CN211481037U - Sealed drive assembly of motor tip embedment and vehicle - Google Patents

Abstract

The utility model provides a motor end encapsulated driving assembly and a vehicle, which comprises three single-phase terminals, wherein the single-phase terminals are provided with a first wiring part at one end of a motor installation cavity, the single-phase terminals are provided with a second wiring part at one end of a control installation cavity, the first wiring part is connected with a stator, and the second wiring part is connected with a motor control device; the end face of the partition wall facing the motor installation cavity is filled with pouring sealant, and the pouring sealant covers the first wiring portion. The potting adhesive is filled on the end face of the partition wall facing the motor installation cavity, the potting adhesive covers the first wiring portion, and the first wiring portion is used for being connected with the wiring end of the stator, so that the potting of the wiring end of the first wiring portion and the wiring end of the stator is sealed, the protection performance is effectively improved, and waste heat can be efficiently conducted to the partition wall.

Description

Sealed drive assembly of motor tip embedment and vehicle

Technical Field

The utility model relates to a new forms of energy field especially relates to an inclosed drive assembly of motor tip embedment and vehicle.

Background

The new energy vehicle has the characteristics of environmental protection, small pollution and the like because the new energy vehicle does not burn gasoline or diesel oil to generate power, and under the powerful popularization and application of new energy power generation such as hydroenergy, wind energy, solar energy, nuclear energy and the like, a plurality of new energy vehicles are gradually popularized and applied, such as new energy electric cars, new energy electric coaches, new energy electric trucks, new energy electric cleaning vehicles, new energy electric rail vehicles, new energy electric flying vehicles, new energy electric shipping vehicles and the like.

The new energy vehicle is generally provided with a battery, a motor control device, a motor and a power generation device, wherein a power tube in the motor control device receives direct current output by the battery, inverts the direct current into alternating current and outputs the alternating current to the motor, and then the motor outputs rotary driving force to drive the power generation device such as wheels, blades and the like to drive the vehicle to move.

And along with vehicle to the integration of drive assembly motor and motor control device, it can further optimize and reduce device occupation space to vacate more spaces and supply to take the space, battery space etc. and use, when motor and motor controller are integrated, need consider connection structure and relevant layout optimization between motor and the motor controller, need consider the cooling of motor and the cooling of motor controller together, and relevant electrical connection structure's optimal arrangement, and still need consider the assembly convenience of device, just can realize that the drive assembly high efficiency is integrated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor installation cavity tip embedment inclosed drive assembly.

A second object of the present invention is to provide a vehicle equipped with the above-mentioned drive assembly.

In order to realize the first purpose of the utility model, the utility model provides a driving assembly, which comprises a casing, a motor control device, a bearing, a rotor and a stator, wherein a cavity is arranged in the casing along the axial direction, the inner wall of the casing is provided with a partition wall along the radial direction, the partition wall divides the cavity into a motor installation cavity and a control installation cavity, the bearing is arranged on the partition wall, the rotor is arranged in the motor installation cavity and connected with the bearing, the stator is arranged in the motor installation cavity and positioned outside the rotor, and the motor control device is arranged in the control installation cavity; the driving assembly further comprises three single-phase wiring terminals, a first wiring part is arranged at one end of the motor mounting cavity of each single-phase wiring terminal, a second wiring part is arranged at one end of the control mounting cavity of each single-phase wiring terminal, the first wiring part is connected with the stator, and the second wiring part is connected with the motor control device; the end face of the partition wall facing the motor installation cavity is filled with pouring sealant, and the pouring sealant covers the first wiring portion.

It can be seen from the above-mentioned scheme that, through the space of the axial rear end that utilizes the motor, utilize the interval setting of bulkhead and the arrangement of bearing, make the rotor rotationally set up in the motor installation cavity, and motor control unit then sets up in the control installation cavity, and utilize three single phase terminal to pass the setting of bulkhead, connect between motor control unit and stator, again with the pouring sealant fill on the terminal surface of bulkhead towards the motor installation cavity, make the pouring sealant cover outside first wiring portion, first wiring portion is used for being connected with the wiring end of stator, thereby realize the embedment of the wiring end to first wiring portion and stator airtight, thereby effectively improve protectiveness, also can conduct used heat to bulkhead department high-efficiently.

Further, in an axial projection of the bearing, the three first wiring portions are located between the bearing and the stator.

Therefore, the three single-phase wiring terminals are uniformly positioned between the bearing and the axial projection of the stator, and the operation space is reserved between the bearing and the stator, so that the wiring terminals of the stator and the single-phase wiring terminals can be conveniently connected.

The bearing is arranged in the mounting ring wall, and the three single-phase binding posts are all positioned on the periphery of the mounting ring wall; the pouring sealant is filled among the installation annular wall, the partition wall and the inner wall of the machine shell.

It is thus clear that through the stable installation of installation rampart to the bearing, improve the operating stability of motor, three single-phase terminal all is located the periphery of installation rampart simultaneously, the wiring end installation location of the stator of also being convenient for, also makes the casting glue fill accurately between the inner wall of installation rampart, spacing and casing, makes the used heat that the bearing produced also can pass through the casting glue conduction.

The further scheme is that the single-phase terminal is located the periphery wall department of installation rampart, and the periphery wall of installation rampart is provided with first groove of dodging in single-phase terminal department.

Therefore, the first avoiding groove can be used for positioning the wiring end of the stator, and layout space is optimized, so that wiring convenience and reliability are improved.

The bearing is characterized in that the bearing is provided with a bearing seat, a bearing seat and a partition wall, wherein the bearing seat is provided with a bearing seat, a bearing seat and a bearing seat, and the bearing seat is provided with a bearing seat; the pouring sealant covers the three wiring holes and the three threading holes.

From top to bottom, the threading hole is used for supplying the wiring of some sensing devices to pass, like temperature sensor, and the wiring hole is used for single-phase wiring post to pass to improve the isolation between motor installation cavity and the control installation cavity, dodge mutual interference.

A second avoidance groove is formed in the first end wall, facing the motor installation cavity, of the partition wall, and extends from the wiring hole to the stator; the wiring end of the stator is located at the second avoiding groove and connected with the first wiring portion, and the potting adhesive covers the wiring end of the stator.

In a further aspect, the stator includes windings, and the potting compound covers ends of the windings adjacent to the partition walls.

From the top down, the second avoiding groove can be used for placing the lead and the wiring terminal of the stator, so that the layout space is optimized, and the end parts of the wiring terminal, the lead and the winding of the stator are positioned by using the pouring sealant.

A further scheme is, drive assembly includes the three-phase connection terminal, and the three-phase connection terminal includes wiring pedestal and three single-phase terminal, the wiring pedestal is cylindricly to extend, and is three single-phase terminal follows the axial of wiring pedestal is arranged, and is three single-phase terminal sets up the periphery of wiring pedestal, single-phase terminal is in the axial both ends of wiring pedestal are provided with first wiring end and second wiring end respectively, first wiring end with the stator is connected, the second wiring end with motor control device connects.

It is thus clear that, set up in the periphery of wiring pedestal through three single-phase terminal, then three single-phase terminal can be connected corresponding the wiring end of stator, optimize wiring overall arrangement then to spaces such as bearing can be placed to the space between the three single-phase terminal, thereby improve structural layout compactness.

A further scheme is that a liquid cooling runner is arranged on the outer wall of the machine shell, an interval cooling groove is formed in the partition wall, and the interval cooling groove is communicated with the liquid cooling runner.

Therefore, the liquid cooling flow channel of the machine shell is communicated with the interval cooling grooves of the partition walls, so that waste heat of the bearing and waste heat of the rotary transformer can be rapidly transmitted to the machine shell from the partition walls, the heat conduction efficiency is improved, and the running performance of the driving assembly is improved.

In order to realize the second objective of the present invention, the present invention provides a vehicle, including the driving assembly according to the above-mentioned scheme.

Drawings

Fig. 1 is a block diagram of an embodiment of a drive assembly of the present invention.

Fig. 2 is a block diagram of an embodiment of the drive assembly of the present invention from another perspective.

Figure 3 is an exploded view of an embodiment of the drive assembly of the present invention.

Fig. 4 is a structural diagram of the housing on one side of the motor installation cavity in the embodiment of the driving assembly of the present invention.

Fig. 5 is a structural diagram of the housing on one side of the control installation cavity in the embodiment of the driving assembly of the present invention.

Fig. 6 is a block diagram of a three-phase wire holder according to an embodiment of the present invention.

Fig. 7 is a block diagram of a three-phase wire holder at another viewing angle in an embodiment of the drive assembly of the present invention.

Fig. 8 is an exploded view of a three-phase wire holder in an embodiment of the drive assembly of the present invention.

Fig. 9 is a structural view of the outer peripheral wall of the housing in the embodiment of the driving assembly of the present invention.

Fig. 10 is a radial cross-sectional view of an embodiment of the drive assembly of the present invention at the spacer wall.

Fig. 11 is a cross-sectional view of an embodiment of the drive assembly of the present invention in an axial direction at a three-phase wire holder.

Fig. 12 is a block diagram of a three-phase wire holder and a motor control device in an embodiment of the drive assembly of the present invention.

Fig. 13 is an exploded view of a three-phase wire holder and a motor control device in an embodiment of a drive assembly of the present invention.

Fig. 14 is an exploded view of a power tube device in an embodiment of the drive assembly of the present invention.

Fig. 15 is a radial cross-sectional view of an embodiment of the drive assembly of the present invention at the power tube.

Fig. 16 is an exploded view of a laminated busbar assembly according to an embodiment of the driving assembly of the present invention.

Fig. 17 is a structural view of the motor control device in the embodiment of the driving assembly of the present invention, after the main circuit board is omitted.

Fig. 18 is a view of the drive assembly of the present invention shown in a side view from the rear of the axle with the cover omitted.

Fig. 19 is an exploded view of the motor control device and the outlet assembly of an embodiment of the drive assembly of the present invention.

Fig. 20 is a cross-sectional view of an embodiment of the drive assembly of the present invention taken along the axial direction.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Drive assembly embodiment:

referring to fig. 1 to 3, the driving assembly includes a casing 1, a cover 18, a casing 14, a motor control device 3, a bearing 17, a rotor 16 and a stator 15, referring to fig. 4 and 5, and referring to fig. 11, the casing 1 is disposed in a cylindrical shape, a cavity is disposed in the casing 1 along an axial direction, a partition 11 is disposed in a radial direction on an inner wall of the casing 1, the partition 11 divides the cavity into a motor mounting cavity 121 and a control mounting cavity 122, the partition 11 is disposed with a mounting hole 111 along an axial line in a middle portion, the partition 11 is disposed with a mounting ring wall 112 extending toward the motor mounting cavity 121 at an outer periphery of the mounting hole 111, the mounting ring wall 112 and the partition 11 form a mounting step at an inner side, the bearing 17 (a structure not specifically shown) is disposed in the mounting ring wall 112, the partition 11 is disposed with three wire connection holes 113 and three threading holes 114 therethrough, a diameter of the wire holes 113 is greater than the threading holes 114, the three wire holes 113, mounting rampart 112 is provided with the first groove 116 of dodging in every wiring hole 113 department, the first groove 116 of dodging is the arc indent setting, the partition wall 11 is provided with three second groove 115 of dodging towards the first endwall of motor installation cavity 121, the second is dodged the extending direction slope in warp and is arranged of groove 115, two adjacent second are dodged the extending direction in groove 115 and are acute angle (preferred 60 degrees) contained angle setting, the second dodges groove 115 and extends towards inner wall and stator 15 of casing 1 from wiring hole 113, the second dodges the width in groove 115 and is the same with wiring hole 113's diameter. The cover 18 covers the control installation cavity 122 and is fixedly connected with the machine shell 1.

At a control installation cavity 122 on the opposite side of the motor installation cavity 121, a positioning annular wall 117 is arranged on the periphery of the installation hole 111 of the partition wall 11 in an extending manner towards the control installation cavity 122, the positioning annular wall 117 is located on a second end wall of the partition wall 11 towards the control installation cavity 122, three installation platforms 118 are arranged on the outer side of the positioning annular wall 117 of the partition wall 11, the cross sections of the installation platforms 118 are arranged in an arc shape, hollow parts are arranged in the middle of the installation platforms 118, one installation platform 118 is located between two adjacent wiring holes 113, fixing holes 119 are arranged on the installation platform 118 close to the inner side, and the three fixing holes 119 are also uniformly distributed along the circumferential direction.

Referring to fig. 6 to 8 and with reference to fig. 11, the three-phase connector holder 2 includes a connector holder body 21 and three single-phase connectors 22, the connector holder body 21 can extend substantially in a cylindrical shape, the connector holder body 21 is made of an insulating material such as plastic by injection molding, the connector holder body 21 includes a middle ring portion 211, three outer connection portions 212 and three inner connection portions 213, the middle ring portion 211 is annularly arranged and surrounds a connector slot 241, an annular convex edge is disposed on the periphery of the middle ring portion 211, the middle ring portion 211 and the annular convex edge form an annular mounting step 242, the magnetic ring 28 is disposed at the mounting step 242, the inner connection portions 213 extend from the middle ring portion 211 to the connector slot 241, the three inner connection portions 213 are uniformly arranged along the circumferential direction, the outer connection portions 212 extend from the middle ring portion 211 to the connector slot 241, and the three outer external portions 212 not only extend outwards along the axial direction, but also extend outwards along the radial direction, the three outer external portions 212 are uniformly arranged along the circumferential direction, and one outer external portion 212 and one inner connection portion 213 are arranged along the same radial surface.

The single-phase terminal 22 is arranged to extend in the axial direction, the single-phase terminal 22 includes a connection portion 221, a first terminal 222 and a second terminal 223, the connection portion 221 is connected between the first terminal 222 and the second terminal 223, the connection portion 221 is arranged to be bent inward from the first terminal 222 toward the second terminal 223, the first terminal 222 and the second terminal 223 are respectively arranged in a cylindrical shape and provided with a connection hole, the single-phase terminal 22 passes through the middle ring portion 211, the first terminal 222 is located at the outer connection portion 212, the second terminal 223 is located at the inner connection portion 213, the three single-phase terminals 22 are connected with the middle ring portion 211, the outer connecting portion 212 and the inner connecting portion 213 through a secondary injection molding process, then the middle ring portion 211, the outer connecting portion 212 and the inner connecting portion 213 surround the single-phase terminals 22 to achieve corresponding insulation, and the first terminals 222 and the second terminals 223 are respectively located at two axial ends of the terminal base body 21. In the axial projection of the wire connection base body 21, the three first terminals 222 and the three first terminals 222 are located on the periphery of the wire connection groove 241, and the three second terminals 223 are located in the wire connection groove 241. The external connection portion 212 is provided with a blocking wall 214 at the outer periphery of the first terminal 222, and the blocking wall 214 is arranged to extend in an arc shape.

A binding clip 23 is further provided at the first terminal 222, the binding clip 23 is provided with a connecting hole for connecting and fitting with the first terminal 222, and a U-shaped clip portion 232 is further provided. Also provided in the wire connection groove 241 are three mounting portions 26, the three mounting portions 26 being evenly distributed in the axial direction, the mounting portions 26 being located on one side of the second terminal 223 in the circumferential direction.

Referring to fig. 9 and 10, a liquid cooling flow channel is provided on an outer wall of the casing 1, the liquid cooling flow channel includes a motor cooling tank 139 and a control cooling tank 132, the motor cooling tank 139 is located on an outer wall of the motor mounting cavity 121, the control cooling tank 132 is located on an outer wall of the control mounting cavity 122, heat conduction columns are respectively provided in the motor cooling tank 139 and the control cooling tank 132, so as to increase a heat conduction area, a plurality of spaced cooling tanks 133 are provided in the partition wall 11, and the plurality of spaced cooling tanks 133 are circumferentially distributed. The interval cooling groove 133 is provided with an opening at an outer wall while being kept closed within the partition wall 11, the interval cooling groove 133 is located between the motor cooling groove 139 and the control cooling groove 132, and an outer end portion of the interval cooling groove 133, an outer end portion of the motor cooling groove 139 and an outer end portion of the control cooling groove 132 communicate.

Since the plurality of spaced cooling grooves 133 extend toward the bearing 17 and need to escape from the first terminal 222 and the fixing hole 114, the different spaced cooling grooves 133 are different in depth, and the circumferential length of the outer end portion of the spaced cooling groove 133 is greater than the circumferential length of the inner end portion of the spaced cooling groove 133. The outer end of interval cooling bath 133 and the outer end of liquid cooling runner all are uncovered arrangement, and the outer wall of casing 14 lid casing 1, casing 14 are located the outside of interval cooling bath 133 and liquid cooling runner, realize then that the outer end of interval cooling bath 133, the outer end of motor cooling bath 139 and the outer end of control cooling bath 132 communicate each other, and the outer end of interval cooling bath 132 is provided with mounting groove 1321 in both sides department.

A flow guide baffle 134 is arranged in the spaced cooling groove 133, the flow guide baffle 134 is a straight piece and extends from outside to inside, a flow guide groove 1343 is arranged at the outer end of the flow guide baffle 134, the flow guide groove 1343 is close to the outer end of the spaced cooling groove 133, clamping protrusions 1341 are arranged on two sides of the flow guide groove 1343 of the flow guide baffle 134, the clamping portions are located at the clamping protrusions 1341, the clamping portions of the clamping protrusions 1341 are located in the mounting grooves to achieve limit fit, a certain flow space is reserved between the inner end 1344 of the flow guide baffle 134 and the inner end of the spaced cooling groove 133, a through hole 1342 is arranged in the middle of the flow guide baffle, the through hole 1342 is used for flowing cooling liquid, when the cooling liquid flows through the outer end of the spaced cooling groove 133, the flow direction can be comprehensively formed by the flow guide baffle 134, the through hole 1342 and the flow into the inner end of the spaced cooling.

The outer wall of the machine shell 1 is provided with a flow channel opening 135, the flow channel opening 135 is close to the control installation cavity 122, the outside of the flow channel opening 135 is connected with an interface module 137, the interface module 137 is used for connecting a liquid cooling circulation system, the outer wall of the machine shell 1 is provided with an interface 136, the interface 136 is located on one side of the motor installation cavity 121, and the interface 136 and the flow channel opening 135 are both communicated with a liquid cooling flow channel.

Referring to fig. 11 in conjunction with fig. 20, the driving assembly further includes a chamber cover 25 and a resolver 27, the resolver 27 is disposed in the mounting hole 111, the resolver 27 is disposed on a side of the bearing 17 close to the control mounting cavity 122, a rotation shaft of the rotor 16 is connected to the resolver 27, and the resolver 27 is electrically connected to the motor control device 3. The chamber cover 25 covers the mounting hole 111 and is connected with the partition 11, a baffle is arranged in the middle of the chamber cover 25 and is in a detachable design, the chamber cover 25 covers the rotary transformer 27 on one side of the control mounting cavity 122, an interface groove is formed in the chamber cover 25, a signal connecting terminal 252 is arranged in the interface groove, a connecting interface of the rotary transformer 27 is connected with the signal connecting terminal 252, a signal connecting seat 435 is arranged on the corresponding position of the main circuit board 43, the signal connecting terminal 252 is located between the single-phase connecting end and the positive and negative connecting ends, and the signal connecting terminal 252 is conveniently connected with the signal connecting seat 435.

And the three-phase wire holder 2 is mounted to the partition wall 11, and the three first terminals 222 are respectively passed through the wire holes 113. The middle ring part 221 of the three-phase wire holder 2 is sleeved outside the positioning ring wall 117, and is sleeved outside the chamber cover 25, and is sleeved outside the rotary transformer 27, i.e. the rotary transformer 27 is located in the wire connecting slot 241, and the magnetic ring 28 is located outside the rotary transformer 27.

The three-phase wire holder 2 is then mounted to the mounting hole 111 at a side close to the control mounting chamber 122, and connected to the fixing hole 119 by screws through positioning holes 251 of the mounting portion 26 and the chamber cover 25. Then, the three first terminals 222 are distributed relatively and dispersedly on the periphery of the bearing 17, the three second terminals 223 are distributed relatively and concentratedly, the three single-phase terminals 22 are connected between the motor control device 3 and the stator 15, and in the axial projection of the bearing 17, the three single-phase terminals 22, the three terminal holes 113 and the three wire threading holes 114 are all located between the bearing 17 and the stator 15.

The stator 15 is provided with a winding, the winding is provided with a lead and a terminal, the terminal of the stator is positioned at the second avoiding groove 115 and is connected with the first wiring part 222, and the pouring sealant 19 is filled between the installation annular wall 112, the partition wall and the inner wall of the machine shell, so that the pouring sealant 19 covers the three first wiring parts 222, the three wiring holes, the three fixing holes, the terminal of the stator and the end part of the winding close to the partition wall, and then, certain waste heat conduction and device fixing can be realized besides the improvement of the protection performance and the waterproof performance.

Referring to fig. 12 to 13, the three-phase wire holder 2 is disposed in the middle of the motor control device 3, the motor control device 3 includes a circuit board assembly, a plurality of capacitors 45, a plurality of power tubes 34, a pressing member 32, a positioning frame 33, and a mounting housing 31, the circuit board assembly may employ a conventional laminated copper-clad circuit, and in this embodiment, the circuit board assembly employs a laminated busbar assembly 4, the laminated busbar assembly 4 includes a main circuit board 43, a positive connecting plate 41, a negative connecting plate 42, and a three-phase connecting plate assembly 44, the main circuit board 43 is provided with a copper-clad circuit, circuit elements, and pads, and the copper-clad circuit, circuit elements, and pads constitute a control circuit.

Referring to fig. 14 and 15, and with reference to fig. 5, motor control device 3 is disposed in motor installation cavity 122, an inner wall of control installation cavity 122 is provided with a plurality of heat conduction planes 125, heat conduction planes 125 are arranged in a straight plane, a plurality of heat conduction planes 125 are sequentially connected in a circumferential direction, an avoidance groove 126 is disposed between two adjacent heat conduction planes 125, casing 1 is provided with annular wall 124 on an inner side of the inner wall of control installation cavity 122, power installation groove 123 is enclosed between annular wall 124 and the inner wall of control installation cavity 122, and power installation groove 123 extends in an annular shape.

The positioning frame 33 includes an annular substrate 331 and a plurality of spacers 333, the annular substrate 331 is disposed in a plane and extends in an annular shape, the annular substrate 331 is uniformly provided with protrusions 332 along a circumferential direction inside, the plurality of spacers 333 are disposed on the annular substrate 331 along an axial direction, the plurality of spacers 333 are distributed along the circumferential direction, the annular substrate 331 is adjacent to the spacers 11, the spacers 333 are disposed on a side opposite to the spacers 11, a cross section of the spacers 333 along the radial direction is arranged in a T shape, and positions of the spacers 333 and positions of the protrusions 332 are disposed on a same radial plane.

The annularly arranged pressing and holding member 32 includes an annular base portion 321 and a plurality of pressing and holding portions 322, the annular base portion 321 is arranged in a sheet shape and extends along the axial direction and extends annularly along the circumferential direction, the pressing and holding portions 322 are arranged in a sheet shape, and the plurality of pressing and holding portions 322 are arranged on the annular base portion 321 in a circumferential direction. The pressing and holding portion 322 includes a fixing portion, an abutting portion and a free portion, the fixing portion is connected with the annular base portion 321, the abutting portion extends out from the fixing portion to the outer side of the annular base portion 321, the free portion is located at the outer end portion of the abutting portion, the abutting portion is located between the fixing portion and the free portion, the abutting portion is arranged in an arc shape, the abutting portion protrudes to the outer side of the annular base portion 321, the abutting portion also protrudes to the inner wall of the casing 1 along the radial direction, and then the fixing portion and the free portion are both located on. A first groove body 323 is arranged between two adjacent pressing portions 322, the first groove body 323 extends along the axial direction, two adjacent pressing portions 322 form a device pressing set, one device pressing set is used for pressing one power tube 34, a second groove body 324 is arranged between two adjacent device pressing sets, the second groove body 324 extends along the axial direction, and the axial length of the second groove body 324 is greater than that of the first groove body 323.

The positioning frame 33, the plurality of power tubes 34 and the pressing member 32 are all disposed in the power installation groove 123, the annular base plate 331 of the positioning frame 33 is disposed at the bottom of the power installation groove 123, the plurality of power tubes 34 are disposed along the circumferential direction of the control installation cavity 122, the package of the power tubes 34 is connected to the heat conduction plane 125, a heat conduction sheet 35 is disposed between the package of the power tubes 34 and the heat conduction plane 125, the heat conduction sheet 35 may be made of silica gel or ceramic, one spacing bar 333 is disposed between two adjacent power tubes 34, that is, the power tubes 34 may be limited by the spacing bars 333 on both sides, the pressing portion 322 is disposed on one side close to the ring wall 124, the pressing portion 322 abuts between the ring wall 124 and the power tubes 34 and applies an outward elastic force to the power tubes 34, and the second groove 324 is matched with the bump limiting 332. The main circuit board 43 is arranged in a circle, and the pins of the power tubes 34 pass through the outer periphery of the main circuit board 43 and are soldered thereto.

Referring to fig. 16 and 17, the mounting housing 31 is disposed in a bottomed cylindrical shape, the mounting housing 31 is provided with an inner annular wall 312 at a middle portion, the inner annular wall 312 encloses a third avoiding hole 3121, the mounting housing 31 is provided with an outer annular wall 311 at an outer periphery of the inner annular wall 312, an annular cylinder bottom 313 is disposed between the outer annular wall 311 and the inner annular wall 312, an installation accommodating cavity is defined between the outer annular wall 311, the inner annular wall 312 and the cylinder bottom 313, the mounting housing 31 is provided with a positioning column assembly along an axial direction at the cylinder bottom, the positioning column assembly includes a plurality of first positioning columns 314 and a plurality of second positioning columns 315, the plurality of first positioning columns 314 are distributed along a circumferential direction, the plurality of second positioning columns 315 are distributed along the circumferential direction, the plurality of second positioning columns 315 are all located at outer sides of the plurality of first positioning columns 314, a diameter of the first positioning columns 314 is smaller than a diameter of the second positioning columns 315, the plurality of first positioning columns 314 and the plurality of second positioning columns 315, A negative connection plate 42 and a three-phase connection plate assembly 44,

a capacitor positioning cavity is defined between two adjacent first positioning columns 314 and two adjacent second positioning columns 315 adjacent to the two adjacent first positioning columns 314, a radial connecting line between one first positioning column 314 and one adjacent first second positioning column 315 passes through the axis of the mounting shell 31, the plurality of first positioning columns 314 and the plurality of second positioning columns 315 are radially arranged, and one capacitor 45 is located in one capacitor positioning cavity, namely, between the two first positioning columns 314 and the two second positioning columns 315.

The mounting shell 31 is provided with three connecting and fixing tables 317 at the top of the inner ring wall 312 and in the third avoiding hole 3121, the three connecting and fixing tables 317 are uniformly arranged along the circumferential direction, a receiving step 316 is provided at the outer side of each connecting and fixing table 317, the receiving step is used for receiving the positive connecting plate 41 and is matched with the receiving table 418, the connecting and fixing tables 317 are provided with a positive connecting position 319 and a negative connecting position 318, the positive connecting position 319 and the negative connecting position 318 are respectively provided with a connecting nut, the two connecting nuts are arranged side by side, and a fixing hole 3171 is provided at one side of the connecting and fixing table 317 located at the positive connecting position 319 or the negative connecting position 318.

The mounting housing 31 is provided with an outward protruding edge 3111 extending outward at the top of the outer annular wall 311, the outward protruding edge 3111 extends annularly, a bearing step 3112 is provided between the protruding edge 3111 and the outer annular wall 311, the bearing step 3112 is used for bearing the positive electrode connecting plate 41, and a plurality of protruding points 3113 are provided along the circumferential direction on the bearing step 3112.

The positive electrode connecting plate 41 is arranged in a bottomed cylinder shape, the whole positive electrode connecting plate 41 is made of metal, the positive electrode connecting plate 41 is provided with a first avoidance hole 410 in the middle, the positive electrode connecting plate 41 is provided with an inner ring wall 413 at the periphery of the first avoidance hole 410, the positive electrode connecting plate 41 is provided with an outer ring wall 412 at the periphery of the inner ring wall 413, a bottom ring wall 414 is arranged between the inner ring wall 413 and the outer ring wall 412 of the positive electrode connecting plate 41, the bottom ring wall 414 is connected between the inner ring wall 413 and the outer ring wall 412, an annular device accommodating cavity is formed by the bottom ring wall 414, the outer ring wall 412 and the inner ring wall 413 in a surrounding mode, the device accommodating cavity is used for accommodating a plurality of capacitors 45, the capacitors 45 are distributed along the circumferential direction, and the positive electrode. The positive electrode connecting plate 41 is provided with a protruding edge 4121 extending along the radial direction at the outer end part of the outer ring wall 412, the protruding edge 4121 extends along the circumferential direction, a plurality of positive electrode pins 411 are arranged on the protruding edge 4121 along the circumferential direction, the positive electrode pins 411 extend along the axial direction, a limiting groove 4122 is arranged between two connected positive electrode pins 411 on the outer ring wall 412, and the limiting grooves 4122 are uniformly distributed along the circumferential direction. The bottom annular wall 414 is provided with a plurality of first electrical contacts 415, the plurality of first electrical contacts 415 being distributed along the circumferential direction, the first electrical contacts being formed by grooving the bottom annular wall 414, the first electrical contacts 415 being connected to the positive pole of the capacitor 45. The bottom ring wall 414 further has a plurality of first positioning holes 416 and a plurality of second positioning holes 417, the plurality of first positioning holes 416 are uniformly distributed along the circumferential direction, the plurality of second positioning holes 417 are uniformly distributed along the circumferential direction, the plurality of first positioning holes 416 are located inside the first electrical contact 415, the plurality of second positioning holes 417 are located outside the first electrical contact 415, the first positioning post 314 passes through the first positioning hole 416, and the second positioning post 315 passes through the second positioning hole 417.

The end portion of the inner ring wall 413 close to the negative connecting plate 42 is provided with a receiving table 418, the receiving table 418 is used for receiving the negative connecting plate 42, the inner edge of the receiving table 418 of the positive connecting plate 41 is provided with a positive connecting end 419, the positive connecting end 419 is arranged in a folded piece mode, the positive connecting end 419 extends along the axial direction and then extends along the radial direction, and the positive connecting end 419 is provided with a connecting hole in the first avoiding hole 410.

Negative pole connecting plate 42 is circular metal sheet setting, and negative pole connecting plate 42 is provided with a plurality of negative pole pins 421 at the outer fringe along circumference, and negative pole pin 421 are along axial extension, and negative pole connecting plate 42 is provided with a plurality of first pins at the outer fringe and dodges groove 422, and a plurality of first pins dodge groove 422 and evenly arrange along the axial, and has a positive pole between two adjacent negative pole pins 421 and dodge groove 422, then realizes crisscross distribution. The negative electrode connecting plate 42 is provided with a plurality of second electric contacts 425, the plurality of second electric contacts 425 are distributed along the circumferential direction, the second electric contacts 425 are formed by grooving the negative electrode connecting plate 42, the second electric contacts 425 are connected with the negative electrode of the capacitor 45, the negative electrode connecting plate 42 is further provided with a plurality of first positioning holes 424 and second positioning holes 423 in a penetrating mode, the plurality of first positioning holes 424 are uniformly distributed along the circumferential direction, the plurality of second positioning holes 423 are uniformly distributed along the circumferential direction, the plurality of first positioning holes 424 are located on the inner side of the second electric contacts 425, the plurality of second positioning holes 423 are located on the outer side of the second electric contacts 425, the first positioning posts 314 penetrate through the first positioning holes 424, and the second positioning posts 315 penetrate through the second positioning holes 423. Negative pole connecting plate 42 is provided with the second in the middle part and dodges hole 426, and first dodge hole 410 and the second dodge the hole 426 intercommunication, and negative pole connecting plate 42 is provided with negative pole link 427 at the second inside edge of dodging hole 426, and negative pole link 427 is the folded piece and arranges, and negative pole link 427 is along radial extension after axial extension, and negative pole link 427 is provided with the connecting hole in the second dodges the hole 426.

The three-phase connecting plate assembly 44 includes three single-phase connecting plates 441, the three single-phase connecting plates 441 are disposed in an arcuate metal plate, or certainly may be disposed in a fan shape, the single-phase connecting plates 441 are provided at outer edges thereof with a plurality of single-phase pins 442 extending in an axial direction, the single-phase connecting plates 441 are further provided at outer edges thereof with positive-pole avoidance grooves 443 and negative-pole avoidance grooves 444, the two single-phase pins 442, the one positive-pole avoidance grooves 443 and the one negative-pole avoidance grooves 444 are sequentially arranged in a circumferential direction, the single-phase connecting plates 441 are provided at inner edges thereof with single-phase connection ends 445, the single-phase connection ends 445 are provided with connection holes, the single-phase connecting plates 441 are provided with two avoidance grooves 447 and three positioning holes 446, the two avoidance grooves 447 are located at inner edges of the single-phase connecting plates 441, the three positioning holes 446 are circumferentially distributed outside the avoidance, and the inner part forms a wiring space.

When the laminated busbar assembly 4, the plurality of capacitors 45 and the mounting case 31 are assembled, the positive electrode connecting plate 41 is mounted in the mounting case 31, the plurality of capacitors 45 are mounted on the positive electrode connecting plate 41, then the negative electrode connecting plate 42 is arranged on the positive electrode connecting plate 41, the device accommodating cavity and the capacitors 45 are covered, meanwhile, the negative electrode connecting plate 42 is supported by the bearing step 3112, the protruding points 3113 are in limit fit with the limiting grooves 4122, and the capacitors 45 are connected between the positive electrode connecting plate 41 and the negative electrode connecting plate 42. Then, three single-phase connecting plates 441 are arranged on the negative connecting plate 42, the first positioning column 314 sequentially passes through the first positioning hole 416, the first positioning hole 424 and the avoiding groove 447, the second positioning column 315 sequentially passes through the second positioning hole 417, the second positioning hole 423 and the positioning hole 446, referring to fig. 18 and 19, finally, the main circuit board 43 is arranged on the three single-phase connecting plates 441, the main circuit board 43 is provided with connecting holes at positions corresponding to the first positioning column 314 and the second positioning column 315, and the lamination connection is completed through screws, that is, the main circuit board 43, the three-phase connecting plate assembly 44, the negative connecting plate 42, the capacitor 45 and the positive connecting plate 41 are sequentially connected in a lamination manner, three insulating layers 45 are arranged between the three-phase connecting plate assembly 44 and the negative connecting plate 42, the shapes of the three insulating layers 45 are matched with the single-phase connecting plates, and an insulating, and an insulating layer may be provided between the main circuit board 43 and the three-phase connection board assembly 44, and the positive electrode pin 411 passes through the first pin escape groove 422 and the positive electrode escape groove 443 and is connected to a pad of the main circuit board 43, the negative electrode pin 421 passes through the negative electrode escape groove 444 and is connected to a pad of the main circuit board 43, the single-phase pin 442 passes through and is connected to a pad of the main circuit board 43, and the plurality of positive electrode pins 411, the plurality of negative electrode pins 421, and the plurality of single-phase pins 442 are arranged in the same circumferential direction. Of course, the positive electrode avoiding groove 443 and the negative electrode avoiding groove 444 can also be arranged in an integrally communicated pin avoiding groove, and then the positive electrode pin passes through the first pin avoiding groove and the second pin avoiding groove, and the negative electrode pin passes through the second pin avoiding groove. Of course, the laminated distribution positions of the three-phase connecting plate assembly, the cathode connecting plate and the anode connecting plate can be adjusted, for example, the pot-shaped connecting plate can also be the cathode connecting plate, and the anode connecting plate is arranged above the pot-shaped cathode connecting plate, that is, the polarities of the anode connecting plate 41 and the cathode connecting plate 42 in the above scheme are reversed.

Furthermore, the first avoidance hole 410, the second avoidance hole 426 and the third avoidance hole 3121 are arranged in an overlapping communication manner, the connection fixing station 317, the three positive connection ends 419, the three negative connection ends 427 and the three single-phase connection ends 445 are all located in an axial projection of the second avoidance hole 426 or the third avoidance hole 3121, the positive connection end 419 is located on the positive connection position 319 and can be connected through screws, the negative connection end 427 is located on the negative connection position 318 and can be connected through screws, and the positive connection end 419, the negative connection ends 427 and the single-phase connection ends 445 are sequentially distributed along the circumferential direction, the bent positive connection end 419 further performs limit matching on the inner edge of the second avoidance hole 426 and the connection fixing station 317, the bent negative connection position 318 performs limit matching on the connection fixing station, and the fixing hole 3171 located on one side of the negative connection position 318 is fixedly connected with the main circuit board. The motor control device further includes three hall elements 46, one hall element 46 being provided at one single-phase connection 445, the pins of the hall element 46 also being electrically connected to the main circuit board.

Referring to fig. 18 and 19 in combination with fig. 17 and 20, after the motor control device 3 in the above state is installed in the control installation cavity 122, the third avoiding hole 3121 is sleeved outside the middle ring portion 211 and the magnetic ring 28, and the second terminal 223 is located opposite to the single-phase connection end 445, and then may be connected by a screw, and the second terminal 223 passes through the hall element 46. The mounting shell 31 is mounted in the annular wall 124 and is in limit fit with the annular wall, monitoring sensors such as a temperature sensor can be arranged in the motor mounting cavity, and wiring of the sensors passes through the threading holes 114 and then can be electrically connected with the motor control device. And the power tubes 34 are located on the outer periphery of the main circuit board 43 and on the outer periphery of the mount case 31. In addition, the control cooling groove 132 is located on the outer periphery of the power tube 34, and can conduct heat rapidly.

The main circuit board 43 is provided with a connection position 431, a control circuit position 432, a first welding position 433 and a second welding position 434, wherein the control circuit position 432, the first welding position 433 and the second welding position 434 are distributed in an annular arrangement, the connection position 431 is located in the middle of the main circuit board 43, the control circuit position 432 is located on the periphery of the connection position 431, the first welding position 433 is located on the periphery of the control circuit position 432, the second welding position 434 is located on the periphery of the first welding position 433, and the second welding position 434 is located on the outermost periphery of the main circuit board 43. The positive connecting end 419, the negative connecting end 427 and the single-phase connecting end 445 are all located in the axial projection of the connecting position 431, the main circuit board 43 is provided with avoidance holes at the positions corresponding to the positive connecting end 419, the negative connecting end 427 and the single-phase connecting end 445 in a penetrating manner, so that the positive connecting end 419, the negative connecting end 427 and the single-phase connecting end 445 can pass through the corresponding avoidance holes, the single-phase connecting end 445 needs to be electrically connected with the main circuit board 43, the plurality of positive pins 411, the plurality of negative pins 421 and the plurality of single-phase pins 442 are electrically connected with the main circuit board 43 at the first welding position 433, and the plurality of power tubes 34 are arranged on the periphery of the main circuit board 43 and are electrically connected with the main circuit board 43 at. The plurality of power tubes 34 are uniformly distributed along the same circumferential direction of the main circuit board 43, and the plurality of power tubes 34 are arranged along the circumferential direction and are all located radially outside the three-phase connection plate assembly 44, the negative connection plate 42 and the positive connection plate 41.

The plurality of positive pins 411, the plurality of negative pins 421 and the plurality of single-phase pins 442 are arranged along the same circumferential direction of the main circuit board 43, and two adjacent single-phase pins 442 form a single-phase bridge arm pin group, and one single-phase bridge arm pin group, one positive pin 411 and one negative pin 421 are sequentially arranged in a circumferential direction in a circulating manner. The control circuit position 432 is provided with a control circuit, the control circuit position forms a circuit by copper cladding, and is welded with a corresponding inverter circuit and required circuit elements in a matching way, and the capacitor 45 is positioned in the axial projection of the control circuit position 432.

Referring to fig. 9, the peripheral wall of the casing 1 at the control installation cavity 122 is provided with a wiring hole 138 along a radial direction, the driving assembly further includes a wiring component 5, the wiring component 5 includes a wiring sleeve 53, a positive wiring board 52 and a negative wiring board 51, the positive wiring board 52 and the negative wiring board 51 are arranged in a sheet shape, an inner wiring end of the positive wiring board 52 includes a positive inner connection base portion 523 and three positive wiring portions 524, the three positive wiring portions 524 are connected to the outer periphery of the positive inner connection base portion 523, the three positive wiring portions 524 are uniformly distributed on the outer periphery of the positive inner connection base portion 523 along a circumferential direction, and the positive wiring portions 524 are provided with connection holes. The inner wiring terminal of the negative wiring board 51 includes a negative internal base 513 and three negative wiring portions 514, the three negative wiring portions 514 are connected to the outer periphery of the negative internal base 513, the three negative wiring portions 514 are evenly distributed on the outer periphery of the negative internal base 513 along the circumferential direction, and the negative wiring portions 514 are provided with connection holes. The positive terminal plate 52 and the negative terminal plate 51 have outer terminals on the outer peripheral wall of the case 1, respectively, a straight plate portion 521 is provided between the outer terminal 522 of the positive terminal plate 52 and the positive terminal portion 524, a straight plate portion 511 is provided between the outer terminal 512 of the negative terminal plate 51 and the negative terminal portion 514, and the straight plate portion 511 and the straight plate portion 522 are arranged side by side to pass through the terminal hole 138.

In addition, the positive internal base portion 523 and the negative internal base portion 513 are arranged on the main circuit board 43 in an overlapping manner in the axial direction of the housing case 1, the negative internal base portion 513 is located between the positive internal base portion 523 and the motor control device, a first avoidance concave portion 525 is formed between the positive internal base portion 523 and the positive wiring portion 524, the negative internal base portion 513 is located in the first avoidance concave portion 525, three positive connection terminals 419 and three negative connection terminals 427 are located on the same radial plane, and then it is convenient to perform the operation in which one positive wiring portion 524 is connected to one positive connection terminal 419 and one negative wiring portion 514 is connected to one negative connection terminal 427. In order to improve the protectiveness, the wiring sleeve 53 covers the positive wiring board 52 and the negative wiring board 51 by secondary injection molding, except that the external wiring terminal, the negative wiring portion and the positive wiring portion are all wrapped, and the wiring sleeve 53 is located in the control installation cavity 122, and the wiring sleeve 53 is in interference fit with the wiring hole 138.

Of course, it may also be set that the positive electrode inscribed base portion 523 is located between the negative electrode inscribed base portion 513 and the motor control device, a second avoidance concave portion is formed between the negative electrode inscribed base portion 513 and the negative electrode wiring portion 514, and the positive electrode inscribed base portion 523 is located in the second avoidance concave portion, which can also achieve the purpose of the present invention.

The terminal block 5 further includes a terminal block 55, the terminal block 55 is connected to the outer peripheral wall of the casing 1 at the control mounting cavity 122, the inside of the terminal block 55 is communicated with the control mounting cavity 122 through a terminal hole 138, and an external connection terminal of the positive terminal block 52 and an external connection terminal of the negative terminal block 51 are inserted into the inside of the terminal block 55. The driving assembly has an installation orientation, and is installed on a vehicle as shown in fig. 18, so the casing 1 has a casing top and a casing bottom distributed in the vertical direction of the installation orientation, and in the vertical direction of the installation orientation, the wiring hole 138 is located between the casing top and the casing bottom, so that the terminal box 55 is also located between the casing top and the casing bottom, and the terminal box 55 is located on the lateral side, which is favorable for reducing the occupied space in the vertical direction. Preferably, the straight plate portions 511 and 522 are drawn out at an acute angle or a right angle of 45 degrees or the like from the vertical direction.

Compare in prior art's motor, because the axial rear end of current motor generally sets up fixed knot structure or heat radiation structure, it generally presents with a plurality of cylinder structures, so the present case utilizes the space of this axial rear end, with motor control device, devices such as electric capacity and power tube set up in the control installation cavity of axial rear end, and adopt the female circuit setting of arranging of stromatolite, connection terminal and annular power tube etc. arrange, optimize the connection structure of axial rear end, not only reduce the general space that occupies of circuit device, and effectively utilized the space of axial rear end, make the drive assembly of present case and the axial dimensions of current motor assembly unchangeable, recycle the mode of being qualified for the next round of competitions after optimizing, also make the radial dimension of vertical direction unchangeable, realize the utility model discloses a highly integrated drive assembly.

Vehicle embodiment:

the vehicle comprises the driving assembly according to the scheme, the driving assembly can be integrated with a transmission or not, and the vehicle can be a new energy electric car, a new energy electric passenger car, a new energy electric truck, a new energy electric cleaning vehicle, a new energy electric rail vehicle, a new energy electric flying vehicle, a new energy electric shipping vehicle and the like.

It is from top to bottom visible, space to the rear end of axle through utilizing the motor, utilize the interval setting of spaced wall and arranging of bearing, make the rotor rotationally set up in the motor installation cavity, and motor control device then sets up in the control installation cavity, and utilize three single phase terminal to pass spaced wall's setting, connect between motor control device and stator, and between the axial projection with three single phase terminal homonymy bearing and stator, not only when connecting the wiring end and the single phase terminal of stator, when not installing the rotor promptly, leave operating space between bearing and the stator, can conveniently connect the wiring end and the single phase terminal of stator, and set up motor control device at the position of the rear end of axle of motor, so effectively reduce occupation space, improve space utilization, realize that the drive assembly highly integrates. Through the stable installation of installation rampart to the bearing, improve the operating stability of motor, three single-phase terminal all is located the periphery of installation rampart simultaneously, the wiring end installation location of the stator of also being convenient for. The first avoiding groove is utilized to position the wiring end of the stator, and layout space is optimized, so that wiring convenience and reliability are improved. The fixing hole is used for connecting and fixing the motor control device, and the wiring hole and the fixing hole are both positioned between the bearing and the stator, so that the disassembly and assembly operation can be conveniently carried out. The second avoiding groove can be used for placing the conducting wires and the terminals of the stator, so that the layout space is optimized.

In addition, because the stator has three-phase winding, so set up in the periphery of wiring pedestal through three single-phase terminal, then three single-phase terminal can be connected corresponding to the wiring end of stator, optimize wiring overall arrangement then to space such as bearing can be placed to the space between the three single-phase terminal, thereby improve the structural configuration compactness. The first wiring end and the second wiring end are respectively located on the inner side of the outer side of the wiring groove, the first wiring end is distributed along the circumferential direction, the bearing can be avoided, the second wiring end is compact along the circumferential direction, connection centralization of the motor control device can be achieved, and the circuit layout utilization rate of the motor controller is improved. The utility model discloses a single-phase wiring terminal, including circle portion, outer portion and first wiring terminal, circle portion, outer portion and the inner portion parcel is outside single-phase terminal in the setting of circle portion, outer portion and inner portion and the preparation of secondary injection moulding make, make well circle portion, outer portion and inner portion parcel outside single-phase terminal to improve the protectiveness between two wiring terminals, and the installation location of usable well circle portion realization other devices, and outer portion and first wiring terminal are located the axial outside of well circle portion and radially outside ground outwards stretch out, so can dodge the space for bearing or resolver, so improve the space utilization rate. The retaining wall can provide certain positioning and limiting for the wiring, improves connection stability and also plays a role in insulating the wiring end of the stator. Can fix the installation of three-phase connection terminal in drive assembly through the installation department, and be located arranging of one side of second wiring end with the installation department, conveniently install and remove the operation. Because the wiring base body can be provided with devices such as a rotary transformer, the periphery of the wiring base body is provided with the magnetic ring, and the electromagnetic interference is reduced.

And filling the potting adhesive on the end face of the partition wall facing the motor installation cavity, and then enabling the potting adhesive to cover the first wiring portion, wherein the first wiring portion is used for being connected with the wiring end of the stator, so that the potting of the wiring end of the first wiring portion and the wiring end of the stator is sealed, the protection performance is effectively improved, and waste heat can be efficiently conducted to the partition wall. Through the stable installation of installation rampart to the bearing, improve the operating stability of motor, three single-phase terminal all is located the periphery of installation rampart simultaneously, the wiring end installation location of the stator of also being convenient for, also makes the pouring sealant fill accurately between the inner wall of installation rampart, spacing and casing, makes the used heat that the bearing produced also can be through the conduction of pouring sealant. The fixed orifices is used for connecting fixed motor controlling means, and the wiring hole is used for being passed by single phase terminal to improve the isolation between motor installation cavity and the control installation cavity, dodge mutual interference. The second avoiding groove can be used for placing the conducting wire and the wiring terminal of the stator, so that the layout space is optimized, and the end portions of the wiring terminal, the conducting wire and the winding of the stator are positioned by using the pouring sealant.

Moreover, rotary transformer is connected and can realize monitoring the rotation state of rotor with the rotor, and rotary transformer is located the one side that is close to the control installation cavity, so can conveniently walk the line ground and be connected with motor control device, and the chamber lid can play the effect of isolated two cavities to utilize the convenient wiring of interface slot, thereby improve operating stability.

In addition, the liquid cooling flow channel of the machine shell is communicated with the interval cooling groove of the partition wall, so that waste heat of the bearing and waste heat of other devices can be quickly transferred to the machine shell from the partition wall, the heat conduction efficiency is improved, and the running performance of the driving assembly is improved. The partition walls need a certain structural cavity because the partition walls need to provide support for bearings and other devices, and are distributed in a separated mode along the circumferential direction of the partition walls, so that the heat conduction efficiency of the partition walls is improved under the condition that the strength is not affected. The setting of water conservancy diversion baffle is used for the coolant liquid that will be located the outside from outer end drainage to inner to through the mounting groove easy to assemble location, recycle the guiding gutter of outer end and the through-hole adjustment coolant liquid's of middle part flow direction, thereby make the heat transfer more abundant improve heat conductivility. The outer end of the interval cooling groove is large in opening, and the inner end of the interval cooling groove is small, so that the size of the flow channel is enlarged under the condition that the structural strength of the inner end of the interval wall is guaranteed, and the heat dissipation performance is improved. The relative closeness of the interval cooling tank and the liquid cooling runner is realized through the cover of the shell cover, the groove body and the runner are conveniently processed, and the processing efficiency and the heat dissipation efficiency of the runner are improved. The motor cooling tank mainly dissipates heat of waste heat generated by the motor, the control cooling tank mainly dissipates heat of waste heat generated by the motor control device, and the spaced cooling tanks are communicated between the motor cooling tank and the control cooling tank, so that the liquid cooling scheme of the integrated heat dissipation flow channel is utilized to improve the heat dissipation efficiency and improve the performance of the drive assembly. The partition walls need a certain structural cavity because the partition walls need to provide support for bearings and other devices, and are distributed in a separated mode along the circumferential direction of the partition walls, so that the heat conduction efficiency of the partition walls is improved under the condition that the strength is not affected. The setting of water conservancy diversion baffle is used for the coolant liquid that will be located the outside from outer end drainage to inner, thereby makes the heat transfer more abundant improve heat conductivility.

And, a plurality of power tubes are circumference arrangement ground and the interior wall connection of system installation cavity, cooperate the motor cooling bath and the control cooling bath that communicate each other, make the used heat of the power tube of circumference distribution can high-efficient conduction to control cooling bath and motor cooling bath, realize the heat dissipation of integral type liquid cooling then, improve the radiating efficiency, utilize the interior perisporium to effectively optimize motor controller's device overall arrangement as the heat conductor simultaneously, make motor controller need not increase and set up heat conduction structure, the design of the device high integration of being convenient for. Because the power tube is conducted in a time-sharing mode during actual work, the power tube can conduct heat in different positions in a time-sharing mode in a dispersing mode, and therefore heat conduction efficiency is further improved. The heat conduction area can be enlarged and the heat conduction efficiency can be increased through the close abutting of the heat conduction plane and the packaging of the power tubes, and the avoidance groove is convenient for processing the heat conduction plane and can form a certain avoidance space between the power tubes. The heat conducting plate can adopt heat conducting silica gel or a heat conducting ceramic plate, and the heat conducting efficiency between the packaging of the power tube and the heat conducting plane is increased through the heat conducting plate. Certain positioning and limiting can be realized on the power tube through the power installation groove. Through set up positioning frame in the power mounting groove, utilize positioning frame to carry on spacingly to the power tube, especially the drive assembly need overcome harsh vibrations service environment, so effectively improve the installation stability of power tube, then improve the performance stability of drive assembly.

Moreover, three single-phase connecting plates are coplanar, tiled and arranged to form a circle-like shape, after the three single-phase connecting plates are arranged in a laminated mode, the circuit boards are overlapped, and then corresponding circuit connection is achieved through the pins on the outer edge of the circuit boards and the main circuit board respectively. The pin arrangement in the same circumferential direction is beneficial to optimizing the wiring layout and the circuit layout of the main circuit board. Through the setting of dodging the groove, not only make the pin arrange in same circumference better, and also can utilize to dodge the groove and carry out corresponding spacing. The middle part is provided with the hole of dodging to and form connection space at the middle part through bow-shaped single-phase connecting plate, then positive pole link, negative pole link and three single-phase link all are arranged in the axial projection of second hole of dodging, make positive pole link, negative pole link and single-phase link middle part concentrate and arrange the convenient connection operation, and pin periphery circumference is arranged, can effectively optimize circuit wiring overall arrangement.

In addition, the positive electrode connecting plate is arranged in a cylindrical shape with a bottom, the capacitors are arranged in the positive electrode connecting plate, effective positioning is achieved, the upper negative electrode connecting plate is matched with the upper negative electrode connecting plate to be covered and positioned, good support is improved for stable connection of the capacitors, and the main circuit board, the negative electrode connecting plate, the capacitors and the positive electrode connecting plate are sequentially arranged in a stacked mode, so that the stacked structure is compact, the axial size is reduced, the stacked assembly is simple and efficient, and the assembly efficiency is improved. First dodge the hole and be used for the installation location and the placing of wiring end, hold the chamber through annular device then and place a plurality of electric capacity, make a plurality of electric capacities be circumferential distribution, and provide good support location for the electric capacity. The two ends of the capacitor are electrically connected through the electric contacts arranged along the axial direction, so that good electric connection stability can be provided for the capacitor. The negative pole connecting plate is stable to be set up on the bearing platform, and utilizes positive link and negative link all to be located the second and dodges the hole, makes the wiring end concentrate then and arranges, optimizes the overall arrangement and improves and connect operating efficiency. The main circuit board, the positive connecting plate, the negative connecting plate and even the motor control device are stably supported and fixed through the mounting shell and the positioning column assembly. The third avoidance hole through the installation shell can be assembled and positioned on other equipment, and the connection fixing table is utilized to provide stable connection support for positive connection and negative connection. The reference column not only can support and fix a position for main circuit board, anodal connecting plate and negative pole connecting plate, and forms the space to the electric capacity location between four reference columns, provides stable support for the connection of electric capacity then, ensures motor control device's stability. Because the electric capacity is the circumference and distributes, so can laminate the direction of arranging of location electric capacity under the radial arrangement of first reference column and second reference column, further advance to fix a position the electric capacity, improve its stability.

And when a plurality of power tubes which are annularly arranged are pressed and held through the annular base part and the pressing and holding parts which are circumferentially distributed, the plurality of power tubes can be simultaneously pressed and held at the preset loading position of the pressing and holding part, so that the simple assembly and the quick positioning are realized. The pressing piece of the sheet-shaped component is easier to manufacture and mold, and the sheet-shaped assembly, installation and positioning are easier. The power tube can be stably pressed and held by the abutting part which extends outwards and is arranged in an arc shape. Two adjacent pressing portions form a device pressing group for pressing and holding one power tube, the first groove body enables the two pressing portions to keep the same pressing force, the second groove body separates the device pressing group, the device pressing group is enabled to have a larger offset space, and the device pressing group can better press and hold the power tube by being matched with the annular base.

Furthermore, through the connection position, the control circuit position, first welding position and second welding position arrange by the middle part outside in proper order for the control circuit position, first welding position and second welding position are the annular respectively and arrange, each pin of outward flange respectively with main circuit board, realize corresponding circuit connection then, the link at middle part is concentrated and is arranged, the control circuit position at middle part has relatively great arrangement space, utilize annular circuit layout, improve circuit layout and drive assembly's structure cooperation degree.

In addition, the positive terminal plate and the negative terminal plate penetrate through the peripheral wall along the radial direction to be led out, so that the space in the horizontal direction is fully utilized, and the space occupation in the vertical direction or the axial direction is reduced. The flaky wiring board is convenient to install in a positioning mode, and the axial space is further conveniently distributed. The arrangement of the three positive connecting ends and the three negative connecting ends is beneficial to the layout of a ring circuit of the motor control device, so that the wiring board is also provided with three wiring parts in a matching way and corresponding to the circumferential direction, the wiring board is matched with a bearing connection through the internal connection base part, and the triangular positioning fixing is utilized to provide stable support and fixation for the wiring board. The compact degree of structural arrangement is improved by utilizing the laminated arrangement, and in order to solve the interference problem generated after the laminated arrangement, the positive wiring board and the negative wiring board are arranged in a laminated way without mutual interference through the arrangement of the avoidance concave part and the reasonable structural arrangement. Through the insulating arrangement of wiring sleeve, improve the protectiveness of wiring board then, improve the security to and set up the terminal box on radial periphery wall, can conveniently connect the positive negative pole of battery, and need not open the motor installation cavity and connect. The arrangement of the wire outlet directions of the positive terminal board and the negative terminal board is based on the installation direction of the driving assembly, in order to shorten the size of the vertical direction, the vehicle has more space in the vertical direction at the driving assembly, so that the wiring hole is positioned between the top of the machine shell and the bottom of the machine shell, and the positive terminal board and the negative terminal board are obliquely led out in the vertical direction.

Claims (10)

1. A drive assembly with sealed end part of a motor in encapsulation comprises a shell, a motor control device, a bearing, a rotor and a stator;

the method is characterized in that:

a cavity is axially arranged in the casing, a partition wall is radially arranged on the inner wall of the casing, the partition wall divides the cavity into a motor installation cavity and a control installation cavity, the bearing is arranged on the partition wall, the rotor is arranged in the motor installation cavity and connected with the bearing, the stator is arranged in the motor installation cavity and positioned outside the rotor, and the motor control device is arranged in the control installation cavity;

the driving assembly further comprises three single-phase wiring terminals, a first wiring part is arranged at one end of the motor installation cavity of each single-phase wiring terminal, a second wiring part is arranged at one end of the control installation cavity of each single-phase wiring terminal, the first wiring parts are connected with the stator, and the second wiring parts are connected with the motor control device;

the end face, facing the motor installation cavity, of the partition wall is filled with pouring sealant, and the pouring sealant covers the first wiring portion.

2. The drive assembly of claim 1, wherein:

in an axial projection of the bearing, the three first wiring portions are located between the bearing and the stator.

3. The drive assembly of claim 2, wherein:

the partition wall is provided with a mounting hole, a mounting annular wall extends towards the motor mounting cavity from the periphery of the mounting hole, the bearing is mounted in the mounting annular wall, and the three single-phase binding posts are all located on the periphery of the mounting annular wall;

the pouring sealant is filled among the installation annular wall, the partition wall and the inner wall of the machine shell.

4. A drive assembly as claimed in claim 3, wherein:

the single-phase terminal all is located the periphery wall department of installation rampart, the periphery wall of installation rampart is in single-phase terminal department is provided with the first groove of dodging.

5. The drive assembly of claim 1, wherein:

the partition wall is provided with three wiring holes and three threading holes in a penetrating mode, the three wiring holes and the three threading holes are distributed uniformly along the periphery of the bearing at staggered intervals, and one single-phase wiring terminal penetrates through one wiring hole;

the pouring sealant covers the three wiring holes and the three threading holes.

6. The drive assembly of claim 5, wherein:

a second avoidance groove is formed in the first end wall, facing the motor mounting cavity, of the partition wall, and extends from the wiring hole to the stator;

the wiring end of the stator is located at the second avoiding groove and connected with the first wiring portion, and the potting adhesive covers the wiring end of the stator.

7. The drive assembly of claim 1, wherein:

the stator comprises a winding, and the pouring sealant covers the end part, close to the partition wall, of the winding.

8. The drive assembly of any one of claims 1 to 7, wherein:

the drive assembly includes the three-phase connection terminal, and the three-phase connection terminal includes wiring pedestal and three single-phase terminal, the wiring pedestal is cylindricly to extend, and is three single-phase terminal follows the axial of wiring pedestal is arranged, and is three single-phase terminal sets up the periphery of wiring pedestal, single-phase terminal is in the axial both ends of wiring pedestal are provided with first wiring end and second wiring end respectively, first wiring end with the stator is connected, the second wiring end with motor control device connects.

9. The drive assembly of any one of claims 1 to 7, wherein:

the outer wall of the casing is provided with a liquid cooling runner, the partition wall is provided with an interval cooling tank, and the interval cooling tank is communicated with the liquid cooling runner.

10. Vehicle, characterized in that it comprises a drive assembly according to any one of the preceding claims 1 to 9.

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