A multi-row winding device for motor stator coils

Abstract

The present invention belongs to the technical field of motor coil winding, and in particular relates to a multi-row winding device for a motor stator coil, which comprises a mounting platform, a winding assembly, wherein three groups of winding assemblies are evenly mounted on the mounting platform and are used to evenly wind the electric wire into a spiral shape; an elastic insulating sleeve, which is mounted on the winding assembly and is used to fix the spirally wound electric wire; a forming assembly, wherein three groups of forming assemblies are evenly mounted on the mounting platform and are used to extrude the electric wire wound on the elastic insulating sleeve into a U shape; and a wire connecting assembly, which is used to connect the electric wire mounted on a winding bracket; the winding of the motor stator coil is realized through a simple structure and can be automatically fixed on the winding bracket after the winding is completed; in addition, the wire connecting assembly designed on the winding bracket can also arbitrarily combine and connect coils in different positions according to connection requirements, and the combination method is diversified, thereby realizing the winding requirements of the motor stator coil.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor coil winding, and in particular relates to a multi-row winding device for a motor stator coil. Background Art

[0002] There are mainly the following methods and related steps for motor stator winding:

[0003] First, centralized winding:

[0004] Winding Process: Centralized winding generally consists of one or more rectangular coils. The coil shape and dimensions are determined according to the motor design. The wire is then wound around the rectangular frame according to the desired number of turns and winding direction. After winding, the coil is typically wrapped with yarn tape to secure the shape. After being dipped in varnish and dried, it is then embedded in the core of the salient pole. This winding method is commonly used for excitation coils in DC motors and universal motors, as well as the main pole windings of single-phase shaded-pole motors.

[0005] Second, distributed winding:

[0006] Winding Process: Several rectangular coils of varying sizes from the same coil group are nested one after another in a circular pattern, arranged in a central position. The small center coil is wound first, followed by the outer coils, in ascending order. This winding method is categorized as either single-layer or multi-layer. Single-layer concentric winding is relatively simple, with only one layer of wire wound around each coil. Multi-layer concentric winding requires winding multiple layers of wire around the same coil position, with careful attention to interlayer insulation during the winding process. Application Scenarios: This type of winding is commonly used for stator windings in single-phase motors and some low-power three-phase asynchronous motors.

[0007] However, existing winding equipment has high process requirements, a complex structure, and high costs. Furthermore, after winding, specialized machines are required for insulation treatment, such as wrapping the insulation layer. Different stator winding combinations produce different results, and different winding combinations require different winding methods and steps. The winding process also requires a dedicated control console, making it cumbersome to use.

[0008] The present invention designs a multi-row winding device for a motor stator coil to solve the above problems. Summary of the Invention

[0009] Based on this, it is necessary to address the problems existing in the current motor stator winding equipment and provide a multi-row winding equipment for motor stator coils. The winding of the motor stator coil is realized through a simple structure and can be automatically fixed on the winding bracket after the winding is completed. In addition, through the wire connection assembly designed on the winding bracket, the coils in different positions can be arbitrarily combined and connected according to the connection requirements. The combination methods are diversified, and the winding requirements of the motor stator coil are realized.

[0010] The above purpose is achieved through the following technical solutions:

[0011] A multi-row winding device for a motor stator coil, comprising

[0012] The bottom of the mounting platform is fixed on the workbench.

[0013] Winding components, three sets of winding components are evenly installed on the installation platform, and are used to evenly wind the wires into a spiral shape.

[0014] An elastic insulating sleeve, installed on the winding assembly, is used to fix the spirally wound wire.

[0015] Forming components, three groups of forming components are evenly installed on the installation platform, used to extrude the wires wrapped around the elastic insulating sleeve into a U shape; the three groups of forming components are distributed up and down and correspond to the three groups of winding components one by one; the wires extruded into a U shape and the elastic insulating sleeve are finally clamped together on the winding bracket and fixed.

[0016] The wire connecting assembly is used for connecting the wires installed on the wire winding bracket.

[0017] In one embodiment, the mounting platform includes a base, an L-shaped support rod, a mounting plate, a mounting rod, and a mounting frame, wherein the base is fixed to the workbench by bolts, and the mounting plate is fixedly mounted on the upper side of the base by two L-shaped support rods; the mounting rod is fixedly mounted on the upper side of the mounting plate, and the mounting frame is fixedly mounted on the upper end of the mounting rod.

[0018] In one embodiment, the winding assembly includes a fixed support, a mounting sleeve, a fixing sleeve, a support column, a first electric push rod, a second electric push rod, a limit block, a third electric push rod, a motor, a mounting plate, a fourth electric push rod, a pressure block, a fifth electric push rod, a first guide rod, a drive ring, and a cutting assembly, wherein the fixed support is fixedly mounted on the upper side of the base, the mounting sleeve is rotatably mounted in the fixed support, a fixing sleeve is rotatably mounted in the middle of the mounting sleeve, the first electric push rod is fixedly mounted on the fixing sleeve, a support column is fixedly mounted on the output shaft of the first electric push rod, and an elastic insulating sleeve is sleeved on the support column; a plurality of first guide rods are fixedly mounted evenly circumferentially on one end of the mounting sleeve, and a drive ring is fixedly mounted on an end of the first guide rod away from the mounting sleeve; a plurality of fifth electric push rods are fixedly mounted evenly circumferentially between the drive ring and the mounting sleeve; a slot is opened on the drive ring for facilitating the passage of wires; a cutting assembly capable of cutting wires is fixedly mounted on one end of the mounting sleeve; the motor is fixedly mounted on the upper side of the base, and the motor can drive the mounting sleeve to rotate.

[0019] A third electric push rod is fixedly installed on one side of the fixed support, a mounting plate is fixedly installed on the output end of the third electric push rod, a fourth electric push rod is fixedly installed on the mounting plate, and a pressure block is fixedly installed on the output end of the fourth electric push rod; the pressure block applies pressure to the inserted wires.

[0020] The second electric push rod is fixedly mounted on the mounting plate, and a limit block is fixedly mounted on the output shaft of the second electric push rod. The limit block is inserted into the support column to limit the rotation of the support column.

[0021] In one embodiment, a wire outlet hole is formed at one end of the elastic insulating sleeve.

[0022] The mounting sleeve is provided with a wire threading hole, and the wire passes through the fixed support and then into the wire threading hole. After passing through the wire threading hole, the wire passes through the slot on the drive ring and finally passes out from the corresponding wire outlet hole of the elastic insulating sleeve.

[0023] In one embodiment, a first gear is fixedly mounted on the output shaft of the motor, the mounting shaft is rotatably mounted on a fixed support, a second gear is fixedly mounted on one end of the mounting shaft, and the second gear is meshed with the first gear; a third gear is fixedly mounted on the other end of the mounting shaft, a gear ring is fixedly mounted on the mounting sleeve, and the gear ring is meshed with the third gear.

[0024] In one embodiment, the forming assembly includes a second guide rod, a sixth electric push rod, and a forming mold, wherein the forming mold is fixedly mounted on the lower side of the mounting frame through the second guide rod, a sixth electric push rod is installed between the forming mold and the mounting frame, and the forming mold has a U-shaped groove with an opening facing downward.

[0025] In one embodiment, the wire connection assembly includes a mounting sleeve, a connecting electrical plate, a first connecting wire, and a second connecting wire, wherein the mounting sleeve is embedded in the winding bracket, and three layers of connecting electrical plates are installed in the mounting sleeve. Each connecting electrical plate in each layer has arc-shaped ends at both ends, and the arc-shaped ends are elastic. Before connection, adjacent arc-shaped ends are in close contact and have pre-pressure.

[0026] The connecting electrical sheet is connected to the electric wire embedded in the winding bracket through a first connecting wire and a second connecting wire.

[0027] Compared with the existing technology, the advantages of the present invention are:

[0028] 1. The present invention realizes the winding of the motor stator coil through a simple structure and can be automatically fixed on the winding bracket after the winding is completed. In addition, through the wire connection assembly designed on the winding bracket, coils in different positions can be arbitrarily combined and connected according to the connection requirements. The combination method is diversified, and the winding requirements of the motor stator coil are realized.

[0029] 2. After the winding is completed, because the coil is directly wound on the elastic insulating sleeve, no special machine is required for insulation treatment, which eliminates the step of winding the insulation layer and improves the winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall appearance of the components.

[0031] Figure 2 It is a schematic diagram of the distribution of molding components.

[0032] Figure 3 This is a schematic diagram of the distribution of winding components.

[0033] Figure 4 It is a schematic diagram of the wire winding bracket structure.

[0034] Figure 5 It is a schematic diagram of the winding component structure.

[0035] Figure 6 It is a schematic diagram of the motor and mounting sleeve transmission.

[0036] Figure 7 This is the installation diagram of the third electric linear actuator.

[0037] Figure 8 This is a schematic diagram of the pressure block installation.

[0038] Figure 9 It is a schematic diagram of the structure of the elastic insulating sleeve.

[0039] Figure 10 This is a schematic diagram of the support column installation.

[0040] Figure 11 This is a schematic diagram of the drive ring installation.

[0041] Figure 12 This is a schematic diagram of the cutting component installation.

[0042] Figure 13 This is a schematic diagram of installing the elastic insulating sleeve on the wire winding bracket.

[0043] Figure 14 This is a schematic diagram of the installation of wire connection components.

[0044] Figure 15 This is a schematic diagram of the connection circuit installation.

[0045] Figure 16 This is a schematic diagram of the connection circuit distribution.

[0046] Figure 17 It is a schematic diagram of connecting the circuit board and the connecting wires.

[0047] Figure 18 This is a schematic diagram of connecting the circuit board and the connecting wires.

[0048] Figure 19 It is a schematic diagram of the connection between the circuit board and the connection wire.

[0049] Figure 20 It is a schematic diagram of connecting the circuit board and the connecting wires.

[0050] Figure 21 It is a schematic diagram of the wire being wound in an elastic insulating sleeve.

[0051] Figure 22 This is a schematic diagram of the wiring connection components.

[0052] Reference numerals in the figure: 1. Mounting platform; 2. Wire winding bracket; 3. Wire winding assembly; 4. Forming assembly; 5. Elastic insulating sleeve; 6. Wire connection assembly; 7. Wires;

[0053] 1001, base; 1002, L-shaped support rod; 1003, mounting plate; 1004, mounting rod; 1005, mounting bracket;

[0054] 2001, split support plate;

[0055] 3001, fixed support; 3002, mounting sleeve; 3003, fixing sleeve; 3004, support column; 3005, first electric push rod; 3006, second electric push rod; 3007, limit block; 3008, third electric push rod; 3009, motor; 3010, first gear; 3011, second gear; 3012, third gear; 3013, mounting shaft; 3014, ring gear; 3015, threading hole; 3016, mounting plate; 3017, fourth electric push rod; 3018, pressure block; 3019, fifth electric push rod; 3020, first guide rod; 3021, drive ring; 3022, cutting assembly; 3023, slot;

[0056] 4001, second guide rod; 4002, sixth electric push rod; 4003, forming die;

[0057] 5001, outlet hole;

[0058] 6001, installation sleeve; 6002, connection electrode; 6003, first connecting wire; 6004, second connecting wire; 605, curved end. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on those shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or element referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.

[0061] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] like Figure 1 -like Figure 21 As shown, a multi-row winding device for a motor 3009 stator coil comprises a mounting platform 1, the bottom of which is fixed on a workbench; Figure 1 、 3 As shown, the winding assembly 3, three groups of winding assemblies 3 are evenly installed on the installation platform 1, and are used to evenly wind the wire 7 in a spiral shape; the elastic insulating sleeve 5 is installed on the winding assembly 3, and is used to fix the spirally wound wire 7; Figure 2 As shown, the forming components 4, three groups of forming components 4 are evenly installed on the mounting platform 1, and are used to extrude the wire 7 wound on the elastic insulating sleeve 5 into a U shape; the three groups of forming components 4 are distributed up and down with the three groups of winding components 3 and correspond one to one; Figure 4 、 13 As shown in FIG. 14 , the wire 7 and the elastic insulating sleeve 5 squeezed into a U shape are finally clamped together and fixed on the winding bracket 2; Figure 13 As shown, the wire connecting assembly 6 is used to connect the wires 7 installed on the wire winding bracket 2.

[0063] The winding bracket 2 used in the present invention is identical in structure, shape and material to the winding bracket 2 of the stator of the conventional motor 3009. The winding bracket 2 is a prior art. In the present invention, the wire 7 is spirally wound around the elastic insulating sleeve 5. Figure 21As shown; the elastic insulating sleeve 5 is composed of two layers of circular insulating sleeves, the inner and outer layers, and the wire 7 is wound on the inner insulating sleeve; when winding the wire 7, the elastic insulating sleeve 5 is nested on the winding component 3, and the winding bracket is placed on the mounting platform 1, so that the elastic insulating sleeve 5 is located on the upper side of the winding bracket 2 and the elastic insulating sleeve 5 is facing one of the split support plates 2001 on the winding bracket 2; after the wire 7 is wound, the elastic insulating sleeve 5 on the lower side is squeezed downward by the forming component 4; under the cooperation of the forming component 4 and the winding bracket, the elastic insulating sleeve 5 and the elastic insulating sleeve 5 wound on the elastic insulating sleeve are The wires 7 on the insulating sleeve 5 are extruded into a U shape and clamped on the winding bracket; after all the wires 7 on the winding bracket are wound and extruded and clamped on the winding bracket, the lower ends of all the elastic insulating sleeves 5 installed on the winding bracket are clamped and fixed together by an external small clamping device; the small clamping device can be an elastic U-shaped clamp; after the elastic insulating sleeve 5 and all the wires 7 wound on the elastic insulating sleeve 5 are completely fixed on the winding bracket, the wires 7 on the winding bracket are connected as required by the wire connecting assembly 6, such as Figure 13 、 15 shown.

[0064] In a further embodiment, Figure 2 As shown, the mounting platform 1 includes a base 1001, an L-shaped support rod 1002, a mounting plate 1003, a mounting rod 1004, and a mounting frame 1005, wherein the base 1001 is fixed to the workbench by bolts, and the mounting plate 1003 is fixedly mounted on the upper side of the base 1001 by two L-shaped support rods 1002; the mounting plate 1003 is fixedly mounted with a mounting rod 1004 on the upper side, and the upper end of the mounting rod 1004 is fixedly mounted with a mounting frame 1005.

[0065] In a further embodiment, Figure 5 As shown, the winding assembly 3 includes a fixed support 3001, a mounting sleeve 3002, a fixing sleeve 3003, a support column 3004, a first electric push rod 3005, a second electric push rod 3006, a limit block 3007, a third electric push rod 3008, a motor 3009, a mounting plate 3016, a fourth electric push rod 3017, a pressure block 3018, a fifth electric push rod 3019, a first guide rod 3020, a drive ring 3021, and a cutting assembly 3022, wherein Figure 3 As shown, the fixed support 3001 is fixedly mounted on the upper side of the base 1001, the mounting sleeve 3002 is rotatably mounted in the fixed support 3001, the middle of the mounting sleeve 3002 is rotatably mounted with a fixed sleeve 3003, the fixed sleeve 3003 is fixedly mounted with a first electric push rod 3005, the output shaft of the first electric push rod 3005 is fixedly mounted with a support column 3004, and the elastic insulating sleeve 5 is sleeved on the support column 3004; Figure 11As shown, a plurality of first guide rods 3020 are fixedly installed uniformly around one end of the mounting sleeve 3002, and a drive ring 3021 is fixedly installed on the end of the first guide rod 3020 away from the mounting sleeve 3002; a plurality of fifth electric push rods 3019 are fixedly installed uniformly around the driving ring 3021 and the mounting sleeve 3002; a slot 3023 is provided on the driving ring 3021 for the wire 7 to pass through; Figure 11 、 12 As shown, a cutting assembly 3022 capable of cutting the wire 7 is fixedly mounted on one end of the mounting sleeve 3002 ; a motor 3009 is fixedly mounted on the upper side of the base 1001 , and the motor 3009 can drive the mounting sleeve 3002 to rotate.

[0066] Controlling the first electric push rod 3005 can control the support column 3004 to slide relative to the fixed sleeve 3003; controlling the fifth electric push rod 3019 can control the drive ring 3021 to slide relative to the mounting sleeve 3002, and the first guide rod 3020 can guide the sliding of the drive ring 3021.

[0067] After the winding of the electric wire 7 is completed, the cutting component 3022 can be controlled to cut the electric wire 7, so that the wound electric wire 7 is disconnected from the unwound prepared electric wire 7.

[0068] like Figure 7 、 8 As shown, a third electric push rod 3008 is fixedly installed on one side of the fixed support 3001, a mounting plate 3016 is fixedly installed on the output end of the third electric push rod 3008, a fourth electric push rod 3017 is fixedly installed on the mounting plate 3016, and a pressure block 3018 is fixedly installed on the output end of the fourth electric push rod 3017; the pressure block 3018 applies pressure to the inserted wire 7.

[0069] like Figure 3 、 5 As shown in FIG. 10 , the second electric push rod 3006 is fixedly mounted on the mounting plate 1003 , and a limit block 3007 is fixedly mounted on the output shaft of the second electric push rod 3006 . The limit block 3007 is inserted into the support column 3004 to limit the rotation of the support column 3004 .

[0070] In a further embodiment, Figure 9 As shown, one end of the elastic insulating sleeve 5 is provided with a wire outlet hole.

[0071] like Figure 6 As shown, the mounting sleeve 3002 is provided with a threading hole 3015. Figure 5As shown, the wire 7 passes through the fixed support 3001 and then passes through the wire hole 3015. After passing through the wire hole 3015, the wire 7 passes through the slot 3023 on the drive ring 3021 and finally passes through the corresponding wire outlet hole of the elastic insulating sleeve 5.

[0072] In a further embodiment, Figure 6 As shown, a first gear 3010 is fixedly mounted on the output shaft of the motor 3009, a mounting shaft 3013 is rotatably mounted on the fixed support 3001, a second gear 3011 is fixedly mounted on one end of the mounting shaft 3013, and the second gear 3011 is meshed with the first gear 3010; a third gear 3012 is fixedly mounted on the other end of the mounting shaft 3013, a gear ring 3014 is fixedly mounted on the mounting sleeve 3002, and the gear ring 3014 is meshed with the third gear 3012.

[0073] Before winding the wire, the first electric push rod 3005 and the fifth electric push rod 3019 are both in a retracted state. When winding, first control the first electric push rod 3005 to work so that its output end drives the support column 3004 to move outward, and the elastic insulating sleeve 5 is put on the support column 3004; then, place the winding bracket on the upper side of the base 1001 and make the elastic insulating sleeve 5 located on the upper side of the winding bracket 2 and the elastic insulating sleeve 5 is facing one of the split support plates 2001 on the winding bracket 2; then, control the second electric push rod 3006 to work so that the output end of the second electric push rod 3006 drives the limit block 3007 to insert into the support column 3004 to limit the rotation of the support column 3004; then, insert the wire 7 to be wound into the fixed support 3001 , the wire 7 passes through the fixed support 3001 and then passes through the wire hole 3015. After passing through the wire hole 3015, the wire 7 passes through the card slot 3023 on the drive ring 3021 and finally passes through the corresponding wire outlet hole of the elastic insulating sleeve 5; then the third electric push rod 3008 is controlled to work, so that the output end of the third electric push rod 3008 drives the mounting plate 3016 to slide, and the mounting plate 3016 drives the fourth electric push rod 3017 to slide, and the sliding of the fourth electric push rod 3017 drives the pressing block 3018 to slide. When the pressing block 3018 moves to the inner end surface close to the elastic insulating sleeve 5, the fourth electric push rod 3017 is controlled to work, so that the output end of the fourth electric push rod 3017 drives the mounting plate 3016 to slide, and the mounting plate 3016 drives the fourth electric push rod 3017 to slide. The end drives the pressing block 3018 to move downward and press the corresponding wire 7; then the motor 3009 is controlled to work. When the motor 3009 is working, the motor 3009 drives the first gear 3010 to rotate. The rotation of the first gear 3010 drives the second gear 3011 to rotate. The rotation of the second gear 3011 drives the installation shaft 3013 to rotate. The rotation of the installation shaft 3013 drives the third gear 3012 to rotate. The rotation of the third gear 3012 drives the ring gear 3014 to rotate. The rotation of the ring gear 3014 drives the installation sleeve 3002 to rotate. The rotation of the installation sleeve 3002 drives the corresponding fifth electric push rod 3019 and the first guide rod 3020 to rotate around the axis of the installation sleeve 3002. The rotation of the first guide rod 3020 drives the driving ring 3021 to rotate. The driving ring 3021 rotates through the clamping slot 3023 to drive the wire 7 to rotate circumferentially around the axis of the support column 3004. During this process, because the side of the wire 7 close to the inner end of the elastic insulating sleeve 5 is pressed and fixed by the pressing block 3018, when the driving ring 3021 drives the wire 7 to rotate circumferentially around the axis of the support column 3004, the wire 7 will be wound around the insulating sleeve of the inner layer of the elastic insulating sleeve 5. During this process, it is necessary to control the fifth electric push rod 3019 to work and drive the driving ring 3021 to slide toward the outside of the elastic insulating sleeve 5. As a result, the wire 7 will be wound into a spiral shape on the insulating sleeve of the inner layer of the insulating sleeve.When the drive ring 3021 completely slides out of the elastic insulating sleeve 5, the control motor 3009 stops operating. The fourth electric push rod 3017 is then controlled to operate, causing its output end to drive the pressure block 3018 upward and disengage from the corresponding wire 7. The third electric push rod 3008 is then controlled to operate, causing its output end to slide the mounting plate 3016. The mounting plate 3016 then slides the fourth electric push rod 3017. The sliding of the fourth electric push rod 3017 then slides the pressure block 3018, causing the pressure block 3018 to slide out of the elastic insulating sleeve 5.

[0074] During this process, because the support column 3004 is limited by the limit block 3007 , the rotation of the fixing sleeve 3003 for mounting the support column 3004 and the first electric push rod 3005 is restricted and will not interfere with the rotation of the mounting sleeve 3002 .

[0075] The cutting assembly 3022 installed on the mounting sleeve 3002 will not affect the winding of the wire 7 because it will rotate along with the mounting sleeve 3002 and the wire 7 during the circumferential rotation of the mounting sleeve 3002.

[0076] In a further embodiment, Figure 2 As shown, the forming assembly 4 includes a second guide rod 4001, a sixth electric push rod 4002, and a forming mold 4003, wherein the forming mold 4003 is fixedly mounted on the lower side of the mounting frame 1005 through the second guide rod 4001, and a sixth electric push rod 4002 is installed between the forming mold 4003 and the mounting frame 1005, and the forming mold 4003 has a U-shaped groove with an opening facing downward.

[0077] After the winding of the wire 7 is completed, the sixth electric push rod 4002 is controlled to work so that the output end of the sixth electric push rod 4002 drives the forming mold 4003 to move downward, applying a pressure to the elastic insulating spring. This pressure can apply a resistance along the axis of the support sleeve to the elastic insulating sleeve 5, but will not cause the elastic insulating sleeve 5 to deform; then the first electric push rod 3005 is controlled to work so that its output end drives the support column 3004 to move and detach from the elastic insulating sleeve 5.

[0078] Then, the sixth electric push rod 4002 continues to control the forming mold 4003 to move downward, and the elastic insulating sleeve 5 on the lower side is squeezed downward by the forming mold 4003; with the cooperation of the forming mold 4003 and the winding bracket, the elastic insulating sleeve 5 and the wire 7 wound on the elastic insulating sleeve 5 are squeezed into a U shape and clamped on the winding bracket.

[0079] In a further embodiment, the Figure 14 、 15As shown in Figures 16 and 16, the wire connection assembly 6 includes a mounting sleeve 6001, a connecting electrical sheet 6002, a first connecting wire 6003, and a second connecting wire 6004, wherein the mounting sleeve 6001 is embedded in the winding bracket, and three layers of connecting electrical sheets 6002 are installed in the mounting sleeve 6001. Each connecting electrical sheet 6002 in each layer of connecting electrical sheets 6002 has an arc-shaped end 605 at both ends, and the arc-shaped end 605 is elastic. Before being connected, the adjacent arc-shaped ends 605 are in close contact and have pre-pressure.

[0080] like Figure 15 、 17 As shown, the connecting electrical sheet 6002 is connected to the electric wire 7 embedded in the winding bracket through the first connecting wire 6003 and the second connecting wire 6004.

[0081] The existing motor 3009 stator winding will eventually output three input terminals and three output terminals, that is, it has three wire groups; and the composition of the wire groups is divided into different combinations, such as Figure 22 As shown, assuming that the three wire groups are composed of coils 1, 2, and 3 respectively, the distribution of the coils in the three wire groups can be (1, 2, 3), (1, 2, 3), (1, 2, 3); or (1, 1, 1), (2, 2, 2), (3, 3, 3), etc. The connecting piece 6002 in the wire connecting assembly 6 for connecting the wire 7 coils in the present invention is divided into three layers, each layer corresponding to a wire group connecting assembly, as shown in FIG. Figure 18 、 19 As shown in FIG20, when the coil of the electric wire 7 needs to be connected, the two ends of the corresponding connecting electrical sheet 6002 are disconnected through the first connecting line 6003 and the second connecting line 6004, and the disconnected two ends are connected to the two ends of the corresponding coil of the electric wire 7; the undisconnected area is connected through the adjacent connecting electrical sheet 6002, so that the coils to be connected can be connected in series, and any connection requirements of the coils can be realized.

[0082] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multi-row winding device for a motor stator coil, characterized by: It includes Mounting platform, the bottom of the mounting platform is fixed on the workbench; Winding components: three sets of winding components are evenly installed on the installation platform, used to evenly wind the wires into a spiral shape; An elastic insulating sleeve, installed on the winding assembly, is used to fix the spirally wound wire; The three forming assemblies are evenly installed on the mounting platform and are used to extrude the wires wrapped around the elastic insulating sleeve into a U-shape. The three forming assemblies are distributed vertically and correspond to the three winding assemblies one by one. The wires extruded into a U-shape and the elastic insulating sleeve are finally clamped together on the winding bracket and fixed. A wire connecting assembly, used for connecting wires mounted on the wire winding bracket; The mounting platform includes a base, an L-shaped support rod, a mounting plate, a mounting rod, and a mounting frame, wherein the base is fixed to the workbench by bolts, and the mounting plate is fixedly mounted on the upper side of the base by two L-shaped support rods; the mounting rod is fixedly mounted on the upper side of the mounting plate, and the mounting frame is fixedly mounted on the upper end of the mounting rod; The winding assembly includes a fixed support, a mounting sleeve, a fixing sleeve, a support column, a first electric push rod, a second electric push rod, a limit block, a third electric push rod, a motor, a mounting plate, a fourth electric push rod, a pressure block, a fifth electric push rod, a first guide rod, a driving ring, and a cutting assembly, wherein the fixed support is fixedly mounted on the upper side of the base, the mounting sleeve is rotatably mounted in the fixed support, the middle of the mounting sleeve is rotatably mounted with a fixing sleeve, the first electric push rod is fixedly mounted on the fixing sleeve, the support column is fixedly mounted on the output shaft of the first electric push rod, and the elastic insulating sleeve is sleeved on the support column; a plurality of first guide rods are fixedly mounted evenly circumferentially on one end of the mounting sleeve, the driving ring is fixedly mounted on an end of the first guide rod away from the mounting sleeve; a plurality of fifth electric push rods are fixedly mounted evenly circumferentially between the driving ring and the mounting sleeve; a slot is opened on the driving ring for easy passage of wires; a cutting assembly capable of cutting wires is fixedly mounted on one end of the mounting sleeve; the motor is fixedly mounted on the upper side of the base, and the motor can drive the mounting sleeve to rotate; A third electric push rod is fixedly mounted on one side of the fixed support, a mounting plate is fixedly mounted on the output end of the third electric push rod, a fourth electric push rod is fixedly mounted on the mounting plate, and a pressure block is fixedly mounted on the output end of the fourth electric push rod; the pressure block applies pressure to the inserted wires; The second electric push rod is fixedly mounted on the mounting plate, and a limit block is fixedly mounted on the output shaft of the second electric push rod. The limit block is inserted into the support column to limit the rotation of the support column. One end of the elastic insulating sleeve is provided with a wire outlet hole; The mounting sleeve is provided with a wire threading hole, and the wire passes through the fixed support and then into the wire threading hole. After passing through the wire threading hole, the wire passes through the slot on the driving ring and finally passes out from the corresponding wire outlet hole of the elastic insulating sleeve; A first gear is fixedly mounted on the output shaft of the motor, the mounting shaft is rotatably mounted on a fixed support, the second gear is fixedly mounted on one end of the mounting shaft, and the second gear is meshed with the first gear; the third gear is fixedly mounted on the other end of the mounting shaft, a gear ring is fixedly mounted on the mounting sleeve, and the gear ring is meshed with the third gear.

2. The multi-row winding device for a motor stator coil according to claim 1, characterized in that: The forming assembly includes a second guide rod, a sixth electric push rod, and a forming mold, wherein the forming mold is fixedly mounted on the lower side of the mounting frame through the second guide rod, a sixth electric push rod is installed between the forming mold and the mounting frame, and the forming mold has a U-shaped groove with an opening facing downward.

3. The multi-row winding device for a motor stator coil according to claim 1, characterized in that: The wire connection assembly includes a mounting sleeve, a connecting electrical sheet, a first connecting wire, and a second connecting wire, wherein the mounting sleeve is embedded in the winding bracket, and three layers of connecting electrical sheets are installed in the mounting sleeve. Each connecting electrical sheet in each layer has arc-shaped ends at both ends, and the arc-shaped ends are elastic. Before being connected, adjacent arc-shaped ends are in close contact and have pre-pressure. The connecting electrical sheet is connected to the electric wire embedded in the winding bracket through a first connecting wire and a second connecting wire.

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