Motor control system and vehicle

Abstract

The utility model relates to a motor control system and a vehicle, relates to the field of new energy vehicles, and aims to reduce the weight of a shell of the motor control system and further improve the light weight of a vehicle body. The motor control system comprises a first shell, a second shell, a motor control module and a power module. The first shell is provided with a first side plate and a first bottom plate, and the first side plate surrounds the edge of the first bottom plate to form a first containing cavity with an opening in one side. The second shell is provided with a second side plate, a second bottom plate and a cover plate, the second side plate surrounds the edge of the second bottom plate to form a second containing cavity with an opening in one side, and the cover plate covers the opening of the second containing cavity. The second shell is connected with the first shell, and the second bottom plate covers the opening of the first containing cavity. One of the motor control module and the power supply module is arranged in the first shell, and the other one is arranged in the second shell. The motor control system is used for a vehicle.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and specifically to a motor control system and a vehicle. Background Art

[0002] With the increasing scarcity of fossil energy and the worsening environmental pollution, it has become a consensus among countries around the world to develop new energy vehicles to replace traditional fuel vehicles. New energy vehicles have been widely promoted and applied due to their energy-saving and environmentally friendly features. As the core of the vehicle, the motor control module and power module have an increasing demand for integrated, lightweight and economical motor control systems.

[0003] Chinese patent CN115320399A discloses a motor controller and a vehicle. The motor controller includes a housing structure, a power supply structure and an electric control structure. The housing structure has a first accommodating cavity and a second accommodating cavity, and the first accommodating cavity is arranged above the second accommodating cavity. The power supply structure is arranged in the first accommodating cavity. The electric control structure has a high-voltage filter module and an inverter, and the high-voltage filter module is arranged in the first accommodating cavity and is electrically connected to the power supply structure, and the inverter is arranged in the second accommodating cavity. The housing structure includes a motor housing, a housing cover, an upper housing and a lower housing, and the housing cover is arranged at the upper end of the motor housing, and the upper housing and the lower housing are arranged inside the motor housing.

[0004] However, the above-mentioned Chinese patent has some defects, specifically: the power supply structure is configured in a shell, and the shell and the electronic control structure are integrated in a casing, which makes the volume of the casing larger, resulting in a large space occupied by the motor controller, which will increase the weight of the vehicle itself and the manufacturing cost, thereby affecting the performance of the entire vehicle. Utility Model Content

[0005] The utility model provides a motor control system and a vehicle, so as to solve the technical problem that the integrated structure of a motor control module and a power module in the related technology increases the weight of the vehicle body itself.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] On the one hand, a motor control system is provided, comprising a first shell, a second shell, a motor control module and a power module. The first shell has a first side plate and a first bottom plate, the first side plate surrounds the edge of the first bottom plate to form a first accommodating cavity with an opening on one side. The second shell has a second side plate, a second bottom plate and a cover plate, the second side plate surrounds the edge of the second bottom plate to form a second accommodating cavity with an opening on one side, and the cover plate covers the opening of the second accommodating cavity. The second shell is connected to the first shell, and the second bottom plate covers the opening of the first accommodating cavity. One of the motor control module and the power module is arranged and fixed in the first shell, and the other is arranged and fixed in the second shell.

[0008] In the motor control system provided by the embodiment of the present disclosure, the power module and the motor control module are respectively encapsulated and fixed in the first shell and the second shell. Compared with the related art, the second shell does not need to be arranged in the space accommodating the first shell, which is conducive to reducing the volume of the second shell, reducing the occupied space of the motor control system, and improving the space utilization rate of the second shell, thereby reducing the weight of the vehicle body itself and the manufacturing cost, and improving the performance of the whole vehicle.

[0009] In addition, the second bottom plate of the second shell can also be used to seal the opening of the first accommodating cavity of the first shell, and the first shell does not need to be provided with a separate packaging structure. Compared with the related art, the embodiment of the present disclosure can also reduce a layer of plate material used to seal the opening of the first accommodating cavity of the first shell, which can further reduce the weight of the vehicle body itself and the manufacturing cost, and improve the performance of the whole vehicle. In addition, after the power module and the motor control module are respectively fixed in the first shell and the second shell, the first shell and the second shell are assembled. Compared with the power module and the motor control module being fixed on opposite sides of the same plate material, the number of times the installation direction is adjusted during the assembly process can be reduced, the assembly process is simplified, and the assembly efficiency is improved; at the same time, there is no need to consider the avoidance of the fixed structure of the power module and the motor control module, and the position of the power module and the motor control module is more flexible and the structure is simple.

[0010] In some embodiments, the motor control system further includes a screw connection structure, which includes a fixing plate, a connecting tube, a bolt and a nut. One of the fixing plate and the connecting tube is arranged on the peripheral side of the first side plate and is connected to the first side plate; the other is arranged on the peripheral side of the second side plate and is connected to the second side plate. The fixing plate is provided with a first connecting through hole, and the connecting tube is provided with a second connecting through hole. The bolt is fastened to the nut through the first connecting through hole and the second connecting through hole. At this time, the fixing plate on the peripheral side of the first side plate and the connecting tube on the peripheral side of the second side plate can abut against each other, which can reduce the risk of shaking between the first shell and the second shell, improve the stability of the connection between the first shell and the second shell, and facilitate disassembly.

[0011] In some embodiments, the motor control system includes a plurality of the screw connection structures, and the plurality of the screw connection structures are arranged at intervals along the circumference of the first side plate and the second side plate to improve the reliability and stability of the connection between the first shell and the second shell.

[0012] In some embodiments, the motor control system further includes a positioning structure, and the positioning structure includes a positioning column and a positioning cylinder. The positioning column is arranged on the fixed plate, and the positioning cylinder is connected to the target side plate, and the target side plate is the one of the first side plate and the second side plate that is not connected to the fixed plate. The positioning cylinder is provided with a positioning hole, and the positioning column is inserted into the positioning hole, so that the first connecting vias of each fixed plate and the second connecting vias of each connecting cylinder correspond one to one, thereby reducing the difficulty of screw connection. In addition, the positioning column and the first connecting via can be located on the same fixed plate, which can reduce the number of fixed plates, simplify the process flow, and reduce production costs.

[0013] In some embodiments, the motor control system includes a plurality of the positioning structures, and at least two of the positioning structures are arranged on opposite sides of the first side panel and the second side panel. This can more effectively prevent the first connecting via and the corresponding second connecting via from being offset after the first shell and the second shell are aligned.

[0014] In some embodiments, the fixing plate is disposed on the peripheral side of the first side plate and is connected to the first side plate. When assembling the first shell and the second shell, the second shell is placed below the first shell, and the bolts can pass through the second connecting through holes and the first connecting through holes from bottom to top and be fastened to the nuts. The operator can directly observe the alignment of the bolts and the nuts from the upper side, which is convenient for the operator to perform the fastening operation.

[0015] In some embodiments, the fixing plate and the first side plate are integrally formed, and the structural strength is high. The connecting tube and the second side plate are integrally formed, and the structural strength is high.

[0016] In some embodiments, the second side plate is in contact with the first side plate, so that the first shell supports and protects the second shell. The end of the second side plate close to the first shell exceeds the second bottom plate, so that there is a space between the second bottom plate and the end of the second side plate close to the first shell, which is conducive to avoiding the structure of the power module in the first shell.

[0017] In some embodiments, the cover plate is detachably connected to the second side plate, which facilitates the installation and maintenance of the power module or the motor control module disposed in the second accommodating cavity.

[0018] Therefore, the above technical features of the utility model have the following beneficial effects:

[0019] (1) In the motor control system provided in the embodiment of the present disclosure, the power module and the motor control module are respectively encapsulated and fixed in the first shell and the second shell. Compared with the related art, the second shell does not need to be arranged in the space accommodating the first shell, which is conducive to reducing the volume of the second shell, reducing the occupied space of the motor control system, and improving the space utilization rate of the second shell, thereby reducing the weight of the vehicle body itself and the manufacturing cost, and improving the performance of the whole vehicle.

[0020] In addition, the second bottom plate of the second shell can also be used to seal the opening of the first accommodating cavity of the first shell, and the first shell does not need to be provided with a separate packaging structure. Compared with the related art, the embodiment of the present disclosure can also reduce a layer of plate material used to seal the opening of the first accommodating cavity of the first shell, which can further reduce the weight of the vehicle body itself and the manufacturing cost, and improve the performance of the whole vehicle. In addition, after the power module and the motor control module are respectively fixed in the first shell and the second shell, the first shell and the second shell are assembled. Compared with the power module and the motor control module being fixed on opposite sides of the same plate material, the number of times the installation direction is adjusted during the assembly process can be reduced, the assembly process is simplified, and the assembly efficiency is improved; at the same time, there is no need to consider the avoidance of the fixed structure of the power module and the motor control module, and the position of the power module and the motor control module is more flexible and the structure is simple.

[0021] (2) The fixing plate on the circumferential side of the first side plate can abut against the connecting tube on the circumferential side of the second side plate, which can reduce the risk of shaking between the first shell and the second shell, improve the stability of the connection between the first shell and the second shell, and facilitate disassembly. In addition, multiple screw structures are arranged at intervals along the circumference of the first side plate and the second side plate to improve the reliability and stability of the connection between the first shell and the second shell.

[0022] (3) The positioning cylinder is provided with a positioning hole, and the positioning column is inserted into the positioning hole, so that the first connection holes of each fixing plate and the second connection holes of each connecting cylinder correspond to each other, thereby reducing the difficulty of screw connection. In addition, the positioning column and the first connection hole can be located on the same fixing plate, which can reduce the number of fixing plates, simplify the process flow, and reduce production costs.

[0023] (4) At least two positioning structures are disposed on opposite sides of the first side plate and the second side plate, so that the first connecting via and the corresponding second connecting via are more effectively prevented from being offset after the first shell and the second shell are aligned.

[0024] (5) The fixing plate is disposed on the peripheral side of the first side plate and is connected to the first side plate. When assembling the first shell and the second shell, the second shell is placed below the first shell, and the bolts can pass through the second connecting through holes and the first connecting through holes from bottom to top and be fastened to the nuts. The operator can directly observe the alignment of the bolts and nuts from the upper side, which is convenient for the operator to perform the fastening operation.

[0025] (6) The fixing plate and the first side plate are integrally formed, and the structural strength is high. The connecting tube and the second side plate are integrally formed, and the structural strength is high.

[0026] (7) The second side plate is in contact with the first side plate, so that the first shell supports and protects the second shell. The end of the second side plate close to the first shell extends beyond the second bottom plate. In this way, there is a space between the second bottom plate and the end of the second side plate close to the first shell, which is conducive to avoiding the structure of the power module in the first shell.

[0027] (8) The cover plate is detachably connected to the second side plate, which facilitates the installation and maintenance of the power module or motor control module disposed in the second accommodating cavity.

[0028] On the other hand, a vehicle is provided, comprising the motor control system described in the first aspect.

[0029] It should be noted that the technical effects brought about by any implementation method in the second aspect can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0032] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0033] Figure 2 A structural block diagram of a vehicle provided for some embodiments of the present application;

[0034] Figure 3 A schematic diagram of the structure of a motor control system provided in some embodiments of the present application;

[0035] Figure 4 A schematic structural diagram of a first shell provided in some embodiments of the present application;

[0036] Figure 5A schematic structural diagram of a second shell provided in some embodiments of the present application.

[0037] In the figure, 100 is a vehicle; 1 is a battery system; 2 is a drive motor system; 3 is a motor control system; 10 is a motor control module; 20 is a power module; 30 is a first shell; 31 is a first side plate; 32 is a first bottom plate; 33 is a first accommodating chamber; 40 is a second shell; 41 is a second side plate; 42 is a second bottom plate; 43 is a cover plate; 44 is a second accommodating chamber; 50 is a screw connection structure; 51 is a fixing plate; 511 is a first connecting hole; 52 is a connecting tube; 521 is a second connecting hole; 510 is a first screw connection structure; 520 is a second screw connection structure; 60 is a positioning structure; 61 is a positioning column; 62 is a positioning tube; 621 is a positioning hole. DETAILED DESCRIPTION

[0038] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0040] Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. Figure 2 A structural block diagram of a vehicle provided for some embodiments of the present application.

[0041] like Figure 1 As shown, an embodiment of the present application provides a vehicle 100, which can be a pure electric vehicle or a hybrid vehicle, or any new energy vehicle whose driving mode includes electric driving.

[0042] Combination Figure 2 The vehicle 100 may include a battery system 1, a drive motor system 2, and a motor control system 3. The battery system 1 is connected to the drive motor system 2 via the motor control system 3.

[0043] The battery system 1 includes a power battery, which can be used as a power source for the vehicle, responsible for storing electrical energy and providing power for the vehicle. The drive motor system 2 includes a motor, which is used to convert the electrical energy provided by the battery system 1 into mechanical energy to drive the vehicle 100 .

[0044] In addition, the motor control system 3 includes a motor control module 10 and a power module 20. The motor control module 10 is configured to collect various signals such as the throttle, brake pedal, and steering wheel of the vehicle 100 to control the motor to perform corresponding actions. The power module 20 is configured to convert the voltage from the power battery to drive the motor to move.

[0045] Figure 3 A schematic diagram of the structure of a motor control system provided in some embodiments of the present application; Figure 4 A schematic structural diagram of a first shell provided in some embodiments of the present application; Figure 5 A schematic structural diagram of a second shell provided in some embodiments of the present application.

[0046] like Figure 2 , Figure 3 and Figure 4 As shown, in the vehicle 100 provided in the embodiment of the present application, the motor control system 3 further includes a first housing 30 and a second housing 40, one of the motor control module 10 and the power module 20 is disposed and fixed in the first housing 30, and the other is disposed and fixed in the second housing 40. For example, the power module 20 is disposed and fixed in the first housing 30, and the motor control module 10 is disposed and fixed in the second housing 40.

[0047] In the following, some embodiments of the present disclosure are exemplarily described by taking the example that the power module 20 is disposed and fixed in the first housing 30 and the motor control module 10 is disposed and fixed in the second housing 40, but the embodiments of the present disclosure are not limited thereto.

[0048] like Figure 4 As shown, the first housing 30 has a first side plate 31 and a first bottom plate 32. The first side plate 31 surrounds the edge of the first bottom plate 32 to form a first accommodating cavity 33 with an opening on one side. The shape of the first bottom plate 32 can be circular, polygonal or other irregular shapes, but the embodiments of the present disclosure are not limited thereto.

[0049] like Figure 5 As shown, the second housing 40 has a second side plate 41, a second bottom plate 42 and a cover plate 43. The second side plate 41 surrounds the edge of the second bottom plate 42 to form a second accommodating cavity 44 with an opening on one side. The cover plate 43 covers the opening of the second accommodating cavity 44. The shape of the second bottom plate 42 can be circular, polygonal or other irregular shapes, but the embodiments of the present disclosure are not limited thereto.

[0050] The cover plate 43 and the second side plate 41 are detachably connected, which facilitates the installation and maintenance of the power module 20 or the motor control module 10 disposed in the second accommodating cavity 44. It should be noted that the cover plate 43 and the second side plate 41 can be connected, for example, by screwing or clamping, and the embodiments of the present disclosure are not limited thereto.

[0051] On this basis, the second housing 40 is connected to the first housing 30, and the second bottom plate 42 covers the opening of the first accommodating cavity 33. In this case, the power module 20 and the motor control module 10 are respectively packaged and fixed in the first housing 30 and the second housing 40. Compared with the related art, the second housing 40 does not need to be set in the space accommodating the first housing 30, which is conducive to reducing the volume of the second housing 40, reducing the occupied space of the motor control system, and improving the space utilization of the second housing 40, thereby reducing the weight of the vehicle body itself and the manufacturing cost, and improving the performance of the whole vehicle.

[0052] In addition, the second bottom plate 42 of the second shell 40 can also be used to seal the opening of the first accommodating cavity 33 of the first shell 30, and the first shell 30 does not need to be provided with a separate packaging structure. Compared with the related art, the embodiment of the present disclosure can also reduce a layer of plate material used to seal the opening of the first accommodating cavity 33 of the first shell 30, which can further reduce the weight and manufacturing cost of the vehicle body itself and improve the performance of the whole vehicle. In addition, after the power module 20 and the motor control module 10 are respectively fixed in the first shell 30 and the second shell 40, the first shell 30 and the second shell 40 are assembled. Compared with the power module 20 and the motor control module 10 being fixed on opposite sides of the same plate material, the number of times the installation direction is adjusted during the assembly process can be reduced, the assembly process is simplified, and the assembly efficiency is improved; at the same time, there is no need to consider the avoidance of the fixed structure of the power module 20 and the motor control module 10, and the position of the power module 20 and the motor control module 10 is more flexible and the structure is simple.

[0053] In some embodiments, Figure 3 As shown, the motor control system 3 further includes a screw connection structure 50 , and the first housing 30 and the second housing 40 are connected via the screw connection structure 50 . The connection between the first housing 30 and the second housing 40 is reliable and easy to disassemble.

[0054] It should be noted that the first shell 30 and the second shell 40 may also be connected by means of clamping, riveting, welding, etc., but the embodiments of the present disclosure are not limited thereto.

[0055] For example, Figure 4 and Figure 5As shown, the screw connection structure 50 includes a fixing plate 51, a connecting tube 52, bolts and nuts. One of the fixing plate 51 and the connecting tube 52 is arranged on the peripheral side of the first side plate 31 and connected to the first side plate 31, and the other is arranged on the peripheral side of the second side plate 41 and connected to the second side plate 41. Moreover, the fixing plate 51 and the connecting tube 52 can be integrally formed with the connected first side plate 31 or second side plate 41, or can be connected by welding, and the structural strength is high.

[0056] For example, the fixing plate 51 is disposed around the first side plate 31, and the fixing plate 51 and the first side plate 31 are integrally formed, and the structural strength is high. The connecting tube 52 is disposed around the second side plate 41, and the connecting tube 52 and the second side plate 41 are integrally formed, and the structural strength is high.

[0057] The fixing plate 51 is provided with a first connection through hole 511, and the connecting tube 52 is provided with a second connection through hole 521. The bolt passes through the first connection through hole 511 and the second connection through hole 521 and is fastened to the nut. At this time, the fixing plate 51 on the periphery of the first side plate 31 and the connecting tube 52 on the periphery of the second side plate 41 can abut against each other, which can reduce the risk of shaking between the first shell 30 and the second shell 40 and improve the stability of the connection between the first shell 30 and the second shell 40.

[0058] In addition, when the fixing plate 51 is arranged on the peripheral side of the first side plate 31 and the connecting tube 52 is arranged on the peripheral side of the second side plate 41, when assembling the first shell 30 and the second shell 40, the second shell 40 is placed below the first shell 30, and the bolts can pass through the second connecting through hole 521 and the first connecting through hole 511 from bottom to top and be fastened to the nuts. The operator can directly observe the alignment of the bolts and the nuts from the upper side, which is convenient for the operator to perform the fastening operation.

[0059] In some embodiments, see Figure 3 The number of the above-mentioned screw connection structures 50 is multiple, and the multiple screw connection structures are arranged at intervals along the circumference of the first side plate 31 and the second side plate 41 to improve the reliability and stability of the connection between the first shell 30 and the second shell 40.

[0060] Exemplarily, the first bottom plate 32 and the second bottom plate 42 are polygonal. The plurality of screw structures 50 include a first screw structure 510 and a second screw structure 520. The first screw structure 510 is located at a corner of the polygon, and the second screw structure 520 is located at a side of the polygon.

[0061] Furthermore, multiple second screw structures 520 may be provided on the same side to make the connection between the first shell 30 and the second shell 40 more firmly. For example, the first bottom plate 32 and the second bottom plate 42 include a long side and a short side, and the number of second screw structures 520 provided on the long side is 4, and the number of second screw structures 520 provided on the short side is 2.

[0062] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the motor control system 3 further includes a positioning structure 60, and the first housing 30 and the second housing 40 are positioned by the positioning structure 60. In this case, during the assembly process of the first housing 30 and the second housing 40, the first housing 30 and the second housing 40 can be positioned by the positioning structure 60 first, so that the first connection through-holes 511 of each fixing plate 51 and the second connection through-holes 521 of each connecting cylinder 52 correspond to each other; then, the first housing 30 and the second housing 40 are fixed by the screw connection structure 50, so that it is convenient for the bolts to pass through the second connection through-holes 521 and the first connection through-holes 511 and fasten to the nuts, reducing the difficulty of alignment during the screw connection process.

[0063] For example, Figure 4 and Figure 5 As shown, the positioning structure 60 includes a positioning column 61 and a positioning cylinder 62. The positioning column 61 is disposed on the fixing plate 51. The positioning cylinder 62 is connected to the target side plate, which is the one of the first side plate 31 and the second side plate 41 that is not connected to the fixing plate 51. Moreover, the positioning column 61 and the positioning cylinder 62 can be integrally formed with the fixing plate 51 or the target side plate connected thereto, or can be connected by welding, and the structural strength is high.

[0064] For example, the positioning column 61 is arranged on the fixing plate 51 , and the positioning column 61 and the fixing plate 51 are integrally formed, with high structural strength; the positioning cylinder 62 is arranged on the peripheral side of the second side plate 41 , and the positioning cylinder 62 and the second side plate 41 are integrally formed, with high structural strength.

[0065] The positioning tube 62 is provided with a positioning hole 621 , and the positioning column 61 is inserted into the positioning hole 621 , so that the first connecting holes 511 of each fixing plate 51 and the second connecting holes 521 of each connecting tube 52 correspond one to one, reducing the difficulty of screw connection operation.

[0066] In addition, the positioning column 61 and the first connecting via 511 can be located on the same fixing plate 51 , which can reduce the number of fixing plates 51 , thereby simplifying the process and reducing production costs.

[0067] In some embodiments, the motor control system 3 includes multiple positioning structures 60, and at least two positioning structures are arranged on opposite sides of the first side plate 31. This can more effectively prevent the first connecting via 511 and the corresponding second connecting via 521 from being offset after the first shell 30 and the second shell 40 are aligned.

[0068] For example, Figure 3 , Figure 4 and Figure 5 As shown, the motor control system 3 includes two positioning structures 60 , which are arranged on opposite corners of the fixing plate 51 .

[0069] In some embodiments, Figure 4 and Figure 5 As shown, the second side plate 41 abuts against the first side plate 31, so that the first housing 30 supports and protects the second housing 40. And the end of the second side plate 41 close to the first housing 30 exceeds the second bottom plate 42, so that there can be an escape space between the second bottom plate 42 and the end of the second side plate 41 close to the first housing 30, which is conducive to avoiding the structure of the power module 20 in the first housing 30.

[0070] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A motor control system, characterized in that: The motor control system (3) comprises: A first housing (30) comprising a first side plate (31) and a first bottom plate (32), wherein the first side plate (31) surrounds the edge of the first bottom plate (32) to form a first accommodating cavity (33) having an opening on one side; The second shell (40) comprises a second side plate (41), a second bottom plate (42) and a cover plate (43); the second side plate (41) surrounds the edge of the second bottom plate (42) to form a second accommodating cavity (44) having an opening on one side; the cover plate (43) covers the opening of the second accommodating cavity (44); the second shell (40) is connected to the first shell (30), and the second bottom plate (42) covers the opening of the first accommodating cavity (33); A motor control module (10) and a power module (20), wherein one of the motor control module (10) and the power module (20) is arranged in the first shell (30), and the other is arranged in the second shell (40).

2. The motor control system according to claim 1, characterized in that: It also includes a screw connection structure (50), wherein the screw connection structure (50) includes: a fixing plate (51) and a connecting tube (52), one of the fixing plate (51) and the connecting tube (52) being arranged on the peripheral side of the first side plate (31) and connected to the first side plate (31), and the other of the fixing plate (51) and the connecting tube (52) being arranged on the peripheral side of the second side plate (41) and connected to the second side plate (41); the fixing plate (51) being provided with a first connecting through hole (511), and the connecting tube (52) being provided with a second connecting through hole (521); and, A bolt and a nut, wherein the bolt passes through the first connection through hole (511) and the second connection through hole (521) and is fastened to the nut.

3. The motor control system according to claim 2, characterized in that: It comprises a plurality of the screw connection structures (50), and the plurality of the screw connection structures (50) are arranged at intervals along the circumference of the first side plate (31) and the second side plate (41).

4. The motor control system according to claim 2, characterized in that: It also includes a positioning structure (60), wherein the positioning structure (60) includes: A positioning column (61) is arranged on the fixing plate (51); A positioning cylinder (62) is connected to a target side plate, wherein the target side plate is one of the first side plate (31) and the second side plate (41) that is not connected to the fixing plate (51); the positioning cylinder (62) is provided with a positioning hole (621), and the positioning column (61) is inserted into the positioning hole (621).

5. The motor control system according to claim 4, characterized in that: It comprises a plurality of the positioning structures (60), and at least two of the positioning structures (60) are arranged on opposite sides of the first side plate (31) and the second side plate (41).

6. The motor control system according to claim 2, characterized in that: The fixing plate (51) is arranged on the peripheral side of the first side plate (31) and is connected to the first side plate (31).

7. The motor control system according to claim 6, characterized in that: The fixing plate (51) and the first side plate (31) are integrally formed, and the connecting tube (52) and the second side plate (41) are integrally formed.

8. The motor control system according to any one of claims 1 to 7, characterized in that: The second side plate (41) is in abutment with the first side plate (31), and one end of the second side plate (41) close to the first shell (30) exceeds the second bottom plate (42).

9. The motor control system according to any one of claims 1 to 7, characterized in that: The cover plate (43) is detachably connected to the second side plate (41).

10. A vehicle, characterized in that: The vehicle (100) comprises the motor control system (3) according to any one of claims 1 to 9.

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