CN105007020A - Motor controller using power module - Google Patents
Motor controller using power module Download PDFInfo
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- CN105007020A CN105007020A CN201510454729.0A CN201510454729A CN105007020A CN 105007020 A CN105007020 A CN 105007020A CN 201510454729 A CN201510454729 A CN 201510454729A CN 105007020 A CN105007020 A CN 105007020A
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Abstract
The invention relates to a motor controller using a power module. The motor controller comprises a heat radiating bottom board and an outer casing body which is located on the heat radiating bottom board. The outer casing body is fixedly connected with the heat radiating bottom board. A power module which is connected with and drives a motor is arranged on the heat radiating bottom board. A control board which is used for generating a motor control signal and controls on and off of the power module is arranged above the power module. A power circuit board is arranged between the control board and the power module. The power module is electrically connected with the control board through a pin on the power circuit board. A power supply connection column which is connected with an external power supply and the power module and a motor connection column which is connected with the motor and the power module are arranged on the power circuit board. The end parts of the power supply connection column and the motor connection column run out of the outer casing body. According to the invention, the structure is compact; the space volume of the motor controller is reduced; the reliability and the productivity of the motor controller are improved; installation and maintenance costs are reduced; and a high-power use requirement is met.
Description
Technical field
The present invention relates to a kind of controller, especially a kind of electric machine controller adopting power model, belong to the technical field that power controls.
Background technology
Along with the maturation of battery technology and high-power electric and electronic technology, new energy electric motor vehicle develops rapidly, optimizes energy production structure, improves environment.New energy vehicle mainly contains electric system, electric-control system, battery system composition, and battery system is energy storage mechanism, and electric system is motion, and electric-control system is main controlling organization, and the core of electric-control system is electric machine controller.
Electric machine controller common in the market comprises control drive circuit, power transistor circuits, radiator etc., controls drive circuit and produces motor control signal according to transducing signal, control the switch of power transistor circuits, by power transistor circuits drive motors system; Electric machine controller heat outwardly transmits by radiator.Usually, all functions Unit Design in electric machine controller at one piece of PCB(Printed Circuit Board, printed circuit board) on, namely realize all functions of electric machine controller by one piece of PCB.On PCB, power transistor circuits adopts discrete semiconductor power device to realize, an electric machine controller needs multiple discrete power device, the electric machine controller of usual 3KW will use 36 MOSFET power tubes, and the controller of 8KW, reach 96 MOSFET power tubes in power transistor circuits especially.
Along with the increase of power, the power tube quantity that electric machine controller is used also increases.After power tube quantity increases, create following problems: being first need in production process to design the drive circuit of each power tube and install, is the grid interference reducing power tube, higher to the cabling requirement of PCB; In addition, need to weld each power tube, install loaded down with trivial details, rate of finished products is low; The detection difficult when later period maintenance, changes loaded down with trivial details simultaneously.
Secondly, due in power tube production process, the difference of conducting resistance, puncture voltage etc. is there is between different capacity pipe, in real work engineering, when heavy load is run, the heat radiation of electric machine controller internal power pipe is uneven, the current unevenness between different capacity pipe can be caused even, easily cause Partial Power pipe to lose efficacy because electric current is excessive; In addition, due to the inconsistency of different capacity pipe puncture voltage, when being subject to voltge surge, the power tube of some low breakdown voltages punctures in advance, causing trouble.Power tube parameter distribution uneven, electric machine controller is designed and malfunction elimination more complicated.And in Market competition, for reduce costs and the limit use power tube time, the problems referred to above are more serious.Along with cart, tricycle, the power requirement of four-wheel electric automobile to electric machine controller progressively improve, when high-power, big current, the problems such as the electric machine controller reliability of a large amount of discrete power pipe are adopted to give prominence to further.
For solving the problem of many power tubes parallel connection, prior art often adopts in the source of MOSFET pipe, leak junction installs copper bar additional, to improve the reliability by big current; Or discrete MOSFET grouping is formed U, V, W three-phase module, install.Though aforesaid way effectively extends the scope of application of MOSFET, do not solve root problem, complicate fabrication process, under high-power high-current, still there is hidden danger.
Moreover the thermal capacity that the packing forms of discrete power tube determines itself is smaller, dispelling the heat is spread out of by heat transfer, there is the problem that radiating efficiency is low.And discrete power tube has respective encapsulation, when multitube is installed, take larger space, volume is larger.As mentioned above, along with power increases, discrete power tube causes problems, the increase of power tube quantity, and the reliability of controller is reduced, cause driving circuits further complicated simultaneously, the productivity ratio of controller is declined, and volume increases, and these become the main cause of electric machine controller cost increase, limit the scope of application of electric machine controller, become the bottleneck that electric machine controller design is produced.
The shortcoming of discrete device is extensively familiar with, and technically also tends to gradually adopt power model in the controller.Power model provides new opportunity, in large power supply conversion occasion, has occurred the application utilizing IGBT power model.And in controller for electric vehicle field, occur multiple discrete device being integrated on one piece of PCB and formed power model, in module, utilized reasonable line arrangement, solved the consistency problem between discrete device to a certain extent, reduce the defect of discrete device, but fail to tackle the problem at its root.
Reduce the complexity of Controller gain variations in the urgent need to introducing new power device further in Controller gain variations, need the new layout of research and structure simultaneously, the useful signal connected mode of research controller various piece, and mutually nested assembly method, design more reliable, compact, that radiating efficiency is high low cost controller with this.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of electric machine controller adopting power model is provided, its compact conformation, reduce the spatial volume of electric machine controller, improve reliability and the production efficiency of electric machine controller, reduce installation and maintenance cost, meet powerful instructions for use.
According to technical scheme provided by the invention, the electric machine controller of described employing power model, comprise radiating bottom plate and be positioned at the shell body on described radiating bottom plate, described shell body is fixedly connected with radiating bottom plate; Radiating bottom plate is arranged for connecting and the power model of drive motors, arrange above described power model for generation of motor control signal and control the control board of power model on off state, between described control board and power model, be provided with power circuit board, power model is electrically connected with control board by the contact pin on power circuit board; Also arrange the power supply joint pin be connected with external power source for power model and the motor joint pin be connected with motor for power model at power circuit board, the end of described power supply joint pin, motor joint pin passes outside shell body.
Described power circuit board is arranged three power supply joint pins and two motor joint pins, motor joint pin, power supply joint pin lay respectively at the both sides of power circuit board, and power supply joint pin, motor joint pin first pass outside shell body through after control board again.
The radiating surface of described power model is close to radiating bottom plate, power model adopts single-phase bridge, three-phase bridge or H-bridge circuit, and some electrochemical capacitors for burning voltage are set on power circuit board, one end of described electrochemical capacitor is connected on power circuit board, and the other end of electrochemical capacitor is embedded in the electric capacity location notch of radiating bottom plate.
Described power circuit board is provided with the control board support column for support and control plate, and described control board support column is distributed in the end pin of power circuit board.
Control board arranges the communication interface be used for external communication, and described communication interface passes outside shell body.
Described power supply joint pin, motor joint pin all adopt copper post, and control board is provided with the control board power supply post holes allowing power supply joint pin to pass and the control board motor post holes allowing motor joint pin to pass.
Described radiating bottom plate adopts aluminium sheet, and radiating bottom plate is fastenedly connected by bolt and shell body.
Advantage of the present invention: power device adopts the structure of power model, and power model is arranged on radiating bottom plate, thus the discrete component quantity of electric machine controller can be made to reduce in a large number, can improve electric machine controller reliability, and be easy to installation and maintenance; Meanwhile, the thermal capacity of power model is large, and heat radiation is more effective, further increases the reliability of controller.Realized the function of electric machine controller by the stacked connection fit structure of power model, power circuit board, control board, it is larger that stacked mounting design makes the power in unit volume do, and can be used for large-power occasions; Power model adopts contact pin to be electrically connected with power circuit board, and contact pin type design has effectively shortened the transmission path of signal, and reduce the impact of parasitic parameter, controller is more reliable.
Accompanying drawing explanation
Fig. 1 is the fundamental block diagram of existing electric motor car.
Fig. 2 is the functional schematic of the electric machine controller of existing electric motor car.
Fig. 3 is structural representation of the present invention.
Fig. 4 is exploded view of the present invention.
Fig. 5 is the structural representation of control board of the present invention.
Fig. 6 is the structural representation of power circuit board of the present invention.
Fig. 7 is the structural representation of radiating bottom plate of the present invention.
Description of reference numerals: 1-shell body, 2-control board, 3-power circuit board, 4-power model, 5-radiating bottom plate, 6-communication interface, 7-contact pin, 8-motor joint pin, 9-power supply joint pin, 10-shell body power supply post holes, 11-shell body communication interface hole, 12-shell body motor post holes, 13-shell body installs fixing hole, 14-control board motor post holes, 15-control board power supply post holes, 16-electrochemical capacitor, 17-base plate installs fixing hole, 18-backplane power module installing zone, 19-power circuit board power model installing zone, 20-electric capacity location notch and 21-control board support column.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
Electric machine controller of the present invention is used for electric motor car, and as shown in Figure 1, it is power resources with battery to the basic structure of electric motor car, take motor as actuator, and controller, as controlling organization, completes the controlling functions of speed governing, brake, instrument display etc.
As shown in Figure 2, electric machine controller using System on Chip/SoC as kernel control chip, the reception of completion system control signal and conversion.Overcurrent protection mainly completes the detection of electric motor car median generatrix electric current, completes the protection of overcurrent; Current detecting mainly completes the detection of electric machine phase current in electric motor car, controls for electric machine rotation; Voltage detecting, for detecting cell voltage, completes the safeguard measures such as under-voltage or overvoltage under different voltage condition; Overheat protector mainly monitors the temperature of electric machine controller, ensures that electric machine controller is effectively worked in rational temperature; Hall sensing is for detecting position and the tach signal of motor, and electric machine controller completes the control of motor according to these feedback signals; Electric brake mainly controls motor effective brake when brake or exception; Speed-regulating signal controls the speed of electric machine rotation; Power drive completes and drives the high efficient and reliable of power model, and power model mainly completes the power delivery to motor.
As shown in Figure 3 and Figure 4, in order to reduce the spatial volume of electric machine controller, improve reliability and the formation efficiency of electric machine controller, reduce installation and maintenance cost, meet powerful instructions for use, the present invention includes radiating bottom plate 5 and be positioned at the shell body 1 on described radiating bottom plate 5, described shell body 1 is fixedly connected with radiating bottom plate 5; Radiating bottom plate 1 is arranged for connecting and the power model 4 of drive motors, arrange for generation of motor control signal above described power model 4 and control the control board 2 of power model 4 on off state, between described control board 2 and power model 4, be provided with power circuit board 3, power model 4 is electrically connected with control board 2 by the contact pin 7 on power circuit board 3; Also arrange at power circuit board 3 and be used for the power supply joint pin 9 that power model 4 is connected with external power source and the motor joint pin 8 be connected with motor for power model 4, the end of described power supply joint pin 9, motor joint pin 8 passes outside shell body 1.
Particularly, described radiating bottom plate 5 adopts aluminium sheet, the rectangular shape of radiating bottom plate 5, the shape of shell body 1 and the shape of radiating bottom plate 5 suitable, shell body 1 gland is on radiating bottom plate 5, and shell body 1 equals radiating bottom plate 5 by bolt, screw is fastenedly connected.Shell body 1 gland on radiating bottom plate 5 after, form electric machine controller in shell body 1 and between radiating bottom plate 5 and arrange the accommodation space installed.During concrete enforcement, the bottom of shell body 1 is provided with shell body and installs fixing hole 13, radiating bottom plate 5 arranges base plate and installs fixing hole 17, and it is corresponding that base plate installation fixing hole 17 and shell body install fixing hole 13.Shell body 1 gland on radiating bottom plate 5 after, shell body installs fixing hole 13 and base plate, and to install fixing hole 17 corresponding, sets set bolt, thus shell body 1 can be fastened on radiating bottom plate 5 in shell body installation fixing hole 13, base plate installation fixing hole 17.
In the embodiment of the present invention, power model 4 is directly placed on radiating bottom plate 5, power model 4 can be connected with motor by motor joint pin 8, and power model 4 can be connected with external power source by power supply joint pin 9, and power model 4 is mated with control board 2 by contact pin 7 and is electrically connected.During concrete enforcement, control board 2 comprises the System on Chip/SoC in Fig. 2 and the power driving circuit for driving power module 4, the physical circuit form of the System on Chip/SoC in control board 2, power driving circuit and between the relation that the cooperatively interacts form that the art all can be adopted conventional, be specially known by the art personnel, repeat no more herein.Control board 2 produces motor control signal according to the signal of outside, and motor control signal is loaded on power model 4 by power driving circuit and contact pin 7, to control the conducting state of switch in power model 4.When power model 4 is in conducting state, rotate according to motor control signal drive motor by motor joint pin 9.
In the embodiment of the present invention, by the problem that power model 4 can avoid power tube in prior art to adopt discrete form to bring, the functional structure of electric machine controller is realized by the form of this stacking cooperation of power model 4, power circuit board 3 and control board 2, thus the encapsulation volume of electric machine controller can be reduced, power model 4 is connected with power supply by the power supply joint pin 9 on power circuit board 3 and is connected with motor by motor joint pin 8, thus the powerful instructions for use of big current can be met, improve the scope of application of electric machine controller.
Further, described power circuit board 3 is arranged three power supply joint pins 9 and two motor joint pins 8, motor joint pin 8, power supply joint pin 9 lay respectively at the both sides of power circuit board 3, and power supply joint pin 9, motor joint pin 8 first pass outside shell body 1 through after control board 2 again.
In the embodiment of the present invention, motor joint pin 8, power supply joint pin 9 adopt copper post, be connected one by one with the U phase of motor, V phase and W phase respectively by three motor joint pins 8, in two power supply joint pins 9, one for ground connection, one for connecting the power supply of motor, motor joint pin 8, power supply joint pin 9 can guarantee in use big current by property, guarantee the reliability for high-power use occasion.Motor joint pin 8, power supply joint pin 9 vertical distribution are on power circuit board 3, be positioned at power model 4 below power circuit board 3 to be mated with motor joint pin 8, power supply joint pin 9 by corresponding connecting line and be connected, concrete type of attachment can be selected as required, be specially known by the art personnel, no longer describe in detail herein.The top of motor joint pin 8, the top of power supply joint pin 9 pass outside shell body 1, the connection needed for being realized by the end be positioned at outside shell body 1.
During concrete enforcement, shell body 1 is arranged shell body motor post holes 10 and shell body power supply post holes 12, in order to match with motor joint pin 8, power supply joint pin 9, shell body motor post holes 10 on shell body 1 is three, shell body power supply post holes 12 on shell body 1 is two, can be led to motor joint pin 8, power supply joint pin 9 by shell body motor post holes 10, shell body power supply post holes 12, so that motor joint pin 8, power supply joint pin 9 are drawn.
As shown in Figure 5, described power circuit board 3 is provided with the control board support column 21 for support and control plate 2, and described control board support column 21 is distributed in the end pin of power circuit board 3.
Control board 2 arranges the communication interface 6 be used for external communication, and described communication interface 6 passes outside shell body 1.Control board 2 is provided with the control board motor post holes 14 allowing motor joint pin 8 to pass and the control board power supply post holes 15 allowing power supply joint pin 9 to pass.
In the embodiment of the present invention, control board 2 is positioned at the top of power circuit board 3, power circuit board 3 is rectangular shape also, control board support column 21 is distributed in four end angles of power circuit board 3, after being connected with control board 2 by control board support column 21, control board 2 can be realized to be supported and fixed on power circuit board 3.Conveniently maintenance waits external communication, and control board 2 is provided with communication interface 6, and communication interface 6 is positioned at the center of control board 2, and communication interface 6 protrudes on control board 2.Shell body 1 is provided with interface position hole 11, and after shell body 1 and radiating bottom plate 5 are fixing, communication interface 6 passes outside shell body 1 by interface position hole 11, is convenient to communication and connects.Communication interface 6 is mainly connected with the System on Chip/SoC of control board 2, and concrete type of attachment and the control board 2 of communication interface 6 and control board 2 are known by the art personnel by the concrete form that communication interface 6 is connected with external communication, repeat no more herein.
Because motor joint pin 8, power supply joint pin 9 vertical distribution are on power circuit board 3, and motor joint pin 8, power supply joint pin 9 will pass outside shell body 1, therefore, control board 2 arranges control board motor post holes 14 and control board power supply post holes 15, motor joint pin 8 is through control board motor post holes 14, power supply joint pin 9 through after control board power supply post holes 15, and control board 2 can not contact with motor joint pin 8, power supply joint pin 9.
The radiating surface of described power model 4 is close to radiating bottom plate 1, power model 4 adopts single-phase bridge, three-phase bridge or H-bridge circuit, and some electrochemical capacitors 16 for burning voltage are set on power circuit board 3, one end of described electrochemical capacitor 16 is connected on power circuit board 3, and the other end of electrochemical capacitor 16 is embedded in the electric capacity location notch 20 of radiating bottom plate 5.
During concrete enforcement, power model 4 contains multiple power bridge structure, can be single-phase bridge, three-phase bridge, at least one in H-bridge circuit structure; Power device in power model 4 comprises power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, field effect transistor), IGBT (Insulated Gate Bipolar Transistor, igbt), at least one in power diode (POWER Diode); Control, drive components and parts to comprise triode, IC, at least one in passive component.The concrete form of power model 4 and encapsulating structure can be selected as required, are specially known by the art personnel.Power model 4 effectively can reduce the quantity of discrete component, improves the reliability of electric machine controller, is easy to installation and maintenance, improves formation efficiency.
In the embodiment of the present invention, power model 4 adopts the form of single-phase bridge, after power model 4 adopts single-phase bridge, radiating bottom plate 5 needs arrange three power models 4, forms three-phase bridge by three power models 4.Illustrate in Fig. 6 and Fig. 7, the fit form of three power models 4 and power circuit board 3 and radiating bottom plate 5.In Fig. 6, the lower surface of power circuit board 3 arranges three power circuit board power model installing zones 19, power circuit board 3 lower surface removes power circuit board power model installing zone 19 and is outside equipped with a large amount of electrochemical capacitors 16, electrochemical capacitor 16 on power circuit board 3 is parallel with one another, to form larger electric capacity, described larger electric capacity can stablize busbar voltage.In the specific implementation, being connected with power device, System on Chip/SoC etc. the form coordinated by electric capacity is the technological means that this technology is commonly used, and repeats no more herein.In Fig. 7, radiating bottom plate 5 also has three backplane power module installing zones 18, in addition, radiating bottom plate 5 is also provided with electric capacity location notch 20, electric capacity location notch 20 can allow the end of electrochemical capacitor 16 to set, thus can realize the closely nested of electrochemical capacitor 16.Three power models 4 can realize the electrical connection with control board 2 by the contact pin 7 on power circuit board 3, certainly, the form such as short-term can also be adopted away except contact pin 7 to connect, by the concrete connection of contact pin 7 grade known by the art personnel, repeat no more herein.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the spirit and concept in the present invention or associate all should be thought within protection scope of the present invention.
Claims (7)
1. adopt an electric machine controller for power model, comprise radiating bottom plate (5) and be positioned at the shell body (1) on described radiating bottom plate (5), described shell body (1) is fixedly connected with radiating bottom plate (5); It is characterized in that: at the upper power model (4) arranged for connecting also drive motors of radiating bottom plate (5), arrange for generation of motor control signal in described power model (4) top and control the control board (2) of power model (4) on off state, between described control board (2) and power model (4), be provided with power circuit board (3), power model (4) is electrically connected with control board (2) by the contact pin (7) on power circuit board (3); Also arrange at power circuit board (3) and be used for the power supply joint pin (9) that power model (4) is connected with external power source and the motor joint pin (8) be connected with motor for power model (4), the end of described power supply joint pin (9), motor joint pin (8) passes shell body (1) outward.
2. the electric machine controller of employing power model according to claim 1, it is characterized in that: described power circuit board (3) is arranged three motor joint pins (8) and two power supply joint pins (9), motor joint pin (8), power supply joint pin (9) lay respectively at the both sides of power circuit board (3), and motor joint pin (8), power supply joint pin (9) first pass shell body (1) outward again through after control board (2).
3. the electric machine controller of employing power model according to claim 1, it is characterized in that: the radiating surface of described power model (4) is close to radiating bottom plate (1), power model (4) adopts single-phase bridge, three-phase bridge or H-bridge circuit, and some electrochemical capacitors for burning voltage (16) are set on power circuit board (3), one end of described electrochemical capacitor (16) is connected on power circuit board (3), and the other end of electrochemical capacitor (16) is embedded in the electric capacity location notch (20) of radiating bottom plate (5).
4. the electric machine controller of employing power model according to claim 1, it is characterized in that: described power circuit board (3) is provided with the control board support column (21) for support and control plate (2), and described control board support column (21) is distributed in the end pin of power circuit board (3).
5. the electric machine controller of employing power model according to claim 1, is characterized in that: be used for the communication interface (6) with external communication in the upper setting of control board (2), described communication interface (6) passes shell body (1) outward.
6. the electric machine controller of employing power model according to claim 2, it is characterized in that: described motor joint pin (8), power supply joint pin (9) all adopt copper post, control board (2) is provided with the control board motor post holes (15) allowing power supply joint pin (9) to pass and the control board motor post holes (14) allowing motor joint pin (8) to pass.
7. the electric machine controller of employing power model according to claim 1, is characterized in that: described radiating bottom plate (5) adopts aluminium sheet, and radiating bottom plate (5) is fastenedly connected by bolt and shell body (1).
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| CN201510454729.0A CN105007020A (en) | 2015-07-29 | 2015-07-29 | Motor controller using power module |
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| CN201510454729.0A CN105007020A (en) | 2015-07-29 | 2015-07-29 | Motor controller using power module |
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| CN106452207A (en) * | 2016-09-27 | 2017-02-22 | 上海工业自动化仪表研究院 | High-temperature driving module of DC brushless motor |
| CN106452219A (en) * | 2016-11-08 | 2017-02-22 | 上海拜骋电器有限公司 | Direct-current brushless switch |
| CN106452219B (en) * | 2016-11-08 | 2019-11-05 | 上海拜骋电器有限公司 | Brush DC switch |
| JP2018174652A (en) * | 2017-03-31 | 2018-11-08 | 住友重機械工業株式会社 | Power component |
| CN110574275A (en) * | 2017-04-27 | 2019-12-13 | 三菱电机株式会社 | power conversion unit |
| CN110574275B (en) * | 2017-04-27 | 2021-04-30 | 三菱电机株式会社 | Power conversion unit |
| CN107086842A (en) * | 2017-06-16 | 2017-08-22 | 龙海特尔福汽车电子研究所有限公司 | A kind of electric machine controller |
| CN108463051A (en) * | 2018-03-28 | 2018-08-28 | 珠海松下马达有限公司 | A kind of servo-driver |
| CN108463051B (en) * | 2018-03-28 | 2024-04-02 | 珠海松下马达有限公司 | Servo driver |
| CN108845529A (en) * | 2018-07-20 | 2018-11-20 | 北京友信宏科电子科技股份有限公司 | Controller for electric vehicle circuit board |
| TWI689064B (en) * | 2019-04-18 | 2020-03-21 | 威剛科技股份有限公司 | Controller device |
| TWI708544B (en) * | 2019-04-18 | 2020-10-21 | 威剛科技股份有限公司 | Controller device |
| WO2020211036A1 (en) * | 2019-04-18 | 2020-10-22 | 威刚科技股份有限公司 | Controller device |
| CN111836507A (en) * | 2019-04-18 | 2020-10-27 | 威刚科技股份有限公司 | Controller device |
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| CN111836507B (en) * | 2019-04-18 | 2023-05-05 | 威刚科技股份有限公司 | Controller device |
| CN116705728A (en) * | 2023-06-27 | 2023-09-05 | 先之科半导体科技(东莞)有限公司 | Field effect transistor with plug terminal structure |
| CN117580274A (en) * | 2024-01-15 | 2024-02-20 | 江苏金脉电控科技有限公司 | PCB-based motor controller processing method |
| CN117580274B (en) * | 2024-01-15 | 2024-04-12 | 江苏金脉电控科技有限公司 | PCB-based motor controller processing method |
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