending along the height direction.

[0015] According to the embodiments of this application, the motor adopts a combination of coil assembly, gear assembly, first cover plate and second cover plate. Not only can the blocking part prevent the metal balls generated during the metal processing of the pins from rolling into the gear assembly, it can effectively prevent the gear assembly from being affected by the metal balls, such as causing the motor to jam or stop; it can also improve the aesthetics, structural stability and safety through the first cover plate and second cover plate.

[0016] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a motor according to an embodiment of this application;

[0019] Figure 2 This is a partial structural schematic diagram of a motor according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the assembly of the coil frame, pins, and leads according to an embodiment of this application;

[0021] Figure 4 This is a three-dimensional structural schematic diagram of a coil frame according to an embodiment of this application;

[0022] Figure 5 A front view of a coil frame according to an embodiment of this application;

[0023] Figure 6 This is a three-dimensional structural schematic diagram of a coil frame according to an embodiment of this application from another perspective;

[0024] Figure 7 This is a schematic diagram of the structure of a pin according to an embodiment of this application;

[0025] Figure 8 This is a front view of a first cover plate according to an embodiment of this application;

[0026] Figure 9 This is a three-dimensional structural schematic diagram of a first cover plate at one angle according to an embodiment of this application;

[0027] Figure 10 This is a three-dimensional structural schematic diagram of the first cover plate from another angle according to an embodiment of this application;

[0028] Figure 11 This is an assembly diagram of a first cover plate and a pin according to an embodiment of this application;

[0029] Figure 12 This is a schematic diagram of the assembly of the second cover plate, pins, and leads according to an embodiment of this application;

[0030] Figure 13 This is a perspective structural diagram of a second cover plate at one angle according to an embodiment of this application;

[0031] Figure 14 This is a three-dimensional structural schematic diagram of the second cover plate from another angle according to an embodiment of this application.

[0032] Attached icon number

[0033] Coil frame 100;

[0034] First winding section 10;

[0035] First serration 20;

[0036] Second serration 30;

[0037] Installation section 40;

[0038] First through hole 41; First hole section 411; Second hole section 412;

[0039] First surface 42; Second surface 43; Third surface 44; First arc surface 45; Second arc surface 46; Fourth surface 47; Opening groove 48; Gap 49;

[0040] Blocking part 50; Body 51; First extension part 52; Second extension part 53;

[0041] First cover plate 60; second through hole 61; second clearance space 62; first groove 63;

[0042] Snap-fit ​​protrusion 64; Second side 641; Third side 642;

[0043] First connecting body 65; First connecting part 651; Second connecting part 652;

[0044] Second connector 66; Third connector 67; First clearance space 68; Gap 69;

[0045] Second cover plate 70; snap-fit ​​groove 71; second snap-fit ​​part 72; second groove 73; crimping protrusion 74; protrusion 741; baffle 75; connecting plate 76; limiting protrusion 77; limiting groove 78;

[0046] Insert pin 200; First segment 201; Second segment 202; Third segment 203;

[0047] Second frame 300; second winding part 301; third edge-shaped part 302; fourth edge-shaped part 303; clearance groove 304;

[0048] Lead wire 400;

[0049] Gear assembly 500. Detailed Implementation

[0050] Various exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application.

[0051] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0052] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0053] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0055] The motor according to an embodiment of this application is described in detail below with reference to the accompanying drawings.

[0056] like Figures 1 to 14 As shown, the motor according to an embodiment of this application includes: a coil assembly, a gear assembly 500, a first cover plate 60, and a second cover plate 70.

[0057] Specifically, the coil assembly includes a pin 200 and a motor frame. The motor frame includes a first winding portion 10, a first flange-shaped portion 20, a second flange-shaped portion 30, a mounting portion 40, and a blocking portion 50. The first winding portion 10 is cylindrical in shape and used for winding the winding wire. The first flange-shaped portion 20 is located at one end of the axial direction of the first winding portion 10, and the second flange-shaped portion 30 is located at the other end of the axial direction of the first winding portion 10. The mounting portion 40 is located on the outer periphery of the first flange-shaped portion 20, and the mounting portion 40 has a first through hole 41 for mounting the pin 200. The blocking portion 50 protrudes from the mounting portion 40. On the surface of the mounting portion 40 away from the axis of the first winding portion 10, at least a portion of the gear assembly 500 is located on one side of the blocking portion 50, and the pin 200 is located on the other side of the blocking portion 50. The blocking portion 50 can prevent metal beads generated during metal processing of the pin 200 from rolling into the gear assembly 500. At least a portion of the first cover plate 60 is provided on the side of the mounting portion 40 away from the axis of the first winding portion 10. The first cover plate 60 is provided with a second through hole 61. One end of the pin 200 passes through the second through hole 61 and is connected to the lead wire 400. Figure 1 As shown, the second cover plate 70 is located on the side of the first cover plate 60 away from the mounting part 40, and the second cover plate 70 can cover the lead wire 400 and the connection part between the lead wire 400 and the pin 200.

[0058] In other words, the motor according to the embodiments of this application adopts a combination of coil assembly, gear assembly 500, first cover plate 60 and second cover plate 70. The coil assembly mainly includes a pin 200 and a motor frame. The motor frame mainly includes a first winding part 10, a first blade-shaped part 20, a second blade-shaped part 30, a mounting part 40 and a blocking part 50.

[0059] The first winding portion 10 is cylindrical in shape, for example, it is a cylindrical part extending in the vertical direction. The first winding portion 10 can be used to wind winding wire; that is, the winding wire can be wound around the first winding portion 10. The axis of the first winding portion 10 is... Figure 3 As shown by the dashed line in the image.

[0060] A first flange-like portion 20 is disposed at one end of the axial direction of the first winding portion 10, and a second flange-like portion 30 is disposed at the other end of the axial direction of the first winding portion 10. For example, the first flange-like portion 20 is disposed at the upper end of the first winding portion 10, and the second flange-like portion 30 is disposed at the lower end of the first winding portion 10. A mounting portion 40 is disposed on the outer periphery of the first flange-like portion 20. For example, the mounting portion 40 is disposed at approximately one-quarter of the outer periphery of the first flange-like portion 20. At least one first through hole 41 is provided on the mounting portion 40, that is, a through first through hole 41 is provided. The first through hole 41 can be used to install a pin 200. In other words, the pin 200 can be installed in the first through hole 41, and the winding wire can be connected to the pin 200, etc., during installation. In this embodiment, the shape of the cross-section of the pin 200 is not limited. For example, the cross-section of the pin 200 is square, which can prevent the winding wire from slipping. That is, the pin 200 includes, but is not limited to, a guide. In addition, during installation, the winding wire on the first winding section 10 can be passed through the opening slot 48 first, and then wound around the pin 200.

[0061] Furthermore, the blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second blade-shaped portion 30, and the blocking portion 50 is located on the side of the first through hole 41 in the direction close to the axis of the first winding portion 10. For example, the first blade-shaped portion 20 is located above the second blade-shaped portion 30, and the blocking portion 50 is located on the upper surface of the mounting portion 40.

[0062] And, as Figure 2 As shown, at least a portion of the gear assembly 500 is located on one side of the blocking portion 50. For example, the gear assembly 500 includes a plurality of meshing gears, with at least a portion of the gears located on one side of the blocking portion 50. The pin 200 is located on the other side of the blocking portion 50. The blocking portion 50 prevents metal beads generated during the metal processing of the pin 200 from rolling into the gear assembly 500. For example, during tinning of the pin 200, it prevents solder beads from entering the gear assembly 500, causing jamming or even seizing. In other words, it avoids solder beads generated during the tinning of existing motor terminals from splashing into the gearbox. Furthermore, during assembly, tinning can be performed after winding enameled wire around the pin 200, providing a protective function. Winding an enameled wire connector around the pin 200 and tinning allows the pin 200 and the enameled wire to conduct to each other.

[0063] Furthermore, at least a portion of the first cover plate 60 is located on the side of the mounting portion 40 away from the axis of the first winding portion 10, meaning the first cover plate 60 can cover the outer side of the mounting portion 40. For example, on a projection surface extending vertically and horizontally, the orthographic projection of the first cover plate 60 covers the orthographic projection of the mounting portion 40. It is understood that in this embodiment, the side closer to the axis of the first winding portion 10 is the inner side, and the side away from the axis of the first winding portion 10 is the outer side. The first cover plate 60 has a second through hole 61. One end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400; that is, a portion of the pin 200 extends out of the first through hole 41 and into the second through hole 61, then passes through the second through hole 61 and connects to the lead wire 400. In this embodiment, the first cover plate 60 can shield the mounting portion 40, as well as the protruding pin 200 and winding wire, improving both aesthetics and safety. The second through hole 61 can also limit the position of the pin 200. Furthermore, by providing the second through hole 61 on the first cover plate 60, one end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400. For example, one end of the pin 200 can pass through the second through hole 61 and be welded to the lead wire 400. With the first cover plate 60 shielding the pin 200, metal fragments during welding are less likely to splash into the inside of the gear assembly 500.

[0064] The second cover plate 70 is located on the side of the first cover plate 60 away from the mounting portion 40. In other words, the second cover plate 70 is provided on the outside of the first cover plate 60. For example, on a projection surface extending vertically and horizontally, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In this embodiment, by providing the second cover plate 70, the lead wire 400 and the connection point between the lead wire 400 and the pin 200 can be shielded, improving aesthetics, structural stability, and safety, and preventing the connection point between the lead wire 400 and the pin 200, as well as the lead wire 400 itself, from being affected by the external environment.

[0065] Therefore, the motor according to the embodiment of this application adopts a combination of coil assembly, gear assembly 500, first cover plate 60 and second cover plate 70. Not only can the blocking part 50 block the metal balls generated during the metal processing of the pin 200 from rolling into the gear assembly 500, it can effectively prevent the gear assembly 500 from being affected by the metal balls, such as causing the motor to jam or stop; it can also improve the aesthetics, structural stability and safety through the first cover plate 60 and second cover plate 70.

[0066] According to one embodiment of this application, in a direction parallel to the axis of the first winding portion 10, the highest end of the pin 200 is higher than the highest end of the blocking portion 50. For example, in the vertical direction, the uppermost end of the pin 200 installed in the first through hole 41 is higher than the uppermost end of the blocking portion 50. During installation, a force can be applied to the upper end of the pin 200 from the inside of the mounting portion 40 through the blocking portion 50, driving the upper end of the pin 200 to bend outward. In this embodiment, by restricting the position of the highest end of the pin 200, during installation, a force can be applied to the upper part of the pin 200 installed in the first through hole 41 in a direction from the inside out through the blocking portion 50, driving the upper part of the pin 200 to bend outward.

[0067] In some specific embodiments of this application, such as Figure 3 As shown, in the axial direction from the mounting portion 40 to the first winding portion 10, the blocking portion 50 and the first through hole 41 are spaced apart to form a gap 49. That is, along a direction from the outside to the inside, the first through hole 41, the gap 49 and the blocking portion 50 are arranged sequentially. In this embodiment, by providing the gap 49, during the installation process, force can be applied to the upper part of the pin 200 installed in the first through hole 41 through the gap 49, driving the upper part of the pin 200 to bend outward. For example, the pin 200 in the first through hole 41 extends approximately in the vertical direction, and after the force is applied outward, the pin 200 above the first through hole 41 bends outward relative to the pin 200 in the first through hole 41.

[0068] It should be noted that the highest end of the pin 200 can be higher than the highest end of the blocking part 50 in the direction parallel to the axis of the first winding part 10, or the blocking part 50 and the first through hole 41 can be spaced apart to form a gap 49 in the direction from the mounting part 40 to the first winding part 10. The above conditions can also be met simultaneously. The specific settings can be made according to the product design requirements, and the bending method is diverse.

[0069] In some specific embodiments of this application, the outer surface of the mounting portion 40 includes a first surface 42, a second surface 43, and a third surface 44. The first surface 42 and the third surface 44 are spaced apart in a direction parallel to the axis of the first winding portion 10 and connected by the second surface 43. One end of the first through hole 41 communicates with the first surface 42, and the other end of the first through hole 41 communicates with the third surface 44. Figure 5 As shown, the outer side of the mounting part 40 is provided with an opening groove 48 spaced apart from the first through hole 41. The opening groove 48 connects the first surface 42, the second surface 43 and the third surface 44 respectively. The opening groove 48 is used to pass through the winding wire. The included angle between the third surface 44 and the second surface 43 is an obtuse angle.

[0070] In other words, the outer surface of the mounting part 40 mainly includes a first surface 42, a second surface 43, and a third surface 44. The first surface 42 and the third surface 44 are spaced apart, for example, spaced apart in a direction parallel to the axis of the first winding part 10 and connected by the second surface 43. That is, the first surface 42 and the third surface 44 are connected indirectly, and the second surface 43 is connected to both the first surface 42 and the third surface 44. Moreover, a portion of the first through hole 41 is provided on the first surface 42, and another portion is provided on the third surface 44. That is, one end of the first through hole 41 is connected to the first surface 42, and the other end of the first through hole 41 is connected to the third surface 44.

[0071] Furthermore, the outer side of the mounting portion 40 is provided with an opening slot 48 spaced apart from the first through hole 41. A portion of the opening slot 48 is located on the first surface 42, another portion on the second surface 43, and yet another portion on the third surface 44. That is, the opening slot 48 connects the first surface 42, the second surface 43, and the third surface 44 respectively. In this embodiment, the winding wire on the first winding portion 10 can be connected to a portion of the pin 200 extending out of the first through hole 41 through the opening slot 48. For example, the upper part of the pin 200 extends out of the upper end of the first through hole 41 and is connected to the winding wire. In this embodiment, by providing the opening slot 48, the position of the winding wire can be limited, avoiding interference between the winding wire and other structures, and improving the winding wire efficiency and safety.

[0072] Furthermore, the angle between the third surface 44 and the second surface 43 is an obtuse angle. For example, the second surface 43 extends approximately in the vertical direction, the third surface 44 is located below the first surface 42, and the angle between the third surface 44 and the second surface 43 is an obtuse angle. The third surface 44 is inclined relative to the second surface 43, which can buffer the degree of bending of the winding wire connecting the mounting part 40 and the first winding part 10, and prevent the winding wire from being cut by the outer surface of the mounting part 40.

[0073] According to one embodiment of this application, the outer surface of the mounting portion 40 further includes a fourth surface 47, which is parallel to the first surface 42. The third surface 44 is connected to the first blade-shaped portion 20 through the fourth surface 47, and a portion of the opening groove 48 is provided on the fourth surface 47.

[0074] In other words, in this embodiment, the outer surface of the mounting part 40 mainly includes a first surface 42, a second surface 43, a third surface 44, and a fourth surface 47. The fourth surface 47 is connected to the third surface 44 and the first edge-shaped part 20, respectively, and the third surface 44 is indirectly connected to the first edge-shaped part 20. The first part of the opening groove 48 is provided on the first surface 42, the second part is provided on the second surface 43, the third part is provided on the third surface 44, and the fourth part is provided on the fourth surface 47. That is, the opening groove 48 simultaneously connects the first surface 42, the second surface 43, the third surface 44, and the fourth surface 47.

[0075] In this embodiment, by employing the fourth surface 47, the area required for machining the third surface 44 on the mounting portion 40 can be reduced, facilitating machining. Furthermore, by connecting the opening slot 48 to the fourth surface 47, it is not only easier to machine the opening slot 48 on the outer surface of the mounting portion 40, but also to avoid the wall edge of the opening slot 48 rubbing against the winding wire due to the opening slot 48 being too short.

[0076] In some specific embodiments of this application, in a direction parallel to the axis of the first winding portion 10, the width of the end of the opening slot 48 away from the second flange 30 is smaller than the width of the end closer to the second flange 30. For example, if the axis of the first winding portion 10 is vertical, and the second flange 30 is located below the first flange 20, the width of the upper end of the opening slot 48 is smaller than the width of the lower end of the opening slot 48. The upper section of the opening slot 48 can be a straight slot extending in the vertical direction, and the lower section of the opening slot 48 can be a trumpet-shaped slot extending in the vertical direction, narrower at the top and wider at the bottom. In this embodiment, by defining the shape of the opening slot 48, the protection effect on the winding wire can be improved, preventing the winding wire in the first winding portion 10 and the opening slot 48 from breaking due to friction at the edge of the opening slot 48.

[0077] According to one embodiment of this application, the first cover plate 60 includes: a first connector 65, a second connector 66, and a third connector 67. The second connector 66 is disposed on the first connector 65 and cooperates with the first connector 65 to form a first clearance space 68 to avoid the mounting portion 40. The second connector 66 is provided with a second through hole 61. The third connector 67 is provided with a plurality of first grooves 63, which are used to limit the lead wire 400. For example, the extending direction of the first groove 63 is parallel to the axial direction of the first winding portion 10.

[0078] In other words, the first cover plate 60 in this embodiment mainly consists of a first connector 65, a second connector 66, and a third connector 67. The second connector 66 is connected to the first connector 65, and the second connector 66 and the first connector 65 cooperate to form a first clearance space 68. The first clearance space 68 can avoid the mounting part 40, meaning that after the first cover plate 60 is installed, the mounting part 40 can extend into the first clearance space 68. That is, in the inward and outward directions, the second connector 66 and the first connector 65 are at least partially offset to form a space for the pin 200 to extend outward. Here, "inward" refers to the axial direction of the first winding part 10, and "outward" refers to the side where the second cover plate 70 is located.

[0079] The second connector 66 has a second through hole 61. One end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400. The third connector 67 has a plurality of first slots 63, for example, each first slot 63 extends in a direction parallel to the axis of the first winding portion 10. At least a portion of the lead wire 400 can be installed in the first slot 63, thereby achieving a limiting effect on the lead wire 400.

[0080] In some specific embodiments of this application, the second connector 66 and the third connector 67 are respectively engaged with the second cover plate 70 on both sides in a direction perpendicular to the axis of the first winding portion 10. For example, the left side of the second connector 66 is engaged with the left side of the second cover plate 70, and the right side of the second connector 66 is also engaged with the right side of the second cover plate 70. Similarly, the left side of the third connector 67 is engaged with the left side of the second cover plate 70, and the right side of the third connector 67 is also engaged with the right side of the second cover plate 70, thus achieving engagement at four positions. Optionally, the engagement structures on both sides of the second connector 66 are corresponding, and the engagement structures on both sides of the third connector 67 are symmetrical, with the four engagement positions forming a rectangle. This can improve the stability of the connection, expand the range of the connection area, and facilitate processing and manufacturing with a symmetrical design.

[0081] Understandably, by employing the second connector 66, it not only avoids the pin 200 in the inward and outward directions, providing space for the extension of the pin 200, but also provides a connection position and structure for a convenient connection between the first cover plate 60 and the second cover plate 70. Similarly, the third connector 67 serves both to limit the lead wire 400 and to provide a connection position and structure for a convenient connection between the first cover plate 60 and the second cover plate 70.

[0082] In this embodiment, by limiting the direction perpendicular to the axis of the first winding portion 10, the two sides of the second connector 66 and the third connector 67 are respectively snapped into the second cover plate 70, thereby improving the bonding firmness. During assembly, by limiting the shape of the snap-fit ​​structure, the second cover plate 70 can be placed over the outside of the first cover plate 60 along a direction parallel to the axis of the first winding portion 10, or the second cover plate 70 can be separated from the first cover plate 60 along a direction parallel to the axis of the first winding portion 10, which is convenient for use and operation. In addition, by adopting the snap-fit ​​method, installation and disassembly are convenient. By snapping the two sides separately, overall stability is also improved.

[0083] According to one embodiment of this application, the inner wall surface of the second cover plate 70, which is disposed opposite to the first cover plate 60, is provided with: a plurality of second snap-fit ​​portions 72 and a plurality of pressing protrusions 74.

[0084] Specifically, a second groove 73 is formed between two adjacent second snap-fit ​​portions 72, or a second groove 73 is formed between the second snap-fit ​​portion 72 and the edge of the second cover plate 70. The second groove 73 is used to install the connection part between the pin 200 and the lead wire 400, and the crimping protrusion 74 is used to abut the lead wire 400 after the second cover plate 70 is installed onto the first cover plate 60.

[0085] That is, the second cover plate 70 is disposed on the outer side of at least a portion of the first cover plate 60, and the inner side of the second cover plate 70 is provided with a second snap-fit ​​portion 72 and a pressing protrusion 74. There are multiple second snap-fit ​​portions 72, and a second groove 73 is formed between adjacent second snap-fit ​​portions 72. Alternatively, a second groove 73 is formed between the edges of the second snap-fit ​​portions 72 and the second cover plate 70. For example, multiple second snap-fit ​​portions 72 are spaced apart in the left-right direction, with a second groove 73 between the leftmost second snap-fit ​​portion 72 and the left edge of the second cover plate 70, and a second groove 73 between the rearmost second snap-fit ​​portion 72 and the right edge of the second cover plate 70. In this embodiment, by providing the second groove 73, the connection portion between the pin 200 and the lead wire 400 can be installed into the second groove 73, thereby limiting the connection portion. Furthermore, after the second cover plate 70 is installed onto the first cover plate 60, the pressing protrusion 74 can abut against the lead wire 400, limiting the lead wire 400. By installing the second cover plate 70 onto the first cover plate 60, a force can be applied to the lead wire 400, such that at least a portion of the lead wire 400 is clamped between the crimping protrusion 74 and the first cover plate 60.

[0086] In some specific embodiments of this application, the mounting portion 40 has a length direction, a thickness direction and a height direction. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axial direction of the first winding portion 10. The number of first through holes 41 is multiple, and the multiple first through holes 41 are spaced apart along the length direction.

[0087] In other words, the long side of the mounting portion 40 extends along its own length direction, the thick side extends along its own thickness direction, and the high side extends along its own height direction. The length direction is perpendicular to the axis of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axis of the first winding portion 10. For example, the height direction is the Z-axis direction, the thickness direction is the X-axis direction, and the length direction is the Y-axis direction.

[0088] Furthermore, when there are multiple first through holes 41, these holes 41 can be spaced apart along the length direction, for example, spaced apart along the left and right direction. This facilitates the simultaneous installation of multiple pins 200 and allows for simultaneous bending operations on the multiple pins 200. Each first through hole 41 can correspond to one pin 200, increasing the total number of pins 200. Moreover, by spaced apart the multiple first through holes 41 along the length direction, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting portion 40, which is conducive to the subsequent installation of the first cover plate 60 and the second cover plate 70. Additionally, when there are multiple pins 200, the mounting portion 40 can be made of plastic, or the inner wall of the first through holes 41 can be coated with insulating material to achieve insulation between adjacent pins 200 and prevent short circuits.

[0089] According to one embodiment of this application, the blocking part 50 is a solid part and is flat in shape. The long side of the blocking part 50 extends along the length direction, and the high side of the blocking part 50 extends along the height direction. That is, the blocking part 50 is a solid flat plate structure, and the multiple first through holes 41 are spaced apart along the length direction. By using the blocking part 50, not only can the range of blocking metal beads be expanded, but it can also block metal beads generated during the metal processing of multiple pins 200 at the same time. At the same time, the solid flat plate structure is convenient for processing and production.

[0090] Optionally, the motor also includes a housing, inside which a coil frame 100, etc., is provided.

[0091] The coil frame 100 of this application will be described in detail below with reference to specific embodiments.

[0092] The coil frame 100 according to an embodiment of this application includes: a first winding portion 10, a first blade-shaped portion 20, a second blade-shaped portion 30, a mounting portion 40, and a blocking portion 50.

[0093] Specifically, the first winding portion 10 is cylindrical in shape and is used to wind the winding wire. The first blade-shaped portion 20 is located at one end of the axial direction of the first winding portion 10, and the second blade-shaped portion 30 is located at the other end of the axial direction of the first winding portion 10. The mounting portion 40 is located on the outer periphery of the first blade-shaped portion 20. The mounting portion 40 is provided with a first through hole 41 for mounting the pin 200. The blocking portion 50 protrudes from the surface of the mounting portion 40 away from the second blade-shaped portion 30 and is located on the side of the first through hole 41 close to the axis of the first winding portion 10. The blocking portion 50 can prevent the metal beads generated during the metal processing of the pin 200 from rolling toward the axis of the first winding portion 10.

[0094] In other words, the coil frame 100 according to the embodiments of this application mainly includes a first winding portion 10, a first blade-shaped portion 20, a second blade-shaped portion 30, a mounting portion 40, and a blocking portion 50.

[0095] The first winding portion 10 is cylindrical in shape, for example, the first winding portion 10 is a cylindrical part extending in the vertical direction. The first winding portion 10 is used to wind the winding wire, that is, the winding wire can be wound around the first winding portion 10.

[0096] A first flange-like portion 20 is provided at one end of the axial direction of the first winding portion 10, and a second flange-like portion 30 is provided at the other end of the axial direction of the first winding portion 10. For example, the first flange-like portion 20 is provided at the upper end of the first winding portion 10, and the second flange-like portion 30 is provided at the lower end of the first winding portion 10. A mounting portion 40 is provided on the outer periphery of the first flange-like portion 20. For example, the mounting portion 40 is provided at approximately one-quarter of the outer periphery of the first flange-like portion 20. At least one first through hole 41 is provided on the mounting portion 40, that is, a through first through hole 41 is provided. The first through hole 41 can be used to install the pin 200. In other words, the pin 200 can be installed in the first through hole 41, and the winding wire can be connected to the pin 200, etc., during installation. In this embodiment, the shape of the cross-section of the pin 200 is not limited. For example, the cross-section of the pin 200 is square, which can prevent the winding wire from slipping.

[0097] Furthermore, the blocking portion 50 protrudes from the surface of the mounting portion 40 away from the side of the second blade-shaped portion 30, and the blocking portion 50 is located on the side of the first through hole 41 near the axis of the first winding portion 10. For example, the first blade-shaped portion 20 is located above the second blade-shaped portion 30, and the blocking portion 50 is located on the upper surface of the mounting portion 40. When the coil bobbin 100 of this application is applied to a motor, the motor includes a gear assembly 500, at least a portion of which is located on one side of the blocking portion 50. For example, the gear assembly 500 includes a plurality of meshing gears, and at least a portion of the gears are located on one side of the blocking portion 50. The pin 200 is located on the other side of the blocking portion 50. The blocking portion 50 can prevent metal beads generated during the metal processing of the pin 200 from rolling into the gear assembly 500. For example, when tinning the pin 200, it can prevent solder beads after soldering from entering the interior of the gear assembly 500, causing the gear assembly 500 to jam or even seize, thus avoiding abnormal noise.

[0098] Therefore, according to the embodiment of this application, the coil frame 100 can use the blocking part 50 to block the metal balls generated during the metal processing of the pin 200 from rolling into the gear assembly 500, which can effectively prevent the gear assembly 500 from being affected by the metal balls, such as motor jamming, seizing, or abnormal noise caused by tinning.

[0099] According to one embodiment of this application, the mounting portion 40 has a length direction, a thickness direction, and a height direction. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axial direction of the first winding portion 10. That is, the long side of the mounting portion 40 extends along its own length direction, the thick side extends along its own thickness direction, and the high side extends along its own height direction. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axial direction of the first winding portion 10. For example, the height direction is the Z-axis direction, the thickness direction is the X-axis direction, and the length direction is the Y-axis direction.

[0100] In this embodiment, by defining the mounting part 40 as having a length direction, a thickness direction, and a height direction, it is convenient to process and manufacture the mounting part 40, and it is also convenient to set the first through hole 41. For example, multiple first through holes 41 are spaced apart along the length direction, and the pin 200 is installed in each first through hole 41. It is also beneficial to realize the setting of rows of pins 200.

[0101] In some specific embodiments of this application, the blocking part 50 is a solid structural component, which can expand the range of blocking metal beads and facilitate processing and production.

[0102] According to one embodiment of this application, the blocking part 50 is flat, which not only facilitates processing and production, but also improves the appearance and expands the range of blocking metal beads.

[0103] It should be noted that the blocking part 50 can be a solid structural component on its own, or the blocking part 50 can be a flat plate on its own, or both of the above conditions can be met simultaneously. The specific settings can be made according to the product design requirements.

[0104] According to one embodiment of this application, there are multiple first through holes 41, each corresponding to one pin 200, thereby increasing the total number of pins 200. The multiple first through holes 41 are spaced apart along the length of the mounting portion 40; for example, if the length of the mounting portion 40 is in the left-right direction, the multiple first through holes 41 are spaced apart along this direction. The edge of the blocking portion 50 extends beyond the outermost first through hole 41; for example, in the left-right direction, the left edge of the blocking portion 50 extends beyond the leftmost first through hole 41, and the right edge extends beyond the rightmost first through hole 41, thus expanding the shielding range. Protection against metallization of multiple pins 200 is achieved through a single blocking portion 50.

[0105] In some specific embodiments of this application, the length of the blocking part 50 is not less than the length of the mounting part 40 in the longitudinal direction, that is, the length of the blocking part 50 is greater than or equal to the length of the mounting part 40, which can further enhance the protective effect. For example, in the left-right direction, the length of the blocking part 50 is equal to the length of the mounting part 40; or, for another example, in the left-right direction, the length of the blocking part 50 is greater than the length of the mounting part 40.

[0106] According to one embodiment of this application, the blocking part 50 and the mounting part 40 are integrally molded parts, for example, they can be prepared and produced by integral injection molding.

[0107] In some specific embodiments of this application, the first blade-shaped part 20, the blocking part 50 and the mounting part 40 are integrally molded parts, which can be prepared and produced by integral injection molding, and are easy to process.

[0108] According to one embodiment of this application, the first blade-shaped part 20, the first winding part 10, the blocking part 50 and the mounting part 40 are integrally molded parts, which can be prepared and produced by integral injection molding, and are easy to process.

[0109] This application also provides a coil assembly, including: a pin 200 and a motor frame, wherein the motor frame includes the coil frame 100 of any of the above embodiments, and the pin 200 is installed in the first through hole 41 of the coil frame 100. Since the coil assembly of this application embodiment includes the coil frame 100 of any of the above embodiments, and the coil frame 100 has a protective effect, the coil assembly of this application embodiment has the same effect, and will not be described in detail here.

[0110] According to one embodiment of this application, the motor frame includes a first frame and a second frame 300, wherein the first frame is a coil frame 100, and the second frame 300 is connected to the first frame. For example, the first frame is located above the second frame 300; the first frame can be defined as the upper frame, and the second frame 300 as the lower frame. The first frame is the coil frame 100 of any of the above embodiments. Optionally, the first frame and the second frame 300 can be coaxially arranged.

[0111] The bending process of the pin 200 in this application embodiment will be described in detail below with reference to specific embodiments.

[0112] An assembly method for a coil assembly according to an embodiment of this application includes the following steps:

[0113] Install the pin 200 into the first through hole 41, such as Figure 7 As shown, the insert 200 includes a first segment 201, a second segment 202, and a third segment 203. The first segment 201 extends out of the first through hole 41 and is located on the same side of the mounting portion 40 as the blocking portion 50. The second segment 202 is located inside the first through hole 41. The third segment 203 extends out of the first through hole 41 and extends toward the side closer to the second blade-shaped portion 30. In a direction parallel to the axis of the first winding portion 10, the highest end of the first segment 201 is higher than the highest end of the blocking portion 50.

[0114] A force is applied to the first section 201 along the axis from the blocking part 50 away from the first winding part 10, driving the first section 201 to bend.

[0115] In other words, in the direction parallel to the axis of the first winding portion 10, the highest point of the pin 200 is higher than the highest point of the blocking portion 50. For example, in the vertical direction, the uppermost point of the pin 200 installed in the first through hole 41 is higher than the uppermost point of the blocking portion 50. During installation, a force can be applied to the upper end of the pin 200 from the inside of the mounting portion 40 through the blocking portion 50, driving the upper end of the pin 200 to bend outward. In this embodiment, by restricting the position of the highest point of the pin 200, during installation, a force can be applied to the upper part of the pin 200 installed in the first through hole 41 in a direction from the inside out through the blocking portion 50, driving the upper part of the pin 200 to bend outward.

[0116] According to one embodiment of this application, there are multiple first through holes 41 and pins 200, each corresponding to the other. Force is simultaneously applied to multiple first segments 201 along the axis from the blocking portion 50 away from the first winding portion 10. By providing multiple first through holes 41, it is convenient to simultaneously install multiple pins 200 and to simultaneously perform operations such as bending on multiple pins 200. Each first through hole 41 can correspond to one pin 200, increasing the total number of pins 200. Furthermore, by distributing the multiple first through holes 41 at intervals along the extending direction of the mounting portion 40, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting portion 40, which is beneficial for subsequent installation of the first cover plate 60 and the second cover plate 70.

[0117] This application also provides a method for assembling a coil assembly, wherein in the axial direction from the mounting portion 40 to the first winding portion 10, the blocking portion 50 and the first through hole 41 are spaced apart to form a gap 49, and the blocking portion 50 can prevent the metal beads generated during the metal processing of the pin 200 from rolling toward the axial direction of the first winding portion 10.

[0118] The assembly method includes the following steps:

[0119] The pin 200 is installed in the first through hole 41. The pin 200 includes a first segment 201, a second segment 202 and a third segment 203. The first segment 201 extends out of the first through hole 41 and is located on the same side of the mounting part 40 as the blocking part 50. The second segment 202 is located in the first through hole 41. The third segment 203 extends out of the first through hole 41 and extends toward one side of the second blade-shaped part 30.

[0120] A force is applied to the first segment 201 from the gap 49, away from the blocking part 50, driving the first segment 201 to bend.

[0121] In other words, in the axial direction from the mounting portion 40 to the first winding portion 10, the blocking portion 50 and the first through hole 41 are spaced apart to form a gap 49. That is, along a direction from the outside to the inside, the first through hole 41, the gap 49 and the blocking portion 50 are arranged sequentially. In this embodiment, by providing the gap 49, during the installation process, force can be applied to the upper part of the pin 200 installed in the first through hole 41 through the gap 49, driving the upper part of the pin 200 to bend outward. For example, the pin 200 in the first through hole 41 extends approximately in the vertical direction, and after the force is applied outward, the pin 200 above the first through hole 41 bends outward relative to the pin 200 in the first through hole 41.

[0122] It should be noted that the highest end of the pin 200 can be higher than the highest end of the blocking part 50 in the direction parallel to the axis of the first winding part 10, or the blocking part 50 and the first through hole 41 can be spaced apart to form a gap 49 in the direction from the mounting part 40 to the first winding part 10. The above conditions can also be met simultaneously. The specific settings can be made according to the product design requirements, and the bending method is diverse.

[0123] According to one embodiment of this application, there are multiple first through holes 41 and pins 200, each corresponding to the other. A force is applied to the multiple first segments 201 from the gap 49, moving away from the blocking part 50, causing the multiple first segments 201 to bend simultaneously. By providing multiple first through holes 41, it is convenient to install multiple pins 200 simultaneously and to perform bending operations on the multiple pins 200 simultaneously. Each first through hole 41 can correspond to one pin 200, which can increase the total number of pins 200. In addition, by distributing the multiple first through holes 41 at intervals along the extension direction of the mounting part 40, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting part 40, which is beneficial for the subsequent installation of the first cover plate 60 and the second cover plate 70.

[0124] In addition, when there are multiple pins 200, the mounting part 40 can be made of plastic, or the inner wall of the first through hole 41 can be coated with insulating material to achieve insulation between two adjacent pins 200 and prevent short circuits.

[0125] In some specific embodiments of this application, the gap 49 is open on the side away from the mounting portion 40 in a direction parallel to the axis of the first winding portion 10. For example, the height direction of the gap 49 is vertical, and the top of the gap 49 is open, so that a force-applying tool can be inserted from above.

[0126] According to one embodiment of this application, the blocking portion 50 extends in a direction perpendicular to the axis of the first winding portion 10, and at least one side of the gap 49 is open in the extending direction of the blocking portion 50. For example, the length direction of the gap 49 is left-right, and the left and right sides of the gap 49 are open, allowing a force-applying tool to be inserted through the open position.

[0127] It should be noted that the gap 49 can be opened on the side away from the mounting part 40 in the direction parallel to the axis of the first winding part 10, or at least one side of the gap 49 can be opened in the extension direction of the blocking part 50, or both of the above conditions can be met at the same time, so the bending method of the pin 200 is diverse and flexible.

[0128] In some specific embodiments of this application, the blocking part 50 is a solid structural component, which can expand the range of blocking metal beads and facilitate processing and production.

[0129] In some specific embodiments of this application, the motor frame further includes a second frame 300, which includes a second winding portion 301, a third flange-shaped portion 302, and a fourth flange-shaped portion 303. The second winding portion 301 is cylindrical in shape and used for winding the winding wire. The third flange-shaped portion 302 is located at one end of the axial direction of the second winding portion 301, and the fourth flange-shaped portion 303 is located at the other end of the axial direction of the second winding portion 301. The third flange-shaped portion 302 is connected to the second flange-shaped portion 301, and as shown... Figure 6 As shown, a clearance groove 304 is provided at the connection point between the two to avoid the third segment 203, thus preventing interference with the bending of the pin 200 and the lead wire 400. In addition, it can also avoid the inner wall of the first cover plate 60, making it easier to install the first cover plate 60.

[0130] The mounting section 40 according to an embodiment of this application will now be described in detail.

[0131] The mounting part 40 is located on the outer periphery of the first blade-shaped part 20. The mounting part 40 is provided with a first through hole 41 for mounting the pin 200. The outer surface of the mounting part 40 includes a first surface 42, a second surface 43 and a third surface 44. The first surface 42 and the third surface 44 are spaced apart and connected by the second surface 43. One end of the first through hole 41 is connected to the first surface 42 and the other end of the first through hole 41 is connected to the third surface 44. The outer side of the mounting part 40 is provided with an opening groove 48 spaced apart from the first through hole 41. The opening groove 48 is connected to the first surface 42, the second surface 43 and the third surface 44 respectively. The opening groove 48 is used for passing the winding wire. The included angle between the third surface 44 and the second surface 43 is an obtuse angle.

[0132] In other words, the mounting portion 40 is located on the outer periphery of the first blade-shaped portion 20. For example, the mounting portion 40 is located at approximately one-quarter of the outer periphery of the first blade-shaped portion 20. At least one first through hole 41 is provided on the mounting portion 40, that is, a through first through hole 41 is provided. This first through hole 41 can be used to mount the pin 200; that is, the pin 200 can be mounted in the first through hole 41, and the winding wire can be connected to the pin 200 during installation. In this embodiment, the shape of the cross-section of the pin 200 is not limited. For example, the cross-section of the pin 200 can be square to prevent the winding wire from slipping.

[0133] The outer surface of the mounting portion 40 mainly includes a first surface 42, a second surface 43, and a third surface 44. The first surface 42 and the third surface 44 are spaced apart, for example, spaced apart in a direction parallel to the axis of the first winding portion 10 and connected by the second surface 43. That is, the first surface 42 and the third surface 44 are connected indirectly, and the second surface 43 is connected to both the first surface 42 and the third surface 44. Moreover, a portion of the first through hole 41 is provided on the first surface 42, and another portion is provided on the third surface 44. That is, one end of the first through hole 41 is connected to the first surface 42, and the other end of the first through hole 41 is connected to the third surface 44.

[0134] The mounting portion 40 has an opening slot 48 spaced apart from the first through hole 41 on its outer side. A portion of the opening slot 48 is located on the first surface 42, another portion on the second surface 43, and yet another portion on the third surface 44. That is, the opening slot 48 connects the first surface 42, the second surface 43, and the third surface 44 respectively. In this embodiment, the winding wire on the first winding portion 10 can be connected to a portion of the pin 200 extending out of the first through hole 41 through the opening slot 48. For example, the upper part of the pin 200 extends out of the upper end of the first through hole 41 and is connected to the winding wire. In this embodiment, by providing the opening slot 48, the position of the winding wire can be limited, preventing interference between the winding wire and other structures, thus improving the winding wire efficiency and safety.

[0135] The angle between the third surface 44 and the second surface 43 is an obtuse angle. For example, the second surface 43 extends approximately in the vertical direction, the third surface 44 is located below the first surface 42, and the angle between the third surface 44 and the second surface 43 is an obtuse angle. The third surface 44 is inclined relative to the second surface 43, which can buffer the degree of bending of the winding wire connecting the mounting part 40 and the first winding part 10, and prevent the winding wire from being cut by the outer surface of the mounting part 40.

[0136] According to one embodiment of this application, the first surface 42 and the second surface 43 are transitionally connected by a first arc surface 45; and / or, the second surface 43 and the third surface 44 are transitionally connected by a second arc surface 46. By employing a transitional connection, the winding wire can be further protected, allowing for a smoother winding path and facilitating the entry and locking of the winding wire within the opening slot 48. Furthermore, the transitional connection between the first surface 42 and the second surface 43 via the first arc surface 45 facilitates the application of force from the gap between the blocking portion 50 and the pin 200, or through the blocking portion 50, to the pin 200, driving it to bend; and it also facilitates winding the pin 200, reducing winding obstruction.

[0137] In some specific embodiments of this application, the second surface 43 is closer to the second edge-shaped portion 30 relative to the first surface 42. For example, the first edge-shaped portion 20 is located above the second edge-shaped portion 30, and the first surface 42 is located above the second surface 43. In the vertical direction, the second surface 43 is closer to the second edge-shaped portion 30 relative to the first surface 42. In this embodiment, by adopting the second surface 43 being closer to the second edge-shaped portion 30 relative to the first surface 42, it is convenient for the winding wire to enter the opening slot 48 with a shorter distance after being wound by the first winding portion 10.

[0138] According to one embodiment of this application, the first through hole 41 includes: a first hole segment 411 and a second hole segment 412.

[0139] Specifically, one end of the first hole segment 411 connects to the first surface 42, the first end of the second hole segment 412 connects to the other end of the first hole segment 411, the second end of the second hole segment 412 connects to the second surface 43, and the third end of the second hole segment 412 connects to the third surface 44. For example, the first through hole 41 includes a first hole segment 411 and a second hole segment 412 distributed vertically. The upper end of the first hole segment 411 connects to the first surface 42, the upper end of the second hole segment 412 connects to the lower end of the first hole segment 411, and the lower end of the second hole segment 412 connects to both the second surface 43 and the third surface 44. In this embodiment, since the second hole segment 412 connects to both the second surface 43 and the third surface 44, one end of the pin 200 can extend through the first hole segment 411, and the other end of the pin 200 can be bent outward toward the side where the second surface 43 is located, and can also maintain a certain distance from the third surface 44 to avoid contact with the winding wire passing through the third surface 44.

[0140] In some specific embodiments of this application, the coil frame 100 further includes a blocking portion 50, which protrudes from the first surface 42 and is located on the side of the first through hole 41 near the axis of the first winding portion 10. The blocking portion 50 is capable of preventing metal beads generated during the metal processing of the insert pin 200 from rolling toward the axis of the first winding portion 10. That is, the blocking portion 50 protrudes from the surface of the mounting portion 40 away from the second blade-shaped portion 30 and is located on the side of the first through hole 41 near the axis of the first winding portion 10.

[0141] The blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second blade-shaped portion 30, and the blocking portion 50 is located on the side of the first through hole 41 in the direction close to the axis of the first winding portion 10. For example, the first blade-shaped portion 20 is located above the second blade-shaped portion 30, and the blocking portion 50 is located on the upper surface of the mounting portion 40.

[0142] Furthermore, at least a portion of the gear assembly 500 is located on one side of the blocking portion 50. For example, the gear assembly 500 includes a plurality of meshing gears, with at least a portion of the gears located on one side of the blocking portion 50. The pin 200 is located on the other side of the blocking portion 50. The blocking portion 50 can prevent metal beads generated during the metal processing of the pin 200 from rolling into the gear assembly 500. For example, when tinning the pin 200, it can prevent solder beads after soldering from entering the interior of the gear assembly 500, causing jamming or even seizing.

[0143] According to one embodiment of this application, the mounting portion 40 has a length direction, a thickness direction and a height direction. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axial direction of the first winding portion 10. The first surface 42 and the third surface 44 are spaced apart in the height direction, and the second surface 43 is located on one side of the mounting portion 40 in the thickness direction.

[0144] In other words, the long side of the mounting portion 40 extends along its own length direction, the thick side extends along its own thickness direction, and the high side extends along its own height direction. The length direction is perpendicular to the axis of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axis of the first winding portion 10. For example, the height direction is the Z-axis direction, the thickness direction is the X-axis direction, and the length direction is the Y-axis direction.

[0145] Optionally, there can be multiple first through holes 41, which are spaced apart along the length direction, for example, spaced apart along the left and right direction. This facilitates the simultaneous installation of multiple pins 200 and allows for simultaneous bending or other operations on the multiple pins 200. Each first through hole 41 can correspond to one pin 200, increasing the total number of pins 200. Furthermore, by spaced apart the multiple first through holes 41 along the length direction, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting part 40, which is beneficial for the subsequent installation of the first cover plate 60 and the second cover plate 70. In addition, when there are multiple pins 200, the mounting part 40 can be made of plastic, or the inner wall of the first through holes 41 can be coated with insulating material to achieve insulation between adjacent pins 200 and prevent short circuits.

[0146] In some specific embodiments of this application, the outer surface of the mounting part 40 further includes a fourth surface 47, which is parallel to the first surface 42. The third surface 44 is connected to the first blade-shaped part 20 through the fourth surface 47, and a portion of the opening groove 48 communicates with the fourth surface 47.

[0147] In other words, in this embodiment, the outer surface of the mounting portion 40 mainly includes a first surface 42, a second surface 43, a third surface 44, and a fourth surface 47. The fourth surface 47 is connected to both the third surface 44 and the first flange-shaped portion 20, and the third surface 44 is indirectly connected to the first flange-shaped portion 20. The first portion of the opening groove 48 is located on the first surface 42, the second portion on the second surface 43, the third portion on the third surface 44, and the fourth portion on the fourth surface 47. That is, the opening groove 48 simultaneously connects the first surface 42, the second surface 43, the third surface 44, and the fourth surface 47. Furthermore, the fourth surface 47 is parallel to the first surface 42, facilitating machining.

[0148] In this embodiment, by employing the fourth surface 47, the area required for machining the third surface 44 on the mounting portion 40 can be reduced, facilitating machining. Furthermore, by connecting the opening slot 48 to the fourth surface 47, it is not only easier to machine the opening slot 48 on the outer surface of the mounting portion 40, but also to avoid the wall edge of the opening slot 48 rubbing against the winding wire due to the opening slot 48 being too short.

[0149] According to one embodiment of this application, in the thickness direction, the end of the opening slot 48 on the third surface 44 is close to the central axis of the first winding portion 10 relative to the first through hole 41 on the third surface 44. For example, the opening slot 48 on the third surface 44 extends inward, and the minimum distance between the inner wall of the opening slot 48 on the third surface 44 and the central axis of the first winding portion 10 is L1, and the minimum distance between the inner wall of the first through hole 41 adjacent to the opening slot 48 and the central axis of the first winding portion 10 is L2, where L1 < L2. In this embodiment, in the thickness direction, the end of the opening slot 48 on the third surface 44 is close to the central axis of the first winding portion 10 relative to the first through hole 41 on the third surface 44, which is beneficial for protecting the winding wire and preventing the winding wire from contacting the pin 200 passing through the first through hole 41 on the third surface 44.

[0150] In some specific embodiments of this application, in the thickness direction, the first through hole 41 on the first surface 42 is closer to the central axis of the first winding portion 10 relative to the opening slot 48 on the first surface 42. For example, the opening slot 48 on the first surface 42 extends inward, the minimum distance between the inner wall of the opening slot 48 on the first surface 42 and the central axis of the first winding portion 10 is L3, and the minimum distance between the inner wall of the first through hole 41 on the first surface 42 adjacent to the opening slot 48 and the central axis of the first winding portion 10 is L4, where L4 < L3, so that the pin 200 extending from the first through hole 41 on the first surface 42 can be connected to the winding wire.

[0151] According to one embodiment of this application, in the height direction, the width of the end of the opening slot 48 away from the second flange 30 is smaller than the width of the end near the second flange 30. For example, if the axis of the first winding portion 10 is vertical, and the second flange 30 is located below the first flange 20, the width of the upper end of the opening slot 48 is smaller than the width of the lower end of the opening slot 48. The upper section of the opening slot 48 can be a straight slot segment extending vertically, and the lower section of the opening slot 48 can be a trumpet-shaped slot segment that is narrower at the top and wider at the bottom, extending vertically. In this embodiment, by defining the shape of the opening slot 48, the protection effect on the winding wire can be improved, preventing the winding wire in the first winding portion 10 and the opening slot 48 from breaking due to friction at the edge of the opening slot 48. In addition, it is also beneficial to lock the winding wire within the opening slot 48.

[0152] The first cover plate 60 of this application will be described in detail below with reference to specific embodiments.

[0153] The mounting portion 40 is located on the outer periphery of the first blade-shaped portion 20. The mounting portion 40 has a length direction, a thickness direction, and a height direction. The length direction is perpendicular to the axis of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axis of the first winding portion 10. The outer surface of the mounting portion 40 includes a first surface 42, a second surface 43, and a third surface 44. The first surface 42 and the third surface 44 are spaced apart in the height direction and connected by the second surface 43. The second surface 43 is located on one side of the mounting portion 40 in the thickness direction. The mounting portion 40 has a plurality of first through holes 41 for mounting pins 200. The plurality of first through holes 41 are spaced apart along the length direction. At least a portion of the first cover plate 60 is located on the mounting portion 40. The mounting part 40 is located on the side away from the axis of the first winding part 10. The first cover plate 60 has a first clearance space 68 to avoid the mounting part 40. The first cover plate 60 includes: a first connector 65, a second connector 66 and a third connector 67. The second connector 66 is disposed on the first connector 65 and cooperates with the first connector 65 to form the first clearance space 68. The second connector 66 is provided with a second through hole 61. One end of the pin 200 passes through the second through hole 61 and is connected to the lead wire 400. The third connector 67 is provided with a plurality of first grooves 63. The first grooves 63 are used to limit the lead wire 400. The second cover plate 70 is disposed on the side of the first cover plate 60 away from the axis of the first winding part 10. The second cover plate 70 can cover the lead wire 400 and the connection part between the lead wire 400 and the pin 200.

[0154] In the longitudinal direction, the second connector 66 and the third connector 67 are respectively engaged with the second cover plate 70 on both sides.

[0155] In other words, the long side of the mounting portion 40 extends along its own length direction, the thick side extends along its own thickness direction, and the high side extends along its own height direction. The length direction is perpendicular to the axis of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axis of the first winding portion 10. For example, the height direction is the Z-axis direction, the thickness direction is the X-axis direction, and the length direction is the Y-axis direction.

[0156] The outer surface of the mounting portion 40 mainly includes a first surface 42, a second surface 43, and a third surface 44. The first surface 42 and the third surface 44 are spaced apart in the height direction, that is, spaced apart in the direction parallel to the axis of the first winding portion 10 and connected by the second surface 43. In other words, the first surface 42 and the third surface 44 are connected indirectly. The second surface 43 is connected to both the first surface 42 and the third surface 44, and the second surface 43 is located on one side of the mounting portion 40 in the thickness direction. Moreover, a portion of the first through hole 41 is provided on the first surface 42, and another portion is provided on the third surface 44. That is, one end of the first through hole 41 is connected to the first surface 42, and the other end of the first through hole 41 is connected to the third surface 44.

[0157] The mounting section 40 is provided with multiple first through holes 41, meaning there are multiple first through holes 41. These first through holes 41 are spaced apart along the length direction, for example, spaced apart along the left-right direction. This facilitates the simultaneous installation of multiple pins 200 and allows for simultaneous bending or other operations on the multiple pins 200. Each first through hole 41 can correspond to one pin 200, increasing the total number of pins 200. Furthermore, by spaced the multiple first through holes 41 along the length direction, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting section 40, which is conducive to the subsequent installation of the first cover plate 60 and the second cover plate 70. Additionally, when there are multiple pins 200, the mounting section 40 can be made of plastic, or the inner walls of the first through holes 41 can be coated with insulating material to achieve insulation between adjacent pins 200 and prevent short circuits.

[0158] At least a portion of the first cover plate 60 is disposed on the side of the mounting portion 40 away from the axis of the first winding portion 10, that is, the first cover plate 60 can cover the outer side of the mounting portion 40. For example, on a projection surface extending vertically and horizontally, the orthographic projection of the first cover plate 60 covers the orthographic projection of the mounting portion 40. It can be understood that, in this embodiment, the side closer to the axis of the first winding portion 10 is the inner side, and the side away from the axis of the first winding portion 10 is the outer side. The first cover plate 60 is provided with a second through hole 61. One end of the pin 200 passes through the second through hole 61 and is connected to the lead wire 400. That is, a portion of the pin 200 extends out of the first through hole 41 and then into the second through hole 61, and then passes through the second through hole 61 and is connected to the lead wire 400. In this embodiment, the first cover plate 60 can shield the mounting portion 40, as well as the protruding pin 200 and winding wire, improving both aesthetics and safety. The second through hole 61 can also limit the position of the pin 200. Furthermore, by providing the second through hole 61 on the first cover plate 60, one end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400. For example, one end of the pin 200 can pass through the second through hole 61 and be welded to the lead wire 400. With the first cover plate 60 shielding the pin 200, metal fragments during welding are less likely to splash into the inside of the gear assembly 500.

[0159] In addition, the first cover plate 60 in this embodiment is mainly composed of a first connector 65, a second connector 66 and a third connector 67. The second connector 66 is connected to the first connector 65, and the second connector 66 and the first connector 65 cooperate to form a first clearance space 68. The first clearance space 68 can avoid the mounting part 40, that is, after the first cover plate 60 is installed, the mounting part 40 can extend into the first clearance space 68.

[0160] The second connector 66 has a second through hole 61. One end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400. The third connector 67 has a plurality of first slots 63, for example, each first slot 63 extends in a direction parallel to the axis of the first winding portion 10. At least a portion of the lead wire 400 can be installed in the first slot 63, thereby achieving a limiting effect on the lead wire 400.

[0161] The second cover plate 70 is located on the side of the first cover plate 60 away from the axis of the first winding portion 10, that is, the second cover plate 70 is located on the side of the first cover plate 60 away from the mounting portion 40. In other words, the second cover plate 70 is provided on the outside of the first cover plate 60. For example, on a projection surface extending vertically and horizontally, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In this embodiment, by providing the second cover plate 70, the lead wire 400 and the connection part between the lead wire 400 and the pin 200 can be shielded, which can improve aesthetics, structural stability and safety, and prevent the connection part between the lead wire 400 and the pin 200 and the lead wire 400 from being affected by the external environment.

[0162] Furthermore, along the length direction, the two sides of the second connector 66 and the third connector 67 respectively engage with the second cover plate 70. For example, the left side of the second connector 66 engages with the left side of the second cover plate 70, and the right side of the second connector 66 also engages with the right side of the second cover plate 70. Similarly, the left side of the third connector 67 engages with the left side of the second cover plate 70, and the right side of the third connector 67 also engages with the right side of the second cover plate 70, achieving engagement at four positions. Optionally, the engagement structures on both sides of the second connector 66 correspond, and the engagement structures on both sides of the third connector 67 are symmetrical, with the four engagement positions forming a rectangle. This improves the stability of the connection, expands the range of the connection area, and the symmetrical design facilitates manufacturing.

[0163] According to one embodiment of this application, in the length direction, the second connecting body 66 and the third connecting body 67 are respectively provided with snap-fit ​​protrusions 64 on both sides, and the second cover plate 70 is provided with snap-fit ​​grooves 71 at positions corresponding to the snap-fit ​​protrusions 64. For example, in the left-right direction, the second connecting body 66 is provided with snap-fit ​​protrusions 64 on the left and right sides, and the second cover plate 70 is also provided with snap-fit ​​grooves 71 on the left and right sides. The snap-fit ​​protrusions 64 and snap-fit ​​grooves 71 can be detachably connected, realizing the installation and disassembly between the second cover plate 70 and the first cover plate 60. In this embodiment, by using the snap-fit ​​protrusions 64 and snap-fit ​​grooves 71 in cooperation, operation is convenient, and installation and disassembly are easy.

[0164] In some specific embodiments of this application, in the length direction, the second connector 66 and the third connector 67 are respectively provided with snap-fit ​​grooves 71 on both sides, and the second cover plate 70 is provided with snap-fit ​​protrusions 64 at positions corresponding to the snap-fit ​​grooves 71. For example, the second connector 66 is provided with snap-fit ​​grooves 71 on both the left and right sides, and the second cover plate 70 is provided with snap-fit ​​protrusions 64 on both the left and right sides, which facilitates installation and disassembly.

[0165] According to one embodiment of this application, in the length direction, one of the second connecting body 66 and the third connecting body 67 is provided with a locking groove 71 on both sides, and the other is provided with a locking protrusion 64 on both sides. The second cover plate 70 is provided with a locking protrusion 64 at a position corresponding to the locking groove 71, and a locking groove 71 at a position corresponding to the locking protrusion 64. For example, the second connecting body 66 is provided with locking grooves 71 on both sides, and the third connecting body 67 is provided with locking protrusions 64 on both sides; or, for another example, the second connecting body 66 is provided with locking protrusions 64 on both sides, and the third connecting body 67 is provided with locking grooves 71 on both sides, facilitating operation.

[0166] As can be seen from the above combination methods, the snap-fit ​​method between the second cover plate 70 and the first cover plate 60 is diverse.

[0167] In some specific embodiments of this application, the number of snap-fit ​​protrusions 64 and snap-fit ​​grooves 71 are multiple and correspond one-to-one. In the height direction, the multiple snap-fit ​​protrusions 64 are spaced apart. For example, there are a total of four snap-fit ​​protrusions 64, with two snap-fit ​​protrusions 64 close to the top forming one group, and two snap-fit ​​protrusions 64 close to the bottom forming another group. In this embodiment, by limiting the multiple snap-fit ​​protrusions 64 to be spaced apart, limiting the movement at different positions can be achieved, improving structural stability.

[0168] According to one embodiment of this application, such as Figures 8 to 10 As shown, along the radial direction of the first winding portion 10, the cross-sectional shape of the snap-fit ​​protrusion 64 is triangular. The outer surface of the snap-fit ​​protrusion 64 includes a first side surface, a second side surface 641, and a third side surface 642. The first side surface is connected to the side surface of the second connector 66 or the third connector 67. The second side surface 641 is spaced apart from the first connector 65. The third side surface 642 is connected to both the first side surface and the second side surface 641. The included angle between the third side surface 642 and the second side surface 641 is an acute angle. In this embodiment, by defining the shape of the snap-fit ​​protrusion 64, the second cover plate 70 can be slidably installed along the axial direction parallel to the first winding portion 10. Furthermore, the snap-fit ​​protrusion 64 with the above-described shape can limit the circumferential positioning of the second cover plate 70.

[0169] In some specific embodiments of this application, the second connector 66 and the third connector 67 are spaced apart in the height direction. For example, the second connector 66 is located above the third connector 67 and is spaced apart. In this embodiment, the space formed by the spacing can avoid the connection part between the lead 400 and the pin 200, which facilitates the interconnection and connection operation between the lead 400 and the pin 200.

[0170] In the vertical direction, multiple first through holes 41 and multiple first slots 63 correspond one-to-one. For example, at least a portion of the first through hole 41 is located above a first slot 63. After a pin 200 extends into the first through hole 41, its lower end extends out of the first through hole 41. At least a portion of the lead wire 400 can be installed in the first slot 63, and one lead wire 400 corresponds to and is connected to one pin 200. In this embodiment, by adopting a one-to-one correspondence between multiple first through holes 41 and multiple first slots 63, the structural orderliness can be improved.

[0171] It should be noted that the second connector 66 and the third connector 67 can be spaced apart in the height direction, or multiple first through holes 41 and multiple first grooves 63 can be one-to-one in the height direction, or the above conditions can be met simultaneously. The specific design can be customized according to product requirements, which is highly flexible.

[0172] According to one embodiment of this application, the coil frame 100 further includes a blocking portion 50, which protrudes from the surface of the mounting portion 40 away from the second blade-shaped portion 30 and is located on the side of the first through hole 41 in the direction close to the axis of the first winding portion 10. The blocking portion 50 is capable of preventing metal beads generated during the metal processing of the pin 200 from rolling toward the axis of the first winding portion 10. The blocking portion 50 is detachably connected to the first cover plate 60.

[0173] In some specific embodiments of this application, such as Figure 4 As shown, the blocking part 50 includes: a body 51, a first extension 52, and a second extension 53.

[0174] Specifically, the body 51 is located on the side of the first cover plate 60 near the axis of the first winding portion 10, and can prevent metal beads generated during the metal processing of the pin 200 from rolling toward the axis of the first winding portion 10. For example, the axis of the first winding portion 10 is provided on the inner side of the body 51, and the first through hole 41 is provided on the outer side of the body 51. After the pin 200 is installed, the body 51 is located between the axis of the first winding portion 10 and at least a portion of the pin 200. During the metal processing of the pin 200, such as during tinning, the solder beads are blocked by the body 51 and will not move toward the gear assembly 500 near the axis of the first winding portion 10.

[0175] In the length direction, one end of the first extension 52 is connected to the end of the main body 51, and the other end of the first extension 52 is connected to the second extension 53. For example, in the left-right direction, the direction closer to the axis of the first winding portion 10 is the rear end, and the direction farther from the axis of the first winding portion 10 is the front end. The front end of the first extension 52 is connected to the right end of the main body 51, and the rear end of the first extension 52 is connected to the left end of the second extension 53. For another example, the front end of the first extension 52 is connected to the left end of the main body 51, and the rear end of the first extension 52 is connected to the right end of the second extension 53. In this embodiment, the second extension 53, the first extension 52, and the first winding portion 10 can cooperate to form a "U"-shaped component with the opening facing the axis of the first winding portion 10. The first connecting body 65 has a second clearance space 62, and the second extension 53 is located in the second clearance space 62, which can improve the tightness of the connection, improve the protective effect, and also improve the structural compactness. The second extension 53 is detachably connected to the first cover plate 60. The detachable connection methods here include, but are not limited to, snap-fit, threaded connection, and bolt connection. In this embodiment, by using the second extension 53, the second cover plate 70 can be limited in the direction parallel to the axis of the first winding portion 10.

[0176] According to one embodiment of this application, the first flange-like portion 20 overlaps with the first connector 65 in a direction parallel to the axis of the first winding portion 10. For example, if the axis of the first winding portion 10 is vertical, the lower end of the first connector 65 contacts the first flange-like portion 20. In this embodiment, it not only provides a sealing effect but also supports the first connector 65.

[0177] The second cover plate 70 of this application will be described in detail below with reference to specific embodiments.

[0178] The second cover plate 70 is located on the side of the first cover plate 60 away from the axis of the first winding portion 10 and is detachably connected to the first cover plate 60. The detachable connection method here includes, but is not limited to, snap-fit, threaded connection, bolt connection, etc.

[0179] The inner wall surface of the second cover plate 70, which is disposed opposite to the first cover plate 60, is provided with a plurality of second snap-fit ​​portions 72 and a plurality of crimping protrusions 74. A second groove 73 is formed between two adjacent second snap-fit ​​portions 72, or a second groove 73 is formed between the second snap-fit ​​portion 72 and the edge of the second cover plate 70. The second groove 73 is used to install the connection part between the pin 200 and the lead wire 400. The crimping protrusions 74 are used to abut against the lead wire 400 after the second cover plate 70 is installed onto the first cover plate 60.

[0180] In other words, the second cover plate 70 is located on the side of the first cover plate 60 away from the mounting portion 40. That is, the second cover plate 70 is provided on the outside of the first cover plate 60. For example, on a projection surface extending vertically and horizontally, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In this embodiment, by providing the second cover plate 70, the lead wire 400 and the connection portion between the lead wire 400 and the pin 200 can be shielded, which can improve aesthetics, structural stability, and safety, and prevent the connection portion between the lead wire 400 and the pin 200, as well as the lead wire 400, from being affected by the external environment.

[0181] The second cover plate 70 is detachably connected to the first cover plate 60. The detachable connection methods include, but are not limited to, snap-fit, threaded connection, and bolt connection.

[0182] In addition, the inner wall surface of the second cover plate 70, which is disposed opposite to the first cover plate 60, is provided with a plurality of second snap-fit ​​portions 72 and a plurality of crimping protrusions 74. A second groove 73 is formed between two adjacent second snap-fit ​​portions 72, or a second groove 73 is formed between the second snap-fit ​​portion 72 and the edge of the second cover plate 70. The second groove 73 is used to install the connection part between the pin 200 and the lead wire 400. The crimping protrusions 74 are used to abut the lead wire after the second cover plate 70 is installed onto the first cover plate 60.

[0183] That is, the second cover plate 70 is disposed on the outer side of at least a portion of the first cover plate 60, and the inner side of the second cover plate 70 is provided with a second snap-fit ​​portion 72 and a pressing protrusion 74. There are multiple second snap-fit ​​portions 72, and a second groove 73 is formed between adjacent second snap-fit ​​portions 72. Alternatively, a second groove 73 is formed between the edges of the second snap-fit ​​portions 72 and the second cover plate 70. For example, multiple second snap-fit ​​portions 72 are spaced apart in the left-right direction, with a second groove 73 between the leftmost second snap-fit ​​portion 72 and the left edge of the second cover plate 70, and a second groove 73 between the rearmost second snap-fit ​​portion 72 and the right edge of the second cover plate 70. In this embodiment, by providing the second groove 73, the connection portion between the pin 200 and the lead wire 400 can be installed into the second groove 73, thereby limiting the connection portion. Furthermore, after the second cover plate 70 is installed onto the first cover plate 60, the pressing protrusion 74 can abut against the lead wire 400, limiting the lead wire 400. By installing the second cover plate 70 onto the first cover plate 60, a force can be applied to the lead wire 400, such that at least a portion of the lead wire 400 is clamped between the crimping protrusion 74 and the first cover plate 60.

[0184] According to one embodiment of this application, the mounting portion 40 has a length direction, a thickness direction and a height direction. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axial direction of the first winding portion 10. A plurality of first through holes 41 are spaced apart along the length direction.

[0185] In other words, the long side of the mounting portion 40 extends along its own length direction, the thick side extends along its own thickness direction, and the high side extends along its own height direction. The length direction is perpendicular to the axis of the first winding portion 10, the thickness direction is parallel to a radial direction of the first winding portion 10, and the height direction is parallel to the axis of the first winding portion 10. For example, the height direction is the Z-axis direction, the thickness direction is the X-axis direction, and the length direction is the Y-axis direction.

[0186] In some specific embodiments of this application, such as Figure 14 As shown, the second cover plate 70 includes a baffle 75 and a connecting plate 76. The baffle 75 is located on the side of the first cover plate 60 away from the mounting portion 40, as shown. Figure 12 As shown, the inner wall of the baffle 75 is provided with a second snap-fit ​​portion 72 and a pressing protrusion 74. Connecting plates 76 are located on both sides of the baffle 75 along its length. The connecting plates 76 and the baffle 75 cooperate to form a "door"-like shape. For example, the baffle 75 extends vertically, and at least a portion of the first cover plate 60 is located inside the baffle 75. The inner wall of the baffle 75 is provided with the second snap-fit ​​portion 72 and the pressing protrusion 74. Connecting plates 76 are respectively provided on the left and right sides of the baffle 75. The baffle 75 and the two connecting plates 76 cooperate to form a "door"-like structure with the opening facing inwards. Furthermore, the connecting plates 76 and the first cover plate 60 are detachably connected. The detachable connection methods include, but are not limited to, snap-fit, threaded connection, and bolt connection. In this embodiment, by providing the second snap-fit ​​portion 72 and the pressing protrusion 74 on the inner wall of the baffle 75, not only is processing easier, but it also facilitates limiting the lead wire 400, etc. By defining the connection plate 76 and the baffle 75 to form a "door" shape, it is convenient to assemble the second cover plate 70 and the first cover plate 60.

[0187] According to one embodiment of this application, the second cover plate 70 further includes a plurality of limiting protrusions 77, which are disposed at one end of the baffle 75 in a direction parallel to the axis of the first winding portion 10, for example, at the lower end of the baffle 75. A limiting groove 78 is formed between adjacent limiting protrusions 77. In a direction parallel to the axis of the first winding portion 10, the limiting groove 78, the crimping protrusion 74, and the second groove 73 are positioned correspondingly. The lead wire 400 crimped by the crimping protrusion 74 can pass through the limiting groove 78. In this embodiment, by using the limiting groove 78, it is not only convenient for the lead wire 400 to pass through, but also the lead wire 400 can be limited. At the same time, the limiting protrusions 77 can also protect the interior of the second cover plate 70.

[0188] In some specific embodiments of this application, along the thickness direction of the baffle 75, such as along the front-back direction, the thickness of the limiting protrusion 77 and the thickness of the second snap-fit ​​portion 72 are both greater than the thickness of the pressing protrusion 74. This can prevent the lead wire 400 from being subjected to excessive force during the pressing process, and also prevent the thickness of the second cover plate 70 from being too high due to the need to accommodate the lead wire 400.

[0189] According to one embodiment of this application, the depth of the limiting groove 78 is less than the depth of the second groove 73, which can limit the lead wire 400 while making it difficult to pull the lead wire 400 outward from the second groove 73.

[0190] In some specific embodiments of this application, the first cover plate 60 includes: a first connector 65, a second connector 66, and a third connector 67.

[0191] Specifically, such as Figure 11 As shown, the second connector 66 is disposed on the first connector 65 and cooperates with the first connector 65 to form a first clearance space 68. The second connector 66 is provided with a second through hole 61, and the third connector 67 has a plurality of first grooves 63, which are used to limit the lead wire 400. For example, the extending direction of the first groove 63 is parallel to the axial direction of the first winding portion 10.

[0192] The baffle 75 is simultaneously disposed opposite to the second connector 66 and the third connector 67 in a direction perpendicular to the axis of the first winding part 10, and the connecting plate 76 is respectively engaged with the second connector 66 and the third connector 67.

[0193] In other words, the first cover plate 60 in this embodiment mainly consists of a first connector 65, a second connector 66 and a third connector 67. The second connector 66 is connected to the first connector 65, and the second connector 66 and the first connector 65 cooperate to form a first clearance space 68. The first clearance space 68 can avoid the mounting part 40, that is, after the first cover plate 60 is installed, the mounting part 40 can extend into the first clearance space 68.

[0194] The second connector 66 has a second through hole 61. One end of the pin 200 passes through the second through hole 61 and connects to the lead wire 400. The third connector 67 has a plurality of first slots 63, for example, each first slot 63 extends in a direction parallel to the axis of the first winding portion 10. At least a portion of the lead wire 400 can be installed in the first slot 63, thereby achieving a limiting effect on the lead wire 400.

[0195] Furthermore, when the axial direction of the first winding portion 10 is vertical, the second connector 66 and the third connector 67 can be spaced apart along the downward direction. Simultaneously, a baffle 75 can be positioned opposite the second connector 66 and the third connector 67 in an outward direction, thus providing protection for the second connector 66, the third connector 67, and the lead wire 400, etc.

[0196] In addition, the connecting plate 76 is snapped into the second connecting body 66 and the third connecting body 67 respectively, which facilitates installation and disassembly.

[0197] According to one embodiment of this application, the first connector 65 includes: a first connector 651 and a second connector 652.

[0198] Specifically, the first connecting portion 651 is installed on the side of the mounting portion 40 away from the first winding portion 10. The first connecting portion 651 extends in a direction parallel to the axis of the first winding portion 10, for example, the first connecting portion 651 extends in a vertical direction and is located on the outside of the mounting portion 40. The second connecting body 66 and the third connecting body 67 are installed on the first connecting portion 651. The second connecting portion 652 is installed at one end of the first connecting portion 651 in a direction parallel to the axis of the first winding portion 10, for example, the second connecting portion 652 is located at the upper end of the first connecting portion 651. The second connecting portion 652 and the first connecting portion 651 can cooperate to form a first clearance space 68, and at least a portion of the mounting portion 40 and the pin 200 can be installed in the first clearance space 68. A portion of the second connecting portion 652 protrudes from the outer surface of the first connecting portion 651, for example, the outer side of the second connecting portion 652 protrudes from the outer surface of the first connecting portion 651. A portion of the second connector 66 is connected to the second connector 652. The two ends of the second connector 66 are spaced apart from the second connector 652 in a direction parallel to the axis of the first winding portion 10, forming a gap 69. For example, the upper left side of the second connector 66 is spaced apart from the lower surface of the second connector 652, and the upper right side of the second connector 66 is spaced apart from the lower surface of the second connector 652. One end of the connecting plate 76 in a direction parallel to the axis of the first winding portion 10 is inserted into the gap 69. For example, a portion of the upper end of the connecting plate 76 can be inserted into the gap 69, which not only improves the protective effect but also increases the restriction on the freedom of movement of the second cover plate 72. Optionally, in a direction parallel to the axis of the first winding portion 10, a portion of the second connector 652 is located on one side of the mounting portion 40. For example, the second connector 652 is located above the first surface 42, and the second connector 652 and the first surface 42 are spaced apart, which can be used to avoid bending of the pin 200. Optionally, in the direction close to the axis of the first winding portion 10, the edge of the second connecting portion 652 has an arc-shaped groove, such as... Figure 9As shown, for example, the inner edge of the second connecting portion 652 has an arc-shaped groove, which can avoid the gear assembly 500, etc. Furthermore, the second connecting portion 652 and the blocking portion 50 cooperate to form a space, which can provide avoidance, containment, and protection for the pin 200 within the space. Optionally, in the direction parallel to the axis of the first winding portion 10, one end of the second extension portion 53 is higher than the blocking portion 50; for example, the upper end of the second extension portion 53 is higher than the upper edge of the blocking portion 50, which facilitates applying force to the pin 200 through the space above the blocking portion 50. Optionally, when the second extension portion 53 is connected to the first connecting body 65, a portion of the second connecting portion 652 can overlap the second extension portion 53, improving structural stability, connection tightness, and convenience. After the second connecting portion 652 and the second extension portion 53 overlap, there is a space between the second connecting portion 652 and the blocking portion 50, which can avoid the mounting portion 40 and the bent pin 200.

[0199] In some specific embodiments of this application, in the direction parallel to the axis of the first winding portion 10, the other end of the connecting plate 76 is located outside the second connector 66, for example, a portion of the lower end of the connecting plate 76 is located outside the second connector 66, which can further improve the protective effect.

[0200] According to one embodiment of this application, such as Figure 13 As shown, the crimping protrusion 74 has a plurality of spaced-apart protrusions 741. For example, the crimping protrusion 74 extends in the vertical direction, and the surface of the crimping protrusion 74 includes a plurality of spaced-apart protrusions 741 in the vertical direction. In this embodiment, by employing a plurality of protrusions 741, the installation stability of the lead 400 can be improved.

[0201] Furthermore, the extending direction of the crimping protrusion 74 is parallel to the axial direction of the first winding portion 10, and the plurality of protrusions 741 are spaced apart along the extending direction of the crimping protrusion 74, which can improve the stability of the lead wire 400 in the direction parallel to the axial direction of the first winding portion 10. Optionally, the axial direction of the lead wire 400 can be parallel to the axial direction of the first winding portion 10, and by using the protrusions 741, movement of the lead wire 400 in its own axial direction can be prevented.

[0202] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. An electric motor, characterized in that, include: A coil assembly, comprising a pin (200) and a motor frame, the motor frame comprising a first winding portion (10), a first serrated portion (20), a second serrated portion (30), a mounting portion (40), and a blocking portion (50), the first winding portion (10) being cylindrical in shape and used for winding the winding wire, the first serrated portion (20) being located at one end of the axial direction of the first winding portion (10), the second serrated portion (30) being located at the other end of the axial direction of the first winding portion (10), the mounting portion (40) being located at the outer periphery of the first serrated portion (20), the mounting portion (40) being provided with a first through hole (41), the first through hole (41) being used for mounting the pin (200), the blocking portion (50) protruding from the surface of the mounting portion (40) away from the second serrated portion (30) and located on the side of the first through hole (41) close to the axis of the first winding portion (10); A gear assembly (500), at least a portion of which is located on one side of a blocking portion (50), and the pin (200) is located on the other side of the blocking portion (50). The blocking portion (50) can prevent metal balls generated during metal processing of the pin (200) from rolling into the gear assembly (500). A first cover plate (60) is provided, at least a portion of which is located on the side of the mounting portion (40) away from the axis of the first winding portion (10). A second through hole (61) is provided on the first cover plate (60), and one end of the pin (200) passes through the second through hole (61) and is connected to the lead wire (400). The second cover plate (70) is located on the side of the first cover plate (60) away from the mounting part (40). The second cover plate (70) can cover the lead wire (400) and the connection part between the lead wire (400) and the pin (200).

2. The motor according to claim 1, characterized in that, In a direction parallel to the axis of the first winding portion (10), the highest end of the insert (200) is higher than the highest end of the blocking portion (50); and / or, In the axial direction from the mounting portion (40) to the first winding portion (10), the blocking portion (50) and the first through hole (41) are spaced apart to form a gap (49).

3. The motor according to claim 1, characterized in that, The outer surface of the mounting part (40) includes a first surface (42), a second surface (43) and a third surface (44). The first surface (42) and the third surface (44) are spaced apart in a direction parallel to the axis of the first winding part (10) and connected by the second surface (43). One end of the first through hole (41) is connected to the first surface (42), and the other end of the first through hole (41) is connected to the third surface (44). The outer side of the mounting part (40) is provided with an opening groove (48) spaced apart from the first through hole (41). The opening groove (48) is connected to the first surface (42), the second surface (43) and the third surface (44) respectively. The opening groove (48) is used for the winding wire to pass through. The included angle between the third surface (44) and the second surface (43) is an obtuse angle.

4. The motor according to claim 3, characterized in that, The outer surface of the mounting part (40) also includes a fourth surface (47), which is parallel to the first surface (42). The third surface (44) is connected to the first blade-shaped part (20) through the fourth surface (47), and a portion of the opening groove (48) is provided on the fourth surface (47).

5. The motor according to claim 4, characterized in that, In a direction parallel to the axis of the first winding portion (10), the width of the end of the opening groove (48) away from the second edge portion (30) is smaller than the width of the end near the second edge portion (30).

6. The motor according to claim 1, characterized in that, The first cover plate (60) includes: a first connector (65), a second connector (66) and a third connector (67). The second connector (66) is disposed on the first connector (65) and cooperates with the first connector (65) to form a first clearance space (68) to avoid the mounting part (40). The second connector (66) is provided with a second through hole (61). The third connector (67) has a plurality of first grooves (63). The first grooves (63) are used to limit the lead wire (400).

7. The motor according to claim 6, characterized in that, In a direction perpendicular to the axis of the first winding portion (10), the second connector (66) and the third connector (67) are respectively engaged with the second cover plate (70) on both sides.

8. The motor according to claim 1, characterized in that, The inner wall surface of the second cover plate (70), which is opposite to the first cover plate (60), is provided with: Multiple second snap-fit ​​portions (72), a second groove (73) is formed between two adjacent second snap-fit ​​portions (72), or a second groove (73) is formed between the edge of the second snap-fit ​​portion (72) and the second cover plate (70), the second groove (73) is used to install the connection part between the pin (200) and the lead wire (400); Multiple crimping protrusions (74) are provided for abutting the lead wire (400) after the second cover plate (70) is mounted to the first cover plate (60).

9. The motor according to any one of claims 1-8, characterized in that, The mounting portion (40) has a length direction, a thickness direction and a height direction. The length direction is perpendicular to the axis of the first winding portion (10). The thickness direction is parallel to a radial direction of the first winding portion (10). The height direction is parallel to the axis of the first winding portion (10). There are multiple first through holes (41). The multiple first through holes (41) are spaced apart along the length direction.

10. The motor according to claim 9, characterized in that, The blocking part (50) is a solid part and is flat in shape. The long side of the blocking part (50) extends along the length direction, and the high side of the blocking part (50) extends along the height direction.

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