Coil framework, coil assembly and motor

Abstract

The utility model discloses a coil framework, a coil assembly and a motor, and the coil framework comprises a first winding part which is cylindrical and is used for winding a winding wire; the first blade-shaped part is arranged at one axial end of the first winding part, and the second blade-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 the first through hole is used for mounting a contact pin; 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, and the blocking part can prevent metal beads generated during metal treatment of the contact pin from rolling towards the axis direction of the first winding part. The coil framework has the advantage of preventing the tin beads from rolling into the gear assembly when the tin coating process is carried out on the contact pins.

Description

TECHNICAL FIELD

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

[0002] The prior art electric machine generally comprises a housing, a stator coil assembly, a rotor coil assembly, a pin and a lead wire, etc., wherein 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 appear 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 a coil former which can at least solve the technical problem that the electric machine in the prior art is prone to tin beads generated by tin-brazing rolling inward into the gear box, causing the gear box to appear to be jammed or even stuck.

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

[0005] The coil former according to the first aspect of the present application comprises: a first winding part, the shape of the first winding part is columnar, and the first winding part is used for winding a winding wire; a first and a second clapper-shaped part, the first clapper-shaped part is arranged at one end of the axial direction of the first winding part, and the second clapper-shaped part is arranged at the other end of the axial direction of the first winding part; a mounting part, the mounting part is arranged at the outer periphery of the first clapper-shaped part, and a first through hole is arranged on the mounting part, the first through hole is used for mounting a pin; and a blocking part, the blocking part protrudes from the surface of the mounting part on the side away from the second clapper-shaped part and is located on the side of the first through hole in the direction close to the axis of the first winding part, and the blocking part can block metal beads generated during metal processing of the pin from rolling in the direction of the axis of the first winding part.

[0006] Optionally, the mounting part has a length direction, a thickness direction and a height direction, the length direction is perpendicular to the axis direction of the first winding part, the thickness direction is parallel to the radial direction of the first winding part, and the height direction is parallel to the axis direction of the first winding part.

[0007] Optionally, the blocking part is a solid structure, and / or the shape of the blocking part is a flat plate.

[0008] Optionally, the number of the first through holes is multiple, and the multiple first through holes are distributed at intervals in the length direction of the mounting part, and the edge of the blocking part exceeds the position of the outermost first through hole.

[0009] Optionally, a length of the blocking portion is not less than a length of the mounting portion in a length direction of the mounting portion.

[0010] Optionally, the blocking portion and the mounting portion are integrally formed.

[0011] Optionally, the first clapper portion, the blocking portion and the mounting portion are integrally formed; or the first clapper portion, the first wire winding portion, the blocking portion and the mounting portion are integrally formed.

[0012] According to the second aspect of the present application, the coil assembly comprises: a pin; a motor skeleton, the motor skeleton comprising any of the coil skeletons described above, the pin being mounted in the first through hole of the coil skeleton.

[0013] Optionally, the motor skeleton comprises: a first skeleton, the first skeleton being the coil skeleton; and a second skeleton, the second skeleton being connected with the first skeleton.

[0014] According to the third aspect of the present application, the motor comprises: a coil assembly, the coil assembly being any of the coil assemblies described above; and a gear assembly, at least a part of the gear assembly being located on one side of the blocking portion, and the pin being located on the other side of the blocking portion.

[0015] According to the coil assembly of the present application, the blocking portion can be used to block the metal beads generated during the metal processing of the pin from rolling to the gear assembly, so that the gear assembly can be effectively prevented from being affected by the metal beads, for example, the motor can be effectively prevented from being jammed, deadlocked or producing abnormal sound due to tin plating.

[0016] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0018] Figure 1 FIG. 1 is a perspective view of a motor according to an embodiment of the present application;

[0019] Figure 2 FIG. 2 is a partial view of the motor according to an embodiment of the present application;

[0020] Figure 3 FIG. 3 is an assembly view of a coil skeleton, a pin and a lead according to an embodiment of the present application;

[0021] Figure 4 FIG. 4 is a perspective view of the coil skeleton according to an embodiment of the present application;

[0022] Figure 5 A front view of a coil former according to an embodiment of the present application;

[0023] Figure 6 A perspective structural schematic view of another view angle of a coil former according to an embodiment of the present application;

[0024] Figure 7 A structural schematic view of a pin according to an embodiment of the present application;

[0025] Figure 8 A front view of a first cover plate according to an embodiment of the present application;

[0026] Figure 9 A perspective structural schematic view of an angle of a first cover plate according to an embodiment of the present application;

[0027] Figure 10 A perspective structural schematic view of another angle of a first cover plate according to an embodiment of the present application;

[0028] Figure 11 An assembly schematic view of a first cover plate and a pin according to an embodiment of the present application;

[0029] Figure 12 An assembly schematic view of a second cover plate and a pin, a lead according to an embodiment of the present application;

[0030] Figure 13 A perspective structural schematic view of an angle of a second cover plate according to an embodiment of the present application;

[0031] Figure 14 A perspective structural schematic view of another angle of a second cover plate according to an embodiment of the present application.

[0032] Reference Signs

[0033] Coil former 100;

[0034] First winding portion 10;

[0035] First cymbal-shaped portion 20;

[0036] Second cymbal-shaped portion 30;

[0037] Mounting portion 40;

[0038] First through hole 41; first hole segment 411; second hole segment 412;

[0039] First surface 42; second surface 43; third surface 44; first circular arc surface 45; second circular arc surface 46; fourth surface 47;

[0040] opening slot 48;

[0041] gap 49;

[0042] blocking portion 50; body 51; first extension 52; second extension 53;

[0043] first cover plate 60; second through hole 61; second avoiding space 62; first slot 63;

[0044] clamping protrusion 64; second side surface 641; third side surface 642;

[0045] first connecting body 65; first connecting portion 651; second connecting portion 652;

[0046] second connecting body 66; third connecting body 67; first avoiding space 68; slit 69;

[0047] second cover plate 70; clamping groove 71; second clamping portion 72; second slot 73; crimping protrusion 74; protruding portion 741; baffle 75; connecting plate 76; limiting protrusion 77; limiting slot 78;

[0048] pin 200; first segment 201; second segment 202; third segment 203;

[0049] second skeleton 300; second winding portion 301; third clapper-shaped portion 302; fourth clapper-shaped portion 303; avoiding slot 304;

[0050] lead wire 400;

[0051] gear assembly 500. DETAILED DESCRIPTION

[0052] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present application unless specifically stated otherwise.

[0053] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application or its application or uses.

[0054] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description if appropriate.

[0055] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0056] 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.

[0057] The coil frame 100 according to an embodiment of this application is described in detail below with reference to the accompanying drawings.

[0058] like Figures 1 to 14 As shown, the coil frame 100 of this application will be described in detail below with reference to specific embodiments.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 is used to wind the 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.

[0063] The first clapper 20 is arranged at one end of the first winding portion 10 in the axial direction, and the second clapper 30 is arranged at the other end of the first winding portion 10 in the axial direction. For example, the first clapper 20 is arranged at the upper end of the first winding portion 10, and the second clapper 30 is arranged at the lower end of the first winding portion 10. The mounting portion 40 is arranged at the outer periphery of the first clapper 20. For example, the mounting portion 40 is arranged at the outer periphery of about one fourth of the first clapper 20. At least one first through hole 41 is arranged on the mounting portion 40. That is, the first through hole 41 is arranged to pass through the mounting portion 40. The 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. When the pin 200 is mounted, the winding wire can be connected to the pin 200. In the present 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. The winding wire can be prevented from sliding. The pin 200 includes but is not limited to a square pin.

[0064] Further, the blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second clapper 30. The blocking portion 50 is arranged on the side of the first through hole 41 close to the axis of the first winding portion 10. For example, the first clapper 20 is arranged above the second clapper 30, and the blocking portion 50 is arranged on the upper surface of the mounting portion 40. When the coil former 100 of the present application is applied to a motor, the motor includes a gear assembly 500. At least a part of the gear assembly 500 is arranged on the side of the blocking portion 50. For example, the gear assembly 500 includes a plurality of gears meshing with each other. At least a part of the gears is arranged on the side of the blocking portion 50. The pin 200 is arranged on the other side of the blocking portion 50. The metal beads generated during the metal processing of the pin 200 can be blocked by the blocking portion 50 from rolling to the gear assembly 500. For example, when the pin 200 is tinned, the tin beads after tinning can be prevented from entering the inside of the gear assembly 500, causing the gear assembly 500 to jam or even be stuck, and avoiding abnormal noise. That is, the tin beads generated during the tinning of the existing terminal post of the motor can be prevented from splashing into the inside of the gear box. In addition, when the coil former 100 is assembled, the tinning can be performed after the enameled wire is wound around the pin 200, which can play a protection function. The enameled wire joint is wound around the pin 200. The tinning can make the pin 200 and the enameled wire conductive with each other.

[0065] Therefore, according to the coil former 100 of the present application, the metal beads generated during the metal processing of the pin 200 can be blocked by the blocking portion 50 from rolling to the gear assembly 500. The gear assembly 500 can be effectively prevented from being affected by the metal beads. For example, the motor can be prevented from jamming, being stuck, and generating abnormal noise due to tinning.

[0066] According to an embodiment of the present 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 one 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 the length direction of itself, the thick side extends along the thickness direction of itself, and the high side extends along the height direction of itself. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to one 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.

[0067] In the present embodiment, by defining that the mounting portion 40 has a length direction, a thickness direction and a height direction, it is convenient to process and manufacture the mounting portion 40, and it is convenient to arrange the first through holes 41, for example, a plurality of first through holes 41 are distributed at intervals along the length direction, and the contact pins 200 are arranged in each first through hole 41, which is also conducive to the arrangement of the row of contact pins 200.

[0068] In some specific embodiments of the present application, the blocking portion 50 is a solid structure, which can expand the range of the blocking metal beads and is convenient for processing and production.

[0069] According to an embodiment of the present application, the shape of the blocking portion 50 is a flat plate, which is not only convenient for processing and production, but also conducive to improving the appearance aesthetics, and can also expand the range of the blocking metal beads.

[0070] It should be noted that the blocking portion 50 can be a solid structure, the shape of the blocking portion 50 can be a flat plate, or both conditions can be met at the same time, which can be set according to product design requirements.

[0071] According to an embodiment of the present application, the number of first through holes 41 is a plurality, and each first through hole 41 can correspond to one contact pin 200, so as to increase the total amount of contact pins 200. In the length direction of the mounting portion 40, a plurality of first through holes 41 are distributed at intervals, for example, the length direction of the mounting portion 40 is the left-right direction, and a plurality of first through holes 41 are distributed at intervals along the left-right direction. The edge of the blocking portion 50 exceeds the position of the outermost first through hole 41, for example, in the left-right direction, the left edge of the blocking portion 50 exceeds the leftmost first through hole 41, and the right edge of the blocking portion 50 exceeds the rightmost first through hole 41, which can expand the shielding range and protect the metalization process of a plurality of contact pins 200 by one blocking portion 50.

[0072] In some embodiments of the present application, the length of the blocking portion 50 is not less than the length of the mounting portion 40 in the length direction of the mounting portion 40, that is, the length of the blocking portion 50 is greater than or equal to the length of the mounting portion 40, which can further expand the protection effect. For example, the length of the blocking portion 50 is equal to the length of the mounting portion 40 in the left-right direction; for another example, the length of the blocking portion 50 is greater than the length of the mounting portion 40 in the left-right direction.

[0073] According to an embodiment of the present application, the blocking portion 50 and the mounting portion 40 are integrally formed, for example, can be prepared and produced by integrally injection molding.

[0074] In some embodiments of the present application, the first clapper portion 20, the blocking portion 50, and the mounting portion 40 are integrally formed, for example, can be prepared and produced by integrally injection molding, which is convenient for processing.

[0075] According to an embodiment of the present application, the first clapper portion 20, the first winding portion 10, the blocking portion 50, and the mounting portion 40 are integrally formed, for example, can be prepared and produced by integrally injection molding, which is convenient for processing.

[0076] The present application also provides a coil assembly, comprising: a pin 200 and a motor skeleton, the motor skeleton comprising the coil skeleton 100 of any of the above embodiments, and the pin 200 is installed in the first through hole 41 of the coil skeleton 100. Since the coil assembly of the present application comprises the coil skeleton 100 of any of the above embodiments, and the coil skeleton 100 has a protection effect, the coil assembly of the present application has the same effect, which will not be repeated here.

[0077] According to an embodiment of the present application, the motor skeleton comprises: a first skeleton and a second skeleton 300, the first skeleton is the coil skeleton 100, and the second skeleton 300 is connected with the first skeleton. For example, the first skeleton is located above the second skeleton 300, and the first skeleton can be defined as an upper skeleton, and the second skeleton 300 is defined as a lower skeleton. Among them, the first skeleton is the coil skeleton 100 of any of the above embodiments. Optionally, the first skeleton and the second skeleton 300 can be coaxially arranged.

[0078] The present application also provides a motor, comprising: a coil assembly and a gear assembly 500, the coil assembly is any of the above coil assemblies, at least a part 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.

[0079] The motor of the present application will be described in detail below in combination with the drawings.

[0080] As Figures 1 to 14As shown, the motor according to the embodiment of the application comprises a coil assembly, a gear assembly 500, a first cover plate 60 and a second cover plate 70.

[0081] Specifically, the coil assembly comprises a pin 200 and a motor skeleton, the motor skeleton comprises a first winding portion 10, a first gong-shaped portion 20, a second gong-shaped portion 30, a mounting portion 40 and a blocking portion 50, the first winding portion 10 is columnar in shape and is used for winding a winding wire, the first gong-shaped portion 20 is arranged at one end of the first winding portion 10 in the axial direction, the second gong-shaped portion 30 is arranged at the other end of the first winding portion 10 in the axial direction, the mounting portion 40 is arranged at the outer periphery of the first gong-shaped portion 20, the mounting portion 40 is provided with a first through hole 41, the first through hole 41 is used for mounting the pin 200, the blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second gong-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, at least a part of the gear assembly 500 is located on the side of the blocking portion 50, the pin 200 is located on the other side of the blocking portion 50, the metal beads generated during the metal processing of the pin 200 can be blocked from rolling to the gear assembly 500 by the blocking portion 50, at least a part of the first cover plate 60 is arranged 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 with a lead wire 400, the second cover plate 70 is arranged on the side of the first cover plate 60 away from the mounting portion 40, and the second cover plate 70 can shield the lead wire 400 and the connection part of the lead wire 400 and the pin 200.

[0082] In other words, the motor according to the embodiment of the application combines the coil assembly, the gear assembly 500, the first cover plate 60 and the second cover plate 70, the coil assembly mainly comprises the pin 200 and the motor skeleton, and the motor skeleton mainly comprises the first winding portion 10, the first gong-shaped portion 20, the second gong-shaped portion 30, the mounting portion 40 and the blocking portion 50.

[0083] The first winding portion 10 is columnar in shape, for example, the first winding portion 10 is a cylindrical member extending in the up-down direction. The first winding portion 10 can be used for winding the winding wire, that is, the winding wire can be wound on the first winding portion 10.

[0084] The first flange 20 is arranged at one end of the first winding portion 10 in the axial direction, and the second flange 30 is arranged at the other end of the first winding portion 10 in the axial direction. For example, the first flange 20 is arranged at the upper end of the first winding portion 10, and the second flange 30 is arranged at the lower end of the first winding portion 10. The mounting portion 40 is arranged at the outer periphery of the first flange 20. For example, the mounting portion 40 is arranged at the outer periphery of about one fourth of the first flange 20. The first through hole 41 is arranged on the mounting portion 40. The first through hole 41 is arranged to pass through the mounting portion 40, and 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 mounting. 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 sliding.

[0085] In addition, the blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second flange 30, and the blocking portion 50 is located on the side of the first through hole 41 close to the axis of the first winding portion 10. For example, the first flange 20 is located above the second flange 30, and the blocking portion 50 is located on the upper surface of the mounting portion 40.

[0086] In addition, at least a part of the gear assembly 500 is located on the side of the blocking portion 50. For example, the gear assembly 500 includes a plurality of gears meshing with each other, and at least a part of the gears is located on the side of the blocking portion 50. The pin 200 is located on the other side of the blocking portion 50, and the metal beads generated during the metal processing of the pin 200 can be blocked by the blocking portion 50 from rolling to the gear assembly 500. For example, when the pin 200 is tinned, the tin beads after tinning can be prevented from entering the inside of the gear assembly 500, causing jamming or even being stuck.

[0087] In addition, at least a portion of the first cover plate 60 is arranged 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 the projection plane extending in the height direction along the upward and downward directions and the width direction along the horizontal direction, the orthographic projection of the first cover plate 60 covers the orthographic projection of the mounting portion 40. It can be understood that in the present embodiment, the side close to the axis direction of the first winding portion 10 is the inner side, and the side away from the axis direction of the first winding portion 10 is the outer side. The second through hole 61 is arranged on the first cover plate 60, and one end of the pin 200 passes through the second through hole 61 and is connected with the lead wire 400, that is, a portion of the pin 200 extends out of the first through hole 41 and then extends into the second through hole 61, and then passes through the second through hole 61 and is connected with the lead wire 400. In the present embodiment, by adopting the first cover plate 60, the mounting portion 40 can be shielded, and the pin 200 and the winding wire extending out of the mounting portion 40 can also be shielded, which can improve the appearance and safety, and the pin 200 can also be limited by the second through hole 61. In addition, by arranging 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 is connected with the lead wire 400, for example, one end of the pin 200 is welded with the lead wire 400 after passing through the second through hole 61, and under the shielding of the first cover plate 60, the metal material during welding is not easy to splash into the inside of the gear assembly 500.

[0088] As shown in Figure 1 The second cover plate 70 is arranged on the side of the first cover plate 60 away from the mounting portion 40, that is, the second cover plate 70 is arranged on the outer side of the first cover plate 60, for example, on the projection plane extending in the height direction along the upward and downward directions and the width direction along the horizontal direction, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In the present embodiment, by arranging the second cover plate 70, the lead wire 400 and the connection position of the lead wire 400 and the pin 200 can be shielded, which can improve the appearance, structural stability and safety, and avoid the influence of the external environment on the connection position of the lead wire 400 and the pin 200 and the lead wire 400.

[0089] Therefore, the motor according to the embodiment of the present application combines the coil assembly, the gear assembly 500, the first cover plate 60 and the second cover plate 70, which not only can block the metal beads generated during the metal processing of the pin 200 from rolling to the gear assembly 500 by the blocking portion 50, and effectively prevent the gear assembly 500 from being affected by the metal beads, for example, causing the motor to jam, etc., but also can improve the appearance, structural stability and safety by the first cover plate 60 and the second cover plate 70.

[0090] According to one embodiment of the present application, the highest end of the pin 200 is higher than the highest end of the blocking portion 50 in the direction parallel to the axis of the first winding portion 10. For example, in the up-down direction, the uppermost end of the pin 200 mounted into the first through hole 41 is higher than the position of the uppermost end of the blocking portion 50, and during the mounting process, the upper end of the pin 200 can be forced to bend outwardly from the inside of the mounting portion 40 through the blocking portion 50. In this embodiment, by limiting the position of the highest end of the pin 200, the upper part of the pin 200 mounted into the first through hole 41 can be forced to bend outwardly during the mounting process by passing through the blocking portion 50 in the direction from inside to outside, driving the upper part of the pin 200 to bend outwardly.

[0091] In some embodiments of the present application, as shown in Figure 3 the blocking portion 50 is spaced apart from the first through hole 41 to form a gap 49 in the direction from the mounting portion 40 to the axis of the first winding portion 10. That is, the first through hole 41, the gap 49 and the blocking portion 50 are arranged in sequence in the direction from outside to inside. In this embodiment, by providing the gap 49, the upper part of the pin 200 mounted into the first through hole 41 can be forced to bend outwardly during the mounting process by passing through the gap 49, for example, the pin 200 in the first through hole 41 extends substantially in the up-down direction, and the pin 200 above the first through hole 41 bends outwardly relative to the pin 200 in the first through hole 41 after being forced to bend outwardly.

[0092] It should be noted that the condition that the highest end of the pin 200 is higher than the highest end of the blocking portion 50 in the direction parallel to the axis of the first winding portion 10 can be satisfied alone, the condition that the blocking portion 50 is spaced apart from the first through hole 41 to form a gap 49 in the direction from the mounting portion 40 to the axis of the first winding portion 10 can be satisfied alone, or both conditions can be satisfied simultaneously. The bending mode can be variously set according to product design requirements.

[0093] In some embodiments of the present 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 and connected by the second surface 43 in the direction parallel to the axis of the first winding portion 10, one end of the first through hole 41 communicates with the first surface 42, the other end of the first through hole 41 communicates with the third surface 44, the outer side of the mounting portion 40 is provided with an opening groove 48 spaced apart from the first through hole 41, the opening groove 48 respectively communicates with the first surface 42, the second surface 43 and the third surface 44, the opening groove 48 is used to pass through the winding wire, and the included angle between the third surface 44 and the second surface 43 is an obtuse angle.

[0094] That is, the outer surface of the mounting portion 40 mainly comprises the first surface 42, the second surface 43 and the third surface 44, the first surface 42 and the third surface 44 are distributed at intervals, for example, in the direction parallel to the axis of the first winding portion 10 and are connected by the second surface 43, that is, the first surface 42 and the third surface 44 are connected in an indirect connection manner, and the second surface 43 is connected with the first surface 42 and the third surface 44 respectively. Moreover, a part of the first through hole 41 is arranged on the first surface 42, and another part is arranged on the third surface 44, that is, 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.

[0095] In addition, the outer side of the mounting portion 40 is provided with an opening groove 48 which is spaced apart from the first through hole 41, and a part of the opening groove 48 is arranged on the first surface 42, another part is arranged on the second surface 43, and the third part is arranged on the third surface 44. That is, the opening groove 48 respectively communicates with the first surface 42, the second surface 43 and the third surface 44. In this embodiment, the winding wire on the first winding portion 10 can be connected with the part of the pin 200 which protrudes out of the first through hole 41 through the opening groove 48. For example, the upper part of the pin 200 protrudes out of the upper end of the first through hole 41 and is connected with the winding wire. In this embodiment, the position of the winding wire can be limited by arranging the opening groove 48, so as to avoid the interference between the winding wire and other structures, and improve the efficiency and safety of the winding wire.

[0096] In addition, the angle between the third surface 44 and the second surface 43 is obtuse, for example, the second surface 43 extends in the vertical direction, the third surface 44 is below the first surface 42, and the angle between the third surface 44 and the second surface 43 is obtuse, and the third surface 44 is arranged inclinedly relative to the second surface 43, so as to buffer the bending degree of the winding wire connected between the mounting portion 40 and the first winding portion 10, and avoid the winding wire being cut off due to the outer surface of the mounting portion 40.

[0097] According to one embodiment of the present application, the outer surface of the mounting portion 40 further comprises a fourth surface 47, the fourth surface 47 is parallel to the first surface 42, the third surface 44 is connected with the first anvil-shaped portion 20 through the fourth surface 47, and a part of the opening groove 48 is arranged on the fourth surface 47.

[0098] That is, in the embodiment, the outer surface of the mounting portion 40 mainly comprises the first surface 42, the second surface 43, the third surface 44 and the fourth surface 47, the fourth surface 47 is connected with the third surface 44 and the first clapper-shaped portion 20 respectively, and the third surface 44 is indirectly connected with the first clapper-shaped portion 20. The first part of the opening slot 48 is arranged on the first surface 42, the second part is arranged on the second surface 43, the third part is arranged on the third surface 44, and the fourth part is arranged on the fourth surface 47, that is, the opening slot 48 simultaneously communicates the first surface 42, the second surface 43, the third surface 44 and the fourth surface 47.

[0099] In the embodiment, by adopting the fourth surface 47, the area of the region for machining the third surface 44 on the mounting portion 40 can be reduced, and the machining is facilitated. In addition, by connecting the opening slot 48 with the fourth surface 47, not only the machining of the opening slot 48 on the outer surface of the mounting portion 40 is facilitated, but also the wall edge friction of the winding wire caused by the opening slot 48 being too short can be avoided.

[0100] In some embodiments of the present application, in the direction parallel to the axis of the first winding portion 10, the width dimension of the end of the opening slot 48 away from the second clapper-shaped portion 30 is smaller than the width dimension of the end close to the second clapper-shaped portion 30. For example, the axis direction of the first winding portion 10 is the up-down direction, the second clapper-shaped portion 30 is located below the first clapper-shaped portion 20, and the width dimension of the upper end of the opening slot 48 is smaller than the width dimension of the lower end of the opening slot 48. The upper section of the opening slot 48 can be a straight slot section extending in the up-down direction, and the lower section of the opening slot 48 can be a horn-shaped slot section with a narrow upper part and a wide lower part extending in the up-down direction. In the embodiment, by limiting the shape of the opening slot 48, the protection effect on the winding wire can be improved, and the winding wire in the first winding portion 10 and the opening slot 48 is prevented from being disconnected due to the edge friction of the opening slot 48.

[0101] According to an embodiment of the present application, the first cover plate 60 comprises a first connecting body 65, a second connecting body 66 and a third connecting body 67, the second connecting body 66 is arranged on the first connecting body 65 and cooperates with the first connecting body 65 to form a first avoiding space 68 to avoid the mounting portion 40, the second connecting body 66 is provided with a second through hole 61, and the third connecting body 67 is provided with a plurality of first grooves 63 for limiting the lead wire 400. For example, the extension direction of the first groove 63 is parallel to the axial direction of the first winding portion 10.

[0102] That is, the first cover plate 60 of the embodiment of the present application is mainly composed of the first connecting body 65, the second connecting body 66 and the third connecting body 67. The second connecting body 66 is connected with the first connecting body 65, and the first avoiding space 68 is formed by cooperation between the second connecting body 66 and the first connecting body 65. The mounting portion 40 can be avoided through the first avoiding space 68, that is, after the first cover plate 60 is installed, the mounting portion 40 can extend into the first avoiding space 68.

[0103] The second connecting body 66 is provided with the second through hole 61, and one end of the pin 200 is connected with the lead wire 400 after penetrating through the second through hole 61. The third connecting body 67 is provided with a plurality of first grooves 63, for example, each first groove 63 extends along the axis direction parallel to the first winding portion 10. At least a part of the lead wire 400 can be installed in the first groove 63, so that the limiting effect for the lead wire 400 can be achieved.

[0104] In some specific embodiments of the present application, in a direction perpendicular to the axis of the first winding portion 10, the two sides of the second connecting body 66 and the third connecting body 67 are respectively clamped with the second cover plate 70. For example, the left side of the second connecting body 66 is clamped with the left side of the second cover plate 70, and the right side of the second connecting body 66 is also clamped with the right side of the second cover plate 70. Similarly, the left side of the third connecting body 67 is clamped with the left side of the second cover plate 70, and the right side of the third connecting body 67 is also clamped with the right side of the second cover plate 70. The clamping of the four positions can be achieved. Alternatively, the clamping structures of the two sides of the second connecting body 66 are corresponding, the clamping structures of the two sides of the third connecting body 67 are symmetrical, the four clamping positions form a rectangle, which can improve the combination stability, expand the range of the combination area, and the symmetrical design is convenient for processing and manufacturing.

[0105] In the embodiment, by limiting that in a direction perpendicular to the axis of the first winding portion 10, the two sides of the second connecting body 66 and the third connecting body 67 are respectively clamped with the second cover plate 70, the combination firmness is improved. During assembly, by limiting the shape of the clamping structure, the second cover plate 70 can be covered on the outside of the first cover plate 60 along the 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 the direction parallel to the axis of the first winding portion 10, which is convenient for use and operation. In addition, by using the clamping mode, the installation and disassembly are convenient. By clamping the two sides respectively, the overall stability is also improved.

[0106] According to one embodiment of the present application, as shown in Figure 12 The inner wall surface of the second cover plate 70 opposite to the first cover plate 60 is provided with a plurality of second clamping portions 72 and a plurality of crimping protrusions 74.

[0107] Specifically, a second slot 73 is formed between two adjacent second clamping portions 72, or a second slot 73 is formed between the second clamping portion 72 and the edge of the second cover plate 70, the second slot 73 is used to install the connection part between the pin 200 and the lead 400, and the crimping protrusion 74 is used to abut the lead 400 after the second cover plate 70 is installed to the first cover plate 60.

[0108] That is, the second cover plate 70 is arranged outside at least a part of the first cover plate 60, and the inner side of the second cover plate 70 is provided with the second clamping portion 72 and the crimping protrusion 74. The number of the second clamping portion 72 is multiple, and a second slot 73 is formed between two adjacent second clamping portions 72. Or, a second slot 73 is formed between the second clamping portion 72 and the edge of the second cover plate 70, for example, a plurality of second clamping portions 72 are distributed in the left-right direction, the leftmost second clamping portion 72 has a second slot 73 with the left edge of the second cover plate 70, and the rightmost second clamping portion 72 has a second slot 73 with the right edge of the second cover plate 70. In this embodiment, by arranging the second slot 73, the connection part between the pin 200 and the lead 400 can be installed in the second slot 73, so that the connection part can be limited. In addition, after the second cover plate 70 is installed to the first cover plate 60, the crimping protrusion 74 can abut the lead 400 to limit the lead 400. By installing the second cover plate 70 to the first cover plate 60, an acting force can be applied to the lead 400, so that at least a part of the lead 400 is clamped between the crimping protrusion 74 and the first cover plate 60.

[0109] In some specific embodiments of the present application, the mounting portion 40 has a length direction, a thickness direction and a height direction, the length direction is perpendicular to the axis direction of the first winding portion 10, the thickness direction is parallel to one radial direction of the first winding portion 10, and the height direction is parallel to the axis direction of the first winding portion 10. The number of the first through hole 41 is multiple, and the multiple first through holes 41 are distributed in the length direction.

[0110] That is, the long side of the mounting portion 40 extends in the length direction of itself, the thick side extends in the thickness direction of itself, and the high side extends in the height direction of itself. The length direction is perpendicular to the axis direction of the first winding portion 10, the thickness direction is parallel to one radial direction of the first winding portion 10, and the height direction is parallel to the axis 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.

[0111] In addition, when the first through holes 41 are multiple, the multiple first through holes 41 can be distributed along the length direction, for example, distributed along the left-right direction, facilitating the simultaneous installation of multiple pins 200 and facilitating the simultaneous bending of the multiple pins 200 and the like. 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 along the length direction, it is beneficial to control the orderly arrangement of the multiple pins 200 on the mounting portion 40, and is beneficial to the subsequent installation of the first cover plate 60 and the second cover plate 70. In addition, when the number of pins 200 is multiple, the mounting portion 40 can adopt a plastic structure, or the inner wall of the first through hole 41 is coated with an insulating material to realize the insulation between the adjacent two pins 200 and prevent short circuit.

[0112] According to an embodiment of the present application, the blocking portion 50 is a solid piece, and the shape is a flat plate, the long side of the blocking portion 50 extends along the length direction, and the high side of the blocking portion 50 extends along the height direction. That is, the blocking portion 50 is a solid flat plate structure, and the multiple first through holes 41 are distributed along the length direction. By adopting the blocking portion 50, not only the range of the blocking metal beads can be expanded, but also the metal beads generated during the metal processing of the multiple pins 200 can be blocked at the same time, and the solid flat plate structure is convenient for processing and production.

[0113] Optionally, the motor further comprises a shell, and the coil former 100 and the like are arranged in the shell.

[0114] The bending process of the pin 200 of the embodiment of the present application will be described in detail below in combination with specific embodiments.

[0115] According to an embodiment of the present application, the assembly method of the coil assembly comprises the following steps:

[0116] The pin 200 is installed in the first through hole 41, as shown in Figure 7 The pin 200 comprises a first segment body 201, a second segment body 202 and a third segment body 203, the first segment body 201 protrudes out of the first through hole 41 and is located on the same side of the blocking portion 50 as the mounting portion 40, the second segment body 202 is located in the first through hole 41, and the third segment body 203 protrudes out of the first through hole 41 and extends towards the side close to the second hammer-shaped portion 30. In the direction parallel to the axis of the first winding portion 10, the highest end of the first segment body 201 is higher than the highest end of the blocking portion 50;

[0117] In the direction away from the axis of the first winding portion 10 from the blocking portion 50, a force is applied to the first segment body 201 to drive the first segment body 201 to bend.

[0118] That is, in the 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 up-down direction, the uppermost end of the pin 200 mounted into the first through hole 41 is higher than the position of the uppermost end of the blocking portion 50, and during the mounting process, an external force can be applied to the upper end of the pin 200 from the inner side of the mounting portion 40 through the blocking portion 50 to drive the upper end of the pin 200 to bend outward. In the present embodiment, by limiting the position of the highest end of the pin 200, the upper part of the pin 200 mounted into the first through hole 41 can be forced to bend outward by passing through the blocking portion 50 in the direction from the inside to the outside during the mounting process.

[0119] According to one embodiment of the present application, the first through hole 41 and the number of pins 200 are respectively multiple and one-to-one correspondence, and the multiple first segment bodies 201 are simultaneously forced in the direction away from the axis of the first winding portion 10 from the blocking portion 50. By providing multiple first through holes 41, it is convenient to simultaneously mount multiple pins 200, and it is convenient to simultaneously bend multiple pins 200 and other operations. Each first through hole 41 can correspond to one pin 200, which can increase the total number of pins 200. In addition, by distributing multiple first through holes 41 along the extension direction of the mounting portion 40, it is beneficial to control the orderly arrangement of multiple pins 200 on the mounting portion 40, and it is beneficial to the subsequent mounting of the first cover plate 60 and the second cover plate 70.

[0120] The present application also provides an assembly method of a coil assembly, the blocking portion 50 is spaced apart from the first through hole 41 to form a gap 49 in the direction from the mounting portion 40 to the axis of the first winding portion 10, and the blocking portion 50 can block the metal beads generated during the metal processing of the pin 200 from rolling in the direction of the axis of the first winding portion 10.

[0121] The assembly method comprises the following steps:

[0122] The pin 200 is mounted in the first through hole 41, the pin 200 comprises a first segment body 201, a second segment body 202 and a third segment body 203, the first segment body 201 extends out of the first through hole 41 and is located on the same side of the blocking portion 50 of the mounting portion 40, the second segment body 202 is located in the first through hole 41, and the third segment body 203 extends out of the first through hole 41 and extends towards one side of the second hammer portion 30.

[0123] An external force is applied to the first segment body 201 from the gap 49 away from the blocking portion 50 to drive the first segment body 201 to bend.

[0124] That is, in the direction from the mounting portion 40 to the axis direction of the first winding portion 10, the blocking portion 50 is spaced apart from the first through hole 41 to form a gap 49. That is, in one direction from the outside to the inside, the first through hole 41, the gap 49, and the blocking portion 50 are sequentially arranged. In the present embodiment, by arranging the gap 49, during the mounting process, the upper part of the pin 200 mounted in the first through hole 41 can be forced through the gap 49 to drive the upper part of the pin 200 to bend outward, for example, the pin 200 in the first through hole 41 extends substantially in the up-down direction, and after the pin 200 above the first through hole 41 is subjected to an external force, it bends outward relative to the pin 200 in the first through hole 41.

[0125] It should be noted that the condition that the highest end of the pin 200 is higher than the highest end of the blocking portion 50 in the direction parallel to the axis direction of the first winding portion 10 can be satisfied alone, the condition that the blocking portion 50 is spaced apart from the first through hole 41 to form a gap 49 in the direction from the mounting portion 40 to the axis direction of the first winding portion 10 can be satisfied alone, or both conditions can be satisfied simultaneously. The bending mode can be variously arranged according to product design requirements.

[0126] According to an embodiment of the present application, the number of first through holes 41 and the number of pins 200 are both multiple and one-to-one correspondence, and the multiple first segment bodies 201 are subjected to a force away from the blocking portion 50 from the gap 49 to drive the multiple first segment bodies 201 to bend simultaneously. By arranging multiple first through holes 41, it is convenient to simultaneously mount multiple pins 200 and to simultaneously bend multiple pins 200 and the like. Each first through hole 41 can correspond to one pin 200, which can increase the total number of pins 200. In addition, by spacing multiple first through holes 41 apart along the extension direction of the mounting portion 40, it is beneficial to control the orderly arrangement of multiple pins 200 on the mounting portion 40, and it is beneficial to the subsequent mounting of the first cover plate 60 and the second cover plate 70.

[0127] In addition, when the number of pins 200 is multiple, the mounting portion 40 can adopt a plastic structure, or the inner wall of the first through hole 41 is coated with an insulating material to achieve insulation between adjacent two pins 200 to prevent short circuit.

[0128] In some specific embodiments of the present application, in the direction parallel to the axis of the first winding portion 10, the side of the gap 49 away from the mounting portion 40 is open, for example, the height direction of the gap 49 is the up-down direction, and the upper side of the gap 49 is open, and a forcing tool can be inserted from the upper side.

[0129] According to one embodiment of the present 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 extension direction of the blocking portion 50. For example, the length direction of the gap 49 is the left-right direction, and the left and right sides of the gap 49 are open, and the force applying tool can be inserted through the open position.

[0130] It should be noted that the gap 49 can be open on the side away from the mounting portion 40 in the direction parallel to the axis of the first winding portion 10, or the gap 49 can be open on at least one side in the extension direction of the blocking portion 50, or both conditions can be met at the same time. The bending mode of the pin 200 is various and flexible.

[0131] In some embodiments of the application, the blocking portion 50 is a solid structure, which can expand the range of the blocking metal beads and facilitate processing and production.

[0132] In some embodiments of the application, as shown in Figure 5 The motor framework further includes a second framework 300, and the second framework 300 includes a second winding portion 301, a third tamper portion 302, and a fourth tamper portion 303. The second winding portion 301 is columnar in shape and is used to wind the winding wire. The third tamper portion 302 is arranged at one end of the second winding portion 301 in the axial direction, and the fourth tamper portion 303 is arranged at the other end of the second winding portion 301 in the axial direction. The third tamper portion 302 is connected to the second tamper portion 30, and as shown in Figure 6 The connection position of the two is provided with a relief groove 304 to avoid the third section 203 and avoid affecting the bending of the pin 200 and the lead wire 400. In addition, the first cover plate 60 inner wall can also be avoided, and the first cover plate 60 can be conveniently installed.

[0133] The mounting portion 40 according to the embodiment of the present application will be described in detail below.

[0134] The mounting portion 40 is arranged at the outer periphery of the first tamper portion 20. The mounting portion 40 is provided with a first through hole 41 for mounting the pin 200. 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 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. The outer side of the mounting portion 40 is provided with an opening groove 48 spaced apart from the first through hole 41. The opening groove 48 respectively communicates with the first surface 42, the second surface 43, and the third surface 44. 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 obtuse.

[0135] In other words, the mounting portion 40 is arranged at the outer periphery of the first flange portion 20, for example, the mounting portion 40 is arranged at the outer periphery of about one fourth of the first flange portion 20. At least one first through hole 41 is arranged on the mounting portion 40, that is, the first through hole 41 is arranged to pass through, which 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 and the like during mounting. In the present embodiment, the cross-sectional shape 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 sliding.

[0136] 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 and distributed, for example, spaced apart and distributed in the 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 in an indirect connection manner, and the second surface 43 is connected with the first surface 42 and the third surface 44 respectively. Moreover, part of the first through hole 41 is arranged on the first surface 42, and another part is arranged on the third surface 44, that is, 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.

[0137] The outer side of the mounting portion 40 is provided with an opening groove 48 which is spaced apart from the first through hole 41, part of the opening groove 48 is arranged on the first surface 42, another part is arranged on the second surface 43, and the third surface 44. That is, the opening groove 48 respectively communicates with the first surface 42, the second surface 43 and the third surface 44. In the present embodiment, the winding wire on the first winding portion 10 can be connected with the part of the pin 200 which extends out of the first through hole 41 through the opening groove 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 with the winding wire. In the present embodiment, the position of the winding wire can be limited by arranging the opening groove 48, which can avoid interference between the winding wire and other structures, improve the efficiency and safety of the winding wire.

[0138] The included angle between the third surface 44 and the second surface 43 is obtuse, for example, the second surface 43 extends in the vertical direction, the third surface 44 is below the first surface 42, and the included angle between the third surface 44 and the second surface 43 is obtuse, the third surface 44 is arranged inclined relative to the second surface 43, which can buffer the bending degree of the winding wire connected between the mounting portion 40 and the first winding portion 10, and avoid the winding wire being cut off due to the outer surface of the mounting portion 40.

[0139] According to one embodiment of the present application, the first surface 42 and the second surface 43 are connected through a first circular arc surface 45; and / or, the second surface 43 and the third surface 44 are connected through a second circular arc surface 46. By using the transition connection, the winding wire can be further protected, and the winding wire can be routed gently.

[0140] In some embodiments of the present application, the second surface 43 is closer to the second cymbal-shaped part 30 than the first surface 42. For example, the first cymbal-shaped part 20 is located above the second cymbal-shaped part 30, and the first surface 42 is located above the second surface 43. In the up-down direction, the second surface 43 is closer to the second cymbal-shaped part 30 than the first surface 42. In this embodiment, by using the second surface 43 closer to the second cymbal-shaped part 30 than the first surface 42, the winding wire can enter the open slot 48 at a shorter distance after being wound by the first winding part 10.

[0141] According to one embodiment of the present application, as shown in Figure 4 The first through hole 41 includes a first hole section 411 and a second hole section 412.

[0142] Specifically, one end of the first hole section 411 is connected to the first surface 42, a first end of the second hole section 412 is connected to the other end of the first hole section 411, a second end of the second hole section 412 is connected to the second surface 43, and a third end of the second hole section 412 is connected to the third surface 44. For example, the first through hole 41 includes the first hole section 411 and the second hole section 412 distributed in the up-down direction. The upper end of the first hole section 411 is connected to the first surface 42, the upper end of the second hole section 412 is connected to the lower end of the first hole section 411, and the lower end of the second hole section 412 is connected to the second surface 43 and the third surface 44. In this embodiment, since the second hole section 412 is connected to the second surface 43 and the third surface 44, one end of the pin 200 can extend out through the first hole section 411, the other end of the pin 200 can be bent outward toward the side where the second surface 43 is located, and the other end of the pin 200 can also have a certain distance from the third surface 44, avoiding contact with the winding wire passing through the third surface 44.

[0143] In some embodiments of the present application, the coil former 100 further includes a blocking part 50. The blocking part 50 protrudes from the first surface 42 and is located on the side of the first through hole 41 close to the axis of the first winding part 10. The blocking part 50 can block the metal beads generated during the metal processing of the pin 200 from rolling in the direction of the axis of the first winding part 10. That is, the blocking part 50 protrudes from the surface of the mounting part 40 away from the second cymbal-shaped part 30 and is located on the side of the first through hole 41 close to the axis of the first winding part 10.

[0144] The blocking portion 50 protrudes from the surface of the mounting portion 40 on the side away from the second anvil-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. For example, the first anvil-shaped portion 20 is located above the second anvil-shaped portion 30, and the blocking portion 50 is located on the upper surface of the mounting portion 40.

[0145] Also, as shown in Figure 2 At least a part 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 intermeshing gears, and at least a part of the gears is located on one side of the blocking portion 50. The pin 200 is located on the other side of the blocking portion 50, and the blocking portion 50 can block the metal beads generated during the metal processing of the pin 200 from rolling to the gear assembly 500. For example, when the pin 200 is tinned, the tin beads after soldering can be prevented from entering the inside of the gear assembly 500, causing jamming or even locking.

[0146] According to an embodiment of the present application, the mounting portion 40 has a length direction, a thickness direction, and a height direction, the length direction is perpendicular to the axis direction of the first winding portion 10, the thickness direction is parallel to one radial direction of the first winding portion 10, the height direction is parallel to the axis 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.

[0147] That is, the long edge of the mounting portion 40 extends in the length direction, the thick edge extends in the thickness direction, and the high edge extends in the height direction. The length direction is perpendicular to the axis direction of the first winding portion 10, the thickness direction is parallel to one radial direction of the first winding portion 10, and the height direction is parallel to the axis 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.

[0148] Optionally, the number of first through holes 41 is a plurality, and the plurality of first through holes 41 are spaced apart in the length direction, for example, spaced apart in the left-right direction, facilitating the simultaneous installation of a plurality of pins 200 and facilitating the simultaneous bending of a plurality of pins 200. Each first through hole 41 can correspond to one pin 200, which can increase the total number of pins 200. In addition, by spacing the plurality of first through holes 41 in the length direction, it is beneficial to control the orderly arrangement of the plurality of pins 200 on the mounting portion 40, and facilitate the subsequent installation of the first cover plate 60 and the second cover plate 70. In addition, when the number of pins 200 is a plurality, the mounting portion 40 can adopt a plastic structure, or the inner wall of the first through hole 41 is coated with an insulating material to achieve insulation between adjacent two pins 200, preventing short circuit.

[0149] In some embodiments of the present application, the outer surface of the mounting portion 40 further comprises a fourth surface 47, the fourth surface 47 is parallel to the first surface 42, the third surface 44 is connected to the first clapper portion 20 through the fourth surface 47, and a part of the opening slot 48 communicates with the fourth surface 47.

[0150] That is, in the present embodiment, the outer surface of the mounting portion 40 mainly comprises the first surface 42, the second surface 43, the third surface 44 and the fourth surface 47, the fourth surface 47 is connected to the third surface 44 and the first clapper portion 20 respectively, and the third surface 44 is indirectly connected to the first clapper portion 20. The first part of the opening slot 48 is arranged on the first surface 42, the second part is arranged on the second surface 43, the third part is arranged on the third surface 44, and the fourth part is arranged on the fourth surface 47, that is, the opening slot 48 simultaneously communicates with the first surface 42, the second surface 43, the third surface 44 and the fourth surface 47. In addition, the fourth surface 47 is parallel to the first surface 42, which is convenient for processing.

[0151] In the present embodiment, by adopting the fourth surface 47, the area of the region for processing the third surface 44 on the mounting portion 40 can be reduced, which is convenient for processing. In addition, by communicating the opening slot 48 with the fourth surface 47, not only is it convenient to process the opening slot 48 on the outer surface of the mounting portion 40, but also the wall edge friction of the opening slot 48 with the winding wire caused by the opening slot 48 being too short can be avoided.

[0152] According to one embodiment of the present application, in the thickness direction, the end of the opening slot 48 on the third surface 44 is closer to the center 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 inwardly, the minimum distance between the inner wall of the opening slot 48 on the third surface 44 and the center 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 center axis of the first winding portion 10 is L2, L1 < L2. In the present embodiment, in the thickness direction, the end of the opening slot 48 on the third surface 44 is closer to the center axis of the first winding portion 10 relative to the first through hole 41 on the third surface 44, which is conducive to protecting the winding wire and avoiding the winding wire from contacting the pin 200 passing through the first through hole 41 on the third surface 44.

[0153] In some embodiments of the present 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 than the opening slot 48 on the first surface 42. For example, the opening slot 48 on the first surface 42 extends inwardly, 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 adjacent to the opening slot 48 on the first surface 42 and the central axis of the first winding portion 10 is L4, L4 < L3, facilitating the connection of the pin 200 extending out of the first through hole 41 on the first surface 42 with the winding wire.

[0154] According to an embodiment of the present application, in the height direction, the width dimension of the opening slot 48 away from one end of the second clavate portion 30 is smaller than the width dimension close to one end of the second clavate portion 30. For example, the axis direction of the first winding portion 10 is the up-down direction, the second clavate portion 30 is located below the first clavate portion 20, and the width dimension of the upper end of the opening slot 48 is smaller than the width dimension of the lower end of the opening slot 48. The upper section of the opening slot 48 can be a straight slot section extending in the up-down direction, and the lower section of the opening slot 48 can be a horn-shaped slot section with a narrow upper part and a wide lower part extending in the up-down direction. In this embodiment, by limiting the shape of the opening slot 48, the protection effect on the winding wire can be improved, and the winding wire in the first winding portion 10 and the opening slot 48 is prevented from being disconnected due to the edge friction of the opening slot 48.

[0155] The first cover plate 60 of the present application will be described in detail below in conjunction with specific embodiments.

[0156] The mounting portion 40 is arranged at the outer periphery of the first flange-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 axial direction of the first winding portion 10. The thickness direction is parallel to one radial direction of the first winding portion 10. The height direction is parallel to the axial direction 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 at one side of the mounting portion 40 in the thickness direction. The mounting portion 40 is provided with a plurality of first through holes 41 for mounting the pins 200. The plurality of first through holes 41 are spaced apart in the length direction. At least a portion of the first cover plate 60 is arranged at the side of the mounting portion 40 away from the axial direction of the first winding portion 10. The first cover plate 60 has a first avoiding space 68 for avoiding the mounting portion 40. The first cover plate 60 includes a first connecting body 65, a second connecting body 66 and a third connecting body 67. The second connecting body 66 is arranged at the first connecting body 65 and cooperates with the first connecting body 65 to form the first avoiding space 68. The second connecting body 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 with the lead wire 400. The third connecting body 67 has a plurality of first grooves 63 for limiting the lead wire 400. The second cover plate 70 is arranged at the side of the first cover plate 60 away from the axial direction of the first winding portion 10. The second cover plate 70 can shield the lead wire 400 and the connection position of the lead wire 400 and the pin 200.

[0157] In the length direction, the two sides of the second connecting body 66 and the third connecting body 67 are respectively clamped with the second cover plate 70.

[0158] In other words, the long side of the mounting portion 40 extends in the length direction of itself, the thick side extends in the thickness direction of itself, and the high side extends in the height direction of itself. The length direction is perpendicular to the axial direction of the first winding portion 10. The thickness direction is parallel to one radial direction of the first winding portion 10. 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.

[0159] The outer surface of the mounting portion 40 mainly comprises a first surface 42, a second surface 43 and a third surface 44, the first surface 42 and the third surface 44 are distributed at intervals in the height direction, that is, distributed at intervals in the direction parallel to the axis of the first winding portion 10 and connected through the second surface 43, that is, the first surface 42 and the third surface 44 are connected in an indirect connection manner, the second surface 43 is connected with the first surface 42 and the third surface 44 respectively, and the second surface 43 is located on one side of the mounting portion 40 in the thickness direction. Moreover, part of the first through hole 41 is arranged on the first surface 42, and another part is arranged on the third surface 44, that is, 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.

[0160] A plurality of first through holes 41 are arranged on the mounting portion 40, that is, the number of the first through holes 41 is plural, and the plurality of first through holes 41 are distributed at intervals in the length direction, for example, distributed at intervals in the left-right direction, which facilitates the simultaneous installation of a plurality of pins 200 and facilitates the simultaneous bending and other operations of the plurality of pins 200. 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 plurality of first through holes 41 at intervals in the length direction, it is beneficial to control the orderly arrangement of the plurality of pins 200 on the mounting portion 40, and beneficial to the subsequent installation of the first cover plate 60 and the second cover plate 70. In addition, when the number of pins 200 is plural, the mounting portion 40 can adopt a plastic structure, or the inner wall of the first through hole 41 is coated with an insulating material to realize the insulation between the adjacent two pins 200 and prevent short circuit.

[0161] At least a portion of the first cover plate 60 is arranged 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 the projection plane extending in the height direction along the upward and downward direction and the width direction along the horizontal direction, the orthographic projection of the first cover plate 60 covers the orthographic projection of the mounting portion 40. It can be understood that in the embodiment, the side close to the axis direction of the first winding portion 10 is the inner side, and the side away from the axis direction of the first winding portion 10 is the outer side. The second through hole 61 is arranged on the first cover plate 60, and one end of the pin 200 passes through the second through hole 61 and is connected with the lead wire 400, that is, a portion of the pin 200 extends out of the first through hole 41 and then extends into the second through hole 61, and then passes through the second through hole 61 and is connected with the lead wire 400. In the embodiment, by adopting the first cover plate 60, the mounting portion 40 can be shielded, and the pin 200 and the winding wire extending out of the mounting portion 40 can also be shielded, which can improve the appearance and safety, and can also limit the pin 200 through the second through hole 61. In addition, by arranging 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 is connected with the lead wire 400, for example, one end of the pin 200 is welded with the lead wire 400 after passing through the second through hole 61, and under the shielding of the first cover plate 60, the metal material during welding is not easy to splash into the inside of the gear assembly 500.

[0162] In addition, the first cover plate 60 of the embodiment mainly comprises a first connecting body 65, a second connecting body 66 and a third connecting body 67, the second connecting body 66 is connected with the first connecting body 65, and a first avoiding space 68 is formed between the second connecting body 66 and the first connecting body 65. The mounting portion 40 can be avoided through the first avoiding space 68, that is, after the first cover plate 60 is installed, the mounting portion 40 can extend into the first avoiding space 68.

[0163] The second connecting body 66 is provided with the second through hole 61, and one end of the pin 200 passes through the second through hole 61 and is connected with the lead wire 400. The third connecting body 67 has a plurality of first grooves 63, for example, each first groove 63 extends along the axis direction parallel to the first winding portion 10. At least a portion of the lead wire 400 can be installed in the first groove 63, so as to realize the limiting effect of the lead wire 400.

[0164] The second cover plate 70 is arranged on the side of the first cover plate 60 away from the axis direction of the first winding part 10, that is, the second cover plate 70 is arranged on the side of the first cover plate 60 away from the mounting part 40, that is, the second cover plate 70 is arranged on the outside of the first cover plate 60, for example, on the projection surface extending in the height direction along the upward and downward direction and the width direction along the horizontal direction, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In the embodiment, the second cover plate 70 can shield the lead wire 400 and the connecting part of the lead wire 400 and the pin 200, and can improve the aesthetics, structural stability and safety, and avoid the influence of the external environment on the connecting part of the lead wire 400 and the pin 200 and the lead wire 400.

[0165] In addition, in the length direction, the two sides of the second connecting body 66 and the third connecting body 67 are respectively clamped with the second cover plate 70. For example, the left side of the second connecting body 66 is clamped with the left side of the second cover plate 70, and the right side of the second connecting body 66 is also clamped with the right side of the second cover plate 70. Similarly, the left side of the third connecting body 67 is clamped with the left side of the second cover plate 70, and the right side of the third connecting body 67 is also clamped with the right side of the second cover plate 70, and the clamping of the four positions can be realized. Alternatively, the clamping structures of the two sides of the second connecting body 66 correspond, the clamping structures of the two sides of the third connecting body 67 are symmetrical, and the four clamping positions form a rectangle, which can improve the combination stability, expand the range of the combination area, and facilitate processing and manufacturing by using the symmetrical design.

[0166] According to one embodiment of the present application, in the length direction, the two sides of the second connecting body 66 and the third connecting body 67 are respectively provided with clamping protrusions 64, and the positions corresponding to the clamping protrusions 64 on the second cover plate 70 are provided with clamping grooves 71. For example, the length direction is the left-right direction, the left and right sides of the second connecting body 66 are respectively provided with clamping protrusions 64, and the left and right sides of the second cover plate 70 are also respectively provided with clamping grooves 71. The clamping protrusions 64 and the clamping grooves 71 can be detachably connected to realize the installation and disassembly between the second cover plate 70 and the first cover plate 60. In the embodiment, the clamping protrusions 64 and the clamping grooves 71 are matched to facilitate operation, and the installation and disassembly are convenient.

[0167] In some specific embodiments of the present application, in the length direction, the two sides of the second connecting body 66 and the third connecting body 67 are respectively provided with clamping grooves 71, and the positions corresponding to the clamping grooves 71 on the second cover plate 70 are provided with clamping protrusions 64. For example, the left and right sides of the second connecting body 66 are respectively provided with clamping grooves 71, and the left and right sides of the second cover plate 70 are provided with clamping protrusions 64, which is convenient for installation and disassembly.

[0168] According to one embodiment of the present application, in the length direction, the two sides of one of the second connecting body 66 and the third connecting body 67 are respectively provided with the clamping groove 71, and the two sides of the other are respectively provided with the clamping protrusion 64. The second cover plate 70 is provided with the clamping protrusion 64 at the position corresponding to the clamping groove 71, and is provided with the clamping groove 71 at the position corresponding to the clamping protrusion 64. For example, the left and right sides of the second connecting body 66 are provided with the clamping groove 71, and the left and right sides of the third connecting body 67 are provided with the clamping protrusion 64; for another example, the left and right sides of the second connecting body 66 are provided with the clamping protrusion 64, and the left and right sides of the third connecting body 67 are provided with the clamping groove 71, which is convenient for operation.

[0169] As can be seen from the above combination, the clamping mode between the second cover plate 70 and the first cover plate 60 is various.

[0170] In some specific embodiments of the present application, the number of the clamping protrusions 64 and the clamping grooves 71 is multiple and one-to-one correspondence, and in the height direction, the multiple clamping protrusions 64 are distributed at intervals. For example, there are a total of four clamping protrusions 64, two clamping protrusions 64 are close to the upper side and form a group, and two clamping protrusions 64 are close to the lower side and form a group. In this embodiment, by limiting the multiple clamping protrusions 64 to be distributed at intervals, the limiting of different positions can be realized, and the structural stability is improved.

[0171] According to one embodiment of the present application, as shown in Figures 8 to 10 In the radial direction of the first winding part 10, the cross-sectional shape of the clamping protrusion 64 is triangular, the outer side surface of the clamping protrusion 64 includes a first side surface, a second side surface 641 and a third side surface 642, the first side surface is connected with the side surface of the second connecting body 66 or the third connecting body 67, the second side surface 641 is spaced apart from the first connecting body 65, the third side surface 642 is connected with the first side surface and the second side surface 641 respectively, and the included angle between the third side surface 642 and the second side surface 641 is an acute angle. In this embodiment, by limiting the shape of the clamping protrusion 64, the second cover plate 70 can be slidably installed along the axial direction parallel to the first winding part 10. In addition, by using the clamping protrusion 64 with the above shape, the limiting of the second cover plate 70 in the circumferential direction can be realized.

[0172] In some specific embodiments of the present application, in the height direction, the second connecting body 66 and the third connecting body 67 are distributed at intervals, for example, the second connecting body 66 is located above the third connecting body 67 and is spaced apart. In this embodiment, the space formed by the spacing can avoid the connection position of the lead 400 and the pin 200, and facilitate the mutual connection and connection operation of the lead 400 and the pin 200.

[0173] In the height direction, the plurality of first through holes 41 and the plurality of first grooves 63 correspond one by one, for example, at least a part of the first through hole 41 is located above one first groove 63, after a pin 200 is inserted into the first through hole 41, the lower end is extended from the first through hole 41, at least a part of the lead 400 can be installed in the first groove 63, and one lead 400 corresponds to and is connected to one pin 200. In this embodiment, by adopting the one-to-one correspondence between the plurality of first through holes 41 and the plurality of first grooves 63, the structural order can be improved.

[0174] It should be noted that the above conditions can be satisfied separately, that is, the second connecting body 66 and the third connecting body 67 are spaced apart in the height direction, or the plurality of first through holes 41 and the plurality of first grooves 63 correspond one by one in the height direction, or both conditions are satisfied at the same time. The specific design can be carried out according to the product demand, and the flexibility is strong.

[0175] According to an embodiment of the present application, the coil former 100 further comprises a blocking portion 50 protruding from the surface of the mounting portion 40 on the side away from the second hammer-shaped portion 30 and 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 can block the metal beads generated during the metal processing of the pin 200 from rolling in the direction of the axis of the first winding portion 10. The blocking portion 50 is detachably connected with the first cover plate 60.

[0176] In some specific embodiments of the present application, the blocking portion 50 comprises a body 51, a first extension 52 and a second extension 53.

[0177] Specifically, the body 51 is located on the side of the first cover plate 60 in the direction close to the axis of the first winding portion 10, and can block the metal beads generated during the metal processing of the pin 200 from rolling in the direction of the axis of the first winding portion 10. For example, the inside of the body 51 is provided with the axis of the first winding portion 10, and the outside of the body 51 is provided with the first through hole 41. After the pin 200 is installed, the body 51 is located between the axis of the first winding portion 10 and at least a part of the pin 200. During the metal processing of the pin 200, for example, during the tin processing, the tin beads are blocked by the body 51 and cannot enter the inside of the gear assembly 500 close to the axis of the first winding portion 10.

[0178] 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.

[0179] 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.

[0180] The second cover plate 70 of this application will be described in detail below with reference to specific embodiments.

[0181] 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.

[0182] 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.

[0183] In other words, the second cover plate 70 is arranged on the side of the first cover plate 60 away from the mounting portion 40, that is, the second cover plate 70 is arranged on the outside of the first cover plate 60, for example, on a projection surface extending in the height direction along the vertical direction and in the width direction along the horizontal direction, the orthographic projection of the second cover plate 70 covers the orthographic projection of the first cover plate 60. In the present embodiment, by arranging the second cover plate 70, the lead wire 400 and the connecting portion between the lead wire 400 and the pin 200 can be shielded, and the aesthetic appearance, structural stability and safety can be improved, and the connecting portion between the lead wire 400 and the pin 200 and the lead wire 400 can be protected from the external environment.

[0184] The second cover plate 70 is detachably connected to the first cover plate 60, and the detachable connection modes include, but are not limited to, clamping, threaded connection, bolt connection, etc.

[0185] In addition, the inner wall surface of the second cover plate 70 opposite to the first cover plate 60 is provided with a plurality of second clamping portions 72 and a plurality of crimping protrusions 74, a second groove 73 is formed between adjacent two second clamping portions 72, or a second groove 73 is formed between the second clamping portion 72 and the edge of the second cover plate 70, the second groove 73 is used to install the connecting portion between the pin 200 and the lead wire 400, and the crimping protrusion 74 is used to abut the lead wire after the second cover plate 70 is installed to the first cover plate 60.

[0186] That is, the second cover plate 70 is arranged on the outside of at least a portion of the first cover plate 60, and the inner side of the second cover plate 70 is provided with the second clamping portion 72 and the crimping protrusion 74. The number of second clamping portions 72 is plural, and a second groove 73 is formed between adjacent two second clamping portions 72. Alternatively, a second groove 73 is formed between the second clamping portion 72 and the edge of the second cover plate 70, for example, a plurality of second clamping portions 72 are distributed in the left-right direction, the leftmost second clamping portion 72 has a second groove 73 with the left edge of the second cover plate 70, and the rightmost second clamping portion 72 has a second groove 73 with the right edge of the second cover plate 70. In the present embodiment, by arranging the second groove 73, the connecting portion between the pin 200 and the lead wire 400 can be installed to the second groove 73, so that the connecting portion can be limited. In addition, after the second cover plate 70 is installed to the first cover plate 60, the crimping protrusion 74 can abut the lead wire 400 to limit the lead wire 400. By installing the second cover plate 70 to the first cover plate 60, an acting force can be applied to the lead wire 400, so that at least a portion of the lead wire 400 is clamped between the crimping protrusion 74 and the first cover plate 60.

[0187] According to one embodiment of the present 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 one 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 plurality of first through holes 41 are distributed along the length direction at intervals.

[0188] That is, the long side of the mounting portion 40 extends along the length direction of itself, the thick side extends along the thickness direction of itself, and the high side extends along the height direction of itself. The length direction is perpendicular to the axial direction of the first winding portion 10, the thickness direction is parallel to one 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.

[0189] In some specific embodiments of the present application, as shown in Figure 14 The second cover plate 70 includes a baffle plate 75 and a connecting plate 76. The baffle plate 75 is located on the side of the first cover plate 60 away from the mounting portion 40. The inner wall of the baffle plate 75 is provided with the second clamping portion 72 and the crimping protrusion 74. The connecting plate 76 is arranged on both sides of the baffle plate 75 in the length direction. The connecting plate 76 cooperates with the baffle plate 75 to form a "door" shape, for example, the baffle plate 75 extends in the up-down direction. At least a portion of the first cover plate 60 is located inside the baffle plate 75. The inner wall of the baffle plate 75 is provided with the second clamping portion 72 and the crimping protrusion 74. The left side and the right side of the baffle plate 75 are respectively provided with the connecting plate 76. The baffle plate 75 and the two connecting plates 76 cooperate to form a "door" shape structure with the opening facing the inside. In addition, the connecting plate 76 is detachably connected with the first cover plate 60. The detachable connection modes herein include but are not limited to clamping, threaded connection, bolt connection, etc. In the present embodiment, by arranging the second clamping portion 72 and the crimping protrusion 74 on the inner wall of the baffle plate 75, it is not only convenient for processing, but also convenient for limiting the lead wire 400. By limiting the connecting plate 76 to cooperate with the baffle plate 75 to form a "door" shape, it is convenient for the assembly between the second cover plate 70 and the first cover plate 60.

[0190] According to one embodiment of the present application, the second cover plate 70 further includes a plurality of limiting protrusions 77. The limiting protrusions 77 are arranged at one end of the baffle plate 75 in a direction parallel to the axis of the first winding portion 10, for example, at the lower end of the baffle plate 75. Adjacent two limiting protrusions 77 are spaced apart to form a limiting groove 78. In the 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 located correspondingly. The lead wire 400 crimped by the crimping protrusion 74 can pass through the limiting groove 78. In the present embodiment, by adopting the limiting groove 78, it is not only convenient for the lead wire 400 to pass through, but also can limit the lead wire 400. At the same time, the interior of the second cover plate 70 can be protected by the limiting protrusions 77.

[0191] In some embodiments of the present application, the thickness of the limiting protrusion 77 and the thickness of the second clamping portion 72 are both greater than the thickness of the crimping protrusion 74 in the thickness direction of the baffle 75, for example, in the front-rear direction, which can avoid excessive stress on the lead 400 during the crimping process of the lead 400, and avoid the thickness of the second cover plate 70 being too high due to the need to accommodate the lead 400.

[0192] According to an embodiment of the present application, the depth of the limiting groove 78 is less than the depth of the second groove 73, which can limit the lead 400 without easily pulling the lead 400 outward from the second groove 73.

[0193] In some embodiments of the present application, the first cover plate 60 includes a first connecting body 65, a second connecting body 66, and a third connecting body 67.

[0194] Specifically, as shown in Figure 11 The second connecting body 66 is provided on the first connecting body 65 and cooperates with the first connecting body 65 to form a first avoiding space 68, the second connecting body 66 is provided with a second through hole 61, and the third connecting body 67 is provided with a plurality of first grooves 63 for limiting the lead 400. For example, the extension direction of the first groove 63 is parallel to the axial direction of the first winding portion 10.

[0195] The baffle 75 is arranged opposite to the second connecting body 66 and the third connecting body 67 in a direction perpendicular to the axis of the first winding portion 10, and the connecting plate 76 is clamped with the second connecting body 66 and the third connecting body 67, respectively.

[0196] That is, the first cover plate 60 of the embodiment of the present application mainly includes the first connecting body 65, the second connecting body 66, and the third connecting body 67, the second connecting body 66 is connected with the first connecting body 65, and the second connecting body 66 and the first connecting body 65 cooperate to form the first avoiding space 68, so that the mounting portion 40 can be avoided through the first avoiding space 68, that is, after the first cover plate 60 is installed, the mounting portion 40 can extend into the first avoiding space 68.

[0197] The second connecting body 66 is provided with the second through hole 61, one end of the pin 200 passes through the second through hole 61 and is connected with the lead 400, and the third connecting body 67 is provided with a plurality of first grooves 63, for example, each first groove 63 extends in a direction parallel to the axis of the first winding portion 10. At least a part of the lead 400 can be installed in the first groove 63, so as to achieve the limiting effect on the lead 400.

[0198] In addition, when the axis direction of the first winding portion 10 is the up-down direction, the second connecting body 66 and the third connecting body 67 can be distributed with intervals along the direction from up to down. Meanwhile, one baffle 75 can be arranged opposite to the second connecting body 66 and the third connecting body 67 in the direction from inside to outside, and the protection for the second connecting body 66, the third connecting body 67, the lead wire 400 and the like can be realized.

[0199] In addition, the connecting plate 76 is clamped with the second connecting body 66 and the third connecting body 67 respectively, and the installation and dismounting are facilitated.

[0200] According to one embodiment of the present application, the first connecting body 65 comprises a first connecting portion 651 and a second connecting portion 652.

[0201] Specifically, the first connecting portion 651 is installed on the side of the mounting portion 40 far away from the first winding portion 10, the first connecting portion 651 extends along the direction parallel to the axis of the first winding portion 10, for example, the first connecting portion 651 extends along the up-down 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, and the second connecting portion 652 is installed on one end of the first connecting portion 651 in the direction parallel to the axis of the first winding portion 10, for example, the second connecting portion 652 is located on the upper end of the first connecting portion 651. The second connecting portion 652 can cooperate with the first connecting portion 651 to form a first avoiding space 68, and the mounting portion 40, at least a part of the pin 200 and the like can be installed in the first avoiding space 68. A part of the second connecting portion 652 protrudes from the outer surface of the first connecting portion 651, for example, the outside of the second connecting portion 652 protrudes from the outer surface of the first connecting portion 651. A part of the second connecting body 66 is connected with the second connecting portion 652, and the two ends of the second connecting body 66 are spaced apart from the second connecting portion 652 in the direction parallel to the axis of the first winding portion 10 and form a gap 69, for example, the upper left side of the second connecting body 66 is spaced apart from the lower surface of the second connecting portion 652, and the upper right side of the second connecting body 66 is spaced apart from the lower surface of the second connecting portion 652. One end of the connecting plate 76 in the direction parallel to the axis of the first winding portion 10 is inserted into the gap 69, for example, a part of the upper end of the connecting plate 76 can be inserted into the gap 69, which not only can improve the protection effect, but also can increase the limitation of the freedom degree of the second cover plate 72.

[0202] In some specific embodiments of the present application, the other end of the connecting plate 76 is located on the outside of the second connecting body 66 in the direction parallel to the axis of the first winding portion 10, for example, a part of the lower end of the connecting plate 76 is located on the outside of the second connecting body 66, which can further improve the protection effect.

[0203] According to one embodiment of the present application, as Figure 13As shown, the crimping protrusion 74 has a plurality of protrusions 741 distributed at intervals, for example, the crimping protrusion 74 extends in the up-down direction, and the surface of the crimping protrusion 74 includes a plurality of protrusions 741 distributed at intervals in the up-down direction. In this embodiment, by adopting a plurality of protrusions 741, the mounting stability of the lead 400 can be improved.

[0204] Further, the extension direction of the crimping protrusion 74 is parallel to the axis direction of the first winding portion 10, and the plurality of protrusions 741 are distributed at intervals in the extension direction of the crimping protrusion 74, which can improve the stability of the lead 400 in the direction parallel to the axis direction of the first winding portion 10. Alternatively, the axial direction of the lead 400 can be parallel to the axis direction of the first winding portion 10, and by adopting the protrusions 741, the movement of the lead 400 in the axial direction thereof can be avoided.

[0205] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood that such examples are for illustrative purposes only and are not intended to limit the scope of the present 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 the present application. The scope of the present application is defined by the appended claims.

Claims

1. A coil former (100) characterized by, The coil skeleton (100) comprises: a first winding portion (10) in a columnar shape, the first winding portion (10) being used for winding a winding wire; a first mace-shaped portion (20) arranged at one end of the first winding portion (10) in an axial direction, and a second mace-shaped portion (30) arranged at the other end of the first winding portion (10) in the axial direction; a mounting portion (40) arranged at an outer periphery of the first mace-shaped portion (20), the mounting portion (40) being provided with a first through hole (41) for mounting a pin (200); a blocking portion (50) protruding from a surface of the mounting portion (40) on a side away from the second mace-shaped portion (30) and located on a side of the first through hole (41) close to an axis of the first winding portion (10), the blocking portion (50) being capable of blocking metal beads generated during metal processing of the pin (200) from rolling in a direction of the axis of the first winding portion (10).

2. The coil former (100) of claim 1, characterized in that The mounting portion (40) has a length direction, a thickness direction and a height direction, the length direction being perpendicular to the axial direction of the first winding portion (10), the thickness direction being parallel to the radial direction of the first winding portion (10), and the height direction being parallel to the axial direction of the first winding portion (10).

3. The coil former (100) according to claim 1 or 2, characterized in that The blocking portion (50) is a solid structure, and / or the blocking portion (50) is in a flat plate shape.

4. The coil former (100) of claim 2, characterized in that The first through hole (41) is in a plurality, and the plurality of first through holes (41) are distributed at intervals in the length direction of the mounting portion (40), and an edge of the blocking portion (50) exceeds a position of an outermost first through hole (41).

5. The coil former (100) according to claim 2 or 4, characterized in that In the length direction of the mounting portion (40), the length of the blocking portion (50) is not less than the length of the mounting portion (40).

6. The coil former (100) of claim 1, characterized by The blocking portion (50) and the mounting portion (40) are an integral molded part.

7. The coil former (100) of claim 6, characterized in that The first mace-shaped portion (20), the blocking portion (50) and the mounting portion (40) are an integral molded part, or the first mace-shaped portion (20), the first winding portion (10), the blocking portion (50) and the mounting portion (40) are an integral molded part.

8. A coil assembly characterized by, The coil skeleton (100) comprises: a pin (200); a motor skeleton comprising the coil skeleton (100) according to any one of claims 1-7, the pin (200) being mounted in the first through hole (41) of the coil skeleton (100).

9. The coil assembly of claim 8, wherein, The motor skeleton comprises: a first skeleton, which is the coil skeleton (100); a second skeleton (300) connected with the first skeleton.

10. An electric machine characterized by The coil assembly comprises: the coil assembly according to claim 8 or 9; a gear assembly (500), at least a part of the gear assembly (500) being located on one side of the blocking portion (50), and the pin (200) being located on the other side of the blocking portion (50).

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