CN112994367A - Axially integrated electric automobile motor control system - Google Patents

Axially integrated electric automobile motor control system Download PDF

Info

Publication number
CN112994367A
CN112994367A CN201911295018.8A CN201911295018A CN112994367A CN 112994367 A CN112994367 A CN 112994367A CN 201911295018 A CN201911295018 A CN 201911295018A CN 112994367 A CN112994367 A CN 112994367A
Authority
CN
China
Prior art keywords
control system
heat dissipation
motor
plate
motor control
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
Application number
CN201911295018.8A
Other languages
Chinese (zh)
Inventor
陈登峰
陈雷
应红亮
岳超
秦基伟
宋君峰
魏粲然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Auto Edrive Co Ltd
Shanghai Auto Edrive Engineering Technology Research Center
Shanghai Edrive Co Ltd
Original Assignee
Shanghai Auto Edrive Co Ltd
Shanghai Auto Edrive Engineering Technology Research Center
Shanghai Edrive Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Auto Edrive Co Ltd, Shanghai Auto Edrive Engineering Technology Research Center, Shanghai Edrive Co Ltd filed Critical Shanghai Auto Edrive Co Ltd
Priority to CN201911295018.8A priority Critical patent/CN112994367A/en
Publication of CN112994367A publication Critical patent/CN112994367A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to an axially integrated electric automobile motor control system, which comprises a driving motor and a motor controller, wherein the motor controller comprises a box body, and a power module, a control board, a thin film capacitor and the like which are arranged in the box body; the motor controller is arranged on the axial rear end face of the driving motor; the power module comprises a drive plate, an IGBT module and a heat dissipation bottom plate which are sequentially arranged from top to bottom, a heat dissipation cavity is arranged in the heat dissipation bottom plate, a liquid inlet hole and a liquid outlet hole which are arranged along two ends of a diagonal line are formed in the bottom of the heat dissipation cavity, and the liquid inlet hole and the liquid outlet hole are respectively connected with a first liquid inlet pipe and a first liquid outlet pipe which are arranged on the box body. Compared with the prior art, the motor controller is arranged in the axial direction of the driving motor, so that a connecting structure between the controller and the traditional separated structure of the motor is eliminated, the space occupation range of a driving control system in the whole vehicle is reduced, the quality of the driving control system is reduced, and the design requirements of light weight, miniaturization and integration are met.

Description

Axially integrated electric automobile motor control system
Technical Field
The invention relates to the field of electric automobile drive control systems, in particular to an axially integrated electric automobile motor control system.
Background
With the rapid development of new energy automobiles, the related technology becomes mature day by day, the internal space of the automobile becomes more and more compact, and the miniaturization, the light weight and the integration become the mainstream direction for the development of the new energy automobiles. The driving motor control system is used as a core component of a new energy automobile, and a series of defects of large space volume, complex wiring, low system reliability, poor stability and the like brought by the traditional separated structure are gradually revealed, so that the requirement of the development of the times is difficult to meet. If the controller and the driving motor are combined into a whole, the occupied space volume of the driving control system in the whole vehicle can be effectively reduced, the manufacturing cost of the controller and the driving motor is reduced, and the stability of the driving control system is improved. However, because the size of the controller is large, the controller is integrated right above the driving motor in the conventional universal integration mode, so that the size of an assembly cannot be effectively reduced, and the structure is heavy and complex; secondly, the controller and the driving motor can generate a large amount of heat in work, the driving motor and the controller cooling system are connected in series, the driving motor and the controller cooling system are inconvenient to effectively dissipate heat in time, and the performance of each other can be reduced by the coupled thermal field effect. How to integrate effectively, reduce the volume and the quality of assembly to in time cool off driving motor and controller, reduce the interact that generates heat each other, become the main problem that needs to solve urgently.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing an axially integrated motor control system for an electric vehicle.
The purpose of the invention can be realized by the following technical scheme:
an axially integrated electric automobile motor control system comprises a driving motor and a motor controller, wherein the motor controller comprises a box body, and a power module, a control panel, a thin film capacitor, a filter, a current sensor and a three-phase output polar plate which are arranged in the box body;
the motor controller is arranged on the axial rear end face of the driving motor; the power module comprises a drive plate, an IGBT module and a heat dissipation bottom plate, wherein the drive plate, the IGBT module and the heat dissipation bottom plate are sequentially arranged from top to bottom, a heat dissipation cavity is arranged in the heat dissipation bottom plate, a liquid inlet hole and a liquid outlet hole are formed in the bottom of the heat dissipation cavity and are formed in two ends of a diagonal line, and the liquid inlet hole and the liquid outlet hole are respectively connected with a first liquid inlet pipe and a first liquid outlet pipe which are arranged on the box body.
Preferably, a Pin-Fin structure is arranged at the bottom of the IGBT module and is arranged in the heat dissipation cavity of the heat dissipation bottom plate.
Preferably, the heat dissipation bottom plate adopts a water cooling mode, and a cooling loop adopting an oil cooling mode is arranged in the driving motor.
Preferably, the three-phase output polar plate comprises a three-phase switching copper bar and a three-phase fixed support, and the three-phase output polar plate is integrated on the three-phase fixed support through an injection molding process.
Preferably, the current sensor is fixed on the IGBT module, one end of the three-phase switching copper bar penetrates through the current sensor and is electrically connected with the output end of the IGBT module, and the other end of the three-phase switching copper bar is electrically connected with the three-phase input end of the driving motor.
Preferably, the bottom surface in the box is equipped with a plurality of first pillars that are used for installing the heat dissipation bottom plate, still is equipped with the second pillar that is higher than first pillar, three-phase output polar plate is fixed on the second pillar, current sensor is located the below of three-phase output polar plate.
Preferably, the heat dissipation bottom plate, the thin film capacitor and the filter are all fixed at the bottom of the box body, and the control board is fixed above the thin film capacitor.
Preferably, the drive plate and the control plate are mounted side by side at the same height.
Preferably, the input end of the thin film capacitor penetrates through the center of the filter to be connected with the high-voltage bus plug-in, and the wire harness end of the low-voltage plug-in is plugged into a socket on the control board to realize electrical connection.
Preferably, the bottom surface of the heat dissipation bottom plate is provided with a cylindrical groove used as a rotational assembly space of the driving motor.
Compared with the prior art, the invention has the following advantages:
1. the motor controller is installed in the axial direction of the drive motor, the motor controller box is used as a rear end cover of the drive motor, a bearing and a rotary transformation of the drive motor are directly installed on the bottom surface of the controller box, a connecting structure between the controller and a traditional motor separating structure is removed, the controller and the drive motor are effectively integrated into an assembly structure, the space occupation range of the drive control system in the whole vehicle is reduced, the quality of the drive control system is also reduced, the light weight, miniaturization and integration design requirements are met, and the motor controller has the advantages of being simple in structural arrangement, low in cost, simple in assembly process, reliable in sealing performance, good in heat dissipation performance and the like.
2. The power module comprises an IGBT module, a drive board and a heat dissipation bottom plate, wherein a Pin-Fin structure is arranged at the bottom of the IGBT module, and the Pin-Fin structure is arranged in a rectangular cavity in the heat dissipation bottom plate, so that the heat dissipation area is increased, and the heat dissipation capacity of the controller is improved; meanwhile, the IGBT module and the two main electric parts of the control panel are integrated on the radiating bottom plate as a whole, so that the installation volume of the whole power module is greatly reduced, the integration degree of the whole motor controller is improved, and the integration degree of the whole system is improved.
3. The motor controller and the driving motor are respectively provided with two independent cooling loops, the motor controller adopts a liquid cooling mode, cooling liquid flows into the heat dissipation bottom plate through the first liquid inlet pipe and flows out through the first liquid outlet pipe, cooling and heat dissipation of the IGBT module are completed, the contact area of the power module, the heat dissipation bottom plate and the box body is reduced, the mutual interference and the coupling effect generated by heating of the driving motor and the controller are reduced, and the performance influence between the driving motor and the controller is reduced; the cooling circuit of the driving motor adopts an oil cooling mode, cooling oil enters the cooling oil circuit inside the motor through the second liquid inlet pipe and flows out of the second liquid outlet pipe at last to cool the driving motor, and the two sets of cooling circuits are separated from each other and do not interfere with each other, so that the cooling effect is enhanced.
4. Through reserving control panel installation pillar on film capacitor's the cover of irritating, on control panel direct mount film capacitor, realized control panel and film capacitor's integrated installation, drive plate and control panel are installed side by side at same height simultaneously, have reduced electromagnetic interference between the two, have also cancelled in the structure in the past the shield plate between drive plate, the control panel for inner space is more compact, and the structure is more simple, and it is more convenient to install.
5. Three-phase output polar plate includes three-phase switching copper bar and three-phase fixing support, the three-phase switching copper bar is integrated on three-phase fixing support through injection molding process realization, three-phase fixing support installs on two high second pillars of box subassembly, current sensor and power module subassembly output electrical connection are passed to three-phase switching copper bar one end, the other end then with driving motor three-phase input electrical connection, this kind of mode of connection is simple, the chaotic problem of wiring between motor controller and the driving motor among the current motor control system has been solved.
Drawings
FIG. 1 is a schematic perspective view of a motor control system according to the present invention;
FIG. 2 is a partial exploded view of the motor control system of the present invention;
FIG. 3 is a partial exploded view of a power module of the motor control system of the present invention;
fig. 4 is a schematic front structural view of a heat dissipation base plate of the motor control system of the present invention;
FIG. 5 is a schematic view of a reverse side of a heat sink base plate of the motor control system of the present invention;
FIG. 6 is a schematic structural diagram of a case of the motor control system of the present invention;
fig. 7 is a schematic diagram of a thin film capacitor structure of the motor control system of the present invention.
The figure is marked with: 1. the device comprises a driving motor, 2, a motor controller, 3, a first liquid inlet pipe, 4, a first liquid outlet pipe, 5, a second liquid inlet pipe, 6, a second liquid outlet pipe, 2-1, a box body, 2-2, a box cover, 2-3, a power module, 2-3-1, an IGBT module, 2-3-2, a driving board, 2-3-3, a radiating bottom board, 2-4, a control board, 2-5, a thin film capacitor, 2-6, a filter, 2-7, a high-voltage bus plug-in, 2-8, a low-voltage plug-in, 2-9, a current sensor, 2-10 and a three-phase output polar plate.
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.
Examples
As shown in fig. 1 and 2, the application provides an axially integrated electric vehicle motor control system, which solves the problems that the existing motor control system occupies a large space in the whole vehicle, has low integration level of electric control and a motor, and is generally integrated right above the motor to cause a larger volume. The system comprises a driving motor 1 and a motor controller 2, wherein the motor controller 2 is arranged on the axial rear end face of the driving motor 1. The motor controller 2 comprises a box body 2-1, a power module 2-3 arranged in the box body 2-1, a control board 2-4, a thin film capacitor 2-5, a filter 2-6, a current sensor 2-9 and a three-phase output polar plate 2-10, wherein a box cover 2-2 is arranged on an opening of the box body 2-1. The power modules 2-3 are respectively connected with the output ends of the film capacitors 2-5 and the input ends of the three-phase output polar plates 2-10, and the output ends of the three-phase output polar plates 2-10 are electrically connected with the three-phase input end of the driving motor 1. The first liquid inlet pipe 3 and the first liquid outlet pipe 4 are fixed on the box body 2-1, and the second liquid inlet pipe 5 and the second liquid outlet pipe 6 are fixed on the shell of the driving motor 1.
As shown in FIG. 3, the power module 2-3 comprises a driving board 2-3-2, an IGBT module 2-3-1 and a heat dissipation bottom board 2-3-3 which are arranged from top to bottom in sequence, wherein the driving board 2-3-2 is fixed above the IGBT module 2-3-1 and is electrically connected with a signal pin of the IGBT module 2-3-1. As shown in FIG. 4, a heat dissipation cavity is arranged in the heat dissipation bottom plate 2-3-3, a liquid inlet hole and a liquid outlet hole are arranged at the bottom of the heat dissipation cavity along the two ends of the diagonal line, and the liquid inlet hole and the liquid outlet hole are respectively connected with a first liquid inlet pipe 3 and a first liquid outlet pipe 4 arranged on the box body 2-1. As shown in FIG. 6, the bottom surface of the box 2-1 is provided with two cylindrical holes respectively communicating the first liquid inlet pipe 3 and the first liquid outlet pipe 4 on the box 2-1, and the cylindrical holes are respectively communicated with the liquid inlet hole and the liquid outlet hole of the heat dissipation bottom plate 2-3-3 in a matching manner, so as to form a complete cooling system. The bottom of the IGBT module 2-3-1 is provided with a Pin-Fin structure which is arranged in the heat dissipation cavity of the heat dissipation bottom plate 2-3-3. As shown in fig. 5, the bottom surface of the heat-dissipating base plate 2-3-3 has a cylindrical recess, which is mainly used as a space for rotatably mounting the driving motor 1.
The motor control system adopts two sets of cooling systems for heat dissipation, namely a first cooling system and a second cooling system. The inlet and the outlet of the first cooling system are respectively connected with a first liquid inlet pipe 3 and a first liquid outlet pipe 4 and are mainly used for cooling the motor controller 2, and cooling liquid adopts a liquid cooling mode; the inlet and the outlet of the second cooling system are respectively connected with a second liquid inlet pipe 5 and a second liquid outlet pipe 6 and are mainly used for cooling the driving motor 1, and the cooling liquid adopts an oil cooling mode. The two cooling system loops operate independently of each other without mutual interference.
The three-phase output polar plate 2-10 comprises a three-phase switching copper bar and a three-phase fixed support, and the three-phase output polar plate 2-10 is integrated on the three-phase fixed support through an injection molding process. The current sensor 2-9 is fixed on the IGBT module 2-3-1, one end of the three-phase switching copper bar penetrates through the current sensor 2-9 to be electrically connected with the output end of the IGBT module 2-3-1, and the other end of the three-phase switching copper bar is electrically connected with the three-phase input end of the driving motor 1.
In this embodiment, as shown in fig. 6, the bottom surface in the box 2-1 is provided with 10 shorter first support columns for mounting the heat dissipation bottom plates 2-3-3, and is further provided with a second support column higher than the first support columns, and the three-phase output plate 2-10 is fixed on the second support column, so that the current sensor 2-9 is located below the three-phase output plate 2-10.
The heat dissipation bottom plate 2-3-3, the thin film capacitor 2-5 and the filter 2-6 are all fixed at the bottom of the box body 2-1. As shown in FIG. 7, a control board mounting pillar is reserved on the cover of the thin film capacitor 2-5, and the control board 2-4 is directly mounted on the thin film capacitor 2-5, so that the integrated mounting of the control board 2-4 and the thin film capacitor 2-5 is realized. The driving plate 2-3-2 and the control plate 2-4 are arranged at the same height side by side, so that the electromagnetic interference between the driving plate 2-3-2 and the control plate 2-4 is reduced, and a shielding plate between the driving plate 2-3-2 and the control plate 2-4 in the prior structure is also eliminated, so that the internal space is more compact. The box body 2-1 is provided with a high-voltage bus plug-in 2-7 and a low-voltage plug-in 2-8, the input end of the thin-film capacitor 2-5 penetrates through the center of the filter 2-6 to be connected with the high-voltage bus plug-in 2-7, and the wiring harness end of the low-voltage plug-in 2-8 is inserted into the socket on the control board 2-4 to realize electrical connection.
In the embodiment, the upper surface of the box cover 2-2 is provided with three irregular bulges, so that the interference of electronic devices is avoided, and the strength of the box cover 2-2 is improved.
The specific assembly process of the system is as follows:
fixing a box body 2-1 on the axial rear end surface of a driving motor 1, then respectively pressing and fixing a first liquid inlet pipe 3 and a first liquid outlet pipe 4 at a water inlet and a water outlet of the box body 2-1, and then pressing and fixing a second liquid inlet pipe 5 and a second liquid outlet pipe 6 on the outer surface of a shell of the driving motor 1; fixing the heat dissipation bottom plate 2-3-3 and the thin film capacitor 2-5 on the bottom surface of the box body 2-1, fixing the IGBT module 2-3-1 on the heat dissipation bottom plate 2-3-3, and electrically connecting the input end of the IGBT module 2-3-1 with the output end of the thin film capacitor 2-5; fixing a current sensor 2-9 on the IGBT module 2-3-1, fixing a driving board 2-3-2 on the IGBT module 2-3-1, and completing electrical connection between a signal pin of the IGBT module 2-3-1 and the driving board 2-3-2 through soldering; then fixing the three-phase output polar plate 2-10 on the box body 2-1, wherein the input end of the three-phase output polar plate 2-10 penetrates through the current sensor 2-9 to be electrically connected with the output end of the IGBT module 2-3-1, and the output end of the three-phase output polar plate 2-10 is electrically connected with the three-phase input end of the driving motor 1; then fixing the control board 2-4 above the thin film capacitor 2-5, fixing the filter 2-6 on the bottom surface of the box body 2-1, and enabling the input end of the thin film capacitor 2-5 to penetrate through the center of the filter 2-6; fixing a high-voltage bus plug-in 2-7 and a low-voltage plug-in 2-8 on the side wall of the box body 2-1, electrically connecting a terminal of the high-voltage plug-in with an input end of the thin film capacitor 2-5, and inserting a wiring harness end of the low-voltage plug-in 2-8 into a socket on the control board 2-4 to realize electrical connection; and finally, fixing the box cover 2-2 on the box body 2-1 to complete the assembly of the whole motor controller 2.
In the working process of the motor control system, two circulating cooling devices are arranged on the electric vehicle, wherein one cooling device adopts oil cooling, and the other cooling device adopts liquid cooling. A first cooling system is driven in a liquid cooling mode, cooling liquid enters the motor controller 2 from a first liquid inlet pipe 3 and then enters a heat dissipation cavity of the heat dissipation bottom plate 2-3-3 to cool the IGBT module 2-3-1 in a heat dissipation mode, and then the cooling liquid flows out from a first liquid outlet pipe 4 to finish cooling the motor controller 2; synchronous cooling oil enters an internal oil circuit of the driving motor 1 through the second liquid inlet pipe 5, then cools each internal part, and finally flows out of the second liquid outlet pipe 6 to complete cooling of the driving motor 1.

Claims (10)

1. An axially integrated electric automobile motor control system comprises a driving motor and a motor controller, wherein the motor controller comprises a box body, and a power module, a control panel, a thin film capacitor, a filter, a current sensor and a three-phase output polar plate which are arranged in the box body; the method is characterized in that:
the motor controller is arranged on the axial rear end face of the driving motor; the power module comprises a drive plate, an IGBT module and a heat dissipation bottom plate, wherein the drive plate, the IGBT module and the heat dissipation bottom plate are sequentially arranged from top to bottom, a heat dissipation cavity is arranged in the heat dissipation bottom plate, a liquid inlet hole and a liquid outlet hole are formed in the bottom of the heat dissipation cavity and are formed in two ends of a diagonal line, and the liquid inlet hole and the liquid outlet hole are respectively connected with a first liquid inlet pipe and a first liquid outlet pipe which are arranged on the box body.
2. The axially integrated motor control system of an electric vehicle according to claim 1, wherein a Pin-Fin structure is disposed at the bottom of the IGBT module, and the Pin-Fin structure is disposed in the heat dissipation cavity of the heat dissipation base plate.
3. The axially integrated motor control system of claim 1, wherein the heat sink base plate is water-cooled, and the driving motor is provided with a cooling circuit that is oil-cooled.
4. The axially integrated electric vehicle motor control system of claim 1, wherein the three-phase output pole plate comprises a three-phase switching copper bar and a three-phase fixed support, and the three-phase output pole plate is integrated on the three-phase fixed support through an injection molding process.
5. The axially integrated motor control system of claim 4, wherein the current sensor is fixed on the IGBT module, one end of the three-phase switching copper bar penetrates through the current sensor to be electrically connected with the output end of the IGBT module, and the other end of the three-phase switching copper bar is electrically connected with the three-phase input end of the driving motor.
6. The axially integrated motor control system of claim 5, wherein a plurality of first support columns for mounting the heat dissipation bottom plate and a second support column higher than the first support columns are arranged on the bottom surface in the box body, the three-phase output pole plate is fixed on the second support column, and the current sensor is located below the three-phase output pole plate.
7. The axially integrated motor control system of claim 1, wherein said heat sink base, said thin film capacitor and said filter are fixed to the bottom of said housing, and said control board is fixed above said thin film capacitor.
8. The axially integrated electric vehicle motor control system of claim 7, wherein said drive plate and control plate are mounted side-by-side at the same elevation.
9. The axially integrated electric vehicle motor control system of claim 7, wherein the input terminal of the thin film capacitor is connected to the high voltage bus bar insert through the center of the filter, and the harness terminal of the low voltage insert is plugged into a socket on the control board for electrical connection.
10. The axially integrated motor control system of claim 1, wherein the bottom surface of the heat sink base plate is provided with a cylindrical recess for a rotational assembly space of the driving motor.
CN201911295018.8A 2019-12-16 2019-12-16 Axially integrated electric automobile motor control system Pending CN112994367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911295018.8A CN112994367A (en) 2019-12-16 2019-12-16 Axially integrated electric automobile motor control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911295018.8A CN112994367A (en) 2019-12-16 2019-12-16 Axially integrated electric automobile motor control system

Publications (1)

Publication Number Publication Date
CN112994367A true CN112994367A (en) 2021-06-18

Family

ID=76343385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911295018.8A Pending CN112994367A (en) 2019-12-16 2019-12-16 Axially integrated electric automobile motor control system

Country Status (1)

Country Link
CN (1) CN112994367A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115665970A (en) * 2022-10-08 2023-01-31 江苏东海半导体股份有限公司 IGBT drive protection circuit board
CN117156749A (en) * 2023-09-11 2023-12-01 小米汽车科技有限公司 Motor controller, electric drive assembly and vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115665970A (en) * 2022-10-08 2023-01-31 江苏东海半导体股份有限公司 IGBT drive protection circuit board
CN115665970B (en) * 2022-10-08 2023-11-21 江苏东海半导体股份有限公司 IGBT drive protection circuit board
CN117156749A (en) * 2023-09-11 2023-12-01 小米汽车科技有限公司 Motor controller, electric drive assembly and vehicle

Similar Documents

Publication Publication Date Title
CN107294312B (en) A kind of electric vehicle motor controller structure
CN211151761U (en) Axially integrated electric automobile motor control system
CN109413958B (en) Vehicle-mounted charger device and automobile
CN210911983U (en) Integrated form electric drive system assembly and electric automobile
CN112994367A (en) Axially integrated electric automobile motor control system
JP2023527822A (en) MOTOR CONTROLLER AND VEHICLE INCLUDING THE SAME
KR20220098116A (en) Dc-dc converter
CN213846302U (en) Electronic terminal charger
CN214822623U (en) Integrated controller for electric automobile
WO2022218249A1 (en) Integrated vehicle inverter assembly, and vehicle
CN211151796U (en) Silicon carbide motor controller for electric automobile
CN115431791A (en) Motor controller with Boost function and motor
CN109104050B (en) A kind of electric machine controller and electric car
CN113496822A (en) Regular hexagon direct current filter capacitor
CN219108091U (en) Motor controller and vehicle
CN219873165U (en) Single-tube IGBT controller capacitor module and single-tube IGBT controller
CN113133234A (en) High-power-density motor controller for electric automobile
CN214045494U (en) Integrated motor controller
CN111114339A (en) Integrated three-in-one motor control system
CN219678905U (en) Power conversion module and vehicle-mounted charger
CN220493428U (en) Automobile motor controller
CN219592273U (en) Integrated Boost module structure
CN220915623U (en) Multifunctional module integrated vehicle control device
CN214900651U (en) Integrated motor inverter for electric automobile
CN113328657B (en) Dual-motor controller

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