Stator, axial flux motor, electric driving device, electric driving system and electric equipment

Abstract

The invention provides a stator, an axial magnetic flux motor, an electric driving device, an electric driving system and electric equipment, the stator comprises a stator shell, a stator main body and a leading-out wire, the axial side of the stator shell is provided with a wire outlet, the stator main body is accommodated in the stator shell, one end of the leading-out wire is connected with the stator main body, and the other end of the leading-out wire penetrates through the wire outlet. According to the stator provided by the invention, the wire outlet is formed in the axial side of the stator shell, and the leading-out wire penetrates through the wire outlet, so that the leading-out wire can extend outwards through the axial side of the stator shell, the axial space of the axial magnetic flux motor can be effectively utilized, a wiring structure does not need to be arranged on the peripheral side of the stator shell, and the cost is reduced. And the radial size of the stator is effectively reduced, so that the radial size of the axial flux motor is effectively reduced.

Description

Technical Field

[0001] The present application belongs to the field of motor technology, and more specifically, relates to a stator, an axial flux motor, an electric drive device, an electric drive system and an electric device. Background Art

[0002] Axial flux motors are motors with axial magnetic flux direction. As axial flux motors have smaller axial dimensions, they are becoming more and more popular. However, axial flux motors have larger radial dimensions. How to reduce the radial dimensions of axial flux motors is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a stator, an axial flux motor, an electric drive device, an electric drive system and an electric device to solve the technical problem of large radial dimensions of the axial flux motor in the related art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: to provide a stator, which is applied to an axial flux motor, and the stator includes:

[0005] The stator housing has a wire outlet opening on its axial side;

[0006] The stator body is accommodated in the stator shell;

[0007] A lead wire, one end of which is connected to the stator body, and the other end of which is passed through the wire outlet.

[0008] The stator provided in the embodiment of the present application has at least the following beneficial effects: the stator provided in the embodiment of the present application opens a wire outlet on the axial side of the stator shell, and passes the lead wire through the wire outlet, so that the lead wire can extend outward through the axial side of the stator shell. In this way, the axial space of the axial flux motor can be effectively utilized without providing a wiring structure on the outer peripheral side of the stator shell, thereby effectively reducing the radial size of the stator, thereby effectively reducing the radial size of the axial flux motor.

[0009] In some embodiments of the present application, the stator further includes a seal, which is disposed between the lead-out wire and an edge of the wire outlet.

[0010] By adopting the above technical solution, the gap between the lead wire and the edge of the outlet is effectively blocked, which not only reduces the risk of leakage of substances contained in the stator shell, but also improves the situation of external substances such as water vapor and dust entering the stator shell, thereby effectively improving the reliability of the stator.

[0011] In some embodiments of the present application, the seal includes a connecting portion and a sealing portion, the number of lead wires is multiple, the connecting portion is used to connect the multiple lead wires, and the sealing portion is arranged between the connecting portion and the edge of the wire outlet.

[0012] By adopting the above technical solution, the seal can simultaneously seal the gaps between multiple lead wires and the edges of the outlet, without the need to separately set a seal on each lead wire, effectively simplifying the sealing structure between the lead wires and the edges of the outlet, thereby effectively reducing the production cost of the stator and effectively improving the assembly efficiency of the stator.

[0013] In some embodiments of the present application, the connecting portion is injection-molded and connected to a plurality of lead wires.

[0014] By adopting the above technical solution, it is not only convenient to connect a plurality of lead wires together, but also the gap between the connecting portion and the lead wires is effectively blocked, thereby further improving the reliability of the stator.

[0015] In some embodiments of the present application, a slot is provided on the outer peripheral side of the sealing member, and the edge of the wire outlet is clamped in the slot.

[0016] By adopting the above technical solution, the risk of the seal being separated from the stator housing is effectively reduced, thereby further improving the reliability of the stator.

[0017] In some embodiments of the present application, the stator further includes a cooling medium, and the cooling medium is contained in the stator shell.

[0018] By adopting the above technical solution, the stator body can be in direct contact with the cooling medium. In other words, the heat generated by the stator body during operation can be directly transferred to the cooling medium, thereby effectively improving the cooling efficiency of the stator and effectively improving the reliability of the stator.

[0019] In some embodiments of the present application, the lead wire includes a flexible part and a rigid part, one end of the rigid part is connected to the stator body, the other end of the rigid part is connected to one end of the flexible part, and the other end of the flexible part is passed through the wire outlet.

[0020] By adopting the above technical solution, after the rigid part is connected to the stator body, the flexible part can be bent so that the end of the flexible part away from the rigid part is aligned with the wire outlet, thereby effectively improving the positioning accuracy of the lead wire, facilitating the flexible part to be inserted into the wire outlet, and effectively improving the work efficiency of the lead wire assembly operation.

[0021] In some embodiments of the present application, the flexible portion includes a plurality of sheets, and the plurality of sheets are stacked and connected.

[0022] By adopting the above technical solution, the flexible portion can be made soft so as to facilitate the bending operation of the flexible portion.

[0023] In some embodiments of the present application, one end of the plurality of sheets close to the rigid portion is fused into one piece and welded to the rigid portion.

[0024] By adopting the above technical solution, the connection strength between the flexible part and the rigid part is effectively improved, thereby effectively improving the reliability of the stator.

[0025] In some embodiments of the present application, one end of the plurality of sheets away from the rigid portion is welded into one body and passed through the wire outlet.

[0026] By adopting the above technical solution, the connection strength between the flexible part and the external connecting piece is effectively improved, thereby effectively improving the reliability of the stator.

[0027] In some embodiments of the present application, the flexible portion includes a connecting section, a bending section and a lead-out section, the bending section is connected between one end of the connecting section and one end of the lead-out section, the other end of the connecting section is connected to the rigid portion, and the other end of the lead-out section is passed through the wire outlet.

[0028] By adopting the above technical solution, it is convenient to align the lead-out section with the wire outlet and extend it outward through the wire outlet, thereby effectively improving the work efficiency of the assembly operation of the lead-out wire.

[0029] In some embodiments of the present application, the bending section has an arc-shaped structure.

[0030] By adopting the above technical solution, the bending stress of the flexible part is effectively reduced, thereby effectively reducing the risk of breakage of the lead wire.

[0031] An embodiment of the present application also provides an axial flux motor, comprising the stator described in any one of the above embodiments.

[0032] The axial flux motor provided in the embodiments of the present application has at least the following beneficial effects: since the axial flux motor provided in the embodiments of the present application adopts the stator described in any of the above embodiments, the axial size of the axial flux motor is effectively reduced.

[0033] In some embodiments of the present application, the number of stators is two, and the axial flux motor further includes a rotor, which is disposed between the two stators.

[0034] By adopting the above technical solution, the volume of the dual-stator axial flux motor is effectively reduced.

[0035] In some embodiments of the present application, a wire outlet is provided on a side of the stator housing facing the rotor.

[0036] By adopting the above technical solution, the space between the two stators can be effectively utilized without increasing the axial size of the axial flux motor, and there is no need to set a wiring structure on the outer peripheral side of the stator shells of the two stators, thereby effectively reducing the radial size of the axial flux motor.

[0037] In some embodiments of the present application, the stator body includes an iron core and a winding wound around the iron core, and the two windings are connected in series or in parallel through lead wires.

[0038] By adopting the above technical solution, the connection method of the windings of the two stators can be selected according to actual application needs, so as to reasonably adjust the number of turns of each phase line of the winding, thereby realizing flexible adjustment of the power of the axial flux motor.

[0039] In some embodiments of the present application, the axial flux motor further includes two rotors, and the stator is disposed between the two rotors.

[0040] By adopting the above technical solution, the volume of the dual-rotor axial flux motor is effectively reduced.

[0041] In some embodiments of the present application, the stator body includes a first iron core, a second iron core, a first winding wound on the first iron core, and a second winding wound on the second iron core. The lead wire is divided into a first lead wire connected to the first winding and a second lead wire connected to the second winding. Outlets are opened on both axial sides of the stator shell. The first lead wire is passed through the outlet located on one axial side of the stator shell, and the second lead wire is passed through the outlet located on the other axial side of the stator shell.

[0042] By adopting the above technical solution, the two axial side spaces of the stator can be effectively utilized without increasing the axial size of the axial flux motor, and there is no need to set a wiring structure on the outer peripheral side of the stator shell of the two stators, thereby effectively reducing the radial size of the axial flux motor.

[0043] In some embodiments of the present application, the stator body includes a first core, a second core, a first winding wound around the first core, and a second winding wound around the second core, and the first winding and the second winding are connected in series or in parallel via lead wires.

[0044] By adopting the above technical solution, the connection method of the first winding and the second winding can be selected according to actual application needs, so as to reasonably adjust the number of turns of each phase line of the first winding and the number of turns of each phase line of the second winding, thereby realizing flexible adjustment of the power of the axial flux motor.

[0045] An embodiment of the present application also provides an electric drive device, comprising the axial flux motor described in any one of the above embodiments.

[0046] The electric drive device provided by the embodiment of the present application has at least the following beneficial effects: Since the electric drive device provided by the embodiment of the present application adopts the axial flux motor described in any of the above embodiments, the volume of the electric drive device is effectively reduced.

[0047] An embodiment of the present application also provides an electric drive system, comprising the above-mentioned electric drive device.

[0048] The electric drive system provided by the embodiment of the present application has at least the following beneficial effects: Since the electric drive system provided by the embodiment of the present application adopts the above-mentioned electric drive device, the volume of the electric drive system is effectively reduced.

[0049] An embodiment of the present application also provides an electric device, comprising the above-mentioned electric drive system.

[0050] The electric device provided in the embodiment of the present application has at least the following beneficial effects: Since the electric device provided in the embodiment of the present application adopts the above-mentioned electric drive system, the volume of the electric device is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0052] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0053] Figure 2 A schematic diagram of the explosion structure of a battery provided in an embodiment of the present application;

[0054] Figure 3 A schematic diagram of the structure of an electric drive device provided in an embodiment of the present application;

[0055] Figure 4 A schematic diagram of the structure of an axial flux motor provided in one embodiment of the present application;

[0056] Figure 5 for Figure 4 The connection structure of the two stator bodies in the axial flux motor shown in FIG. Figure 1 ;

[0057] Figure 6 for Figure 4 The connection structure of the two stator bodies in the axial flux motor shown in FIG. Figure 2 ;

[0058] Figure 7 A schematic diagram of the structure of an axial flux motor provided by another embodiment of the present application;

[0059] Figure 8 A schematic diagram of the structure of the lead wire provided in the embodiment of the present application;

[0060] Fig. 9A schematic diagram of the structure of the seal provided in an embodiment of the present application.

[0061] Among them, the reference numerals in the figure are:

[0062] 1000. Vehicles;

[0063] 100. Electric drive system;

[0064] 10. Electric drive device;

[0065] 11. Axial flux motor; 111. Stator; 1111. Stator housing; 1112. Stator body; 1113. Lead wire; 1113a. First lead wire; 1113b. Second lead wire; 11131. Flexible part; 11132. Rigid part; 11133. Connecting section; 11134. Bending section; 11135. Leading section; 1114. Sealing member; 1114a. First sealing member; 1114b. Second sealing member; 11141. Connecting member; 11142. Sealing member; 11143. Slot; 1115. Electric input terminal; 1116. Electric output terminal; 112. Rotor; 12. Controller; 13. Speed ​​change mechanism;

[0066] 20. Battery;

[0067] 21, box body; 211, first part; 212, second part;

[0068] 22. Battery cell. DETAILED DESCRIPTION

[0069] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0070] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0071] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0072] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] The motor is a power device of an electric device. The motor is used to convert electrical energy into mechanical energy to drive the electric device. Among them, the axial flux motor refers to a motor in which the magnetic flux direction is axial and the current-carrying conductor is placed radially. The axial flux motor usually includes a rotor and a stator. The rotor and the stator are roughly disc-shaped and arranged along the axial direction of the axial flux motor. During the operation of the axial flux motor, the rotor rotates while the stator is fixed. The stator usually includes a stator shell and a stator body. The stator body is arranged in the stator shell to separate the stator body from the rotor and other components of the axial flux motor.

[0074] In the related art, the lead wire of the stator is connected to the stator body and extends from the outer peripheral side of the stator body toward the outer peripheral side of the stator shell. The lead wire passes through the outer peripheral side of the stator shell and extends outward to be connected to the external connection member. However, since the lead wire is protruding relative to the outer peripheral side of the stator shell, the inner diameter of the housing of the axial flux motor also needs to be increased to avoid the lead wire, but this will cause the radial size of the axial flux motor to increase.

[0075] In order to reduce the radial size of the axial flux motor, the stator provided in the embodiment of the present application has an outlet opening on the axial side of the stator shell, and the lead wire is passed through the outlet opening, so that the lead wire can extend outward through the axial side of the stator shell. In this way, the axial space of the axial flux motor can be effectively utilized without providing a wiring structure on the outer peripheral side of the stator shell, thereby effectively reducing the radial size of the stator, thereby effectively reducing the radial size of the axial flux motor.

[0076] The axial flux motor provided in the embodiment of the present application can be applied to electric equipment, which may be but is not limited to vehicles, ships, airplanes, spacecraft, excavators, cranes, lifts, elevators, etc., and is not specifically limited here.

[0077] For the convenience of description, the following embodiments are described by taking the electric device of one embodiment of the present application as a vehicle as an example.

[0078] See also Figure 1 , Figure 1The schematic diagram of the structure of the vehicle 1000 provided in the embodiment of the present application. According to the power source, the vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle or an extended-range vehicle, etc. According to the driving mode, the vehicle 1000 can be a front-wheel drive vehicle, a rear-wheel drive vehicle or a four-wheel drive vehicle. The vehicle 1000 includes a vehicle body and an electric drive system 100.

[0079] The vehicle body is the main supporting component of the vehicle 1000, and the vehicle body has a cabin and a driving cabin, wherein the cabin is used to accommodate the power mechanism, electric control mechanism, transmission mechanism, etc. of the vehicle 1000, and the driving cabin is used to provide operating space and riding space for the driver and passengers. When the vehicle 1000 is a front-wheel drive vehicle, the cabin is arranged at the head of the vehicle body, that is, the cabin is the front cabin; when the vehicle 1000 is a rear-wheel drive vehicle, the cabin is arranged at the rear of the vehicle body, that is, the cabin is the rear cabin; when the vehicle 1000 is a four-wheel drive vehicle, the cabin is divided into a front cabin and a rear cabin, the front cabin is arranged at the head of the vehicle body, and the rear cabin is arranged at the rear of the vehicle body. The driving cabin is arranged between the head and the rear of the vehicle body.

[0080] The electric drive system 100 is a power system of the vehicle 1000, and is used to convert electrical energy into mechanical energy and output the mechanical energy to the wheels of the vehicle 1000 to drive the vehicle 1000. The electric drive system 100 is disposed on the vehicle body, and specifically, a part of the electric drive system 100 can be disposed in the cabin, and another part of the electric drive system 100 can be disposed at the bottom of the vehicle body.

[0081] See also Figure 1 The electric drive system 100 provided in the embodiment of the present application includes an electric drive device 10 and a battery 20 .

[0082] The electric drive device 10 is used to convert the electric energy provided by the battery 20 into mechanical energy and output the mechanical energy to the wheels of the vehicle 1000 to drive the vehicle 1000. The electric drive device 10 is installed in the cabin. Specifically, when the vehicle 1000 is a front-wheel drive vehicle, the electric drive device 10 is installed in the front cabin and is used to output the mechanical energy to the front wheels of the vehicle 1000 to drive the vehicle 1000; when the vehicle 1000 is a rear-wheel drive vehicle, the electric drive device 10 is installed in the rear cabin and is used to output the mechanical energy to the rear wheels of the vehicle 1000 to drive the vehicle 1000; when the vehicle 1000 is a four-wheel drive vehicle, there are two electric drive devices 10, one electric drive device 10 is installed in the front cabin and is used to output the mechanical energy to the front wheels of the vehicle 1000, and the other electric drive device 10 is installed in the rear cabin and is used to output the mechanical energy to the rear wheels of the vehicle 1000 to drive the vehicle 1000.

[0083] See also Figure 3The electric drive device 10 includes an axial flux motor 11, which is the main power output component of the electric drive device 10 and is used to convert the electrical energy provided by the battery 20 into mechanical energy. In addition, the axial flux motor 11 can also be used as a generator, for example, it can convert mechanical energy into electrical energy when kinetic energy is recovered. The number of axial flux motors 11 can be one or more. In some embodiments, the number of axial flux motors 11 is two, and the two axial flux motors 11 are coaxially arranged, that is, the central axes of the two axial flux motors 11 coincide with each other. The electric drive device 10 may further include a speed change mechanism 13, which is a power transmission mechanism of the electric drive device 10. The speed change mechanism 13 has a power input end and a power output end. The power input end of the speed change mechanism 13 is connected to the rotating shaft of the axial flux motor 11, and the power output end of the speed change mechanism 13 is connected to the wheels of the vehicle 1000. The speed change mechanism 13 can change the speed and torque output by the speed change mechanism 13 relative to the axial flux motor 11 to transfer the above mechanical energy to the wheels of the vehicle 1000. For example, the speed change mechanism 13 transfers the above mechanical energy to the wheels of the vehicle 1000 by reducing the speed and increasing the torque relative to the axial flux motor 11. For another example, the speed change mechanism 13 transfers the above mechanical energy to the wheels of the vehicle 1000 by increasing the speed and reducing the torque relative to the axial flux motor 11. Optionally, the speed change mechanism 13 may be, but is not limited to, a pinion speed change mechanism, a worm speed change mechanism, a planetary gear speed change mechanism, a continuously variable speed change mechanism, etc., which are not specifically limited herein. The electric drive device 10 may also include a controller 12, which is used to convert the direct current output by the battery 20 into alternating current and transmit the alternating current to the axial flux motor 11, and is also used to control the operation of the axial flux motor 11, for example, controlling the start and stop, speed, torque, etc. of the axial flux motor 11.

[0084] The axial flux motor 11 includes a stator 111 and a rotor 112, wherein the rotor 112 is the rotating part of the axial flux motor 11, and the stator 111 is the fixed part of the axial flux motor 11. The axial flux motor 11 may also include a housing, which is used to provide an installation environment for the stator 111 and the rotor 112, and is also used as a supporting component of the axial flux motor 11. Optionally, the housing may be an integrally formed component, or an assembled component assembled from multiple parts. The material of the housing may be, but is not limited to, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and is not specifically limited here.

[0085] The battery 20 is used to provide electric energy for the electric drive device 10. The battery 20 can be arranged at the bottom, head or tail of the vehicle 1000. Figure 2 , Figure 2Schematic diagram of an explosion of a battery 20 provided in an embodiment of the present application. The battery 20 includes a box 21 and a battery cell 22, and the battery cell 22 is contained in the box 21. Among them, the box 21 is used to provide a storage space for the battery cell 22, and the box 21 can adopt a variety of structures. In some embodiments, the box 21 may include a first part 211 and a second part 212, and the first part 211 and the second part 212 cover each other, and the first part 211 and the second part 212 jointly define a storage space for accommodating the battery cell 22. The second part 212 can be a hollow structure with one end open, and the first part 211 can be a plate-like structure. The first part 211 is covered on the open side of the second part 212, so that the first part 211 and the second part 212 jointly define a storage space; the first part 211 and the second part 212 can also be hollow structures with one side open, and the open side of the first part 211 is covered on the open side of the second part 212. Of course, the box body 21 formed by the first part 211 and the second part 212 can be in various shapes, such as a cylinder, a cuboid, etc.

[0086] In some embodiments, the box 21 may be a part of the chassis structure of the vehicle 1000. For example, part of the box 21 may become at least a part of the floor of the vehicle 1000, or part of the box 21 may become at least a part of the cross beam and longitudinal beam of the vehicle 1000.

[0087] Of course, in some embodiments, the battery 20 may not include the box body 21 , but instead a plurality of battery cells 22 may be electrically connected and formed into a whole through necessary fixing structures and then assembled into the vehicle 1000 .

[0088] In the battery 20, there may be multiple battery cells 22, and the multiple battery cells 22 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 22 are both connected in series and in parallel. The multiple battery cells 22 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 22 is accommodated in the box 21. Of course, the battery 20 may also be a battery module formed by connecting multiple battery cells 22 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 21. The battery 20 may also include other functional components, for example, the battery 20 may also include a busbar for realizing electrical connection between the multiple battery cells 22.

[0089] Each battery cell 22 may be a secondary battery or a primary battery, wherein a secondary battery refers to a battery cell 22 that can be used continuously by activating the active material by charging after the battery cell 22 is discharged, and a primary battery refers to a battery cell 22 that cannot be used continuously by activating the active material by charging after the power of the battery cell 22 is exhausted; the battery cell 22 may also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto. The battery cell 22 may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell 22 of other shapes, wherein the prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and a multi-prismatic battery cell, wherein the multi-prismatic battery cell is, for example, a hexagonal battery cell, etc., and the present application has no particular restrictions.

[0090] The stator 111 provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0091] First, please also refer to Figure 4 and Figure 7 The embodiment of the present application provides a stator 111, which is applied to an axial flux motor 11. The stator 111 includes a stator shell 1111, a stator body 1112 and a lead wire 1113. An outlet is provided on the axial side of the stator shell 1111. The stator body 1112 is accommodated in the stator shell 1111. One end of the lead wire 1113 is connected to the stator body 1112, and the other end of the lead wire 1113 is passed through the outlet.

[0092] The stator case 1111 is used to provide an internal environment for the stator 111. Optionally, the stator case 1111 may be an integrally formed component or an assembled component assembled from a plurality of parts. The material of the stator case 1111 may be, but is not limited to, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not specifically limited herein. In some embodiments, when the stator case 1111 includes a plurality of parts, some parts of the stator case 1111 may be made of metal materials such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and other parts of the stator case 1111 may be made of plastic, which is not specifically limited herein.

[0093] The axial side of the stator case 1111 refers to the side of the stator case 1111 that is passed through by the central axis of the stator 111. The outlet is opened on the axial side of the stator case 1111. It can be understood that the outlet runs through the axial side of the stator case 1111 so that the internal environment of the stator 111 is connected to the external environment through the outlet. The shape of the outlet can be, but is not limited to, circular, square, elliptical, triangular, etc., and is not specifically limited here.

[0094] The stator body 1112 is the main part of the stator 111. The stator body 1112 is magnetically coupled with the rotor 112 to drive the rotor 112 to rotate. The stator body 1112 may include an iron core and a winding, the winding is wound around the iron core, and the iron core and the winding together constitute the magnetic circuit of the axial flux motor 11. When the winding is energized, the winding generates an electromagnetic field, which is magnetically coupled with the rotor 112 to drive the rotor 112 to rotate. In some embodiments, the iron core may be an assembled component assembled from multiple parts, for example, the iron core is formed by stacking multiple punching sheets. In other implementations, the iron core may also be an integrally formed component, for example, the iron core is integrally formed by a casting process. In some embodiments, the stator body 1112 may also include a base, and multiple iron cores are fixedly arranged on the base and are arranged around the rotating shaft of the rotor 112. An axial cavity may be opened in the middle of the base, and the rotating shaft of the rotor 112 is passed through the axial cavity.

[0095] Lead wire 1113 is a component for inputting or outputting current of the above-mentioned winding. One end of lead wire 1113 is electrically connected to the winding, and the other end of lead wire 1113 is passed through the wire outlet and electrically connected to the external connector. The connection method between lead wire 1113 and the winding or external connector can be, but not limited to, welding, fastening connection, etc., which is not specifically limited here. Lead wire 1113 can be a round wire or a flat wire. The material of lead wire 1113 can be, but not limited to, copper, aluminum, aluminum alloy, iron, stainless steel, etc., which is not specifically limited here.

[0096] The stator 111 provided in the embodiment of the present application opens a wire outlet on the axial side of the stator shell 1111, and passes the lead wire 1113 through the wire outlet, so that the lead wire 1113 can extend outward through the axial side of the stator shell 1111. In this way, the axial space of the axial flux motor 11 can be effectively utilized without providing a wiring structure on the outer peripheral side of the stator shell 1111, thereby effectively reducing the radial size of the stator 111, thereby effectively reducing the radial size of the axial flux motor 11.

[0097] In some embodiments of this application, please refer to Figure 4 and Figure 7 The stator 111 further includes a seal 1114, which is disposed between the lead wire 1113 and the edge of the wire outlet.

[0098] The seal 1114 is a component for blocking the gap between the lead-out line 1113 and the edge of the outlet. In some embodiments, the seal 1114 can be an integrally formed component, for example, the seal 1114 is made of a flexible material through an integral molding process. In other embodiments, the seal 1114 can be an assembled component assembled from multiple parts, for example, a part of the seal 1114 is made of a rigid material and is arranged on the lead-out line 1113, and another part of the seal 1114 is made of a flexible material and pressed between the edge of the outlet and the outer peripheral side of the rigid material of the seal 1114. It should be noted that the above-mentioned flexible material can be but not limited to rubber, silicone, etc., which is not specifically limited here, and the above-mentioned rigid material can be but not limited to metal, hard plastic, etc., which is not specifically limited here. It can be understood that the outer contour shape of the seal 1114 is adapted to the shape of the outlet, for example, when the shape of the outlet is circular, the outer contour shape of the seal 1114 is also circular.

[0099] By adopting the above technical solution, the gap between the lead wire 1113 and the edge of the outlet is effectively blocked, which not only reduces the risk of leakage of substances contained in the stator shell 1111, but also improves the situation of external substances such as water vapor and dust entering the stator shell 1111, thereby effectively improving the reliability of the stator 111.

[0100] In some embodiments of this application, please refer to Fig. 9 The sealing member 1114 includes a connecting portion 11141 and a sealing portion 11142. The number of lead wires 1113 is multiple. The connecting portion 11141 is used to connect the multiple lead wires 1113. The sealing portion 11142 is arranged between the connecting portion 11141 and the edge of the wire outlet.

[0101] The sealing portion 11142 is a main part of the sealing member 1114 . It can be understood that the sealing portion 11142 is made of a flexible material and is used to seal the gap between the outer peripheral side of the connecting portion 11141 and the edge of the wire outlet.

[0102] The connection part 11141 is a part of the seal 1114 used to connect the multiple lead wires 1113. In some embodiments, the connection part 11141 can be made of a rigid material. For example, the connection part 11141 is formed on the multiple lead wires 1113 by injection molding of a hard plastic to connect the multiple lead wires 1113. Of course, in other embodiments, the connection part 11141 can also be made of a flexible material.

[0103] By adopting the above technical solution, the seal 1114 can simultaneously seal the gaps between multiple lead wires 1113 and the edge of the outlet, without having to separately set a seal 1114 on each lead wire 1113, thereby effectively simplifying the sealing structure between the lead wire 1113 and the edge of the outlet, thereby effectively reducing the production cost of the stator 111 and effectively improving the assembly efficiency of the stator 111.

[0104] In some embodiments of the present application, the connection portion 11141 is injection-molded and connected to the plurality of lead wires 1113 .

[0105] In other words, in this embodiment, the connecting portion 11141 is made of plastic. Specifically, during the manufacturing process, a plurality of lead wires 1113 are placed in a molding cavity of a mold, and raw materials are injected into the molding cavity until the molding cavity is filled with the raw materials. After the raw materials are solidified, the above-mentioned connecting portion 11141 is formed and the plurality of lead wires 1113 are connected together.

[0106] By adopting the above technical solution, it is not only convenient to connect multiple lead wires 1113 together, but also the gap between the connecting portion 11141 and the lead wire 1113 is effectively blocked, thereby further improving the reliability of the stator 111.

[0107] In some embodiments of this application, please refer to Fig. 9 A slot 11143 is provided on the outer peripheral side of the sealing member 1114 , and the edge of the wire outlet is clamped in the slot 11143 .

[0108] The card slot 11143 is a portion recessed on the outer circumference of the seal 1114. The card slot 11143 extends along the circumference of the seal 1114 to form a closed loop structure, and the edge of the outlet is inserted into the card slot 11143 to fix the seal 1114 relative to the stator housing 1111. In some embodiments, when the seal 1114 includes a connecting portion 11141 and a sealing portion 11142, the card slot 11143 is recessed on the outer circumference of the sealing portion 11142.

[0109] By adopting the above technical solution, the risk of the sealing member 1114 being separated from the stator housing 1111 is effectively reduced, thereby further improving the reliability of the stator 111.

[0110] Of course, there may be various ways to fix the seal 1114 to the stator housing 1111 . For example, glue may be applied between the seal 1114 and the edge of the wire outlet to bond and fix the seal 1114 to the stator housing 1111 .

[0111] In some embodiments of the present application, the stator 111 further includes a cooling medium (not shown), and the cooling medium is accommodated in the stator housing 1111 .

[0112] The cooling medium is a medium used to absorb the heat generated by the stator body 1112. In some embodiments, the cooling medium can be statically accommodated in the stator housing 1111. In other embodiments, the stator housing 1111 is provided with a liquid inlet and a liquid outlet, and the cooling medium can enter the stator housing 1111 through the liquid inlet and leave the stator housing 1111 through the liquid outlet, so that the cooling medium can cool the stator body 1112 in a circulating flow. Optionally, the cooling medium can be, but is not limited to, cooling oil, cooling water, etc., which is not specifically limited here.

[0113] By adopting the above technical solution, the stator body 1112 can be in direct contact with the cooling medium. In other words, the heat generated by the stator body 1112 during operation can be directly transferred to the cooling medium, thereby effectively improving the cooling efficiency of the stator 111 and effectively improving the reliability of the stator 111.

[0114] In some embodiments of this application, please refer to Figure 8 The lead wire 1113 includes a flexible portion 11131 and a rigid portion 11132, one end of the rigid portion 11132 is connected to the stator body 1112, the other end of the rigid portion 11132 is connected to one end of the flexible portion 11131, and the other end of the flexible portion 11131 is passed through the wire outlet.

[0115] It can be understood that the rigidity of the flexible portion 11131 is less than the rigidity of the rigid portion 11132. One end of the rigid portion 11132 is connected to the stator body 1112, which means that the rigid portion 11132 is electrically connected to the winding of the stator body 1112. The connection method between the rigid portion 11132 and the flexible portion 11131 can be, but is not limited to, welding, fastening connection, etc., which is not specifically limited here.

[0116] By adopting the above technical solution, after the rigid part 11132 is connected to the stator body 1112, the flexible part 11131 can be bent so that the end of the flexible part 11131 away from the rigid part 11132 is aligned with the wire outlet, thereby effectively improving the positioning accuracy of the lead wire 1113, facilitating the insertion of the flexible part 11131 into the wire outlet, and effectively improving the work efficiency of the assembly operation of the lead wire 1113.

[0117] In some embodiments of the present application, the flexible portion 11131 includes a plurality of sheets (not shown), and the plurality of sheets are stacked and connected.

[0118] The plurality of sheets are stacked and connected in the thickness direction of the sheets. There are many ways to connect two adjacent sheets, for example, the two adjacent sheets are bonded together; or the edges of the two adjacent sheets are welded together, which is not specifically limited here.

[0119] By adopting the above technical solution, the flexible portion 11131 can be made soft so that the flexible portion 11131 can be bent.

[0120] In some embodiments of the present application, a plurality of sheets are fused into one piece at one end close to the rigid portion 11132 and welded to the rigid portion 11132 .

[0121] In this embodiment, after the multiple sheets are stacked, the ends of the multiple sheets close to the rigid part 11132 are heated to melt the ends of the multiple sheets close to the rigid part 11132. After the melted parts of the flexible part 11131 are re-solidified, the ends of the multiple sheets close to the rigid part 11132 are fused into a whole, and the whole is welded to the rigid part 11132 to connect the flexible part 11131 with the rigid part 11132.

[0122] By adopting the above technical solution, the connection strength between the flexible part 11131 and the rigid part 11132 is effectively improved, thereby effectively improving the reliability of the stator 111.

[0123] In some embodiments of the present application, the ends of the multiple sheets away from the rigid portion 11132 are welded into one body and passed through the wire outlet.

[0124] In this embodiment, after the multiple sheets are stacked, the ends of the multiple sheets away from the rigid part 11132 are heated to melt the ends of the multiple sheets away from the rigid part 11132. After the melted parts of the flexible part 11131 are re-solidified, the ends of the multiple sheets away from the rigid part 11132 are fused into a whole, which is passed through the wire outlet and connected to the external connector.

[0125] By adopting the above technical solution, the connection strength between the flexible portion 11131 and the external connecting member is effectively improved, thereby effectively improving the reliability of the stator 111.

[0126] Of course, in other embodiments, the flexible portion 11131 and the rigid portion 11132 may be made of different conductive materials so that the rigidity of the flexible portion 11131 is smaller than that of the rigid portion 11132. For example, the flexible portion 11131 is made of aluminum and the rigid portion 11132 is made of copper.

[0127] In some embodiments of this application, please refer to Figure 8 The flexible portion 11131 includes a connecting section 11133, a bending section 11134 and a lead-out section 11135, the bending section 11134 is connected between one end of the connecting section 11133 and one end of the lead-out section 11135, the other end of the connecting section 11133 is connected to the rigid portion 11132, and the other end of the lead-out section 11135 is passed through the wire outlet.

[0128] The connecting section 11133 is a portion for connecting the rigid portion 11132 , the lead-out section 11135 is a portion for connecting an external connecting member, and the bending section 11134 is a portion for changing the extension direction of the flexible portion 11131 .

[0129] When the flexible portion 11131 includes multiple sheets, the ends of the multiple sheets close to the rigid portion 11132 are welded to form the above-mentioned connecting section 11133, the ends of the multiple sheets away from the rigid portion 11132 are welded to form the above-mentioned lead-out section 11135, and the middle parts of the multiple sheets are stacked to form the above-mentioned bending section 11134.

[0130] By adopting the above technical solution, it is convenient to align the lead-out section 11135 with the wire outlet and extend it outward through the wire outlet, thereby effectively improving the work efficiency of the assembly operation of the lead-out wire 1113.

[0131] In some embodiments of this application, please refer to Figure 8 , the bending section 11134 has an arc-shaped structure.

[0132] By adopting the above technical solution, the strength of the flexible portion 11131 can be reduced, which is conducive to adjusting the bending direction of the flexible portion 11131 to adapt to the position of the outlet. At the same time, the bending stress of the flexible portion 11131 can be effectively reduced, thereby effectively reducing the risk of breakage of the lead wire 1113.

[0133] Second, please also refer to Figure 4 and Figure 7 An embodiment of the present application provides an axial flux motor 11, comprising a stator 111 as described in any of the above embodiments.

[0134] Since the axial flux motor 11 provided in the embodiment of the present application adopts the stator 111 described in any of the above embodiments, the axial size of the axial flux motor 11 is effectively reduced.

[0135] In some embodiments of this application, please refer to Figure 4 The number of the stators 111 is two, and the axial flux motor 11 further includes a rotor 112 , which is disposed between the two stators 111 .

[0136] It can be understood that the rotor 112 is coaxially arranged with the two stators 111 , that is, the central axis of the rotor 112 coincides with the central axis of the two stators 111 .

[0137] By adopting the above technical solution, the volume of the dual-stator axial flux motor 11 is effectively reduced.

[0138] In some embodiments of this application, please refer to Figure 4A wire outlet is provided on the side of the stator housing 1111 facing the rotor 112 .

[0139] In other words, the lead wire 1113 extends outward through the side of the stator case 1111 facing the rotor 112 .

[0140] In some embodiments, the outer diameter of the rotor 112 is smaller than the outer diameter of the two stators 111. Since the rotor 112 is coaxially arranged with the two stators 111, in the radial direction of the axial flux motor 11, the outer peripheral sides of the two stators 111 protrude from the outer peripheral side of the rotor 112, so that the side of one stator shell 1111 facing the rotor 112, the outer peripheral side of the rotor 112, and the side of the other stator shell 1111 facing the rotor 112 enclose a wiring space, and the lead wire 1113 passes through the outlet and enters the wiring space.

[0141] By adopting the above technical solution, the space between the two stators 111 can be effectively utilized without increasing the axial size of the axial flux motor 11, and there is no need to set a wiring structure on the outer peripheral side of the stator shell 1111 of the two stators 111, thereby effectively reducing the radial size of the axial flux motor 11.

[0142] In some embodiments of this application, please refer to Figure 5 and Figure 6 The windings of the two stator bodies 1112 are connected in series or in parallel via lead wires 1113 .

[0143] In some embodiments, see Figure 5 The axial flux motor 11 is a three-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into three positive lead wires and three negative lead wires. One end of the three positive lead wires is connected to the positive end of the three-phase line of the winding one by one, and the other end of the three positive lead wires is electrically connected through a wiring terminal to form an electrical input terminal 1115. The three negative lead wires are connected to the negative end of the three-phase line of the winding one by one, and the other end of the three negative lead wires is electrically connected through a wiring terminal to form an electrical output terminal 1116. The electrical input terminal 1115 of the first stator body 1112 is used as a power supply point of the axial flux motor 11, and the electrical output terminal 1116 of the stator body 1112 is electrically connected to the electrical input terminal 1115 of the second stator body 1112 through a wiring terminal, and the electrical output terminal 1116 of the second stator body 1112 is used as a neutral point of the axial flux motor 11, so that the two stator bodies 1112 are connected in series.

[0144] In other embodiments, the axial flux motor 11 is a two-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into two positive lead wires and two negative lead wires, one end of the two positive lead wires is connected to the positive end of the two-phase line of the winding in a one-to-one correspondence, and the other ends of the two positive lead wires are electrically connected through a wiring terminal to form an electrical input terminal 1115, the two negative lead wires are connected to the negative end of the two-phase line of the winding in a one-to-one correspondence, and the other ends of the two negative lead wires are electrically connected through a wiring terminal to form an electrical output terminal 1116, the electrical input terminal 1115 of the first stator body 1112 is used as a power supply point of the axial flux motor 11, and the electrical output terminal 1116 of the stator body 1112 is electrically connected to the electrical input terminal 1115 of the second stator body 1112 through the wiring terminal, and the electrical output terminal 1116 of the second stator body 1112 is used as the neutral point of the axial flux motor 11, so that the two stator bodies 1112 are connected in series.

[0145] By connecting the windings of the two stator bodies 1112 in series, the two stators 111 can obtain the same current excitation, which is beneficial to reducing the difference in magnetic field strength between the two stators 111, thereby making the magnetic pull of the axial flux motor 11 more balanced, effectively improving the performance of the axial flux motor 11.

[0146] In some other embodiments, see Figure 6 The axial flux motor 11 is a three-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into three positive lead wires and three negative lead wires. One end of the three positive lead wires is connected to the positive end of the three-phase line of the winding one by one, and the other end of the three positive lead wires is electrically connected through a wiring terminal to form an electrical input terminal 1115. The three negative lead wires are connected to the negative end of the three-phase line of the winding one by one, and the other end of the three negative lead wires is electrically connected through a wiring terminal to form an electrical output terminal 1116. The electrical input terminal 1115 of the first stator body 1112 is electrically connected to the electrical input terminal 1115 of the second stator body 1112 to form a power supply point of the axial flux motor 11, and the electrical output terminal 1116 of the first stator body 1112 is electrically connected to the electrical output terminal 1116 of the second stator body 1112 to form a neutral point of the axial flux motor 11, so that the two stator bodies 1112 are connected in parallel.

[0147] In some further embodiments, the axial flux motor 11 is a two-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into two positive lead wires and two negative lead wires, one end of the two positive lead wires are connected one-to-one with the positive ends of the two-phase lines of the winding, and the other ends of the two positive lead wires are electrically connected through wiring terminals to form an electrical input terminal 1115, the two negative lead wires are connected one-to-one with the negative ends of the two-phase lines of the winding, and the other ends of the two negative lead wires are electrically connected through wiring terminals to form an electrical output terminal 1116, the electrical input terminal 1115 of the first stator body 1112 is electrically connected to the electrical input terminal 1115 of the second stator body 1112 to form a power supply point of the axial flux motor 11, and the electrical output terminal 1116 of the first stator body 1112 is electrically connected to the electrical output terminal 1116 of the second stator body 1112 to form a neutral point of the axial flux motor 11, so that the two stator bodies 1112 are connected in parallel.

[0148] By connecting the windings of the two stator bodies 1112 in parallel, the two stators 111 can have exactly the same wire output structure, thereby effectively reducing the manufacturing cost of the axial flux motor 11.

[0149] In some embodiments of this application, please refer to Figure 7 The axial flux motor 11 further includes two rotors 112 , and the stator 111 is disposed between the two rotors 112 .

[0150] It can be understood that the stator 111 and the two rotors 112 are coaxially arranged, that is, the central axis of the stator 111 and the central axes of the two rotors 112 coincide with each other.

[0151] By adopting the above technical solution, the volume of the dual-rotor axial flux motor 11 is effectively reduced.

[0152] In some embodiments of this application, please refer to Figure 7 The stator body 1112 includes a first iron core, a second iron core, a first winding wound on the first iron core, and a second winding wound on the second iron core. The lead wire 1113 is divided into a first lead wire 1113a connected to the first winding and a second lead wire 1113b connected to the second winding. The two axial sides of the stator shell 1111 are provided with outlets. The first lead wire 1113a is passed through the outlet located on one axial side of the stator shell 1111, and the second lead wire 1113b is passed through the outlet located on the other axial side of the stator shell 1111.

[0153] It can be understood that the first core and the first winding together constitute the first magnetic circuit of the axial flux motor 11. When the first winding is energized, the first winding generates a first electromagnetic field, and the first electromagnetic field is magnetically coupled with a rotor 112 to drive the rotor 112 to rotate. The second core and the second winding together constitute the second magnetic circuit of the axial flux motor 11. When the second winding is energized, the second winding generates a second electromagnetic field, and the second electromagnetic field is magnetically coupled with another rotor 112 to drive the rotor 112 to rotate.

[0154] In some embodiments, the outer diameter of the stator 111 is larger than the outer diameters of the two rotors 112. Since the stator 111 and the two rotors 112 are coaxially arranged, in the radial direction of the axial flux motor 11, the outer peripheral side of the stator 111 protrudes from the outer peripheral sides of the two rotors 112, so that a wiring space is formed between one axial side of the stator case 1111 and the outer peripheral side of one rotor 112, and between the other axial side of the stator case 1111 and the outer peripheral side of the other rotor 112, and the first lead wire 1113a and the second lead wire 1113b are passed through the corresponding wire outlets and enter the corresponding wiring space.

[0155] In this embodiment, the above-mentioned seal 1114 is divided into a first seal 1114a and a second seal 1114b. The first seal 1114a is arranged between the first lead wire 1113a and the edge of the corresponding outlet, and the second seal 1114b is arranged between the second lead wire 1113b and the edge of the corresponding outlet.

[0156] By adopting the above technical solution, without increasing the axial size of the axial flux motor 11, the two axial side spaces of the stator 111 can be effectively utilized, and there is no need to set a wiring structure on the outer peripheral side of the stator shell 1111 of the two stators 111, thereby effectively reducing the radial size of the axial flux motor 11.

[0157] In some embodiments of the present application, the first winding and the second winding are connected in series or in parallel via a lead wire 1113 .

[0158] In some embodiments, the axial flux motor 11 is a three-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into three first positive lead wires, three first negative lead wires, three second positive lead wires and three second negative lead wires. One end of the three first positive lead wires is connected to the positive end of the three-phase wire of the first winding in a one-to-one correspondence, and the other end of the three first positive lead wires is electrically connected to form a first electrical input end through a wiring terminal. The three first negative lead wires are connected to the negative end of the three-phase wire of the first winding in a one-to-one correspondence, and the other end of the three first negative lead wires is electrically connected to form a first electrical input end through a wiring terminal. Output end, one end of the three second positive lead wires is connected one-to-one with the positive end of the three-phase line of the second winding, the other end of the three second positive lead wires is electrically connected through the wiring terminal to form a second electrical input end, the three second negative lead wires are connected one-to-one with the negative end of the three-phase line of the second winding, the other end of the three second negative lead wires is electrically connected through the wiring terminal to form a second electrical output end, the first electrical input end is used as the power supply point of the axial flux motor 11, the first electrical output end is electrically connected to the second electrical input end through the wiring terminal, and the second electrical output end is used as the neutral point of the axial flux motor 11, so that the first winding and the second winding are connected in series.

[0159] In some other embodiments, the axial flux motor 11 is a two-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into two first positive lead wires, two first negative lead wires, two second positive lead wires and two second negative lead wires, one end of the two first positive lead wires is connected to the positive end of the two-phase wire of the first winding in a one-to-one correspondence, and the other end of the two first positive lead wires is electrically connected to form a first electrical input end through a wiring terminal, and the two first negative lead wires are connected to the negative end of the two-phase wire of the first winding in a one-to-one correspondence, and the other end of the two first negative lead wires is electrically connected to form a first electrical input end through a wiring terminal. Output end, one end of the two second positive lead wires is connected one-to-one with the positive end of the two-phase line of the second winding, the other end of the two second positive lead wires is electrically connected through the wiring terminal to form a second electrical input end, the two second negative lead wires are connected one-to-one with the negative end of the two-phase line of the second winding, the other end of the two second negative lead wires is electrically connected through the wiring terminal to form a second electrical output end, the first electrical input end is used as the power supply point of the axial flux motor 11, the first electrical output end is electrically connected to the second electrical input end through the wiring terminal, and the second electrical output end is used as the neutral point of the axial flux motor 11, so that the first winding and the second winding are connected in series.

[0160] By connecting the first winding and the second winding in series, the first winding and the second winding can obtain the same current excitation, which is beneficial to reducing the difference in magnetic field strength between the first winding and the second winding, thereby making the magnetic pull of the axial flux motor 11 more balanced, effectively improving the performance of the axial flux motor 11.

[0161] In some other embodiments, the axial flux motor 11 is a three-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into three first positive lead wires, three first negative lead wires, three second positive lead wires and three second negative lead wires. One end of the three first positive lead wires is connected to the positive end of the three-phase wire of the first winding in a one-to-one correspondence, and the other end of the three first positive lead wires is electrically connected to form a first electrical input end through a wiring terminal. The three first negative lead wires are connected to the negative end of the three-phase wire of the first winding in a one-to-one correspondence, and the other end of the three first negative lead wires is electrically connected to form a first electrical input end through a wiring terminal. The electrical output terminal, one end of the three second positive lead wires are connected one-to-one with the positive end of the three-phase line of the second winding, the other ends of the three second positive lead wires are electrically connected through the wiring terminal to form a second electrical input terminal, the three second negative lead wires are connected one-to-one with the negative end of the three-phase line of the second winding, the other ends of the three second negative lead wires are electrically connected through the wiring terminal to form a second electrical output terminal, the first electrical input terminal is electrically connected to the second electrical input terminal to form a power supply point of the axial flux motor 11, and the first electrical output terminal is electrically connected to the second electrical output terminal to form a neutral point of the axial flux motor 11, so that the first winding and the second winding are connected in parallel.

[0162] In some further embodiments, the axial flux motor 11 is a two-phase motor, and the number of lead wires 1113 is multiple, and the multiple lead wires 1113 are divided into two first positive lead wires, two first negative lead wires, two second positive lead wires and two second negative lead wires, one end of the two first positive lead wires is connected to the positive end of the two-phase wire of the first winding in a one-to-one correspondence, and the other end of the two first positive lead wires is electrically connected to form a first electrical input end through a wiring terminal, and the two first negative lead wires are connected to the negative end of the two-phase wire of the first winding in a one-to-one correspondence, and the other end of the two first negative lead wires is electrically connected to form a first electrical input end through a wiring terminal. An electrical output terminal, one end of the two second positive lead wires are connected one-to-one with the positive ends of the two-phase lines of the second winding, the other ends of the two second positive lead wires are electrically connected through a wiring terminal to form a second electrical input terminal, the two second negative lead wires are connected one-to-one with the negative ends of the two-phase lines of the second winding, the other ends of the two second negative lead wires are electrically connected through a wiring terminal to form a second electrical output terminal, the first electrical input terminal is electrically connected to the second electrical input terminal to form a power supply point of the axial flux motor 11, and the first electrical output terminal is electrically connected to the second electrical output terminal to form a neutral point of the axial flux motor 11, so that the first winding and the second winding are connected in parallel.

[0163] By connecting the first winding and the second winding in parallel, the first winding and the second winding can have exactly the same output wire structure, thereby effectively reducing the manufacturing cost of the axial flux motor 11.

[0164] Third, see Figure 3An embodiment of the present application provides an electric drive device 10, comprising the axial flux motor 11 described in any one of the above embodiments.

[0165] Since the electric drive device 10 provided in the embodiment of the present application adopts the axial flux motor 11 described in any of the above embodiments, the volume of the electric drive device 10 is effectively reduced.

[0166] Fourth, please refer to Figure 1 , an embodiment of the present application provides an electric drive system 100, including the above-mentioned electric drive device 10.

[0167] Since the electric drive system 100 provided in the embodiment of the present application adopts the above-mentioned electric drive device 10 , the volume of the electric drive system 100 is effectively reduced.

[0168] Fifth, please refer to Figure 1 , an embodiment of the present application provides an electric device, including the above-mentioned electric drive system 100.

[0169] Since the electric device provided in the embodiment of the present application adopts the above-mentioned electric drive system 100, the volume of the electric device is effectively reduced.

[0170] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A stator, applied to an axial flux motor, characterized in that: The stator comprises: The stator housing has a wire outlet opening on its axial side; A stator body, accommodated in the stator shell; A lead wire, one end of which is connected to the stator body, and the other end of which is passed through the wire outlet.

2. The stator according to claim 1, characterized in that: The stator further includes a sealing member, and the sealing member is arranged between the lead-out wire and an edge of the wire outlet.

3. The stator according to claim 2, characterized in that: The sealing member comprises a connecting portion and a sealing portion. There are multiple lead-out wires. The connecting portion is used to connect the multiple lead-out wires. The sealing portion is arranged between the connecting portion and an edge of the wire outlet.

4. The stator according to claim 3, characterized in that: The connecting portion is injection-molded and connected to the plurality of lead wires.

5. The stator according to claim 2, characterized in that: A clamping groove is provided on the outer peripheral side of the sealing member, and the edge of the wire outlet is clamped in the clamping groove.

6. The stator according to any one of claims 1 to 5, characterized in that: The stator further includes a cooling medium, and the cooling medium is accommodated in the stator shell.

7. The stator according to any one of claims 1 to 5, characterized in that: The lead wire comprises a flexible part and a rigid part, one end of the rigid part is connected to the stator body, the other end of the rigid part is connected to one end of the flexible part, and the other end of the flexible part is passed through the wire outlet.

8. The stator according to claim 7, characterized in that: The flexible portion includes a plurality of sheets, and the plurality of sheets are stacked and connected.

9. The stator according to claim 8, characterized in that: One end of a plurality of the sheets close to the rigid part is fused into one body and welded to the rigid part.

10. The stator according to claim 8, characterized in that: The ends of the plurality of sheets away from the rigid part are welded into one body and passed through the wire outlet.

11. The stator according to claim 7, characterized in that: The flexible portion includes a connecting section, a bending section and a lead-out section, the bending section is connected between one end of the connecting section and one end of the lead-out section, the other end of the connecting section is connected to the rigid portion, and the other end of the lead-out section is passed through the wire outlet.

12. The stator according to claim 11, characterized in that: The bending section is in an arc-shaped structure.

13. An axial flux motor, characterized in that: The axial flux motor comprises a stator as claimed in any one of claims 1-12.

14. The axial flux motor according to claim 13, characterized in that: The number of the stators is two, and the axial flux motor further includes a rotor, which is arranged between the two stators.

15. The axial flux motor according to claim 14, characterized in that: The wire outlet is provided on a side of the stator shell facing the rotor.

16. The axial flux motor according to claim 14 or 15, characterized in that: The stator body includes an iron core and a winding wound around the iron core, and the two windings are connected in series or in parallel through the lead wires.

17. The axial flux motor according to claim 13, characterized in that: The axial flux motor further includes two rotors, and the stator is arranged between the two rotors.

18. The axial flux motor according to claim 17, characterized in that: The stator body includes a first iron core, a second iron core, a first winding wound on the first iron core, and a second winding wound on the second iron core. The lead wire is divided into a first lead wire connected to the first winding and a second lead wire connected to the second winding. The two axial sides of the stator shell are provided with the lead outlets. The first lead wire is passed through the lead outlet located on one axial side of the stator shell, and the second lead wire is passed through the lead outlet located on the other axial side of the stator shell.

19. The axial flux motor according to claim 17 or 18, characterized in that: The stator body includes a first iron core, a second iron core, a first winding wound around the first iron core, and a second winding wound around the second iron core. The first winding and the second winding are connected in series or in parallel via the lead wire.

20. An electric drive device, characterized in that: The electric drive device comprises an axial flux motor as claimed in any one of claims 13-19.

21. An electric drive system, characterized in that: The electric drive system comprises the electric drive device according to claim 20.

22. An electric device, characterized in that: The electric device comprises the electric drive system according to claim 21.

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