Electric drive controller, electric drive system and vehicle

Abstract

This application provides an electric drive controller, an electric drive system, and a vehicle. The electric drive controller includes a controller box and electronic components installed within the controller box. The controller box includes a closed cavity and an insertion hole that communicate with each other, and a cover that covers the closed cavity. The closed cavity is located within the controller box and is isolated from other spaces within the controller box to accommodate components that require connection, disconnection, or replacement, without affecting the electronic components installed elsewhere within the controller box. The electronic components include a high-voltage busbar-piercing connector, and the high-voltage busbar-piercing connector has a port end that is accommodated within the closed cavity and the insertion hole, respectively. In this way, when the busbar is connected or disconnected, the high-voltage busbar-piercing connector is accommodated within the closed cavity, isolating it from the space in which the other electronic components are installed within the controller box, thereby preventing water vapor or other foreign matter from entering the controller box and affecting the normal operation of the other electronic components.

Description

[Technical Field]

[0001] The present application relates to the field of automotive components, and more particularly to electric drive controllers, electric drive systems, and automobiles including such electric drive systems. [Background technology]

[0002] The electric drive controller is one of the important components of an electric vehicle. It converts the electrical energy stored in the power battery into the electrical energy required to drive the motor in response to commands from the shift position, accelerator, brake, etc., and controls the driving conditions of the electric vehicle, such as starting operation, forward / reverse speed, and hill-climbing ability, or assists the braking of the electric vehicle, storing some of the braking energy in the power battery. The electric drive controller includes a high-voltage busbar connector, and the high-voltage busbar connector is connected to other vehicle components, such as the battery pack, using a DC busbar connector plug. Many DC busbar connector plugs use a drilling connection. However, busbars installed using this method have poor sealing isolation at their installation locations. Furthermore, when inspecting and maintaining the electric drive controller, the high-voltage busbar connector must generally be inspected separately. Therefore, when installing or replacing a high-voltage busbar connector during maintenance and inspection, water vapor or dust from inside or outside the electric drive controller may enter other parts of the electric drive controller or other vehicle components connected to the electric drive controller through the drilling holes in the high-voltage busbar connector, causing malfunctions in the electric drive controller or other electronic components of the vehicle and affecting their use. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application provides an electric drive controller, an electric drive system, and a vehicle that solve the problem in the related art that the positive and negative pole mounting cavities of the busbar drilling connector of the electric drive controller penetrate the internal cavity of the controller, resulting in poor isolation of the mounting position. [Means for solving the problem]

[0004] In order to solve the above problem, one aspect of the present application provides an electric drive controller including a controller box and electronic components provided in the controller box, wherein the controller box includes one closed cavity, an insertion hole, and a cover body covering the closed cavity, the insertion hole is connected to the closed cavity, the electronic components include a high-voltage busbar drilling connector, the high-voltage busbar drilling connector includes a port end, the high-voltage busbar drilling connector is accommodated in the closed cavity, and the port end is accommodated in the insertion hole.

[0005] Specifically, the controller box further includes an accommodating cavity, a connection hole, and an isolation plate, the connection hole connecting the accommodating cavity and the closed cavity, the isolation plate closing the connection hole, and a wire-through hole provided in the isolation plate, the electronic component further includes a filter assembly and a circuit board, the circuit board is provided in the accommodating cavity, the filter assembly is accommodated in the closed cavity and connected to the high-voltage busbar piercing connector, the filter assembly includes a connection end, the connection end is mounted in the wire-through hole and connected to the circuit board.

[0006] Specifically, an isolation seal ring is further provided within the connection hole, the isolation plate is mounted within the connection hole, the isolation seal ring is fitted onto the peripheral edge of the isolation plate, and the isolation seal ring abuts against the hole wall of the connection hole and the peripheral edge of the isolation plate.

[0007] Specifically, the controller box has a stopper stage formed at a connection point between the connection hole and the closed cavity, and the separator is fixed to the stopper stage to cover the connection hole.

[0008] Specifically, the controller box also has a stopper stage formed at the connection point between the connection hole and the accommodating cavity, and an isolation seal ring is further provided within the connection hole, the isolation plate including a first sub-plate and a second sub-plate, the first sub-plate and the second sub-plate being fixed to the two stopper stages respectively, and the isolation seal ring abutting between the first sub-plate and the second sub-plate.

[0009] Specifically, the filter assembly further includes a housing, the connecting end is formed by an extension of the housing, and the separator is a fixed flange protruding from the housing.

[0010] Specifically, the circuit board has a control module circuit region and a driving module circuit region, and further has fixing holes on the periphery of the circuit board, through which the circuit board is fixed in the receiving cavity.

[0011] Specifically, the controller box includes a box body and a box cover covering the box body, the closing cavity and the accommodating cavity are both provided within the box body, the box cover has a removal opening at a position corresponding to the closing cavity, the cover body covers the removal opening, the circuit board further has a port circuit area and a conductive frame surrounding the port circuit area, the box cover further has an isolation cavity at a position corresponding to the accommodating cavity, the port circuit area is located within the isolation cavity, and the cavity end surface of the isolation cavity is pressed against the conductive frame.

[0012] Specifically, a conductive rubber ring is further provided between the isolation cavity and the conductive frame, and the conductive rubber ring is abutted against the cavity end surfaces of the conductive frame and the isolation cavity, the conductive frame and the conductive rubber ring are all connected to form a closed frame structure, and the conductive frame, the conductive rubber ring and the isolation cavity all have the same cavity cross-sectional shape along the depth direction perpendicular to the isolation cavity.

[0013] Specifically, the electric drive controller further includes an insertion member and a fixing member, the insertion member including a welding pin, the welding pin being welded and fixed to the circuit board and connected to the port circuit area, the fixing member passing through the fixing hole along a first direction to fix the circuit board within the box body, the insertion member further including an insertion end opposite the welding pin, and at least a portion of the insertion end extending to be exposed from the box body.

[0014] Specifically, the controller box includes a box body and a box cover that covers the box body, a removal opening is provided at a location of the box cover that corresponds to the closed cavity, the cover body covers the removal opening, a boss that fits the removal opening is formed on the cover body in a protruding manner, the boss is accommodated in the removal opening, a seal ring is fitted to the outer wall of the boss, and the seal ring is located between the boss and the inner wall of the removal opening.

[0015] Another aspect of the present application provides an electric drive system, the electric drive system including a drive motor and the electric drive controller described above, the drive motor connected to the electric drive controller.

[0016] Specifically, the electric drive controller includes a three-phase copper bus bar provided in the controller box, the three-phase copper bus bar including a connection end exposed from the controller box, the drive motor including a motor housing and a motor terminal exposed from the motor housing, the controller box and the motor housing supporting each other, and the connection end connected to the motor terminal, and a blocking member provided in a gap path between the controller box and the motor housing along a direction extending from a connection point between the connection end and the motor terminal to the outside of the electric drive system.

[0017] Specifically, the controller box and the motor housing both include support surfaces, the support surfaces support and abut each other, the connection end extends from the support surface of the controller box so as to be exposed to the controller box, a protrusion is provided on the support surface of the controller box, a groove is provided on the support surface of the motor housing, and the protrusion is accommodated in the groove.

[0018] Yet another aspect of the present application provides a vehicle, the vehicle including a battery pack, a high voltage bus, and the electric drive controller described above, the high voltage bus being connected to the battery pack and the port end. [Effects of the Invention]

[0019] The present application has the following advantageous effects: The electric drive controller according to the present application includes a controller box and electronic components installed within the controller box; the controller box includes a closed cavity and an insertion hole that communicate with each other, and a cover that covers the closed cavity; the closed cavity is located within the controller box and isolated from other parts of the controller box, allowing components that require detachment or replacement to be accommodated without affecting the electronic components installed in other parts of the controller box; the electronic components include a high-voltage busbar-piercing connector, and the high-voltage busbar-piercing connector has a port end for connecting to other electronic components; when the busbar is detached for installation at a final assembly plant or to replace the electric drive controller after sales, water vapor or other foreign matter can be prevented from entering the controller box and affecting the normal operation of the other electronic components; the high-voltage busbar-piercing connector is accommodated within the closed cavity, and the port end is accommodated within the insertion hole. In this way, when the busbar is attached or detached, the high-voltage busbar piercing connector is housed in a closed cavity, which isolates it from the space in which other electronic components are installed in the controller box, thereby preventing water vapor or other foreign matter from entering the controller box and affecting the normal operation of other electronic components. [Brief explanation of the drawings]

[0020] In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without any creative work. [Figure 1] 1 is an exploded structural schematic diagram of one embodiment of an electric drive controller according to the present application. [Figure 2] 2 is a schematic exploded structural view of the electric drive controller in FIG. 1 at a different viewing angle. [Figure 3] FIG. 2 is a partially enlarged schematic view of a partial structure in FIG. [Figure 4]FIG. 4 is a schematic plan view of the structure of FIG. 3. [Figure 5] 1 is a structural schematic diagram of an embodiment of an electric drive system including a drive motor and an electric drive controller according to the present application; [Figure 6] FIG. 6 is a cross-sectional view of the electric drive system in FIG. 5 taken along the line BB. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, with reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, and it is obvious that the described embodiments are only some of the embodiments of the present application, not all of the embodiments, and all other embodiments that can be obtained by those skilled in the art based on the embodiments of the present application without any creative work are all within the scope of protection of the present application.

[0022] In the description of the embodiments of the present application, unless otherwise clearly specified or limited, the terms "connection" and "connection" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection via an intermediate medium. Those skilled in the art will be able to understand the specific meanings of the above terms in the embodiments of the present application according to specific circumstances.

[0023] In the embodiments of the present application, unless otherwise clearly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate medium. Furthermore, a first feature being "above," "above," and "on" a second feature may mean that the first feature is directly above or diagonally above the second feature, or may simply indicate that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or may simply indicate that the horizontal height of the first feature is lower than that of the second feature.

[0024] 1 and 2, Fig. 1 is an exploded structural schematic diagram of one embodiment of an electric drive controller according to the present application. Fig. 2 is an exploded structural schematic diagram of the electric drive controller in Fig. 1 at a different viewing angle. One aspect of the present application provides an electric drive controller. In one specific embodiment, the electric drive controller includes a controller box 1 and electronic components provided in the controller box 1. The controller box 1 includes a closed cavity 11 and an insertion hole 12 that communicate with each other, and a cover body 13 that covers the closed cavity 11. The closed cavity 11 is located within the controller box 1 and is isolated from other parts within the controller box 1. The electronic components include a high-voltage busbar-piercing connector 2, and the high-voltage busbar-piercing connector 2 includes a port end 21 for connecting to other electronic components. When the busbar is attached or detached to install it at a final assembly factory or to replace the electric drive controller after sale, water vapor or other foreign matter can be prevented from entering the controller box 1 and affecting the normal operation of other electronic components by receiving the high-voltage busbar piercing connector 2 in the closed cavity 11 and receiving the port end 21 in the insertion hole 12. In this way, when the busbar is attached or detached, the high-voltage busbar piercing connector 2 is received in the closed cavity 11, and is therefore isolated from the space in which the other electronic components in the controller box 1 are installed, thereby preventing water vapor or other foreign matter from entering the controller box 1 and affecting the normal operation of other electronic components.

[0025] It will be understood that other electronic components that require detachable connection or replacement of the electric drive controller, like the high voltage busbar drilling connector 2, may be provided in a single sealed closed cavity 11, so that detachable connection or replacement will not affect other electronic components provided in the controller box 1.

[0026] Specifically, the controller box 1 further includes a receiving cavity 14, a connection hole 15, and a separator 16. The connection hole 15 connects the receiving cavity 14 and the closed cavity 11, and the separator 16 closes the connection hole 15. The separator 16 is provided with a wire-through hole (not shown) so that the electronic components provided in the receiving cavity 14 can communicate with the electronic components provided in the closed cavity 11. The electronic components further include a filter assembly 3 and a circuit board 4. The circuit board 4 is provided in the receiving cavity 14. The filter assembly 3 is used to reduce signals of other frequencies according to the frequency of the electric drive controller and eliminate the effects of noise. The filter assembly 3 is further received in the closed cavity 11 and connected to the high-voltage busbar perforated connector 2. To facilitate connection of the filter assembly with other assemblies, the filter assembly 3 includes a connection end 31, which is mounted in the wire-through hole and connected to the circuit board 4.

[0027] More specifically, in one embodiment, an isolation seal ring 5b is further provided in the connecting hole 15 when the separator 16 closes the connecting hole 15 to provide a tighter closure, the separator 16 is installed in the connecting hole 15, the isolation seal ring 5b is fitted onto the peripheral edge of the separator 16, and the isolation seal ring 5b abuts against the hole wall of the connecting hole 15 and the peripheral edge of the separator 16. It will be understood that the isolation seal ring 5b has a certain elasticity and can withstand a certain amount of compression, and when assembled, the isolation seal ring 5b is provided on the peripheral edge of the separator 16, and the separator 16 is installed in the connecting hole 15, at which time the isolation seal ring 5b abuts against the hole wall of the connecting hole 15 and the peripheral edge of the separator 16, allowing the separator 16 to close the connecting hole 15 more tightly.

[0028] In order to firmly fix the separator 16 in the controller box 1, the controller box 1 is formed with a stopper stage 17 at the connection point between the connection hole 15 and the closed cavity 11, and when assembled, the separator 16 is fixed on the stopper stage 17 and covers the connection hole 15.

[0029] Specifically, in one embodiment, the controller box 1 also has a stopper stage 17 formed at the connection point between the connection hole 15 and the receiving cavity 14, and the isolation plate 16 includes a first sub-plate 161 and a second sub-plate 162, which are respectively fixed to the two stopper stages. That is, a stopper stage 17 is formed at each connection point between the connection hole 15 and the closing cavity 11 and the receiving cavity 14, and the two stopper stages 17 are connected to each other. When assembled, the first sub-plate 161 and the second sub-plate 162 are respectively attached to the stopper stages 17, and the isolation seal ring 5b is located between the first sub-plate 161 and the second sub-plate 162 and abuts against the first sub-plate 161 and the second sub-plate 162, thereby improving the sealing of the isolation plate 16 with respect to the closing cavity 11.

[0030] In one embodiment, the filter assembly 3 further includes a housing 32, and the connecting end 31 is formed by extending the housing 32; that is, the connecting end 31 is connected to the housing 32 and is a part of the housing 32. The separator 16 is a fixed flange protruding from the housing 32 so as to connect the filter assembly 3 to a corresponding flange of another component. That is, it will be understood that the separator 16 is connected to the housing 32 and is formed by protruding from the housing 32. Of course, in some embodiments, the separator 16 may be a structure designed separately from the housing 32.

[0031] 1 , more specifically, the controller box 1 includes a box body 18 and a box cover 19 that covers the box body 18. The closed cavity 11 and the receiving cavity 14 are both provided within the box body 18, and the closed cavity 11 and the receiving cavity 14 are enclosed and isolated by a separator 16. To facilitate the removal and installation of electronic components in the closed cavity 11 for repair or replacement, the box cover 19 is provided with a removal opening 191 at a position corresponding to the closed cavity 11, and the cover body 13 covers the removal opening 191 to close the closed cavity 11 and prevent external foreign objects from entering the closed cavity 11 and damaging the electronic components in the closed cavity 11. That is, the cover body 13 is located on the box wall of the box cover 19 and is connected to the box cover 19 when covering the removal opening 191.

[0032] Furthermore, the cover body 13 is formed with a protruding boss 131 that fits into the removal opening 191. During assembly, the boss 131 is received in the removal opening 191, and the removal opening 191 and the boss 131 fit together to attach the cover body 13 to the box cover 19. In order to attach the cover body 13 more firmly to the box cover 19, a seal ring 5c is fitted on the outer wall of the boss 131. This seal ring 5c has a certain elasticity and can withstand a certain amount of compression, and by attaching this seal ring 5c between the boss 131 and the inner wall of the removal opening 191, the gap between the outer wall of the boss 131 and the inner wall of the removal opening 191 can be filled.

[0033] 3 and 4, Fig. 3 is a partially enlarged schematic view of a partial structure in Fig. 1, and Fig. 4 is a schematic plan view of the structure in Fig. 3. In one embodiment, a control module circuit area 41 and a drive module circuit area 42 are provided on the circuit board 4, and the control module circuit area 41 and the drive module circuit area 42 are used to realize the control and drive functions of the electric drive controller, respectively. In addition, the circuit board 4 is further provided with fixing holes 45 located on the periphery of the circuit board 4, and the circuit board 4 is fixed in the receiving cavity 14 through the fixing holes 45. The fixing holes 45 can be fitted with bolts or fixing blocks, etc. to attach the circuit board to the controller box 1.

[0034] The circuit board 4 further includes a port circuit area 43 and a conductive frame 44 surrounding the port circuit area 43. An isolation cavity 192 is further provided at a location corresponding to the receiving cavity 14 of the box cover 19. The port circuit area 43 is located within the isolation cavity 192, and the end face of the isolation cavity 192 is pressed against the conductive frame 44. After the assembly of the electric drive controller is completed, that is, after the box body 18 and the box cover 19 are fixedly connected, the port circuit area 43 is located within the isolation cavity 192, and the end face of the isolation cavity 192 is pressed against the conductive frame 44. The end face of the isolation cavity 192 is pressed against the conductive frame 44, thereby achieving a conductive connection between the controller box 1 and the circuit board 4 and realizing a grounding function. At this time, the port circuit area 43 is located within the isolation cavity 192, which can block the transmission of voltage signals and avoid interference with the conduction of the port circuit area 43 where the control module circuit area 41 and the drive module circuit area 42 abut, ensuring that signals are not interfered with and allowing the electric drive controller to communicate normally with the finished vehicle. The box cover 19 is provided with the isolation cavity 192, the port circuit area 43 is located within the isolation cavity 192 and is fastened and sealed with the conductive frame 44 by the box cover 19, and the isolation cavity 192 can also form a closed-off area, thereby realizing the blocking of radiation interference to the outside of the space.

[0035] A conductive rubber ring 5a is further provided between the isolation cavity 192 and the conductive frame 44, and the conductive rubber ring 5a abuts against the end surfaces of the conductive frame 44 and the isolation cavity 192. When the box cover 19 is fixed to the box body 18, the conductive frame 44 on the circuit board 4 and the conductive rubber ring 5a come into contact with each other and abut against each other. The conductive rubber ring 5a has a certain elasticity and can withstand a certain amount of compression, ensuring that the box cover 19 and the conductive frame 44 are tightly connected without gaps, improving the reliability of electrical connection. The circuit board 4 and the box cover 19 are connected by the conductive frame 44 and the conductive rubber ring 5a, electrically connecting the controller box 1 and the circuit board 4 and providing a grounding function, thereby reducing the risk of electric shock in the event of a current leak. The conductive rubber ring 5a is a commercially available frame-shaped member made of conductive rubber. Furthermore, to achieve a higher sealing effect and conductivity and facilitate processing and manufacturing, the conductive frame 44 and the conductive rubber ring 5a are all connected to form a closed frame structure, thereby avoiding the possibility of current being blocked or other circuit boards 4 being damaged due to the presence of notches in the frame of the conductive frame 44, and the possibility of the conductive rubber ring 5a not allowing a tight connection between the box cover 19 and the conductive frame 44 due to the presence of notches in the frame of the conductive rubber ring 5a. The conductive frame 44, the conductive rubber ring 5a, and the isolation cavity 192 all have the same cross-sectional shape along the depth direction perpendicular to the isolation cavity 192. That is, when the isolation cavity 192, the conductive rubber ring 5a, and the conductive frame 44 are vertically projected along the top surfaces of the control module circuit region 41, the driving module circuit region 42, and the port circuit region 43, which are vertically disposed on the circuit board 4, the projection lines have the same shape on the projection surface, thereby enabling the conductive frame 44, the conductive rubber ring 5a, and the isolation cavity 192 to be more easily fitted together for use.

[0036] 3 , in one embodiment, the electric drive controller of the present application further includes an insert 6, which is connected to a corresponding plug of another component of the completed vehicle to achieve electrical continuity. Specifically, the insert 6 includes a welding pin 61, which is welded to the circuit board 4 and connected to the port circuit area 43. The insert 6 and the conductive frame 44 are located on opposite sides of the circuit board 4. That is, after the insert 6 is connected to the plug of the other component, it communicates with the circuit board 4 through the welding pin 61 and further with the port circuit area 43, thereby realizing communication between the electric drive controller and the other component. The insert 6 further includes an insert end 62 located opposite the weld pin 61. At least a portion of the insert end 62 extends to be exposed from the box body 18. That is, the insert 6 is located on the box wall of the box body 18 and can penetrate the box wall, with a portion of the insert end 62 exposed from the box wall of the box body 18. The electric drive controller further includes a fixing member 7 that passes through the fixing holes 45 on the periphery of the circuit board 4 along the first direction to fix the circuit board 4 within the box body 18 .

[0037] In one embodiment, the electric drive controller of the present application further includes a heat dissipation water channel plate 10a and a bus capacity module 10b, the bus capacity module assembly 10b is connected to the controller box 1, and the heat dissipation water channel plate 10a is connected to the controller box 1 by screws. That is, it will be understood that the heat dissipation water channel plate 10a can dissipate heat from the bus capacity module assembly 10b, removing high heat generated during the operation of the electric drive controller and preventing damage to the electric drive controller.

[0038] Referring to Fig. 5, Fig. 5 is a structural schematic diagram of one embodiment of an electric drive system including a drive motor and an electric drive controller according to the present application. Another aspect of the present application provides a drive system including a drive motor 9 and the above-mentioned electric drive controller, where the drive motor 9 is connected to the electric drive controller. The structure of the electric drive controller has been described in detail above, so a description thereof will be omitted here.

[0039] 6, which is a cross-sectional view of the electric drive system taken along the direction BB in FIG. 5. In one embodiment, the electric drive controller includes a three-phase copper bus bar 8 provided in a controller box 1, and the three-phase copper bus bar 8 includes a connection end 81 exposed from the controller box 1. That is, the connection end 81 extends outside the controller box 1 so that the three-phase copper bus bar 8 is exposed from the controller box 1 for easy connection with other electronic components. The drive motor 9 includes a motor housing 91 and a motor terminal 92 exposed from the motor housing 91. When assembled, the motor terminal 92 is connected to the connection end 81 of the three-phase copper bus bar 8. The box body 18 and the motor housing 91 support each other, and a blocking member 10 is provided in a gap path between the box body 18 and the motor housing 91 along a direction extending from a connection point between the connection end 81 and the motor terminal 92 to the outside of the electric drive system (i.e., the direction indicated by the arrow a in FIG. 6). Here, the direction indicated by the arrow on line a is the direction toward the outside of the electric drive system, and the direction opposite to the direction indicated by the arrow on line a is the direction toward the inside of the electric drive system. The direction indicated by the arrow on line a is the direction of the path along which electromagnetic radiation from the electric drive system radiates to the outside. In other words, it will be understood that the connection point between the connection end 81 and the motor terminal 92 is located near the inside of the electromagnetic radiation path, and the blocking member 10 is located near the outside of the electromagnetic radiation path. Therefore, as electromagnetic waves radiate outward from the connection point between the connection end 81 and the motor terminal 92, they encounter the blocking member 10, which causes the blocking member 10 to perform a blocking function against the electromagnetic radiation. On the one hand, the electromagnetic waves are blocked and weakened as they radiate outward; on the other hand, the electromagnetic waves at the connection point between the connection end 81 and the motor terminal 92 must bypass the blocking member 10 as they radiate outward, which extends the radiation path and can also reduce certain radiation. This effectively reduces the problem of external radiation of electromagnetic waves generated at the connection point between the electric drive controller and the drive motor 9 exceeding the standards and being prone to EMC leakage, causing the EMC of the electric drive system assembly to not meet the standards.

[0040] More specifically, both the controller box 1 and the motor housing 91 include support surfaces 100, i.e., both the box body 18 of the controller box 1 and the motor housing 91 are provided with support surfaces 100, and the support surfaces 100 support and abut against each other. The support surfaces 100 of the box body 18 and the motor housing 91 are in contact, support, and abut against each other, effectively reducing the width of the gap path and thereby reducing the amount of electromagnetic radiation. Note that the gap between the support surfaces 100 is the gap path, and the blocking member 10 is provided within this gap path. The connection ends 81 are the three-phase copper busbars 8 extending from the support surface 100 of the controller box 1. That is, a through-hole-like structure is provided in the box wall of the controller box 1, allowing the connection ends 81 of the three-phase copper busbars 8 to extend outward. Furthermore, a protrusion 181 is formed on the support surface 100 of the box body 18, and a groove 911 is formed on the support surface 100 of the motor housing 91, with the protrusion 181 on the box body 18 being received in the groove 911 of the motor housing 91. The electric drive controller and drive motor 9 can be positioned and attached by the engagement of the protrusion 181 and the groove 911, and the protrusion 181 being received in the groove 911 also serves as a limit, making the assembly of the electric drive controller and drive motor 9 more solid and preventing the electric drive controller and drive motor 9 from loosening, which would cause current conduction at the connection point between the connection end 81 and the motor terminal 92 to exceed the standard, and preventing EMC leakage that would cause the electric drive system assembly to fail to meet the EMC standard. Furthermore, when multiple grooves 911 and protrusions 181 are provided, both the support surface 100 of the box body 18 and the support surface 100 of the motor housing 91 can have an uneven surface such as a toothed, wavy, or pulsed shape.

[0041] 1 , in some specific embodiments, the connection end 81 extends from the protrusion 181 so as to be exposed to the box body 18. That is, the protrusion 181 and the groove 911 are provided at the connection point between the connection end 81 and the motor terminal 92. Of course, it will be understood that in other embodiments, the protrusion 181 and the groove 911 can be provided at any position on the radiation path that radiates electromagnetic waves outward from the connection point between the connection end 81 and the motor terminal 92, that is, at any position along the direction of the arrow a from the connection point between the connection end 81 and the motor terminal 92.

[0042] According to another aspect of the present application, a vehicle is provided, the vehicle including a battery pack, a high-voltage bus and the above-mentioned electric drive controller, the high-voltage bus is connected to the battery pack and the port end 21 of the electric drive controller to realize the battery pack powering the electric drive controller and thereby ensure the normal operation of the electric drive controller, the structure of the electric drive controller has been described in detail above and therefore will not be described here.

[0043] In the description of this application, the use of reference terms such as "one embodiment," "some embodiments," "example," "particular example," or "some examples" means that the specific feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, general descriptions of the above terms do not necessarily refer to the same embodiment or example. The specific features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, if not mutually inconsistent, those skilled in the art may combine or combine different embodiments or examples and features of different embodiments or examples described herein.

[0044] The above is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent flow conversion made by using the contents of the specification and drawings of the present application, or any direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An electric drive controller including a controller box and electronic components disposed within the controller box, the controller box includes a closed cavity, an insertion hole, and a cover body that covers the closed cavity, the insertion hole communicating with the closed cavity; the electronic component includes a high voltage busbar piercing connector, the high voltage busbar piercing connector including a port end; The electric drive controller, wherein the high voltage busbar piercing connector is received in the closed cavity and the port end is received in the insertion hole.

2. the controller box further includes a receiving cavity, a connecting hole, and a separator; the connecting hole connects the receiving cavity and the closing cavity, the separating plate closes the connecting hole, and the separating plate is provided with a wire-through hole; the electronic component further includes a filter assembly and a circuit board, the circuit board being disposed within the receiving cavity; the filter assembly is housed in the closed cavity and connected to the high voltage busbar piercing connector; 2. The electric drive controller of claim 1, wherein the filter assembly includes a connection end, the connection end mounted within the wire hole and connected to the circuit board.

3. an isolation seal ring is further provided in the connection hole; 3. The electric drive controller according to claim 2, wherein the separator is mounted in the connection hole, the separator seal ring is fitted to a peripheral edge of the separator, and the separator seal ring abuts against the hole wall of the connection hole and the peripheral edge of the separator.

4. The controller box has a stopper formed at a connection point between the connection hole and the closed cavity, 3. The electric drive controller according to claim 2, wherein the separator is fixed to the stopper stage and covers the connection hole.

5. The controller box also has a stopper formed at a connection point between the connection hole and the receiving cavity, an isolation seal ring is further provided in the connection hole; The separator includes a first sub-plate and a second sub-plate, and the first sub-plate and the second sub-plate are fixed to the two stopper stages, respectively; 5. The electric drive controller of claim 4, wherein the isolation seal ring is abutted between the first and second sub-plates.

6. The filter assembly further includes a housing, the connection end portion being formed by an extension of the housing; 3. The electric drive controller of claim 2, wherein the separator is a fixed flange protruding from the housing.

7. The circuit board is provided with a control module circuit area and a drive module circuit area; 3. The electric drive controller according to claim 2, wherein fixing holes are further provided on the periphery of the circuit board, and the circuit board is fixed in the receiving cavity through the fixing holes.

8. the controller box includes a box body and a box cover that covers the box body; The closing cavity and the receiving cavity are both provided in the box body, and a removal opening is provided in the box cover at a position corresponding to the closing cavity, and the cover body covers the removal opening; The circuit board further includes a port circuit area and a conductive frame surrounding the port circuit area; 8. The electric drive controller according to claim 7, wherein an isolation cavity is further provided at a position corresponding to the accommodating cavity of the box cover, the port circuit area is located within the isolation cavity, and an end surface of the isolation cavity is pressed against the conductive frame.

9. a conductive rubber ring is further provided between the isolation cavity and the conductive frame; The conductive rubber ring is in contact with the conductive frame and the cavity end surface of the isolation cavity; The conductive frame and the conductive rubber ring are both connected to each other to form a closed frame structure; 9. The electric drive controller according to claim 8, wherein the conductive frame, the conductive rubber ring, and the isolation cavity all have the same cross-sectional shape along a depth direction perpendicular to the isolation cavity.

10. Further comprising an insertion member and a fixing member; The insert includes a welding pin, the welding pin is welded to the circuit board and connected to the port circuit area; the fixing member passes through the fixing hole along a first direction to fix the circuit board in the box body; 9. The electric drive controller according to claim 8, wherein the insertion member further includes an insertion end provided opposite the welding pin, and at least a portion of the insertion end extends so as to be exposed from the box body.

11. the controller box includes a box body and a box cover that covers the box body; a removal opening is provided in the box cover at a position corresponding to the closed cavity, and the cover body covers the removal opening; A boss that fits into the removal opening is formed on the box cover, and the boss is received in the removal opening; 2. The electric drive controller according to claim 1, wherein a seal ring is fitted to an outer wall of the boss, and the seal ring is positioned between the boss and an inner wall of the removal opening.

12. 1. An electric drive system including a drive motor, An electric drive system further comprising an electric drive controller according to any one of claims 1 to 11, wherein the drive motor is connected to the electric drive controller.

13. the electric drive controller includes a three-phase copper bus bar provided in the controller box, the three-phase copper bus bar including a connection end exposed from the controller box; the drive motor includes a motor housing and a motor terminal exposed from the motor housing; The controller box and the motor housing support each other, and the connection end is connected to the motor terminal; 13. The electric drive system of claim 12, wherein a blocking member is provided in a gap path between the controller box and the motor housing along a direction extending from a connection point between the connection end and the motor terminal to an outside of the electric drive system.

14. The controller box and the motor housing each include a support surface, and the support surfaces support and abut each other; the connection end extends from the support surface of the controller box so as to be exposed to the controller box; a protrusion is provided on the support surface of the controller box; The electric drive system of claim 13, wherein a recessed groove is provided on the support surface of the motor housing, and the protrusion is received in the recessed groove.

15. A vehicle including a battery pack and a high-voltage bus, 12. A motor vehicle further comprising the electric drive controller according to claim 1, wherein the high-voltage bus is connected to the battery pack and the port end.

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