Motor controller and shell of motor controller
By introducing a bypass flow channel into the motor controller housing, the three-phase interface and power module assembly problems are solved, and the heat dissipation and assembly are taken into account, which improves the overall performance of the motor controller.
Patent Information
- Application Number
- CN202422242200.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In the prior art, the assembly of the three-phase interface and the power module of the motor controller is difficult to achieve, especially when the three-phase interface model is changed, the problem of the cooling member, the cooling chamber and the three-phase interface overlapping on the housing is prone to occur.
A motor controller housing is designed, including a housing, a cooling chamber, accommodating chamber and a bypass flow channel. The bypass flow channel is located between the accommodating chamber and the installation slot. The coolant flows through the bypass flow channel to achieve heat dissipation, and avoids overlapping the cooling chamber and the installation slot, ensuring the assembly of the interface components and the power module.
While dissipating heat, it avoids overlapping the cooling chamber and the installation groove, ensures the normal assembly of the interface components and power modules, and improves the assembly efficiency and heat dissipation effect of the motor controller.
Smart Images
Figure CN223246924U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor controllers for new energy vehicles, and in particular to a motor controller and a housing of the motor controller. Background Art
[0002] The field of new energy vehicles has developed rapidly in recent years. As one of the core components of new energy vehicles, the electric drive system's driving characteristics determine the main performance indicators of the vehicle's operation. The motor and controller, as key components in the electric drive system, are crucial to the normal operation of new energy vehicles. The motor controller's housing is equipped with a cooling chamber and a storage chamber. The storage chamber houses a cooling member for dissipating heat from the power module. The cooling member is equipped with a water inlet and a water outlet. Both the inlet and outlet of the cooling member must be connected to the cooling chamber. This allows coolant to flow from the cooling chamber into the water inlet and then from the water outlet into the cooling chamber, thereby dissipating heat from the motor controller's power module.
[0003] However, in the prior art, the installation position of the power module does not change. If the model of the three-phase interface of the motor controller is changed, it is easy for the three-phase interface of the motor controller, the water inlet of the cooling component and the cooling chamber to overlap on the shell, making it difficult to complete the assembly of the three-phase interface of the motor controller and the power module. Utility Model Content
[0004] The main purpose of the utility model is to provide a motor controller and a housing of the motor controller to solve the problem in the prior art that the three-phase interface and the power module of the motor controller are difficult to assemble.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a motor controller, which includes: a shell, along a first direction, the shell has a first side and a second side arranged opposite to each other, the first side of the shell is provided with a accommodating cavity, the accommodating cavity is used to install the control component, the second side of the shell is provided with a cooling chamber and a mounting groove, the cooling chamber is used to accommodate coolant, and the mounting groove is used to install the interface component; a cooling component is arranged in the accommodating cavity, the cooling component can dissipate heat to the control component, the cooling component is provided with a cooling flow channel and a first flow channel opening and a second flow channel opening both connected to the cooling flow channel, the first flow channel opening is connected to the cooling chamber; a bypass flow channel is provided on the shell, along the first direction, the bypass flow channel is located between the accommodating cavity and the mounting groove, the bypass flow channel is used to connect the second flow channel opening and the cooling chamber.
[0006] Furthermore, along the second direction, the bypass channel extends from the second channel opening in a direction away from the mounting groove to the side wall of the shell, and the first direction and the second direction are set at an angle; the shell of the motor controller also includes a seal, which is sealed and connected to the first end of the bypass channel away from the mounting groove, and the connection position between the cooling chamber and the bypass channel is located between the two ends of the bypass channel.
[0007] Furthermore, the cooling chamber includes a first chamber and a second chamber connected to the first chamber, and the first chamber and the second chamber are arranged at an angle, the second chamber is connected to the first flow channel opening, the first chamber is located between the two ends of the bypass flow channel, and the first chamber is connected to the bypass flow channel.
[0008] Furthermore, along the first direction, from the second side to the first side, the depth of the first cavity is greater than the depth of the mounting groove; or, the depth of the first cavity and the depth of the second cavity are both greater than the depth of the mounting groove.
[0009] Furthermore, the bottom wall of the accommodating cavity is provided with a first flow channel and a second flow channel, and the first flow channel and the second flow channel both extend along the first direction, wherein the first flow channel is used to connect the first flow channel opening and the cooling chamber, and the second flow channel is used to connect the second flow channel opening and the bypass flow channel; and / or, the inner diameter of the bypass flow channel is greater than or equal to 8 mm and less than or equal to 20 mm.
[0010] Furthermore, the outer shell includes a bottom plate, multiple side plates and a cover plate, the multiple side plates are connected to the bottom plate, and the bottom plate and the multiple side plates form a accommodating cavity; a cooling groove is provided on the side of the bottom plate facing away from the accommodating cavity, and the cover plate is covered in the cooling groove so that the bottom plate and the cover plate form a cooling chamber.
[0011] Furthermore, along the first direction, the cooling groove includes a first groove section and a second groove section that are connected and have successively increasing cross-sectional areas. The first groove section is used to accommodate cooling liquid, and the inner wall of the second groove section is sealed to the cover plate.
[0012] According to another aspect of the present invention, a motor controller is provided, comprising the housing of the motor controller, a control assembly disposed in the accommodating cavity, and an interface assembly, a portion of which is disposed in the mounting groove, the interface assembly being electrically connected to the control assembly.
[0013] Furthermore, the control component includes a power module, the power module includes a power unit and three first copper bars electrically connected to the power unit, and the extension direction of each first copper bar is perpendicular to the first direction; the interface component includes a terminal block and three second copper bars and three third copper bars connected to the terminal block, the terminal block is located in the accommodating cavity, the three second copper bars are correspondingly connected to the three first copper bars, and each third copper bar extends from the terminal block along the first direction to the mounting slot and extends out from the mounting slot.
[0014] Furthermore, the third copper busbar can be arranged in a bendable manner.
[0015] By applying the technical solution of the present invention, a bypass flow channel is additionally provided, and the bypass flow channel is provided between the accommodating chamber and the mounting groove, and the second flow channel opening and the cooling chamber are both connected to the bypass flow channel. In this way, the coolant can flow from the cooling chamber through the bypass flow channel to the second flow channel opening, and then from the second flow channel opening to the first flow channel opening through the cooling flow channel, and return to the cooling chamber from the first flow channel opening, so that the coolant can circulate in the cooling chamber and the cooling flow channel to dissipate heat for the control component; in this way, on the one hand, when heat dissipation of the control component is achieved, the overlap of the cooling chamber and the mounting groove can be avoided; on the other hand, even if the projection of the interface component and the second flow channel opening on the shell overlap, the bypass flow channel and the mounting groove are arranged sequentially in the first direction and are not connected to each other, and the bypass flow channel can connect the second flow channel opening and the cooling chamber to avoid affecting the assembly of the power module and the interface component. In this way, when heat dissipation of the control component is achieved, the assembly of the interface component and the power module of the motor controller can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0017] Figure 1 A schematic structural diagram of an embodiment of a housing of a motor controller of the present utility model is shown;
[0018] Figure 2 Shown Figure 1 A schematic structural diagram of a motor controller housing at an angle (wherein a cover plate is shown);
[0019] Figure 3 Shown Figure 1 A sectional view of a housing of a machine controller;
[0020] Figure 4 Shown Figure 1 A schematic structural diagram of the cooling chamber, cooling member, bypass flow channel and mounting groove of the motor controller housing;
[0021] Figure 5 The schematic diagram shows the structure of the control component and the interface component of the motor controller of the present utility model.
[0022] The above drawings include the following reference numerals:
[0023] 10. Housing; 11. Accommodating cavity; 12. Cooling chamber; 121. First chamber; 122. Second chamber; 123. First slot section; 124. Second slot section; 13. Mounting slot; 14. First flow channel; 15. Second flow channel; 16. Bottom plate; 17. Side plate; 18. Cover plate; 19. Liquid filling port; 20. Cooling member; 21. First flow channel opening; 22. Second flow channel opening; 50. Bypass flow channel; 51. First end; 71. First copper busbar; 72. Second copper busbar; 73. Third copper busbar. DETAILED DESCRIPTION
[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0025] It should be noted that, in the embodiment of the present invention, Figure 1 As shown, the first direction is the height direction of the housing 10 , and the second direction is the width direction of the housing 10 .
[0026] like Figures 1 to 4 As shown, the utility model provides a housing for a motor controller. The housing of the motor controller includes a shell 10. Along a first direction, the shell 10 has a first side and a second side arranged opposite to each other. The first side of the shell 10 is provided with a receiving cavity 11, and the receiving cavity 11 is used to install the control component. The second side of the shell 10 is provided with a cooling chamber 12 and a mounting groove 13. The cooling chamber 12 is used to accommodate coolant, and the mounting groove 13 is used to install the interface component. A cooling member 20 is arranged in the receiving cavity 11. The cooling member 20 can dissipate heat to the control component. The cooling member 20 is provided with a cooling flow channel and a first flow channel opening 21 and a second flow channel opening 22 both connected to the cooling flow channel. The first flow channel opening 21 is connected to the cooling chamber 12. A bypass flow channel 50 is provided on the shell 10. Along the first direction, the bypass flow channel 50 is located between the receiving cavity 11 and the mounting groove 13. The bypass flow channel 50 is used to connect the second flow channel opening 22 and the cooling chamber 12.
[0027] In the above technical solution, by additionally providing a bypass channel 50, and the bypass channel 50 is provided between the accommodating cavity 11 and the mounting groove 13, the second channel opening 22 and the cooling chamber 12 are both connected to the bypass channel 50. In this way, the coolant can flow from the cooling chamber 12 through the bypass channel 50 to the second channel opening 22, and then from the second channel opening 22 to the first channel opening 21 through the cooling channel, and then flow back to the cooling chamber from the first channel opening 21, so that the coolant can circulate in the cooling chamber 12 and the cooling channel to dissipate heat for the control component; in this way, on the one hand, While achieving heat dissipation for the control component, the cooling chamber 12 and the mounting groove 13 can be avoided from overlapping; on the other hand, even if the projection of the interface component and the second flow channel opening 22 on the shell overlap, the bypass flow channel 50 and the mounting groove 13 are arranged in sequence in the first direction and are not connected to each other. The bypass flow channel 50 can connect the second flow channel opening 22 and the cooling chamber 12 to avoid affecting the assembly of the power module and the interface component. In this way, while achieving heat dissipation for the control component, the assembly of the interface component and the power module of the motor controller can be achieved.
[0028] like Figures 1 to 3 As shown, in an embodiment of the present invention, along the second direction, the bypass channel 50 extends from the second channel opening 22 to the side wall of the shell 10 in a direction away from the mounting groove 13, and the first direction and the second direction are arranged at an angle; the shell of the motor controller also includes a seal, which is sealed and connected to the first end 51 of the bypass channel 50 away from the mounting groove 13, and the communication position between the cooling chamber 12 and the bypass channel 50 is located between the two ends of the bypass channel 50.
[0029] In the above technical solution, by extending the bypass channel 50 from the second channel opening 22 to the side wall of the housing 10 in a direction away from the mounting groove 13, a hole can be directly punched in the side wall of the housing 10 to the second channel opening 22. This facilitates processing and eliminates the need for injection molding. In addition, by providing a seal, the coolant can be prevented from flowing out of the bypass channel 50 from the first end 51 away from the mounting groove 13.
[0030] Specifically, in an embodiment of the present invention, the first direction and the second direction are arranged perpendicularly.
[0031] like Figures 1 to 4 As shown, in an embodiment of the present invention, the cooling chamber 12 includes a first chamber 121 and a second chamber 122 connected to the first chamber 121, and the first chamber 121 and the second chamber 122 are arranged at an angle, the second chamber 122 is connected to the first flow channel opening 21, the first chamber 121 is located between the two ends of the bypass flow channel 50, and the first chamber 121 is connected to the bypass flow channel 50.
[0032] Through the above arrangement, on the one hand, the cooling chamber 12 can avoid the installation groove 13 so that the interface component can be installed in the installation groove 13 to avoid the phenomenon that the position of the interface component and the position of the cooling chamber 12 overlap; on the other hand, the first chamber 121 can connect the bypass channel 50 and the second chamber 122 to connect the cooling channel with the second chamber 122 to realize the circulation of the coolant in the cooling chamber 12 and the cooling channel; on the other hand, the area of the cooling chamber 12 can be increased as much as possible, thereby improving the heat dissipation effect.
[0033] like Figure 1 As shown, in the embodiment of the present invention, along the first direction, from the second side to the first side, the depth of the first cavity 121 is greater than the depth of the mounting groove 13 .
[0034] Through the above arrangement, the cooling chamber 12 can be communicated with the bypass flow channel 50 .
[0035] In one embodiment, the depth of the first cavity 121 and the depth of the second cavity 122 are both greater than the depth of the mounting groove 13 , so that more coolant can be contained in the cooling cavity 12 , thereby achieving a better cooling effect.
[0036] Preferably, in the embodiment of the present invention, the depth of the first cavity 121 is equal to the depth of the second cavity 122 , that is, the surface where the cooling cavity 12 is located is a plane, which is convenient for processing.
[0037] In one embodiment, along the first direction, the depth of the second chamber 122 may be greater than the depth of the first chamber 121 .
[0038] like Figures 1 to 4 As shown, in an embodiment of the present invention, the bottom wall of the accommodating cavity 11 is provided with a first flow channel 14 and a second flow channel 15, and the first flow channel 14 and the second flow channel 15 both extend along the first direction, wherein the first flow channel 14 is used to connect the first flow channel opening 21 and the cooling chamber 12, and the second flow channel 15 is used to connect the second flow channel opening 22 and the bypass flow channel 50.
[0039] Through the above arrangement, on the one hand, the first flow channel opening 21 is connected to the second chamber 122 through the first flow channel 14, and the second flow channel opening 22 is connected to the first chamber 121 through the second flow channel 15, so that the coolant can circulate in the cooling chamber 12, thereby achieving the heat dissipation effect.
[0040] Preferably, in the embodiment of the present invention, the inner diameter of the bypass flow channel 50 is greater than or equal to 8 mm and less than or equal to 20 mm.
[0041] The above arrangement can avoid not only the phenomenon of reduced flow velocity due to an excessively large inner diameter of the bypass channel 50 , but also the phenomenon of increased friction loss of the coolant due to an excessively small inner diameter of the bypass channel 50 .
[0042] like Figures 1 to 3 As shown, in an embodiment of the present invention, the housing 10 includes a bottom plate 16, a plurality of side plates 17 and a cover plate 18, the plurality of side plates 17 are connected to the bottom plate 16, and the bottom plate 16 and the plurality of side plates 17 form an accommodating cavity 11; a cooling groove is provided on the side of the bottom plate 16 facing away from the accommodating cavity 11, and the cover plate 18 is covered on the cooling groove, so that the bottom plate 16 and the cover plate 18 form a cooling chamber 12.
[0043] In the above technical solution, the cooling groove can be sealed by providing the cover plate 18 to prevent the coolant in the cooling chamber 12 from overflowing.
[0044] Specifically, in the embodiment of the present invention, a liquid injection port 19 is provided on the cover plate 18 . The liquid injection port 19 is in communication with the cooling chamber 12 , and the coolant can be injected into the cooling chamber 12 through the liquid injection port 19 .
[0045] like Figure 1 and Figure 2 As shown, in an embodiment of the present invention, along the first direction, the cooling groove includes a first groove section 123 and a second groove section 124 that are connected and have successively increasing cross-sectional areas. The first groove section 123 is used to accommodate cooling liquid, and the inner wall of the second groove section 124 is sealed with the cover plate 18.
[0046] In the above technical solution, by setting the first groove section 123, coolant can be accommodated to facilitate cooling of components such as the power module in the motor controller. By setting the second groove section 124, the cover plate 18 can be installed, thereby avoiding the cover plate 18 protruding from the outer shell 10, thereby avoiding affecting the aesthetics of the motor controller outer shell.
[0047] like Figure 1 and Figure 3 As shown, an embodiment of the present invention provides a motor controller. The motor controller includes the motor controller housing described above; a control assembly disposed in a receiving cavity 11; and an interface assembly, part of which is disposed in a mounting groove 13 and electrically connected to the control assembly.
[0048] like Figure 5As shown, in an embodiment of the present invention, the control component includes a power module, the power module includes a power unit and three first copper bars 71 electrically connected to the power unit, and the extension direction of each first copper bar 71 is perpendicular to the first direction; the interface component includes a terminal block and three second copper bars 72 and three third copper bars 73 connected to the terminal block, the terminal block is located in the accommodating cavity 11, the three second copper bars 72 are correspondingly connected to the three first copper bars 71, and each third copper bar 73 extends from the terminal block along the first direction to the mounting groove 13 and extends out from the mounting groove 13.
[0049] In the above technical solution, by additionally providing a terminal block, the three second copper bars 72 of the terminal block are correspondingly connected to the three first copper bars 71, and the three third copper bars 73 have an extension direction different from that of the three first copper bars 71, and the third copper bars 73 extend from the mounting groove 13. In this way, the third copper bar 73 can be used as an output copper bar electrically connected to the motor, thereby changing the extension direction of the output copper bar, thereby adapting to the situation where the motor is installed on the second side of the housing 10, thereby saving assembly space.
[0050] like Figure 5 As shown, in the embodiment of the present invention, the third copper busbar 73 can be arranged in a bendable manner.
[0051] Through the above settings, the external structure of the third copper busbar 73 can be adjusted to adjust the extension direction of the third copper busbar 73, thereby adjusting the extension direction of the output copper busbar. In this way, without changing the structure of the mature components inside the motor controller, it can adapt to motors with different installation positions.
[0052] In one embodiment, the power module further includes positive and negative copper bars connected to the power unit. Changing the structure of the positive and negative copper bars and the three first copper bars 71 can adjust the interface positions of the positive and negative poles and the three phases.
[0053] Specifically, in an embodiment of the present invention, when the interface component of the motor controller blocks the second flow channel opening 22 of the power module and the assembly cannot be completed, an additional bypass flow channel 50 is provided and the bypass flow channel 50 is designed inside the shell 10 so that the cooling flow channels of the cooling chamber 12 and the cooling component 20 are connected, so that the cooling chamber avoids the interface component.
[0054] Specifically, in the embodiment of the present invention, the motor controller is compact in design and has high space utilization.
[0055] The above motor controller has all the advantages of the housing of the above motor controller, which will not be described in detail here.
[0056] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: by additionally providing a bypass flow channel, and the bypass flow channel is provided between the accommodating chamber and the mounting groove, the second flow channel opening and the cooling chamber are both connected to the bypass flow channel. In this way, the coolant can flow from the cooling chamber through the bypass flow channel to the second flow channel opening, and then from the second flow channel opening to the first flow channel opening through the cooling flow channel, and then flow back to the cooling chamber from the first flow channel opening, so that the coolant can circulate in the cooling chamber and the cooling flow channel to dissipate heat for the control component; in this way, on the one hand, when heat dissipation of the control component is achieved, the cooling chamber and the mounting groove can be avoided from overlapping; on the other hand, even if the projections of the interface component and the second flow channel opening on the housing overlap, the bypass flow channel and the mounting groove are arranged sequentially in the first direction and are not connected to each other, and the bypass flow channel can connect the second flow channel opening and the cooling chamber to avoid affecting the assembly of the power module and the interface component. In this way, when heat dissipation of the control component is achieved, the interface component and the power module of the motor controller can be assembled.
[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A housing of a motor controller, characterized in that: include: A housing (10) having a first side and a second side arranged opposite to each other along a first direction, the first side of the housing (10) being provided with a receiving cavity (11), the receiving cavity (11) being used for installing a control component, the second side of the housing (10) being provided with a cooling chamber (12) and a mounting groove (13), the cooling chamber (12) being used for accommodating a coolant, and the mounting groove (13) being used for installing an interface component; a cooling member (20) disposed in the accommodating cavity (11), the cooling member (20) being capable of dissipating heat from the control component, the cooling member (20) being provided with a cooling flow channel and a first flow channel opening (21) and a second flow channel opening (22) both communicating with the cooling flow channel, the first flow channel opening (21) being in communication with the cooling chamber (12); A bypass channel (50) is provided on the housing (10). Along the first direction, the bypass channel (50) is located between the accommodating cavity (11) and the mounting groove (13). The bypass channel (50) is used to connect the second channel opening (22) and the cooling chamber (12).
2. The housing of the motor controller according to claim 1, characterized in that Along a second direction, the bypass flow channel (50) extends from the second flow channel opening (22) in a direction away from the mounting groove (13) to the side wall of the housing (10), and the first direction and the second direction are arranged at an angle; The housing of the motor controller further comprises a seal, wherein the seal is sealedly connected to a first end (51) of the bypass channel (50) away from the mounting groove (13), and a communication position between the cooling chamber (12) and the bypass channel (50) is located between the two ends of the bypass channel (50).
3. The housing of the motor controller according to claim 2, characterized in that: The cooling chamber (12) comprises a first chamber (121) and a second chamber (122) communicating with the first chamber (121), and the first chamber (121) and the second chamber (122) are arranged at an angle, the second chamber (122) is communicated with the first flow channel opening (21), the first chamber (121) is located between the two ends of the bypass flow channel (50), and the first chamber (121) is communicated with the bypass flow channel (50).
4. The housing of the motor controller according to claim 3, characterized in that: Along the first direction, from the second side to the first side, the depth of the first chamber (121) is greater than the depth of the mounting groove (13); or, the depth of the first chamber (121) and the depth of the second chamber (122) are both greater than the depth of the mounting groove (13).
5. The housing of the motor controller according to any one of claims 1 to 4, characterized in that: The bottom wall of the accommodating cavity (11) is provided with a first flow channel (14) and a second flow channel (15), and the first flow channel (14) and the second flow channel (15) both extend along the first direction, wherein the first flow channel (14) is used to connect the first flow channel opening (21) and the cooling chamber (12), and the second flow channel (15) is used to connect the second flow channel opening (22) and the bypass flow channel (50); and / or, The inner diameter of the bypass flow channel (50) is greater than or equal to 8 mm and less than or equal to 20 mm.
6. The housing of the motor controller according to any one of claims 1 to 4, characterized in that: The housing (10) includes a bottom plate (16), a plurality of side plates (17) and a cover plate (18), wherein the plurality of side plates (17) are connected to the bottom plate (16), and the bottom plate (16) and the plurality of side plates (17) enclose the accommodating cavity (11); a cooling groove is provided on a side of the bottom plate (16) facing away from the accommodating cavity (11), and the cover plate (18) is covered on the cooling groove, so that the bottom plate (16) and the cover plate (18) enclose the cooling chamber (12).
7. The housing of the motor controller according to claim 6, characterized in that: Along the first direction, the cooling groove comprises a first groove section (123) and a second groove section (124) which are connected and have successively increasing cross-sectional areas; the first groove section (123) is used to accommodate cooling liquid; and the inner wall of the second groove section (124) is sealedly connected to the cover plate (18).
8. A motor controller, characterized in that: include: The housing of the motor controller according to any one of claims 1 to 7; The control component is arranged in the accommodating cavity (11); The interface component, part of which is arranged in the installation groove (13), is electrically connected to the control component.
9. The motor controller according to claim 8, characterized in that: The control component includes a power module, the power module includes a power unit and three first copper bars (71) electrically connected to the power unit, and the extension direction of each first copper bar (71) is perpendicular to the first direction; The interface component comprises a wiring seat and three second copper bars (72) and three third copper bars (73) connected to the wiring seat, wherein the wiring seat is located in the accommodating cavity (11), the three second copper bars (72) are correspondingly connected to the three first copper bars (71), and each of the third copper bars (73) extends from the wiring seat along the first direction to the mounting groove (13) and protrudes from the mounting groove (13).
10. The motor controller according to claim 9, characterized in that: The third copper busbar (73) is arranged in a bendable manner.