Motor controller, power assembly and vehicle

Abstract

The invention discloses a motor controller, a power assembly and a vehicle. The motor controller comprises an electric control shell, a shielding plate, a control plate and a first plug connector. The shielding plate, the control panel and the first plug connector are all arranged in the electric control shell. The electric control shell and the shielding plate form a first shielding cabin, at least part of the first plug connector is contained in the first shielding cabin, and the first plug connector is connected with the control panel. According to the motor controller, the power assembly and the vehicle, the structure of the motor controller is simplified, the size is small, and the electromagnetic shielding effect on the first plug connector is good.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a motor controller, a powertrain and a vehicle. Background Art

[0002] With the continuous development of the new energy automobile industry, the functions inside the car are becoming more and more, and its internal space will become more and more compact. The existing motor controller includes an electric control housing, a control board, a drive board, a shielding board, and a connector connected to the control board. The connector needs to be electromagnetically isolated from other components outside the control board, for example, the connector needs to be electromagnetically isolated from the drive board.

[0003] However, in the related art, the motor housing needs to be additionally processed with a shielding structure for the connector on the control board, which results in a complex structure of the motor controller. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a motor controller, a powertrain and a vehicle to solve the technical problem of the complex structure of the motor controller in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a motor controller, comprising an electric control housing, a shielding plate, a control board, and a first connector. The shielding plate, the control board, and the first connector are all arranged in the electric control housing. The electric control housing and the shielding plate form a first shielding cabin, the first connector is at least partially accommodated in the first shielding cabin, and the first connector is connected to the control board.

[0006] In a second aspect, an embodiment of the present application provides a power assembly, including a motor, a transmission, and a motor controller as described above, which reduces the volume of the power assembly and improves the electromagnetic shielding effect.

[0007] In a third aspect, an embodiment of the present application provides a vehicle, including a vehicle body and a powertrain as described above installed on the vehicle body, thereby reducing the volume of the powertrain and improving the electromagnetic shielding effect.

[0008] The present application provides a motor controller, a powertrain and a vehicle, based on forming a first shielding cabin between an electric control housing and a shielding plate, wherein a first connector is at least partially accommodated in the first shielding cabin, rationally utilizing the space in the inner cavity of the electric control housing and the shielding performance of the shielding plate itself, thereby achieving a good electromagnetic isolation effect between the first connector and other components outside the control board, thereby simplifying the structural design of the first shielding cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 It is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application.

[0011] Figure 2 yes Figure 1 Schematic diagram of the structure of the powertrain of the vehicle.

[0012] Figure 3 yes Figure 1 Schematic diagram of the structure of the powertrain and transmission half shaft of the vehicle.

[0013] Figure 4 yes Figure 3 A partial cross-sectional view of the vehicle's powertrain and drive axle shaft.

[0014] Figure 5 yes Figure 2 An exploded view of the vehicle's powertrain omitting the DC bus.

[0015] Figure 6 yes Figure 3 Magnified view of part I in FIG.

[0016] Figure 7 yes Figure 2 An enlarged view of the powertrain support bracket.

[0017] Figure 8 yes Figure 2 Schematic diagram of the structure of the motor controller of the powertrain of the vehicle.

[0018] Fig. 9 yes Figure 8 A side view of the motor controller with the cover and three-phase cover omitted.

[0019] Fig.10 yes Figure 8 The motor controller in the figure omits the top view of the cover, three-phase cover and control board.

[0020] Fig.11 yes Figure 8 A top view of the motor controller omitting the cover, three-phase cover, control board and shielding plate.

[0021] Fig.12 yes Figure 8 The bottom view of the motor controller omits the cover body and the three-phase cover plate.

[0022] Fig.13 yes Fig.12 A cross-sectional view of the motor controller along line AA.

[0023] Fig.14 yes Fig.13 An enlarged view of part II of the motor controller.

[0024] Fig.15 yes Figure 8 A partial cross-section of the motor controller and DC bus.

[0025] Fig.16 yes Figure 8 Exploded view of the filter in the motor controller.

[0026] Fig.17 yes Fig.12 A cross-sectional view of the motor controller along line BB.

[0027] Fig.18 yes Fig.12 Cross-sectional view of the motor controller along line CC.

[0028] Description of main component symbols: vehicle 1000; body 100; powertrain 200;

[0029] Motor 1; first supporting and matching portion 110;

[0030] Transmission 2; input side component 210; output side component 220; output half shaft 2201; second supporting matching portion 230; corner portion 300;

[0031] Motor controller 3;

[0032] Motor housing 4;

[0033] Transmission housing 5; first housing 51; second housing 52; first sub-housing 521; second sub-housing 522;

[0034] Electric control housing 6; first edge portion 610; oblique opening 6101; inwardly contracted notch 6102; second edge portion 620; corner point 6201;

[0035] DC bus 7; positive bus 710; negative bus 720; wire clamp 730; fixed support frame 740; bus copper bar 750;

[0036] Transmission half shaft 8;

[0037] Support frame 9; first support plate 910; first mounting position 9101; second support plate 920; second mounting position 9201; protective plate 930; protective groove 9301; third support plate 940; third mounting position 9401;

[0038] Box 10; DC bus interface 101; accommodating cavity 102; first shielding cabin 103; second shielding cabin 104; partition 1041; first box part 105; abutment part 1051; suspended part 1052; second box part 106; third box part 107; bottom plate 11; opening 1101; side plate 12, first side wall 121; second side wall 122; support wall 123; first edge 124, second edge 125; through hole 1201; through hole 131; avoidance space 132; positioning groove 133; top plate 14; cover 15; operation hole 151; three-phase cover plate 16; busbar cover plate 17; mounting block 18; first mounting hole 181; second mounting hole 182; first support mounting part 191; fixing hole 1911; second support mounting part 192;

[0039] First integrated component 20; drive board 21; control board 22; shielding board 23; notch 2301; via 2302; shielding wall 231;

[0040] Wiring channel 301; first connector 31; second connector 33; cable 34; fixing seat 35; first mounting bracket 351; second mounting bracket 352; restraint structure 353;

[0041] Three-phase adapter 40; adapter base 41; three-phase copper busbar 42; magnetic ring 43;

[0042] Hall element 50;

[0043] IGBT module 60; input copper bar 61; output copper bar 62; IGBT board 65; heat sink pin 66;

[0044] The second integrated component 70; the DC bus capacitor 71; the capacitor body 711; the capacitor support part 712; the sampling structure 713; the transfer copper bus 714; the DC output copper bus 715; the locking piece 716; the filter 72; the filter base 721; the alignment hole 7211; the first magnetic ring 722; the first plug hole 7221; the second magnetic ring 723; the second plug hole 7231; the X capacitor 724; the Y capacitor 725; the connecting plate 726;

[0045] DC mount 80;

[0046] Cooling pipeline 90; IGBT heat dissipation pipeline 91; first channel 911; second channel 912; third channel 913; drainage structure 915; external pipeline 94; temperature sensor 95.

[0047] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] It is understood that the terms in the specification and claims of the present application and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present application. The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. Unless the context clearly states otherwise, the singular forms "one" and "the" are also intended to include plural forms. The term "including" and any of their variations are intended to cover non-exclusive inclusions. In addition, the present application can be implemented in a variety of different forms and is not limited to the embodiments described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, in which the words indicating the orientation such as upper, lower, left, and right are only for the position of the structure shown in the corresponding drawings. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be a connection between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] The following description is a preferred embodiment of the present invention, but the above description is for the purpose of explaining the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0051] The following first briefly introduces the basic concepts involved in the embodiments of the present application.

[0052] Please also read Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a vehicle 1000 provided in an embodiment of the present application; Figure 2 yes Figure 1Schematic diagram of the structure of the powertrain 200 of the vehicle 1000 in FIG. The vehicle 1000 includes a vehicle body 100 and a powertrain 200 mounted on the vehicle body 100. A mounting seat is provided on the vehicle body 100. The powertrain 200 is fixedly connected to the vehicle body 100 via the mounting seat. Specifically, the powertrain 200 is fixed to the vehicle body 100 by welding the mounting seat or by screw locking. The vehicle 1000 may be, but is not limited to, a vehicle using the powertrain 200, such as an automobile or a light rail vehicle.

[0053] It should be noted that the Figure 1 The vehicle 1000 is merely an example and does not constitute a limitation on the vehicle 1000. The vehicle 1000 may include Figure 1 More or fewer components than shown, or combinations of certain components, or different components, for example, the vehicle 1000 may also include onboard equipment, wheels, etc.

[0054] For the accuracy of description, please refer to the directions in this article. Figure 2 For reference, the term "length direction X" refers to the direction of the vehicle 1000, and is parallel to the length direction of the vehicle 1000, that is, the front-to-back direction (where the positive direction of the X axis is the front). The term "width direction Y" refers to the direction from the left wheel of the vehicle 1000 to the right wheel, and is parallel to the width direction of the vehicle 1000, that is, the left-right direction (where the positive direction of the Y axis is the right). The term "height direction Z" refers to the direction from the support plane of the vehicle 1000 to the highest protruding part of the vehicle 1000, and is parallel to the height direction of the vehicle 1000, that is, the up-down direction (where the positive direction of the Z axis is the top). Among them, the length direction X, the width direction Y and the height direction Z together constitute the three orthogonal directions of the vehicle 1000 or the motor controller 3. The length direction of the motor controller 3 is parallel to the length direction of the vehicle 1000, the width direction of the motor controller 3 is parallel to the width direction of the vehicle 1000, and the height direction of the motor controller 3 is parallel to the height direction of the vehicle 1000. For the convenience of description, the up-down, left-right, and front-to-back directions in this application are relative positions and do not constitute a limitation to implementation. The length direction X, width direction Y and height direction Z of the motor controller 3 can be customized according to the specific structure of the product and the perspective of the drawings, and this application does not make specific limitations. For example, in this embodiment, the first direction is parallel to the height direction Z, the second direction is parallel to the length direction X, and the third direction is parallel to the width direction Y.

[0055] Please also read Figure 1 , Figure 3 to Figure 4 , Figure 3 yes Figure 1 A schematic diagram of the structure of the powertrain 200 and the transmission half shaft 8 of the vehicle 1000; Figure 4 yes Figure 3A partial cross-sectional view of a powertrain 200 and a transmission half shaft 8 of a vehicle 1000 in FIG. The powertrain 200 includes a motor 1, a transmission 2 and a motor controller 3. The motor 1 is connected to the transmission 2 and the motor controller 3. The motor controller 3 is used to control the operation of the motor 1. The motor 1 is used to drive the transmission 2 to work. Specifically, the transmission 2 includes an input side component 210 transmission-connected to the motor 1 and an output side component 220 transmission-connected to the input side component 210. The vehicle 1000 also includes a transmission half shaft 8. The output side component 220 is connected to at least one transmission half shaft 8, thereby achieving control of the speed of the vehicle 1000. Exemplarily, in this embodiment, the output side component 220 includes two output half shafts 2201, and the two output half shafts 2201 are respectively connected to one transmission half shaft 8.

[0056] The motor 1 is connected to the transmission 2 and a corner 300 is formed at the connection. The motor controller 3 is installed at the connection corner 300 of the motor 1 and the transmission 2, and overlaps with the motor 1 and the transmission 2, so that the motor controller 3 is integrated with the motor 1 and the transmission 2 into a powertrain 200. The corner 300 is roughly L-shaped. In the height direction Z of the powertrain 200, the motor controller 3 can sink toward the transmission half shaft 8 at the corner 300, so that the height of the motor controller 3 is roughly flush with the height of the transmission 2 and the motor 1, so that the motor controller 3 makes full use of the remaining space between the motor 1 and the transmission 2, reducing the volume of the powertrain 200. In some embodiments, the motor controller 3 can also be directly overlapped on the motor 1. Along the height direction Z of the motor controller 3, the highest point of the motor controller 3 is lower than the highest point of the motor 1 and / or the highest point of the transmission 2, so that the motor controller 3 makes full use of the remaining space between the motor 1 and the transmission 2, reducing the volume of the powertrain 200. Exemplarily, in this embodiment, the highest point of the motor controller 3 is lower than the highest point of the motor 1 and the highest point of the transmission 2. In some embodiments, the highest point of the motor controller 3 may also be slightly higher than the highest point of the motor 1 or the highest point of the transmission 2. The height of the highest point of the motor controller 3 above the motor 1 and the transmission 2 is much smaller than the height of the motor controller 3. For example, the highest point of the motor controller 3 is 0.5mm-10mm higher than the height of the motor 1 and the transmission 2. The height difference between the highest point of the motor controller 3 and the highest point of the motor 1 or the transmission 2 is 0.5mm-10mm. For example, the height difference between the highest point of the motor controller 3 and the highest point of the motor 1 or the transmission 2 is 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm, etc.

[0057] Please also read Figures 1 to 5 , Figure 5 yes Figure 2The powertrain 200 of the vehicle 1000 in the exploded view omits the DC bus 7. The output side component 220 and the input side component 210 are sequentially arranged along the length direction X of the powertrain 200, and the motor controller 3 overlaps the motor 1 and the output side component 220. As a result, the output side component 220 can be used to support the motor controller 3, thereby avoiding the need to provide an additional support seat to support the electric controller, making the powertrain 200 more compact, improving space utilization, and reducing the volume of the powertrain 200; on the other hand, the stable fixation of the motor controller 3 is improved. Exemplarily, in this embodiment, the input side component 210 and the motor 1 are sequentially arranged along the width direction Y of the powertrain 200. The output side component 220 is protruding on one side of the input side component 210 toward the motor 1 in the width direction Y of the powertrain 200. In some embodiments, the input side component 210 and the motor 1 are partially overlapped along the width direction Y of the power assembly 200; or, the input side component 210 and the motor 1 are arranged along the length direction Y of the power assembly 200, etc., and the input side component 210 and the output side component 220 can be at least partially overlapped in the width direction Y of the power assembly 200. The positional arrangement relationship between the input side component 210, the output side component 220 and the motor 1 can be adjusted according to actual conditions, and this application does not make specific limitations.

[0058] The powertrain 200 further includes a support frame 9. Along the height direction Z of the powertrain 200, one end of the support frame 9 is connected to the motor controller 3, and the other end of the support frame 9 is connected to the transmission 2. Specifically, in this embodiment, one end of the support frame 9 is connected to the motor controller 3, and the other end is connected to the output side component 220. Therefore, on the one hand, the powertrain 200 supports the motor controller 3 by adding the support frame 9, thereby improving the stability and reliability of the motor controller 3 fixed to the motor 1 and the transmission 2; on the other hand, the support frame 9 is extended in the height direction Z of the powertrain 200, thereby improving the space utilization of the powertrain 200 in the height direction Z and reducing the volume.

[0059] In this embodiment, the support frame 9 is connected between the transmission 2 and the motor controller 3 to improve the support strength of the motor controller 3; compared with the method of connecting the support frame 9 between the motor 1 and the motor controller 3, this embodiment can improve the support strength of the weak support position of the motor controller 3 for the following reasons:

[0060] In the related art, since the outer shell of the motor 1 is generally Figures 1 to 5As shown in the cylindrical shape, the motor controller 3 and the outer shell of the motor 1 partially overlap in the X direction, that is, a part of the motor controller 3 is stacked on the outer shell of the motor 1, so that the outer shell of the motor 1 supports the entire motor controller 3 through the part of the motor controller 3 stacked thereon, that is, the motor controller 3 close to the motor 1 has been sufficiently supported. However, due to the limitation of the size in the Z direction, the motor controller 3 cannot be stacked on the transmission 2, and the transmission 2 generally has difficulty in supporting the motor controller 3; thus, the motor controller 3 forms a structure similar to a cantilever, and only the side close to the motor 1 is effectively supported by the motor 1, and the side close to the transmission 2 does not have sufficient support.

[0061] In this embodiment, the support frame 9 is added and the motor controller 3 is supported by the transmission 2 , thereby improving the support strength of the motor controller 3 .

[0062] The support frame 9 is connected to the output side component 220. In some embodiments, the support frame 9 is installed laterally between the output side component 220 and the motor controller 3. Specifically, the support frame 9 is installed on the side wall of the output side component 220 facing the motor 1. Thereby, the convenience of assembling the motor controller 3 and the transmission 2 is improved, and the stable fixation of the motor controller 3 is achieved, and the structural strength of the powertrain 200 is improved. One end of the support frame 9 is connected to the side wall of the motor controller 3, and the other end of the support frame 9 is connected to the side wall of the output side component 220 away from the input side component 210 in the width direction Y of the powertrain 200. In some embodiments, one end of the support frame 9 is connected to the bottom wall of the motor controller 3, and the other end of the support frame 9 is connected to the side wall of the output side component 220 away from the input side component 210 in the width direction Y of the powertrain 200.

[0063] The motor controller 3 also includes a first edge portion 610 suspended relative to the motor 1 and the transmission 2. A first support mounting portion 191 is provided on the first edge portion 610, and a first support matching portion 110 is provided on the transmission 2. One end of the support frame 9 is connected to the first support mounting portion 191, and the other end of the support frame 9 is connected to the first support matching portion 110. Therefore, on the one hand, based on the additional support frame 9 to support the suspended portion 1052 of the motor controller 3, the connection strength and connection reliability between the motor controller 3 and the motor 1 and the transmission 2 are improved, and the structural strength of the powertrain 200 is improved; on the other hand, it avoids installation difficulties due to irregular structural shapes in a small and crowded space, and improves the assembly efficiency of the support frame 9.

[0064] In some embodiments, the first support mounting portion 191 and the first support matching portion 110 are sequentially arranged along the height direction Z of the powertrain 200, so as to better utilize the corner space between the motor 1 and the transmission 2, and reasonably utilize the space in the height direction Z of the powertrain 200, reduce the overall volume, and facilitate the assembly of the support frame 9 with the motor controller 3 and the transmission 2. Exemplarily, in this embodiment, the first support mounting portion 191 is arranged at the bottom of the motor controller 3 facing the output side component 220. Along the width direction Y of the powertrain 200, the first support matching portion 110 is arranged on the side of the output side component 220 away from the input side component 210, and is located below the first support mounting portion 191.

[0065] The motor controller 3 also includes a second edge portion 620 connected to the first edge portion 610. In the present embodiment, the second edge portion 620 overlaps the motor 1 and the transmission 2. A second support mounting portion 192 is provided on the second edge portion 620, and a second support matching portion 230 that is matched and fixed with the second support mounting portion 192 is provided on the motor 1 and / or the transmission 2. Exemplarily, in the present embodiment, four second support matching portions 230 that are matched and fixed with the second support mounting portion 192 are provided on the motor 1 and the transmission 2. Specifically, two of the second support matching portions 230 are provided on the side of the motor 1 that is away from the transmission 2 in the width direction Y of the powertrain 200, and the other two second support matching portions 230 are provided on the output side component 220 of the transmission 2, thereby improving the connection strength and connection reliability between the motor controller 3 and the motor 1 and the transmission 2, and improving the structural strength of the powertrain 200. In some embodiments, the number and position of the second supporting and fitting parts 230 can be designed according to factors such as the appearance of the motor 1, the transmission 2 and the motor controller 3. For example, the number of the second supporting and fitting parts 230 can be one, two, three, or more than four.

[0066] Exemplarily, in this embodiment, a plurality of first support mounting portions 191 are arranged on the side of the bottom plate 11 away from the cover body 15, and the second support mounting portions 192 are arranged at intervals around the side plate 12, so as to facilitate assembly, have a reasonable layout, and stabilize the center of gravity of the motor controller 3.

[0067] In some embodiments, the second edge portion 620 is only overlapped with the motor 1. The second edge portion 620 is provided with a second support mounting portion 192, and the motor 1 is provided with a second support matching portion 230 matched and fixed with the second support mounting portion 192.

[0068] Optionally, in some embodiments, the motor controller 3 forms an oblique opening 6101 at the first edge portion 610. On the one hand, the stability and reliability of the motor 1 and the transmission 2 supporting the motor controller 3 are improved; on the other hand, it is convenient for the wiring and component assembly of the powertrain 200 at the retracted position; on the other hand, the center of gravity of the motor controller 3 is closer to the geometric center of the powertrain 200, so that the center of gravity of the powertrain 200 is more stable, and the vehicle 1000 runs more smoothly. Specifically, the end of the first edge portion 610 close to the transmission 2 is inclined toward the end of the motor 1 in the width direction Y away from the transmission 2, that is, the first edge portion 610 is arranged at an angle with the length direction X of the motor controller 3, wherein the opening direction of the angle is toward the motor 1, and the angle is an acute angle. In other words, the second edge portion 620 has a corner point 6201 corresponding to the inflection point position of the corner portion 300, and the first edge portion 610 is retracted toward the inflection point. The first edge portion 610 and the second edge portion 620 are connected to form a triangular profile.

[0069] In some embodiments, the connection between the first edge portion 610 and the second edge portion 620 forms two indentations 6102. The second support mounting portion 192 and the second support mounting portion 192 are arranged at the corresponding indentations 6102, so as to facilitate the assembly of the motor housing 4.

[0070] The power assembly 200 also includes a motor housing 4, a transmission housing 5 and an electronic control housing 6. The motor 1 is arranged in the motor housing 4, the transmission 2 is arranged in the transmission housing 5, and the motor controller 3 is arranged in the electronic control housing 6. The motor housing 4 is fixedly matched with the transmission housing 5 so that the motor 1 and the transmission 2 share a housing, thereby reducing the number of housings and the overall volume, and realizing the integrated setting of the power assembly 200, which is conducive to the miniaturization of the power assembly 200. Optionally, the motor housing 4 and the transmission housing 5 are detachably matched and fixed, so as to facilitate the assembly of the motor 1 and the transmission 2 and improve the assembly efficiency. Along the length direction X of the motor controller 3, one end of the electronic control housing 6 is overlapped with the motor housing 4, and one end of the electronic control housing 6 is overlapped with the transmission housing 5.

[0071] Exemplarily, in this embodiment, the motor housing 4 is connected to the transmission housing 5 and forms a T-shaped structure. The transmission housing 5 includes a first housing 51 and a second housing 52. The first housing 51 and the second housing 52 and the motor 1 housing and the second housing 52 form an L-shaped structure. The first housing 51 is connected to the motor 1 housing, and the second housing 52 is connected to the connection between the first housing 51 and the motor 1 housing. The first housing 51 and the motor 1 housing are arranged in sequence along the width direction Y of the motor controller 3, and the first housing 51 and the second housing 52 are arranged in sequence along the length direction X of the motor controller 3. Along the length direction X of the motor controller 3, one end of the electric control housing 6 is overlapped with the motor housing 4, and one end of the electric control housing 6 is overlapped with the second housing 52, thereby improving the integration of the power assembly 200, reducing the volume and mass of the power assembly 200, saving space, and improving power density.

[0072] The input shaft of the transmission 2 is arranged in the first housing 51, and the output shaft of the transmission 2 is arranged in the second housing 52. The second housing 52 includes a first sub-housing 521 and a second sub-housing 522 that is fixed with the first sub-housing 521. The first sub-housing 521 is integrally formed with the motor 1 housing, and the second sub-housing 522 is integrally formed with the first housing 51, thereby simplifying the processing technology of the transmission 2 housing and the motor 1 housing, and improving the assembly efficiency of the transmission 2 housing and the motor 1 housing. Exemplarily, in this embodiment, the first sub-housing 521 and the second sub-housing 522 can be detachably connected together, for example, by screw locking and other methods to cooperate and fix together, so as to facilitate the disassembly and maintenance of the output shaft of the transmission 2. In some embodiments, the first sub-housing 521 and the second sub-housing 522 can also be fixed together by, but not limited to, snap-fitting.

[0073] The electric control housing 6 includes a box body 10 and a cover body 15 fixed with the box body 10. The box body 10 and the cover body 15 can be fixed together by screw locking and other methods. In some embodiments, the box body 10 and the cover body 15 can also be fixed together by but not limited to the way of engagement. The box body 10 includes a first box body part 105, a second box body part 106 and a third box body part 107 arranged in sequence along the width direction Y of the motor controller 3. The first box body part 105 includes a suspended part 1052 overlapped with the abutment part 1051 of the transmission 2 and connected to the abutment part 1051, one end of the support frame 9 is connected to the suspended part 1052, and the other end of the support frame 9 is connected to the transmission 2. The suspended part of the electric control housing 6 is supported by the support frame 9, which ensures the strength of the powertrain 200 and greatly reduces the Z-direction space occupied by the motor controller 3 in the powertrain 200, thereby improving the space utilization rate of the powertrain 200. Along the length direction X of the motor controller 3, one end of the second housing 10 overlaps the motor 1, and the other end of the second housing 10 is suspended relative to the motor 1 and the transmission 2. Along the length direction X of the motor controller 3, the second housing 10 is retracted relative to the first housing 10 toward the motor 1, thereby enhancing the structural strength of the powertrain 200. In some embodiments, the second housing 10 sinks toward the output side component 220 of the transmission 2, so that the motor controller 3 makes full use of the remaining space between the motor 1 and the transmission 2, reducing the volume of the powertrain 200. The third housing 10 overlaps the top of the motor 1. Exemplarily, in this embodiment, the third housing 10 is entirely overlapped above the motor 1. The third housing portion 107 is arranged in a stepped shape with the second housing portion 106.

[0074] Please also read Figure 2 , Figure 6 and Figure 7 , Figure 6 yes Figure 3 An enlarged view of part I in FIG. Figure 7 yes Figure 22 is an enlarged view of the support frame 9 of the powertrain 200 in FIG. The support frame 9 includes a first support plate 910 and a second support plate 920 connected to the first support plate 910. The first support plate 910 is provided with a first mounting position 9101 correspondingly connected to the first support mounting portion 191. The second support plate 920 is provided with a second mounting position 9201 correspondingly connected to the first support matching portion 110, and the number of the first mounting positions 9101 is equal to or greater than the number of the second mounting positions 9201. It should be noted that the term "corresponding connection" means that the first support mounting portion 191 is connected to the first mounting position 9101 in a one-to-one correspondence, that is, the number of the first support mounting portion 191 is equal to and corresponds to the number of the first mounting position 9101. The first support matching portion 110 is also connected to the second mounting position 9201 in a one-to-one correspondence, that is, the number of the first support matching portion 110 is equal to and corresponds to the number of the second mounting position 9201. In some embodiments, the number of the first support mounting portions 191 and the number of the first mounting positions 9101 and the number of the first support matching portions 110 and the number of the second mounting positions 9201 may also be different, thereby improving assembly flexibility. For example, in this embodiment, two first mounting positions 9101 are provided on the first mounting position 9101, and one second mounting position 9201 is provided on the second support plate 920. A fixing hole 1911 is provided at a position of the first support mounting portion 191 corresponding to the first mounting position 9101. A locking member such as a bolt, a rivet, a pin, etc. passes through the first mounting position 9101 and is locked in the fixing hole 1911, thereby achieving a fixed connection between the support frame 9 and the first support mounting portion 191.

[0075] In some embodiments, the support frame 9 further includes a protective plate 930. The protective plate 930 is convexly arranged on the edge of the first support plate 910 and / or the second support plate 920, and forms a protective groove 9301 with the first support plate 910 and / or the second support plate 920, and the notch of the protective groove 9301 is facing away from the transmission 2 in the width direction Y of the power assembly 200, so that in the process of assembling the power assembly 200, it is possible to avoid the locking member 716 locked in the first mounting position 9101 and / or the second mounting position 9201 due to collision with other components in a small and crowded space, thereby improving the reliability of the connection between the support frame 9 and the motor controller 3 and the transmission 2, so that the support frame 9 can better support the motor controller 3. Exemplarily, in this embodiment, the protective plate 930 is bent relative to the first support plate 910 and the second support plate 920. The protective plate 930 is connected to the first support plate 910 and the second support plate 920 and forms a U-shaped protective groove 9301.

[0076] In some embodiments, the support frame 9 further includes a third support plate 940, which is connected to the first support plate 910 and / or the second support plate 920 and is arranged at an angle. The third support plate 940 is provided with a third mounting position 9401 suitable for connecting with a third-party component. Thus, on the one hand, the powertrain 200 further improves the reliability of the connection between the support frame 9 and the motor controller 3 and the transmission 2 by setting mounting positions at different positions of the support frame 9; on the other hand, the structural strength of the support frame 9 is improved, so that the support frame 9 can better support the motor controller 3. The third-party component can be, but is not limited to, the vehicle body 100, an oil pump, an oil cooler, etc.

[0077] Please refer again Figure 2 , the powertrain 200 also includes a DC bus 7. One end of the DC bus 7 is connected to the motor controller 3, and the other end of the DC bus 7 is connected to the energy storage component. In this embodiment, the energy storage component is a battery. In some embodiments, the energy storage component can also be but not limited to a capacitor. The energy storage component can supply power to the powertrain 200 to realize the operation of various electrical components of the powertrain 200. The DC bus 7 is pluggable and plugged into the motor controller 3, thereby facilitating assembly; on the other hand, since the energy storage component is arranged outside the motor controller 3, by setting the DC bus 7, the connection between the energy storage component and the motor controller 3 is more stable. The DC bus 7 can be configured as a single-core structure or a multi-core structure. Exemplarily, in this embodiment, the DC bus 7 includes a positive bus 710 and a negative bus 720. The positive bus 710 and the negative bus 720 are respectively connected to the positive terminal and the negative terminal of the energy storage component. The positive bus 710 and the negative bus 720 can be bundled together by a wire clamp 730 to save space. In some embodiments, the positive busbar 710 and the negative busbar 720 can be integrated into a whole, thereby reducing the external structure and improving the assembly efficiency. The number of the wire clamps 730 can include one or more. The DC busbar 7 also includes a fixed support frame 740 for fixing the DC busbar 7. The fixed support frame 740 can be installed on the wire clamp 730, or on the DC busbar 7 and / or the vehicle body 100. Exemplarily, in this embodiment, the third support plate 940 is convexly arranged on the protective plate 930 of the second support plate 920.

[0078] In the present embodiment, the DC bus 7 is vertically mounted on the motor controller 3. The vertical installation design of the DC bus 7 of the present application reduces the volume of the DC bus 7 by at least 1 / 4 compared with the existing horizontal installation design of the DC bus 7, thereby reducing the total volume of the power assembly 200. It should be noted that the vertical installation of the DC bus 7 on the motor controller 3 means that the positive bus 710 and the negative bus 720 of the DC bus 7 are arranged in sequence along the height direction Z of the motor controller 3 and installed on the motor controller 3. The positive bus 710 and the negative bus 720 are aligned in a direction Z perpendicular to the height direction Z of the motor controller 3, that is, the positive projection of the positive bus 710 in the height direction Z of the motor controller 3 and the positive projection of the negative bus 720 in the height direction Z of the motor controller 3 overlap.

[0079] See also Figure 2 , Figure 8 and Fig. 9 , Figure 8 yes Figure 2 A schematic diagram of the structure of the motor controller 3 of the powertrain 200 of the vehicle 1000; Fig. 9 yes Figure 8 The motor controller 3 in the figure omits the cover 15 and the three-phase cover plate 16. The motor controller 3 includes an electric control housing 6, a shielding plate 23, a control board 22 and a first plug connector 31. The shielding plate 23, the control board 22 and the first plug connector 31 are all arranged in the electric control housing 6. The electric control housing 6 and the shielding plate 23 form a first shielding cabin 103. The first plug connector 31 is at least partially accommodated in the first shielding cabin 103. The first plug connector 31 is connected to the control board 22.

[0080] The motor controller 3 provided in the present application forms a first shielding cabin 103 between the electric control housing 6 and the shielding plate 23, and the first connector 31 is at least partially accommodated in the first shielding cabin 103. The space in the inner cavity of the electric control housing 6 and the shielding performance of the shielding plate 23 itself are reasonably utilized to achieve a good electromagnetic isolation effect between the first connector 31 and other components except the control board 22, so as to simplify the structural design of the first shielding cabin 103; at the same time, it also avoids setting an additional shielding structure for the first connector 31, thereby reducing the volume of the motor controller 3.

[0081] In the embodiment of the present application, the first connector 31 is electromagnetically isolated from other components other than the control board 22, which mainly means that the first connector 31 needs to be electromagnetically isolated from the drive board 21. It should be noted that in the present embodiment, the first connector 31 is a low-voltage connector connected to the control board 22.

[0082] It should be noted that the high voltage and low voltage referred to in this embodiment are relative. The difference between high voltage components and low voltage components mainly lies in the difference in their working voltages, and the working voltage of high voltage components is higher than that of low voltage components. For example, relative to the drive board 21, the drive board 21 includes a low voltage side and a high voltage side, the low voltage side of the drive board 21 is connected to the control board 22, the low voltage side of the drive board 21 is connected to the power module, and the power module is connected to the motor 1, wherein the working voltage of the motor 1 is higher than that of the control board 22.

[0083] The shielding plate 23 and the control board 22 are arranged in sequence along a first direction, wherein the first direction is a direction perpendicular to the plane of the shielding plate 23 and / or the control board 22, and parallel to the height direction Z of the motor controller 3, and the first connector 31 is located on the side of the control board 22 facing the shielding plate 23, thereby avoiding the problem of the first connector 31 being arranged on the control board 22 facing away from the shielding plate 23 and increasing the space occupied by the first connector 31 and the connection line with the first connector 31 in the height direction Z of the motor controller 3, thereby reducing the volume of the motor controller 3 and making it more convenient to form the first shielding cabin 103 between the shielding plate 23 and the electrical control housing 6.

[0084] The motor controller 3 also includes a driving board 21. The driving board 21, the shielding plate 23 and the control board 22 are sequentially arranged along the height direction Z of the motor controller 3, so that the control board 22, the driving board 21, the shielding plate 23 and the first connector 31 have a high degree of integration, thereby reducing the power density of the motor controller 3. The driving board 21 and the control board 22 referred to in this embodiment have different operating voltages, and electromagnetic isolation is required between the two. In this embodiment, the driving board 21, the shielding plate 23 and the control board 22 are arranged so that the shielding plate 23 can also play the function of electromagnetically isolating the driving board 21 and the control board 22, that is, the shielding plate 23 is reused, and can be used as a shielding structure between the driving board 21 and the control board 22, and can also be used as a shielding structure between the first connector and other components.

[0085] For example, in this embodiment, the driving board 21 or the control board 22 is roughly a rectangular thin plate, and the length direction X (i.e., the second direction) of the motor controller 3 refers to the extension direction of the driving board 21 or the control board 22, that is, the long side direction of the driving board 21 or the control board 22; the width direction Y (i.e., the third direction) of the motor controller 3 refers to the direction perpendicular to the length direction X of the motor controller 3, for example, the short side direction of the driving board 21 or the control board 22; the height direction Z (i.e., the first direction) of the motor controller 3 refers to the direction perpendicular to the plane where the driving board 21, the shielding board 23 or the control board 22 are located. The plane where the driving board 21 is located, the plane where the shielding board 23 is located, and the plane where the control board 22 is located are roughly parallel.

[0086] It should be noted that Figure 8The purpose is only to schematically describe the arrangement of the electric control housing 6, the drive board 21, the shielding board 23, the control board 22 and the first connector 31, and it is not to specifically limit the connection position, connection relationship and specific structure of each component. Figure 8 The structure of the motor controller 3 is only shown in the embodiment of the present application, and does not constitute a specific limitation on the motor controller 3. In other embodiments of the present application, the motor controller 3 may include Figure 1 More or fewer components, or a combination of certain components, or different components, such as the motor controller 3 may also include but are not limited to a buffer structure or connecting cables, etc.

[0087] The control board 22 is located on the side of the shielding plate 23 facing away from the box body 10. The control board 22 can be constructed to have, but is not limited to, a vehicle control function and a motor 1 control function. For example, the control board 22 can have, but is not limited to, driving torque control, optimal control of braking energy, energy management of the vehicle, maintenance and management of the vehicle 1000 network, fault diagnosis, processing and vehicle 1000 status monitoring, and control functions for converting AC and DC, etc. In some embodiments, the control board 22 can only have the motor 1 control function, that is, the vehicle 1000 can also include a main circuit board with vehicle control, and the main circuit board is connected to the control board 22.

[0088] The shielding plate 23 is arranged between the control board 22 and the driving board 21, so as to improve the shielding effect of the control board 22, and can control the signal of the electrical device and improve the operation stability. The shielding plate 23 can separate the control board 22 from the driving board 21, that is, the driving board 21 and the control board 22 are respectively arranged on opposite sides of the shielding plate 23. The shielding plate 23 can be a metal part, and the shielding plate 23 can accelerate the attenuation of electronic noise, prevent the driving board 21 from interfering with the control board 22, and the signal transmission reliability of the control board 22 is high. Moreover, the shielding plate 23 can also be used to support the control board 22, thereby fixing the control board 22 in the position of the motor 1.

[0089] The driving board 21 is located on the side of the shielding plate 23 facing the box body 10. The driving board 21 is connected to the control board 22, and the control board 22 controls the motor 1 of the vehicle 1000 through the driving board 21. For example, the control board 22 sends a control signal to the driving board 21, and the driving board 21 can drive the motor 1 to run at different speeds according to the control signal. The control board 22 can receive the feedback signal when the motor 1 of the vehicle 1000 is running through the communication module, and adjust the speed control of the motor 1 in time. Among them, the control board 22 and the driving board 21 can be connected by conductive parts such as wires or connectors.

[0090] The motor controller 3 further includes a three-phase adapter 40, a Hall element 50, an IGBT module 60 (Insulated Gate Bipolar Transistor), a DC bus capacitor 71 and a filter 72. It can be understood that the DC power provided by the battery flows from the DC bus capacitor 71 to the IGBT module 60 through the DC bus 7, and the pulse width modulation of the IGBT module 60 converts the input DC power into AC power of the frequency required by the motor 1. The AC power output by the IGBT module 60 is output to the motor 1 through the three-phase adapter 40 to drive the motor 1 to operate.

[0091] The housing 10 and the cover 15 together form a housing 102. The drive board 21, the shielding board 23 and the control board 22, the three-phase adapter 40, the Hall element 50, the IGBT module 60, the DC bus capacitor 71 and the filter 72 are all arranged in the housing 102. Therefore, on the one hand, only one motor housing 4 is needed to simultaneously install the drive board 21, the shielding board 23 and the control board 22, the three-phase adapter 40, the Hall element 50, the IGBT module 60, the DC bus capacitor 71 and the filter 72. The number of motor housings 4 is reduced and the overall volume is reduced, which can realize the integrated setting of the motor housing 4, which is conducive to the miniaturization of the motor controller 3. On the other hand, the relevant functional components are arranged as much as possible in the limited internal space of the electric control housing, so that the volume of the whole machine is reduced. The DC bus capacitor 71 and the filter 72 are accommodated in the first housing 105, and the three-phase adapter 40 is accommodated in the second housing 106. The driving board 21, the IGBT module 60 and the Hall element 50 are accommodated in the second housing 106. The shielding board 23 and the control board 22 are accommodated in the first housing 105 and the second housing 106, that is, the shielding board 23 and the control board 22 span the first housing 105 and the second housing 106.

[0092] For example, in this embodiment, the control board 22 is fixedly connected to the shielding plate 23, and the shielding plate 23 is fixedly connected to the box body 10, so as to improve the reliability of the electrical connection of the control board 22. The control board 22 is arranged between the box cover and the shielding plate 23, so that the box cover and the shielding plate 23 can provide an electromagnetic shielding effect for the control board 22, so that the signal fluctuation received and transmitted by the control board 22 is small, and the EMC (Electromagnetic Compatibility, battery compatibility) performance of the motor controller 3 is improved. The drive board 21 is fixedly connected to the IGBT module 60, and the IGBT module 60 is fixedly connected to the box body 10, so that the safety of the electrical connection between the drive board 21 and the IGBT module 60 is higher.

[0093] In some embodiments, the three-phase adapter 40, the Hall element 50, the IBGT module 60 and the driving board 21 are integrated and connected to form a first integrated component 20, and the DC bus capacitor 71 and the filter 72 are integrated and connected to form a second integrated component 70. The first integrated component 20 and the second integrated component 70 are both fixed on the box 10 and arranged along the width direction Y of the motor controller 3, thereby realizing a high degree of integration of the motor controller 3, facilitating overall control, and improving the production and assembly efficiency.

[0094] The shielding plate 23 includes a shielding wall 231. The shielding wall 231 extends along the height direction Z of the motor controller 3. The shielding wall 231 and the electric control housing 6 form a first shielding cabin 103, thereby improving the shielding effect of the first shielding cabin 103. At the same time, the setting of the shielding wall 231 makes the shielding wall 231 and the first shielding cabin 103 overlap in the height direction Z, further reducing the volume of the motor controller 3, improving the integration of the internal structure of the electric control housing 6, and simplifying the structural setting of the motor controller 3. The shielding wall 231 arranged around the first plug-in connector 31 is arranged at the position of the shielding plate 23 corresponding to the first plug-in connector 31. Exemplarily, in this embodiment, the shielding wall 231 can be configured as a semi-enclosed structure, for example, the shielding wall 231 is arranged around the first plug-in connector 31 in a semi-enclosed manner. In some embodiments, the shielding wall 231 can also be configured as a fully enclosed structure, for example, the shielding wall 231 is arranged around the first plug-in connector 31 in a fully enclosed manner.

[0095] Please also read Figure 5 , Figure 8 , Fig.10 and Fig.11 , Fig.10 yes Figure 8 A top view of the motor controller 3 omitting the cover 15, the three-phase cover plate 16 and the control board 22; Fig.11 yes Figure 8 The motor controller 3 in the figure omits the top view of the cover body 15, the three-phase cover plate 16, the control board 22 and the shielding plate 23. By way of example, in the present embodiment, the shielding plate 23 is concave at the position corresponding to the first connector 31 to form a notch 2301. By way of example, in the present embodiment, the surface of the shielding plate 23 facing the drive board 21 and the surface facing the control board 22 are both provided with a shielding wall 231 extending outwardly along the height direction Z of the motor controller 3 at the notch 2301, thereby realizing the formation of a closed first shielding cabin 103 between the circuit board, the control board 22 and the box body 10, better protecting the first connector 31 from interference from high voltage, so that the motor 1 meets the EMC standard. In some embodiments, the surface of the shielding plate 23 facing the drive board 21 is provided with a shielding wall 231 extending outwardly along the height direction Z of the motor controller 3 at the notch 2301, so as to isolate the first connector 31 from high-voltage devices such as the drive board 21, the IGBT module 60 and the three-phase adapter 40.

[0096] A through hole 131 exposing the first connector 31 is provided on the side of the box 10 away from the cover 15, and the through hole 131 is connected to the first shielding cabin 103, so that the plug-in direction of the first connector 31 is parallel to the height direction Z of the motor controller 3, saving space and facilitating assembly. In this embodiment, the first connector 31 is passed through the side of the box 10 away from the cover 15 along the height direction Z of the motor controller 3. The first connector 31 is vertically installed on the box 10 along the height direction Z of the motor controller 3. Compared with the existing first connector 31 horizontally installed on the side wall of the box 10 perpendicular to the height direction Z, the structural design of the first connector 31 of the present application eliminates the assembly space reserved for the control board 22, thereby improving space utilization.

[0097] Specifically, the electric control housing 6 includes a side panel 12. The side panel 12 extends along the height direction Z of the motor controller 3. The first shielding cabin 103 is at least formed by the side panel 12 and the shielding wall 231. Exemplarily, in this embodiment, the electric control housing 6 also includes a bottom plate 11, and the side panel 12 is arranged around the edge of the bottom plate 11. The side panel 12 includes a first side wall 121 and a support wall 123 extending outward from the first side wall 121. The support wall 123 is located on the side of the shielding plate 23 away from the control plate 22, and the support wall 123 is provided with a through hole 131. The first shielding cabin 103 is at least formed by the support wall 123 and the shielding wall 231. For example, in some embodiments, the first shielding cabin 103 is annular, and the shielding wall 231 and the support wall 123 are enclosed to form the first shielding cabin 103. In other embodiments, the surface of the support wall 123 facing the control board 22 is concave to form a positioning groove 133, and the shielding wall 231 is at least partially accommodated in the positioning groove 133, thereby improving assembly efficiency and shielding effect. The shielding wall 231 and the groove wall of the positioning groove 133 enclose the first shielding cabin 103.

[0098] In this embodiment, the first connector 31 is arranged on the side of the control board 22 facing the drive board 21. The support wall 123 and the first side wall 121 form a space 132 outside the box 10, which provides an operating space for the connection between the first connector 31 and external components, facilitates wiring and assembly, and improves space utilization. In some embodiments, the first connector 31 can also be arranged outside the edge of the control board 22, for example, the first connector 31 and the control board 22 are arranged flat. The shielding wall 231 is located between the control board 22 and the box 10, and forms a first shielding cabin 103 with the control board 22 and the box 10. Specifically, the shielding wall 231 is located between the control board 22 and the support wall 123, and forms a first shielding cabin 103 with the control board 22 and the support wall 123. As a result, on the one hand, the first connector 31 can isolate the interference caused by high-voltage devices such as the drive board 21, the IGBT module 60, and the three-phase adapter 40 during operation, thereby improving the electromagnetic compatibility of the motor 1.

[0099] In some embodiments, the side plate 12 further includes a first edge 124 disposed on the outer edge of the support wall 123, a second side wall 122, and a second edge 125 disposed at one end of the second side wall 122 facing the first side wall 121. The first shielding cabin 103 is at least formed by the support wall 123, the first edge 124, the second edge 125, and the shielding wall 231.

[0100] The first edge 124 is also extended along the area of ​​the first side wall 121 outside the support wall 123, and the first edge 124 is matched and connected with the second edge 125. In the present embodiment, the first edge 124 and the second edge 125 are fixedly connected together by screws. In some embodiments, the first edge 124 and the second edge 125 can also be fixedly connected together by but not limited to a snap-on method, a welding method or other methods. The electric control housing 6 also includes a top plate 14 arranged opposite to the bottom plate 11. The bottom plate 11, the first side wall 121, the support wall 123 and the first edge 124 are connected to form the box body 10. The top plate 14, the second side wall 122 and the second edge 125 are connected to form a cover body 15.

[0101] In some embodiments, the motor controller 3 also includes a second connector 33 connected to the control board 22, and the first connector 31 and the second connector 33 are respectively connected to the two opposite sides of the control board 22 in the second direction, so that the wiring of the motor controller 3 is reasonable and space is saved. Among them, the second direction is a direction parallel to the plane where the shielding plate 23 and / or the control board 22 are located, and is parallel to the length direction X of the motor controller 3. Specifically, the control board 22 is roughly rectangular, and the second direction is the long side direction in the plane where the control board is located. The second connector 33 passes through the box 10 and is connected to the motor 1. The second connector 33 is used to detect the angular displacement and angular velocity of the motor 1. It should be noted that in this embodiment, the second connector 33 is a rotary transformer connector connected to the control board 22.

[0102] A second shielding cabin 104 for accommodating the second connector 33 is provided in the electric control housing 6, so as to isolate the second connector 33 from high-voltage devices such as the drive board 21, the IGBT module 60 and the three-phase adapter 40, and better protect the second connector 33 from interference from high voltage, so that the motor 1 meets the EMC standard. Exemplarily, in this embodiment, a partition 1041 arranged around the second connector 33 is provided at the position of the box body 10 corresponding to the second connector 33. The partition 1041 can be configured as a semi-enclosed structure, for example, the partition 1041 is arranged around the second connector 33 in a semi-enclosed manner. In some embodiments, the partition 1041 can also be configured as a fully enclosed structure, for example, the partition 1041 is arranged around the second connector 33 in a fully enclosed manner. The partition 1041, the box body 10 and the cover body 15 are enclosed to form the second shielding cabin 104. In some other embodiments, the box body 10 is concave to form the second shielding cabin 104. The motor controller 3 also includes a cable 34 connecting the second connector 33 and the control board 22. The cable 34 is located outside the second shielding cabin 104. In some embodiments, the side plate 12 of the box body 10 and the shielding plate 23 are spaced to form a wiring channel 301, and the cable 34 is located in the wiring channel 301. The second connector 33 is arranged in the third box body part 107. The third box body part 107 is close to the motor 1, thereby shortening the connection line between the second connector 33 and the three-phase adapter 40 and the motor 1, and improving space utilization.

[0103] The second connector 33 can be fixed to the housing 10 to stabilize the structure of the motor controller 3. The real-time working state of the motor 1 can be detected through the second connector 33, and the working state is fed back to the control board 22, so that the control board 22 can timely adjust the angular displacement and angular velocity of the motor 1 through the drive board 21, so that the vehicle 1000 can run smoothly. For example, in this embodiment, the second connector 33 is connected to the control board 22 through a cable 34. The motor controller 3 also includes a fixing seat 35 for fixing the second connector 33, and the fixing seat 35 is installed in the area outside the corresponding shielding plate 23 of the housing 10, so as to facilitate the assembly of the second connector 33, provide the assembly efficiency of the motor 1, and improve the compactness of the overall structure of the motor 1, saving space utilization. The fixing seat 35 is provided with a mounting structure, and the fixing seat 35 is fixed to the housing 10 through the mounting structure. The mounting structure includes a mounting column and a locking screw, and the mounting structure can also be, but not limited to, a fixing structure such as a buckle. The fixing seat 35 can also be fixed to the housing 10 by bonding or welding, etc., which is not specifically limited in this application. The fixing seat 35 includes a first mounting frame 351 installed in the second shielding cabin 104 and a second mounting frame 352 arranged outside the second shielding cabin 104. The second connector 33 is installed on the first mounting frame 351. The second mounting frame 352 is provided with a restraining structure 353 for restraining the cable 34, so that the cable 34 can be effectively restrained to prevent the cable 34 from shaking, improve the connection stability and reliability, and reduce the space used for the fixed line of the cable 34, thereby improving the practicality of the fixing seat 35 and improving the cable bundling effect. The third box body 107 protrudes outward toward one side of the motor 1 to install the second shielding cabin 104 and the fixing seat 35, thereby providing space utilization of the motor controller 3.

[0104] The three-phase adapter 40, the Hall element 50 and the IGBT module 60 are all located on the side of the control board 22 away from the shielding plate 23, and are connected and arranged in sequence along the third direction. The third direction is a direction perpendicular to the first direction and the second direction, and is parallel to the width direction Y of the motor controller 3. The three-phase adapter 40 and the second connector 33 are arranged on the same side of the electrical control housing 6 in the width direction Y of the motor controller 3. The three-phase adapter 40 is electromagnetically isolated from the second connector 33 by the second shielding cabin 104. In this way, on the one hand, the three-phase adapter 40 is arranged outside the second shielding cabin 104, so that the second connector 33 can isolate high-voltage interference, improve the EMC performance of the motor 1, and prevent the second connector 33 from being interfered and failing; on the other hand, the three-phase adapter 40 and the second connector 33 are connected to the motor 1 and are arranged close to the motor 1, thereby shortening the connection distance, making the wiring reasonable and regular, improving the connection stability and reliability, and saving space. The Hall element 50 is connected between the three-phase adapter 40 and the IGBT module 60, so that the output end of the IGBT module 60 is connected to the three-phase copper bus 42, and AC power can be output to the motor 1. The drive board 21 is fixed on the IGBT module 60, and is stacked with the IGBT module 60 in the first direction (i.e., the height direction Z of the motor controller 3), so that the drive board 21 can collect high-voltage signals and perform control; on the other hand, the rationality of the interface arrangement of the second connector 33, the three-phase adapter 40 and the first connector 31 on the electric control housing 6 is improved, saving space.

[0105] The IGBT module 60 is located on the side of the drive board 21 facing the housing 10, and is used to support the drive board 21, thereby fixing the position of the drive board 21 in the motor 1. Along the width direction Y of the motor controller 3, one end of the IGBT module 60 is connected to the DC bus capacitor 71, and the other end of the IGBT module 60 is connected to the three-phase adapter 40 through the Hall element 50, so that the IGBT module 60 provides AC power to the motor 1 through the three-phase adapter 40. The three-phase adapter 40 passes through the Hall element 50. The Hall element 50 can detect the current and voltage input to the motor 1, and the drive board 21 can transmit the signal detected by the Hall element 50 to the control board 22, so that the control board 22 can adjust the control of the motor 1 in time and improve the control accuracy. For example, in this embodiment, the three-phase adapter 40 includes an adapter seat 41, a three-phase copper busbar 42 and a magnetic ring 43. The adapter seat 41 is connected to the Hall element 50. The three-phase copper busbar 42 is arranged on the side of the adapter seat 41 away from the Hall element 50. The magnetic ring 43 is sleeved on the three-phase copper busbar 42 and fixed to the three-phase copper busbar 42 along the width direction Y of the motor controller 3. An opening 1101 is provided at the position of the bottom plate 11 of the box body 10 corresponding to the position of the three-phase copper busbar 42 to realize the wiring connection between the three-phase copper busbar 42 and the motor 1. An operating hole 151 connected to the accommodating cavity 102 is provided at the position of the cover body 15 corresponding to the three-phase adapter 40, so as to facilitate the fixing or disassembly of the three-phase adapter 40 and the motor 1, and to facilitate the maintenance or testing of the three-phase adapter 40. The motor controller 3 also includes a three-phase cover plate 16, which is fixed to the cover body 15 and covers the operating hole 151. On the one hand, the dustproof and waterproof protection performance of the motor controller 3 is improved; on the other hand, it prevents the electronic devices in the motor controller 3 from interfering with the electronic devices outside the motor controller 3. The IGBT module 60 includes an output copper busbar 62, and the IGBT module 60 is connected to the Hall element 50 via the output copper busbar 62; on the other hand, it provides an operating space for the assembly and disassembly of the three-phase copper busbar 42, improves the assembly and disassembly efficiency, and improves the reliability of the fixed connection.

[0106] When assembling the first integrated component 20, the magnetic ring 43 is sleeved on the three-phase copper busbar 42. Then, the three-phase adapter 40 and the IGBT module 60 are installed on the Hall element 50, and the drive board 21 is fixed on the IGBT module 60. Finally, the first integrated component 20 is fixed on the box 10.

[0107] Please also read Figure 12 to Figure 14 , Fig.12 yes Figure 8 A bottom view of the motor controller 3 omitting the cover 15 and the three-phase cover plate 16; Fig.13 yes Fig.12 A cross-sectional view of the motor controller 3 along line AA; Fig.14 yes Fig.13The motor controller 3 also includes a sampling structure 713. The sampling structure 713 is connected to the DC bus capacitor 71 and the control board 22 respectively. The DC bus capacitor 71 and the drive board 21 are arranged on the same side of the control board 22. The DC bus capacitor 71 is arranged on one side of the control board 22 in the height direction Z of the motor controller 3. The sampling structure 713 extends from the DC bus capacitor 71 toward one end of the control board 22 and supports the control board 22. Therefore, based on extending the sampling structure 713 from the DC bus capacitor 71 toward one end of the control board 22 and supporting the control board 22, on the one hand, the energy storage component can input electrical energy into the DC bus capacitor 71 through the DC bus 7, and when the battery of the battery pack supplies power to the motor controller 3, the control board 22 can monitor the current and voltage conditions to achieve high-voltage sampling of the battery, thereby improving the accuracy and reliability of high-voltage monitoring; on the other hand, the assembly difficulty of the DC bus capacitor 71 and the control board 22 is reduced, the number of structural parts and electronic materials is reduced, and the space utilization rate is improved.

[0108] The DC bus capacitor 71 is located on the side of the shielding plate 23 facing the housing 10. Specifically, the shielding plate 23 and the control board 22 are sequentially arranged along the height direction Z of the motor controller 3, and the DC bus capacitor 71 is located on the side of the shielding plate 23 away from the control board 22, thereby avoiding the DC bus capacitor 71 from interfering with the control board 22 and improving the signal transmission reliability of the control board 22. Exemplarily, in this embodiment, the DC bus capacitor 71 includes a capacitor body 711 and a capacitor support portion 712 protruding from the capacitor body 711, the shielding plate 23 is provided with a through hole 2302 for the capacitor support portion 712 to pass through, the sampling structure 713 extends from one end of the capacitor support portion 712 away from the capacitor body 711, and the control board 22 and the sampling structure 713 are fixed to the capacitor support portion 712 by a locking member 716. Therefore, on the one hand, the connection distance between the DC bus capacitor 71 and the control board 22 is shortened, so that the motor 1 is more compact in the height direction Z, and the DC bus capacitor 71 can better support the control board 22; on the other hand, it is convenient to disassemble and assemble the control board 22, and improve the connection reliability and stability between the control board 22 and the DC bus capacitor 71; on the other hand, the design of the via 2302 can also provide positioning for the assembly of the DC bus capacitor 71, thereby improving the assembly efficiency and disassembly efficiency.

[0109] Specifically, the circuit board is provided with an opening 1101, and the capacitor support portion 712 is provided with a locking hole. The locking member 716 passes through the through hole 131 and is locked in the locking hole, thereby realizing the connection between the circuit board and the DC bus capacitor 71. The locking member 716 is blocked by the opening 1101, thereby preventing the locking member 716 from damaging the control board 22 and the DC bus capacitor 71 during the locking process. Exemplarily, in this embodiment, the locking member 716 is configured as a screw. An installation space for installing a locking nut is provided on the capacitor support portion 712, so that the screw can be screwed with the locking nut. The nut is screwed with a locking hole. In some embodiments, the locking hole can also be directly set in the installation space. In some embodiments, the locking member 716 can also be configured as a buckle or other locking structure; or, the control board 22 and the sampling structure 713 are connected together by welding.

[0110] The three-phase adapter 40, the driving board 21 and other high-voltage equipment in the motor controller 3 will generate a large amount of electromagnetic interference, thereby reducing the stability of the motor controller 3, and even failing to meet the EMC standard. In order to improve the EMC performance of the motor controller 3, the motor controller 3 also includes the above-mentioned filter 72, which can stabilize and filter the DC power provided by the battery through the filter 72, so that the DC power flowing to the IGBT module 60 fluctuates less, avoiding the current fluctuation being too large to damage the IGBT module 60, improving the service life of the IGBT module 60, and improving the stability of the operation of the motor 1. The filter 72 and the sampling structure 713 are arranged at the two ends of the DC bus capacitor 71 along the length direction X (i.e., the second direction) of the motor controller 3, and are located on different sides of the DC bus capacitor 71, thereby optimizing the structural design of the motor controller 3, making the motor controller 3 more miniaturized. Specifically, the sampling structure 713 is arranged at the front end side of the DC bus capacitor 71 along the length direction X of the motor controller 3, and is located at the end face of the DC bus capacitor 71 facing the control board 22. The filter 72 is arranged at the rear end side of the DC bus capacitor 71 along the length direction X of the motor controller 3, and is located on the end face of the DC bus capacitor 71 facing the side panel 12, thereby providing an operating space for the straight bus to pass through the box 10 and be plugged into the filter 72, facilitating assembly, reasonable wiring, and saving space.

[0111] Please also read Figure 8 , Fig.15 and Fig.16 , Fig.15 yes Figure 8 A partial cross-sectional view of the motor controller 3 and the DC bus 7; Fig.16 yes Figure 8Detailed description of the invention The filter 72 of the motor controller 3 in the embodiment of the present invention is shown in FIG. The filter 72 includes a filter body 721 and a first magnetic ring 722 and a second magnetic ring 723 disposed in the filter body 721. The material of the first magnetic ring 722 is different from the material of the second magnetic ring 723. In the present embodiment, the first magnetic ring 722 and the second magnetic ring 723 are disposed on both sides of the filter body 721 along the width direction Y (i.e., the third direction) of the motor controller 3. In some embodiments, the first magnetic ring 722 and the second magnetic ring 723 can be disposed at other positions of the filter body 721 according to actual conditions, such as along both sides of the length direction Y of the motor controller 3, etc., which is not specifically limited in the present application. The filter 72 also includes an X capacitor 724 and two Y capacitors 725, and the two Y capacitors 725 and the X capacitor 724 are located between the DC bus capacitor 71 and the filter body 721. Therefore, on the one hand, since the filter 72 includes the first magnetic ring 722 and the second magnetic ring 723 made of different materials, it is possible to filter different frequency bands, thereby expanding the filtering range of the filter 72 and improving the filtering effect of the filter 72; on the other hand, the X capacitor 724 is used to suppress differential mode interference and provide low impedance for differential mode electromagnetic interference between positive and negative, so that the differential mode electromagnetic interference flows back to the control board 22, and the Y capacitor 725 is used to suppress common mode interference and provide a low impedance loop for common mode electromagnetic interference, so that the common mode electromagnetic interference flows back to the control board 22; On the other hand, the filter 72 is provided with a first magnetic ring 722 and a second magnetic ring 723 of different materials, and two Y capacitors 725 are connected in parallel with the X capacitor 724, so that the filter 72 can constitute a two-stage filter 72, improve the filtering effect, and meet the EMC performance of the motor controller 3; on the other hand, the first magnetic ring 722, the second magnetic ring 723, the X capacitor 724 and the two Y capacitors 725 are arranged in the filter base 721 and integrated into a whole, thereby improving the integration of the filter 72, saving space layout and improving disassembly and assembly efficiency.

[0112] In the present embodiment, the two Y capacitors 725 and the X capacitor 724 can be connected in parallel. The filter 72 also includes a connecting plate 726 connecting the two Y capacitors 725 and the X capacitor 724. The two Y capacitors 725 and the X capacitor 724 are integrated into an E-shaped structure through the connecting plate 726, thereby improving the efficiency of disassembly and assembly. The connecting plate 726 and the two Y capacitors 725 and the X capacitor 724 can be fixedly connected together by, but not limited to, welding, locking structures, etc. In some embodiments, the two Y capacitors 725 and the X capacitor 724 can also be connected in series.

[0113] The first magnetic ring 722 is used to eliminate low-frequency interference on the DC side, and the second magnetic ring 723 is used to eliminate high-frequency interference on the DC side. Exemplarily, in this embodiment, the first magnetic ring 722 is a ferrite magnetic ring 43, and the second magnetic ring 723 is a nano-amorphous magnetic ring 43. The nano-amorphous magnetic ring 43 is greatly affected by the frequency, so the filtering effect on the low frequency band is better, while the ferrite magnetic ring 43 is less affected by the frequency, so the filtering effect on the high frequency band is better. It should be noted that the materials of the first magnetic ring 722 and the second magnetic ring 723 can be set according to the filtering effect required by the motor controller 3, and this application does not make specific limitations.

[0114] The electric control housing 6 is provided with a DC bus interface 101, which is extended along the height direction Z of the motor controller 3 to reduce the space occupied by the DC bus 7 in the height direction Z of the vehicle 1000. Exemplarily, in this embodiment, the first magnetic ring 722 is in an 8-shape. The second magnetic ring 723 is in an O-shape. The first magnetic ring 722 is provided with two first jacks 7221 in the height direction Z of the motor controller 3. The second magnetic ring 723 is provided with two second jacks 7231, and the second jacks 7231 are connected to the DC bus interface 101 and the second jacks 7231, and are arranged opposite to the DC bus interface 101. The motor controller 3 also includes a transfer copper bus 714. The transfer copper bus 714 extends from the DC bus capacitor 71 and passes through the first jack 7221. The DC bus 7 passes through the DC bus interface 101 and the second jack 7231, and is connected to the transfer copper bus 714, thereby realizing the connection between the DC bus capacitor 71 and the DC bus 7. The DC bus 7 also includes a bus copper bar 750, which is arranged at the end of the DC bus 7. The bus copper bar 750 passes through the DC bus interface 101 and the second magnetic ring 723 in sequence and is connected to the transfer copper bar 714. The bus copper bar 750 includes a positive bus copper bar and a negative bus copper bar. The DC bus interface includes a positive bus interface and a negative bus interface. The transfer copper bar 714 includes a positive transfer copper bar 714 and a negative transfer copper bar 714. The positive bus copper bar passes through the positive bus interface and is connected to the positive transfer copper bar 714, and the negative bus copper bar passes through the negative bus interface and is connected to the negative transfer copper bar 714. The positive bus copper bar and the negative bus copper bar are arranged at intervals along the height direction Z of the motor controller 3 and inserted into the first jack 7221. The positive transfer copper bar 714 and the negative transfer copper bar 714 are arranged at intervals along the height direction Z of the motor controller 3, and are respectively inserted into the two second jacks 7231. Since the DC bus 7 is connected to the transfer copper bar 714 in the height direction Z of the motor controller 3, the space occupied by the filter 72 in the length direction X of the motor controller 3 is reduced, and the overall volume of the filter 72 is reduced.

[0115] A through hole 1201 penetrating the accommodating chamber 102 is provided at the position of the side plate 12 of the box body 10 corresponding to the position of the filter 72, so as to facilitate the fixing or disassembly of the transfer copper bar 714 and the bus copper bar 750, and to facilitate the maintenance or testing of the transfer copper bar 714 and the DC bus 7 copper bar. Two alignment holes 7211 are provided on the side of the filter seat body 721 away from the linear bus capacitor. The two alignment holes 7211 are located at the connection between the bus copper bar 750 and the transfer copper bar 714, and are arranged opposite to the through hole 1201. The two alignment holes 7211 are arranged in sequence along the height direction Z of the motor controller 3. The motor controller 1 also includes a busbar cover 17, which is fixed to the box body 10 and covers the through hole 1201. On the one hand, it improves the dustproof, waterproof and other protection performance of the motor controller 3; on the other hand, it prevents the electronic components inside the motor controller 3 from interfering with the electronic components outside the motor controller 3; on the other hand, it provides an operating space for the assembly and disassembly of the DC bus 7, improves the disassembly efficiency, and improves the reliability of the fixed connection.

[0116] The motor controller 3 also includes a DC mounting base 80 connecting the DC bus capacitor 71 and the IGBT module 60. Specifically, the motor controller 3 also includes a DC output copper bar 715 arranged on the DC bus capacitor 71, and the IGBT module 60 includes an input copper bar 61, and the input copper bar 61 and the DC output copper bar 715 are fixed on the DC mounting base 80, thereby realizing the connection between the DC bus capacitor 71 and the IGBT module 60. The input copper bar 61 and the DC output copper bar 715 can be fixed on the DC mounting base 80 by locking screws. The input copper bar 61 and the DC output copper bar 715 can also be fixedly connected together by welding or other methods, which is not specifically limited in this application. The transfer copper bar 714 extends from the DC bus capacitor 71 toward the IGBT module 60, and is arranged on the same side of the DC bus capacitor 71 as the transfer copper bar 714, thereby shortening the connection line and improving space utilization.

[0117] Please also read Figure 2 , Figure 8 , Fig.12 , Fig.17 and Fig.18 , Fig.17 yes Fig.12 A cross-sectional view of the motor controller 3 along line BB; Fig.18 yes Fig.12The motor controller 3 is a cross-sectional view along the CC line in FIG. The motor controller 3 also includes an IGBT heat dissipation pipeline 91, and the IGBT heat dissipation pipeline 91 includes a first channel 911, a second channel 912, and a third channel 913 connected between the first channel 911 and the second channel 912. The first channel 911 and the second channel 912 are respectively connected to the outside, and the third channel 913 is formed between the box body 10 and the IGBT module 60. Exemplarily, in this embodiment, the IGBT module 60 includes an IGBT plate body 65 and a heat dissipation pin 66 arranged on the surface of the IGBT plate body 65 away from the driving plate 21, so as to increase the contact area between the IGBT module 60 and the cooling fluid, and improve the heat dissipation efficiency of the IGBT module 60. In some embodiments, the IGBT module 60 may include only the IGBT plate body 65, thereby simplifying the structure of the overall IGBT module 60 and saving space layout.

[0118] It should be noted that the first channel 911 and the second channel 912 may be interface areas on the motor controller 3 for pipeline connection; or may be areas surrounded by pipelines connected to the motor controller 3 .

[0119] It can be understood that since the driving board 21 is fixed on the IGBT module 60, most of the heat generated by the driving board 21 can be thermally transferred to the IGBT module 60 through the IGBT heat dissipation pipeline 91, and the remaining heat can be dissipated through the air. The three-phase adapter 40 is connected to the IGBT module 60 through the Hall element 50, so most of the heat generated by the three-phase adapter 40 can be thermally transferred to the IGBT module 60 through the Hall element 50, and the heat is extracted through the IGBT heat dissipation pipeline 91, and the remaining heat can be dissipated through the air and the box 10, thereby improving the heat dissipation effect of the three-phase adapter 40. The DC bus capacitor 71 is connected to the IGBT module 60 through the DC mounting seat 80, so part of the heat generated by the DC bus capacitor 71 can be transferred to the IGBT module 60 through the DC mounting seat 80, and the heat is extracted through the IGBT heat dissipation pipeline 91, and the remaining heat can be dissipated through the air, the box 10 and the thermal conductive silicone grease film set on the DC bus capacitor 71, thereby improving the heat dissipation effect of the DC bus capacitor 71.

[0120] In this embodiment, a built-in pipeline is provided in the housing 10, and the built-in pipeline and the IGBT plate 65 form a third channel 913. The built-in pipeline is integrally die-cast with the housing 10 to optimize the structural design of the housing 10 and reduce the risk of water leakage in the third channel 913. One end of the second channel 912 is connected to the third channel 913, and the other end of the second channel 912 is connected to the external pipeline 94. The external pipeline 94 and the first channel 911 are arranged on the same side of the housing 10, thereby improving the efficiency of assembly and disassembly and facilitating maintenance. A drainage structure 915 is provided at the connection between the third channel 913 and the drain pipeline, so that the liquid in the third channel 913 can be smoothly and quickly discharged to the drain pipeline to improve the heat dissipation effect of the IGBT module 60.

[0121] In some embodiments, the first channel 911 and the second channel 912 are respectively connected to the two sides of the third channel 913 in the length direction X (i.e., the second direction) of the motor controller 3. The present application designs the structure of the box 10 and the setting positions of the first channel 911 and the second channel 912, for example, the box 10 is overlapped with the IGBT, and the first channel 911 and the second channel 912 are connected to the two sides of the third channel 913. Therefore, the box 10 and the IGBT module 60 do not need to use a friction welding process to obtain the IGBT heat dissipation pipeline 91, thereby simplifying the processing technology, improving production efficiency and reducing costs.

[0122] Exemplarily, the transmission 2, the motor 1 and the motor controller 3 share a cooling circuit 90, thereby realizing a highly integrated and space-saving layout of the cooling circuit 90, thereby reducing the overall volume of the motor controller 3 assembly. The cooling circuit 90 includes an IGBT heat dissipation circuit 91, a motor heat dissipation circuit, a transmission circuit and a connecting circuit connecting the IGBT heat dissipation circuit 91 with the motor heat dissipation circuit and the transmission circuit. Specifically, the cooling fluid flows from the first channel 911 into the heat dissipation circuit of the motor controller 3, then flows out from the second channel 912 through the external circuit 94 to the oil cooler, and then the cooling fluid is introduced into the motor 1 and the transmission 2 respectively through the motor heat dissipation circuit and the transmission circuit to dissipate the heat of the motor 1 and the transmission 2, and finally the cooling fluid flows out from the oil cooler after passing through the motor 1 and the transmission 2. In some embodiments, the IGBT heat dissipation circuit 91 and the motor heat dissipation circuit and the transmission circuit can be independently arranged to improve the heat dissipation efficiency of the motor 1 and the transmission 2. The cooling fluid includes at least one cooling medium. The cooling medium can be, but is not limited to, liquid, gas or oil, etc. Exemplarily, in this embodiment, the cooling fluid is water, thereby reducing costs and improving heat dissipation effects.

[0123] The motor controller 3 also includes a temperature sensor 95, which is arranged at a position of the housing 10 corresponding to the first channel 911 and is used to detect the temperature of the fluid in the first channel 911, thereby improving the measurement accuracy of the temperature sensor 95 and reducing the water leakage loss. Specifically, in this embodiment, a mounting block 18 is protruded from the bottom of the housing 10. The mounting block 18 is provided with a first mounting hole 181 for mounting the first channel 911 and a second mounting hole 182 for mounting the temperature sensor 95. The connecting channel is connected to the first mounting hole 181 and the second mounting hole 182, so that the temperature sensor 95 can directly contact the cooling fluid, thereby improving the accuracy of detecting the temperature of the fluid in the first channel 911. The first mounting hole 181 is opened at the bottom of the mounting block 18, and the second mounting hole 182 is opened at the side of the mounting block 18, thereby facilitating the installation of the temperature sensor 95 and the first channel 911, and facilitating the arrangement of the first channel 911.

[0124] The motor controller 3 improves the space utilization inside the motor controller 3 by changing the assembly method of the DC bus 7, optimizing the layout and assembly of the high-voltage sampling structure and other components in the box 10, etc., so that the volume of the entire motor controller 3 is only 6.2L. The maximum power of the power assembly 200 of the present application is 270KW, so the power density of the power assembly 200 is 43.55kw / L.

[0125] Please also read Figures 1 to 18 , in the process of assembling the motor controller 3, first assemble the first integrated component 20 and the second integrated component 70. After the first integrated component 20 and the second integrated component 70 are fixed to the box 10, the shielding plate 23 is installed and fixed. The shielding plate 23 can isolate the electromagnetic interference generated when the DC bus capacitor 71 and the IGBT module 60 are working. Install the control board 22 and the rotary transformer harness. The control board 22 is installed on the side of the shielding plate 23 away from the drive board 21, the first connector 31 is connected through the ping pin and transmits signals, and the second connector 33 is connected to the control board 22 through the rotary transformer harness. Finally, the cover 15, the three-phase cover 16, and the busbar cover 17 are installed on the box 10, and the motor controller 3 is assembled. When assembling the second integrated component 70, the filter 72 is passed through the transfer copper bus 714 extending from the DC bus capacitor 71 along the width direction Y of the motor controller 3 to realize the assembly of the DC bus capacitor 71 and the filter 72. The DC power input by the DC bus 7 is transmitted to the IGBT module 60 through the DC bus capacitor 71 .

[0126] The powertrain 200 provided in the present application shortens the length of the electric control housing 6 and reduces the volume of the powertrain 200 by adjusting the installation method of the DC bus 7. The shielding plate 23 and the housing 10 are combined into a first shielding cabin 103 through structural design to shield the first connector 31, so that there is no need to develop an additional shielding cover, thereby improving space utilization. The housing 10 of the electric control housing 6 is provided with a second shielding cabin 104 for accommodating the second connector 33, which can reduce the high-voltage interference to the second connector 33. The sampling structure 713 on the DC bus capacitor 71 is fixedly connected to the control board 22 for high-voltage sampling, which not only achieves the high-voltage sampling function of the battery, but also plays the role of fixing the control board 22, saving cost and space, and facilitating the disassembly of the control board 22. The IGBT heat dissipation pipeline 91 formed by the box 10 and the IGBT module 60 is designed in the motor housing 4, and the position adjustment of the first channel 911 and the discharge pipeline is used, so that the box 10 can obtain the IGBT heat dissipation pipeline 91 without friction welding, thereby reducing the cost. The temperature sensor 95 is placed outside the controller and extends into the first channel 911, thereby enhancing the sampling accuracy and ensuring that the controller will not be damaged after the seal fails, and only one sensor needs to be replaced for continued use. By adjusting the installation position of the motor controller 3, the present application installs the motor controller 3 at the connecting corner 300 of the motor 1 and the transmission 2, and overlaps with the motor 1 and the transmission 2, so that the motor controller 3 fully utilizes the remaining space between the motor 1 and the transmission 2, and reduces the volume of the powertrain 200. Therefore, the motor controller 3 does not occupy the height of the powertrain 200 in the height direction Z and reasonably utilizes the space above the transmission half shaft 8. In addition, by optimizing the internal structure of the motor controller 3, the volume and mass of the motor controller 3 are reduced, and the power density of the motor controller 3 is improved.

[0127] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A motor controller, characterized in that: It includes an electric control housing, a shielding plate, a control board and a first connector; The shielding plate, the control board and the first connector are all arranged in the electric control housing; The electric control housing and the shielding plate form a first shielding cabin, the first connector is at least partially accommodated in the first shielding cabin, and the first connector is connected to the control board.

2. The motor controller according to claim 1, characterized in that: The shielding plate and the control board are arranged in sequence along a first direction, wherein the first direction is a direction perpendicular to the plane where the shielding plate and / or the control board are located, and the first connector is located on a side of the control board facing the shielding plate.

3. The motor controller according to claim 1, characterized in that: It also includes a driving plate, wherein the driving plate, the shielding plate and the control plate are arranged in sequence along a first direction, wherein the first direction is a direction perpendicular to the plane where the shielding plate and / or the control plate are located.

4. The motor controller according to claim 2, characterized in that: The shielding plate includes a shielding wall, the shielding wall extends along the first direction, and the shielding wall and the electric control housing form the first shielding cabin.

5. The motor controller according to claim 4, characterized in that: The electric control housing is provided with a through hole, the through hole is communicated with the first shielding cabin, and the first connector at least partially passes through the through hole.

6. The motor controller according to claim 5, characterized in that: The electric control housing comprises a side plate, the side plate extends along the first direction, and the first shielding cabin is at least formed by enclosing the side plate and the shielding wall.

7. The motor controller according to claim 6, characterized in that: The electrical control housing also includes a bottom plate, the side plate is arranged around the edge of the bottom plate, the side plate includes a first side wall and a support wall extending outward from the first side wall, the support wall is located on the side of the shielding plate away from the control plate, the support wall is provided with the through hole, and the first shielding cabin is formed by at least the support wall and the shielding wall.

8. The motor controller according to claim 7, characterized in that: The side panel also includes a first edge arranged on the outer edge of the support wall, a second side wall and a second edge arranged on the second side wall toward one end of the first side wall. The first shielding cabin is formed by at least the support wall, the first edge, the second edge and the shielding wall.

9. The motor controller according to claim 1, characterized in that: The electric control housing is provided with a DC bus interface, and the DC bus interface is extended along a first direction, wherein the first direction is a direction perpendicular to the plane where the shielding plate and / or the control board are located.

10. The motor controller according to claim 1, characterized in that: The motor controller further includes a second connector connected to the control board, and the first connector and the second connector are respectively connected to two opposite sides of the control board in the second direction.

11. The motor controller according to claim 10, characterized in that: A second shielding cabin for accommodating the second connector is arranged in the electric control housing.

12. The motor controller according to claim 11, characterized in that: The second connector is connected to the control board via a cable, and the motor controller also includes a fixing base for fixing the second connector, and the fixing base is installed in the area of ​​the electric control housing corresponding to the outside of the shielding plate; the fixing base includes a first mounting frame installed in the second shielding cabin and a second mounting frame arranged outside the second shielding cabin, the second connector is installed on the first mounting frame, and the second mounting frame is provided with a restraining structure for restraining the cable.

13. The motor controller according to claim 11, characterized in that: The motor controller further includes a three-phase adapter, which is arranged on the same side of the electrical control housing in the width direction of the motor controller as the second connector, and is electromagnetically isolated from the second connector by the second shielding cabin.

14. The motor controller according to claim 13, characterized in that: The motor controller also includes a drive board, a Hall element and an IGBT module. The drive board, the shielding plate and the control board are arranged in sequence along the first direction. The three-phase adapter, the Hall element and the IGBT module are all located on the side of the drive board away from the shielding plate, and are connected in sequence along the width direction of the motor controller.

15. The motor controller according to claim 1, characterized in that: The motor controller also includes a DC bus capacitor and a sampling structure, wherein the sampling structure is connected to the DC bus capacitor and the control board respectively, and the DC bus capacitor is arranged on one side of the control board in a first direction, wherein the first direction is a direction perpendicular to the plane where the shielding plate and / or the control board are located, and the sampling structure extends from the DC bus capacitor toward one end of the control board and supports the control board.

16. A powertrain, characterized in that: It comprises a motor, a transmission and a motor controller as described in any one of claims 1 to 15, wherein the motor is connected to the transmission and the motor controller.

17. A vehicle, characterized in that: Comprising a motor controller as described in any one of claims 1-15; or, a powertrain as described in claim 16.

Images