Motor controller, preparation method, motor control system and vehicle

Abstract

The invention discloses a motor controller, a preparation method, a motor control system and a vehicle, the motor controller comprises a control main box and a junction box, an inversion assembly can be arranged in the control main box, and the control main box is provided with a single-motor wiring side and a dual-motor wiring side. The single-motor wiring side and / or the double-motor wiring side are / is detachably provided with a wiring box, a wiring seat capable of being electrically connected with the inversion assembly is arranged in the wiring box, and an interface on the wiring seat is arranged to be electrically connected with a motor corresponding to the wiring side, so that the single-motor output and the double-motor output can be suitable for both single-motor output and double-motor output. And the single-motor controller and the dual-motor controller can share a development mold of the control main box, so that the purpose of reducing the development cost is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor control, and particularly relates to a motor controller, a preparation method, a motor control system and a vehicle. Background Art

[0002] As one of the core components of an electric vehicle, the motor controller is a decisive factor for the vehicle's power performance. It obtains the vehicle's requirements from the vehicle controller and electrical energy from the power battery pack. Through the modulation of its own inverter, it obtains the current and voltage required to control the motor and supplies them to the motor, so that the speed and torque of the motor meet the requirements of the vehicle.

[0003] Currently, there are two forms: single-motor controllers and dual-motor controllers. A single-motor controller is only equipped with one motor, which can reduce the complexity and cost in the manufacturing process, and is easier to maintain and repair due to its simplified structure. However, its power output is limited, and its acceleration and handling performance are weak, making it suitable for urban roads and small vehicles. A dual-motor controller can provide stronger power performance, acceleration performance and handling performance through the coordinated action of different motors on the front and rear axles, making it suitable for highways and large vehicles. However, the manufacturing cost of a dual-motor controller is relatively high, and its maintenance and repair are also more complex. In the prior art, a single-motor controller only needs to integrate 1 set of UVW three-phase lines, while a dual-motor controller needs to integrate 2 sets of UVW three-phase lines. Since the output three-phase lines of the two types of motor controllers are different, generally different development molds are used, resulting in high development costs and the inability to share development molds. Summary of the Invention

[0004] In view of the above defects or deficiencies, the present invention provides a motor controller, a preparation method, a motor control system and a vehicle, aiming to solve the technical problem of high development costs caused by the inability to share development molds between single-motor controllers and dual-motor controllers.

[0005] To achieve the above object, in a first aspect of the present invention, a motor controller is provided. The motor controller includes a control main box and a wiring box. An inverter component may be provided in the control main box, and the control main box has a single-motor wiring side and a dual-motor wiring side. The single-motor wiring side and / or the dual-motor wiring side are both detachably provided with a wiring box, and a wiring seat electrically connectable to the inverter component is provided in the wiring box. The interfaces on the wiring seat are configured to be electrically connectable to the motors corresponding to the respective wiring sides.

[0006] In an embodiment of the present invention, the wiring box is a single-motor wiring box, which is detachably provided on the single-motor wiring side. A single-motor wiring seat electrically connectable to the inverter component is provided in the single-motor wiring box. The single-motor interface of the single-motor wiring seat is exposed and available for electrical connection to a single motor.

[0007] In an embodiment of the present invention, the junction box is a dual-motor junction box. The dual-motor junction box is detachably arranged on the side of the dual-motor wiring. A dual-motor wiring seat that can be electrically connected to the inverter assembly is arranged inside the dual-motor junction box. The dual-motor interfaces of the dual-motor wiring seat are exposed and can be used for the electrical connection of the dual motors.

[0008] In an embodiment of the present invention, an inverter installation area and a wiring installation area are arranged inside the main control box. The wiring installation area is arranged between the inverter installation area and the side of the single-motor wiring. The inverter installation area can be used for installing the inverter assembly. A single-motor wiring seat can be arranged in the wiring installation area. The single-motor interface on the single-motor wiring seat is exposed on the side of the single-motor wiring and can be used for the electrical connection of the single motor.

[0009] In an embodiment of the present invention, the main control box is open on both the side of the single-motor wiring and the side of the dual-motor wiring. The single-motor junction box is arranged to be in through connection with the open end on the side of the single-motor wiring, or the dual-motor junction box is arranged to be in through connection with the open end on the side of the dual-motor wiring.

[0010] In an embodiment of the present invention, a first installation opening is formed on the side of the dual-motor wiring of the main control box. A first sealing groove that is recessed inward is formed around the periphery of the first installation opening of the main control box. The first sealing groove can accommodate a first sealing gasket. The dual-motor junction box is detachably connected to the main control box through a first fastener, and the first sealing gasket is pressed tightly in the first sealing groove.

[0011] In an embodiment of the present invention, the main control box is set as a cuboid, and the side of the single-motor wiring and the side of the dual-motor wiring are respectively and correspondingly set as the short side and the long side of the main control box.

[0012] In an embodiment of the present invention, the side of the single-motor wiring and the side of the dual-motor wiring are set as two adjacent sides of the main control box. The inverter assembly includes a capacitor module, a power module, and a connecting copper bar. The power module is arranged between the capacitor module and the side of the dual-motor wiring. The number of power modules is six. The six power modules are arranged at intervals in sequence along the length direction of the side of the dual-motor wiring. The connecting copper bar can parallelly connect two adjacent power modules in the case of single-motor control to form three power module groups that are respectively and correspondingly connected to the three three-phase interfaces in the single-motor interface, or can respectively and correspondingly connect the power modules and the three-phase interfaces of the dual-motor interface in the case of dual-motor control.

[0013] To achieve the above object, a second aspect of the present invention provides a preparation method for a motor controller, wherein the preparation method includes:

[0014] Providing a main control box with a side of single-motor wiring and a side of dual-motor wiring;

[0015] When it is determined to prepare a single-motor controller, the single-motor junction box is detachably arranged on the single-motor wiring side of the control main box;

[0016] When it is determined to prepare a double-motor controller, the double-motor junction box is detachably arranged on the double-motor wiring side of the control main box.

[0017] To achieve the above object, a third aspect of the present invention provides a motor control system, wherein the motor control system includes a control motor and the motor controller according to the above description. The control motor is electrically connected to the interface arranged on the single-motor wiring side when set as a single motor, or is electrically connected to the interface arranged on the double-motor wiring side when set as a double motor.

[0018] To achieve the above object, a fourth aspect of the present invention provides a vehicle, wherein the vehicle includes the motor control system according to the above description.

[0019] Through the above technical solutions, the motor controller provided by the present invention has the following beneficial effects:

[0020] When using the above motor controller, since it includes a control main box and a junction box, the control main box has a single-motor wiring side and a double-motor wiring side, and the junction box can be detachably arranged on the single-motor wiring side and / or the double-motor wiring side according to requirements. When the junction box is arranged on the single-motor wiring side, the interfaces on the wiring seat in the junction box can be used for the single motor to be electrically connected. When the junction box is arranged on the double-motor wiring side, the interfaces on the wiring seat in the junction box can be used for the double motor to be electrically connected. Thus, it can meet the connection requirements for both single-motor output and double-motor output. The single-motor controller and the double-motor controller can share the development mold of the control main box, achieving the purpose of reducing the development cost. At the same time, when the motor control system is upgraded, there is no need to redesign and replace the entire motor controller housing, reducing the cost and time of system upgrade, and enabling the motor control system to quickly adapt to the needs of market changes and technological development.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0022] The drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. They are used together with the following specific implementation to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0023] Figure 1It is a schematic structural diagram of the motor controller in the first embodiment of the present invention for dual-motor control;

[0024] Figure 2 It is a schematic structural diagram of the motor controller in the first embodiment of the present invention for single-motor control;

[0025] Figure 3 It is a schematic structural diagram of the motor controller in the second embodiment of the present invention for dual-motor control;

[0026] Figure 4 It is a schematic structural diagram of the motor controller in the second embodiment of the present invention for single-motor control;

[0027] Figure 5 It is a schematic structural diagram of the side of the dual-motor wiring according to an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 100 Control main box 101 Single-motor wiring side

[0030] 102 Dual-motor wiring side 120 Single-motor junction box

[0031] 121 Single-motor terminal block 122 Single-motor interface

[0032] 130 Inverter installation area 140 Wiring installation area

[0033] 150 First installation opening 151 First sealing groove

[0034] 160 First gasket 200 Dual-motor junction box

[0035] 210 Dual-motor terminal block 220 Dual-motor interface

[0036] 300 Inverter assembly 310 Capacitor module

[0037] 320 Power module 330 Connecting copper bar

[0038] 400 Power supply positive and negative interfaces Detailed implementation manners

[0039] The following is a detailed description of specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0040] The motor controller, preparation method, motor control system and vehicle of the present invention will be described below with reference to the accompanying drawings.

[0041] As Figures 1 to 4As shown, the present invention provides a motor controller, wherein the motor controller includes:

[0042] A control main box 100, an inverter component 300 may be provided in the control main box 100, and the control main box 100 has a single-motor wiring side 101 and a dual-motor wiring side 102;

[0043] A junction box, the single-motor wiring side 101 and / or the dual-motor wiring side 102 are both detachably provided with a junction box, and a wiring seat electrically connectable to the inverter component 300 is provided in the junction box, and the interfaces on the wiring seat are set to be electrically connectable to the motors corresponding to the respective wiring sides.

[0044] When using the above motor controller, since it includes a control main box 100 and a junction box, the control main box 100 has a single-motor wiring side 101 and a dual-motor wiring side 102, and the junction box 200 can be detachably provided on the single-motor wiring side 101 and / or the dual-motor wiring side 102 according to requirements. When the junction box is provided on the single-motor wiring side 101, the interfaces on the wiring seat in the junction box are available for single-motor electrical connection. When the junction box is provided on the dual-motor wiring side 102, the interfaces on the wiring seat in the junction box are available for dual-motor electrical connection. Thus, it can be adapted to both single-motor output and dual-motor output connection requirements. The single-motor controller and the dual-motor controller can share the development mold of the control main box 100, achieving the purpose of reducing development costs. At the same time, when the motor control system is upgraded, there is no need to redesign and replace the entire motor controller housing, reducing the cost and time of system upgrade, enabling the motor control system to quickly adapt to market changes and the needs of technological development.

[0045] As Figure 1 and Figure 2 shown, in the first embodiment of the present invention, there are three ways to connect the junction box to the control main box 100.

[0046] Figure 2 What is shown is connecting the junction box on the single-motor wiring side 101 of the control main box 100 provided in the first embodiment. At this time, the junction box is a single-motor junction box 120, the single-motor junction box 120 is detachably provided on the single-motor wiring side 101, a single-motor wiring seat 121 electrically connectable to the inverter component 300 is provided in the single-motor junction box 120, and the single-motor interface 122 of the single-motor wiring seat 121 is externally exposed and available for single-motor electrical connection. Then, by combining the control main box 100 and the single-motor junction box 120, a single-motor controller can be obtained.

[0047] Figure 1Shown is the connection of the junction box to the dual - motor wiring side 102 of the control main box 100 provided in the first embodiment. At this time, the junction box is a dual - motor junction box 200. The dual - motor junction box 200 is detachably arranged on the dual - motor wiring side 102. Inside the dual - motor junction box 200, there is a dual - motor wiring seat 210 that can be electrically connected to the inverter assembly 300. The dual - motor interfaces 220 of the dual - motor wiring seat 210 are exposed and can be used for the electrical connection of the dual - motor. Then, through the combination of the control main box 100 and the dual - motor junction box 200, a dual - motor controller can be obtained.

[0048] In addition, when connecting the junction box to both the single - motor wiring side 101 and the dual - motor wiring side 102 of the control main box 100 provided in the first embodiment, the junction box can include both a single - motor junction box 120 and a dual - motor junction box 200 at the same time. The single - motor junction box 120 is detachably arranged on the single - motor wiring side 101, and the dual - motor junction box 200 is detachably arranged on the dual - motor wiring side 102. When single - motor control is required, the single - motor wiring seat 121 in the single - motor junction box 120 is electrically connected to the inverter assembly 300; when dual - motor control is required, the dual - motor wiring seat 210 in the dual - motor junction box 200 is electrically connected to the inverter assembly 300.

[0049] Specifically, the inverter assembly in the control main box 100 can be switched between single - motor control and dual - motor control. When developing a single - motor controller, only the control main box 100 and the single - motor junction box 120 need to be prepared. When developing a dual - motor controller, only the control main box 100 and the dual - motor junction box 200 need to be prepared. When developing a single - and dual - motor - switchable controller, the control main box 100, the single - motor junction box 120, and the dual - motor junction box 200 are prepared at the same time. Thus, the control main box 100 can be shared, and when upgrading from a single - motor control system to a dual - motor control system, only the dual - motor junction box 200 needs to be connected to the control main box 100, without the need to re - design and replace the entire motor controller.

[0050] In the first embodiment of the present invention, the control main box 100 is provided with openings on both the single-motor wiring side 101 and the dual-motor wiring side 102. The single-motor junction box 120 is arranged to communicate with the opening on the single-motor wiring side 101, or the dual-motor junction box 200 is arranged to communicate with the opening on the dual-motor wiring side 102. Thus, it is convenient to electrically connect the inverter assembly 300 in the control main box 100 to the terminal blocks in different junction boxes respectively, and it is also convenient for mold development and product production. Of course, the present invention is not limited to this. The control main box 100 may also be provided with a plurality of wire passing openings at intervals on the single-motor wiring side 101 and the dual-motor wiring side 102 for the inverter assembly 300 to connect to a plurality of three-phase interfaces. It should be particularly noted that when selecting one of the junction boxes to connect to the control main box 100, the corresponding opening of the other junction box may be covered with a corresponding cover plate.

[0051] See Figure 3 and Figure 4 , in the second embodiment of the present invention, there is only one junction box connection method for the control main box 100.

[0052] Specifically, an inverter installation area 130 and a wiring installation area 140 are provided in the control main box 100. The wiring installation area 140 is arranged between the inverter installation area 130 and the single-motor wiring side 101. The inverter installation area 130 can be used for installing the inverter assembly 300. As Figure 4 shown, the wiring installation area 140 may be provided with a single-motor terminal block 121. The single-motor interface 142 on the single-motor terminal block 121 is exposed on the single-motor wiring side 101 and can be used for single-motor electrical connection. That is, in the second embodiment, only by setting the single-motor terminal block 121 in the wiring installation area 140 of the control main box 100, a single-motor controller can be obtained without junction box connection. And at this time, the single-motor wiring side 101 is not the junction box side, but directly the interface side of the motor.

[0053] Figure 3 What is shown is junction box connection on the dual-motor wiring side 102 of the control main box 100 provided in the second embodiment. At this time, the junction box is the dual-motor junction box 200. The dual-motor junction box 200 is detachably arranged on the dual-motor wiring side 102. The dual-motor junction box 200 is provided with a dual-motor terminal block 210 that can be electrically connected to the inverter assembly 300. The dual-motor interface 220 of the dual-motor terminal block 210 is exposed and can be used for dual-motor electrical connection. Then, by combining the control main box 100 and the dual-motor junction box 200, a dual-motor controller can be obtained. At this time, the single-motor terminal block 121 may or may not be installed in the wiring installation area 140 of the control main box 100.

[0054] That is, in the second embodiment, the motor controller has only one junction box, namely the dual-motor junction box 200. The control main box 100 has an installation area integrated with an inverter module 300 and a single-motor connection base 141, which can itself become a single-motor controller. If it is necessary to change it to a dual-motor controller, only connect the dual-motor junction box 200 to the control main box 100, thereby reducing the development, mold manufacturing, and processing production of one junction box.

[0055] As Figure 5 shown, in the first and second embodiments of the present invention, the control main box 100 forms a first installation opening 150 that is in communication with the dual-motor junction box 200 on the dual-motor wiring side 102. The control main box 100 forms an inwardly concave first sealing groove 151 around the periphery of the first installation opening 150. The first sealing groove 151 can accommodate a first sealing gasket 160. The dual-motor junction box 200 is detachably connected to the control main box 100 through a first fastener, and the first sealing gasket 160 is pressed into the first sealing groove 151. Then, by adding the first sealing groove and the first sealing gasket, a sealing connection function can be achieved. Specifically, the first fastener includes but is not limited to a threaded component.

[0056] In addition, in the first embodiment, specifically, a second installation opening is formed on the single-motor wiring side 101 of the control main box 100. The control main box 100 forms an inwardly concave second sealing groove around the periphery of the second installation opening. The second sealing groove can accommodate a second sealing gasket. The single-motor junction box 120 is detachably connected to the control main box 100 through a second fastener, and the second sealing gasket is pressed into the second sealing groove.

[0057] In the first and second embodiments of the present invention, the control main box 100 can be set as a cuboid, and the single-motor wiring side 101 and the dual-motor wiring side 102 are respectively set as the short side and the long side of the control main box 100 in a one-to-one correspondence. Specifically, since dual-motor control requires 2 sets of UVW three-phase lines, the dual-motor interface 220 has at least six three-phase interfaces, and single-motor control only requires 1 set of UVW three-phase lines, and the single-motor interface has at least three three-phase interfaces. When the control main box 100 has a distinction between a short side and a long side, the dual-motor wiring side 102 provided with the dual-motor junction box 200 is selected as the long side, and the single-motor wiring side 101 provided with the single-motor junction box 120 is selected as the short side. On the one hand, it can play an anti-misoperation role, and on the other hand, it is convenient to meet the space requirements for arranging the two types of motor interfaces. Of course, the present invention is not limited to this, and the control main box 100 can also be set as a cube or other suitable shapes.

[0058] In the first and second embodiments of the present invention, the single-motor wiring side 101 and the dual-motor wiring side 102 are set as two adjacent sides of the control main box 100, that is, the single-motor interface and the dual-motor interface are arranged on two adjacent sides. Compared with being arranged on two opposite sides, the layout is significantly more reasonable and the wiring is simpler. At the same time, the inverter assembly 300 includes a capacitor module 310, a power module 320, and a connecting copper bar 330. The power module 320 is arranged between the capacitor module 310 and the dual-motor wiring side. The number of power modules 320 is six, and the six power modules 320 are arranged at intervals in sequence along the length direction of the dual-motor wiring side 102. At the same time, the six three-phase interfaces on the dual-motor junction box 200 can also be arranged at intervals in sequence along the length direction of the dual-motor wiring side 102. The connecting copper bar 330 can parallel two adjacent power modules 320 in the case of single-motor control to form three power module groups that are respectively connected to the three three-phase interfaces in the single-motor interface 122, or can respectively connect the power module 320 and the three-phase interfaces of the dual-motor interface 220 in the case of dual-motor control. That is, in the case of dual-motor control, six connecting copper bars 330 are required for separate wiring between the three-phase interfaces of the dual-motor interface 220 and the power module 320, while in the case of single-motor control, only three connecting copper bars 330 are required for separate wiring between the three-phase interfaces of the single-motor interface 122 and the power module group. By setting the arrangement directions of the six power modules 320 and the six three-phase interfaces in the dual-motor interface 220 to be the same, the wiring of the connecting copper bar 330 can be made clear and not crowded.

[0059] It should be particularly noted that the connecting copper bar 330 is not only used to establish the connection between the power module 320 and the three-phase interface. Specifically, the connecting copper bar 330 connects the power module 320 to the OT terminals on the wiring seat, and is also used to establish the connection between the capacitor module 310 and the power module 320, as well as the connection between the capacitor module 310 and the power supply interface. The power supply positive and negative interfaces 400 can be integrated on both the dual-motor wiring seat 210 and the single-motor wiring seat 121 to facilitate the input of the power supply.

[0060] In the first and second embodiments of the present invention, the three three-phase interfaces of the single-motor interface 122 are arranged at intervals in sequence along the length direction of the single-motor wiring side 101 from one end close to the dual-motor wiring side 102, so as to shorten the connecting copper bar 330 between the single-motor interface 122 and the power module 320. When the single-motor interface is provided on the single-motor wiring side 101, specifically, the three three-phase interfaces in the single-motor interface 122 can be arranged at intervals in sequence along the length direction of the single-motor wiring side 101, and the power supply positive and negative interfaces 400 for single-motor control are arranged at one end far from the dual-motor wiring side 102.

[0061] The motor controller provided by the present invention has the following advantages:

[0062] 1. High flexibility and compatibility

[0063] Through an innovative box combination scheme, the motor controller of the present invention forms product development of two power distribution topologies, so as to be able to adapt to the power distribution connection requirements of single-motor output and dual-motor output, improve the flexibility and compatibility of the motor control system, reduce the difficulty and cost of system integration, and provide convenient conditions for the integration and upgrade of the motor control system. When the system needs to be upgraded, only new devices or modules need to be added through the reserved interface, without re-designing and replacing the entire motor controller housing, reducing the cost and time of system upgrade, and enabling the motor control system to quickly adapt to the needs of market changes and technological development.

[0064] 2. High mold utilization rate and realization of platform development

[0065] By adjusting the power distribution connection scheme, the mechanical interfaces of single-motor output and dual-motor output are made compatible, and the same set of main housing molds can be used for both schemes, improving the utilization rate of the main housing molds and reducing the production cost of the housing. Through mold adjustment, product development of single-output / dual-output power distribution schemes is realized, reducing the marginal production cost of the motor controller and achieving lean development.

[0066] 3. Improve production efficiency and product competitiveness

[0067] In the field of transportation electrification, the motor controller of the present invention can improve flexible assembly and lean production, reduce production losses caused by equipment failures and downtime, and thus improve production efficiency. In the field of electric vehicles, its good compatibility and expandability can provide users with a more convenient and friendly user experience, enhance the market competitiveness of products, and promote the development of related industries.

[0068] In addition, the present invention also provides a preparation method for a motor controller, wherein the preparation method includes:

[0069] Providing a control main box 100 having a single-motor wiring side 101 and a dual-motor wiring side 102;

[0070] In the case of determining to prepare a single-motor controller, detachably arranging a single-motor junction box 120 on the single-motor wiring side 101 of the control main box 100;

[0071] In the case of determining to prepare a dual-motor controller, detachably arranging a dual-motor junction box 200 on the dual-motor wiring side 102 of the control main box 100.

[0072] Specifically, an inverter assembly capable of switching between single-motor control and dual-motor control is provided inside the control main box 100. Inside the single-motor junction box 120, a single-motor connection base 121 that can be electrically connected to the inverter assembly 300 is provided. The single-motor interface 122 of the single-motor connection base 121 is externally provided and can be used for single-motor electrical connection. Inside the dual-motor junction box 200, a dual-motor connection base 210 that can be electrically connected to the inverter assembly 300 is provided. The dual-motor interface 220 of the dual-motor connection base 210 is externally provided and can be used for dual-motor electrical connection. When developing a single-motor controller, only the control main box 100 and the single-motor junction box 120 need to be prepared. When developing a dual-motor controller, only the control main box 100 and the dual-motor junction box 200 need to be prepared. When developing a single / dual-motor switchable controller, the control main box 100, the single-motor junction box 120, and the dual-motor junction box 200 need to be prepared simultaneously. Thereby, the control main box 100 can be shared, achieving the purpose of reducing development costs. And when upgrading from a single-motor control system to a dual-motor control system, only the dual-motor junction box 200 needs to be connected to the control main box 100, without the need to redesign and replace the entire motor controller.

[0073] In addition, the present invention further provides a motor control system. Among them, the motor control system includes a control motor and the motor controller according to the above description. The control motor is electrically connected to the interface provided on the single-motor wiring side 101 when set as a single motor, or is electrically connected to the interface provided on the dual-motor wiring side 102 when set as a dual motor. Since the motor control system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0074] In addition, the present invention also provides a vehicle. Among them, the vehicle includes the motor control system according to the above description. Since the vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0075] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0076] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0078] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A motor controller, characterized in that, The motor controller includes: A control main box (100), in which an inverter assembly (300) may be provided, and the control main box (100) has a single-motor wiring side (101) and a dual-motor wiring side (102); A junction box, the single-motor wiring side (101) and / or the dual-motor wiring side (102) are both detachably provided with the junction box, and a wiring seat electrically connectable to the inverter assembly (300) is provided in the junction box, and the interfaces on the wiring seat are configured to be electrically connected to the motors corresponding to the respective wiring sides.

2. The motor controller according to claim 1, characterized in that The junction box is a single-motor junction box (120), the single-motor junction box (120) is detachably provided on the single-motor wiring side (101), a single-motor wiring seat (121) electrically connectable to the inverter assembly (300) is provided in the single-motor junction box (120), and the single-motor interface (122) of the single-motor wiring seat (121) is externally provided and can be used for single-motor electrical connection.

3. The motor controller according to claim 1, characterized in that, The junction box is a dual-motor junction box (200), the dual-motor junction box (200) is detachably provided on the dual-motor wiring side (102), a dual-motor wiring seat (210) electrically connectable to the inverter assembly (300) is provided in the dual-motor junction box (200), and the dual-motor interface (220) of the dual-motor wiring seat (210) is externally provided and can be used for dual-motor electrical connection.

4. The motor controller according to claim 3, characterized in that, An inverter installation area (130) and a wiring installation area (140) are provided in the control main box (100), the wiring installation area (140) is arranged between the inverter installation area (130) and the single-motor wiring side (101), the inverter installation area (130) can be used for installing the inverter assembly (300), the wiring installation area (140) may be provided with a single-motor wiring seat (121), and the single-motor interface (122) on the single-motor wiring seat (121) is externally provided on the single-motor wiring side (101) and can be used for single-motor electrical connection.

5. The motor controller according to claim 2 or 3, characterized in that, The control main box (100) is open at both the single-motor wiring side (101) and the dual-motor wiring side (102), the single-motor junction box (120) is configured to be in through-communication with the opening at the single-motor wiring side (101), or the dual-motor junction box (200) is configured to be in through-communication with the opening at the dual-motor wiring side (102).

6. The motor controller according to claim 3, wherein A first installation opening (150) in through-communication with the dual-motor junction box (200) is formed at the dual-motor wiring side (102) of the control main box (100), a first sealing groove (151) recessed inward is formed around the periphery of the first installation opening (150) of the control main box (100), the first sealing groove (151) can accommodate a first sealing gasket (160), and the dual-motor junction box (200) is detachably connected to the control main box (100) by a first fastener, and presses the first sealing gasket (160) into the first sealing groove (151).

7. The motor controller according to claim 1, characterized in that, The single-motor wiring side (101) and the double-motor wiring side (102) are provided as two adjacent sides of the control main box (100). The inverter assembly (300) includes a capacitor module (310), a power module (320), and a connecting copper bar (330). The power module (320) is disposed between the capacitor module (310) and the double-motor wiring side (102). The number of the power modules (320) is six, and the six power modules (320) are sequentially arranged at intervals along the length direction of the double-motor wiring side (102). The connecting copper bar (330) can parallelly connect two adjacent power modules (320) in the case of single-motor control to form three power module groups that are respectively connected to the three three-phase interfaces in the single-motor interface (122), or can respectively connect the power module (320) and the three-phase interfaces of the double-motor interface (220) in the case of double-motor control.

8. A preparation method of a motor controller, characterized in that, The preparation method includes: providing a control main box (100) having a single-motor wiring side (101) and a double-motor wiring side (102); when it is determined to prepare a single-motor controller, detachably disposing a single-motor junction box (120) on the single-motor wiring side (101) of the control main box (100); when it is determined to prepare a double-motor controller, detachably disposing a double-motor junction box (200) on the double-motor wiring side (102) of the control main box (100).

9. A motor control system, characterized in that, The motor control system includes a control motor and the motor controller according to any one of claims 1 to 7. The control motor is electrically connected to the interface disposed on the single-motor wiring side (101) when it is set as a single motor, or is electrically connected to the interface disposed on the double-motor wiring side (102) when it is set as a double motor.

10. A vehicle, characterized in that, The vehicle includes the motor control system according to claim 9.

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