Busbar and motor

Abstract

The application discloses a connecting row and a motor. The connecting row is applied to the motor, the motor comprises a plurality of coils arranged along a circumferential direction, and the connecting row comprises: a mounting seat which is an insulating piece arranged in a ring shape; a first connecting piece which comprises two first connecting ends arranged at intervals along the circumferential direction, the first connecting piece is arranged on the inner side and / or the outer side of the mounting seat, and the first connecting piece connects two adjacent coils through the first connecting ends; and a second connecting piece which comprises two second connecting ends arranged at intervals along the circumferential direction and a second connecting portion connecting the two second connecting ends, the second connecting portion extends along the top surface of the mounting seat, and the second connecting piece connects two distant coils through the second connecting ends.

Description

Technical Field

[0001] This application relates to the field of motor technology, and more particularly to a connecting bar and a motor. Background Technology

[0002] Rope-based exercise equipment is a widely used type of equipment. This type of equipment typically applies resistance or power to a rope. The resistance provided by the rope when the user pulls it helps with exercise, or the rope assists the user's movement. One type of rope-based exercise equipment uses a motor to drive a reel to provide resistance or power to the rope. The motors used in this type of equipment generally need to be small and have good heat dissipation, which places higher demands on the motor design. Summary of the Invention

[0003] This application provides a connecting bus that is applied to a motor. The motor includes multiple coils arranged in a circumferential direction. The connecting bus includes: a mounting base, which is an insulating member arranged in a ring; a first connector, which includes two first connecting ends spaced apart in a circumferential direction, the first connector being disposed on the inner and / or outer side of the mounting base and connecting two adjacent coils through the first connecting ends; and a second connector, which includes two second connecting ends spaced apart in a circumferential direction and a second connecting portion connecting the two second connecting ends, the second connecting portion extending along the top surface of the mounting base, and the second connector connecting two distant coils through the second connecting ends.

[0004] In some embodiments, the first connector is assembled onto the mounting base via a plug-in method.

[0005] In some embodiments, the mounting base is provided with a slot, and the first connector further includes a plug portion for insertion into the slot, wherein the first connector end is exposed on the inside or outside of the mounting base.

[0006] In some embodiments, a protrusion is provided on the inner and / or outer side of the mounting base, and a slot is located on the protrusion and is vertically opened downward at the upper end of the protrusion. In some embodiments, the plug portion connects two first connecting ends, which are located on both sides of the plug portion; or the first connector includes a first connecting portion and two plug portions, the two first connecting ends are connected through the first connecting portion, the two plug portions are located on both sides of the two first connecting ends, the plug portion and the first connecting end are arranged at an angle, and the angle between the plug portion and the first connecting end is less than 90 degrees.

[0007] In some embodiments, the coil includes two terminals, one of which is located inside the mounting base and the other of which is located outside the mounting base; there are multiple first connectors, which are divided into two groups, one group of which is located inside the mounting base and the other group of which is located outside the mounting base, and the first connectors located inside and outside the mounting base are offset along the circumferential direction.

[0008] In some embodiments, the second connector is prefabricated or assembled in the mounting base, and the second connector extends out of the mounting base.

[0009] In some embodiments, an annular groove is provided on the top surface of the mounting base, the second connector is installed in the annular groove, and the second connector end extends out of the annular groove.

[0010] In some embodiments, the connecting bar further includes a cover plate that covers the annular groove; the number of second connectors is multiple, and the multiple second connectors are installed in the annular groove; the connecting bar further includes an insulating pad, and adjacent two second connectors are isolated by the insulating pad.

[0011] In some embodiments, the second connector is pre-formed with the mounting base and embedded within the mounting base. The second connector also includes a positioning portion connected to the second connector, the positioning portion extending out of the mounting base.

[0012] In some embodiments, the coil is formed by winding flat wire, and the connecting end of the coil is sheet-like. The first connecting end and the second connecting end are sheet-like and are stacked with the wiring end along the thickness direction.

[0013] In some embodiments, the coil's terminals, the first connection terminal, and the second connection terminal protrude from the top surface of the mounting base.

[0014] This application provides a motor for use in rope-type power output equipment. The motor includes: a housing, a stator assembly fixedly disposed within the housing; a rotor assembly rotatably disposed within the housing; and a plurality of coils arranged in a circumferential direction and a connecting bar as described above, wherein the plurality of coils and the connecting bar are located on the stator assembly or on the rotor assembly.

[0015] In some embodiments, the stator assembly includes a stator core, and a plurality of winding frames are arranged in the circumferential direction inside the stator core. Coils are formed by winding flat wires on the corresponding winding frames. The coils are formed by stacking flat wires along the thickness direction, and the stacking direction points to the center line of the stator core.

[0016] In some embodiments, the stator assembly and / or rotor assembly are provided with clearance for mounting a cooling fan.

[0017] In some embodiments, the stator assembly is fitted onto the rotor assembly; the core of the rotor assembly is annular, and the cooling fan is disposed within the annular structure of the rotor assembly; or a gap is left between the end of the stator assembly and the housing, and the cooling fan is located within the gap.

[0018] The connection bar disclosed in this application provides positioning and fixing for the first and second connectors through the mounting base. The first connector is disposed on the inner and / or outer side of the mounting base and can be used to connect two adjacent coils. The second connector extends with the top surface of the mounting base and can be used to connect two distant coils. It can be adjusted according to the coil connection requirements, and the first and second connectors can be flexibly used to connect the coils, which helps to avoid irregular wiring between coils. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is a schematic diagram of a connecting row structure in an embodiment of this application; Figure 2 This is a schematic diagram of another connecting row structure in the embodiments of this application; Figure 3 This is a schematic diagram of a first connecting member structure in an embodiment of this application; Figure 4 This is a schematic diagram of another first connector structure in the embodiments of this application; Figure 5 This is a schematic diagram of a second connector structure in an embodiment of this application; Figure 6 This is a schematic diagram of the connection structure between the connector and the coil in the embodiment of this application; Figure 7 This is an exploded view of the motor structure in the embodiment of this application; Figure 8 This is a schematic diagram of the stator core structure in the embodiments of this application; Figure 9 This is a schematic diagram of the magnetic ring mounting and rotor shaft structure in the embodiments of this application; Figure 10 This is a schematic diagram of the magnetic ring structure in the embodiment of this application; Figure 11 This is a schematic diagram of the cross-sectional structure of the post-assembled magnetic ring in the embodiments of this application; Explanation of key component symbols: Motor 1, connecting bar 10, mounting base 11, slot 111, annular groove 112, protrusion 113, first connector 12, first connecting end 121, plug-in part 122, first connecting part 123, second connector 13, second connecting end 131, second connecting part 132, positioning part 133, cover plate 14, insulating pad 15, housing 20, button mounting position 21, function button 22, stator assembly 30, stator core 31, winding frame 311, rotor assembly 40, rotor core 41, rotor shaft 42, keyway 421, groove 422, coil 50, cooling fan 60, passive fan 61, active fan 62, magnetic ring 70, housing 71, buckle 72, spline 73, magnetic component 74. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] The following reference Figure 1-11 The connecting bar 10 and the motor 1 provided in some embodiments of the present invention will be described.

[0026] An embodiment of the first aspect of the present invention provides a connecting strip 10, including a mounting base 11 and a first connecting member 12 disposed on the mounting base 11. The mounting base 11 is an insulating component, and at least one first connecting member 12 is provided. The first connecting member 12 is plugged into the mounting base 11 and has at least two first connecting ends 121 for connecting to a coil 50. Specifically, the mounting base 11 is an insulating component, which can be injection molded to support the first connecting member 12 and provide isolation, preventing the first connecting member 12 from being connected in series with other components. The first connecting member 12 is assembled onto the mounting base 11 by plugging in and has at least two first connecting ends 121. When the connecting strip 10 is assembled with a motor 1, the first connecting ends 121 are used to connect to the coil 50 to achieve the connection function. The coil 50 connected to the first connecting end 121 can be either a stator winding or a rotor winding. The plugging method of assembling the first connecting member 12 onto the mounting base 11 is simpler in structure and more convenient to assemble compared to the traditional bolt-connected assembly method.

[0027] In an optional embodiment, the connecting strip 10 includes a mounting base 11 and a second connecting member 13 disposed on the mounting base 11. The mounting base 11 is an insulator, and at least one second connecting member 13 is disposed within the mounting base 11. The second connecting member 13 has at least two second connecting ends 131 for connecting to the coil 50. Specifically, the mounting base 11 is an insulator, which can be injection molded to support the second connecting member 13 and provide isolation, preventing the second connecting member 13 from being connected in series with other components. The second connecting member 13 is prefabricated or assembled into the mounting base 11. The second connecting member 13 is a conductor and has at least two second connecting ends 131. When the connecting strip 10 is assembled with the motor 1, the second connecting ends 131 are used to connect to the coil 50 to achieve the connection function. The coil 50 connected to the second connecting end 131 can be either the stator winding coil 50 or the rotor winding coil 50.

[0028] In an optional embodiment, the connecting strip 10 includes a mounting base 11, a first connector 12 disposed on the mounting base 11, and a second connector 13. The mounting base 11 is an insulating component; there is at least one first connector 12, which is inserted into the mounting base 11 and has at least two first connection ends 121 for connecting to the coil 50; there is at least one second connector 13, which is inserted into the mounting base 11 and has at least two second connection ends 131 for connecting to the coil 50. Specifically, the mounting base 11 is an insulating component, which can be injection molded, and can support the first connector 12 and the second connector 13, while also acting as an isolation element to prevent the first connector 12 and the second connector 13 from being connected in series with other components. The first connector 12 is assembled onto the mounting base 11 by plugging in, and the second connector 13 is set into the mounting base 11 by prefabrication or subsequent assembly. Both the first connector 12 and the second connector 13 are conductors, and the first connector 12 has at least two first connection ends 121, and the second connector 13 has at least two second connection ends 131. When the connecting strip 10 is assembled onto the motor 1, the first connection ends 121 and the second connection ends 131 are used to connect the coil 50 to realize the connection function. The coil 50 connected by the first connection ends 121 and the second connection ends 131 can be either the stator winding coil 50 or the rotor winding coil 50.

[0029] The connecting strip 10 disclosed in this invention provides positioning and fixing for the connecting parts through the mounting base 11, avoiding irregular wiring between the coils 50. The installation of the connecting strip 10 is simplified by using the mounting base 11. The second connecting part 13, which is preset inside the mounting base, can directly connect to the corresponding coil 50 during installation. The first connecting part 12, which is interlocked with the mounting base 11, can be installed by first assembling the mounting base 11 onto the motor 1, and then inserting the first connecting part 12 into the mounting base 11 to connect the corresponding coil 50. Alternatively, the first connecting part 12 can be combined with the mounting base 11 and then assembled into the motor 1 to achieve the connection between the first connecting part 12 and the mounting base 11.

[0030] Please refer to Figure 6 In some embodiments, two adjacent coils 50 can be connected to each other via a first connector 12. In this case, the two first connecting ends 121 of the first connector 12 are relatively close, resulting in a smaller size for the first connector 12 and ensuring its strength during insertion and assembly. In other embodiments, two adjacent coils 50 can be connected to each other via a second connector 13. In this case, the second connecting ends 131 of the second connector 13 are far apart. The second connector 13 is located within the mounting base 11, ensuring strength and allowing for a larger design suitable for connecting non-adjacent or far-distance coils 50. It should be noted that the first connector 12 and the second connector 13 can be used individually or simultaneously. The aforementioned use of the first connector 12 to connect adjacent coils 50 and the second connector 13 to connect distant coils 50 is only one optional method and does not preclude the use of the first connector 12 to connect distant coils 50 and the second connector 13 to connect adjacent coils 50.

[0031] Please refer to Figure 1-2 In some embodiments, the mounting base 11 is provided with a first connector 12 and a second connector 13. The first connecting end 121 of the first connector 12 is arranged close to each other and can connect two adjacent coils 50. The second connecting end 131 of the second connector 13 is arranged far away and can connect a distant coil 50. By connecting the close coil 50 with the first connector 12 and the distant coil 50 with the second connector 13, the connection of the coils 50 can be adjusted according to the connection requirements of the coils 50, and the first connector 12 and the second connector 13 can be flexibly used to connect the coils 50.

[0032] Specifically, the mounting base 11 is provided with at least one slot 111 for insertion into the first connector 12; the first connector 12 also includes a plug-in portion 122 for insertion into the slot 111. For example, the mounting base 11 is annular, with slots 111 provided on its inner, outer, or both inner and outer sides. The number of slots 111 corresponds to the number of the first connector 12. After the plug-in portion 122 of the first connector 12 is inserted into the slot 111, the first connecting end 121 is exposed on the inner or outer side of the mounting base 11. At this time, after the connecting strip 10 is assembled onto the motor 1, the first connecting end 121 can be connected to the coil 50. Alternatively, the mounting base 11 can be assembled onto the motor 1 first, and then the first connector 12 can be inserted.

[0033] Please refer to Figure 1 In some embodiments, a protrusion 113 is provided on the side wall of the mounting base 11, and a slot 111 is formed on the protrusion 113. The slot 111 is formed by making a vertical groove downward at the upper end of the protrusion 113. This ensures that after the insertion part 122 of the first connector 12 is inserted into the slot 111, the first connection end 121 is exposed inside or outside the mounting base 11, which facilitates subsequent connection with the coil 50.

[0034] Please refer to Figure 3 In some embodiments, each first connector 12 includes a plug portion 122 and two first connecting ends 121. The plug portion 122 is connected to the two first connecting ends 121, and the two first connecting ends 121 are located on both sides of the plug portion 122. The middle part of the first connector 12 is the plug portion 122, and the parts extending on both sides are the first connecting ends 121. The corresponding slots 111 can be formed on the protrusions 113 protruding from the side wall of the mounting base 11. The slots 111 are vertically formed on the upper side of the protrusions 113. After the plug portion 122 is inserted into the slot 111, the two first connecting ends 121 are on the outside, which can be conveniently connected to the coil 50.

[0035] Please refer to Figure 4 In other embodiments, each first connector 12 includes two plug-in portions 122 and two first connecting ends 121. The two first connecting ends 121 are connected to each other. The two plug-in portions 122 are located on both sides of the two first connecting ends 121, and the plug-in portions 122 are set at an angle to the first connecting ends 121. The two first connecting ends 121 are connected by a long strip-shaped first connecting portion 123 and are connected to the side of the first connecting portion 123, or are integral with the first connecting portion 123. The two ends of the conductor of the first connecting portion 123 are connected to the plug-in portions 122, or the two ends are bent to form the plug-in portions 122. The angled arrangement of the plug-in portions 122 can make the connection between the first connector 12 and the slot more stable.

[0036] For example, the angle between the plug portion 122 and the first connecting end 121 is less than 90 degrees. That is, the ends of the two plug portions 122 at both ends should be opposite each other, which further improves the stability of the plug connection, and at the same time ensures that the first connector is small in size, so that the mounting base can stack more first connectors 12. Please refer to Figure 1 , 2 In some embodiments, the mounting base 11 is annular to accommodate the rotating body of the motor 1, and the coil 50 of the motor 1 is arranged along the circumferential direction. The annular mounting base 11 can also simplify the installation.

[0037] Please refer to Figure 2 In some embodiments, the mounting base 11 is provided with an annular groove 112, the second connector 13 is installed in the annular groove 112, and the second connecting end 131 extends out of the annular groove 112. In this subsequent installation method, when manufacturing the mounting base 11, the annular groove 112 is pre-made on the top surface of the mounting base 11, and an opening is left for the second connecting end 131 to extend out of the annular groove 112. Then, the second connector 13 is installed into the annular groove 112, ensuring that the second connecting end 131 extends out of the annular groove 112 from the opening.

[0038] Furthermore, the connecting strip 10 also includes a cover plate 14, which, together with the annular groove 112, fixes the second connecting member, making the installation of the second connecting member 13 more stable.

[0039] In some embodiments, there are multiple second connectors 13. When multiple second connectors 13 are installed in the annular groove 112, adjacent second connectors 13 are isolated by insulating pads 15. In this method of assembling the second connectors 13 onto the mounting base 11, in order to ensure ease of processing and assembly, the annular groove 112 is not designed with a structure to isolate adjacent connecting rows 10. Therefore, when it is necessary to install a second connector 13, an insulating pad 15 is installed between adjacent second connectors 13 for isolation to avoid direct connection of the second connectors 13.

[0040] Please refer to Figure 1 In other embodiments, the second connector 13 is embedded within the mounting base 11, and the second connecting end 131 extends out of the mounting base 11. In this way, the second connector 13 and the mounting base 11 are pre-formed, eliminating the need for subsequent assembly and greatly simplifying the assembly process.

[0041] For example, the second connector 13 and the mounting base 11 are pre-formed by injection molding. The second connector 13 also includes a positioning part 133. After molding, the positioning part 133 extends out of the mounting base 11. The positioning part 133 is used to position the second connector 13 during injection molding.

[0042] Please refer to Figure 5Regardless of whether it is installed later or prefabricated, the second connector 13 includes a second connecting portion 132, with a second connecting end 131 extending from or connecting to the side of the second connecting portion 132 at an angle to it. In the prefabricated method, a positioning portion 133 also needs to extend from or connect to the side of the second connecting portion 132. During injection molding, the positioning portion 133 positions the second connector 13 in the mold, and it is necessary to ensure that multiple second connectors 13 do not contact each other. In this way, a mounting base 11 with the second connector 13 embedded can be obtained through injection molding.

[0043] A second aspect of the present invention provides a motor 1, please refer to... Figure 7 The motor 1 includes a housing 20, a stator assembly 30, and a rotor assembly 40. The stator assembly 30 is fixedly disposed within the housing 20, and the rotor assembly 40 is rotatably disposed within the housing 20. The stator assembly 30 and / or the rotor assembly 40 are provided with coils 50 and a connecting strip 10 as described in any of the first aspect embodiments. All or part of the coils 50 are connected to a first connecting end 121 or a second connecting end 131 of the connecting strip 10. The use of the connecting strip 10 makes the design of the motor 1 simpler, easier to assemble, and more stable.

[0044] In one optional embodiment, the stator assembly 30 of the motor 1 is provided with coils 50. The connecting bar 10 includes a mounting base 11 and a first connecting member 12 and a second connecting member 13 disposed on the mounting base 11. The first connecting end 121 of the first connecting member 12 is disposed close together and can connect two adjacent coils 50, while the second connecting end 131 of the second connecting member 13 is disposed away and can connect a distant coil 50. When the stator assembly 30 is assembled, the first connecting end 121 of the first connecting member 12 connects to the adjacent coil 50, and the second connecting end 131 of the second connecting member 13 connects to the distant coil 50, thus cooperating to supply power to the coils 50. Of course, the motor 1 can also optionally provide coils 50 on the rotor assembly 40.

[0045] Furthermore, it also includes an iron core, which is ring-shaped and has multiple winding frames 311 inside. Flat wire is wound on the winding frames 311 to form a coil 50. Using flat wire to wind the coil 50 results in a smaller volume, less material, and lower cost for the same power. The larger contact area between the flat wires improves heat dissipation and heat conduction, thus enhancing the heat dissipation effect of the motor 1. Moreover, the coil 50 wound with flat wire has plate-shaped terminals. The first connecting end 121 of the first connector 12 and the second connecting end 131 of the second connector 13 are also plate-shaped, which allows for better and more convenient connection between the first and second terminals and the coil 50. Please refer to... Figure 8 In some embodiments, the stator assembly 30 adopts a winding method, the stator core 31 is annular, and multiple winding frames 311 are arranged in the circumferential direction inside it, with flat wires wound on the winding frames 311.

[0046] The heat dissipation effect has a significant impact on the performance of motor 1. When motor 1 is used in equipment that requires repeated forward and reverse rotation, such as rope-type power output equipment, the requirements for heat dissipation are even higher. In an optional embodiment, motor 1 also includes a cooling fan 60. A clearance portion for mounting the cooling fan 60 is provided on the rotor assembly 40, stator assembly 30, or both. The cooling fan 60 is installed within the clearance portion and, through rotation, accelerates airflow, thereby improving the heat dissipation effect of motor 1.

[0047] Please refer to Figure 7 and 9 In some embodiments, the cooling fan 60 is a passive fan 61, and the cooling fan 60 is disposed in the clearance part of the rotor assembly 40; if the rotor core 41 of the rotor assembly 40 is annular, the cooling fan 60 is fixedly disposed in the annular structure, and the cooling fan 60 can be driven to rotate synchronously when the rotor rotates, which can effectively improve the heat dissipation capacity of the motor 1.

[0048] However, when motor 1 needs to frequently reverse direction or rotate at low speeds, the aforementioned passive fan 61 cooling method suffers from unstable cooling capacity, being significantly affected by the forward / reverse direction and speed of motor 1. This limits its ability to improve motor 1's cooling capacity and cannot guarantee that motor 1 will operate at a suitable temperature. Therefore, please refer to... Figure 7 In other embodiments, the cooling fan 60 is an active fan 62. The cooling fan 60 is connected to the stator assembly 30 or the housing 20 and rotates independently relative to the rotor assembly 40. For example, if the iron core of the rotor assembly 40 is annular, the cooling fan 60 is located within the annular structure but does not contact the iron core; or, a gap is left between the end of the stator assembly 30 and the housing 20, and the cooling fan 60 is located within this gap. This design, where the active fan 62 dissipates heat, is unaffected by the forward or reverse rotation and speed of the motor 1, maintaining stable heat dissipation capacity and ensuring that the motor 1 is at a suitable operating temperature.

[0049] For example, the active fan 62 integrates a drive unit and is connected to the motor 1 terminal block via an FPC flexible cable. The FPC flexible cable has a certain degree of flexibility, allowing it to be arranged arbitrarily according to the spatial layout, simplifying the wiring and making the internal layout of the motor 1 more compact and miniaturized. The FPC flexible cable is located on the outside of the stator assembly 30, and a metal protective plate is provided on the side of the FPC flexible cable facing the rotor assembly 40 or the stator assembly 30. This allows the FPC flexible cable to be bent into the required shape through the metal protective plate, facilitating wiring. The metal protective plate also protects the FPC flexible cable and isolates magnetic fields, reducing the adverse effects of magnetic fields.

[0050] Please refer to Figure 9-11In one optional embodiment, a magnetic ring 70 is also included. The magnetic ring 70 is disposed on the rotor shaft 42 of the rotor assembly 40. The magnetic ring 70 and the rotor shaft 42 can be connected by adhesive bonding, which is convenient to use. Alternatively, the magnetic ring 70 and the rotor shaft 42 can be connected by structural fit, such as axial positioning by a snap fastener 72 and circumferential positioning by a spline 73, instead of adhesive bonding, avoiding excessive glue overflow or unstable connection due to insufficient glue. For example, the inner ring of the magnetic ring 70 is provided with a spline 73, which can be a continuous ring of teeth or a discontinuous, separated tooth structure. The side of the magnetic ring 70 is provided with a snap fastener 72, and the corresponding rotor shaft 42 is provided with a keyway 421 and a groove 422. When the magnetic ring 70 is installed on the rotor shaft 42, the spline 73 engages with the keyway 421, and the snap fastener 72 is engaged in the groove 422.

[0051] Furthermore, the magnetic ring 70 includes a housing 71 and a magnetic component 74 embedded in the housing 71. When it is connected to the rotor shaft 42 by means of structural fit, the snap fasteners 72, splines 73 and other structures for connection provided on the magnetic ring 70 are all provided on the housing 71.

[0052] In some embodiments, the housing 71 is injection molded outside the magnetic component 74. In this way, the magnetic component 74 is magnetized after the injection molding process has cooled down, so as to avoid the high temperature during injection molding affecting the magnetism of the magnetic component 74.

[0053] Please refer to Figure 11 In other embodiments, the outer shell 71 is provided separately and is assembled outside the magnetic component 74. The separately manufactured outer shell 71 includes at least two parts and is connected into a whole by snap-fit ​​connection and interference fit, and has a cavity inside, into which the magnetic component 74 is installed.

[0054] In an optional embodiment, the housing 20 is further provided with a button mounting position 21 for mounting a function button 22. The function button 22 is connected to the motor 1 terminal block via an FPC cable. The function button 22 can be a button related to the function of the motor 1, such as the switch of the motor 1 or the control switch of the active fan 62; it can also be a button related to the function of the device on which the motor 1 is located. Especially when there is a lack of space on the device to set the button, the button can be set on the motor 1, which provides more installation space.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A connecting busbar applied to a motor, the motor including a plurality of coils arranged in a circumferential direction, characterized in that, The connecting bar includes: Mounting base, wherein the mounting base is an insulating component arranged in a ring shape; A first connector, comprising two first connecting ends spaced apart along the circumferential direction, the first connector being disposed on the inner and / or outer side of the mounting base, and connecting two adjacent coils through the first connecting ends; The second connector includes two second connecting ends spaced apart along the circumferential direction and a second connecting portion connecting the two second connecting ends. The second connecting portion extends along the top surface of the mounting base, and the second connector connects two distant coils through the second connecting ends.

2. The connecting bar according to claim 1, characterized in that, The first connector is assembled onto the mounting base by a plug-in method.

3. The connecting bar according to claim 2, characterized in that, The mounting base is provided with a slot, and the first connector further includes a plug-in portion for insertion into the slot, wherein the first connector end is exposed on the inside or outside of the mounting base.

4. The connecting bar according to claim 3, characterized in that, The mounting base has a protrusion on its inner and / or outer side, and the slot is located on the protrusion and is vertically opened downward at the upper end of the protrusion.

5. The connecting bar according to claim 3, characterized in that, The plug-in portion connects to the two first connecting ends, and the two first connecting ends are located on both sides of the plug-in portion; or The first connector includes a first connecting portion and two plug-in portions. The two first connecting ends are connected through the first connecting portion. The two plug-in portions are located on both sides of the two first connecting ends. The plug-in portions are set at an angle to the first connecting ends. The angle between the plug-in portions and the first connecting ends is less than 90 degrees.

6. The connecting bar according to claim 1, characterized in that, The coil includes two terminals, one of which is located inside the mounting base and the other of which is located outside the mounting base; The number of the first connectors is multiple and they are divided into two groups. One group of the first connectors is located on the inner side of the mounting base, and the other group of the first connectors is located on the outer side of the mounting base. The first connectors located on the inner side and the first connectors located on the outer side are offset along the circumferential direction.

7. The connecting bar according to claim 1, characterized in that, The second connector is installed in the mounting base by prefabrication or subsequent assembly, and the second connector extends out of the mounting base.

8. The connecting bar according to claim 7, characterized in that, The top surface of the mounting base is provided with an annular groove, the second connector is installed in the annular groove, and the second connector end extends out of the annular groove.

9. The connecting bar according to claim 8, characterized in that, The connecting bar also includes a cover plate that fastens the annular groove; The number of the second connectors is multiple, and the multiple second connectors are installed in the annular groove. The connecting row also includes an insulating pad, and adjacent two second connectors are isolated by the insulating pad.

10. The connecting bar according to claim 7, characterized in that, The second connector is pre-formed with the mounting base and embedded in the mounting base. The second connector also includes a positioning part connected to the second connecting part, and the positioning part extends out of the mounting base.

11. The connecting bar according to any one of claims 1-10, characterized in that, The coil is formed by winding flat wire, and the connecting end of the coil is sheet-shaped. The first connecting end and the second connecting end are sheet-shaped and are stacked with the terminal along the thickness direction.

12. The connecting bar according to any one of claims 1-10, characterized in that, The coil's terminals, the first connection terminal, and the second connection terminal protrude from the top surface of the mounting base.

13. A motor used in rope-type power output equipment, characterized in that, The motor includes: case, A stator assembly, wherein the stator assembly is fixedly disposed within the housing; Rotor assembly, the rotor assembly being rotatably disposed within the housing; and A plurality of coils arranged in a circumferential direction and a connecting bar as described in any one of claims 1-12, wherein the plurality of coils and the connecting bar are located on the stator assembly or on the rotor assembly.

14. The motor according to claim 13, characterized in that, The stator assembly includes a stator core, and multiple winding frames are arranged in the circumferential direction inside the stator core. The coil is formed by winding flat wire on the corresponding winding frame. The coil is formed by stacking the flat wires along the thickness direction, with the stacking direction pointing towards the center line of the stator core.

15. The motor according to claim 13, characterized in that, The stator assembly and / or the rotor assembly are provided with clearance for mounting the cooling fan.

16. The motor according to claim 15, characterized in that, The stator assembly is fitted onto the rotor assembly; The rotor assembly has a ring-shaped iron core, and the cooling fan is disposed within the ring-shaped structure of the rotor assembly; or A gap is left between the end of the stator assembly and the housing, and the cooling fan is located within the gap.

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