Axial motor, power assembly and electric equipment

Abstract

The invention is suitable for the technical field of motors, and provides an axial motor, a power assembly and electric equipment, the electric equipment comprises the power assembly, the power assembly comprises the axial motor, and the axial motor comprises a rotor, a stator and a wiring structure. The stator and the rotor are sequentially distributed in the axial direction. The radial size of the stator is larger than that of the rotor, and the radial outer side of the rotor and the stator define a containing space. The wiring structure is connected to the stator and is at least partially located in the accommodating space. According to the arrangement, at least part of the wiring structure is located in the containing space defined by the radial outer side of the rotor and the stator, the arrangement of the wiring structure on the radial outer side of the stator can be reduced or even omitted, and therefore the radial size of the axial motor can be reduced.

Description

Technical Field

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

[0002] In the related art, axial motors have attracted more and more attention due to their compact structure, high efficiency, high power density, etc. However, in some cases, the radial size of axial motors is still large and it is difficult to meet the high requirements of users. Summary of the invention

[0003] In view of the above problems, the embodiments of the present application provide an axial motor, a power assembly and an electric device, which can improve the technical problem of the large radial size of the axial motor.

[0004] In a first aspect, an embodiment of the present application provides an axial motor, comprising:

[0005] Rotor;

[0006] The stator and the rotor are sequentially distributed along the axial direction; the radial dimension of the stator is larger than the radial dimension of the rotor, and the radial outer side of the rotor and the stator define an accommodation space;

[0007] The wiring structure is connected to the stator and is at least partially located in the accommodating space.

[0008] The axial motor provided in the embodiment of the present application can reduce or even eliminate the arrangement of the wiring structure on the radial outside of the stator by at least part of the wiring structure being located on the radial outside of the rotor and within the accommodating space formed by the stator, thereby reducing the radial size of the axial motor.

[0009] In some embodiments, the axial motor further includes a casing, and the rotor, the stator and the wiring structure are all disposed in the casing.

[0010] By adopting the above technical solution, on the one hand, the rotor, stator and wiring structure are all arranged in the casing, so that the casing can achieve a protective effect on the rotor, stator, wiring structure and other components. On the other hand, the wiring structure is arranged in the internal space of the casing, and does not need to be arranged outside the casing, which can improve the problem of increasing the size of the axial motor due to the wiring structure being arranged outside the casing, and help improve the structural compactness of the axial motor.

[0011] In some embodiments, a groove is provided on one side of the housing radially facing the accommodating space.

[0012] By adopting the above technical solution, on the one hand, the wiring structure or the first sealing structure can be accommodated in the groove without increasing the size of the housing to achieve the arrangement, which helps to improve the utilization rate of the internal space of the axial motor, so as to improve the compactness of the structure, and then reduce the radial size of the axial motor. On the other hand, the low-voltage wiring harness, electrical components, etc. of the stator can be arranged in the accommodation space and the groove, so that the utilization rate of the internal space of the axial motor can be improved, thereby improving the compactness of the structure of the axial motor and reducing the size of the axial motor.

[0013] In some embodiments, the housing is provided with a wiring hole, which is opposite to the wiring structure and is used for allowing the external structure to pass through to be connected to the wiring structure.

[0014] By adopting the above technical solution, the external structure can pass through the wiring hole to be connected to the wiring structure, specifically, the second copper bar of the external structure passes through the wiring hole to be connected to the wiring structure. In this way, the electrical connection between the external structure and the stator can be achieved.

[0015] In some embodiments, the axial motor further includes a first sealing structure, and the first sealing structure is used to seal the wiring hole.

[0016] Such an arrangement can achieve sealing inside and outside the casing, so as to achieve dust-proof and moisture-proof protection for the wiring structure, conductive parts, low-voltage wiring harness, etc. inside the casing.

[0017] In some embodiments, the inner peripheral wall of the wiring hole is provided with a groove, the groove is provided on a side of the housing radially facing the wiring structure, and at least a portion of the first sealing structure is provided in the groove.

[0018] By adopting the above technical solution, at least a portion of the first sealing structure is accommodated in the groove, which can improve the utilization rate of the internal space of the axial motor, thereby improving the structural compactness of the axial motor, which helps to reduce the radial size of the axial motor to achieve a miniaturized design of the axial motor.

[0019] In some embodiments, the first sealing structure includes a first sealing seat disposed on the housing, the first sealing seat is provided with an opening, the opening is opposite to the wiring structure and corresponds to the wiring hole, and is used for allowing the external structure to pass through to connect to the wiring structure.

[0020] By adopting the above technical solution, the first sealing seat can seal the gap between the inner peripheral wall of the wiring hole and the external structure to achieve sealing of the wiring hole.

[0021] In some embodiments, the first sealing structure further includes a first sealing ring, which is disposed in the opening and is used for allowing the external structure to pass through; the first sealing ring is used to press the inner circumferential wall of the opening and the external structure along the axial direction.

[0022] Such arrangement enables the first sealing ring to seal the gap between the external structure and the inner wall of the opening, that is, to seal between the first sealing seat and the external structure, thereby sealing the wiring hole, so as to achieve dust-proof and moisture-proof sealing effect on the wiring structure, stator, rotor and other components inside the casing.

[0023] In some embodiments, the first sealing structure further includes a second sealing ring, which is disposed outside the first sealing seat and presses against the housing and the first sealing seat.

[0024] Such an arrangement realizes the sealing between the housing and the first sealing seat, which helps to realize the sealing of the wiring hole, thereby realizing the dust-proof and moisture-proof sealing effect for the wiring structure, stator, rotor and other components inside the housing.

[0025] In some embodiments, the first sealing structure is used to surround the outer periphery of the external structure and press the external structure and the housing along the axial direction of the axial motor.

[0026] With such arrangement, the first sealing structure can seal the gap between the inner wall of the wiring hole and the external structure, that is, seal the wiring hole, thereby achieving dust-proof and moisture-proof sealing effects on the wiring structure, stator, rotor and other components inside the casing.

[0027] In some embodiments, the axial motor further comprises a casing, the rotor, the stator and the wiring structure are all arranged in the casing, and the wiring structure is arranged in the casing;

[0028] Alternatively, the axial motor further comprises a housing arranged between the stator and the rotor, and the wiring structure is arranged in the housing.

[0029] By adopting the above technical solution, the wiring structure is set on the casing or shell, which can improve the position reliability of the wiring structure on the axial motor and facilitate the connection between the wiring structure and the stator, and between the wiring structure and the external structure.

[0030] In some embodiments, the axial motor further includes a conductive member connected to the stator and the wiring structure.

[0031] By adopting the above technical solution, the stator and the wiring structure can be indirectly connected through the conductive member, which facilitates the connection between the three-phase wires led out of the stator winding and the wiring structure.

[0032] In some embodiments, the wiring structure is provided with a plug-in hole, the conductive member is plugged into the plug-in hole, and a second sealing structure for sealing the plug-in hole is provided between the wiring structure and the conductive member.

[0033] By adopting the above technical solution, sealing can be achieved at the plug-in hole of the wiring structure, which can ensure the use of the inside of the wiring structure to a certain extent, and is conducive to ensuring the reliability of electrical connection between conductive parts and conductive parts, and between conductive parts and external structures.

[0034] In some embodiments, the second sealing structure includes a second sealing seat sleeved on the outer periphery of the conductive member and a third sealing ring sleeved on the outer periphery of the second sealing seat, and the third sealing ring presses against the inner peripheral wall of the plug hole and the second sealing seat.

[0035] With such arrangement, the third sealing ring and the second sealing seat can stably seal the gap between the inner peripheral wall of the plug hole and the conductive member.

[0036] In some embodiments, the axial motor also includes a casing, and the rotor, stator and wiring structure are all arranged in the casing; the axial motor also includes a shell arranged between the stator and the rotor, and a fourth sealing ring is provided on the outer sleeve of the shell, and the fourth sealing ring is radially pressed against the shell and the casing.

[0037] Such arrangement can achieve sealing of the connection position between the casing and the shell, thus achieving sealing isolation between the stator and the accommodation space, thus achieving moisture-proof protection effect for the wiring structure and the conductive parts in the accommodation space.

[0038] In some embodiments, stators are provided on opposite sides of the rotor along the axial direction, and the radial outer side of the rotor and two adjacent stators are enclosed to form a receiving space.

[0039] By adopting the above technical solution, on the one hand, two stators adjacent to each other in the axial direction can be used to drive the rotor between the two stators to rotate, which can improve the output power of the axial motor. On the other hand, at least part of the wiring structure is accommodated in the accommodation space, so that the arrangement of the wiring structure does not increase the axial size of the axial motor, so that the axial motor has a smaller axial size.

[0040] In some embodiments, two adjacent stators are connected to a wiring structure to form a parallel connection, and the wiring structure is used to conduct the stator and the external structure.

[0041] By adopting the above technical solution, the two stators can be connected in parallel through the wiring structure, and the wiring structure can also be connected to the external structure to achieve conduction between the two stators connected in parallel and the external structure.

[0042] In some embodiments, a plurality of wiring structures are provided, and the plurality of wiring structures include a first wiring structure and a second wiring structure; two adjacent stators are connected to the first wiring structure to form a series connection; two adjacent stators are also connected to the second wiring structure, and the second wiring structure is used to connect to an external structure to conduct the stator and the external structure.

[0043] By adopting the above technical solution, two adjacent stators can be connected in series and electrically connected to the external structure.

[0044] In a second aspect, an embodiment of the present application provides a powertrain including an axial motor.

[0045] The powertrain provided in the embodiment of the present application can reduce the radial size of the axial motor by adopting the axial motor involved in the above embodiment. Based on this, the utilization rate of the internal space of the axial motor is improved, which helps to improve the structural compactness of the powertrain and realize the miniaturized design of the powertrain.

[0046] In a third aspect, an embodiment of the present application provides an electric device, including an axial motor or a powertrain.

[0047] The powertrain provided in the embodiment of the present application can reduce the radial size of the axial motor by adopting the axial motor or powertrain involved in the above embodiment. Based on this, the utilization rate of the internal space of the axial motor is improved, which helps to improve the structural compactness of the electric device and realize the miniaturization design of the electric device.

[0048] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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.

[0050] Figure 1 A schematic diagram of a vehicle provided for some embodiments of the present application;

[0051] Figure 2 A schematic diagram of the structure of an axial motor provided in some embodiments of the present application;

[0052] Figure 3 A schematic diagram of the structure of an axial motor provided in some embodiments of the present application;

[0053] Figure 4 A schematic diagram of the structure of an axial motor provided in some embodiments of the present application;

[0054] Figure 5A schematic diagram of the structure of an axial motor provided in some embodiments of the present application;

[0055] Figure 6 An exploded view of an axial motor provided in some embodiments of the present application;

[0056] Figure 7 for Figure 6 A schematic diagram of another perspective of the axial motor shown;

[0057] Figure 8 for Figure 6 The assembly cross-sectional view of the axial motor along AA is shown;

[0058] Fig. 9 for Figure 8 The enlarged view of point B in the middle;

[0059] Fig.10 for Figure 6 A three-dimensional schematic diagram of a first sealing structure of the axial motor shown;

[0060] Fig.11 for Fig.10 A schematic diagram of the first sealing structure from another perspective;

[0061] Fig.12 A partial schematic diagram of an axial motor provided in some embodiments of the present application;

[0062] Fig.13 for Fig.12 Sectional view along CC;

[0063] Fig.14 for Fig.13 The enlarged view of point D in the middle;

[0064] Fig.15 for Fig.12 Sectional view along EE;

[0065] Fig.16 for Fig.15 The enlarged view of F in the middle;

[0066] Fig.17 Partial schematic diagram of an axial motor provided in some other embodiments of the present application;

[0067] Fig.18 for Fig.17 Sectional view along GG;

[0068] Fig.19 for Fig.18 Enlarged view of point H in the middle.

[0069] Among them, the reference numerals in the figure are:

[0070] 1000-powertrain; 100-axial motor; 200-transmission; 300-battery; 400-controller; 4001-second copper bar; 1001-accommodation space; 10-rotor; 20-stator; 30-rotating shaft; 40-wiring structure; 40a-first wiring structure; 40b-second wiring structure; 401-plug hole; 50-casing; 501-groove; 502-wiring hole; 503-first limit groove; 51-first shell; 52-second shell; 60 -shell; 70-first sealing structure; 701-opening; 71-first sealing seat; 711-limiting portion; 72-first sealing ring; 73-second sealing ring; 80-second sealing structure; 801-second limiting groove; 81-second sealing seat; 82-third sealing ring; 90-fourth sealing ring; 110-conductive member; 110a-first conductive member; 110b-second conductive member; 120-connecting member; 121-nut; 122-first copper busbar; Z-axial direction; Y-radial direction. DETAILED DESCRIPTION

[0071] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0072] In the description of the present application, 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.

[0073] 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, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0074] In the description of the present application, "plurality" means more than two, and unless otherwise clearly and specifically defined, "more than two" includes two. Accordingly, "multiple groups" means more than two groups, including two groups.

[0075] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0076] In the description of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, in this application, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0077] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0078] In the related art, axial motors have attracted more and more attention due to their compact structure, high efficiency, high power density, etc. However, in some cases, the radial size of axial motors is still large and it is difficult to meet the high requirements of users.

[0079] As an example, a wiring structure is usually provided on the radial outer side of the stator to realize the electrical connection between the stator and external structures such as a controller. In this way, the radial size of the entire axial motor is increased due to the provision of the wiring structure, which is not conducive to the miniaturization design of electric equipment such as vehicles and ships using the axial motor.

[0080] Based on the above considerations, an embodiment of the present application provides an axial motor, a powertrain and an electric device. By having at least a portion of the wiring structure located on the radial outer side of the rotor and within the accommodating space formed by the stator, the arrangement of the wiring structure on the radial outer side of the stator can be reduced or even omitted, thereby reducing the radial size of the axial motor.

[0081] It should be noted that the motor is also called an electric motor. The motor is generally composed of a rotor and a stator. The motor is a device that converts electrical energy into mechanical energy. Specifically, the motor uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magnetic electrodynamic rotation torque. The fixed part of the motor is called the stator; and the rotating part of the motor is called the rotor.

[0082] Among them, the motor can be divided into radial motor and axial motor. A radial motor is a motor in which the stator and the rotor are arranged radially. For example, the stator is located on the outer periphery of the rotor, that is, the stator is sleeved on the outer periphery of the rotor; or, the rotor is located on the outer periphery of the stator, that is, the rotor is sleeved on the outer periphery of the stator. An axial motor is a motor in which the stator and the rotor are arranged axially.

[0083] The axial motor mentioned in the embodiment of the present application can be applied to a powertrain as a power source; it can also be applied to an electric device as a power source. The powertrain mentioned in the embodiment of the present application can also be applied to an electric device as a power source.

[0084] The electric device may be, but is not limited to, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0085] The electric device may also be a vehicle or a vehicle chassis. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle. Among them, the motor may be integrated with one or more of the power supply, the controller, the gearbox and other devices to form a powertrain.

[0086] For the convenience of explanation, the embodiment of the present application is described by taking the electric device as a vehicle as an example.

[0087] See also Figure 1 , Figure 1 The schematic diagram of the structure of the vehicle provided in some embodiments of the present application. The above-mentioned power assembly 1000 is arranged inside the vehicle, and the power assembly 1000 can be arranged at the bottom, head or tail of the vehicle. The power assembly 1000 can be used to increase the power of the vehicle.

[0088] In some embodiments, the powertrain 1000 may include an axial motor 100, and the axial motor 100 is used as a power source of the powertrain 1000. It can be understood that the powertrain 1000 is not limited to being used in vehicles, but can also be used in other electric devices that require power output.

[0089] In some embodiments, the powertrain 1000 may further include a controller 400 and a battery 300, wherein the controller 400 is used to control the operation of the powertrain 1000. For example, the start, speed change and stop of the powertrain 1000 are controlled, specifically, the start, speed change and stop of the axial motor 100 are controlled. The controller 400 may also be used to control the battery 300 to supply power to the powertrain 1000, specifically, the battery 300 is controlled to supply power to the axial motor 100, such as for the starting, navigation and driving power requirements of the vehicle.

[0090] In some embodiments, the powertrain 1000 may further include a transmission 200, which is connected to the axial motor 100 to achieve torque change of the axial motor 100. The transmission 200 (Transmission), also known as a gearbox, is a mechanism used to change the speed and torque from the engine, and it can change the output shaft and input shaft transmission ratio in a fixed or step-by-step manner.

[0091] In some embodiments, the controller 400 may be integrated with the axial motor 100 to form a powertrain 1000. The battery 300 may also be integrated with the axial motor 100 to form a powertrain 1000. The transmission 200, the controller 400 and the axial motor 100 may also be integrated to form a powertrain 1000. The transmission 200, the controller 400, the battery 300 and the axial motor 100 may also be integrated to form a powertrain 1000. Of course, in some embodiments, the powertrain 1000 may also be integrated with other structures, such as a cooling oil circuit.

[0092] Please also read Figures 2 to 5 , Figures 2 to 5 The schematic diagrams of the structures of the axial motor 100 provided by the embodiments of the present application are shown respectively. The axial motor 100 provided by the embodiment of the present application comprises a rotor 10 and a stator 20, and the rotor 10 and the stator 20 are sequentially distributed along the axial direction Z.

[0093] The axial motor 100 further includes a rotating shaft 30 , and the rotor 10 is fixedly mounted on the rotating shaft 30 .

[0094] The rotating shaft 30 refers to a shaft-shaped structure in the axial motor 100 for outputting power. The rotating shaft 30 is fixedly connected to the rotor 10 so that the rotating shaft 30 can rotate under the drive of the rotor 10 to output power.

[0095] The stator 20 and the rotating shaft 30 can rotate relative to each other, thereby enabling the stator 20 and the rotor 10 to rotate relative to each other. For example, in some embodiments, the stator 20 can be supported on the rotating shaft 30 by a bearing. In some embodiments, the axial motor 100 includes Figure 6In the case 50 shown, the stator 20 can be fixed on the case 50 and supported by the case 50, while the rotor 10 and the rotating shaft 30 are rotatably installed in the case 50 so that the stator 20 and the rotor 10 can rotate relative to each other, so that the stator 20 drives the rotor 10 to rotate.

[0096] The rotor 10 and the stator 20 are sequentially distributed along the axial direction Z, so that the rotor 10 is located on the side of the stator 20 along the axial direction Z, so that the stator 20 drives the rotor 10 to rotate, thereby driving the rotating shaft 30 to rotate.

[0097] When the energized coil on the stator 20 is energized, a magnetic field is generated and acts on the rotor 10 to form a magneto-electrodynamic rotation torque, thereby rotating the rotor 10 and driving the shaft 30 to rotate together, so as to output power through the shaft 30 .

[0098] In some embodiments, see Figure 2 There can be one rotor 10 and one stator 20. The rotor 10 is located on one side of the stator 20 in the axial direction Z. The axial motor 100 has a simple structure and a small size.

[0099] In some embodiments, see Figure 3 The axial motor 100 includes two rotors 10 and a stator 20. The two rotors 10 are located on opposite sides of the stator 20 in the axial direction Z, and the two rotors 10 are fixedly connected to the rotating shaft 30. In this way, the two rotors 10 can be driven to rotate by one stator 20, and the same rotating shaft 30 can be driven to rotate to improve the output power. Moreover, the structure of this axial motor 100 is more compact.

[0100] In some embodiments, see Figure 4 The axial motor 100 includes two stators 20 and a rotor 10. The two stators 20 are located on opposite sides of the rotor 10 in the axial direction Z. In this way, the two stators 20 can drive the same rotor 10 to rotate to improve the output power, and the axial motor 100 has a more compact structure.

[0101] In some embodiments, see Figure 5 The axial motor 100 includes a plurality of rotors 10 and a plurality of stators 20, which are arranged along the axial direction Z. A stator 20 is disposed between two adjacent rotors 10 along the axial direction Z, and a rotor 10 is disposed between two adjacent stators 20 along the axial direction Z. The plurality of rotors 10 are driven to rotate by the plurality of stators 20, thereby driving the rotating shaft 30 to rotate, so as to increase the output power.

[0102] It should be noted that the axial direction Z refers to the axial direction Z of the axial motor 100, that is, the axial direction Z of the rotating shaft 30, that is, the direction of the central axis of the rotating shaft 30. The radial direction Y refers to the radial direction Y of the axial motor 100, that is, the radial direction Y of the rotating shaft 30, that is, the radial direction of the rotating shaft 30. In the description of the axial motor 100 above and below, the axial direction Z and radial direction Y involved have the same meaning as above, and unless otherwise specified, they all refer to the axial direction Z and radial direction Y of the axial motor 100.

[0103] It should also be noted that the side of the stator 20 having the rotor 10 along the axial direction Z is the rotor side of the stator 20. Specifically, when the rotor 10 is provided on one side of the stator 20 along the axial direction Z, the side of the stator 20 having the rotor 10 is the rotor side of the stator 20. When the rotor 10 is provided on both opposite sides of the stator 20 along the axial direction Z, both opposite sides of the stator 20 along the axial direction Z are the rotor sides of the stator 20.

[0104] Please also read Figures 6 to 9 , and combined with other accompanying drawings. Figure 6 Shows Figure 4 An exploded view of the axial motor 100 is shown, Figure 7 Shows Figure 6 Another perspective diagram, Figure 8 Shows Figure 6 The axial motor 100 is shown in a cross-sectional view along AA after assembly. Fig. 9 Shows Figure 8 A partial enlarged view of the Figures 6 to 9 In the axial motor 100 shown, two stators 20 are in a series state. The axial motor 100 provided in the embodiment of the present application includes a rotor 10, a stator 20 and a wiring structure 40. The stator 20 and the rotor 10 are distributed in sequence along the axial direction Z. The radial Y dimension of the stator 20 is greater than the radial Y dimension of the rotor 10, and the radial Y outer side of the rotor 10 and the stator 20 define a receiving space 1001. The wiring structure 40 is connected to the stator 20, and at least part of the wiring structure 40 is located in the receiving space 1001.

[0105] The radial Y dimension of the stator 20 is greater than the radial Y dimension of the rotor 10, so that the stator 20 extends beyond the rotor 10 in the radial direction Y. Based on this, the radial Y outer side of the rotor 10 and the rotor 10 side of the stator 20 enclose a receiving space 1001. That is, the radial Y dimension difference between the stator 20 and the rotor 10 enables the stator 20 and the rotor 10 to enclose the above-mentioned receiving space 1001.

[0106] The wiring structure 40 refers to a component used to connect to the stator 20. The wiring structure 40 is connected to the stator 20, and can be used to realize the electrical connection between the stator 20 and external structures such as the controller 400, and can also be used to realize the series connection or parallel connection between the stator 20 and the stator 20. For example, in some embodiments, the wiring structure 40 is connected to the three-phase line derived from the winding of the stator 20, and is also connected to the external structure to realize the electrical connection between the external structure and the stator 20. In some other embodiments, the stators 20 are provided on opposite sides of the rotor 10 along the axial direction Z, and the three-phase lines derived from the windings of the two stators 20 are connected to the wiring structure 40, so that the series connection or parallel connection of the two stators 20 can be realized. Among them, the number of wiring structures 40 can be one or more. When the wiring structure 40 is set to one, such as Figures 17 to 19 As shown, Fig.17 shows a partial schematic diagram of an axial motor 100 provided in some other embodiments of the present application, Fig.18 for Fig.17 Cross-sectional view along GG, Fig.19 for Fig.18 A partial enlarged view of the Figures 17 to 19 In the axial motor 100 shown, two stators 20 are in parallel connection. The connection structure 40 can be used to realize the conduction between the stator 20 and the external structure, and can also realize the parallel connection between two adjacent stators 20. Figure 6 and Figure 7 As shown, one of the wiring structures 40 can be used to realize the series connection between two adjacent stators 20, such as the first wiring structure 40a mentioned below; the other wiring structure 40 can be used to realize the electrical connection between the stator 20 and the external structure, such as the second wiring structure 40b mentioned below.

[0107] The three-phase wires led out of the winding of the stator 20 can be directly connected to the wiring structure 40. The three-phase wires led out of the winding of the stator 20 can also be connected to the conductive member 110 mentioned below, such as Figures 6 to 9 As shown, the stator 20 and the wiring structure 40 are indirectly connected by connecting the conductive member 110 to the wiring structure 40. The conductive member 110 is a copper busbar.

[0108] The stator 20 may be connected to the wiring structure 40. For example, in some embodiments, the stator 20 and the external structure are both connected to the wiring structure 40, so that the wiring structure 40 achieves a bridge connection between the stator 20 and the external structure. In some other embodiments, two adjacent stators 20 are both connected to the wiring structure 40, so that the wiring structure 40 achieves a bridge connection between the two adjacent stators 20.

[0109] The stator 20 may also be disconnected from the wiring structure 40, in which case the wiring structure 40 may be configured as an insulating support structure. Fig.12 , Figures 15 to 19 As shown, Fig.12 A partial schematic diagram of an axial motor 100 provided in some embodiments of the present application is shown. Fig.15 Shows Fig.12 Cross-sectional view along EE, Fig.16 Shows Fig.15 A partial enlarged view of the Fig.12 , Figure 15 to Figure 16 In the axial motor 100 shown, two stators 20 are in a series connection state. After two adjacent stators 20 are connected to the wiring structure 40, they can be connected in series or in parallel through the connecting member 120. As an example, Figure 8 , Fig. 9 , Fig.16 and Fig.19 As shown, the connector 120 includes a first copper bar 122, a plurality of nuts 121 and a plurality of bolts. The conductive members 110 of the two stators 20 are both inserted into the wiring structure 40, and the first copper bar 122 covers the conductive members 110 of the two stators 20. At least one bolt sequentially passes through the first copper bar 122 and the conductive member 110 of one of the stators 20, and is locked by the nut 121; at least one bolt sequentially passes through the first copper bar 122 and the conductive member 110 of the other stator 20, and is locked by the nut 121. Based on this, the series connection or parallel connection of the two stators 20 is realized. In some other embodiments, as Figure 8 and Fig. 9 As shown, after the stator 20 and the external structure are connected to the wiring structure 40, conduction can be achieved through the connector 120. As an example, Figure 8 and Fig. 9 As shown, the connecting member 120 includes a bolt and a nut 121, a second copper bar 4001 is provided at the output end of the external structure, the conductive member 110 of the stator 20 and the second copper bar 4001 are both connected to the wiring structure 40, and the nut 121 passes through the second copper bar 4001 and the conductive member 110 in sequence and is locked by the nut 121, thereby achieving conduction between the stator 20 and the external structure.

[0110] The wiring structure 40 may be completely located in the accommodation space 1001, or a part of it may be located in the accommodation space 1001 and the other part may be located outside the accommodation space 1001. For the solution in which the wiring structure 40 is only partially located in the accommodation space 1001: when the rotor 10 has a stator 20 on one side along the axial direction Z, a part of the wiring structure 40 along the radial direction Y may be located outside the accommodation space 1001, and a part of the wiring structure 40 along the axial direction Z may also be located outside the accommodation space 1001. When the rotor 10 has a stator 20 on both opposite sides along the axial direction Z, a part of the wiring structure 40 along the radial direction Y is located outside the accommodation space 1001.

[0111] In the axial motor 100 provided in the embodiment of the present application, at least part of the wiring structure 40 is located in the accommodating space 1001 formed by the radial Y outer side of the rotor 10 and the stator 20, so that the wiring structure 40 uses the space of the radial Y outer side of the rotor 10 as much as possible, and the arrangement of the wiring structure 40 on the radial Y outer side of the stator 20 can be reduced or even omitted, thereby reducing the radial Y size of the axial motor 100. Based on this, the utilization rate of the internal space of the axial motor 100 is improved, which helps to improve the structural compactness of the axial motor 100.

[0112] In some embodiments, please refer to Figures 6 to 9 , and in combination with other drawings, the axial motor 100 may further include a housing 50 , in which the rotor 10 , the stator 20 and the wiring structure 40 are all disposed.

[0113] The housing 50 is the outer shell structure of the axial motor 100 .

[0114] By adopting the above technical solution, on the one hand, the rotor 10, the stator 20 and the wiring structure 40 are all arranged in the housing 50, so that the housing 50 can achieve a protective effect on the rotor 10, the stator 20, the wiring structure 40 and other components. On the other hand, the wiring structure 40 is arranged in the internal space of the housing 50, and does not need to be arranged outside the housing 50, which can improve the problem of the wiring structure 40 being arranged outside the housing 50 so as to increase the size of the axial motor 100, and help improve the structural compactness of the axial motor 100.

[0115] In some embodiments, please refer to Figure 8 and Fig. 9 , and in combination with other drawings, a groove 501 is provided on one side of the housing 50 along the radial direction Y toward the accommodating space 1001 .

[0116] It can be understood that the inner wall of the housing 50 is provided with a groove 501 , and the groove 501 is arranged along the radial direction Y of the axial motor 100 toward the accommodating space 1001 .

[0117] The groove 501 may be one, and the groove 501 is an annular groove arranged around the outer circumference of the rotor 10. The number of the grooves 501 may also be multiple, and the multiple grooves 501 may be arranged in sequence around the outer circumference of the rotor 10.

[0118] By adopting the above technical solution, on the one hand, the wiring structure 40 or the first sealing structure 70 mentioned below can be accommodated in the groove 501, and the size of the housing 50 does not need to be increased to achieve the arrangement, which helps to improve the utilization rate of the internal space of the axial motor 100, so as to improve the compactness of the structure, and then reduce the radial Y dimension of the axial motor 100. On the other hand, the low-voltage wiring harness, electrical components, etc. of the stator 20 can be arranged in the accommodation space 1001 and the groove 501, so that the utilization rate of the internal space of the axial motor 100 can be improved, thereby improving the compactness of the structure of the axial motor 100 and reducing the size of the axial motor 100.

[0119] In some embodiments, please refer to Figure 8 and Fig. 9 , and in combination with other drawings, the housing 50 is provided with a wiring hole 502 , which is opposite to the wiring structure 40 and is used for allowing an external structure to pass through to be connected to the wiring structure 40 .

[0120] The wiring hole 502 is arranged to penetrate the housing 50 along the radial direction Y, so that one end of the wiring hole 502 is opposite to the wiring structure 40 along the radial direction Y, and the other end of the wiring hole 502 is connected to the outside.

[0121] When there is one wiring structure 40, the wiring hole 502 is opposite to the wiring structure 40. When there are multiple wiring structures 40, the wiring hole 502 is opposite to the wiring structure 40 that needs to be connected to the external structure. Figure 6 , Figure 7 , Fig.12 , Fig.13 and Fig.15 As shown, Fig.13 Shows Fig.12 Cross-sectional view along CC. There are two wiring structures 40, which are a first wiring structure 40a and a second wiring structure 40b. The wiring structure 40 that needs to be connected to an external structure is the second wiring structure 40b, and the wiring hole 502 is opposite to the second wiring structure 40b.

[0122] By adopting the above technical solution, the external structure can pass through the wiring hole 502 to be connected to the wiring structure 40. Specifically, the second copper bar 4001 of the external structure passes through the wiring hole 502 to be connected to the wiring structure 40. In this way, the electrical connection between the external structure and the stator 20 can be achieved.

[0123] In some embodiments, please refer to Figures 6 to 9 , and in combination with other drawings, the axial motor 100 may further include a first sealing structure 70 , and the first sealing structure 70 is used to seal the wiring hole 502 .

[0124] The first sealing structure 70 refers to a component having sealing functions such as dustproof and moistureproof. The first sealing structure 70 is used to seal the wiring hole 502 , specifically to seal the gap between the external structure and the inner peripheral wall of the wiring hole 502 .

[0125] With such an arrangement, the inside and outside of the housing 50 can be sealed, so as to provide dust-proof and moisture-proof protection for the wiring structure 40 , the conductive member 110 , the low-voltage wiring harness, etc. inside the housing 50 .

[0126] In some embodiments, please refer to Figures 6 to 9 , and in combination with other drawings, the inner wall of the wiring hole 502 is provided with a groove 501, the groove 501 is provided on the side of the housing 50 along the radial direction Y toward the wiring structure 40, and at least a part of the first sealing structure 70 is provided in the groove 501.

[0127] It can be understood that the groove 501 involved in this embodiment has the same structure as the groove 501 involved in the above embodiment.

[0128] It can also be understood that when the number of the grooves 501 is one, the groove 501 is opposite to the wiring structure 40 to be connected to the external structure along the radial direction Y, and the groove 501 is provided on the inner circumferential wall of the wiring hole 502. When the number of the grooves 501 is multiple, one of the grooves 501 is provided on the inner circumferential wall of the wiring hole 502, and the groove 501 is opposite to the wiring structure 40 to be connected to the external structure along the radial direction Y.

[0129] Based on this, the external structure can pass through the wiring hole 502 to connect to the wiring structure 40. At least part of the first sealing structure 70 is disposed in the groove 501 to seal the gap between the inner peripheral wall of the wiring hole 502 and the external structure, thereby achieving sealing inside and outside the housing 50.

[0130] The first sealing structure 70 may be completely located in the groove 501. A portion of the first sealing structure 70 may be located in the groove 501, and another portion may be located outside the groove 501. The portion of the first sealing structure 70 located outside the groove 501 may extend outside the groove 501 along the radial direction Y toward the wiring structure 40, or may extend along the axial direction Z to the wiring hole 502.

[0131] By adopting the above technical solution, at least a portion of the first sealing structure 70 is accommodated in the groove 501, thereby improving the utilization rate of the internal space of the axial motor 100, thereby improving the structural compactness of the axial motor 100, and thus helping to reduce the radial Y dimension of the axial motor 100, so as to achieve a miniaturized design of the axial motor 100.

[0132] In some embodiments, please refer to Figures 6 to 11 , and in combination with other drawings, Fig.101 shows a three-dimensional schematic diagram of a first sealing structure 70 of an axial motor 100 provided in some embodiments of the present application, Fig.11 for Fig.10 The first sealing structure 70 may include a first sealing seat 71, which is disposed on the housing 50 and has an opening 701. The opening 701 is opposite to the wiring structure 40 and corresponds to the wiring hole 502, and is used for an external structure to pass through and connect to the wiring structure 40.

[0133] The opening 701 penetrates the first sealing seat 71 along the radial direction Y. In addition, the opening 701 is opposite to the wiring structure 40 along the radial direction Y, and is arranged corresponding to the wiring hole 502 along the radial direction Y. In this way, the external structure can pass through the opening 701 to be connected to the wiring structure 40. The opening 701 corresponds to the wiring hole 502, which means that at least part of the wiring hole 502 overlaps with the opening 701.

[0134] By adopting the above technical solution, the first sealing seat 71 can seal the gap between the inner peripheral wall of the wiring hole 502 and the external structure to achieve sealing of the wiring hole 502 .

[0135] At least a portion of the first sealing seat 71 is disposed in the groove 501 .

[0136] In some embodiments, please refer to Figures 8 to 11 , and in combination with other drawings, the first sealing structure 70 also includes a first sealing ring 72, which is arranged in the opening 701 and is used for the external structure to pass through. The first sealing ring 72 is used to press the inner peripheral wall of the opening 701 and the external structure along the axial direction Z.

[0137] The first sealing ring 72 can be a component with sealing performance such as a rubber ring or a silicone ring.

[0138] The first sealing ring 72 is axially arranged to penetrate along the radial direction Y of the motor 100 , so that when the first sealing ring 72 is located in the opening 701 , the external structure can pass through the first sealing ring 72 when passing through the opening 701 .

[0139] In the case where the external structure is passed through the first sealing ring 72, the first sealing ring 72 is sleeved outside the external structure, and the inner circumferential wall of the first sealing ring 72 is pressed against the outer circumferential wall of the external structure along the axial direction Z of the axial motor 100, and the outer circumferential wall of the first sealing ring 72 is pressed against the inner circumferential wall of the opening 701 along the axial direction Z of the axial motor 100. In this way, the first sealing ring 72 is pressed against the inner circumferential wall of the opening 701 and the external structure along the axial direction Z of the axial motor 100.

[0140] Such arrangement enables the first sealing ring 72 to seal the gap between the external structure and the inner wall of the opening 701, that is, to seal between the first sealing seat 71 and the external structure, thereby sealing the wiring hole 502, so as to achieve dust-proof and moisture-proof sealing effects on the wiring structure 40, stator 20, rotor 10 and other components inside the housing 50.

[0141] In some embodiments, please refer to Figures 8 to 11 , and in combination with other drawings, the first sealing structure 70 also includes a second sealing ring 73, which is arranged around the outer periphery of the first sealing seat 71 and presses against the housing 50 and the first sealing seat 71 along the axial direction Z.

[0142] The second sealing ring 73 can be a component with sealing performance such as a rubber ring or a silicone ring.

[0143] The second sealing ring 73 is disposed through the radial direction Y of the axial motor 100, so that the second sealing ring 73 can be disposed around the outer periphery of the first sealing seat 71 in the radial direction Y of the axial motor 100. In addition, the inner peripheral wall of the second sealing ring 73 is pressed against the outer peripheral wall of the first sealing seat 71 in the axial direction Z of the axial motor 100, and the outer peripheral wall of the second sealing ring 73 is pressed against the housing 50 in the axial direction Z of the axial motor 100.

[0144] Such an arrangement realizes sealing between the housing 50 and the first sealing seat 71, which helps to realize sealing of the wiring hole 502, thereby achieving dust-proof and moisture-proof sealing effects on components such as the wiring structure 40, the stator 20, and the rotor 10 inside the housing 50.

[0145] In some embodiments, please refer to Figure 8 and Fig. 9 , and in combination with other drawings, the housing 50 is provided with a first limiting groove 503. The first limiting groove 503 is provided on the inner circumferential wall of the wiring hole 502 along the axial direction Z of the motor 100; or, the first limiting groove 503 is provided on the inner circumferential wall of the groove 501 along the axial direction Z of the motor 100; or, the first limiting groove 503 is provided on the inner circumferential wall of the wiring hole 502 and the groove 501 along the axial direction Z of the motor 100.

[0146] The first wiring base has a limiting portion 711 , and the limiting portion 711 is inserted into the first limiting groove 503 to achieve limiting of the first wiring base and the housing 50 in the radial direction Y of the axial motor 100 .

[0147] In some embodiments, the first sealing seat 71 can be a component made of rubber, silicone, etc. with sealing performance. Of course, the first sealing seat 71 can also be a plastic structure. The setting of the plastic structure allows the first sealing seat 71 to have a higher connection reliability with the housing 50, so as to maintain the position of the first sealing ring 72 and the second sealing ring 73 in the housing 50, so that the first sealing ring 72 and the second sealing ring 73 can better exert their sealing performance to achieve sealing of the wiring hole 502.

[0148] In some embodiments, the first sealing structure 70 is used to surround the external structure and press the external structure and the housing 50 along the axial direction Z.

[0149] It can be understood that the first sealing structure 70 can be a rubber ring, a silicone ring or other components.

[0150] The first sealing structure 70 is arranged around the outer periphery of the external structure. In addition, the inner peripheral wall of the first sealing structure 70 is pressed against the outer peripheral wall of the external structure along the axial direction Z of the motor 100, and the outer peripheral wall of the first sealing structure 70 is pressed against the housing 50 along the axial direction Z of the motor 100. In this way, the first sealing structure 70 can seal the gap between the inner peripheral wall of the wiring hole 502 and the external structure, that is, seal the wiring hole 502, thereby achieving dust-proof and moisture-proof sealing effects on the wiring structure 40, stator 20, rotor 10 and other components inside the housing 50.

[0151] In some embodiments, the axial motor 100 further includes a housing 50, the rotor 10, the stator 20 and the wiring structure 40 are all disposed in the housing 50, and the wiring structure 40 is disposed in the housing 50. Alternatively, please refer to Figure 6 , Figure 7 and Fig.12 The axial motor 100 further includes a housing 60 disposed between the stator 20 and the rotor 10 , and the wiring structure 40 is disposed in the housing 60 .

[0152] The housing 60 is disposed between the rotor 10 and the stator 20 along the axial direction Z of the axial motor 100 , so as to achieve axial Z isolation between the rotor 10 and the stator 20 .

[0153] When the stators 20 are disposed on opposite sides of the rotor 10 along the axial direction Z, a housing 60 may be disposed between the rotor 10 and each stator 20. Furthermore, when there is one wiring structure 40, the wiring structure 40 is disposed in one of the housings 60. When there are multiple wiring structures 40, the multiple wiring structures 40 may be disposed in the same housing 60 at intervals, or may be disposed in two housings 60.

[0154] By adopting the above technical solution, the wiring structure 40 is set on the casing 50 or the shell 60, which can improve the position reliability of the wiring structure 40 on the axial motor 100, and facilitate the connection between the wiring structure 40 and the stator 20, and between the wiring structure 40 and the external structure.

[0155] When the wiring structure 40 is disposed in the housing 50, the wiring structure 40 can be disposed in the housing 50 by integral molding, welding, bonding, etc. When the wiring structure 40 is disposed in the housing 60, the wiring structure 40 can be disposed in the housing 60 by integral molding, welding, bonding, etc.

[0156] When a housing 60 is provided between the stator 20 and the rotor 10 , and the stator 20 is connected with a conductive member 110 , the conductive member 110 may be passed through the housing 60 to be connected to the wiring structure 40 at least partially located in the accommodating space 1001 .

[0157] In some embodiments, please refer to Figures 6 to 9 , and in combination with other drawings, the axial motor 100 can include a casing 50 and a shell 60 at the same time, and the shell 60 is disposed in the casing 50.

[0158] Specifically, the housing 50 may include a first housing 51 and a second housing 52, and the stator 20, the rotor 10, the housing 60, the wiring structure 40, etc. are all disposed in a space enclosed by the first housing 51 and the second housing 52. As an example, the stators 20 are disposed on opposite sides of the rotor 10 along the axial direction Z, and a housing 60 is provided between the rotor 10 and each stator 20. Based on this, one of the stators 20 is disposed in a space enclosed by one of the housings 60 and the first housing 51, and the other stator 20 is disposed in a space enclosed by the other housing 60 and the second housing 52.

[0159] The wiring hole 502 and the groove 501 mentioned above can be provided in the first shell 51 , or in the second shell 52 , or even at the connection position between the first shell 51 and the second shell 52 .

[0160] In some embodiments, please refer to Figures 6 to 9 , and in combination with other drawings, the axial motor 100 may further include a conductive member 110 , which is connected to the stator 20 and the wiring structure 40 .

[0161] The conductive member 110 may be a copper busbar or other conductive components.

[0162] The conductive member 110 is connected to the stator 20. Specifically, the three-phase wires led out of the winding of the stator 20 are connected to the conductive member 110 and are in conduction with the conductive member 110. When there are multiple stators 20, each stator 20 has a conductive member 110.

[0163] The conductive member 110 is connected to the wiring structure 40, and the conductive member 110 can be in conduction with the wiring structure 40. In this way, the wiring structure 40 can achieve bridging of the conductive members 110 of the two stators 20, and can also achieve bridging between the conductive members 110 and the external structure. The conductive member 110 is connected to the wiring structure 40, and the conductive member 110 can be out of conduction with the wiring structure 40. In this way, the conductive members 110 of the two stators 20 can be in conduction at the wiring structure 40 through the connector 120, and the conductive member 110 and the external structure can also be in conduction at the wiring structure 40 through the connector 120.

[0164] By adopting the above technical solution, the stator 20 and the wiring structure 40 can be indirectly connected through the conductive member 110 , thereby facilitating the connection between the three-phase wires led out of the winding of the stator 20 and the wiring structure 40 .

[0165] In some embodiments, please refer to Figure 8 , Fig. 9 , Figure 12 to Figure 14 , and in combination with other drawings, Fig.14 for Fig.12 The wiring structure 40 is provided with an insertion hole 401 , the conductive member 110 is inserted into the insertion hole 401 , and a second sealing structure 80 for sealing the insertion hole 401 is provided between the wiring structure 40 and the conductive member 110 .

[0166] The conductive member 110 is inserted into the insertion hole 401 to achieve connection between the conductive member 110 and the wiring structure 40 .

[0167] The second sealing structure 80 refers to a component with sealing performance and is used to seal the gap between the inner peripheral wall of the plug hole 401 and the conductive member 110 to achieve sealing of the plug hole 401 .

[0168] By adopting the above technical solution, sealing can be achieved at the plug hole 401 of the wiring structure 40, which can ensure the use of the inside of the wiring structure 40 to a certain extent, and is conducive to ensuring the reliability of the electrical connection between the conductive parts 110 and the conductive parts 110, and between the conductive parts 110 and the external structure.

[0169] In some embodiments, please refer to Figure 8 , Fig. 9 and Fig.14 , and in combination with other drawings, the second sealing structure 80 includes a second sealing seat 81 and a third sealing ring 82, the second sealing seat 81 is sleeved on the outer periphery of the conductive member 110, the third sealing ring 82 is sleeved on the outer periphery of the second sealing seat 81, and the third sealing ring 82 is pressed against the inner wall of the plug hole 401 and the second sealing seat 81.

[0170] The second sealing seat 81 is a component used to connect the third sealing ring 82 and the conductive member 110. The second sealing seat 81 is sleeved on the outer periphery of the conductive member 110, and the third sealing ring 82 is sleeved on the outer periphery of the second sealing seat 81. In this way, the position stability and reliability of the third sealing ring 82 on the outer periphery of the conductive member 110 can be improved, which is conducive to the sealing of the plug hole 401 by the third sealing ring 82.

[0171] The third sealing ring 82 can be a component with sealing performance such as a rubber ring, a silicone ring, etc.

[0172] The third sealing ring 82 is sleeved on the outer circumference of the second sealing seat 81 , and the inner circumferential wall of the third sealing ring 82 presses against the second sealing seat 81 , and the outer circumferential wall of the third sealing ring 82 presses against the inner circumferential wall of the plug hole 401 .

[0173] With such arrangement, the third sealing ring 82 and the second sealing seat 81 can stably seal the gap between the inner peripheral wall of the plug hole 401 and the conductive member 110 .

[0174] In some embodiments, please refer to Figure 8 , Fig. 9 and Fig.14 , and in combination with other drawings, the plug hole 401 is opened in the wiring structure 40 along the axial direction Z of the axial motor 100, and the conductive member 110 is plugged into the plug hole 401 along the axial direction Z of the axial motor 100. In this way, in the process of arranging the stator 20 and the rotor 10, it is convenient to plug the conductive member 110 into the plug hole 401, thereby facilitating the arrangement of the axial motor 100.

[0175] Based on this, the second sealing seat 81 is sleeved on the outer periphery of the conductive member 110 around the axial direction Z of the axial motor 100, and the third sealing ring 82 is sleeved on the outer periphery of the second sealing seat 81 around the axial direction Z of the axial motor 100. In addition, the outer peripheral wall of the third sealing ring 82 is pressed against the inner peripheral wall of the plug hole 401 along the radial direction Y of the axial motor 100, and the inner peripheral wall of the third sealing ring 82 is pressed against the outer peripheral wall of the third sealing seat along the radial direction Y of the axial motor 100.

[0176] In some embodiments, to improve the fixing reliability of the second sealing seat 81 to the conductive member 110 and the third sealing ring 82 respectively, the second sealing seat 81 can be configured as a plastic part, and the second sealing seat 81 is fixed to the outer periphery of the conductive member 110 by injection molding.

[0177] In some embodiments, the outer peripheral wall of the second sealing seat 81 is provided with a second limiting groove 801, and the third sealing ring 82 is arranged in the second limiting groove 801. In this way, the reliability of the third sealing ring 82 on the second sealing seat 81 can be improved.

[0178] The third sealing ring 82 can be limited in the second limiting groove 801 along the axial direction Z of the axial motor 100 , so that the limiting of the third sealing ring 82 , the conductive member 110 , and the plug hole 401 in the axial direction Z can be improved.

[0179] In some embodiments, the second sealing structure 80 may not be provided with the second sealing seat 81, but the third sealing ring 82 is sleeved on the outer periphery of the conductive member 110. In addition, the inner peripheral wall of the third sealing ring 82 directly presses against the conductive member 110, and the outer peripheral wall of the third sealing ring 82 presses against the inner peripheral wall of the plug hole 401. In this way, the plug hole 401 can be sealed.

[0180] In some embodiments, please refer to Figure 8 , Fig. 9 and Fig.14 In combination with other drawings, the axial motor 100 also includes a housing 60 disposed between the stator 20 and the rotor 10, and a fourth sealing ring 90 is disposed on the outer sleeve of the housing 60, and the fourth sealing ring 90 presses against the housing 60 and the casing 50 along the radial direction Y.

[0181] The fourth sealing ring 90 can be a component with sealing performance such as a rubber ring, a silicone ring, etc.

[0182] The fourth sealing ring 90 is sleeved on the outer periphery of the shell 60 around the axial direction Z of the axial motor 100, and the inner circumferential wall of the fourth sealing ring 90 presses against the shell 60 along the radial direction Y of the axial motor 100, and the outer circumferential wall of the fourth sealing ring 90 presses against the housing 50 along the radial direction Y of the axial motor 100.

[0183] This arrangement can achieve sealing of the connection position between the housing 50 and the shell 60. In this way, the stator 20 and the accommodating space 1001 can be sealed and isolated, so that the wiring structure 40 and the conductive member 110 in the accommodating space 1001 can be protected from moisture.

[0184] In some embodiments, please refer to Figures 6 to 8 , and in combination with other drawings, the stators 20 are provided on opposite sides of the rotor 10 along the axial direction Z, and the radial outer side Y of the rotor 10 is enclosed by two adjacent stators 20 to form the above-mentioned accommodation space 1001.

[0185] By adopting the above technical solution, on the one hand, two stators 20 adjacent in the axial direction Z can be used to drive the rotor 10 between the two stators 20 to rotate, which can improve the output power of the axial motor 100. On the other hand, at least part of the wiring structure 40 is accommodated in the accommodation space 1001, so that the arrangement of the wiring structure 40 does not increase the axial Z dimension of the axial motor 100, so that the axial motor 100 has a smaller axial Z dimension.

[0186] It is understandable that both stators 20 may be provided with a conductive member 110 , and each stator 20 may be connected to the wiring structure 40 via the conductive member 110 .

[0187] It can be understood that, in some embodiments, the axial motor 100 can be configured such that the stator 20 is only disposed on one side of the axial direction Z of the rotor 10 .

[0188] In some embodiments, please refer to Figure 8 , Fig. 9 , Fig.12 , Fig.13 , Fig.15 and Fig.16 , and in combination with other drawings, a plurality of wiring structures 40 are provided, and the plurality of wiring structures 40 include a first wiring structure 40a and a second wiring structure 40b. Two adjacent stators 20 are connected to the first wiring structure 40a to form a series connection. Two adjacent stators 20 are also connected to the second wiring structure 40b, and the second wiring structure 40b is used to connect to an external structure to conduct the stator 20 and the external structure.

[0189] The plurality of wiring structures 40 are divided into at least one first wiring structure 40a and at least one second wiring structure 40b. Fig.13 As shown, the first wiring structure 40a and the second wiring structure 40b are each one. Fig.16 As shown, the first connection structure 40a is used to realize the series connection of two stators 20, such as Fig. 9 and Fig.12 As shown, the second connection structure 40 b is used to connect the stator 20 and the external structure.

[0190] Each stator 20 is provided with a plurality of conductive members 110, and the plurality of conductive members 110 of each stator 20 are divided into at least one first conductive member 110a and at least one second conductive member 110b. Fig.12 As shown, the number of the first conductive member 110a and the number of the second conductive member 110b are both one.

[0191] like Fig.12 , Fig.15 and Fig.16 As shown, the first conductive members 110a of the two stators 20 are connected to the first wiring structure 40a to realize the series connection of the two stators 20. In some possible designs, the first conductive members 110a of the two stators 20 can be respectively connected to the first wiring structure 40a, so that the first wiring structure 40a realizes the bridge connection of the two first conductive members 110a, thereby realizing the series connection of the two stators 20. In some possible designs, the first conductive members 110a of the two stators 20 can also be disconnected from the first wiring structure 40a. As an example, Fig.15 and Fig.16As shown, the first copper bar 122 covers the first conductive members 110a of the two stators 20 to achieve conduction between the two first conductive members 110a, thereby achieving the series connection of the two stators 20. The first copper bar 122 can be fixed to the conductive members 110 of the two stators 20 respectively by bolts and nuts 121 or other methods to maintain the series connection of the two stators 20.

[0192] like Figure 8 , Fig. 9 , Fig.12 and Fig.13 As shown, the second conductive members 110b of the two stators 20 are both connected to the second wiring structure 40b. In some possible designs, the second wiring structure 40b can be electrically connected to one of the second conductive members 110b, and the second wiring structure 40b can also be electrically connected to an external structure, so that the second wiring structure 40b can bridge the second conductive member 110b and the external structure, so as to achieve electrical connection between the two stators 20 connected in series and the external structure.

[0193] In some possible designs, the second wiring structure 40b may not be connected to the second conductive member 110b and the external structure, but the second copper busbar 4001 of the external structure and one of the second conductive members 110b are in contact and connected at the second wiring structure 40b. In addition, the second copper busbar 4001 and the second conductive member 110b may also be fixed by bolts and nuts 121 or other methods.

[0194] By adopting the above technical solution, two adjacent stators 20 can be connected in series and electrically connected to the external structure.

[0195] In some embodiments, please refer to Figures 17 to 19 , and in combination with other figures, two adjacent stators 20 are connected to the wiring structure 40 to form a parallel connection. The wiring structure 40 is used to conduct the stator 20 and the external structure.

[0196] It can be understood that the number of the wiring structure 40 is one. Each of the two stators 20 can be provided with a conductive member 110, and the conductive members 110 of the two stators 20 are connected to the wiring structure 40 so that the two stators 20 are connected in parallel. Among them, the two conductive members 110 are both connected to the wiring structure 40 to achieve the bridging of the two conductive members 110, thereby achieving the parallel connection of the two stators 20. The two conductive members 110 may not be connected to the wiring structure 40, but the first copper bar 122 of the connector 120 covers the conductive members 110 of the two stators 20 to achieve the conduction of the two conductive members 110, thereby achieving the parallel connection of the two stators 20. Among them, as shown in the figure, the first copper bar 122 can be respectively fixed to the conductive members 110 of the two stators 20 by bolts and nuts 121 or other methods to maintain the parallel connection of the two stators 20.

[0197] Furthermore, the external structure can be connected to the wiring structure 40 and be in conduction with the wiring structure 40 to achieve electrical connection between the external structure and the conductive member 110. The external structure can also be connected to the wiring structure 40 and connected to the conductive member 110 through the connector 120 to be in conduction with the conductive member 110.

[0198] By adopting the above technical solution, the two stators 20 can be connected in parallel through the wiring structure 40, and the wiring structure 40 can also be connected to the external structure to achieve conduction between the two stators 20 connected in parallel and the external structure.

[0199] Based on the above ideas, please refer to Figure 1 , and in combination with other drawings, the embodiment of the present application further provides a power assembly 1000, and the power assembly 1000 includes an axial motor 100. Among them, the axial motor 100 in this embodiment is the same as the axial motor 100 in the previous embodiment. For details, please refer to the relevant description of the axial motor 100 in the previous embodiment, which will not be repeated here.

[0200] The power assembly 1000 provided in the embodiment of the present application, by adopting the axial motor 100 involved in the above embodiment, can reduce the radial Y dimension of the axial motor 100. Based on this, the utilization rate of the internal space of the axial motor 100 is improved, which helps to improve the structural compactness of the power assembly 1000, so as to realize the miniaturized design of the power assembly 1000.

[0201] Based on the above ideas, please refer to Figure 1 , and in combination with other drawings, the embodiment of the present application further provides an electric device, the electric device includes an axial motor 100 or a power assembly 1000. Among them, the axial motor 100 and the power assembly 1000 in this embodiment are the same as the axial motor 100 and the power assembly 1000 in the previous embodiment. For details, please refer to the relevant description of the axial motor 100 and the power assembly 1000 in the previous embodiment, which will not be repeated here.

[0202] The power assembly 1000 provided in the embodiment of the present application can reduce the radial Y dimension of the axial motor 100 due to the use of the axial motor 100 or the power assembly 1000 involved in the above embodiment. Based on this, the utilization rate of the internal space of the axial motor 100 is improved, which helps to improve the structural compactness of the electric device, so as to realize the miniaturized design of the electric device.

[0203] As one of the embodiments of this application, Figures 6 to 9As shown, the axial motor 100 includes a rotor 10, a stator 20, a conductive member 110 and a wiring structure 40. Stators 20 are provided on both sides of the axial direction Z of the rotor 10, and each stator 20 is provided with a conductive member 110. The radial Y dimension of the rotor 10 is smaller than the radial Y dimension of the stator 20. The radial Y outer side of the rotor 10 and the rotor 10 side of the two stators 20 enclose a receiving space 1001, and at least part of the wiring structure 40 is provided in the receiving space 1001. The conductive members 110 of the two stators 20 are connected to the wiring structure 40.

[0204] like Figures 17 to 19 As shown, there is one wiring structure 40. The conductive members 110 of the two stators 20 are connected to the wiring structure 40, so that the two stators 20 are connected in parallel. In addition, the wiring structure 40 is also used to be electrically connected to an external structure.

[0205] like Figures 12 to 16 As shown, there are two wiring structures 40, and the two wiring structures 40 are respectively a first wiring structure 40a and a second wiring structure 40b. Each stator 20 is provided with two conductive members 110, and the two conductive members 110 are respectively a first conductive member 110a and a second conductive member 110b. The first conductive members 110a of the two stators 20 are connected to the first wiring structure 40a, so that the two stators 20 are connected in series. The second conductive members 110b of the two stators 20 are connected to the second wiring structure 40b, and the second wiring structure 40b is used to connect to the external structure to realize the electrical connection between the external structure and the stator 20.

[0206] The above are only preferred embodiments of the present application and are 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. An axial motor, characterized in that: include: Rotor; The stator is distributed in sequence with the rotor along the axial direction; the radial dimension of the stator is larger than the radial dimension of the rotor, and the radial outer side of the rotor and the stator define an accommodation space; The wiring structure is connected to the stator and is at least partially located in the accommodating space.

2. The axial motor according to claim 1, characterized in that: The axial motor further comprises a casing, and the rotor, the stator and the wiring structure are all arranged in the casing.

3. The axial motor according to claim 2, characterized in that: A groove is provided on one side of the housing radially facing the accommodating space.

4. The axial motor according to claim 2 or 3, characterized in that: The housing is provided with a wiring hole, which is opposite to the wiring structure and is used for an external structure to pass through so as to be connected to the wiring structure.

5. The axial motor according to claim 4, characterized in that: The axial motor further comprises a first sealing structure, and the first sealing structure is used for sealing the wiring hole.

6. The axial motor according to claim 5, characterized in that: The inner peripheral wall of the wiring hole is provided with a groove, the groove is arranged on a side of the housing radially facing the wiring structure, and at least a part of the first sealing structure is arranged in the groove.

7. The axial motor according to claim 5 or 6, characterized in that: The first sealing structure comprises a first sealing seat arranged on the housing, wherein the first sealing seat is provided with an opening, the opening is opposite to the wiring structure and corresponds to the wiring hole, and is used for allowing an external structure to pass through to be connected to the wiring structure.

8. The axial motor according to claim 7, characterized in that: The first sealing structure also includes a first sealing ring, which is arranged in the opening and is used for allowing the external structure to pass through; the first sealing ring is used to press the inner circumferential wall of the opening and the external structure along the axial direction.

9. The axial motor according to claim 7 or 8, characterized in that: The first sealing structure further includes a second sealing ring, which is disposed around the outside of the first sealing seat and presses against the housing and the first sealing seat.

10. The axial motor according to claim 5 or 6, characterized in that: The first sealing structure is used to surround the outer periphery of the external structure and press the external structure and the housing along the axial direction of the axial motor.

11. The axial motor according to any one of claims 1 to 10, characterized in that: The axial motor further comprises a casing, the rotor, the stator and the wiring structure are all arranged in the casing, and the wiring structure is arranged in the casing; Alternatively, the axial motor further comprises a housing arranged between the stator and the rotor, and the wiring structure is arranged in the housing.

12. The axial motor according to any one of claims 1 to 11, characterized in that: The axial motor further comprises a conductive member connected to the stator and the wiring structure.

13. The axial motor according to claim 12, characterized in that: The wiring structure is provided with an inserting hole, the conductive member is inserted into the inserting hole, and a second sealing structure for sealing the inserting hole is provided between the wiring structure and the conductive member.

14. The axial motor according to claim 13, characterized in that The second sealing structure includes a second sealing seat sleeved on the outer periphery of the conductive member and a third sealing ring sleeved on the outer periphery of the second sealing seat, and the third sealing ring presses against the inner peripheral wall of the plug hole and the second sealing seat.

15. The axial motor according to any one of claims 1 to 14, characterized in that: The axial motor further comprises a casing, wherein the rotor, the stator and the wiring structure are all arranged in the casing; The axial motor further comprises a shell provided between the stator and the rotor, wherein a fourth sealing ring is provided on the outer sleeve of the shell, and the fourth sealing ring is pressed against the shell and the casing in the radial direction.

16. The axial motor according to any one of claims 1 to 15, characterized in that: The stators are disposed on opposite sides of the rotor along the axial direction, and the radial outer side of the rotor and two adjacent stators are enclosed to form the accommodation space.

17. The axial motor according to claim 16, characterized in that Two adjacent stators are connected to the wiring structure to form a parallel connection, and the wiring structure is used to conduct the stator and the external structure.

18. The axial motor according to claim 16, characterized in that There are multiple wiring structures, and the multiple wiring structures include a first wiring structure and a second wiring structure; two adjacent stators are connected to the first wiring structure to form a series connection; two adjacent stators are also connected to the second wiring structure, and the second wiring structure is used to connect to an external structure to conduct the stator and the external structure.

19. A powertrain, characterized in that: Comprising an axial motor according to any one of claims 1-18.

20. An electric device, characterized in that: It comprises an axial motor according to any one of claims 1 to 18 or a power assembly according to claim 19.

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