Motor wiring assembly and motor

Abstract

The invention provides a motor wiring assembly and a motor, the motor wiring assembly comprises a skeleton, a wiring sheath and a lug plate, the lug plate is installed on the skeleton, the wiring sheath is installed on the skeleton, the lug plate comprises a wire-passing bending structure, the wire-passing bending structure is bent towards the skeleton, and the wire-passing bending structure is bent towards the skeleton. The wiring sheath comprises a wire pressing push rod structure, the wire pressing push rod structure protrudes towards the wire passing bending structure, and the wire pressing push rod structure can tightly press part of the varnished wire on the wire passing bending structure. According to the invention, the reliable fixation of the enameled wire on the lug plate bonding pad can be realized, the enameled wire can be reliably fixed at the position of the lug plate bonding pad for laser enameled leather removal and soldering tin removal, and the problems of low production efficiency and complex process of a lug plate assembly scheme in the prior art are effectively solved; and the problems of poor compatibility and cold solder joint of the aluminum wire of the existing wiring needle can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a motor wiring assembly and a motor. Background Art

[0002] At present, most plastic-encapsulated DC motors use terminal pins or terminal lugs with corresponding frames and terminal sheaths to realize the electrical lead-out of the motor stator winding enameled wire. For motors with different voltage, power, and cost requirements, enameled wires of different materials (copper or aluminum) and different wire diameters are required. Although the terminal pin structure solution is convenient for wiring and welding, it is only suitable for small-diameter copper enameled wires. Large-diameter wires require greater winding tension, which is more likely to cause the terminal pins to be bent, resulting in production abnormalities. If the enameled wire is made of aluminum wire, there will be problems such as cold welding, which will ultimately affect the motor production efficiency and quality; the terminal lug structure solution, although the compatibility is improved, has many problems such as complex processes, low efficiency, and unreliable welding.

[0003] Since the motor in the prior art uses a terminal piece with a corresponding frame and a terminal sheath to realize the electrical lead-out of the motor stator winding enameled wire, there are technical problems such as complex procedures and low efficiency. Therefore, the present invention studies and designs a motor wiring assembly and a motor. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of complex process and low efficiency in the prior art that the motor uses terminal pieces with corresponding frames and terminal sheaths to realize the electrical lead-out of the motor stator winding enameled wire, thereby providing a motor terminal assembly and a motor.

[0005] In order to solve the above problems, the present invention provides a motor wiring assembly, which includes:

[0006] A skeleton, a wiring sheath and a wiring piece, wherein the wiring piece is mounted on the skeleton, the wiring sheath is mounted on the skeleton, the wiring piece includes a wire-passing bending structure, the wire-passing bending structure is bent toward the skeleton, the wiring sheath includes a wire-pressing push rod structure, the wire-pressing push rod structure protrudes toward the wire-passing bending structure, and the wire-pressing push rod structure can press a partial section of the enameled wire onto the wire-passing bending structure.

[0007] In some embodiments,

[0008] The wiring piece also includes a wiring pad and a wire-passing bending structure, one end of the wire-passing bending structure is connected to the wiring pad, and the other end is bent toward the direction of the skeleton, the wiring sheath also includes a sheath main board, one end of the wire pressing push rod structure is connected to the sheath main board, and the other end is opposite to the wire-passing bending structure and protrudes toward the wire-passing bending structure, and the other end of the wire pressing push rod structure can press a partial section of the enameled wire onto the wire-passing bending structure.

[0009] In some embodiments,

[0010] The wire pressing push rod structure presses a partial segment of the enameled wire onto the upper end surface of the wire passing bending structure from top to bottom, the upper end surface of the wire passing bending structure is a first inclined surface that is not parallel to the horizontal plane, one end of the first inclined surface is connected to the wiring pad, and the other end extends downwardly in an inclined direction, and the lower end surface of the wire pressing push rod structure is also formed as a second inclined surface inclined to the horizontal plane, the first inclined surface is parallel to the second inclined surface, and a partial segment of the enameled wire can be clamped therebetween.

[0011] In some embodiments,

[0012] The wiring piece also includes a main wiring piece, which includes a wiring piece lead-out end and a skeleton connection end, a partial structure of the upper end of the skeleton connection end is connected to the wiring piece lead-out end, a partial structure of the upper end of the skeleton connection end is connected to the wiring pad, and a wiring piece mounting groove is provided at the upper end of the skeleton, and the lower end of the skeleton connection end can be inserted into the wiring piece mounting groove.

[0013] In some embodiments,

[0014] The wiring sheath is also provided with a plug-in through hole on the sheath main board. The wiring sheath is installed from top to bottom above the wiring piece so that the lead-out end of the wiring piece is inserted upward into the plug-in through hole to form a connection between the wiring sheath and the wiring piece.

[0015] In some embodiments,

[0016] A wire cutting edge of a terminal lug is provided on one end of the terminal pad away from the wire bending structure, and the terminal sheath also includes a wire cutting push rod structure connected to the sheath main board, and the wire cutting push rod structure can be installed from top to bottom to the side end surface of the terminal pad where the wire cutting edge of the terminal lug is provided, so as to cut the enameled wire through the wire cutting edge of the terminal lug and the wire cutting push rod structure.

[0017] In some embodiments,

[0018] One end of the wire cutting push rod structure is connected to the sheath main board, and the other side protrudes out in the direction of the frame, and the protruding free end of the wire cutting push rod structure is also provided with a guide groove. During the movement of the wire cutting push rod structure from top to bottom, the guide groove can be opposite to the wire cutting edge of the wiring piece in the horizontal direction.

[0019] In some embodiments,

[0020] The two sides of the guide groove are guide limit posts, and the guide groove is formed between the two guide limit posts. The guide limit posts protrude in the direction toward the frame, and the guide groove is recessed in the direction away from the frame. The bottom of the guide groove is also provided with a cutting line pressure block protruding in the direction of the frame.

[0021] In some embodiments,

[0022] The wire cutting edge of the connection piece passes through from the upper end surface of the connection pad to the lower end surface, or the wire cutting edge of the connection piece extends downward from the upper end surface of the connection pad to the lower end surface that does not pass through the connection pad.

[0023] In some embodiments,

[0024] The sheath main board is provided with a wire welding window between the wire cutting push rod structure and the wire pressing push rod structure. The wire welding window is a groove structure that passes through from top to bottom. The wire welding window is located directly above the wiring pad, and an enameled wire is arranged on the wiring pad for wire passing.

[0025] In some embodiments,

[0026] The frame is also provided with a frame wire outlet groove, and the wire cutting edge of the wiring piece faces the frame wire outlet groove.

[0027] In some embodiments,

[0028] The skeleton is also provided with a boss, an inner wire groove and an outer wire groove. The inner wire groove and the outer wire groove are separated by the boss. The wire bending structure faces the inner wire groove and the outer wire groove. At least one enameled wire can be led to the wire bending structure through the inner wire groove, and at least one enameled wire can also be led to the wire bending structure through the outer wire groove.

[0029] The present invention also provides a motor, which comprises the above-mentioned motor wiring assembly.

[0030] The motor wiring assembly and the motor provided by the present invention have the following beneficial effects:

[0031] 1. The present invention provides a wiring piece to include a wire-passing bending structure, which is bent toward the direction of the frame, and the wiring sheath includes a wire pressing push rod structure, which protrudes toward the wire-passing bending structure, so that a portion of the enameled wire can be passed through the wire-passing bending structure for leading, and the wire pressing push rod structure can press the portion of the enameled wire onto the wire-passing bending structure, so that when the wire-passing bending structure of the wiring piece and the wire pressing push rod structure of the wiring sheath are assembled, the pressure applied by the wiring sheath to press down the assembly can realize the reliable fixation of the enameled wire on the wiring piece pad, and the enameled wire can be reliably fixed at the wiring piece pad position for laser paint removal and soldering. Compared with the prior art, without increasing the number of parts, the production efficiency, precision and product quality are improved, and the related cost investment such as equipment maintenance can be reduced, thereby effectively solving the problems of low production efficiency and complicated process of the wiring piece assembly scheme in the prior art, and can also solve the problems of poor compatibility and aluminum wire cold soldering in the existing wiring pins.

[0032] 2. The present invention also provides a wire cutting edge for a wiring piece on one end of the wiring pad away from the wire passing bending structure, and the wiring sheath also includes a wire cutting push rod structure connected to the sheath main board, and the wire cutting push rod structure can be installed from top to bottom to the side end surface of the wiring pad where the wire cutting edge of the wiring piece is provided, so as to cut the enameled wire through the wire cutting edge of the wiring piece and the wire cutting push rod structure, so that the enameled wire can be automatically cut while the wiring sheath is installed in place, that is, the enameled wire is cut off while the wiring sheath is installed in place, thereby realizing automatic wire cutting, which can further improve production efficiency, precision and product quality, and reduce related cost investment such as equipment maintenance, further solving the problems of low production efficiency and complex process of the wiring piece assembly scheme in the prior art.

[0033] 3. The present invention further provides a convex column, an inner wire groove and an outer wire groove on the skeleton, the inner wire groove and the outer wire groove are separated by the convex column, the wire bending structure faces the inner wire groove and the outer wire groove, at least one enameled wire can be led to the wire bending structure through the inner wire groove, and at least one enameled wire can be led to the wire bending structure through the outer wire groove, so as to realize a layered structure of the skeleton and realize layered and parallel wire passing of the enameled wires at the common end, prevent the enameled wires from crossing before welding, improve the welding quality, and solve the problems of unreliable welding and poor welding of aluminum wires caused by insufficient paint removal due to crossing or overlapping of enameled wires in the existing solution; the present invention also designs a welding wire window structure through the wiring sheath, and the welding wire window is located directly above the wiring pad, which can be used to provide sufficient laser soldering space to further improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a structural diagram of the motor wiring assembly of the present invention after assembly;

[0035] Figure 2 is an exploded structural diagram of the motor wiring assembly of the present invention;

[0036] Figure 3 is a three-dimensional structural diagram of the skeleton in the motor wiring assembly of the present invention;

[0037] Figure 4 yes Figure 3 A top view of the structure;

[0038] Figure 5 It is a schematic diagram of a wiring sheath in a motor wiring assembly of the present invention in a first direction;

[0039] Figure 6 is a schematic diagram of a wiring sheath in a motor wiring assembly of the present invention in a second direction;

[0040] Figure 7 is a schematic top view of a wiring sheath in a motor wiring assembly of the present invention;

[0041] Figure 8 It is a three-dimensional structural diagram of a terminal piece in a motor terminal assembly of the present invention;

[0042] Fig. 9 yes Figure 8 A top view of the structure;

[0043] Fig.10 It is a winding structure diagram of the motor wiring assembly of the present invention after assembly is completed;

[0044] Fig.11 yes Fig.10 Top view of the .

[0045] The reference numerals are:

[0046] 1. Frame; 11. Lug mounting slot; 12. Boss; 13. Wire slot inside the frame; 14. Wire slot outside the frame; 15. Wire outlet slot of the frame; 2. Wiring sheath; 21. Sheath main board; 22. Wire pressing push rod structure; 23. Wire cutting push rod structure; 24. Guide slot; 25. Guide limit column; 26. Wire cutting block; 27. Insert through hole; 28. Wire welding window; 3. Lug; 31. Wiring pad; 32. Wire bending structure; 33. Wire cutting edge of lug; 34. Wiring main sheet; 341. Lug lead-out terminal; 342. Frame connection terminal; 4. Enameled wire. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0053] like Figure 1-11 As shown, the present invention provides a motor wiring assembly, which includes:

[0054] A skeleton 1, a wiring sheath 2 and a wiring lug 3, wherein the wiring lug 3 is mounted on the skeleton 1, the wiring sheath 2 is mounted on the skeleton 1, the wiring lug 3 includes a wire-passing bending structure 32, the wire-passing bending structure 32 is bent toward the skeleton 1, the wiring sheath 2 includes a wire-pressing push rod structure 22, the wire-pressing push rod structure 22 protrudes toward the wire-passing bending structure 32, and the wire-pressing push rod structure 22 can press a partial section of the enameled wire 4 onto the wire-passing bending structure 32.

[0055] The present invention arranges the terminal piece to include a wire-passing bending structure, which is bent toward the direction of the skeleton, and the terminal sheath includes a wire-pressing push rod structure, which protrudes toward the wire-passing bending structure, so that a partial section of the enameled wire can be led through the wire-passing bending structure, and the wire-pressing push rod structure can press the partial section of the enameled wire onto the wire-passing bending structure, so that when the wire-passing bending structure of the terminal piece and the wire-pressing push rod structure of the terminal sheath are assembled, the pressure applied by the downward pressing assembly of the terminal sheath can realize the reliable fixation of the enameled wire on the terminal piece pad, and the enameled wire can be reliably fixed at the position of the terminal piece pad for laser paint removal and soldering. Compared with the prior art, without increasing the number of parts, the production efficiency, precision and product quality are improved, and the relevant cost investment such as equipment maintenance can be reduced, thereby effectively solving the problems of low production efficiency and complicated process of the terminal piece assembly scheme in the prior art, and can also solve the problems of poor compatibility and aluminum wire cold soldering in the existing terminal pins.

[0056] In some embodiments,

[0057] The terminal piece 3 also includes a terminal welding pad 31 and a wire-passing bending structure 32, one end of the wire-passing bending structure 32 is connected to the terminal welding pad 31, and the other end is bent toward the direction of the skeleton 1, and the terminal sheath 2 also includes a sheath main board 21, one end of the wire pressing push rod structure 22 is connected to the sheath main board 21, and the other end is opposite to the wire-passing bending structure 32 and protrudes toward the wire-passing bending structure 32, and the other end of the wire pressing push rod structure 22 can press a partial section of the enameled wire 4 onto the wire-passing bending structure 32.

[0058] This is the preferred structural form of the terminal block of the present invention. The enameled wire can be welded at this location through the terminal pad. The wire bending structure is connected to the terminal pad and is bent in the direction of the skeleton. At the same time, the terminal sheath includes a sheath main board, and the wire pressing push rod structure can be arranged on the sheath main board. The wire pressing push rod structure protrudes toward the wire bending structure, so that the enameled wire can be effectively pressed against the wire bending structure to form a reliable fixation of the enameled wire. The enameled wire is further fixed at the terminal block pad position for laser paint removal and soldering, which can improve production efficiency and reduce complicated processes.

[0059] In some embodiments,

[0060] The wire pressing push rod structure 22 presses a partial segment of the enameled wire 4 onto the upper end surface of the wire passing bending structure 32 from top to bottom. The upper end surface of the wire passing bending structure 32 is a first inclined surface that is not parallel to the horizontal plane. One end of the first inclined surface is connected to the wiring pad 31, and the other end extends downwardly. The lower end surface of the wire pressing push rod structure 22 is also formed as a second inclined surface inclined to the horizontal plane. The first inclined surface is parallel to the second inclined surface, and a partial segment of the enameled wire 4 can be clamped therebetween.

[0061] This is a further preferred structural form of the wire pressing push rod structure and the wire passing bending structure of the present invention, that is, the wire pressing push rod structure is located at the upper end of the wire passing bending structure, and presses the enameled wire from top to bottom onto the first inclined surface of the wire passing bending structure. Since the wire passing bending structure has a first inclined surface inclined to the horizontal plane, the wire pressing push rod structure has a second inclined surface inclined to the horizontal plane at the lower end, and the two inclined surfaces are parallel, so that the two parallel inclined surfaces can press the enameled wire therebetween, forming a fit between the enameled wire on both sides, thereby improving the pressing effect, and through the two inclined surfaces inclined to the horizontal plane, the enameled wire can be further prevented from sliding in the horizontal direction and / or vertical direction, thereby improving the fixing effect of the enameled wire, and further improving the production efficiency of the motor wiring assembly.

[0062] The wiring sheath and the wiring piece of the present invention are used to realize the electrical connection and lead-out of the three-phase winding of the plastic-sealed stator of the DC motor. The wiring sheath is designed with a wire pressing push rod structure, a limit wire cutting push rod structure, and a welding wire window structure (such as Figure 5-7 ), the terminal block is designed with a wire bending structure and a wire cutting edge structure (such as Figure 8-9 The wire bending structure of the terminal lug and the wire pressing push rod structure of the terminal sheath realize the reliable fixation of the enameled wire on the terminal lug pad through the pressure applied by the downward pressure assembly of the terminal sheath. In addition to the supporting and fixing effect on the enameled wire, the bending structure also uses the principle of bending transition to prevent the enameled wire from contacting the edge of the terminal lug to generate stress concentration and thus damage the enameled wire, thereby improving production quality.

[0063] In some embodiments,

[0064] The terminal block 3 also includes a terminal main block 34, which includes a terminal block lead-out terminal 341 and a skeleton connection terminal 342, a partial structure of the upper end of the skeleton connection terminal 342 is connected to the terminal block lead-out terminal 341, a partial structure of the upper end of the skeleton connection terminal 342 is connected to the terminal pad 31, and a terminal block mounting groove 11 is provided at the upper end of the skeleton 1, and the lower end of the skeleton connection terminal 342 can be inserted into the terminal block mounting groove 11.

[0065] The present invention also adopts the structure of the wiring main piece, which includes a wiring piece lead-out end and a skeleton connecting end, so that the wiring piece lead-out end can be used for lead-out wire function, and the skeleton connecting end is used to be connected and fixed to the skeleton at the lower end, and the wiring pad is connected and fixed to the upper end of the partial structure of the skeleton connecting end, which can form a welding of the enameled wire, and at the same time, the enameled wire is fixed by using the wire bending structure on the wiring pad, thereby improving welding reliability and improving the assembly efficiency and production efficiency of the motor wiring assembly.

[0066] In some embodiments,

[0067] The wiring sheath 2 is also provided with a plug-in hole 27 on the sheath main board 21. The wiring sheath 2 is installed from top to bottom above the wiring lug 3 so that the wiring lug lead-out end 341 is inserted upward into the plug-in hole 27 to form a connection between the wiring sheath 2 and the wiring lug 3.

[0068] The present invention further preferably allows the lead-out end of the wiring piece to be inserted upward through the inserting hole on the main shield plate, thereby achieving effective connection between the wiring shield and the wiring piece, and can be reliably used for lead-out wires.

[0069] In some embodiments,

[0070] A wire cutting edge 33 is provided on the end of the wiring pad 31 away from the wire bending structure 32. The wiring sheath 2 also includes a wire cutting push rod structure 23 connected to the sheath main board 21. The wire cutting push rod structure 23 can be installed from top to bottom to the side end surface of the wiring pad 31 where the wire cutting edge 33 of the wire is provided, so as to cut the enameled wire 4 through the wire cutting edge 33 of the wire lug and the wire cutting push rod structure 23.

[0071] The present invention also provides a wire cutting edge for a wiring piece on one end of the wiring pad away from the wire passing bending structure, and the wiring sheath also includes a wire cutting push rod structure connected to the sheath main board, and the wire cutting push rod structure can be installed from top to bottom to the side end surface of the wiring pad where the wire cutting edge of the wiring piece is provided, so as to cut the enameled wire through the wire cutting edge of the wiring piece and the wire cutting push rod structure, so that the enameled wire can be automatically cut while the wiring sheath is installed in place, that is, the enameled wire is cut off while the wiring sheath is installed in place, thereby realizing automatic wire cutting, which can further improve production efficiency, precision and product quality, and reduce related cost investment such as equipment maintenance, further solving the problems of low production efficiency and complex process of the wiring piece assembly scheme in the prior art.

[0072] In some embodiments,

[0073] One end of the wire cutting push rod structure 23 is connected to the sheath main board 21, and the other side protrudes toward the direction of the frame 1, and the protruding free end of the wire cutting push rod structure 23 is also provided with a guide groove 24. During the movement of the wire cutting push rod structure 23 from top to bottom, the guide groove 24 can be horizontally opposite to the wire cutting edge 33 of the wiring piece.

[0074] This is a further preferred structural form of the wire cutting push rod structure of the present invention, that is, the protruding free end of its lower end is also provided with a guide groove, which can guide the enameled wire lead, and through the guide groove, the wire cutting edge of the wiring piece can be horizontally opposite to the wire cutting edge of the wiring piece during the movement of the wire cutting push rod structure, so that the enameled wire can enter the guide groove after passing through the wire cutting edge of the wiring piece, and the wire cutting push rod structure can effectively achieve the effect of automatically cutting the enameled wire by moving downward.

[0075] In some embodiments,

[0076] The two sides of the guide groove 24 are guide limit posts 25, and the guide groove 24 is formed between the two guide limit posts 25. The guide limit posts 25 protrude in the direction toward the frame 1, and the guide groove 24 is recessed in the direction away from the frame 1.

[0077] The bottom of the guide groove 24 is further provided with a wire cutting pressing block 26 protruding toward the frame 1 .

[0078] The guide groove of the present invention is preferably formed by clamping the guide limit grooves on both sides. The present invention further preferably provides a wire cutting block at the bottom of the guide groove, which can cooperate with the wire cutting edge of the wiring piece to achieve the function of automatic wire cutting of the enameled wire.

[0079] The wire cutting push rod structure of the wiring sheath limiting position can generate force between the enameled wire and the cutting edge after the wire is fixed by the assembly and pressing action, so that the enameled wire is cut off when the wiring sheath is installed in place, thereby realizing automatic wire cutting; wherein the wire cutting push rod limiting position is composed of two parts, and the guide limiting columns (such as Figure 5-7 ), the purpose is to accurately position the enameled wire to the wire cutting edge structure position of the terminal piece, and the wire cutting block in the middle of the guide limit column is used to apply extrusion force to the enameled wire in the direction of the wiring edge.

[0080] In some embodiments,

[0081] The wiring piece cutting edge 33 penetrates from the upper end surface to the lower end surface of the wiring pad 31 , or the wiring piece cutting edge 33 extends downward from the upper end surface of the wiring pad 31 to the lower end surface without penetrating the wiring pad 31 .

[0082] This is the preferred structural form of the wire cutting edge of the wiring piece of the present invention. It can penetrate the wiring pad up and down to form a through groove, or it can be a blind groove opened at the upper end facing downward. Both can cooperate with the wire cutting push rod structure to form a wire cutting effect. The present invention preferably uses a blind groove that does not penetrate the lower end, and its wire cutting effect is better.

[0083] In some embodiments,

[0084] The sheath main board 21 is provided with a welding wire window 28 between the wire cutting push rod structure 23 and the wire pressing push rod structure 22. The welding wire window 28 is a groove structure that passes through from top to bottom. The welding wire window 28 is located directly above the wiring pad 31, and the enameled wire 4 is arranged on the wiring pad 31 for wire passing.

[0085] The present invention also designs a welding wire window structure through the wiring sheath. The welding wire window is located directly above the wiring pad and can be used to provide sufficient laser soldering space to further improve the welding quality.

[0086] In some embodiments,

[0087] The frame 1 is further provided with a frame wire outlet groove 15 , and the wire cutting edge 33 of the wiring piece faces the frame wire outlet groove 15 .

[0088] The present invention also uses the frame wire outlet groove on the frame so that the wire cutting edge of the connection piece faces the frame wire outlet groove, and the wire can be effectively led out through the frame wire outlet groove after the wire is cut.

[0089] In some embodiments,

[0090] The skeleton 1 is also provided with a boss 12, an inner wire groove 13 and an outer wire groove 14. The inner wire groove 13 and the outer wire groove 14 are separated by the boss 12. The wire bending structure 32 faces the inner wire groove 13 and the outer wire groove 14. At least one enameled wire 4 can be led to the wire bending structure 32 through the inner wire groove 13, and at least one enameled wire 4 can also be led to the wire bending structure 32 through the outer wire groove 14.

[0091] The present invention also provides a convex column, an inner wire groove and an outer wire groove on the skeleton, the inner wire groove and the outer wire groove are separated by the convex column, the wire bending structure faces the inner wire groove and the outer wire groove, at least one enameled wire can be led to the wire bending structure through the inner wire groove, and at least one enameled wire can be led to the wire bending structure through the outer wire groove, so as to realize a layered structure of the skeleton and realize layered and parallel wire passing of the enameled wires at the common end, prevent the enameled wires from crossing before welding, improve the welding quality, and solve the problems of unreliable welding and cold welding of aluminum wires caused by insufficient paint removal due to crossing or overlapping of enameled wires in the existing solution.

[0092] The combined structure of the skeleton, wiring sheath and wiring piece designed in the present invention, the wire-passing bending structure of the wiring piece and the wire-pressing push rod structure of the wiring sheath realize the reliable fixation of the enameled wire on the welding pad of the wiring piece through the pressure applied by the wiring sheath downward pressing assembly; the wiring sheath limiting wire-cutting push rod structure generates a force between the enameled wire and the cutting edge after the wire-passing is fixed through the assembly downward pressing action, so that the enameled wire is cut off at the same time when the wiring sheath is installed in place, thereby realizing automatic wire cutting (firstly, the enameled wire is pressed down by the wire-pressing push rod structure, and then the wire is cut by the wire-cutting push rod structure. Compared with the prior art of wire cutting by manual or equipment, the present invention can realize automatic wire cutting); wherein the skeleton has an inner and outer double-layer wire-passing groove structure, the inner wire-passing groove has a small wire-passing radius and a high position, and the outer wire-passing groove has a large wire-passing outer radius and a low position, so that the double-wire enameled wire at the common end of the motor stator can realize layered parallel wire passing; the wiring sheath is designed with a welding wire window structure to provide sufficient laser soldering space.

[0093] The combined structure of the frame, wiring sheath and wiring piece designed by the present invention (such as Figure 1 , Figure 2 ), through the structural design and combined assembly of each part, it can realize multiple functions such as enameled wire fixing, automatic wire cutting and parallel wire passing. The wiring lug is made of alloy material with good wire performance, and the wiring sheath and frame are made of plastic materials such as nylon. The functions and matching methods of each part are as follows:

[0094] The main function of the skeleton is to support the winding and wire passing of the enameled wire. Two wire passing grooves are designed on the wire inlet side of the skeleton (such as Figure 3-4 ), the wire groove inside the frame is used for the wire passing of the enameled wire that does not need to be cut at the common end of the motor (the wire enters from the wire groove inside the frame and exits from the wire groove outside the frame), and the wire groove outside the frame is used for the three-phase lead-out wire and the wire passing of the part that needs to be cut at the common end of the motor; in the case of a double-wire winding that has both cut and uncut wires at the common end of the motor, the different wire outer diameter sizes and height difference designs of the two wire grooves are used to achieve layered parallel routing of the enameled wire (such as Figure 10-11), avoiding the crossover of the traditional solution, so that the maximum area can be covered by the laser during the subsequent laser paint stripping, improving the subsequent laser welding quality.

[0095] The present invention also provides a motor, which comprises the above-mentioned motor wiring assembly.

[0096] The present invention designs a combined structure of a skeleton, a wiring sheath, and a wiring piece. Through the structural coordination of the wiring sheath and the wiring piece, the wiring sheath is installed in place and the enameled wire is automatically cut, and the enameled wire is reliably fixed at the welding pad position of the wiring piece for laser paint removal and soldering. Compared with the prior art, the production efficiency, precision and product quality are improved without increasing the number of parts and components, and the related cost investment such as equipment maintenance can be reduced; the skeleton layered structure realizes the layered and parallel wire passing of the common end enameled wire, prevents the enameled wire from crossing before welding, and improves the welding quality.

[0097] 1. The present invention is aimed at the existing terminal pin wiring assembly, and can solve the problems of poor compatibility and poor soldering of aluminum wires in the existing terminal pin related solutions (the existing terminal post wiring can only be used for small wire diameters, and for large wire diameters, there will be bending, resulting in poor compatibility);

[0098] 2. The present invention can solve the problems of low production efficiency and unreliable welding in existing lug-related solutions (the existing lug wiring solution requires manual pressing and bending of the structure, and requires manual inspection, resulting in low efficiency;

[0099] 3. The present invention can also solve the problem of unreliable welding by layered parallel routing.

[0100] The specific production and assembly process of the motor of the present invention is as follows:

[0101] 1. Install the frame onto the stator core, and then install the lugs onto the three-phase lead-out terminals and common terminals corresponding to the frame;

[0102] 2. The stator is assembled on the automated winding equipment and winding begins. The winding of the three-phase winding will be completed in sequence (the specific order is: U phase (first phase lead-out terminal) - common terminal - V phase (second phase lead-out terminal) - W phase (third phase lead-out terminal) - common terminal). There is no need to cut the wire between the first two phases of the common terminal. After winding the first phase, the wire will be fed in from the inner wire slot of the skeleton at the common section position, and the wire will be discharged from the wire outlet slot of the skeleton to wind the second and third phase windings. After the third phase winding is wound, the wire will be fed in from the outer wire slot of the skeleton at the common terminal position for the second time to achieve layered parallel wire passing;

[0103] 3. Assemble the outlet sheath with the three-phase lead-out terminal and the common terminal lug. Through the structural coordination between the outlet sheath and the lug, automatic wire cutting is achieved, and the enameled wire is fixed at the lug pad position.

[0104] 4. The equipment completes the laser paint removal and laser welding process through the wiring sheath welding window position;

[0105] 5. After soldering is completed, the stator is injection molded into a circle to finally complete the assembly of the motor.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A motor wiring assembly, characterized in that: include: A frame (1), a wiring sheath (2) and a wiring lug (3), wherein the wiring lug (3) is mounted on the frame (1), the wiring sheath (2) is mounted on the frame (1), the wiring lug (3) comprises a wire-passing bending structure (32), the wire-passing bending structure (32) is bent toward the frame (1), the wiring sheath (2) comprises a wire-pressing push rod structure (22), the wire-pressing push rod structure (22) protrudes toward the wire-passing bending structure (32), and the wire-pressing push rod structure (22) can press a portion of an enameled wire (4) onto the wire-passing bending structure (32).

2. The motor connection assembly according to claim 1, characterized in that: The wiring piece (3) further comprises a wiring pad (31) and a wire-passing bending structure (32); one end of the wire-passing bending structure (32) is connected to the wiring pad (31) and the other end is bent toward the direction of the frame (1); the wiring sheath (2) further comprises a sheath main board (21); one end of the wire-pressing push rod structure (22) is connected to the sheath main board (21) and the other end is opposite to the wire-passing bending structure (32) and protrudes toward the wire-passing bending structure (32); the other end of the wire-pressing push rod structure (22) can press a portion of the enameled wire (4) onto the wire-passing bending structure (32).

3. The motor connection assembly according to claim 2, characterized in that: The wire pressing push rod structure (22) presses a partial section of the enameled wire (4) onto the upper end surface of the wire passing bending structure (32) from top to bottom, the upper end surface of the wire passing bending structure (32) is a first inclined surface that is not parallel to the horizontal plane, one end of the first inclined surface is connected to the wiring pad (31), and the other end extends downwardly in an inclined direction, and the lower end surface of the wire pressing push rod structure (22) is also formed into a second inclined surface that is inclined to the horizontal plane, the first inclined surface is parallel to the second inclined surface, and the partial section of the enameled wire (4) can be clamped therebetween.

4. The motor connection assembly according to claim 2, characterized in that: The terminal block (3) further comprises a terminal main block (34), the terminal main block (34) comprising a terminal block lead-out terminal (341) and a skeleton connection terminal (342), a partial structure at the upper end of the skeleton connection terminal (342) being connected to the terminal block lead-out terminal (341), a partial structure at the upper end of the skeleton connection terminal (342) being connected to the terminal pad (31), a terminal block mounting groove (11) being provided at the upper end of the skeleton (1), and a lower end of the skeleton connection terminal (342) being capable of being inserted into the terminal block mounting groove (11).

5. The motor connection assembly according to claim 4, characterized in that: The sheath main board (21) of the wiring sheath (2) is also provided with an insert plate through hole (27), and the wiring sheath (2) is installed from top to bottom above the wiring lug (3), so that the wiring lug lead end (341) is inserted upward into the insert plate through hole (27), so that the wiring sheath (2) and the wiring lug (3) are connected.

6. The motor connection assembly according to claim 2, characterized in that: A wire cutting edge (33) is provided on one end of the wiring pad (31) away from the wire bending structure (32); the wiring sheath (2) further comprises a wire cutting push rod structure (23) connected to the sheath main board (21); the wire cutting push rod structure (23) can be installed from top to bottom to the side end surface of the wiring pad (31) where the wire cutting edge (33) is provided, so as to cut the enameled wire (4) through the wire cutting edge (33) and the wire cutting push rod structure (23).

7. The motor connection assembly according to claim 6, characterized in that: One end of the wire cutting push rod structure (23) is connected to the sheath main board (21), and the other end protrudes toward the direction of the frame (1), and the protruding free end of the wire cutting push rod structure (23) is also provided with a guide groove (24). During the movement of the wire cutting push rod structure (23) from top to bottom, the guide groove (24) can be opposite to the wire cutting edge (33) of the wiring piece in the horizontal direction.

8. The motor connection assembly according to claim 7, characterized in that: The two sides of the guide groove (24) are guide limit posts (25), and the guide groove (24) is formed between the two guide limit posts (25). The guide limit posts (25) protrude in a direction toward the frame (1), and the guide groove (24) is recessed in a direction away from the frame (1); The bottom of the guide groove (24) is also provided with a wire cutting pressing block (26) protruding in the direction of the frame (1).

9. The motor connection assembly according to claim 6, characterized in that: The wiring piece wire cutting edge (33) passes through from the upper end surface of the wiring pad (31) to the lower end surface, or the wiring piece wire cutting edge (33) extends downward from the upper end surface of the wiring pad (31) to the lower end surface that does not pass through the wiring pad (31).

10. The motor terminal assembly according to claim 6, characterized in that: The sheath main board (21) is also provided with a welding wire window (28) between the wire cutting push rod structure (23) and the wire pressing push rod structure (22); the welding wire window (28) is a groove structure that passes through from top to bottom; the welding wire window (28) is located directly above the wiring pad (31); and the enameled wire (4) is arranged on the wiring pad (31) for passing the wire.

11. The motor connection assembly according to any one of claims 6 to 10, characterized in that: The frame (1) is also provided with a frame wire outlet groove (15), and the wire cutting edge (33) of the connection piece faces the frame wire outlet groove (15).

12. The motor connection assembly according to any one of claims 1 to 11, characterized in that: The frame (1) is also provided with a convex column (12), an inner frame wire groove (13) and an outer frame wire groove (14); the inner frame wire groove (13) and the outer frame wire groove (14) are separated by the convex column (12); the wire bending structure (32) faces the inner frame wire groove (13) and the outer frame wire groove (14); at least one enameled wire (4) can be led to the wire bending structure (32) through the inner frame wire groove (13); and at least one enameled wire (4) can also be led to the wire bending structure (32) through the outer frame wire groove (14).

13. A motor, characterized in that: The motor connection assembly comprises the motor connection assembly according to any one of claims 1 to 12.

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