CN220904667U

CN220904667U - Powertrain and vehicle

Info

Publication number: CN220904667U
Application number: CN202322597013.9U
Authority: CN
Inventors: 孙海平; 喻凤传
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-07
Anticipated expiration: 2033-09-22

Abstract

The utility model discloses a power assembly and a vehicle. The power assembly comprises a motor, a speed changer, a motor controller and a supporting frame. The transmission is connected to the motor and forms a corner at the connection. The motor controller is disposed at the corner portion and overlaps the motor and the transmission. Along the direction of height of power assembly, the one end of support frame is connected motor controller, the other end of support frame is connected the derailleur, the support frame with the motor interval sets up. By adopting the power assembly, the occupied space of the motor controller in the height direction of the power assembly is reduced, the volume of the power assembly is reduced, and the power density of the motor controller is further reduced; meanwhile, the motor controller and the speed changer are fixed through the support frame, so that the connection stability and reliability of the motor controller and the speed changer are improved, and the structural strength of the power assembly is enhanced.

Description

Powertrain and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a power assembly and a vehicle.

Background

With the continuous development of new energy automobiles. While the functions of the interior of a car are becoming more and more, the interior space thereof is becoming more and more compact. The existing power assembly comprises a motor, a transmission and a motor controller. However, existing transmissions are supported directly on the motor, however, in this manner the motor has poor strength of support for the motor controller.

Disclosure of utility model

Accordingly, an object of the present utility model is to provide a powertrain and a vehicle, which solve the technical problem of poor supporting strength of a motor controller in the prior art.

In a first aspect, the present utility model provides a powertrain including a motor, a transmission, a motor controller, and a support frame. The transmission is connected to the motor and forms a corner at the connection. The motor controller is disposed at the corner portion and overlaps the motor and the transmission. Along the direction of height of power assembly, the one end of support frame is connected motor controller, the other end of support frame is connected the derailleur, the support frame with the motor interval sets up.

In a second aspect, the present utility model provides a vehicle comprising a body and a powertrain as described above mounted on the body, the volume of the powertrain being reduced and the electromagnetic shielding effect being improved.

The utility model provides a power assembly and a vehicle, which are based on the fact that a motor controller is arranged at a corner part where a speed changer is connected with a motor and is overlapped with the motor and the speed changer, a supporting frame is additionally arranged to be connected with the speed changer and the motor controller, one end of the supporting frame is connected with the motor controller along the height direction of the power assembly, the other end of the supporting frame is connected with the speed changer, and the supporting frame is arranged at intervals with the motor, so that the occupied space of the motor controller in the height direction of the power assembly is reduced, the size of the power assembly is reduced, and the power density of the motor controller is further reduced; meanwhile, the motor controller and the speed changer are fixed through the support frame, so that the connection stability and reliability of the motor controller and the speed changer are improved, and the structural strength of the power assembly is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a powertrain of the vehicle of fig. 1.

FIG. 3 is a schematic illustration of the powertrain and drive half-shaft of the vehicle of FIG. 1.

FIG. 4 is a partial cross-sectional view of the powertrain and the drive half-shaft of the vehicle of FIG. 3.

Fig. 5 is an exploded view of the powertrain of the vehicle of fig. 2 with the dc bus omitted.

Fig. 6 is an enlarged view of the portion I in fig. 3.

Fig. 7 is an enlarged view of the support frame of the powertrain of fig. 2.

Fig. 8 is a schematic structural view of a motor controller of a powertrain of the vehicle of fig. 2.

Fig. 9 is a side view of the motor controller of fig. 8 with the cover and the three-phase cover omitted.

Fig. 10 is a top view of the motor controller of fig. 8 with the cover, three-phase cover and control board omitted.

Fig. 11 is a plan view of the motor controller of fig. 8 with the cover, three-phase cover, control board, and shield plate omitted.

Fig. 12 is a bottom view of the motor controller of fig. 8 with the cover and the three-phase cover omitted.

Fig. 13 is a cross-sectional view of the motor controller of fig. 12 taken along line A-A.

Fig. 14 is an enlarged view of a portion II of the motor controller in fig. 13.

Fig. 15 is a partial cross-sectional view of the motor controller and dc bus of fig. 8.

Fig. 16 is an exploded view of a filter of the motor controller of fig. 8.

Fig. 17 is a cross-sectional view of the motor controller of fig. 12 taken along line B-B.

Fig. 18 is a cross-sectional view of the motor controller of fig. 12 taken along line C-C.

Description of main reference numerals: a vehicle 1000; a vehicle body 100; a power assembly 200;

A motor 1; a first support fitting portion 110;

A transmission 2; an input side member 210; an output side member 220; an output half shaft 2201; a second support fitting part 230; a corner 300;

a motor controller 3;

A motor housing 4;

A transmission case 5; a first housing 51; a second housing 52; a first sub-housing 521; a second sub-housing 522;

An electric control housing 6; a first edge portion 610; oblique opening 6101; a shrink notch 6102; a second edge portion 620; corner points 6201;

A direct current bus 7; a positive bus 710; a negative bus 720; a wire clip 730; a fixed support 740; bus bar copper bar 750;

a transmission half shaft 8;

A support 9; a first support plate 910; a first mounting location 9101; a second support plate 920; a second mounting location 9201; a protection plate 930; a guard slot 9301; a third support plate 940; a third mounting location 9401;

A case 10; a dc bus interface 101; a receiving chamber 102; a first shielding compartment 103; a second shielded room 104; a partition 1041; a first housing portion 105; an abutting portion 1051; a suspended portion 1052; a second housing portion 106; a third case portion 107; a bottom plate 11; an opening 1101; a side plate 12, a first side wall 121; a second sidewall 122; a support wall 123; a first edge 124, a second edge 125; a through hole 1201; a through hole 131; a space 132; a positioning groove 133; a top plate 14; a cover 15; an operation hole 151; a three-phase cover plate 16; a bus bar cover 17; a mounting block 18; a first mounting hole 181; a second mounting hole 182; a first support mounting portion 191; a fixing hole 1911; a second support mounting portion 192;

A first integrated component 20; a drive plate 21; a control board 22; a shielding plate 23; notch 2301; a via 2302; a shielding wall 231;

A routing channel 301; a first plug member 31; a second plug member 33; a cable 34; a fixing base 35; a first mounting bracket 351; a second mounting bracket 352; a constraint structure 353;

a three-phase adapter 40; a adaptor 41; a three-phase copper bar 42; a magnetic ring 43;

A hall element 50;

An IGBT module 60; an input copper bar 61; an output copper bar 62; an IGBT board 65; heat dissipation pins 66;

a second integrated component 70; a dc bus capacitor 71; a capacitor body 711; a capacitance support portion 712; a sampling structure 713; a transfer copper bar 714; a dc output copper bar 715; locking member 716; a filter 72; a filter housing 721; alignment holes 7211; a first magnetic ring 722; a first jack 7221; a second magnetic ring 723; a second jack 7231; an X capacitance 724; a Y capacitor 725; a connection plate 726;

a DC mount 80;

A cooling line 90; an IGBT heat dissipation pipe 91; a first channel 911; a second channel 912; a third channel 913; a drainage structure 915; an external conduit 94; a temperature sensor 95.

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is to be understood that the terminology used in the description and claims of the utility model and in the above description and drawings is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term "comprising" and any variations thereof is intended to cover a non-exclusive inclusion. Furthermore, the present utility model may be embodied in many different forms and is not limited to the embodiments described in the present embodiment. The following specific examples are provided to facilitate a more thorough understanding of the present disclosure, in which terms indicating orientations of the components, up, down, left, right, etc., are merely for the locations of the illustrated structures in the corresponding drawings. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "disposed on … …" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The description is then made of the preferred embodiments for carrying out the utility model, however, the foregoing description is for the purpose of illustrating the general principles of the utility model and is not meant to limit the scope of the utility model. The scope of the utility model is defined by the appended claims.

The basic concepts involved in the embodiments of the present utility model will be briefly described below.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a vehicle 1000 according to an embodiment of the utility model; fig. 2 is a schematic structural diagram of the powertrain 200 of the vehicle 1000 of fig. 1. The vehicle 1000 includes a vehicle body 100 and a powertrain 200 mounted on the vehicle body 100. The vehicle body 100 is provided with a mount. The powertrain 200 is fixedly coupled to the vehicle body 100 via a mount. Specifically, the powertrain 200 is fixed to the vehicle body 100 by a mount welding method or a screw locking method. The vehicle 1000 may be, but is not limited to, an automobile, a light rail car, or the like, that uses the powertrain 200.

It should be noted that fig. 1 is only an example of the vehicle 1000, and does not limit the vehicle 1000, and the vehicle 1000 may include more or fewer components than those shown in fig. 1, or may combine some components, or different components, for example, the vehicle 1000 may further include an in-vehicle device, wheels, and the like.

For the sake of accuracy, reference is made herein to fig. 2 throughout this document to refer to the direction, and the term "longitudinal direction X" refers to the forward direction of the vehicle 1000 and the direction parallel to the longitudinal direction of the vehicle 1000, i.e., the front-rear direction (where the X-axis forward direction is the front). The term "width direction Y" refers to a direction in which the left wheel of the vehicle 1000 points to the right wheel and is parallel to the width direction of the vehicle 1000, i.e., a left-right direction (in which the Y-axis forward direction is right). The term "height direction Z" refers to a direction in which the support plane of the vehicle 1000 points to the highest protruding portion of the vehicle 1000, and is parallel to the height direction of the vehicle 1000, i.e., an up-down direction (in which the Z-axis forward direction is upward). The longitudinal direction X, the width direction Y, and the height direction Z together constitute three orthogonal directions of the vehicle 1000 or the motor controller 3. The longitudinal direction of the motor controller 3 is parallel to the longitudinal 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 convenience of description, the vertical, horizontal, front-rear directions in the present utility model are relative positions, and are not limited to implementation. The length direction X, width direction Y and height direction Z of the motor controller 3 may be customized according to the specific structure of the product and the view angle of the drawing, and the present utility model is not limited in particular. Illustratively, in the present 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.

Referring to fig. 1, 3-4, fig. 3 is a schematic structural diagram of a powertrain 200 and a half-drive shaft 8 of the vehicle 1000 in fig. 1; fig. 4 is a partial cross-sectional view of the powertrain 200 and the drive half-shaft 8 of the vehicle 1000 of fig. 3. The powertrain 200 includes a motor 1, a transmission 2, and a motor controller 3. The motor 1 is connected to a transmission 2 and a motor controller 3. The motor controller 3 is used to control the operation of the motor 1. The motor 1 is used for driving the transmission 2 to work. Specifically, the transmission 2 includes an input-side member 210 in driving connection with the motor 1 and an output-side member 220 in driving connection with the input-side member 210. The vehicle 1000 also includes a drive half shaft 8. The output side member 220 is connected to at least one drive half shaft 8 to effect control of the speed of the vehicle 1000. Illustratively, in the present embodiment, the output side member 220 includes two output half shafts 2201, with each of the two output half shafts 2201 being connected to one of the drive half shafts 8.

The motor 1 is connected with the transmission 2 and forms a corner 300 at the connection, and the motor controller 3 is arranged at the connection corner 300 of the motor 1 and the transmission 2 and is overlapped with the motor 1 and the transmission 2, so that the motor controller 3, the motor 1 and the transmission 2 are integrated into a power assembly 200. The corner 300 is generally L-shaped. In the height direction Z of the powertrain 200, the motor controller 3 can sink toward the drive half shaft 8 at the corner 300 such that the height of the motor controller 3 is substantially flush with the heights of the transmission 2 and the motor 1, whereby the motor controller 3 fully utilizes 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 may also be directly attached to 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 power assembly 200. Illustratively, in the present 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 highest point of the motor controller 3 is higher than the motor 1 and the transmission 2 by a much smaller height than the motor controller 3. For example, the highest point of the motor controller 3 is 0.5mm to 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, 10mm, or the like.

Referring to fig. 1 to 5 together, fig. 5 is an exploded view of the power assembly 200 of the vehicle 1000 in fig. 2 with the dc bus 7 omitted. The output side member 220 and the input side member 210 are arranged in this order along the longitudinal direction X of the powertrain 200, and the motor controller 3 overlaps the motor 1 and the output side member 220. Thus, the output side member 220 can be used to support the motor controller 3, thereby avoiding the provision of an additional support base to support the electric controller, making the power assembly 200 more compact, improving space utilization, and reducing the volume of the power assembly 200; on the other hand, stable fixation of the motor controller 3 is improved. Illustratively, in the present embodiment, the input-side member 210 and the motor 1 are arranged in this order in the width direction Y of the powertrain 200. The output-side member 220 is provided so as to protrude toward one side of the motor 1 with respect to the input-side member 210 in the width direction Y of the powertrain 200. In some embodiments, the input-side member 210 is disposed to partially overlap the motor 1 in the width direction Y of the powertrain 200; or the input side member 210 and the motor 1 may be arranged in the longitudinal direction Y of the powertrain 200, or the input side member 210 and the output side member 220 may be arranged at least partially overlapping in the width direction Y of the powertrain 200. The positional relationship of the input side member 210, the output side member 220, and the motor 1 can be adjusted according to the actual situation, and the present utility model is not particularly limited.

The power assembly 200 further includes a support bracket 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 the present 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 member 220. Thus, on one hand, the power assembly 200 supports the motor controller 3 by adding the supporting frame 9, so that the stability and reliability of the motor controller 3 fixed on the motor 1 and the transmission 2 are improved; on the other hand, the supporting frame 9 is extended in the height direction Z of the power assembly 200, so that the space utilization of the power assembly 200 in the height direction Z is improved, and the volume is reduced.

In the embodiment, the supporting frame 9 is connected between the transmission 2 and the motor controller 3, so that the supporting strength of the motor controller 3 is improved; compared with the way of connecting the support frame 9 between the motor 1 and the motor controller 3, the present embodiment can promote the support strength at the weak position of the motor controller 3 for the following reasons:

In the related art, since the outer casing of the motor 1 is generally cylindrical as shown in fig. 1 to 5, the motor controller 3 and the outer casing of the motor 1 have a portion overlapping in the X direction, that is, the motor controller 3 has a portion overlapped on the outer casing of the motor 1, so that the outer casing of the motor 1 supports the entire motor controller 3 by the portion of the motor controller 3 overlapped thereon, that is, the motor controller 3 near the motor 1 has been sufficiently supported. However, due to the limitation of the Z-direction dimension, the motor controller 3 cannot be stacked on the transmission 2, and the transmission 2 generally has difficulty in supporting the motor controller 3; resulting in the motor controller 3 forming a cantilever-like structure, the motor 1 is effectively supported only on the side close to the motor 1, and there is insufficient support on the side close to the transmission 2.

In the embodiment, the supporting frame 9 is added, the motor controller 3 is supported by the transmission 2, and the supporting strength of the motor controller 3 is improved.

The support frame 9 is connected to the output side member 220. In some embodiments, the support frame 9 is mounted laterally between the output side member 220 and the motor controller 3. Specifically, the support frame 9 is mounted to a side wall of the output side member 220 on the side facing the motor 1. Thereby improving the convenience of assembling the motor controller 3 and the transmission 2, realizing the stable fixation of the motor controller 3, and improving the structural strength of the power assembly 200. One end of the support frame 9 is connected to a side wall of the motor controller 3, and the other end of the support frame 9 is connected to a side wall of the output side member 220 facing away from the input side member 210 in the width direction Y of the power assembly 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 a side wall of the output side member 220 facing away from the input side member 210 in the width direction Y of the powertrain 200.

The motor controller 3 further comprises a first edge portion 610 arranged in suspension relative to the motor 1 and the transmission 2. The first edge portion 610 is provided with a first support mounting portion 191, and the transmission 2 is provided with a first support engaging portion 110. One end of the supporting frame 9 is connected to the first supporting installation part 191, and the other end of the supporting frame 9 is connected to the first supporting matching part 110. On the one hand, on the basis of the additionally arranged supporting frame 9 to support the suspended part 1052 of the motor controller 3, the connection strength and the connection reliability between the motor controller 3 and the motor 1 and the transmission 2 are improved, and the structural strength of the power assembly 200 is improved; on the other hand, the difficulty in installation due to the irregular structural appearance in a narrow and crowded space is avoided, and the assembly efficiency of the support frame 9 is improved.

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 power assembly 200, so that the corner space between the motor 1 and the transmission 2 is better utilized, the space of the power assembly 200 in the height direction Z is reasonably utilized, the overall volume is reduced, and the assembly of the support 9, the motor controller 3 and the transmission 2 is facilitated. Illustratively, in the present embodiment, the first support mount 191 is provided at the bottom of the motor controller 3 toward the output side member 220. Along the width direction Y of the powertrain 200, the first support fitting portion 110 is disposed on a side of the output-side member 220 facing away from the input-side member 210 and below the first support mounting portion 191.

The motor controller 3 further includes a second edge portion 620 connected to the first edge portion 610. In the present embodiment, the second edge portion 620 overlaps with the motor 1 and the transmission 2. The second edge portion 620 is provided with a second support mounting portion 192, and the motor 1 and/or the transmission 2 is provided with a second support engaging portion 230 engaged with and fixed to the second support mounting portion 192. Illustratively, in the present embodiment, four second support engaging portions 230 that are engaged with and fixed to the second support mounting portions 192 are provided on each of the motor 1 and the transmission 2. Specifically, two of the second support engaging portions 230 are provided at a side portion of the motor 1 facing away from the transmission 2 in the width direction Y of the power train 200, and the other two of the second support engaging portions 230 are provided on the output side member 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 power train 200. In some embodiments, the number and positions of the second support engaging portions 230 may be designed according to the external shapes of the motor 1, the transmission 2, and the motor controller 3, for example, the number of the second support engaging portions 230 may be one, two, three, or more than four.

Illustratively, in the present embodiment, the plurality of first support mounting portions 191 are disposed on a side of the bottom plate 11 facing away from the cover 15, and the second support mounting portions 192 are disposed around the side plate 12 at intervals, so that the assembly is convenient, the layout is reasonable, and the center of gravity of the motor controller 3 is stable.

In some embodiments, the second edge portion 620 overlaps only 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 fitting portion 230 fitted and fixed with the second support mounting portion 192.

Optionally, in some embodiments, the motor controller 3 forms a diagonal opening 6101 at the first edge portion 610. On the one hand, the stability and the reliability of the motor 1 and the transmission 2 for supporting the motor controller 3 are improved; on the other hand, the assembly of wiring and components of the power assembly 200 at the retracted position is facilitated; in yet another aspect, 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 travels more smoothly. Specifically, the end of the first edge portion 610 near the transmission 2 is inclined toward the end near the motor 1 facing away from the transmission 2 in the width direction Y, that is, the first edge portion 610 is disposed at an angle with the length direction X of the motor controller 3, wherein the opening direction of the angle faces 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 tapered toward the inflection point. The first edge portion 610 and the second edge portion 620 are joined to form a triangle-like profile.

In some embodiments, the junction of the first edge portion 610 and the second edge portion 620 is formed as two pinch-in notches 6102. The second support mounting portion 192 and the second support mounting portion 192 are provided at the corresponding shrink notches 6102, thereby facilitating the assembly of the motor housing 4.

The powertrain 200 further 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 electric control housing 6. The motor housing 4 is matched and fixed with the transmission housing 5 to realize that the motor 1 and the transmission 2 share one housing, so that the number of the housings is reduced, the whole volume is reduced, the integrated arrangement of the power assembly 200 can be realized, and the miniaturization of the power assembly 200 is facilitated. Optionally, the motor housing 4 and the transmission housing 5 are detachably matched and fixed, so that the assembly of the motor 1 and the transmission 2 is facilitated, and the assembly efficiency is improved. 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 transmission housing 5.

Illustratively, in this embodiment, the motor housing 4 is connected to the transmission housing 5 and forms a T-shaped structure. The transmission case 5 includes a first case 51 and a second case 52. The first and second housings 51 and 52 and the motor 1 and second housings 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 sequentially arranged along the width direction Y of the motor controller 3, and the first housing 51 and the second housing 52 are sequentially arranged 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 shell 6 is lapped on the motor shell 4, and one end of the electric control shell 6 is lapped on the second shell 52, so that the integration level of the power assembly 200 is improved, the volume and the quality of the power assembly 200 are reduced, the space is saved, and the power density is improved.

The input shaft of the transmission 2 is provided in the first housing 51, and the output shaft of the transmission 2 is provided in the second housing 52. The second housing 52 includes a first sub-housing 521 and a second sub-housing 522 cooperatively secured 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 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. Illustratively, in the present embodiment, the first sub-housing 521 and the second sub-housing 522 may be detachably connected together, for example, fixed by being mutually engaged and fixed by means of screw locking or the like, so as to facilitate 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 may also be secured together by, but not limited to, a snap fit.

The electric control shell 6 comprises a box body 10 and a cover body 15 which is matched and fixed with the box body 10. The case 10 and the cover 15 may be fixed together by being mutually engaged and fixed by means of screw locking or the like. In some embodiments, the case 10 and the cover 15 may also be secured together by, but not limited to, a snap fit engagement. The casing 10 includes a first casing portion 105, a second casing portion 106, and a third casing portion 107, which are arranged in this order in the width direction Y of the motor controller 3. The first box portion 105 comprises a hanging portion 1052 which is overlapped with the abutting portion 1051 of the speed changer 2 and is connected with the abutting portion 1051, one end of the supporting frame 9 is connected with the hanging portion 1052, the other end of the supporting frame 9 is connected with the speed changer 2, the hanging portion of the electric control shell 6 is supported through the supporting frame 9, the strength of the power assembly 200 is guaranteed, the Z-direction space of the power assembly 200 occupied by the motor controller 3 is greatly reduced, and the space utilization rate of the power assembly 200 is improved. Along the length direction X of the motor controller 3, one end of the second box body 10 is overlapped with the motor 1, and the other end of the second box body 10 is arranged in a suspending manner relative to the motor 1 and the transmission 2. Along the length direction X of the motor controller 3, the second casing 10 is retracted toward the motor 1 side with respect to the first casing 10, thereby enhancing the structural strength of the power assembly 200. In some embodiments, the second casing 10 is sunk toward the output-side member 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 power assembly 200. The third box 10 is lapped over the motor 1. Illustratively, in the present embodiment, the third casing 10 is entirely overlapped above the motor 1. The third housing portion 107 is provided in a stepped manner with the second housing portion 106.

Referring to fig. 2, 6 and 7 together, fig. 6 is an enlarged view of the portion I in fig. 3; fig. 7 is an enlarged view of the support frame 9 of the powertrain 200 of fig. 2. 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 second mounting positions 9201 corresponding to the first support fitting portions 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" refers to that the first support mounting portions 191 are connected to the first mounting positions 9101 in a one-to-one correspondence manner, that is, the number of the first support mounting portions 191 is equal to the number of the first mounting positions 9101 in a one-to-one correspondence manner. The first supporting and matching parts 110 are also connected with the second mounting positions 9201 in a one-to-one correspondence manner, that is, the number of the first supporting and matching parts 110 is equal to and in one-to-one correspondence with the number of the second mounting positions 9201. In some embodiments, the number of first support mounting portions 191 and the number of first mounting positions 9101 and the number of first support engaging portions 110 and the number of second mounting positions 9201 may also be different, thereby improving assembly flexibility. Illustratively, in the present embodiment, two first mounting locations 9101 are provided on the first mounting location 9101, and one second mounting location 9201 is provided on the second support plate 920. The first support mounting portion 191 is provided with a fixing hole 1911 at a position corresponding to the first mounting position 9101. A locking member, such as a bolt, a rivet, a pin, etc., passes through the first mounting portion 9101 and is locked in the fixing hole 1911, thereby achieving a fixed connection of the support bracket 9 and the first support mounting portion 191.

In some embodiments, the support 9 further comprises a protective plate 930. The protection plate 930 is protruded on the edge of the first support plate 910 and/or the second support plate 920, and forms a protection groove 9301 with the first support plate 910 and/or the second support plate 920, and a notch of the protection groove 9301 faces away from the transmission 2 in the width direction Y of the power assembly 200, so that locking pieces 716 locked at the first installation position 9101 and/or the second installation position 9201 due to impact of other elements in a narrow and crowded space can be avoided in the process of assembling the power assembly 200, and the reliability of connection between the support frame 9 and the motor controller 3 and the transmission 2 is improved, so that the support frame 9 better supports the motor controller 3. Illustratively, in the present embodiment, the protection plate 930 is disposed in a bent manner with respect to the first support plate 910 and the second support plate 920. The shielding plate 930 is coupled with the first and second supporting plates 910 and 920 and forms a U-shaped shielding groove 9301.

In some embodiments, the support 9 further comprises a third support plate 940, the third support plate 940 being connected to the first support plate 910 and/or the second support plate 920 and being arranged at an angle. The third support plate 940 is provided with a third mounting location 9401 adapted for connection to a third party element. Thus, on the one hand, the power assembly 200 further improves the reliability of the connection between the support frame 9 and the motor controller 3 and the transmission 2 by arranging the mounting positions at different orientations 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 may be, but is not limited to, a vehicle body 100, an oil pump, an oil cooler, and the like.

Referring again to fig. 2, the powertrain 200 further includes a dc bus 7. One end of the direct current bus 7 is connected with the motor controller 3, and the other end of the direct current bus 7 is connected with an energy storage piece. In this embodiment, the energy storage member is a battery. In some embodiments, the energy storage element may also be, but is not limited to, a capacitor. The energy storage member is capable of providing power to the powertrain 200 to effect operation of the various electrical components of the powertrain 200. The direct current bus 7 is pluggable and spliced with the motor controller 3, so that the assembly is convenient; on the other hand, since the energy storage member is provided outside the motor controller 3, by providing the direct current bus 7, the connection between the energy storage member and the motor controller 3 is more stable. The dc bus 7 may be configured as a single-core structure or a multi-core structure. Illustratively, in the present embodiment, the direct current bus 7 includes a positive bus 710 and a negative bus 720. Positive bus 710 and negative bus 720 are respectively connected to the positive and negative terminals of the energy storage. Positive bus 710 and negative bus 720 may be bundled together by a clip 730 to save space. In some embodiments, the positive bus 710 and the negative bus 720 may be integrated into one body, thereby reducing external structures and improving assembly efficiency. The number of clips 730 may include one or more. The dc bus 7 further includes a fixed support frame 740 that fixes the dc bus 7. The fixed support 740 may be mounted to the wire clamp 730 or may be mounted to the dc bus 7 and/or the vehicle body 100. Illustratively, in the present embodiment, the third support plate 940 is protruded on the protection plate 930 of the second support plate 920.

In the present embodiment, the dc bus 7 is vertically installed on the motor controller 3. The vertical mounting design of the dc bus 7 of the present utility model reduces the volume of the dc bus 7 by at least 1/4 compared to the conventional horizontal mounting design of the dc bus 7, thereby reducing the overall volume of the powertrain 200. It should be noted that, the direct current bus 7 being vertically installed on the motor controller 3 means that the positive bus 710 and the negative bus 720 of the direct current bus 7 are sequentially arranged along the height direction Z of the motor controller 3 and are installed on the motor controller 3. The positive bus bar 710 and the negative bus bar 720 are aligned in a direction Z perpendicular to the height direction of the motor controller 3, that is, the positive projection of the positive bus bar 710 in the height direction Z of the motor controller 3 and the positive projection of the negative bus bar 720 in the height direction Z of the motor controller 3 are arranged in superposition.

Referring to fig. 2, 8 and 9, fig. 8 is a schematic structural diagram of the motor controller 3 of the powertrain 200 of the vehicle 1000 in fig. 2; fig. 9 is a side view of the motor controller 3 in fig. 8 with the cover 15 and the three-phase cover 16 omitted. 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 shell 6. The electrically controlled housing 6 forms a first shielding compartment 103 with the shielding plate 23. The first connector 31 is at least partially accommodated in the first shielding compartment 103. The first connector 31 is connected to the control board 22.

According to the motor controller 3 provided by the utility model, the first shielding cabin 103 is formed between the electric control shell 6 and the shielding plate 23, the first plug connector 31 is at least partially accommodated in the first shielding cabin 103, and the space of the inner cavity of the electric control shell 6 and the shielding performance of the shielding plate 23 are reasonably utilized, so that a good electromagnetic isolation effect between the first plug connector 31 and other parts except the control plate 22 is realized, and the structural design of the first shielding cabin 103 is simplified; at the same time, an additional shielding structure for the first plug connector 31 is avoided, and the volume of the motor controller 3 is reduced.

In the embodiment of the present utility model, the first connector 31 is electromagnetically isolated from other components except the control board 22, which mainly means that the first connector 31 needs to be electromagnetically isolated from the driving board 21. In the present embodiment, the first connector 31 is a low-voltage connector connected to the control board 22.

The high pressure and the low pressure in this embodiment are opposite to each other. The difference between the high voltage element and the low voltage element is mainly that there is a difference in the operating voltages of the two, and the operating voltage of the high voltage element is higher than that of the low voltage element. For example, with respect to the drive plate 21, the drive plate 21 includes a low-voltage side and a high-voltage side, the low-voltage side of the drive plate 21 is connected to the control board 22, the low-voltage side of the drive plate 21 is connected to the power module, and the power module is connected to the motor 1, wherein the operating voltage of the motor 1 is higher than that of the control board 22.

The shielding plate 23 and the control panel 22 are sequentially arranged along a first direction, wherein the first direction is a direction perpendicular to a plane where the direction of the shielding plate 23 and/or the control panel 22 is located, and is parallel to the height direction Z of the motor controller 3, and the first plug connector 31 is located on one side of the control panel 22 facing the shielding plate 23, so that the problem that the occupied space of the first plug connector 31 and a connecting line with the first plug connector 31 in the height direction Z of the motor controller 3 is increased due to the fact that the first plug connector 31 is arranged on the control panel 22 back to the shielding plate 23 is avoided, the size of the motor controller 3 is reduced, and the first shielding cabin 103 is formed between the shielding plate 23 and the electric control shell 6 more conveniently.

The motor controller 3 further includes a drive plate 21. The driving plate 21, the shielding plate 23 and the control plate 22 are sequentially arranged along the height direction Z of the motor controller 3, so that the integration level of the control plate 22, the driving plate 21, the shielding plate 23 and the first plug connector 31 is high, and the power density of the motor controller 3 is reduced. The working voltages of the driving board 21 and the control board 22 in this embodiment are different, and electromagnetic isolation is needed between the driving board 21 and the control board 22, and the shielding board 23 can also play a role of electromagnetically isolating the driving board 21 and the control board 22 through arrangement of the driving board 21, the shielding board 23 and the control board 22, that is, the shielding board 23 is multiplexed, and can be used as a shielding structure between the driving board 21 and the control board 22 and a shielding structure between the first plug connector and other components.

Illustratively, in the present embodiment, the drive plate 21 or the control plate 22 is a substantially rectangular thin plate, and the longitudinal direction X (i.e., the second direction) of the motor controller 3 refers to the extending direction of the drive plate 21 or the control plate 22, i.e., the longitudinal direction of the drive plate 21 or the control plate 22; the width direction Y (i.e., the third direction) of the motor controller 3 refers to a direction perpendicular to the length direction X of the motor controller 3, for example, a short side direction of the drive plate 21 or the control plate 22; the height direction Z (i.e., the first direction) of the motor controller 3 refers to a direction perpendicular to the plane in which the driving plate 21, the shielding plate 23, or the control plate 22 is located. The plane of the driving plate 21, the plane of the shielding plate 23 and the plane of the control plate 22 are substantially parallel.

It should be noted that fig. 8 is only for schematically describing the arrangement manner of the electric control housing 6, the driving plate 21, the shielding plate 23, the control plate 22, and the first connector 31, and is not limited to the connection position, connection relationship, specific structure, and the like of each element. Fig. 8 is merely a structure of the motor controller 3 illustrated in the embodiment of the present utility model, and does not constitute a specific limitation of the motor controller 3. In other embodiments of the utility model, the motor controller 3 may comprise more or less components than shown in fig. 1, or certain components may be combined, or different components, e.g. the motor controller 3 may further comprise, but is not limited to, a buffer structure or a connection cable, etc.

Control board 22 is located on the side of shield plate 23 facing away from cabinet 10. Control panel 22 may be configured, but is not limited to, having both vehicle control functions and electric machine 1 control functions. For example, control panel 22 can have, but is not limited to, drive torque control, optimal control of braking energy, energy management of the entire vehicle, maintenance and management of the vehicle 1000 network, diagnosis of faults, handling and vehicle 1000 condition monitoring, and control functions for converting ac and dc, among others. In some embodiments, control board 22 may have only motor 1 control functions, i.e., vehicle 1000 may also include a main circuit board with overall vehicle control, which is connected to control board 22.

The shielding plate 23 is provided between the control plate 22 and the drive plate 21, thereby improving the shielding effect of the control plate 22, and enabling signal control of the electric device and improving the operation stability. The shielding plate 23 can separate the control plate 22 from the driving plate 21, i.e., the driving plate 21 and the control plate 22 are provided on opposite sides of the shielding plate 23, respectively. The shielding plate 23 may be a metal member, the shielding plate 23 can accelerate attenuation of electronic noise, the driving plate 21 is prevented from interfering with the control plate 22, the signal transmission reliability of the control plate 22 is high, and the shielding plate 23 can also be used for supporting the control plate 22, thereby fixing the position of the control plate 22 in the motor 1.

The drive plate 21 is located on the side of the shield plate 23 facing the case 10. The drive board 21 is connected to a control board 22, and the control board 22 controls the motor 1 of the vehicle 1000 through the drive board 21. For example, control board 22 sends control signals to drive board 21, and drive board 21 may drive motor 1 to operate at different rotational speeds based on the control signals. The control board 22 may receive signals fed back by the motor 1 of the vehicle 1000 during operation through the communication module, and adjust the rotational speed control of the motor 1 in time. Wherein, the control plate 22 and the driving plate 21 can be connected by conducting members such as wires or connectors.

The motor controller 3 further includes a three-phase adaptor 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 direct current provided by the battery flows into the IGBT module 60 from the direct current bus capacitor 71 through the direct current bus 7, the pulse width modulation of the IGBT module 60 changes the input direct current into the alternating current with the frequency required by the motor 1, and the alternating current 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.

The case 10 and the cover 15 together form a housing chamber 102. The driving plate 21, the shielding plate 23, the control plate 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 accommodating cavity 102, so that on one hand, the driving plate 21, the shielding plate 23, the control plate 22, the three-phase adapter 40, the hall element 50, the IGBT module 60, the dc bus capacitor 71 and the filter 72 can be simultaneously installed by only one motor housing 4, the number of the motor housings 4 is reduced, the whole volume is reduced, the integrated arrangement of the motor housings 4 can be realized, and the miniaturization of the motor controller 3 is facilitated; on the other hand, related functional devices are distributed in the limited internal space of the electric control shell as much as possible, so that the whole machine is reduced in size. 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 drive board 21, the IGBT module 60, and the hall element 50 are accommodated in the second case 106. The shielding plate 23 and the control board 22 are housed in the first housing portion 105 and the second housing portion 106, that is, the shielding plate 23 and the control board 22 span the first housing portion 105 and the second housing portion 106.

Illustratively, in the present embodiment, control board 22 is fixedly connected to shield plate 23, and shield plate 23 is fixedly connected to case 10, thereby improving the reliability of the electrical connection of control board 22. The control board 22 is disposed between the cover and the shielding plate 23, so that the cover and the shielding plate 23 can provide electromagnetic shielding effect to the control board 22 to make the signal received and transmitted by the control board 22 have small fluctuation, improving EMC (Electromagnetic Compatibility, battery compatibility) performance of the motor controller 3. Drive plate 21 fixed connection is on IGBT module 60, and IGBT module 60 and box 10 fixed connection to the security that drive plate 21 and IGBT module 60 electricity are connected is higher.

In some embodiments, the three-phase adaptor 40, the hall element 50, the IBGT module 60 and the driving board 21 are integrally connected to form the first integrated component 20, the dc bus capacitor 71 and the filter 72 are integrally connected to form the second integrated component 70, and the first integrated component 20 and the second integrated component 70 are both fixed on the box 10 and are arranged along the width direction Y of the motor controller 3, so that the high integration of the motor controller 3 is realized, the overall control is facilitated, and the production assembly efficiency is improved.

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 shell 6 form the first shielding cabin 103, so that the shielding effect of the first shielding cabin 103 is improved, meanwhile, due to the arrangement of the shielding wall 231, the shielding wall 231 and the first shielding cabin 103 are partially overlapped in the height direction Z, the size of the motor controller 3 is further reduced, the integration level of the internal structure of the electric control shell 6 is improved, and the structural arrangement of the motor controller 3 is simplified. The shielding plate 23 is provided with a shielding wall 231 provided around the first plug 31 at a position corresponding to the first plug 31. Illustratively, in the present embodiment, the shielding wall 231 may be configured as a semi-surrounding structure, for example, the shielding wall 231 is disposed around the first socket connector 31 in a semi-surrounding manner. In some embodiments, the shielding wall 231 may also be configured as a fully enclosed structure, for example, the shielding wall 231 is disposed around the first plug connector 31 in a fully enclosed manner.

Referring to fig. 5, 8, 10 and 11, fig. 10 is a plan view of the motor controller 3 in fig. 8, with the cover 15, the three-phase cover 16 and the control board 22 omitted; fig. 11 is a plan view of the motor controller 3 in fig. 8, with the cover 15, the three-phase cover 16, the control board 22, and the shield plate 23 omitted. Illustratively, in the present embodiment, the shielding plate 23 is recessed to form a notch 2301 at a position corresponding to the first plug connector 31. Illustratively, in the present embodiment, the surface of the shielding plate 23 facing the driving plate 21 and the surface facing the control board 22 are both extended with the shielding wall 231 along the height direction Z of the motor controller 3 at the notch 2301, so as to form a sealed first shielding compartment 103 between the circuit board, the control board 22 and the casing 10, and better protect the first plug connector 31 from high voltage, so that the motor 1 meets EMC standards. In some embodiments, the surface of the shielding plate 23 facing the driving plate 21 extends outward along the height direction Z of the motor controller 3 at the notch 2301 to isolate the first plug connector 31 from the high-voltage devices such as the driving plate 21, the IGBT module 60, and the three-phase adapter 40.

The through hole 131 exposing the first plug connector 31 is formed in one side, away from the cover body 15, of the box body 10, and the through hole 131 is communicated with the first shielding cabin 103, so that the plug connection direction of the first plug connector 31 is parallel to the height direction Z of the motor controller 3, space is saved, and assembly is convenient. In the present embodiment, the first connector 31 penetrates the side of the case 10 facing away from the cover 15 in the height direction Z of the motor controller 3. Compared with the prior art that the first plug connector 31 is horizontally arranged on the side wall of the box body 10 along the direction vertical to the height Z, the structural design of the first plug connector 31 eliminates the reserved assembly space for the control panel 22 and improves the space utilization rate.

Specifically, the electronic control housing 6 includes a side plate 12. The side plate 12 extends in the height direction Z of the motor controller 3. The first shielding compartment 103 is formed by at least the side plate 12 and the shielding wall 231. Illustratively, in this embodiment, the electronic control housing 6 further includes a bottom plate 11, and a side plate 12 is disposed around an edge of the bottom plate 11. The side plate 12 includes a first side wall 121 and a support wall 123 extending outwardly from the first side wall 121. The supporting wall 123 is located on the side of the shielding plate 23 facing away from the control plate 22, and the supporting wall 123 is provided with a through hole 131. The first shielding compartment 103 is defined by at least the support wall 123 and the shielding wall 231. For example, in some embodiments, the first shielded room 103 is annular, and the shielding wall 231 encloses with the supporting wall 123 to form the first shielded room 103. In other embodiments, the surface of the supporting wall 123 facing the control board 22 is concavely formed with the 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 encloses with the groove wall of the positioning groove 133 to form the first shielding compartment 103.

In the present embodiment, the first plug 31 is provided on the side of the control plate 22 facing the drive plate 21. The supporting wall 123 and the first side wall 121 are formed with a space 132 outside the case 10 to provide an operation space for connection of the first connector 31 and external components, facilitate wiring and assembly, and improve space utilization. In some embodiments, first plug 31 may also be disposed outside the edge of control board 22, such as where first plug 31 is tiled to control board 22. The shielding wall 231 is located between the control panel 22 and the cabinet 10 and forms a first shielding compartment 103 with the control panel 22 and the cabinet 10. Specifically, the shielding wall 231 is located between the control panel 22 and the support wall 123, and forms the first shielding compartment 103 with the control panel 22 and the support wall 123. Thus, on the one hand, the first plug connector 31 can isolate the interference caused by the high-voltage devices such as the driving board 21, the IGBT module 60, the three-phase adapter 40 and the like during operation, and improves the electromagnetic compatibility of the motor 1.

In some embodiments, the side panel 12 further includes a first edge 124 disposed on an outer edge of the support wall 123, a second side wall 122, and a second edge 125 disposed at an end of the second side wall 122 facing the first side wall 121. The first shielding compartment 103 is formed by at least the supporting wall 123, the first edge 124, the second edge 125 and the shielding wall 231.

The first edge 124 is further disposed along an area of the first side wall 121 outside the supporting wall 123, and the first edge 124 is cooperatively connected with the second edge 125. In this embodiment, the first edge 124 and the second edge 125 are fixedly coupled together by screws. In some embodiments, the first edge 124 and the second edge 125 may also be fixedly coupled together by, but not limited to, snap fit, welding, or other means. The electronic control housing 6 further comprises a top plate 14 arranged opposite 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 case 10. The top plate 14, the second side wall 122 and the second edge 125 are connected to form the cover 15.

In some embodiments, the motor controller 3 further 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 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. The second direction is a direction parallel to the plane of the shielding plate 23 and/or the control plate 22, and is parallel to the longitudinal direction X of the motor controller 3. Specifically, control board 22 is generally rectangular in shape and the second direction is the long side direction in the plane of the control board. The second connector 33 passes through the housing 10 and is connected to the motor 1, the second connector 33 being used to detect the angular displacement and the angular velocity of the motor 1. In this embodiment, the second connector 33 is a rotary connector connected to the control board 22.

The second shielding cabin 104 for accommodating the second plug connector 33 is arranged in the electric control shell 6, so that the second plug connector 33 is isolated from high-voltage devices such as the driving plate 21, the IGBT module 60, the three-phase adapter 40 and the like, the second plug connector 33 is better protected from high-voltage interference, and the motor 1 meets EMC standards. Illustratively, in the present embodiment, the housing 10 is provided with the partition 1041 provided around the second plug 33 at a position corresponding to the second plug 33. The partition 1041 may be configured as a semi-surrounding structure, for example, the partition 1041 is disposed around the second plug member 33 in a semi-surrounding manner. In some embodiments, the partition 1041 may also be configured as a fully enclosed structure, e.g., the partition 1041 is disposed about the second plug 33 in a fully enclosed manner. The partition 1041 surrounds the case 10 and the cover 15 to form a second shield room 104. In other embodiments, the housing 10 is recessed to form the second shielded compartment 104. The motor controller 3 further includes a cable 34 connecting the second plug 33 and the control board 22. The cable 34 is located outside the second shielded compartment 104. In some embodiments, the side plates 12 of the case 10 and the shielding plate 23 are spaced apart and form a routing channel 301, and the cable 34 is located in the routing channel 301. The second plug 33 is disposed in the third housing portion 107. The third housing part 107 is close to the motor 1, thereby shortening the wiring between the second plug connector 33 and the three-phase adapter 40 and the motor 1 and improving the space utilization.

The second connector 33 may be fixed to the case 10 to stabilize the structure of the motor controller 3, and the real-time operation state of the motor 1 may be detected through the second connector 33 and fed back to the control board 22, so that the control board 22 may timely adjust the angular displacement and angular velocity of the motor 1 through the driving board 21 to stabilize the running of the vehicle 1000. For example, in the present embodiment, the second connector 33 is connected to the control board 22 via a cable 34. The motor controller 3 further comprises a fixing seat 35 for fixing the second plug connector 33, and the fixing seat 35 is arranged in the region, outside the shielding plate 23, of the box body 10, so that the second plug connector 33 is convenient to assemble, the assembly efficiency of the motor 1 is improved, the compactness of the overall structure of the motor 1 is improved, and the space utilization rate is reduced. The fixing base 35 is provided with a mounting structure, and the fixing base 35 is fixed on the case 10 through the mounting structure. The mounting structure comprises a mounting column and a locking screw, and the mounting structure can also be, but is not limited to, a fixing structure such as a buckle. The fixing base 35 may be fixed to the case 10 by bonding, welding, or the like, and the present utility model is not limited thereto. The holder 35 includes a first mounting bracket 351 mounted within the second shielded compartment 104 and a second mounting bracket 352 disposed outside the second shielded compartment 104. The second connector 33 is mounted on the first mounting 351. The constraint structure 353 for constraining the cable 34 is arranged on the second mounting frame 352, so that the cable 34 can be effectively constrained, the cable 34 is prevented from shaking, the connection stability and reliability are improved, the space for fixing the cable 34 is reduced, the practicability of the fixing seat 35 is further improved, and the wire harness effect is improved. The third case portion 107 protrudes outward toward one side of the motor 1 to mount the second shield compartment 104 and the fixing base 35, thereby providing space utilization of the motor controller 3.

The three-phase adapter 40, the hall element 50 and the IGBT module 60 are all located at one side of the control board 22 facing away from the shielding plate 23, and are sequentially connected 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 disposed on the same side of the electric control housing 6 in the width direction Y of the motor controller 3. The three-phase adapter 40 is electromagnetically isolated from the second plug connector 33 by the second shielding compartment 104. Thus, on the one hand, the three-phase adapter 40 is arranged outside the second shielding cabin 104, so that the second plug connector 33 is isolated from high-voltage interference, the EMC performance of the motor 1 is improved, and the second plug connector 33 is prevented from being disabled due to interference; on the other hand, the three-phase adapter 40 and the second connector 33 are connected with the motor 1 and are arranged close to the motor 1, so that the connecting distance is shortened, the wiring is reasonable and regular, the connection stability and reliability are improved, and the space is saved. The hall element 50 is connected between the three-phase adaptor 40 and the IGBT module 60, so that the output end of the IGBT module 60 is connected with the three-phase copper bar 42, and ac power can be output to the motor 1. The driving board 21 is fixed on the IGBT module 60 and is stacked with the IGBT module 60 in a first direction (i.e. the height direction Z of the motor controller 3), so that the driving board 21 can collect and control high-voltage signals; on the other hand, the rationality of the arrangement of the interfaces of the second plug-in connector 33, the three-phase adapter 40 and the first plug-in connector 31, which are each arranged on the electric control housing 6, is improved, and space is saved.

The IGBT module 60 is located on a side of the driving plate 21 facing the case 10, and is used to support the driving plate 21, thereby fixing the position of the driving plate 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 switching element 40 through the hall element 50, thereby realizing that the IGBT module 60 supplies ac power to the motor 1 through the three-phase switching element 40. The three-phase adapter 40 passes through the hall element 50. The hall element 50 can detect the current and the voltage input to the motor 1, and the driving 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 the control accuracy is improved. For example, in the present embodiment, the three-phase adapter 40 includes an adapter 41, a three-phase copper bar 42, and a magnetic ring 43. The adapter 41 is connected to the hall element 50. The three-phase copper bar 42 is arranged on the side of the adapter 41 facing away from the hall element 50. The magnetic ring 43 is fitted over the three-phase copper bar 42 and fixed to the three-phase copper bar 42 in the width direction Y of the motor controller 3. An opening 1101 is formed in the position, corresponding to the three-phase copper bar 42, of the bottom plate 11 of the box body 10, so that the three-phase copper bar 42 is connected with the wiring of the motor 1. The cover 15 is provided with an operation hole 151 corresponding to the three-phase adapter 40 and communicated with the accommodating cavity 102, so that the three-phase adapter 40 and the motor 1 can be conveniently fixed or detached, and the three-phase adapter 40 can be conveniently maintained or tested. The motor controller 3 further comprises a three-phase cover plate 16, and the three-phase cover plate 16 is fixed on the cover body 15 and covers the operation hole 151, so that on one hand, the dustproof, waterproof and other protective performances of the motor controller 3 are improved; on the other hand, the electronic devices in the motor controller 3 are prevented from interfering with the electronic devices outside the motor controller 3. The IGBT module 60 comprises an output copper bar 62, and the IGBT module 60 is connected with the Hall element 50 through the output copper bar 62; in yet another aspect, an operating space is provided for assembly and disassembly of the three-phase copper bar 42, improving the efficiency of disassembly and assembly, and improving the reliability of the fixed connection.

When the first integrated component 20 is assembled, the magnetic ring 43 is sleeved on the three-phase copper bar 42. Then, the three-phase adapter 40 and the IGBT module 60 are mounted on the hall element 50, and the drive board 21 is fixed to the IGBT module 60. Finally, the first integrated component 20 is fixed to the case 10.

Referring to fig. 12 to 14, fig. 12 is a bottom view of the motor controller 3 in fig. 8, with the cover 15 and the three-phase cover 16 omitted; fig. 13 is a sectional view of the motor controller 3 of fig. 12 taken along the line A-A; fig. 14 is an enlarged view of a portion II of the motor controller 3 in fig. 13. The motor controller 3 further comprises a sampling structure 713. Sampling structure 713 is connected to dc bus capacitor 71 and control board 22, respectively. The dc bus capacitor 71 is provided on the same side of the control board 22 as the drive board 21. The direct-current bus capacitor 71 is provided on one side of the control board 22 in the height direction Z of the motor controller 3, and a sampling structure 713 extends from the direct-current bus capacitor 71 toward one end of the control board 22 and supports the control board 22. Therefore, based on the fact that the sampling structure 713 extends from the direct current bus capacitor 71 towards one end of the control board 22 and supports the control board 22, on one hand, the energy storage piece can input electric energy into the direct current bus capacitor 71 through the direct current bus 7, when the battery of the battery pack supplies power to the motor controller 3, the control board 22 can monitor current and voltage conditions so as to realize high-voltage sampling of the battery, and accuracy and reliability of high-voltage monitoring are improved; on the other hand, the assembly difficulty of the direct-current bus capacitor 71 and the control panel 22 is reduced, the number of structural parts and electronic materials is reduced, and the space utilization rate is improved.

The dc bus capacitor 71 is located on the side of the shield plate 23 facing the case 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 direct-current bus capacitor 71 is located at one side of the shielding plate 23 away from the control board 22, so that the direct-current bus capacitor 71 is prevented from interfering with the control board 22, and the signal transmission reliability of the control board 22 is improved. Illustratively, in the present embodiment, the dc bus capacitor 71 includes a capacitor body 711 and a capacitor supporting portion 712 protruding above the capacitor body 711, the shielding plate 23 is provided with a via 2302 through which the capacitor supporting portion 712 passes, the sampling structure 713 extends from an end of the capacitor supporting portion 712 away from the capacitor body 711, and the control board 22 and the sampling structure 713 are fixed to the capacitor supporting portion 712 by a locking member 716. Thus, on the one hand, the connection distance of the direct-current bus capacitor 71 to the control board 22 is shortened, so that the motor 1 is more compact in the height direction Z, and the direct-current bus capacitor 71 can better support the control board 22; on the other hand, the control panel 22 is convenient to disassemble and assemble, and the connection reliability and stability of the control panel 22 and the direct current bus capacitor 71 are improved; on the other hand, the design of the via 2302 can also provide a positioning function for assembling the dc bus capacitor 71, so as to improve the assembling efficiency and the disassembling efficiency.

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, so that the connection between the circuit board and the direct current bus capacitor 71 is realized. Retaining member 716 stops against aperture 1101 to prevent retaining member 716 from damaging control board 22 and dc bus capacitor 71 during the locking process. Illustratively, in this embodiment, the locking member 716 is configured as a screw. The capacitor support part 712 is provided with a mounting space for mounting the lock nut so that the screw can be screwed with the lock nut. The nut is provided with a locking hole in a threaded connection mode. In some embodiments, the locking aperture may also be disposed directly within the mounting space. In some embodiments, retaining member 716 may also be configured as a catch or other locking structure; or control panel 22 and sampling structure 713 may be joined together by welding.

High voltage devices such as the three-phase adapter 40 and the driving board 21 in the motor controller 3 may generate a large amount of electromagnetic interference, thereby reducing the stability of the motor controller 3 and even failing to meet EMC standards. In order to improve the EMC performance of the motor controller 3, the motor controller 3 further includes the above-mentioned filter 72, and the filter 72 can stabilize and filter the direct current provided by the battery through the filter 72, so that the direct current flowing to the IGBT module 60 fluctuates less, the IGBT module 60 is prevented from being damaged due to too large current fluctuation, the service life of the IGBT module 60 is improved, and the running stability of the motor 1 is improved. The filter 72 and the sampling structure 713 are disposed at 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 at different sides of the dc bus capacitor 71, so as to optimize the structural design of the motor controller 3, and make the motor controller 3 more miniaturized. Specifically, the sampling structure 713 is provided on the front end side of the dc bus capacitor 71 in the longitudinal direction X of the motor controller 3, and is located on the end face of the dc bus capacitor 71 facing the control board 22. The filter 72 is disposed at the rear 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 side plate 12, so as to provide an operation space for the linear bus passing through the box 10 and being plugged into the filter 72, thereby facilitating assembly, having reasonable wiring and saving space.

Referring to fig. 8, 15 and 16, fig. 15 is a partial cross-sectional view of the motor controller 3 and the dc bus 7 in fig. 8; fig. 16 is an exploded view of the filter 72 of the motor controller 3 in fig. 8. The filter 72 includes a filter housing 721 and first and second magnetic rings 722 and 723 disposed within the filter housing 721. The material of the first magnetic loop 722 is different from the material of the second magnetic loop 723. In the present embodiment, the first magnetic ring 722 and the second magnetic ring 723 are disposed on both sides of the filter base 721 in 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 may be disposed at other positions of the filter base 721 according to practical situations, for example, along two sides of the length direction Y of the motor controller 3, etc., which is not particularly limited. The filter 72 further 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 base 721. Thus, on the one hand, the filter 72 includes the first magnetic ring 722 and the second magnetic ring 723 made of different materials, so that different frequency bands can be filtered, the filtering range of the filter 72 is enlarged, and the filtering effect of the filter 72 is improved; on the other hand, X capacitor 724 is used to suppress differential mode interference, providing low impedance to differential mode electromagnetic interference between positive and negative, so that differential mode electromagnetic interference flows back into control board 22, and Y capacitor 725 is used to suppress common mode interference, providing a low impedance loop for common mode electromagnetic interference, so that common mode electromagnetic interference flows back into control board 22; on the other hand, the filter 72 is provided with a first magnetic ring 722 and a second magnetic ring 723 which are made of different materials, and two Y capacitors 725 are connected with an X capacitor 724 in parallel, so that the filter 72 can form a two-stage filter 72, the filtering effect is improved, and the EMC performance of the motor controller 3 is met; in another aspect, the first magnetic ring 722, the second magnetic ring 723, the X capacitor 724 and the two Y capacitors 725 are disposed in the filter base 721 and integrated into a whole, thereby improving the integration level of the filter 72, saving the space layout and improving the disassembly and assembly efficiency.

In this embodiment, two Y capacitors 725 and X capacitor 724 may be connected in parallel. The filter 72 includes a connection plate 726 that connects 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, so that the dismounting efficiency is improved. The connection plate 726 and the two Y capacitors 725 and X capacitors 724 may be fixedly connected together by, but not limited to, welding, locking structures, and the like. In some embodiments, two Y capacitors 725 and X capacitor 724 may also be connected in series.

The first magnetic loop 722 is used to cancel low frequency interference on the dc side, and the second magnetic loop 723 is used to cancel high frequency interference on the dc side. Illustratively, in the present embodiment, the first magnetic ring 722 is the ferrite magnetic ring 43, the second magnetic ring 723 is the nano amorphous magnetic ring 43, and the nano amorphous magnetic ring 43 is greatly affected by frequency, so that the filtering effect on the low frequency band is better, and the ferrite magnetic ring 43 is less affected by frequency, so that 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 may be set according to the filtering effect required by the motor controller 3, and the present utility model is not limited in particular.

The electric control shell 6 is provided with the direct current bus interface 101, and the direct current bus interface 101 extends along the height direction Z of the motor controller 3, so that the occupied space of the direct current bus 7 running on the height direction Z of the vehicle 1000 is reduced. Illustratively, in the present embodiment, the first magnetic ring 722 is shaped like a Chinese character '8'. The second magnetic ring 723 is O-shaped. The first magnetic ring 722 is provided with two first insertion holes 7221 in the height direction Z of the motor controller 3. The second magnetic ring 723 is provided with two second insertion holes 7231, and the second insertion holes 7231 are arranged in communication with the direct current bus interface 101 and the second insertion holes 7231 and are arranged opposite to the direct current bus interface 101. The motor controller 3 also includes a transfer copper bar 714. The switching copper bar 714 extends out of the direct current bus capacitor 71 and passes through the first jack 7221, and the direct current bus 7 passes through the direct current bus interface 101 and the second jack 7231 and is connected with the switching copper bar 714, so that the direct current bus capacitor 71 is connected with the direct current bus 7. The dc bus 7 further includes a bus copper bar 750, and the bus copper bar 750 is disposed at an end of the dc bus 7. The bus copper bar 750 sequentially passes through the direct current bus interface 101 and the second magnetic ring 723 to be connected with the switching copper bar 714. Busbar copper 750 includes positive busbar copper and negative busbar copper. The direct current bus interface comprises a positive bus interface and a negative bus interface. The transfer copper bars 714 include positive transfer copper bars 714 and negative transfer copper bars 714. The positive busbar copper bar passes through the positive busbar interface and is connected with the positive switching copper bar 714, and the negative busbar copper bar passes through the negative busbar interface and is connected with the negative switching copper bar 714. The positive bus bar copper bars and the negative bus bar copper bars are arranged at intervals along the height direction Z of the motor controller 3 and are inserted into the first jack 7221. The positive transfer copper bars 714 and the negative transfer copper bars 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 correspondingly. The direct current bus 7 is connected with the switching copper bar 714 in the height direction Z of the motor controller 3, so that the occupied space of the filter 72 in the length direction X of the motor controller 3 is reduced, and the whole volume of the filter 72 is reduced.

Through holes 1201 penetrating through the accommodating cavity 102 are formed in the positions, corresponding to the filters 72, of the side plates 12 of the box body 10, so that the adapter copper bar 714 and the busbar copper bar 750 can be conveniently fixed or detached, and the adapter copper bar 714 and the direct current busbar 7 copper bar can be conveniently maintained or tested. Two alignment holes 7211 are provided on the side of the filter housing 721 facing away from the linear bus capacitor. Two alignment holes 7211 are located at the junction of busbar 750 and transfer busbar 714, opposite to through hole 1201. The two alignment holes 7211 are arranged in order along the height direction Z of the motor controller 3. The motor controller 1 further comprises a bus cover plate 17, and the bus cover plate 17 is fixed on the box body 10 and seals the through hole 1201, so that on one hand, the dustproof, waterproof and other protective performances of the motor controller 3 are improved; on the other hand, the electronic devices in the motor controller 3 are prevented from interfering with the electronic devices outside the motor controller 3; on the other hand, an operation space is provided for assembling and disassembling the direct current bus 7, the disassembling and assembling efficiency is improved, and the reliability of the fixed connection is improved.

The motor controller 3 further includes a dc mount 80 connecting the dc bus capacitor 71 and the IGBT module 60. Specifically, the motor controller 3 further includes a dc output copper bar 715 disposed on the dc bus capacitor 71, 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 mount 80, so as to connect the dc bus capacitor 71 and the IGBT module 60. The input copper bar 61 and the dc output copper bar 715 may be secured to the dc mount 80 by locking screws. The input copper bar 61 and the dc output copper bar 715 may also be fixedly connected together by welding or other means, and the present utility model is not particularly limited. The switching copper bar 714 extends out of the direct current bus capacitor 71 towards the IGBT module 60 and is arranged on the same side of the direct current bus capacitor 71 with the switching copper bar 714, so that a connecting line is shortened, and the space utilization rate is improved.

Referring to fig. 2, 8, 12, 17 and 18, fig. 17 is a sectional view of the motor controller 3 of fig. 12 taken along line B-B; fig. 18 is a sectional view of the motor controller 3 in fig. 12 taken along line C-C. The motor controller 3 further includes an IGBT heat dissipation pipe 91, the IGBT heat dissipation pipe 91 includes a first channel 911, a second channel 912, and a third channel 913 communicating between the first channel 911 and the second channel 912, the first channel 911 and the second channel 912 communicating to the outside, respectively, the third channel 913 being formed between the case 10 and the IGBT module 60. Illustratively, in the present embodiment, the IGBT module 60 includes the IGBT plate 65 and the heat dissipation pins 66 disposed on the surface of the side of the IGBT plate 65 facing away from the driving board 21, so as to increase the contact area between the IGBT module 60 and the cooling fluid, and increase the heat dissipation efficiency of the IGBT module 60. In some embodiments, the IGBT module 60 may include only the IGBT board 65, thereby simplifying the structure of the overall IGBT module 60 and saving space layout.

It should be noted that, the first channel 911 and the second channel 912 may be interface areas for pipeline connection on the motor controller 3; or an area surrounded by a pipeline connected to the motor controller 3.

It can be appreciated 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 transferred to the IGBT module 60 to be conducted out through the IGBT heat dissipation pipeline 91, and the rest of the heat can be dissipated through the air. The three-phase switching piece 40 is connected with the IGBT module 60 through the Hall element 50, so that most of heat generated by the three-phase switching piece 40 can be transferred to the IGBT module 60 through the Hall element 50, and is led out through the IGBT heat dissipation pipeline 91, and the rest of heat can be dissipated through the air and the box 10, so that the heat dissipation effect of the three-phase switching piece 40 is improved. The direct current bus capacitor 71 is connected with the IGBT module 60 through the direct current mount 80, so the heat generated by the direct current bus capacitor 71 can be partially transferred to the IGBT module 60 through the direct current mount 80, and the heat is led out through the IGBT heat dissipation pipeline 91, and the rest of the heat can be dissipated through the air, the box 10 and the heat conduction silicone grease film arranged on the direct current bus capacitor 71, so the heat dissipation effect of the direct current bus capacitor 71 is improved.

In this embodiment, a built-in pipe is provided in the case 10, and the built-in pipe and the IGBT board 65 form a third channel 913. The built-in pipeline is formed by integrally die-casting the box body 10, so that the structural design of the box body 10 is optimized, and the water leakage risk of the third channel 913 is reduced. 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 pipe 94. The external pipe 94 and the first channel 911 are provided at the same side of the case 10, thereby improving assembly and disassembly efficiency and facilitating maintenance. The junction of third passageway 913 and flowing back pipeline is provided with drainage structure 915 to can smoothly and fast arrange the liquid of third passageway 913 to the flowing back pipeline, in order to improve the radiating effect of IGBT module 60.

In some embodiments, the first channel 911 and the second channel 912 are respectively connected to two sides of the third channel 913 in the length direction X (i.e. the second direction) of the motor controller 3, and by designing the structure of the box 10 and the arrangement 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 two sides of the third channel 913, the IGBT heat dissipation pipeline 91 can be obtained without adopting a friction welding process between the box 10 and the IGBT module 60, thereby simplifying the processing process, providing the production efficiency and reducing the cost.

Illustratively, the transmission 2, the motor 1 and the motor controller 3 share one cooling circuit 90, thereby achieving a high integration of the cooling circuit 90 and saving space, thereby reducing the overall volume of the motor controller 3 assembly. The cooling pipeline 90 comprises an IGBT heat dissipation pipeline 91, a motor heat dissipation pipeline, a transmission pipeline and a connecting pipeline for communicating the IGBT heat dissipation pipeline 91 with the motor heat dissipation pipeline and the transmission pipeline. Specifically, the cooling fluid flows into the heat dissipation pipeline of the motor controller 3 from the first channel 911, flows out from the second channel 912, flows out from the external pipeline 94 to the oil cooler, and is led into the motor 1 and the transmission 2 through the motor heat dissipation pipeline and the transmission pipeline respectively, so as to dissipate heat of the motor 1 and the transmission 2, and finally flows out from the oil cooler after passing through the interior of the motor 1 and the transmission 2. In some embodiments, the IGBT radiator line 91 and the motor radiator line and the transmission line may be provided independently of each other to improve the heat radiation efficiency to the motor 1 and the transmission 2. The cooling fluid comprises at least one cooling medium. The cooling medium may be, but is not limited to, a liquid, gas, oil, or the like. Illustratively, in the present embodiment, the cooling fluid is water, thereby reducing the cost and improving the heat dissipation effect.

The motor controller 3 further includes a temperature sensor 95, where the temperature sensor 95 is disposed at a position of the case 10 corresponding to the first channel 911, and is used to detect a temperature of the fluid in the first channel 911, thereby improving measurement accuracy of the temperature sensor 95 and reducing water leakage loss. Specifically, in the present embodiment, the bottom of the case 10 is convexly provided with the mounting block 18. 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 connection channel is communicated with the first mounting hole 181 and the second mounting hole 182 to realize that the temperature sensor 95 can be directly contacted with 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 the arrangement of the first channel 911.

The motor controller 3 improves the space utilization rate inside the motor controller 3 by changing the assembly mode of the direct current bus 7, optimizing the layout and assembly of a high-voltage sampling structure and other elements in the box 10, and the like, so that the volume of the whole motor controller 3 is only 6.2L, the highest power of the power assembly 200 is 270KW, and the power density of the power assembly 200 is 43.55KW/L.

Referring to fig. 1 to 18, in the process of assembling the motor controller 3, the first integrated component 20 and the second integrated component 70 are assembled first. After the first integrated component 20 and the second integrated component 70 are fixed on the box 10, the fixed shielding plate 23 is installed, and the shielding plate 23 can isolate electromagnetic interference generated when the direct current bus capacitor 71 and the IGBT module 60 work. The control board 22 and the rotary wire harness are installed, the control board 22 is installed on one side of the shielding plate 23, which is away from the driving plate 21, the first plug connector 31 is connected through a ping needle and transmits signals, and the second plug connector 33 is connected with the control board 22 through the rotary wire harness. Finally, the cover body 15, the three-phase cover plate 16 and the bus cover plate 17 are arranged on the box body 10, and the motor controller 3 is assembled. When the second integrated component 70 is assembled, the filter 72 passes through the transfer copper bar 714 extending out of the dc bus capacitor 71 along the width direction Y of the motor controller 3, so as to realize the assembly of the dc bus capacitor 71 and the filter 72. The direct current input by the direct current bus 7 is transmitted to the IGBT module 60 through the direct current bus capacitor 71.

The power assembly 200 provided by the utility model shortens the length of the electric control shell 6 and reduces the volume of the power assembly 200 by adjusting the installation mode of the direct current bus 7. The shielding plate 23 and the box body 10 are combined into the first shielding cabin 103 through structural design so as to shield the first plug connector 31, thereby avoiding developing an additional shielding cover and improving the space utilization rate. The case 10 of the electric control housing 6 is provided with a second shielding compartment 104 for accommodating the second plug connector 33, so that high-voltage interference to the second plug connector 33 can be reduced. The direct current bus capacitor 71 is fixedly connected with the control panel 22 through the sampling structure 713 for high-voltage sampling, so that the high-voltage sampling function of the battery is achieved, the function of fixing the control panel 22 is also achieved, the cost and the space are saved, and the control panel 22 is also convenient to detach. The IGBT heat dissipation pipeline 91 enclosed by the box 10 and the IGBT module 60 and the position adjustment using the first channel 911 and the discharge pipeline are designed in the motor housing 4, so that the IGBT heat dissipation pipeline 91 can be obtained without friction welding of the box 10, and the cost is reduced. The temperature sensor 95 is placed outside the controller and extends into the first channel 911, so that the sampling precision is enhanced, and the controller can be continuously used by replacing only one sensor after the sealing failure is avoided. By adjusting the installation position of the motor controller 3, the motor controller 3 is installed at the connecting corner 300 of the motor 1 and the transmission 2 and is overlapped with the motor 1 and the transmission 2, so that the motor controller 3 fully utilizes the residual space between the motor 1 and the transmission 2, the volume of the power assembly 200 is reduced, and the motor controller 3 does not occupy the height of the power assembly 200 in the height direction Z and reasonably utilizes the space above the transmission half shaft 8. In addition, through optimizing the internal structure of the motor controller 3, the volume and the mass of the motor controller 3 are reduced, and the power density of the whole machine of the motor controller 3 is improved.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will appreciate, modifications will be made in the specific embodiments and application scope in accordance with the idea of the present utility model, and the present disclosure should not be construed as limiting the present utility model.

Claims

1. A powertrain, comprising:

A motor;

A transmission connected to the motor and forming a corner at the connection;

A motor controller disposed at the corner portion and overlapping the motor and the transmission; and

The support frame is along the direction of height of power assembly, the one end of support frame is connected motor controller, the other end of support frame is connected the derailleur, the support frame with the motor interval sets up.

2. The powertrain of claim 1, wherein the transmission includes an input-side member drivingly connected to the motor and an output-side member drivingly connected to the input-side member, the input-side member being disposed adjacent to the motor, the motor controller overlapping the motor and the output-side member, the support frame being connected to the output-side member.

3. The powertrain of claim 2, wherein the support bracket is mounted to a side wall of the output side member that faces the motor.

4. The powertrain of claim 1, wherein the motor controller further includes a first edge portion suspended relative to the motor and the transmission, the first edge portion having a first support mounting portion thereon, the transmission having a first support mating portion thereon, one end of the support bracket being connected to the first support mounting portion, the other end of the support bracket being connected to the first support mating portion.

5. The locomotion assembly of claim 4, wherein the first support mounting portion and the first support engaging portion are arranged in sequence along the height direction of the locomotion assembly.

6. The locomotion assembly of claim 4, wherein the support frame comprises a first support plate and a second support plate connected with the first support plate, the first support plate being provided with a first mounting position correspondingly connected with the first support mounting part; the second supporting plate is provided with second installation positions correspondingly connected with the first supporting matching parts, and the number of the first installation positions is equal to or greater than that of the second installation positions.

7. The powertrain of claim 6, wherein the support frame further comprises a protective plate protruding from an edge of the first support plate and/or the second support plate and forming a protective slot with the first support plate and/or the second support plate, a notch of the protective slot facing away from the transmission in a width direction of the powertrain.

8. The powertrain of claim 4, wherein the motor controller further includes a second edge portion coupled to the first edge portion, the second edge portion overlapping the motor, a second support mounting portion disposed on the second edge portion, and a second support mating portion disposed on the motor that mates with and secures the second support mounting portion.

9. The powertrain of claim 1, wherein a highest point of the motor controller is lower than a highest point of the motor and/or a highest point of the transmission along a height direction of the powertrain.

10. A vehicle comprising a body and a powertrain as claimed in any one of claims 1 to 9 mounted to the body.