CN105677947A - Method for testing heat dissipation of heat sink of electric vehicle motor controller - Google Patents
Method for testing heat dissipation of heat sink of electric vehicle motor controller Download PDFInfo
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- CN105677947A CN105677947A CN201511016086.8A CN201511016086A CN105677947A CN 105677947 A CN105677947 A CN 105677947A CN 201511016086 A CN201511016086 A CN 201511016086A CN 105677947 A CN105677947 A CN 105677947A
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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Abstract
The invention discloses a method for testing heat dissipation of a heat sink of an electric vehicle motor controller. The method comprises the following steps: having a three-dimensional design of a heat sink system of the motor controller and establishing a three-dimensional parameterization model on the heat sink system; conducting finite element simulation on the heat sink system with a finite element software Ansyslcepak and adopting a heat testing tool in building a heat testing system, and employing an authorization experiment on the simulation; on the condition of the authorization experiment on the simulation, employing an optimization module of the ANSYS software to optimize parameters of the heat sink system. Simulation drives innovation. Due to strong functional algorithm of the finite element software and development of computer hardware technology, simulation technology is employed in product research and development. The method of the invention shortens product development circle, lowers labor and finance investment required in product development, enhances product reliability and stability, accelerates research and development efficiency of enterprises, and greatly increases product value of enterprises.
Description
Technical field
The invention belongs to the radiating control technical field of the scatterer of electric vehicle motor controller, it is specifically related to the heat radiator dissipate heat testing method of a kind of electric vehicle motor controller.
Background technology
Increasingly sharpening and environmental problem further outstanding with energy dilemma, in addition whole world automobile pollution and newly add the surge of automobile every year, take fuel oil as the automobile of main power source, while fuel consumption, environment also cause serious pollution. People urgently wish to find a kind of environmental protection energy to come in the face of residing predicament at present, and motorcar electricization thus receives the concern of automobile people. First piece of battery in the world has been invented from AlessandroVolta in 1800, first battery being convenient to manufacture is devised to Dr.WilliamCruikshank in 1802, to the appearance of the lithium ion battery nineties in 20th century, along with people battery power is studied further deep, the market-oriented prospect of electromobile is further bright and clear. Volume of production and marketing at Chinese new-energy automobile in 2014 healed for 80,000 (not comprising low-speed electronic automobile) especially in pairs.
Entire car controller system, battery and BMS (battery management system), motor and motor controller system are called as three big difficult point technology of pure electric automobile. This block of entire car controller, through the technological accumulation of traditional vehicle, can solve at present, but this block of electric machine control device, the electric vehicle motor controller technical difficulty designing a high-level efficiency high stability low cost is still very big. The effect of motor controller controls obtains energy from battery, then control and drive-motor realizes the startup of motor, braking, acceleration and deceleration, its performance directly affects the performance of electric drive system for electric vehicles. But IGBT (InsulatedGateBipolarTransistor) insulated gate bipolar transistor heat generation density as its core component is very big, if the heat produced can not get good scattering and disappearing, very easily IGBT module is burnt.Report according to pertinent literature, the IGBT module disabling damage that IGBT module temperature that is that cause is crossed by heat radiation is bad and causes accounts for more than the 55 percent of all IGBT module damage rates, and the stable and high effective operation of IGBT module be unable to do without modular design of effectively dispelling the heat as can be seen here. In addition IGBT module Module Price costliness (the automobile-used level IGBT module of Infineon is used for the price of hybrid vehicle 20KW level just more than 2,000 yuans), the efficient stable of electric vehicle controller is run very important by the heat sink technology of research electric machine control device.
Summary of the invention
For above-mentioned technical problem, the present invention proposes the heat radiator dissipate heat testing method of a kind of electric vehicle motor controller, the method uses 3 d modeling software and finite element analysis instrument, use parametrization instrument to its heat sink model critical size parameter modeling the design of scatterer, fluid dynamics software ANSYS is then used to carry out emulating, by having tested test, verifying the exactness of emulation. Use parameter optimization instrument to be optimized by its heat spreader structures again, finally while reaching satisfied heat radiation, reduce the quality of scatterer, reach high efficiency and heat radiation and light-weighted requirement.
The technical scheme of the present invention is:
A heat radiator dissipate heat testing method for electric vehicle motor controller, comprises the following steps:
Electric machine control device scatterer system is carried out three-dimensional design, scatterer system is carried out 3 D Parametric Modeling;
Using finite element soft Ansys Icepak that scatterer system is carried out finite element simulation, adopt Thermal test instrument to build Thermal test system, emulation is verified by service test;
Under the prerequisite of testing authentication emulation, the optimization module of ANSYS software is used the parameter of scatterer system to be optimized.
Preferably, described scatterer system model comprises IGBT module, diode, aluminium sesquioxide, heat-conducting glue, copper CU, scolding tin, HEATSINK scatterer, fan, and scatterer system model is carried out mechanical workout.
Preferably, under the prerequisite ensureing simulation accuracy, the chamfering in model, hole, Jian Jiao are simplified.
Preferably, described parameter comprises dimensional parameters and location parameter, comprises the thickness of the fin of scatterer HEATSINK, length, spacing, fan to the rotating speed of the Distance geometry fan of scatterer.
Preferably, described step S03 is included in ANSYS software and sets design variable scope and design objective range of function, be then optimized, until parameter when design variable meets design objective function is optimized parameter.
It is an advantage of the invention that:
Simulation drive is innovated, the function algorithm powerful by finite element software and the development of computer hardware technology, emulation technology is used to carry out the research and development of product, shorten product development cycle, reduce the manpower and financial resources needed for product development to drop into, enhance the reliability and stability of product, accelerate the efficiency of research and development of enterprise, promote the value of enterprise's product greatly.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the schema of the heat radiator dissipate heat testing method of electric vehicle motor controller of the present invention;
The utilization Simulation drive that Fig. 2 is the heat radiator dissipate heat testing method of electric vehicle motor controller of the present invention optimizes schema.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and with reference to accompanying drawing, the present invention is described in more detail.It is to be understood that these describe just exemplary, and do not really want to limit the scope of the invention. In addition, in the following description, the description to known features and technology is eliminated, to avoid the concept unnecessarily obscuring the present invention.
Embodiment:
Below in conjunction with accompanying drawing, the better embodiment of the present invention is described further.
As shown in Figure 1, the heat radiator dissipate heat testing method of this electric vehicle motor controller comprises the following steps:
The first step, electric machine control device scatterer system is carried out three-dimensional design by fansink designs flow process traditionally, and scatterer system is carried out 3 D Parametric Modeling.
2nd step, uses finite element soft Ansys Icepak that scatterer system is carried out finite element simulation, adopts Thermal test instrument to build Thermal test system, and emulation is verified by service test.
3rd step, under the prerequisite of testing authentication emulation, uses the optimization module of ANSYS software the structure of scatterer system to be optimized.
Scatterer system comprises IGBT module, diode DIOED, aluminium sesquioxide DBC(pottery), heat-conducting glue GREASE, copper CU, scolding tin, scatterer HEATSINK, fan etc., and scatterer system has been carried out mechanical workout.
Based on the complexity of number of grid and model, in order to improve the cost performance of emulation, under the prerequisite ensureing simulation accuracy, model is existed a large amount of chamferings, hole, Jian Jiao carried out suitable simplification, remove some fillet, chamfering, deletion pilot hole etc.
AnsysIcepak software is used for electronic heat-pipe reason steadily and surely powerful computational fluid dynamics (CFD) copying of offer and to have powerful fan and material database, according to the fan data handbook (Datasheet) testing use in reality, model, the selected fan of design can be carried out finite element simulation.
Using measuring technology that the point bigger in thermograde is arranged thermocouple sensor, system is tested by the final condition then arranged according to emulation by test. At verification experimental verification after the reliability of emulation, the optimization module of ANSYS is used the thickness of the fin FIN of scatterer HEATSINK, fin FIN length, the spacing of fin FIN, fan to be optimized to the rotating speed etc. of the Distance geometry fan of scatterer, acquirement optimized parameter.
Using Simulation drive optimization design, optimization step is as shown in Figure 2.
The first step, uses 3 d modeling software, based on software Parameter Function Unit, the size of model is carried out parametric modeling.
2nd step, uses finite element analysis software that the three-dimensional model with parameter is carried out finite element simulation.
3rd step, the result obtained by realistic model is analyzed, and sets design variable scope and design objective range of function in software.
4th step, uses optimization algorithm to be optimized by model, until design variable meets design objective function.
This method of design can for dissimilar and electric vehicle motor controller scatterer product design that is model, just can realize the optimization design of different electric machine control device scatterer based on the dimensional parameters of parameterized model or location parameter only by amendment, under the prerequisite ensureing heat radiation, reduce the quality of scatterer as much as possible, reach raising heat dissipation, light-weighted object.
Should be understood that, the above-mentioned embodiment of the present invention is only for exemplary illustration or the principle explaining the present invention, and is not construed as limiting the invention. Therefore, any amendment of making when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention are intended to contain in the equivalents falling into scope and border or this kind of scope and border whole change and modification.
Claims (5)
1. the heat radiator dissipate heat testing method of an electric vehicle motor controller, it is characterised in that, comprise the following steps:
S01: electric machine control device scatterer system is carried out three-dimensional design, scatterer system is carried out 3 D Parametric Modeling;
S02: use finite element soft Ansys Icepak that scatterer system is carried out finite element simulation, adopts Thermal test instrument to build Thermal test system, and emulation is verified by service test;
S03: under the prerequisite of testing authentication emulation, uses the optimization module of ANSYS software the parameter of scatterer system to be optimized, obtains optimized parameter.
2. the heat radiator dissipate heat testing method of electric vehicle motor controller according to claim 1, it is characterized in that, described scatterer system model comprises IGBT module, diode, aluminium sesquioxide, heat-conducting glue, copper CU, scolding tin, HEATSINK scatterer, fan, and scatterer system model is carried out mechanical workout.
3. the heat radiator dissipate heat testing method of electric vehicle motor controller according to claim 1, it is characterised in that, under the prerequisite ensureing simulation accuracy, the chamfering in model, hole, Jian Jiao are simplified.
4. the heat radiator dissipate heat testing method of electric vehicle motor controller according to claim 1, it is characterized in that, described parameter comprises dimensional parameters and location parameter, comprises the thickness of the fin of scatterer HEATSINK, length, spacing, fan to the rotating speed of the Distance geometry fan of scatterer.
5. the heat radiator dissipate heat testing method of electric vehicle motor controller according to claim 1, it is characterized in that, described step S03 is included in ANSYS software to set design variable scope and design objective range of function, then it is optimized, until parameter when design variable meets design objective function is optimized parameter.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958116A (en) * | 2017-11-27 | 2018-04-24 | 嘉兴学院 | A kind of elevator door-motor driver optimizing thermal solution method based on particle cluster algorithm |
| CN109635517A (en) * | 2019-01-23 | 2019-04-16 | 北斗航天汽车（北京）有限公司 | A kind of simulative optimization design method, computer readable storage medium and the computer equipment of the electric machine controller radiator structure based on CFD |
| CN109765069A (en) * | 2019-01-28 | 2019-05-17 | 晶晨半导体（深圳）有限公司 | Radiator test method and system |
| CN112149326A (en) * | 2020-08-31 | 2020-12-29 | 青岛海尔空调器有限总公司 | Optimized design method and device for evaporator fins of indoor unit of air conditioner |
| CN112788929A (en) * | 2021-02-04 | 2021-05-11 | 德鲁动力科技(成都)有限公司 | Electric control box heat dissipation design method of four-legged robot |
| CN113761758A (en) * | 2021-11-09 | 2021-12-07 | 飞腾信息技术有限公司 | Heat dissipation performance optimization method for water-cooled head radiator, radiator and server |
| CN113792460A (en) * | 2021-09-10 | 2021-12-14 | 中国第一汽车股份有限公司 | Three-dimensional thermal simulation method of new energy electric drive system |
| CN114383864A (en) * | 2021-12-08 | 2022-04-22 | 北京罗克维尔斯科技有限公司 | Fault detection method, device, equipment and medium |
| CN115308594A (en) * | 2022-08-08 | 2022-11-08 | 南昌三瑞智能科技有限公司 | Experimental device and test method for rapidly verifying performance of heat dissipation structure in motor |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958116A (en) * | 2017-11-27 | 2018-04-24 | 嘉兴学院 | A kind of elevator door-motor driver optimizing thermal solution method based on particle cluster algorithm |
| CN109635517A (en) * | 2019-01-23 | 2019-04-16 | 北斗航天汽车（北京）有限公司 | A kind of simulative optimization design method, computer readable storage medium and the computer equipment of the electric machine controller radiator structure based on CFD |
| CN109635517B (en) * | 2019-01-23 | 2023-12-01 | 北斗航天汽车（北京）有限公司 | CFD-based simulation optimization design method for heat dissipation structure of motor controller, computer-readable storage medium and computer equipment |
| CN109765069A (en) * | 2019-01-28 | 2019-05-17 | 晶晨半导体（深圳）有限公司 | Radiator test method and system |
| CN109765069B (en) * | 2019-01-28 | 2021-09-07 | 晶晨半导体（深圳）有限公司 | Radiator test method and system |
| CN112149326B (en) * | 2020-08-31 | 2023-01-13 | 青岛海尔空调器有限总公司 | Optimized design method and device for evaporator fins of indoor unit of air conditioner |
| CN112149326A (en) * | 2020-08-31 | 2020-12-29 | 青岛海尔空调器有限总公司 | Optimized design method and device for evaporator fins of indoor unit of air conditioner |
| CN112788929A (en) * | 2021-02-04 | 2021-05-11 | 德鲁动力科技(成都)有限公司 | Electric control box heat dissipation design method of four-legged robot |
| CN113792460A (en) * | 2021-09-10 | 2021-12-14 | 中国第一汽车股份有限公司 | Three-dimensional thermal simulation method of new energy electric drive system |
| CN113792460B (en) * | 2021-09-10 | 2024-05-03 | 中国第一汽车股份有限公司 | Three-dimensional thermal simulation method of new energy electric drive system |
| CN113761758A (en) * | 2021-11-09 | 2021-12-07 | 飞腾信息技术有限公司 | Heat dissipation performance optimization method for water-cooled head radiator, radiator and server |
| CN113761758B (en) * | 2021-11-09 | 2022-03-04 | 飞腾信息技术有限公司 | Heat dissipation performance optimization method for water-cooled head radiator, radiator and server |
| CN114383864A (en) * | 2021-12-08 | 2022-04-22 | 北京罗克维尔斯科技有限公司 | Fault detection method, device, equipment and medium |
| CN115308594A (en) * | 2022-08-08 | 2022-11-08 | 南昌三瑞智能科技有限公司 | Experimental device and test method for rapidly verifying performance of heat dissipation structure in motor |
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Application publication date: 20160615 |