Axial electric motor system and vehicle having the same

Abstract

The application provides an axial motor system and a vehicle with the same. The axial motor system comprises a motor main box body, a shaft hole is arranged in the middle of the motor main box body, a mounting boss is arranged on the first side of the shaft hole, a motor main cavity is formed on the first side of the shaft hole, and the motor main cavity is used for mounting a stator assembly. A plurality of power devices are arranged at intervals on the outer circumferential surface of the mounting boss, and cooling water channels are formed in the motor main box body, and at least part of the cooling water channels are formed in the mounting boss. In this way, the number of power devices can be set according to different motor models, thereby effectively improving the practicability of the axial motor system and effectively reducing the production cost of the axial motor system. Further, the axial motor system with the structure can effectively shorten the axial height of the motor, so that the motor is more compact, the motor realizes high integration and miniaturization design, and better cooling is provided for the capacitor, and the utilization rate of the capacitor is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor equipment, in particular to an axial motor system and a vehicle with the same. BACKGROUND

[0002] With the rapid development of new energy vehicles, the related technology is becoming mature, and the internal space of the vehicle is becoming more and more compact. Miniaturization, light weight and integration have become the mainstream direction of the development of new energy vehicles. The traditional separated structure of the drive motor control system as the core component of the new energy vehicle has gradually revealed a series of disadvantages such as large space volume, complex wiring, low system reliability and poor stability, which is difficult to meet the needs of the development of the times. If the controller and the drive motor are combined into one, the space volume occupied by the drive control system in the vehicle can be effectively reduced, the manufacturing cost of the controller and the drive motor can be reduced, and the connection stability of the drive control system can be improved. However, due to the large size of the controller, the common integrated method is to integrate the controller directly above the drive motor, which cannot effectively reduce the volume of the assembly, and still causes the structure to be heavy and the assembly structure to be complex. Moreover, the new energy products are updated quickly at present, and the development cost of the electric drive product is high. Usually, the product is designed for a specific type of power module, and when the power demand changes, it cannot be adjusted on the basis of the existing platform, that is, it cannot be applied to the platform, resulting in high production cost of the motor. SUMMARY

[0003] The main purpose of the present application is to provide an axial motor system and a vehicle with the same, so as to solve the problem of high production cost caused by the fact that the motor cannot be adjusted according to the demand performance in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an axial motor system is provided, comprising: a motor main box body, a shaft hole is arranged in the middle of the motor main box body, a mounting boss is arranged on the first side of the shaft hole in the motor main box body, a motor main cavity is formed on the first side of the shaft hole, and the motor main cavity is used for mounting a stator assembly; power devices, the power devices are multiple, and the multiple power devices are arranged at intervals along the outer circumferential surface of the mounting boss; wherein a cooling water channel is arranged in the motor main box body, and at least part of the cooling water channel is arranged in the mounting boss.

[0005] Further, the first side of the motor main box body is further provided with an annular boss, the outer diameter of the annular boss is greater than the maximum distance of the mounting boss extending outward in the radial direction of the shaft hole, the mounting boss is protrudingly arranged on one side of the annular boss, and the mounting boss extends along the circumferential direction of the annular boss by a preset distance.

[0006] Further, the mounting boss has a first end and a second end, a geometric center line of the mounting boss in a circumferential direction of the annular boss is an arc, and a distance between the first end of the mounting boss and the second end of the mounting boss is provided to form a motor winding outgoing line avoiding space.

[0007] Further, the cooling water channel includes a first water channel, the first water channel is arranged in the mounting boss, and the first water channel is arranged in extension along the circumferential direction of the mounting boss, wherein a water inlet of the first water channel is arranged at the first end of the mounting boss, and a water outlet of the first water channel is arranged at the second end of the mounting boss.

[0008] Further, the cooling water channel includes a second water channel, the second water channel is arranged in the annular boss, and the second water channel is arranged in extension along the circumferential direction of the annular boss.

[0009] Further, an outer circumferential surface of the mounting boss is provided with a plurality of straight surfaces, the plurality of straight surfaces are arranged in the circumferential direction of the mounting boss, adjacent straight surfaces are arranged at an included angle, and at least one power device is arranged on each straight surface.

[0010] Further, the axial motor system further includes a first circuit board, and the first circuit board is provided with at least one of a motor alternating current connection port, a power device terminal connection port, a negative electrode output terminal connection port of a direct current bus capacitor, and a positive electrode output terminal connection port of the direct current bus capacitor.

[0011] Further, the axial motor system further includes a second circuit board, and the second circuit board is located on one side of the first circuit board.

[0012] Further, the axial motor system further includes a direct current bus capacitor, the direct current bus capacitor has an annular structure, an inner circumferential surface of the direct current bus capacitor is arranged in the circumferential direction of the mounting boss, and an end surface of one end of the direct current bus capacitor is arranged in abutment with the annular boss, a controller cover is connected with the annular boss, an installation space is formed between the controller cover and the annular boss, the direct current bus capacitor, the mounting boss, and the power device are located in the installation space, and a side wall of the controller cover is provided with a direct current input interface.

[0013] According to another aspect of the present application, a vehicle is provided, including: an axial motor system, the axial motor system being the above-mentioned axial motor system.

[0014] Applying the technical solution of this invention, a mounting boss is provided on the first side of the shaft hole in the main motor housing, forming the main motor cavity, which is used to mount the stator assembly. Multiple power devices are spaced apart on the outer circumferential surface of the mounting boss, and cooling water channels are formed within the main motor housing, with at least a portion of the cooling water channels located within the mounting boss. This arrangement allows for adjusting the number of power devices according to different motor models, effectively improving the practicality of the axial motor system and significantly reducing its production cost. Furthermore, the axial motor system employing this structure effectively shortens the axial height of the motor, making it more compact, achieving high integration and miniaturization, and providing better cooling for the capacitor, thus improving capacitor utilization. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of a first embodiment of an axial motor system according to the present invention is shown;

[0017] Figure 2 A cross-sectional schematic diagram of an embodiment of an axial motor system according to the present invention is shown;

[0018] Figure 3 An exploded structural schematic diagram of a second embodiment of the axial motor system according to the present invention is shown;

[0019] Figure 4 A schematic diagram of a third embodiment of the axial motor system according to the present invention is shown;

[0020] Figure 5 The structural intent of a fourth embodiment of the axial motor system according to the present invention is shown;

[0021] Figure 6 A schematic diagram of an embodiment of the DC bus capacitor according to the present invention is shown;

[0022] Figure 7 A schematic diagram of an embodiment of the discrete power device according to the present invention is shown;

[0023] Figure 8 A schematic diagram of the structure of an embodiment of the motor housing according to the present invention is shown;

[0024] Figure 9 A schematic diagram of the structure of a first embodiment of the circuit board according to the present invention is shown;

[0025] Figure 10 A structural schematic diagram of a fifth embodiment of an axial motor system according to the present application is shown.

[0026] Wherein, the above figures include the following reference signs:

[0027] 100, motor system;

[0028] 10, controller cover;

[0029] 20, motor main box; 201, shaft hole; 202, mounting boss; 203, annular boss; 204, motor winding outlet avoiding space.

[0030] 11, DC input interface; 110, motor rotor;

[0031] 21, motor main cavity; 22, DC bus capacitor support surface; 23, controller cover and motor main box connection point; 24, power device fixing wall; 25, first water channel; 26, water inlet channel; 27, water outlet channel; 28, straight surface; 29, bearing seat;

[0032] 30, DC bus capacitor; 31, DC positive input terminal; 32, DC negative input terminal; 33, DC positive output terminal; 34, DC negative output terminal; 51, discrete power device terminal;

[0033] 40, circuit board; 41, motor AC connection port; 42, power device terminal connection port; 43, DC bus capacitor negative output terminal connection port; 44, DC bus capacitor positive output terminal connection port; 45, second circuit board;

[0034] 50, power device;

[0035] 60, motor winding; 61, motor winding outlet end; 62, motor winding non-outlet end;

[0036] 70, resolver assembly; 80, bearing; 90, motor stator. DETAILED DESCRIPTION

[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0039] It is to be understood that the terms "first", "second", and the like, used in the specification and claims herein, are used to distinguish between similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of practical implementation in other than the order illustrated or other than the order described herein. Moreover, the terms "comprise", "comprising", "include", "including", and the like, are typically used herein to indicate the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0040] Reference will now be made in detail to the exemplary embodiments of the present application, which are illustrated in the accompanying drawings. However, these exemplary embodiments can be implemented in various manners, and should not be construed as being limited to the embodiments set forth herein. It should be understood that the embodiments are provided in order to make the present disclosure complete and comprehensive, and to sufficiently convey the ideas of the exemplary embodiments to those of ordinary skill in the art. In the drawings, the thicknesses of layers and regions can be exaggerated for clarity, and the same reference numerals are used to designate the same elements throughout the drawings, and thus a description thereof will be omitted.

[0041] In conjunction with Figures 1 to 10 As shown, according to a specific embodiment of the present application, an axial motor system is provided.

[0042] Specifically, as Figure 8 The middle portion of the motor main housing 20 is provided with a shaft hole 201, and a mounting boss 202 is provided on the first side of the shaft hole 201 in the motor main housing 20. The first side of the shaft hole 201 forms a motor main cavity 21, which is used to mount a stator assembly. A plurality of power devices 50 are arranged at intervals on the outer circumferential surface of the mounting boss 202. In addition, cooling water channels are formed in the motor main housing 20, and at least part of the cooling water channels are formed in the mounting boss 202.

[0043] In the embodiment, the number of power devices can be set according to different motor models, so that the practicability of the axial motor system is effectively improved, and the production cost of the axial motor system is effectively reduced. Further, the axial motor system with the structure can effectively shorten the axial height of the motor, so that the motor is more compact, the motor realizes high integration and miniaturization design, and better cooling is provided for the capacitor, and the utilization rate of the capacitor is improved.

[0044] Further, the first side of the motor main body 20 is further provided with an annular boss 203, as shown in Figure 5 The outer diameter of the annular boss 203 is greater than the maximum distance of the mounting boss 202 extending outward along the radial direction of the shaft hole 201, the mounting boss 202 protrudes on one side of the annular boss 203, and the mounting boss 202 extends along the circumferential direction of the annular boss 203 by a predetermined distance. This arrangement can increase the contact area of the DC bus capacitor 30, the power device and the annular boss 203 and the mounting boss 202, and improve the installation stability of the DC bus capacitor 30 and the power device.

[0045] As shown in Figure 5 The mounting boss 202 has a first end and a second end, the geometric center line of the mounting boss 202 along the circumferential direction of the annular boss 203 is an arc, and the first end of the mounting boss 202 is arranged at a distance from the second end of the mounting boss 202 to form a motor winding wire outlet avoiding space 204. This arrangement can facilitate the wiring of the motor winding, compact the space layout, increase the mounting area of the mounting boss 202, and increase the number of power devices.

[0046] As shown in Figure 8 The first water channel 25 included in the cooling water channel is arranged in the mounting boss 202, and the first water channel 25 extends along the circumferential direction of the mounting boss 202, wherein the water inlet 26 of the first water channel 25 is arranged at the first end of the mounting boss 202, and the water outlet 27 of the first water channel 25 is arranged at the second end of the mounting boss 202. This arrangement can effectively cool the circuit board, the power device 50 and the bearing 80 and the bearing seat 29, improve the working reliability of the bearing and the efficiency of the motor system.

[0047] In another embodiment of the present application, the cooling water channel includes a second water channel (not shown in the figure), and the second water channel is arranged in the annular boss 203 and extends along the circumferential direction of the annular boss 203. This scheme not only increases the space utilization rate but also effectively cools the capacitor to ensure the utilization efficiency of the capacitor.

[0048] Specifically, as shown in Figure 5As shown, the outer circumferential surface of the mounting boss 202 is provided with a plurality of straight faces 28, which are arranged along the circumference of the mounting boss 202, and adjacent straight faces 28 are arranged at an included angle, and at least one power device 50 is arranged on each straight face 28. Such arrangement can increase the number of power devices 50 and improve the mounting stability of the power devices.

[0049] As shown in the drawings, Figure 10 The axial motor system further comprises a first circuit board 40. As shown in the drawings, Figure 9 The circuit board is provided with a motor AC connection port 41, a power device terminal connection port 42, a DC bus capacitor negative output terminal connection port 43, and a DC bus capacitor positive output terminal connection port 44, and the power device terminal, the motor winding outlet terminal, and the DC bus capacitor output terminal are connected to the corresponding areas of the circuit board by welding, without reserving bolt assembly space. The circuit board integrates the functions of driving, control, inverter AC bus, motor bus, etc., reduces the number of motor system components, realizes deep integration of the structure of the axial motor system, is more compact and convenient to assemble, and is reliable in connection.

[0050] In another embodiment of the present application, as shown in the drawings, Figure 10 The axial motor system further comprises a second circuit board 45. The second circuit board 45 is located on one side of the first circuit board 40, as shown in the drawings, Figure 10 Such arrangement can make the circuit board arrangement of the axial motor more reasonable, and can increase the circuit board structure according to actual needs without affecting the axial height of the motor.

[0051] Further, the axial motor system further comprises a DC bus capacitor 30 and a controller cover 10, as shown in the drawings, Figure 6 The DC bus capacitor 30 comprises a DC positive input terminal 31, a DC negative input terminal 32, a DC positive output terminal 33, and a DC negative output terminal 34. Moreover, the DC bus capacitor 30 has a ring structure, and the inner circumferential surface of the DC bus capacitor 30 is arranged along the circumference of the mounting boss 202, and the end surface of one end thereof is arranged in abutment with the annular boss. Such arrangement not only saves space, but also increases the heat dissipation area between the cooling water channel and the DC bus capacitor 30 and the power device 50, effectively improving the performance of the motor. As shown in the drawings, Figure 1 Figure 3 The controller cover 10 is connected with the annular boss 203, so that a mounting space is formed therebetween, and the DC bus capacitor 30, the DC negative output mounting boss 202, and the power device 50 are located in the mounting space. A DC input interface 11 is arranged on the side wall of the controller cover 10. With this design, the motor and the inverter share a shell and a cooling water channel, and the connection structure between the traditional separate structures of the controller and the motor is removed, greatly reducing the space occupation range.

[0052] ​In another embodiment of the present application, as shown in Figure 4 , Figure 7 The power device is preferably a discrete power device having a discrete power device terminal 51. The discrete power device terminal 51, the motor winding outgoing terminal 61, and the DC bus capacitor 30 output terminal are all connected to the corresponding areas of the circuit board by welding. This arrangement simplifies the connection method, makes the connection between components more simple and reliable, and makes the layout of the entire motor structure more compact, without the need to reserve bolt assembly space.

[0053] In another embodiment of the present application, as shown in Figure 2 The figure shows a perspective view of the structure of the axial motor system 100 of the present application. 22 is a DC bus capacitor support surface, 23 is a controller cover and motor main body connection point, 24 is a power device fixing wall, 60 is a motor winding, 62 is a motor winding non-outgoing terminal, 70 is a rotary transformer assembly, 90 is a motor stator, and 110 is a motor rotor.

[0054] The axial motor system in the above embodiments can be used in the field of vehicle technology. According to another aspect of the present application, a vehicle is provided, comprising an axial motor system, which is the axial motor system in the above embodiments. This system can reduce the space occupied by the drive control system in the vehicle and reduce the mass of the drive control system.

[0055] In the prior art, the motor and the controller are usually separate structures, and are assembled separately and then connected by bolts for simple physical integration. This has little effect on reducing the space occupied by the drive control system in the vehicle and reducing the mass of the drive control system. In addition, some motors and controllers are designed with a common shell for deeper physical integration. This design eliminates the connection structure between the traditional separate structure of the controller and the motor, reduces the space occupied by the drive control system in the vehicle, and reduces the mass of the drive control system. However, the overall layout is not compact enough, and a custom-designed three-phase fixed support is needed to connect with the motor's busbar, which is a relatively complex structure. At the same time, this design is only applicable to a certain type of power module and is difficult to be applied to a platform. In addition, the design of the heat dissipation cavity can only cool the power module and cannot cool the capacitor and other components, resulting in low utilization rate of the capacitor.

[0056] One existing technology discloses an axially integrated electric vehicle motor control system, including a drive motor and a motor controller. The motor controller includes a housing and a power module, control board, thin-film capacitor, etc., housed within the housing. The motor controller is located on the axial rear end face of the drive motor. The power module includes a drive board, an IGBT module, and a heat dissipation base plate arranged sequentially from top to bottom. The heat dissipation base plate has a heat dissipation cavity, and the bottom of the heat dissipation cavity has a liquid inlet and a liquid outlet located at opposite ends along the diagonal. The liquid inlet and the liquid outlet are respectively connected to a first liquid inlet pipe and a first liquid outlet pipe provided on the housing. Compared with the prior art, although this invention reduces the space occupied by the drive control system in the vehicle and lowers the weight of the drive control system by installing the motor controller on the axial direction of the drive motor, eliminating the traditional separate structure between the controller and the motor, the overall layout is not compact enough. It requires a custom-designed three-phase fixed support and a custom-designed busbar for the motor, making the connection relatively complex. At the same time, this design is only for a certain type of power module, making it difficult to apply across a platform. In addition, the heat dissipation cavity design can only provide cooling for the power module and cannot dissipate heat for capacitors and other components, resulting in low capacitor utilization.

[0057] Existing technology also discloses an automotive inverter, comprising: a housing; a cooling base plate disposed between the housing and the motor; and a top cover fixed to the upper end of the housing to seal the opening at the upper end of the housing. A capacitor, a power module, a current sensor, and an AC terminal block are fixed on the cooling base plate; a DC terminal block is fixed on the top cover, and a circuit board is disposed above the power module and the current sensor. Integrating the power module, its circuit board, capacitor, current sensor, and AC terminal block onto the cooling base plate through a specific positional relationship, with the top cover mounted on the housing and the DC terminal block integrated into the inverter's top cover, reduces the number of busbars and sensor harnesses found in other inverters, resulting in a more compact inverter structure and better heat dissipation. However, this design requires a custom-designed three-phase mounting bracket and a custom-designed busbar for the motor, making the connection complex. Furthermore, this design is only suitable for a specific power module model, making platform-based application difficult.

[0058] Existing technology also discloses a motor inverter assembly for new energy vehicles, including: an inverter assembly, a motor shaft, a rotor core, a stator assembly, a motor housing, and a front cover. The front end of the motor housing is connected to the front cover, and the rear end is connected to the inverter housing of the inverter assembly. The inverter housing, motor housing, and front cover are connected and fixed together along the axial direction of the motor shaft by a bolt. The rotor core is mounted on the motor shaft, and the stator assembly is mounted on the rotor core, including the stator core and windings wound on the stator core. The windings are formed by using flat wire pin windings. The front end of the motor is supported on the front cover, and the rear end of the motor is supported on the inverter housing. This solution integrates a common water channel for the motor inverter assembly, but the overall layout is not compact enough.

[0059] In the present application, the circuit board is preferably a control-drive integrated board, and an AC connection area is arranged on the circuit board to replace the functions of the controller AC busbar and the motor busbar, so that the structure is more compact, the connection is more convenient, and the cost is lower. If the arrangement space cannot meet the demand of the control-drive integrated board, the control part circuit can be separately arranged on a board and placed above it, that is, only one circuit board can be arranged in the present application, or multiple circuit boards can be arranged.

[0060] Moreover, in the present application, the motor and the inverter share a shell and a cooling water path, the connection structure between the traditional separated structure of the controller and the motor is removed, the space occupation range of the drive control system in the whole vehicle is reduced, and the mass of the drive control system is reduced. The motor and the controller are axially integrated, the motor system assembly space is greatly reduced, the space layout of the axial motor system is compact, and the whole vehicle arrangement is facilitated. The discrete power devices are arranged in a ring and are surface-mounted, the assembly space is reduced, the assembly is facilitated, the axial length is reduced, and the motor system is miniaturized.

[0061] It can be seen that the present application achieves the following technical effects: saving space, reducing cost, and improving production efficiency. A high-integration, miniaturization, and low-cost motor system is realized.

[0062] For the convenience of description, spatial relative terms such as "above", "upper", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0063] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment" and the like mentioned in the present specification refer to specific features, structures or characteristics described in conjunction with the embodiment, which are included in at least one embodiment generally described in the present application. The same description appears in several places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the implementation of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present application.

[0064] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0065] The above only provides preferred embodiments of the application but is not intended to limit the application. The application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An axial motor system, characterized in that, include: The motor main housing (20) has a shaft hole (201) in the middle and a mounting boss (202) is provided on the first side of the shaft hole (201) in the motor main housing (20). The motor main cavity (21) is formed on the first side of the shaft hole (201) and is used to install the stator assembly. Power devices (50), there are multiple power devices (50), and the multiple power devices (50) are arranged at intervals along the outer peripheral surface of the mounting boss (202); The motor main housing (20) is provided with cooling water channels, and at least a portion of the cooling water channels are provided within the mounting boss (202). The first side of the motor main housing (20) is also provided with an annular boss (203). The outer diameter of the annular boss (203) is greater than the maximum distance that the mounting boss (202) extends outward along the radial direction of the shaft hole (201). The mounting boss (202) is protrudingly provided on one side of the annular boss (203), and the mounting boss (202) extends a preset distance along the circumference of the annular boss (203). The cooling water channel includes a second water channel, which is formed within the annular boss (203) and extends circumferentially along the annular boss (203).

2. The axial motor system according to claim 1, characterized in that, The mounting boss (202) has a first end and a second end. The geometric center line of the mounting boss (202) along the circumferential direction of the annular boss (203) is an arc. The first end of the mounting boss (202) and the second end of the mounting boss (202) are arranged at a distance to form a motor winding lead-out clearance space (204).

3. The axial motor system according to claim 2, characterized in that, The cooling water channel includes a first water channel (25), which is disposed within the mounting boss (202) and extends circumferentially along the mounting boss (202). The inlet channel (26) of the first water channel (25) is located at the first end of the mounting boss (202), and the outlet channel (27) of the first water channel (25) is located at the second end of the mounting boss (202).

4. The axial motor system according to claim 1, characterized in that, The outer peripheral surface of the mounting boss (202) is provided with a plurality of straight surfaces (28), which are arranged along the circumference of the mounting boss (202). Adjacent straight surfaces (28) are arranged at an angle, and at least one power device (50) is provided on each straight surface (28).

5. The axial motor system according to claim 1, characterized in that, The axial motor system further includes a first circuit board (40), on which at least one of the following is provided: a motor AC power connection port (41), a power device terminal connection port (42), a negative output terminal connection port (43) of a DC bus capacitor, and a positive output terminal connection port (44) of a DC bus capacitor is provided.

6. The axial motor system according to claim 5, characterized in that, The axial motor system also includes a second circuit board (45), which is located on one side of the first circuit board (40).

7. The axial motor system according to claim 1, characterized in that, The axial motor system also includes: DC bus capacitor (30), the DC bus capacitor (30) is a ring structure, the inner circular surface of the DC bus capacitor (30) is arranged along the circumference of the mounting boss (202), and the end face of one end of the DC bus capacitor (30) is grounded against the ring boss. The controller cover (10) is connected to the annular boss (203), and an installation space is formed between the controller cover (10) and the annular boss (203). The DC bus capacitor (30), the mounting boss (202), and the power device (50) are located in the installation space. The side wall of the controller cover (10) is provided with a DC input interface (11).

8. A vehicle comprising an axial motor system, characterized in that, The axial motor system is the axial motor system according to any one of claims 1 to 7.

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