A motor winding outgoing terminal collector ring and a motor

Abstract

This invention provides a slip ring for motor winding outputs, comprising an annular terminal block and three output terminals. Each output terminal includes an arc-shaped portion, two locking points, two connecting parts, and one output part. The two locking points are located on the inner surfaces at both ends of the arc-shaped portion, and the two connecting parts and one output part are spaced apart on the outer surfaces of the arc-shaped portion. The outer circumferential surface of the terminal block has three annular mounting grooves for accommodating the output terminals, and the bottom of each mounting groove has two locking point recesses for fixing the locking points on the output terminals. This invention also provides a motor equipped with the above-mentioned slip ring. The slip ring of this invention is simpler to manufacture, has lower cost, and does not require integral injection molding.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a motor winding lead slip ring and a motor. Background Technology

[0002] As a crucial component of a motor, the winding plays a major role in ensuring the motor's performance. The winding needs to be mounted on the iron core and connected to external power supply or power-receiving equipment. The current mainstream solutions are twofold: one is to directly lead the winding through a cable, and the other is to lead it through a slip ring integrally molded with the output terminals and connector. Leading the winding through a cable presents soldering problems for motors that need to be directly connected to the controller PCBA. Leading it through a slip ring integrally molded with the output terminals and connector requires the creation of a special mold and layered injection molding, resulting in very high mold costs, complex manufacturing processes, and high product costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a motor winding slip ring that is simple to manufacture and has a low cost in order to overcome the shortcomings of the prior art, and based on this, a motor is provided.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention regarding the slip ring is as follows: a slip ring for motor winding output, comprising an annular terminal block and three output terminals; each output terminal includes an arc-shaped portion, two fastening points, two connecting portions and one output portion, the two fastening points being disposed on the inner sides of both ends of the arc-shaped portion, and the two connecting portions and one output portion being disposed at intervals on the outer sides of the arc-shaped portion; the outer circumferential surface of the terminal block is provided with three annular mounting grooves for accommodating the output terminals, and the bottom of each mounting groove is provided with two fastening point grooves for fixing the fastening points on the output terminals.

[0005] The installation method of the above technical solution is as follows: the arc-shaped part of the three outgoing terminals is installed from the side into the three mounting slots of the terminal block, and the outgoing terminals are fixed in the mounting slots of the terminal block by the two fastening points on the inner side of the arc-shaped part of the outgoing terminals.

[0006] Furthermore, the outer peripheral surface of the terminal block is provided with three radial positioning grooves at intervals, and the positions of the three positioning grooves correspond to the outlet portions of the three outlet terminals respectively.

[0007] Furthermore, the inner side of the lower end of the terminal block is provided with an annular radial stop groove, and multiple circumferential stop protrusions are spaced apart in the radial stop groove.

[0008] In one embodiment, the three outgoing terminals are U-phase outgoing terminal, V-phase outgoing terminal, and W-phase outgoing terminal, respectively. The wiring portions on the three outgoing terminals are all U-shaped and are used to connect to the motor. The outgoing portions on the three outgoing terminals are all used to connect to the controller PCBA.

[0009] The technical solution of this invention regarding an electric motor is as follows: An electric motor includes an iron core, a front conductor frame, a rear conductor frame, windings, and a slip ring. The slip ring includes an annular terminal block and three outgoing terminals. Each outgoing terminal includes an arc-shaped portion, two fastening points, two connecting portions, and one outgoing portion. The two fastening points are located on the inner sides of both ends of the arc-shaped portion, and the two connecting portions and one outgoing portion are spaced apart on the outer sides of the arc-shaped portion. The outer circumferential surface of the terminal block has three annular mounting grooves for accommodating the outgoing terminals. The bottom of each mounting groove has two fastening point grooves for fixing the fastening points on the outgoing terminals. The terminal block is sleeved on the rear conductor frame.

[0010] Furthermore, the outer peripheral surface of the terminal block is provided with three radial positioning grooves at intervals, and the positions of the three positioning grooves correspond to the outlet portions of the three outlet terminals respectively.

[0011] Furthermore, the inner side of the lower end of the terminal block is provided with an annular radial stop groove at the position where it mates with the rear wire frame, and a plurality of circumferential stop protrusions are provided at intervals in the radial stop groove; the end of the rear wire frame is provided with an outer wire stop plate and an inner wire stop plate, the outer circumferential surface of the inner wire stop plate mates with the radial stop groove of the terminal block, and a limiting groove is provided on the inner wire stop plate at the position corresponding to the circumferential stop protrusion of the terminal block.

[0012] In one embodiment, the three outgoing terminals are U-phase outgoing terminal, V-phase outgoing terminal, and W-phase outgoing terminal. The wiring portions on the three outgoing terminals are all U-shaped and are connected to the motor windings and fixed by welding. The outgoing portions on the three outgoing terminals are all used to connect to the controller PCBA.

[0013] The slip ring in the motor of this invention is mounted from the side into three mounting slots of the terminal block by the arc-shaped portions of the three outgoing terminals. The outgoing terminals are fixed in the mounting slots of the terminal block by two fastening points on the inner side of the arc-shaped portions. The bottom of the terminal block has a circumferential stop boss and a radial stop groove. The circumferential stop boss and the radial stop groove cooperate with the limiting groove on the rear wire frame and the outer diameter of the inner wire baffle to fix the entire slip ring circumferentially and radially. The wiring portions on the three outgoing terminals are connected to the motor windings and fixed by welding. In this way, the slip ring is fixed in the axial direction by six welding points, so that the position of the entire slip ring is completely fixed without the need for additional fixing mechanisms, simplifying the structure of the slip ring, making the manufacturing of the slip ring simpler and the cost lower. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the collector ring in Embodiments 1 and 2 of the present invention;

[0015] Figure 2 This is a schematic diagram of the U-phase outgoing terminal structure in embodiments 1 and 2 of the present invention;

[0016] Figure 3 This is a schematic diagram of the V-phase output terminal structure in Embodiments 1 and 2 of the present invention;

[0017] Figure 4 This is a schematic diagram of the W-phase outgoing terminal structure in embodiments 1 and 2 of the present invention;

[0018] Figure 5 These are schematic diagrams of the terminal block structure in embodiments 1 and 2 of the present invention;

[0019] Figure 6 for Figure 5 A schematic diagram of the radial cross-section structure;

[0020] Figure 7 for Figure 5 A schematic diagram of the axial cross-section structure;

[0021] Figure 8 This is a schematic diagram of the exploded structure of the motor in Embodiment 2 of the present invention;

[0022] Figure 9 This is a schematic diagram of the overall structure of the motor in Embodiment 2 of the present invention;

[0023] Figure 10 for Figure 9 A schematic diagram of the axial cross-section structure;

[0024] Figure 11 This is a partial structural diagram of the rear wire frame in Embodiment 2 of the present invention.

[0025] The attached figures are labeled as follows:

[0026] 1 - Iron core 2 - Front frame

[0027] 3 - Rear frame 4 - Winding

[0028] 5—Terminal block; 6—U-phase output terminal

[0029] 7 – V-phase output terminal; 8 – W-phase output terminal

[0030] a——Curved part b——Clasp point

[0031] c - Wiring section d - Outgoing cable section

[0032] 3a - Outer baffle plate; 3b - Inner baffle plate

[0033] 3c - Limiting groove; 5a - Mounting groove

[0034] 5b – Clamping groove; 5c – Positioning groove

[0035] 5d - Radial stop groove; 5e - Circumferential stop boss. Detailed Implementation

[0036] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] In the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the terms according to the specific circumstances.

[0039] Example 1

[0040] like Figures 1 to 7 As shown, a motor winding slip ring includes an annular terminal block 5 and three outgoing terminals, namely a U-phase outgoing terminal 6, a V-phase outgoing terminal 7, and a W-phase outgoing terminal 8. Each outgoing terminal includes an arc-shaped portion a, two fastening points b, two connecting portions c, and an outgoing portion d. The two fastening points b are located on the inner sides of both ends of the arc-shaped portion a, and the two connecting portions c and the outgoing portion d are spaced apart on the outer sides of the arc-shaped portion a. The outer circumferential surface of the terminal block 5 is provided with three annular mounting grooves 5a for accommodating the outgoing terminals. The bottom of each mounting groove 5a is provided with two fastening point grooves 5b for fixing the fastening points b on the outgoing terminals. The outer circumferential surface of the terminal block 5 is also provided with three radial positioning grooves 5c at intervals, and the positions of the three positioning grooves 5c correspond to the outgoing portions d of the three outgoing terminals respectively. The inner side of the lower end of the terminal block 5 is provided with an annular radial stop groove 5d, and multiple circumferential stop protrusions 5e are spaced apart in the radial stop groove 5d.

[0041] The installation method of this embodiment is as follows: the arc-shaped part a of the three outgoing terminals is installed from the side into the three mounting slots 5a of the terminal block 5, and the outgoing terminals are fixed in the mounting slots 5a of the terminal block by the two fastening points b on the inner side of the arc-shaped part a of the outgoing terminals; the wiring part c on the three outgoing terminals is U-shaped and is used to connect the motor, and the outgoing part d on the three outgoing terminals is used to connect the controller PCBA.

[0042] Example 2

[0043] like Figures 1 to 11 As shown, a motor includes an iron core 1, a front conductor frame 2, a rear conductor frame 3, windings 4, and a slip ring. The slip ring includes an annular terminal block 5 and three output terminals, namely a U-phase output terminal 6, a V-phase output terminal 7, and a W-phase output terminal 8. Each output terminal includes an arc-shaped portion a, two fastening points b, two connecting portions c, and an output portion d. The two fastening points b are located on the inner surfaces of both ends of the arc-shaped portion a, and the two connecting portions c and the output portion d are spaced apart on the outer surfaces of the arc-shaped portion a. The outer circumference of the terminal block 5 has three annular mounting grooves 5a for accommodating the output terminals. The bottom of each mounting groove 5a has two fastening point grooves 5b for fixing the fastening points b on the output terminals. The terminal block 5 is sleeved on the rear conductor frame 3. The outer circumferential surface of the terminal block 5 is also provided with three radial positioning grooves 5c at intervals. The positions of the three positioning grooves 5c correspond to the outlet portions d of the three outlet terminals respectively. The inner side of the lower end of the terminal block 5 is provided with an annular radial stop groove 5d at the position that mates with the rear wire frame 3. Multiple circumferential stop bosses 5e are provided at intervals in the radial stop groove 5d. The end of the rear wire frame 3 is provided with an outer wire baffle 3a and an inner wire baffle 3b. The outer circumferential surface of the inner wire baffle 3b mates with the radial stop groove 5d of the terminal block 5. The inner wire baffle 3b is provided with a limiting groove 3c at the position corresponding to the circumferential stop bosses 5e of the terminal block. The outlet portions c on the three outlet terminals are all U-shaped and are all connected to the winding 4 and fixed by welding. The outlet portions d on the three outlet terminals are all used to connect to the controller PCBA.

[0044] The installation method of this embodiment is as follows: The arc-shaped part a of the three outgoing terminals is installed from the side into the three mounting slots 5a of the terminal block 5. The outgoing terminals are fixed in the mounting slots 5a of the terminal block by the two fastening points b on the inner side of the arc-shaped part a. The bottom of the terminal block 5 has a circumferential stop boss 5e and a radial stop groove 5d. The circumferential stop boss 5e and the radial stop groove 5d are engaged with the outer diameter of the limiting groove 3c on the rear wire frame 3 and the inner wire baffle 3b to fix the entire slip ring circumferentially and radially. The wiring part c on the three outgoing terminals is connected to the winding 4 and fixed by welding. In this way, the slip ring is fixed in the axial direction by six welding points, so that the position of the entire slip ring is completely fixed without the need to add other fixing mechanisms, which simplifies the structure of the slip ring.

[0045] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

[0046] To facilitate understanding by those skilled in the art of the improvements of this invention over the prior art, some of the accompanying drawings and descriptions have been simplified, and for clarity, some other elements have been omitted from this application. Those skilled in the art should realize that these omitted elements may also constitute the content of this invention.

Claims

1. A slip ring for a motor winding output, characterized in that: It includes a ring-shaped terminal block and three outgoing terminals; each outgoing terminal includes an arc-shaped portion, two fastening points, two wiring portions and one outgoing portion. The two fastening points are located on the inner sides of both ends of the arc-shaped portion, and the two wiring portions and one outgoing portion are spaced apart on the outer sides of the arc-shaped portion. The outer circumferential surface of the terminal block has three annular mounting grooves for accommodating the outgoing terminals. The bottom of each mounting groove has two fastening point grooves for fixing the fastening points on the outgoing terminals. The outer circumferential surface of the terminal block also has three radial positioning grooves spaced apart, and the positions of the three positioning grooves correspond to the outgoing portions of the three outgoing terminals respectively. The inner side of the lower end of the terminal block has an annular radial stop groove, and multiple circumferential stop protrusions are spaced apart in the radial stop groove.

2. The motor winding lead slip ring according to claim 1, characterized in that: The three outgoing terminals are U-phase outgoing terminal, V-phase outgoing terminal, and W-phase outgoing terminal. The wiring parts on the three outgoing terminals are all U-shaped and are used to connect to the motor. The outgoing parts on the three outgoing terminals are used to connect to the controller PCBA.

3. An electric motor, comprising an iron core, a front conductor frame, a rear conductor frame, windings, and slip rings, characterized in that: The collector ring includes an annular terminal block and three outgoing terminals. Each outgoing terminal includes an arc-shaped portion, two fastening points, two connecting parts, and one outgoing part. The two fastening points are located on the inner sides of both ends of the arc-shaped portion, and the two connecting parts and one outgoing part are spaced apart on the outer sides of the arc-shaped portion. The outer circumferential surface of the terminal block has three annular mounting grooves for accommodating the outgoing terminals. The bottom of each mounting groove has two fastening point grooves for fixing the fastening points on the outgoing terminals. The terminal block is fitted onto the rear wire frame. The outer circumferential surface of the terminal block also has three radial positioning grooves spaced apart, and the positions of the three positioning grooves correspond to the outgoing parts of the three outgoing terminals. The inner side of the lower end of the terminal block has an annular radial stop groove at the position where it mates with the rear wire frame. Multiple circumferential stop protrusions are spaced apart in the radial stop groove. The end of the rear wire frame has an outer wire baffle and an inner wire baffle. The outer circumferential surface of the inner wire baffle mates with the radial stop groove of the terminal block, and the inner wire baffle has a limiting groove at the position corresponding to the circumferential stop protrusion of the terminal block.

4. The motor according to claim 3, characterized in that: The three outgoing terminals are U-phase outgoing terminal, V-phase outgoing terminal, and W-phase outgoing terminal. The wiring parts on the three outgoing terminals are all U-shaped and are connected to the motor windings and fixed by welding. The outgoing parts on the three outgoing terminals are used to connect to the controller PCBA.

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