Flat motor controller and new energy automobile

Abstract

The utility model discloses a flat type motor controller and a new energy automobile, and relates to the technical field of new energy automobiles, and the flat type motor controller comprises a box body which is provided with a first accommodating cavity and a second accommodating cavity which are arranged back to back; the three-phase output module is electrically connected with the IGBT power module through a copper bar, the IGBT power module is electrically connected with the thin-film capacitor through a copper bar, the thin-film capacitor is electrically connected with the boost relay through a copper bar, and the three-phase output module, the IGBT power module, the thin-film capacitor and the boost relay are distributed in the first accommodating cavity; the OBC + DC-DC module is arranged in the second accommodating cavity; and the cover plate comprises a first cover plate and a second cover plate which cover the first accommodating cavity and the second accommodating cavity respectively. The components are reasonably arranged in the accommodating cavity, so that the flat motor controller is designed on the premise of ensuring the functions of the motor controller, and the defect of overlarge size of the traditional motor controller is overcome by replacing a lead with a copper bar.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and particularly relates to a flat motor controller and a new energy vehicle. Background Art

[0002] As one of the core components of the power system of an electric vehicle, a new energy vehicle motor controller is mainly responsible for precisely controlling and managing the operation of the drive motor. For the motor controller of a new energy vehicle, it may include multiple independent modules such as an on-board charging system (OBC), a DC converter (DC-DC), and a battery management system (BMS). A traditional motor controller uses a single PCB board to integrate the above-mentioned various functional modules, and then installs them in a housing to form a motor controller, or directly places them in the front and rear compartments of the vehicle. There are heavy busbars and high wiring harness costs, resulting in low space utilization of the motor controller housing, a large volume of the motor controller, and difficulty in arranging it in the vehicle, resulting in low space utilization of the front and rear compartments of the vehicle, ultimately affecting the mechanical strength and safety of the entire vehicle. Summary of the Utility Model

[0003] The utility model aims to solve the drawback of its too large volume on the premise of ensuring the functions of the motor controller.

[0004] To solve the above problems, the utility model proposes a flat motor controller, including:

[0005] A box body, which has a first accommodation cavity and a second accommodation cavity arranged back to back;

[0006] A three-phase output module, an IGBT power module, a thin-film capacitor, a boost relay, and a plurality of copper bars. The three-phase output module is electrically connected to the IGBT power module through the copper bar, the IGBT power module is electrically connected to the thin-film capacitor through the copper bar, the thin-film capacitor is electrically connected to the boost relay through the copper bar, and the three-phase output module, copper bar, IGBT power module, thin-film capacitor, and boost relay are distributed in the first accommodation cavity;

[0007] An OBC + DC-DC module, which is arranged in the second accommodation cavity;

[0008] A cover plate, which includes a first cover plate and a second cover plate, and respectively covers the first accommodation cavity and the second accommodation cavity.

[0009] In one embodiment, the first accommodation cavity is provided with a plurality of accommodation areas, and the size of each accommodation area is respectively adapted to the three-phase output module, copper bar, IGBT power module, thin-film capacitor, and boost relay.

[0010] In one embodiment, the first accommodating cavity has a plurality of accommodating regions, and the size of each accommodating region is respectively adapted to the three-phase output module, the copper busbar, the IGBT power module, the thin-film capacitor, and the boost relay.

[0011] In one embodiment, the cavity wall of the first accommodating cavity is provided with a recess facing the second accommodating cavity, and the outer wall of the recess is at least partially in contact with the outer cavity wall of the second accommodating cavity. The recess is used to form an accommodating region with a relatively higher height among the plurality of accommodating regions in the first accommodating cavity.

[0012] In one embodiment, the box body forms at least one boss in the first accommodating cavity, and the recess and the boss cooperate to form an accommodating region adapted to the sizes of the three-phase output module, the IGBT power module, the thin-film capacitor, and the boost relay.

[0013] In one embodiment, the side wall of the box body is provided with a first plugging region, and the first plugging region is provided with a plurality of plugging interfaces.

[0014] In one embodiment, the first accommodating cavity is provided with an interaction region communicating with the second accommodating cavity. The first plugging region is communicated with the interaction region and is electrically connected to the OBC+DC-DC module through the interaction region.

[0015] In one embodiment, the motor controller further includes a DC high-voltage plug-in connector. The side wall of the box body is provided with a second plugging region, and the second plugging region is communicated with the boost relay and the thin-film capacitor and is used for plugging the DC high-voltage plug-in connector.

[0016] In one embodiment, the DC high-voltage plug-in connector is a 3P DC high-voltage plug-in connector, and the 3P DC high-voltage plug-in connector is provided with a fast charging function.

[0017] In one embodiment, the three-phase output module, the IGBT power module, the thin-film capacitor, the boost relay, and the OBC+DC-DC module are fixed to the box body through fixing members.

[0018] The present utility model also discloses a new energy vehicle, and the new energy vehicle includes the flat motor controller described in any one of the above.

[0019] Beneficial effects:

[0020] 1. In this embodiment, the motor controller has an innovatively designed box structure, which divides the box into a first accommodation cavity and a second accommodation cavity. All three-phase output modules, busbars, IGBT power modules, thin-film capacitors, and boost relays are arranged in a flat shape in the first accommodation cavity. The OBC+DC-DC module integrates the functions of an on-board charging system (OBC) and a DC-DC converter, and is also laid in the second accommodation cavity. Since the OBC+DC-DC module occupies a large space and is not conducive to layout with other components, it is arranged in the second accommodation cavity, which is beneficial to improving space utilization. By designing an accommodation area in the first accommodation cavity to match the sizes of various components, a flat design is achieved, strengthening the structure of this motor controller, making it more convenient for vehicle installation, and reducing the occupied volume of the carriage space.

[0021] 2. In this embodiment, busbars are used instead of wires. Busbars have higher mechanical strength and stability compared to thin wires. The larger cross-sectional area and thickness of busbars can provide better structural support, reducing the risk of loosening or breaking caused by vibration, shock, or mechanical stress, and enhancing the structural strength and durability of the motor controller. In contrast, traditional wires may require more space for accommodation and wiring. By using busbars, the internal space can be effectively utilized, and the overall structure of the motor controller can be optimized.

[0022] 3. The first plug-in area and the second plug-in area are provided on the side wall of the box to ensure effective communication and power transmission between modules. In terms of the overall structure, the height of the motor controller is reduced, and the plug-in areas are placed on the side, reducing the volume of the motor controller and improving the utilization rate of the lateral space, which is beneficial to the reasonable layout inside new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is an exploded view of the flat motor controller in the present invention;

[0025] Figure 2 It is an assembled view of the flat motor controller in the present invention;

[0026] Figure 3 It is another perspective of the assembled view of the flat motor controller in the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028]

[0029]

[0030] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating 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 addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0034] The motor controller of a new energy vehicle, as one of the core components of the electric vehicle power system, is mainly responsible for precisely controlling and managing the operation of the drive motor. For the motor controller of a new energy vehicle, it may include multiple independent modules such as an on-board charging system (OBC), a DC converter (DC-DC), and a battery management system (BMS). The traditional motor controller uses a single PCB board to integrate the above-mentioned various functional modules and then installs them in a housing to form a motor controller, which has a bulky busbar and high wiring harness cost, resulting in low space utilization rate of the motor controller housing, large volume of the motor controller, and difficulty in arranging it in the vehicle, ultimately affecting the mechanical strength and safety of the whole vehicle.

[0035] To solve the above problems, the present utility model proposes a flat motor controller 1, comprising: a box body 100, a three-phase output module 10, a plurality of copper bars 20, an IGBT power module 30, a thin-film capacitor 40, a boost relay 50, an OBC+DC-DC module 70, and a cover plate 200.

[0036] The box body 100 has a first accommodation cavity 110 and a second accommodation cavity 120 arranged back to back. The three-phase output module 10, the copper bars 20, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50 are distributed in the first accommodation cavity 110; the three-phase output module 10 is electrically connected to the IGBT power module 30 through the copper bars 20, and the upper copper bars 20 thereof will contact and fix with the output terminals of the power module to form an electrical connection to supply power to the motor; the IGBT power module 30 is electrically connected to the thin-film capacitor 40, and the input terminal copper bars thereof will contact and fix with the output terminals of the thin-film capacitor 40 to form an electrical connection; the thin-film capacitor 40 is electrically connected to the boost relay 50 through the copper bars 20. The OBC module and the DC-DC module are arranged in the second accommodation cavity 120. The cover plate 200 includes a first cover plate 210 and a second cover plate 220, which respectively cover the first accommodation cavity 110 and the second accommodation cavity 120.

[0037] In this embodiment, copper bars 20 and terminal copper bars are used instead of wires. The copper bars 20 have higher mechanical strength and stability compared to thin wires. The larger cross-sectional area and thickness of the copper bars 20 can provide better structural support, reducing the risk of loosening or breaking caused by vibration, shock, or mechanical stress, and enhancing the structural strength and durability of the motor controller 1. In contrast, traditional wires may require more space for accommodation and wiring. By using the copper bars 20, the internal space can be effectively utilized, and the overall structure of the motor controller 1 can be optimized.

[0038] The box body 100 is made of a material with strong heat dissipation ability, which can be aluminum or copper. It should be noted that aluminum has poor corrosion resistance and requires additional coatings or treatments for protection. Similarly, the material of the cover plate 200 can be the same as that of the box body 100 and has strong heat dissipation ability.

[0039] The housing 100 is divided into a first accommodation cavity 110 and a second accommodation cavity 120. The three-phase output module 10, the copper busbar 20, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50 are arranged in a tiled manner in the first accommodation cavity 110. The OBC module and the DC-DC module are integrated into an OBC+DC-DC module 70. The OBC+DC-DC module 70 is a flat cuboid and is arranged in the second accommodation cavity 120, which can save space, reduce the number of external connection wires and interfaces, reduce space occupation, make the entire motor controller 1 present a flat shape, and effectively reduce the overall thickness and volume of the motor controller. Therefore, the motor controller 1 in this embodiment is overall in a flat shape, which is convenient for vehicle installation. After being installed in a new energy vehicle, it can save space for the vehicle, provide more installation space for other components, and improve the design flexibility and layout effect of the whole vehicle.

[0040] In addition, the three-phase output module 10, the copper busbar 20, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50 in this embodiment have a reasonable connection method and are reasonably arranged according to their functions. The components that need to be externally connected with plug-in connectors (the three-phase output module 10, the thin-film capacitor 40, and the boost relay 50) are arranged at the edge of the housing 100, which is convenient for external plug-in connectors. The components that do not need external plug-ins are arranged in the middle of the first accommodation cavity 110. By placing the components that need external plug-in connectors at the edge of the housing, they can be directly connected to external devices externally, avoiding complex wiring of internal wiring harnesses. In this way, the components that do not need external plug-ins can be placed more centrally in the middle of the first accommodation cavity, thereby optimizing the internal layout. This layout method reduces the number and length of the internal wiring harnesses, makes the connection of internal parts more concise, reduces the number of parts inside the motor controller, and further reduces the overall volume.

[0041] In this embodiment, the OBC+DC-DC module 70 is separately placed in the second accommodation cavity 120 because it occupies a relatively large volume. Placing it separately in the second accommodation cavity 120 can release the space of the first accommodation cavity 110, and other functional modules and components can be more flexibly arranged in the first accommodation cavity 110, which helps to improve the flexibility of the overall layout and the space utilization rate.

[0042] Therefore, through the flat shape and reasonable arrangement of components in this embodiment, arranged in a series, the space utilization rate of the housing 100 is increased, the structure inside the motor controller 1 is simple and compact, and at the same time, the performance of this motor controller 1 and the structural stability after the overall vehicle assembly are ensured.

[0043] In this embodiment, a plurality of accommodation areas 111 are provided in the first accommodation cavity 110. The size (length, width, and height) of each accommodation area 111 is respectively adapted to the size (length, width, and height) of the three-phase output module 10, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50, so as to perfectly place the above components in the accommodation area 111 and improve the space utilization rate.

[0044] It should be noted that in this embodiment, the internal space of the first accommodation cavity 110 is finely divided according to the volume differences of the three-phase output module 10, the copper busbar 20, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50. Each component is designed with a reasonable installation space to help achieve a compact layout. Among them, the size of the first accommodation cavity 110 is larger than that of the second accommodation cavity 120. The height of the position where the first accommodation cavity 110 abuts against the second accommodation cavity 120 is relatively low. In order to save space, a control board 60 with a relatively low thickness can be arranged at this position, and the three-phase output module 10, the copper busbar 20, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50 can be arranged in other areas. Therefore, the size of each accommodation area 111 can correspond to a corresponding component, making the internal arrangement more reasonable and the wiring clearer, and improving the space utilization rate.

[0045] It should be noted that if other relatively high components are arranged at the position where the first accommodation cavity 110 abuts against the second accommodation cavity 120, the thickness of the entire motor controller 1 will increase, and the space utilization rate of other areas will also decrease.

[0046] In this embodiment, the cavity wall of the first accommodation cavity 110 is provided with a recess 112 facing the second accommodation cavity 120. The outer wall 1121 of the recess is at least partially in contact with the outer cavity wall 121 of the second accommodation cavity. The recess 112 is used to form an accommodation area 111 with a relatively high height among the plurality of accommodation areas 111 in the first accommodation cavity 110.

[0047] It can be understood that since the first accommodation cavity 110 is larger than the second accommodation cavity 120, and since the three-phase output module 10, the IGBT power module 30, the thin-film capacitor 40, and the boost relay 50 have different heights, for components with a relatively high height, a relatively high accommodation area 111 needs to be set to match. Therefore, in this embodiment, a recess 112 is provided. The recess 112 faces the second accommodation area 111. When adapting to higher components, the non-overlapping partial space of the first accommodation cavity 110 and the second accommodation cavity 120 is reasonably utilized, improving the vertical space utilization rate. It is avoided that due to the excessive height of one component, the height of the cavity wall of the first accommodation cavity 110 of the box body 100 needs to be extended outward, resulting in an increase in the overall size and the volume of the body.

[0048] In the above embodiments, the design of the recess can control the thickness of the entire motor controller 1 to be not much different from the thickness of the OBC+DC-DC module 70. The thickness of the entire motor controller is: the thickness of the OBC+DC-DC module 70 plus the inner layer thickness of the box body 100 and the thickness of the control board 60 arranged in the middle. After assembly, a flattened motor controller 1 is presented.

[0049] In this embodiment, at least one boss is formed in the first accommodation cavity 110 of the box body 100, and the recess 112 and the boss cooperate to form an accommodation area 111 adapted to the sizes of the three-phase output module 10, IGBT power module 30, thin film capacitor 40, and boost relay 50.

[0050] The design of the boss forms an accommodation area 111 adapted to the sizes of each functional module and component with different heights. This means that each module and component can find a suitable space in the corresponding accommodation area 111, ensuring that their installation and wiring are more compact and effective, and improving the vertical space utilization rate of the entire motor controller 1. Moreover, the presence of the boss can form a certain space isolation between the functional modules and components, which helps to reduce the mutual interference and interference between the modules, and improve the electromagnetic compatibility and stability of the overall motor controller 1.

[0051] In this embodiment, a first plug-in area 130 is provided on the side wall of the box body 100, and the first plug-in area 130 is provided with a plurality of plug-in ports. The plurality of plug-in ports in the first plug-in area 130 are used for plugging in power plug-in components, such as plugging in a slow charging plug-in 131 and a DC+ plug-in 132.

[0052] Compared with placing the plug-in area at the top or bottom, it will increase the thickness of the box body 100, and it is also difficult to arrange the subsequent vehicle installation. In this embodiment, setting the plug-in area on the side wall can better utilize the lateral space, making the entire motor controller 1 more compact in the vertical direction. This helps to solve the problem of large volume and improve the space utilization efficiency.

[0053] In this embodiment, an interaction area 150 communicating with the second accommodation cavity 120 is provided in the first accommodation cavity 110. The first plug-in area 130 communicates with the interaction area 150 and is electrically connected to the OBC+DC-DC module 70 through the interaction area 150.

[0054] It can be understood that through the setting of the interaction area 150, an electrical connection can be established between the first plug-in area 130 and the OBC+DC-DC module 70. This connectivity enables wires, cables, or other electrical connectors to more conveniently pass through the interaction area 150 from the first plug-in area 130 and directly connect to the OBC+DC-DC module 70 inside the cavity. In this way, the wiring of the electrical connection is simpler, the overall layout of the motor controller 1 is more compact, reducing the crossing and winding of connection lines and optimizing the space utilization efficiency.

[0055] Therefore, the existence of the interaction area 150 increases the feasibility of dividing the box body 100 into upper and lower cavities. The establishment of the interaction area not only provides a channel for electrical connection but also forms a space-sharing mechanism between the first accommodation cavity 110 and the second accommodation cavity 120. Such a design can more flexibly utilize the space between the two accommodation cavities, and the layout positions of various components can be adjusted according to needs, thus better adapting to different design requirements.

[0056] In this embodiment, the slow charge connector 131 is installed in the first plug-in area 130. Its two wire harnesses for the neutral line and the live line are fixed to the OBC+DC-DC module 70 by bolts. When it works, this interface provides 220V alternating current to charge the battery pack through the OBC+DC-DC module 70. The DC+ connector 132 is installed in the first plug-in area 130, and its copper bar 20 is connected to the OBC+DC-DC module 70 to provide 12V low-voltage power for the low-voltage electrical equipment of the whole vehicle.

[0057] In this embodiment, the motor controller 1 further includes a DC high-voltage connector. A second plug-in area 140 is provided on the side wall of the box body 100. The second plug-in area 140 is communicated with the boost relay 50 and the thin film capacitor 40 for plugging in the DC high-voltage connector. One end of the boost relay 50 is electrically connected to the DC high-voltage connector 141 through the copper bar 20, and the other end is electrically connected to the thin film capacitor 40. At the same time, the thin film capacitor 40 is electrically connected to the DC high-voltage connector 141 through the copper bar 20.

[0058] It should be noted that after the three-phase output module 10, the copper bar 20, the IGBT power module 30, the thin film capacitor 40, and the boost relay 50 are connected to each other, the boost relay 50 and the thin film capacitor 40 among them also need to be connected to the above-mentioned DC high-voltage connector. And the second plug-in area 140 for the DC high-voltage connector is provided on the side wall of the box body 100. Therefore, the boost relay 50 and the thin film capacitor 40 need to be arranged at the edge of the first accommodation cavity 110 and in the second plug-in area 140. The DC high-voltage connector can be plugged in the area of the second plug-in area 140 on the side wall, thus saving the space inside the box body 100. In this way, more space can be left for other functional modules or components, optimizing the overall layout of the motor controller 1.

[0059] It is understandable that the first plug-in area 130 is used to realize the electrical connection of the devices in the second accommodation cavity 120, and the second plug-in area 140 is used to realize the electrical connection of the devices in the first accommodation cavity 110. Dividing the plug-in area according to the position of the functional module can make the wiring in each plug-in area more orderly and concise, reduce the complexity and chaos of the wiring, and thus reduce the risk of failure.

[0060] In this embodiment, the DC high-voltage plug-in is a 3P DC high-voltage plug-in 141, and the 3P DC high-voltage plug-in 141 is provided with a fast charging function.

[0061] It should be noted that the traditional DC high-voltage plug-in is a component used to connect a high-voltage DC power supply, with various functions, including power input and output, signal transmission, electrical protection, noise reduction and shielding, and airtight and waterproof and dustproof, etc. In this embodiment, on the basis of these functions, the fast charging function is also integrated into this DC high-voltage plug-in 141, and the fast charging function can be realized while the plug-in is connected to the motor controller 1 or other devices. In this way, the user does not need additional charging equipment or cables, and only needs to use the 3P DC high-voltage plug-in 141 that supports fast charging to charge conveniently and quickly, improving the user's charging experience and convenience, and also reducing the components used in this motor controller 1 and reducing the volume.

[0062] In this embodiment, the three-phase output module 10, the IGBT power module 30, the thin-film capacitor 40, the boost relay 50, and the OBC+DC-DC module 70 are fixed to the box body 100 through fixing parts.

[0063] It should be noted that the fixing parts can be bolts. The IGBT power module 30, the three-phase output module 10, the control board 60, the boost relay 50, the thin-film capacitor 40, and the OBC+DC-DC module 70 are all fixed to the box body 100 with bolts, increasing the structural strength of the motor controller 1 and avoiding excessive damage caused by the vibration structure.

[0064] The present utility model also discloses a new energy vehicle, which includes a motor controller. The specific structure of the motor controller refers to the above embodiments. Since this motor controller adopts all the technical solutions of the above all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0065] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A flat motor controller, characterized in that, The motor controller includes: a box body, the box body having a first accommodating cavity and a second accommodating cavity arranged back to back; a three-phase output module, an IGBT power module, a thin film capacitor, a boost relay, and a plurality of copper bars, the three-phase output module being electrically connected to the IGBT power module through the copper bars, the IGBT power module being electrically connected to the thin film capacitor through the copper bars, the thin film capacitor being electrically connected to the boost relay through the copper bars, and the three-phase output module, the copper bars, the IGBT power module, the thin film capacitor, and the boost relay being distributed in the first accommodating cavity; an OBC+DC-DC module, the OBC+DC-DC module being arranged in the second accommodating cavity; a cover plate, the cover plate including a first cover plate and a second cover plate, respectively covering the first accommodating cavity and the second accommodating cavity; the first accommodating cavity is provided with a plurality of accommodating areas, and the size of each accommodating area is respectively adapted to the three-phase output module, the IGBT power module, the thin film capacitor, and the boost relay.

2. The flat motor controller according to claim 1, characterized in that The cavity wall of the first accommodating cavity is provided with a recess facing the second accommodating cavity, and the outer wall of the recess is at least partially in contact with the outer cavity wall of the second accommodating cavity, and the recess is used to form an accommodating area with a relatively higher height among the plurality of accommodating areas in the first accommodating cavity.

3. The flat motor controller according to claim 2, wherein The box body forms at least one boss in the first accommodating cavity, and the recess and the boss cooperate to form an accommodating area adapted to the sizes of the three-phase output module, the copper bars, the IGBT power module, the thin film capacitor, and the boost relay.

4. The flat motor controller according to claim 1, wherein The side wall of the box body is provided with a first plug-in area, and the first plug-in area is provided with a plurality of plug-in interfaces.

5. The flat motor controller according to claim 4, wherein, The first accommodating cavity is provided with an interaction area communicating with the second accommodating cavity, the first plug-in area is communicated with the interaction area, and is electrically connected to the OBC+DC-DC module through the interaction area.

6. The flat motor controller according to claim 1, wherein The motor controller further includes a DC high-voltage plug-in, and the side wall of the box body is provided with a second plug-in area, the second plug-in area being communicated with the boost relay and the thin film capacitor for plugging the DC high-voltage plug-in.

7. The flat motor controller according to claim 6, characterized in that, The DC high-voltage plug-in is a 3P DC high-voltage plug-in, and the 3P DC high-voltage plug-in is provided with a fast charging function.

8. The flat motor controller according to any one of claims 1 to 7, characterized in that, The three-phase output module, the IGBT power module, the thin film capacitor, the boost relay, and the OBC+DC-DC module are fixed to the box body through fixing members.

9. A new energy vehicle, characterized in that, The new energy vehicle includes the flat motor controller according to any one of claims 1 to 8.

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