CN114520617A - Six-phase motor drive controller for electric automobile - Google Patents
Six-phase motor drive controller for electric automobile Download PDFInfo
- Publication number
- CN114520617A CN114520617A CN202011312993.8A CN202011312993A CN114520617A CN 114520617 A CN114520617 A CN 114520617A CN 202011312993 A CN202011312993 A CN 202011312993A CN 114520617 A CN114520617 A CN 114520617A
- Authority
- CN
- China
- Prior art keywords
- power device
- phase
- input
- cooling channel
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims description 85
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 62
- 229910052802 copper Inorganic materials 0.000 claims description 62
- 239000010949 copper Substances 0.000 claims description 62
- 238000001816 cooling Methods 0.000 claims description 60
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 11
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000463219 Epitheca Species 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a six-phase motor driving controller for an electric automobile, which comprises a mounting rack, wherein a six-phase output assembly is arranged above the mounting rack, and an input capacitor and an input filter are arranged below the mounting rack. The six-phase output assembly is of a T-shaped structure, and the first power device and the second power device are symmetrically arranged on two sides of the middle rod of the T-shaped structure and are connected with the input end of the six-phase output assembly; the input filter comprises a lower shell, a magnetic ring, an upper shell, a positive plate, a negative plate, a grounding piece and a common-mode capacitor, wherein the positive plate and the negative plate are arranged in a laminated mode to form an electrode plate assembly, the magnetic ring is nested at the rear end of the electrode plate assembly, the magnetic ring is fixed on the lower shell through the upper shell, the common-mode capacitor is encapsulated on the lower shell, the front end of the electrode plate assembly is electrically connected with one end of the common-mode capacitor, and the input end of the input capacitor is connected with the rear end of the electrode plate assembly. Compared with the prior art, the invention has the advantages of optimizing the structure of the controller, improving the heat dissipation capability, enhancing the anti-electromagnetic interference capability, obviously improving the working stability and the like.
Description
Technical Field
The invention relates to a drive controller, in particular to a six-phase motor drive controller for an electric automobile.
Background
With the continuous development of the traditional new energy automobile, the electric automobile has gradually changed from a low-power rental automobile to a household high-power SUV pure electric automobile. The large SUV electric vehicle is large in size and heavy in weight, and the power and the torque which can be output by the driving motor are required to be larger, so that the working requirement of the driving motor can be met only by requiring the larger power and the larger current which are output by the driving controller. Under the general condition, permanent magnet synchronous motor only chooses the high-power motor drive of a three-phase to satisfy high-power electric automobile's demand, each phase current of motor is all very big like this, the output of same drive controller is also only three-phase, the side output current that corresponds is also very big, this all proposes very high requirement to power module's heat dissipation and use, the module can't satisfy such big current output and heat dissipation requirement even a bit, lead to the damage of module, and as long as there is a looks problem in the three-phase motor use, whole motor will stall.
The existing solution is to convert the three-phase output into six-phase output, and simultaneously use two power devices to realize inversion output, thereby satisfying the six-phase output. However, the structural heat of the existing six-phase output controller still has problems in management and filter design: the power module generally adopts single-sided heat dissipation, and the heat dissipation capability is limited, so that the thermal stability of the system is poor; meanwhile, the six-phase output controller with the existing structure often has the problem of electromagnetic interference, so that the working stability of the power module is influenced, and even the motor controller is damaged under extreme conditions, and the use requirements of customers are difficult to meet.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a six-phase motor driving controller for an electric vehicle, which optimizes the structure of the controller, improves the heat dissipation capability, enhances the anti-electromagnetic interference capability and obviously improves the working stability of the motor driving controller.
The purpose of the invention can be realized by the following technical scheme:
a six-phase motor driving controller for an electric automobile comprises a mounting frame, wherein a first power device, a second power device, a six-phase output assembly and a PCB are arranged above the mounting frame, an input capacitor is arranged below the mounting frame, the six-phase output assembly is of a T-shaped structure, and the first power device and the second power device are symmetrically arranged on two sides of a middle rod of the T-shaped structure and are connected with the input end of the six-phase output assembly; the utility model discloses a mounting bracket, including mounting bracket, positive plate, negative plate, grounding strip, magnetic ring, common mode electric capacity, mounting bracket bottom surface, positive plate and negative plate stromatolite are arranged to form polar plate subassembly, the magnetic ring nestification is in the rear end of polar plate subassembly to the magnetic ring passes through the epitheca to be fixed on the inferior valve, common mode electric capacity embedment is on the inferior valve, common mode electric capacity's one end is connected to the front end electrical connection common mode electric capacity of polar plate subassembly, common mode electric capacity's the other end electrical connection grounding strip, the rear end of polar plate subassembly is connected to input electric capacity's input.
Furthermore, the six-phase output assembly comprises a six-phase support, a six-phase copper bar and a current detector, the six-phase copper bar comprises three pairs of L-shaped copper bars, two L-shaped copper bars in each pair of L-shaped copper bars are symmetrically arranged to form a T shape, the three pairs of T-shaped L-shaped copper bars are nested in parallel to each other to form a T-shaped structure, and all the L-shaped copper bars are fixed on the six-phase support; the one end of L type copper lath is equipped with copper strip input, and the other end is equipped with copper strip output, current detector sets up the horizontal pole side at T type structure, current detector is passed to the output of L type copper lath, and six output assembly's output is constituteed jointly to all L type copper lath outputs, and six output assembly's input is constituteed jointly to all L type copper lath inputs.
Further, in the three pairs of T-shaped L-shaped copper strips, the T-shaped intermediate rod of the pair of L-shaped copper strips located at the center is shortest and the cross rod is longest, and the T-shaped intermediate rod of the pair of L-shaped copper strips located at the outermost side is shortest and the cross rod is longest.
Furthermore, the input filter is provided with a plurality of magnetic rings, each magnetic ring is in a U-shaped structure, and every two magnetic rings are buckled up and down to form a finished closed electromagnetic channel for penetrating through the polar plate assembly.
Furthermore, the PCB is arranged above the first power device and the second power device and is electrically connected with signal pins of the first power device and the second power device, the input capacitor is arranged on the bottom surface of the mounting frame in an inverted mode, and an output end of the input capacitor penetrates through the mounting frame to be electrically connected with the first power device and the second power device.
Further, the first power device and the second power device are identical in structure, the first power device comprises a lower cooling channel, a power module and an upper cooling channel, the lower cooling channel and the upper cooling channel are stacked to form a gap, and the first power module is clamped in the gap.
Furthermore, the bottom surface of the lower cooling channel is a plane, two ends of the top surface are respectively provided with an upper boss, the upper bosses are internally provided with through holes penetrating through the top surface and the bottom surface, and the through holes are simultaneously communicated with the inside of the lower cooling channel; the top surface of the upper cooling channel is a plane, two ends of the bottom surface are respectively provided with a lower boss, the center of each lower boss is provided with a groove, and the center of each groove is provided with a round hole communicated with the inside of the upper cooling channel; when the lower cooling channel and the upper cooling channel are stacked, the upper boss is embedded into the circular groove in the lower boss.
Furthermore, radiating fins which are arranged in a staggered mode are welded in the middle of the lower cooling channel; the middle of the upper cooling channel is welded with radiating fins which are arranged in a staggered mode.
Furthermore, a liquid inlet channel, a first liquid inlet, bosses, passing holes, a first liquid outlet, a second liquid inlet, a second liquid outlet and a liquid outlet channel are arranged on the mounting frame, the two bosses are arranged on the mounting frame side by side and used for connecting a first power device and a second power device, the two passing holes are distributed on two sides of the two bosses, the first liquid inlet and the first liquid outlet are arranged at two ends of one boss, the second liquid inlet and the second liquid outlet are arranged at two ends of the other boss, and the first liquid outlet is communicated with the second liquid inlet; the liquid inlet channel is communicated with the first liquid inlet, the liquid outlet channel is connected with the second liquid outlet, the first liquid outlet and the first liquid inlet are communicated with the first power device, and the second liquid inlet and the second liquid outlet are communicated with the second power device.
Further, the liquid inlet channel and the liquid outlet channel are symmetrically arranged on two sides of the mounting frame.
Compared with the prior art, the invention has the following advantages:
1. the six-phase output assembly adopts a T-shaped structure, and the two power devices are symmetrically designed on two sides of the six-phase output assembly side by side, so that six-phase output of the driving controller is realized, the product design symmetry is high, the current equalizing and voltage equalizing effects of the whole power output of the driving controller are more prominent, and voltage spikes and current spikes can be well inhibited; meanwhile, an input filter is additionally arranged in front of the input capacitor, the input filter is integrated with a common-mode capacitor at the front end to perform first filtering, then a magnetic ring is buckled on the positive plate and the negative plate to perform second filtering, and high-voltage current directly enters the input capacitor to perform third voltage stabilization filtering after the two filtering, so that voltage spike is further inhibited and radiation interference is realized; in conclusion, the invention remarkably improves the working stability of the driving controller by the structure of the six-phase output assembly and the problem of two-stage suppression of electromagnetic interference by arranging the input filter.
2. The six-phase output assembly comprises a six-phase support, a six-phase copper bar and a current detector, wherein the six-phase copper bar comprises three pairs of L-shaped copper bar strips which are fixed in the six-phase support and are arranged in a nested manner in parallel to form a T-shaped structure, the integration level of the structure is high, the number of parts of a driving controller is effectively reduced, the assembly complexity is reduced, and the current equalization and voltage equalization of power output are ensured.
3. According to the invention, through the design of the mounting rack, the upper surface and the lower surface of the power module are simultaneously provided with the cooling channels, so that the synchronous heat dissipation of the power module in two directions can be simultaneously realized, the heat dissipation efficiency and speed are improved, the efficient heat management of the whole product is realized, and the heat stability of the product is further facilitated.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is a schematic structural diagram of a six-phase output assembly.
Fig. 3 is a schematic diagram of the structure of the input filter.
Fig. 4 is a structural schematic view of the lower case.
Fig. 5 is a schematic structural view of the upper case.
Fig. 6 is a schematic structural diagram of the first power device.
FIG. 7 is a schematic view of the upper cooling channel.
Fig. 8 is a schematic view of the structure inside the upper cooling passage.
Fig. 9 is a schematic structural view of the mounting bracket.
Reference numerals: 1. mounting bracket, 2, first power device, 3, PCB board, 4, six-phase output assembly, 5, liquid inlet pipe, 6, input capacitor, 7, input filter, 8, second power device, 9, liquid outlet pipe, 11, liquid inlet channel, 12, first liquid inlet, 13, boss, 14, through hole, 15, fixed column, 16, first liquid outlet, 17, second liquid inlet, 18, second liquid outlet, 19, liquid outlet channel, 21, lower cooling channel, 211, upper boss, 211a, through hole, 22, power module, 23, upper cooling channel, 231, lower boss, 231a, round hole, 41, six-phase support, 42, six-phase copper bar, L-shaped copper bar, 421a, copper bar input end, 421b, copper bar output end, 43, current detector, 71, lower shell, 72, magnetic ring, 73 upper shell, 74, 421, 75, negative plate, 76, grounding piece, 77. and (4) common mode capacitance.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the present embodiment provides a six-phase motor driving controller for an electric vehicle, which includes a mounting rack 1, a first power device 2, a second power device 8, a six-phase output assembly 4, a PCB 3, an input capacitor 6 and an input filter 7, which are disposed below the mounting rack 1, and a liquid inlet pipe 5 and a liquid outlet pipe 9, which are disposed on two sides of the mounting rack 1.
As shown in fig. 2, the six-phase output assembly 4 is in a T-shaped structure, and the first power device 2 and the second power device 8 are symmetrically arranged on two sides of a middle rod of the T-shaped structure and are connected with the input end of the six-phase output assembly 4. The six-phase output assembly 4 specifically includes a six-phase support 41, a six-phase copper bar 42, and a current detector 43. The six-phase support 41 is arranged in the middle of the mounting frame 1 and fixed on the mounting frame 1, and the six-phase copper bar 42 is fixed on the six-phase support 41. Specifically, the six-phase copper bar 42 includes three pairs of L-shaped copper bars 421, two L-shaped copper bars 421 in each pair of L-shaped copper bars 421 are symmetrically disposed to form a T shape, the three pairs of T-shaped L-shaped copper bars 421 are nested in parallel to form a T-shaped structure, and all the L-shaped copper bars (421) are fixed on the six-phase support (41). Meanwhile, in the three pairs of T-shaped L-shaped copper plate strips 421, the lengths of the T-shaped intermediate bars and the cross bars are uniformly distributed, the intermediate bar of the pair of L-shaped copper plate strips 421 located at the center is shortest, the cross bar is longest, and the intermediate bar of the pair of L-shaped copper plate strips 421 located at the outermost side is shortest and the cross bar is longest. One end of L type copper lath (421) is equipped with copper lath input end 421a, and the other end is equipped with copper lath output end 421b, and copper lath output end 421b still presses the riveting and has the nut. The current detector 43 is disposed on the cross bar side of the T-shaped structure, and the output end 421b of the L-shaped copper plate strip 421 passes through the current detector 43. The output ends 421b of all the L-shaped copper strips 421 jointly form the input end of the six-phase output assembly 4; the input ends 421a of all the L-shaped copper strips 421 jointly constitute the input end of the six-phase output assembly 4. The six L-shaped copper strips 421 are spaced 5mm apart from each other.
As shown in fig. 3, an input filter 7 is also provided below the mounting block 1. The input filter 7 includes a lower case 71, a magnetic ring 72, an upper case 73, a positive plate 74, a negative plate 75, a ground piece 76, and a common mode capacitor 77. The ground plate 76 is fixed to the bottom surface of the mount 1 together with the lower case 71. Positive plates 74 and negative plates 75 are arranged in a stack to form a plate assembly. The magnetic ring 72 is nested at the rear end of the pole plate assembly, and the magnetic ring 72 is fixed on the lower shell 71 through the upper shell 73. The common mode capacitor 77 is encapsulated on the lower shell 71, the front end of the electrode plate assembly is electrically connected with one end of the common mode capacitor 77, and the other end of the common mode capacitor 77 is electrically connected with the grounding sheet 76. The input end of the input capacitor 6 is connected with the rear end of the polar plate assembly.
Each magnetic ring 72 is in a U-shaped structure, the number of the magnetic rings 72 is four, and every two U-shaped magnetic rings 72 are buckled up and down to form a finished closed electromagnetic channel which is used for penetrating through the polar plate assembly to meet the filtering and inhibiting of input current and meet the EMC performance of the controller.
As shown in fig. 4 and 5, the lower shell 71 has two small rectangular slots on the left side for potting the common mode capacitor 77 and a large square slot on the right side for placing the lower two magnetic rings 72. The bottom of the upper shell 73 is provided with a rectangular groove for placing the two upper magnetic rings 72, and the bottom of the groove is provided with four small cylindrical protrusions for pressing the magnetic rings 72 so as to ensure that the upper magnetic ring 72 is not separated from the lower magnetic ring 72 in a contact manner.
As shown in fig. 6 and 7, the first power device 2 and the second power device 8 are identical and fixed on the mounting frame 1. Taking the first power plant 2 as an illustration, the power plant comprises a lower cooling channel 21, a power module 22 and an upper cooling channel 23. The lower cooling channels 21 and the upper cooling channels 23 are stacked together to clamp the power module 22 in the gap in between. The bottom surface of the lower cooling channel 21 is a flat surface, two ends of the top surface are respectively provided with an upper boss 211, a through hole 211a penetrating through the top surface and the bottom surface is arranged in the upper boss 211, and the through hole 211a is simultaneously communicated with the inside of the lower cooling channel 21. The top surface of the cooling channel 23 is a plane, two ends of the bottom surface are respectively provided with a lower boss 231, the center of the lower boss 231 is provided with a groove, and the center of the groove is provided with a round hole 231a communicated with the inside of the upper cooling channel 23; when the lower cooling channel 21 and the upper cooling channel 23 are stacked, the upper boss 211 is fitted into the circular groove in the lower boss 231, so that the circular hole 231a and the through hole 211a communicate with each other and remain sealed. As shown in fig. 8, staggered fins are welded in the middle of the lower cooling channel 21; the middle of the upper cooling channel 23 is also welded with radiating fins which are arranged in a staggered mode.
As shown in fig. 9, the mounting bracket 1 is provided with a liquid inlet channel 11, a first liquid inlet 12, a boss 13, a through hole 14, a fixing column 15, a first liquid outlet 16, a second liquid inlet 17, a second liquid outlet 18 and a liquid outlet channel 19. Two bosses 13 are arranged side by side on the mounting block 1 for connecting the first power device 2 and the second power device 8. The two through holes 14 are distributed on both sides of the two bosses 13. A first liquid inlet 12 and a first liquid outlet 16 are arranged at two ends of one boss 13, and a second liquid inlet 17 and a second liquid outlet 18 are arranged at two ends of the other boss 13. The first liquid outlet 16 communicates with the second liquid inlet 17. The liquid inlet channel 11 is communicated with the first liquid inlet 12, and the liquid outlet channel 19 is connected with the second liquid outlet 18. The first liquid outlet 16 and the first liquid inlet 12 are communicated with a through hole 211a of a lower cooling channel 21 in the first power device 2; the second liquid inlet 17 and the second liquid outlet 18 communicate with the through hole 211a of the lower cooling passage 21 in the second power device 8.
In the actual working process, the cooling liquid firstly enters the liquid inlet channel 11 from the liquid inlet pipe 5, flows into the upper cooling channel 23 and the lower cooling channel 21 of the first power device 2 from the first liquid inlet 12, and is divided into two parallel cooling liquids, so that the cooling heat dissipation of two surfaces of the power module 22 in the first power device 2 is realized. The cooling fluid then merges from the ends into the first outlet port 16 and flows through a communicating channel into the second inlet port 17. Then the cooling liquid enters the upper cooling channel 23 and the lower cooling channel 21 of the second cooling device 8 from the second liquid inlet 17, and is divided into two parallel cooling liquids, so as to realize cooling and heat dissipation of two surfaces of the power module 22 in the second power device 8, then the cooling liquids converge together from the other end and enter the second liquid outlet 18, and flow into the liquid outlet channel 19, and finally flow out from the liquid outlet pipe 9, so that the heat dissipation and cooling of the whole six-phase motor driving controller are completed.
The PCB board 3 is disposed above the first and second power devices 2 and 8, and is electrically connected to signal pins of the first and second power devices 2 and 8. The input capacitor 6 is arranged on the bottom surface of the mounting rack 1 in an inverted mode, and the output end of the input capacitor 6 penetrates through the mounting rack 1 to be electrically connected with the power modules 22 in the first power device 2 and the second power device 8.
The specific assembling process of the motor controller is as follows:
firstly, assembling corresponding components:
1. assembling the input filter 7: firstly, filling a common-mode capacitor 77 in a rectangular groove on the left side of a lower shell 71, encapsulating the common-mode capacitor by using glue, then installing a grounding sheet 76 on the lower shell 71, respectively clamping and welding one end of the common-mode capacitor 77 with the grounding sheet 76, then placing a positive plate 74 and a negative plate 75 in a laminated manner, buckling and sleeving four magnetic rings 72 on the positive plate 74 and the negative plate 75 in pairs, then filling the common-mode capacitor in a rectangular groove on the right side of the lower shell 71, and finally pressing an upper shell 73 on the upper magnetic ring 72 and fixing the upper shell 71 to complete the assembly of the input filter 7;
2. assembling the first power device 2 and the second power device 8: firstly, horizontally placing the lower cooling channel 21, coating heat-conducting silicone grease on the lower cooling channel, then placing the three power modules 22 on the upper cooling channel side by side, coating heat-conducting silicone grease on the lower surface of the upper cooling channel 23, pressing the upper surface of the power modules 22, sealing the lower cooling channel 21 and the lower cooling channel by adopting an O-shaped ring, completing the assembly of the first power device 2, and repeatedly assembling the second power device 8;
3. assembling the six-phase output assembly 4: firstly, the six-phase support 41 is horizontally placed, then the six-phase copper bar 42 is placed in the L-shaped groove of the six-phase support 71, and then the current detector 43 is sleeved on the output end of the six-phase copper bar 42 and penetrates through the central hole of the current detector 43.
Then the drive controller assembly is completed:
firstly, reversely mounting the input filter 7 on the bottom surface of the mounting frame 1 and fixing the input filter by using bolts, then reversely mounting the input capacitor 6 on the bottom surface of the mounting frame 1, enabling the output end of the input capacitor 6 to pass through the through hole on the mounting frame 1 and enter the through hole, and electrically connecting the input end of the input capacitor 6 with the output ends of the positive plate 74 and the negative plate 75 of the input filter 7 and fixing the input end of the input capacitor 6 on the lower shell 71 by using bolts; fixing the six-phase output assembly 4 on the mounting frame 1 by using bolts, fixing the current detector 43 on the mounting frame 1 by using bolts, then fixing the first power device 2 and the second power device 8 on the bosses 13 on the mounting frame 1 respectively, fixing the input end of the power module 22 on the press-riveting nut at the output end of the input capacitor 6 by using bolts, and fixing the six-phase output end of the power module 22 on the six-phase support 41 by using bolts after electrically connecting the six-phase output end of the power module 22 with the input end of the six-phase copper bar 42 respectively; then fixing the PCB 3 on the cylindrical fixing column 15 of the mounting rack 1 by using bolts, and welding and fixing the signal pins of the power module 22 on the PCB 3 by using a soldering process; and finally, fixing the liquid inlet pipe 5 and the liquid outlet pipe 9 on the liquid inlet channel 11 and the liquid outlet channel 19 on the two sides of the mounting frame 1 respectively, so as to finish the assembly of the whole driving controller.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.
Claims (10)
1. The six-phase motor driving controller for the electric automobile is characterized by comprising a mounting rack (1), wherein a first power device (2), a second power device (8), a six-phase output assembly (4) and a PCB (printed circuit board) are arranged above the mounting rack (1), an input capacitor (6) is arranged below the mounting rack (1), the six-phase motor driving controller is characterized in that the six-phase output assembly (4) is of a T-shaped structure, and the first power device (2) and the second power device (8) are symmetrically arranged on two sides of a middle rod of the T-shaped structure and are connected with the input end of the six-phase output assembly (4); an input filter (7) is further arranged below the mounting rack (1), the input filter (7) comprises a lower shell (71), a magnetic ring (72), an upper shell (73), a positive plate (74), a negative plate (75), a grounding sheet (76) and a common-mode capacitor (77), the grounding plate (76) and the lower shell (71) are fixed together on the bottom surface of the mounting frame (1), the positive plates (74) and the negative plates (75) are arranged in a laminated mode to form a plate assembly, the magnet ring (72) is nested at the rear end of the plate assembly, and the magnetic ring (72) is fixed on the lower shell (71) through the upper shell (73), common mode capacitor (77) embedment is on inferior valve (71), common mode capacitor (77)'s one end is connected to polar plate subassembly's front end electrical connection common mode capacitor (77), common mode capacitor (77)'s the other end electrical connection grounding piece (76), the rear end of polar plate subassembly is connected to input capacitance's (6) input.
2. The six-phase motor drive controller for the electric vehicle according to claim 1, wherein the six-phase output assembly (4) comprises a six-phase support (41), a six-phase copper bar (42) and a current detector (43), the six-phase copper bar (42) comprises three pairs of L-shaped copper bars (421), two L-shaped copper bars (421) in each pair of L-shaped copper bars (421) are symmetrically arranged to form a T shape, the three pairs of T-shaped L-shaped copper bars (421) are nested in parallel to each other to form a T-shaped structure, and all the L-shaped copper bars (421) are fixed on the six-phase support (41); one end of the L-shaped copper strip (421) is provided with a copper strip input end (421a), the other end of the L-shaped copper strip is provided with a copper strip output end (421b), the current detector (43) is arranged on the side of the cross rod of the T-shaped structure, the output end (421b) of the L-shaped copper strip (421) penetrates through the current detector (43), all the L-shaped copper strip (421) output ends (421b) jointly form an output end of the six-phase output assembly (4), and all the L-shaped copper strip (421) input ends (421a) jointly form an input end of the six-phase output assembly (4).
3. The six-phase motor driving controller for the electric vehicle according to claim 2, wherein the T-shaped middle rod of the L-shaped copper bar (421) located at the center is shortest and the cross bar is longest, and the T-shaped middle rod of the L-shaped copper bar (421) located at the outermost is shortest and the cross bar is longest, among the three pairs of T-shaped copper bars (421).
4. The six-phase motor driving controller for the electric vehicle as claimed in claim 1, wherein the input filter (7) has a plurality of magnetic rings (72), each magnetic ring (72) is U-shaped, and each two magnetic rings (72) are fastened up and down to form a complete closed electromagnetic path for passing through the pole plate assembly.
5. The six-phase motor driving controller for the electric vehicle as claimed in claim 1, wherein the PCB board (3) is disposed above the first power device (2) and the second power device (8) and electrically connected to signal pins of the first power device (2) and the second power device (8), the input capacitor (6) is flip-mounted on a bottom surface of the mounting bracket (1), and an output end of the input capacitor (6) penetrates through the mounting bracket (1) to electrically connect the first power device (2) and the second power device (8).
6. The six-phase motor drive controller for the electric vehicle according to claim 1, wherein the first power device (2) and the second power device (8) are identical in structure, the first power device (2) comprises a lower cooling channel (21), a power module (22) and an upper cooling channel (23), the lower cooling channel (21) and the upper cooling channel (23) are stacked and formed in a gap, and the first power module (22) is clamped in the gap.
7. The six-phase motor driving controller for the electric vehicle according to claim 6, wherein the bottom surface of the lower cooling channel (21) is a flat surface, each of the two ends of the top surface is provided with an upper boss (211), the upper bosses (211) are provided with through holes (211a) penetrating through the top surface and the bottom surface, and the through holes (211a) are simultaneously communicated with the inside of the lower cooling channel (21); the top surface of the upper cooling channel (23) is a plane, two ends of the bottom surface are respectively provided with a lower boss (231), the center of each lower boss (231) is provided with a groove, and the center of each groove is provided with a round hole (231a) communicated with the inside of the upper cooling channel (23); when the lower cooling channel (21) and the upper cooling channel (23) are stacked, the upper boss (211) is embedded into a circular groove in the lower boss (231).
8. The six-phase motor drive controller for the electric vehicle according to claim 6, wherein heat radiating fins are welded in the middle of the lower cooling channel (21) and are arranged in a staggered manner; the middle of the upper cooling channel (23) is welded with radiating fins which are arranged in a staggered mode.
9. The six-phase motor drive controller for an electric vehicle according to claim 1, the mounting rack (1) is provided with a liquid inlet channel (11), a first liquid inlet (12), bosses (13), through holes (14), a first liquid outlet (16), a second liquid inlet (17), a second liquid outlet (18) and a liquid outlet channel (19), the two bosses (13) are arranged on the mounting rack (1) side by side and used for connecting a first power device (2) and a second power device (8), the two through holes (14) are distributed on two sides of the two bosses (13), the two ends of one boss (13) are provided with the first liquid inlet (12) and the first liquid outlet (16), the two ends of the other boss (13) are provided with the second liquid inlet (17) and the second liquid outlet (18), and the first liquid outlet (16) is communicated with the second liquid inlet (17); liquid inlet channel (11) intercommunication first inlet (12), second liquid outlet (18) is connected in liquid outlet channel (19), first power device (2) of first liquid outlet (16) and first inlet (12) intercommunication, second power device (8) of second inlet (17) and second liquid outlet (18) intercommunication.
10. The six-phase motor driving controller for the electric vehicle as claimed in claim 9, wherein the liquid inlet channel (11) and the liquid outlet channel (19) are symmetrically arranged on both sides of the mounting frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312993.8A CN114520617A (en) | 2020-11-20 | 2020-11-20 | Six-phase motor drive controller for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312993.8A CN114520617A (en) | 2020-11-20 | 2020-11-20 | Six-phase motor drive controller for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114520617A true CN114520617A (en) | 2022-05-20 |
Family
ID=81594658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011312993.8A Pending CN114520617A (en) | 2020-11-20 | 2020-11-20 | Six-phase motor drive controller for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114520617A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055532U (en) * | 1989-06-27 | 1990-04-04 | 中原石油勘探局钻井工艺研究所 | Monitor for well gushing and leaking |
| JPH06292369A (en) * | 1993-04-03 | 1994-10-18 | Hirotami Nakano | Uninterruptible power supply device |
| US9241428B1 (en) * | 2015-08-31 | 2016-01-19 | Faraday & Future Inc. | Inverter assembly |
| WO2017092192A1 (en) * | 2015-11-30 | 2017-06-08 | 中山大洋电机股份有限公司 | Electric motor controller |
| CN208445435U (en) * | 2018-08-07 | 2019-01-29 | 成都联腾动力控制技术有限公司 | A kind of built-in EMC of electric machine controller inhibits device and motor controller casing |
| CN209218051U (en) * | 2018-11-07 | 2019-08-06 | 深圳振华富电子有限公司 | Low-loss power filter |
| CN111130399A (en) * | 2018-10-31 | 2020-05-08 | 上海电驱动股份有限公司 | Dual-motor controller for driving motor of electric automobile |
| CN210839411U (en) * | 2019-12-31 | 2020-06-23 | 蜂巢电驱动科技河北有限公司 | Filter module, motor controller and motor controller assembly |
| CN211592276U (en) * | 2020-02-20 | 2020-09-29 | 北京新能源汽车股份有限公司 | External charger of electric automobile |
| CN214506925U (en) * | 2020-11-20 | 2021-10-26 | 上海汽车电驱动有限公司 | Six-phase motor drive controller for electric automobile |
-
2020
- 2020-11-20 CN CN202011312993.8A patent/CN114520617A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055532U (en) * | 1989-06-27 | 1990-04-04 | 中原石油勘探局钻井工艺研究所 | Monitor for well gushing and leaking |
| JPH06292369A (en) * | 1993-04-03 | 1994-10-18 | Hirotami Nakano | Uninterruptible power supply device |
| US9241428B1 (en) * | 2015-08-31 | 2016-01-19 | Faraday & Future Inc. | Inverter assembly |
| WO2017092192A1 (en) * | 2015-11-30 | 2017-06-08 | 中山大洋电机股份有限公司 | Electric motor controller |
| CN208445435U (en) * | 2018-08-07 | 2019-01-29 | 成都联腾动力控制技术有限公司 | A kind of built-in EMC of electric machine controller inhibits device and motor controller casing |
| CN111130399A (en) * | 2018-10-31 | 2020-05-08 | 上海电驱动股份有限公司 | Dual-motor controller for driving motor of electric automobile |
| CN209218051U (en) * | 2018-11-07 | 2019-08-06 | 深圳振华富电子有限公司 | Low-loss power filter |
| CN210839411U (en) * | 2019-12-31 | 2020-06-23 | 蜂巢电驱动科技河北有限公司 | Filter module, motor controller and motor controller assembly |
| CN211592276U (en) * | 2020-02-20 | 2020-09-29 | 北京新能源汽车股份有限公司 | External charger of electric automobile |
| CN214506925U (en) * | 2020-11-20 | 2021-10-26 | 上海汽车电驱动有限公司 | Six-phase motor drive controller for electric automobile |
Non-Patent Citations (5)
| Title |
|---|
| PIOTR TRACZ等: "Injector system for the polish synchrotron radiation facility ‘SOLARIS’", 《2012 IEEE INTERNATIONAL POWER MODULATOR AND HIGH VOLTAGE CONFERENCE 》, 23 May 2013 (2013-05-23) * |
| 尹卓;李东海;杨柳;蒋荣勋;苏伟;陈国其;: "纯电动汽车电机驱动系统三相线滤波磁环设计", 中国汽车, no. 08, 18 August 2020 (2020-08-18) * |
| 王宇;唐广笛;王海斌;雷代良;肖小春;: "电动汽车电机驱动系统传导性电磁干扰的抑制", 黑龙江科技信息, no. 29, 15 October 2016 (2016-10-15) * |
| 王铁军;辜承林;赵镜红;姜晓弋;: "用于抑制多相异步电动机定子谐波电流的电抗滤波器", 电工技术学报, no. 11, 26 November 2006 (2006-11-26) * |
| 陈登峰;周诗君;位超群;魏粲然;: "高功率密度双驱动控制器开发与验证", 电机与控制应用, no. 10, 10 October 2020 (2020-10-10) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208924141U (en) | A kind of Double Motor Control device for motor in electric automobile driving | |
| CN205212744U (en) | Exchange asynchronous machine controller drive power modular structure | |
| CN211744370U (en) | Inverter assembly and electric automobile | |
| CN105763076A (en) | Water-cooling type power unit | |
| CN113708668B (en) | Discrete IGBT parallel power assembly and double-motor driving system | |
| CN214506925U (en) | Six-phase motor drive controller for electric automobile | |
| CN114520617A (en) | Six-phase motor drive controller for electric automobile | |
| CN111130399A (en) | Dual-motor controller for driving motor of electric automobile | |
| CN211151864U (en) | Electric automobile controller based on single tube is parallelly connected | |
| CN212572452U (en) | High-power electric machine controller is with high integrated electric device | |
| CN213214174U (en) | Motor controller for electric automobile | |
| CN216414206U (en) | Motor controller and vehicle power system with same | |
| CN212573297U (en) | Integrated electrical device for motor controller | |
| CN212013217U (en) | High-power-density motor controller for electric automobile | |
| CN214822623U (en) | Integrated controller for electric automobile | |
| CN211151850U (en) | Double-motor controller for electric automobile | |
| CN213213362U (en) | High-power motor controller for electric bus | |
| CN114679069A (en) | Power unit and high integration device with same | |
| CN216981776U (en) | Energy storage power module | |
| CN220359575U (en) | Element arrangement structure of motor controller for vehicle | |
| CN113133234A (en) | High-power-density motor controller for electric automobile | |
| CN215269219U (en) | Cooling device and motor controller | |
| CN219999843U (en) | High-integration single-phase power device | |
| CN114071932A (en) | Integrated electrical device for motor controller | |
| CN212812530U (en) | Dual-drive system power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |