CN201872568U - Cooling device for power assembly of electric vehicle - Google Patents

Cooling device for power assembly of electric vehicle Download PDF

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Publication number
CN201872568U
CN201872568U CN2010205404901U CN201020540490U CN201872568U CN 201872568 U CN201872568 U CN 201872568U CN 2010205404901 U CN2010205404901 U CN 2010205404901U CN 201020540490 U CN201020540490 U CN 201020540490U CN 201872568 U CN201872568 U CN 201872568U
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China
Prior art keywords
cooling
motor
power assembly
media
radiator
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Expired - Lifetime
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CN2010205404901U
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Chinese (zh)
Inventor
王鹏
黄龙辉
张吉强
郭建民
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IAT Automobile Technology Co Ltd
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IAT (CHINA) AUTO TECHNOLOGY Co Ltd
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    • 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

Abstract

The utility model provides a cooling device for a power assembly of an electric vehicle, which comprises an electric pump (10), a radiator (20) and a cooling controller (30), wherein the electric pump (10) and the radiator (20) are communicated with a motor (82) of the power assembly (80) and a motor driving device (84) through cooling pipelines (52, 54 and 56); circulating cooling media are filled in the cooling pipelines (52, 54 and 56); the cooling controller (30) can detect the temperature of the cooling media in the cooling pipelines (52, 54 and 56), the motor driving device (82) and the motor (84); and the cooling controller (30) can control the cooling media to circulate in the cooling pipelines (52, 54 and 56) through the electric pump (10). The cooling device for the power assembly of the electric vehicle effectively reduces the working temperature of the power assembly, improves the working efficiency of the motor, and prolongs the service life of the motor and a motor controller.

Description

The cooling mechanism of power assembly of electric automobile
Technical field
The utility model relates to the cooling mechanism of automobile power assembly, relates in particular to the cooling mechanism of the dynamic assembly of electronlmobil or hybrid vehicle.
Background technology
The various loss major parts that produce when the motor of electronlmobil and hybrid power automobile power assembly and motor driver operation convert heat to, make each parts of motor and motor driver generate heat, temperature build-up, and motor and motor driver system are to the requirement of existence harshness on the operating temperature, must take effective measures the operating temperature that reduces motor and motor driver, otherwise can the performance of motor and motor driver be made a big impact, especially for the work efficiency of motor and motor driver and the threat maximum that causes service life.
Present electronlmobil and hybrid vehicle adopt natural ventilation system or induced ventilation mode to cool off mostly, these method cooling poweies are limited, can not satisfy the cooling needs of dynamic assembly, and the induced ventilation mode cools off and need expend a large amount of electric energy, be not suitable on electronlmobil, using.
Summary of the invention
The purpose of this utility model provides a kind of cooling mechanism that is used for power assembly of electric automobile, to reduce the temperature of dynamic assembly motor and motor driver effectively.
Another purpose of the present utility model provides a kind of cooling mechanism that is used for power assembly of electric automobile, when effectively reducing dynamic assembly motor and motor-driven actuator temperature, consumes less electric energy.
The utility model provides a kind of cooling mechanism of power assembly of electric automobile, comprise: motor-drive pump, radiator and cooling controller, motor-drive pump and radiator are communicated with the motor of dynamic assembly and the motor driver of dynamic assembly by cooling duct, be equipped with in the cooling duct can be in cooling duct the on-cycle cooling media; Cooling controller can detect the temperature of cooling media in the cooling duct, motor driver and motor, and cooling controller can be controlled the circulation of cooling media in cooling duct by motor-drive pump.
In another schematic embodiment of the cooling mechanism of power assembly of electric automobile, radiator also is provided with low speed fan and high speed fan, the switch of cooling controller may command low speed fan and high speed fan.
In the another kind of schematically embodiment of the cooling mechanism of power assembly of electric automobile, radiator also is provided with fluid reservoir, and fluid reservoir can be stored cooling media.
In another schematic embodiment of the cooling mechanism of power assembly of electric automobile, cooling media is an aqueous water.
In another schematic embodiment of the cooling mechanism of power assembly of electric automobile, in the cooling media circulation loop, the cooling media that radiator flows out through motor driver, passes through motor earlier again.
Use the cooling mechanism of power assembly of electric automobile, reduced the operating temperature of dynamic assembly motor and motor driver effectively, thereby improved the work efficiency of motor, prolonged the service life of motor and electric machine controller, improved the reliability of dynamic assembly.
Use the cooling mechanism of power assembly of electric automobile, structure design and work control by cooling mechanism can effectively reduce the electric energy that cooling mechanism consumes.
Description of drawings
The following drawings is only done the utility model and is schematically illustrated and explain, does not limit scope of the present utility model, wherein:
Fig. 1 is the structural representation of a kind of exemplary embodiment of cooling mechanism of power assembly of electric automobile;
Fig. 2 is the structural representation of the another kind of exemplary embodiment of cooling mechanism of power assembly of electric automobile;
Fig. 3 is a kind of schematic flow sheet of control principle of the cooling mechanism of power assembly of electric automobile.
The specific embodiment
Understand for technical characterictic, purpose and effect to utility model have more clearly, now contrast the description of drawings specific embodiment of the present utility model, identical label is represented identical part in each figure.
Fig. 1 is the structural representation of a kind of exemplary embodiment of cooling mechanism of power assembly of electric automobile.As shown in the figure, the cooling mechanism of power assembly of electric automobile comprises motor-drive pump 10, radiator 20 and cooling controller 30.Motor-drive pump 10 and radiator 20 is communicated with the motor 84 of dynamic assembly 80 and the motor driver 82 of dynamic assembly 80 by cooling duct 52,54,56, cooling duct 52,54, and being equipped with in 56 can be at cooling duct 52,54, on-cycle cooling media in 56.Cooling controller 30 can detect cooling duct 52,54, the temperature of cooling media, motor driver 82 and motor 84 in 56, and cooling controller 30 can be by motor-drive pump 10 control cooling medias at cooling duct 52,54, the circulation in 56.
Fig. 2 is the structural representation of the another kind of exemplary embodiment of cooling mechanism of power assembly of electric automobile.Radiator 20 also is provided with high speed fan and low speed fan (not shown), by detecting cooling duct 52,54, the temperature of cooling media, motor driver 82 and motor 84 in 56, cooling controller 30 can be exported two path control signal respectively, one the tunnel is used for the switch control of low speed fan, another road is used for the switch control of high speed fan, thereby according to cooling duct 52, the temperature of cooling media, motor driver 82 and motor 84 realizes switching and the switch between high speed fan and the low speed fan in 54,56.
In the embodiment as shown in Figure 2, radiator 20 also is provided with fluid reservoir 40, and fluid reservoir can be stored cooling media.In a kind of exemplary embodiment of the cooling mechanism of power assembly of electric automobile, cooling media is a cooling water expansion tank, but it will be understood by those skilled in the art that selecting for use of cooling media, can be according to temperature environment, economic capabilities etc. are selected the better cooling media of other cooling performances for use.
In embodiment shown in Figure 2, in the cooling media circulation loop, the cooling media that radiator 20 flows out passes through motor 84 more earlier through motor driver 82.It will be appreciated by those skilled in the art that, the coolant temperature that radiator 20 flows out is lower, preferentially be owing to used for example device extremely harsh such as semiconductor devices and chemical capacitor in the actuator 82, thereby make actuator 82 preferentially cool off the temperature upper limit requirement by motor driver 82.
In a kind of exemplary embodiment of the cooling mechanism of power assembly of electric automobile, cooling controller 30 is entire car controller (VCU), motor driver 82 and motor 84 send in the entire car controller by the CAN bus, and cooling duct 52, the temperature of cooling media can directly be gathered by entire car controller in 54,56.For the energy consumption of the cooling mechanism that reduces power assembly of electric automobile, this device divides for the level Four mode of operation, is respectively:
Radiating mode one: motor-drive pump and low speed fan high speed fan are not worked;
Radiating mode two: motor-drive pump work, low speed fan high speed fan is not worked;
Radiating mode three: motor-drive pump work, the low speed fan work, high speed fan is not worked;
Radiating mode four: motor-drive pump work, high speed fan work,
More than switching between four kinds of patterns be that temperature with cooling media in motor driver 82, motor 84 and the cooling duct 52,54,56 is a criterion.
Fig. 3 is a kind of schematic flow sheet of control principle of the cooling mechanism of power assembly of electric automobile.As shown in the figure, cooling mechanism for power assembly of electric automobile is controlled the system initialization that starts from step S60, enter step S62 then, judge whether to satisfy radiating mode four temperature conditions, if judged result is "Yes" then enters step S70, process ends is also carried out the mode of operation of radiating mode four, if judged result is "No" then enters step S64.
In step S64, judge whether to satisfy radiating mode three temperature conditions, if judged result is "Yes" then enters step S70 that process ends is also carried out the mode of operation of radiating mode three, if judged result is "No" then enters step S66.
In step S66, judge whether to satisfy radiating mode two temperature conditions, if judged result is "Yes" then enters step S70 that process ends is also carried out the mode of operation of radiating mode two, if judged result is "No" then enters step S68.
Step S68 is a radiating mode one, enters step S70 behind the execution in step S68, and process ends is also carried out the mode of operation of radiating mode one.
It will be understood by those skilled in the art that and respectively to the fan speed and the regulation and control of motor-drive pump rate of circulation of each pattern, further to reduce the energy consumption of cooling mechanism according to the temperature of cooling media in motor driver 80, motor 90 and the cooling duct 52,54,56.
Use the cooling mechanism of power assembly of electric automobile, reduced the operating temperature of dynamic assembly motor and motor driver effectively, thereby improved the work efficiency of motor, prolonged the service life of motor and electric machine controller, improved the reliability of dynamic assembly.
Use the cooling mechanism of power assembly of electric automobile, structure design and work control by cooling mechanism can effectively reduce the electric energy that cooling mechanism consumes.
Be to be understood that, though this specification sheets is described according to each embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets only is for clarity sake, those skilled in the art should make specification sheets as a whole, technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the present utility model.

Claims (5)

1. the cooling mechanism of power assembly of electric automobile, comprise: motor-drive pump (10), radiator (20) and cooling controller (30), it is characterized in that: described motor-drive pump (10) and described radiator (20) are by cooling duct (52,54,56) be communicated with described cooling duct (52 with the motor (82) and the motor driver (84) of described dynamic assembly (80), 54,56) has the on-cycle cooling media in; Described cooling controller (30) can detect described cooling duct (52,54, the temperature of cooling media 56), described motor driver (82) and described motor (84), described cooling controller (30) can be by the described cooling media of described motor-drive pump (10) control at described cooling duct (52,54,56) circulation in.
2. cooling mechanism as claimed in claim 1, wherein said radiator (20) also is provided with low speed fan and high speed fan, the switch of described low speed fan of described cooling controller (30) may command and described high speed fan.
3. cooling mechanism as claimed in claim 1, wherein said radiator (20) also is provided with fluid reservoir (40), and described fluid reservoir (40) can be stored described cooling media.
4. cooling mechanism as claimed in claim 1, wherein said cooling media are aqueous water.
5. cooling mechanism as claimed in claim 1, in the wherein said cooling media circulation loop, the described cooling media that described radiator (20) flows out passes through described motor (84) more earlier through described motor driver (82).
CN2010205404901U 2010-09-25 2010-09-25 Cooling device for power assembly of electric vehicle Expired - Lifetime CN201872568U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102523724A (en) * 2011-12-06 2012-06-27 常州市龙豪车辆配件厂 Electric vehicle controller
CN102951012A (en) * 2011-08-30 2013-03-06 上海汽车集团股份有限公司 Heat management system for hybrid power vehicle and control method thereof
CN105252992A (en) * 2015-11-20 2016-01-20 南车株洲电力机车研究所有限公司 Heating system in rubber-wheel low-floor intelligent rail train
CN104169616B (en) * 2012-03-16 2016-05-18 丰田自动车株式会社 Vehicle control system
CN106608179A (en) * 2017-01-14 2017-05-03 郑州比克新能源汽车有限公司 Cooling device of pure-electric logistics vehicle and control method of cooling device
CN110939503A (en) * 2018-09-21 2020-03-31 比亚迪股份有限公司 Cooling system, control method and vehicle
CN111585395A (en) * 2020-05-01 2020-08-25 东风汽车集团有限公司 Dual-motor oil cooling control system of electric automobile and control method thereof
CN112018957A (en) * 2019-05-31 2020-12-01 广州雷利诺车业有限公司 Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle
CN112644249A (en) * 2021-01-22 2021-04-13 厦门金龙联合汽车工业有限公司 Vehicle cooling system control method combining map, VCU (virtual vehicle Unit) instruction and air conditioner

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951012A (en) * 2011-08-30 2013-03-06 上海汽车集团股份有限公司 Heat management system for hybrid power vehicle and control method thereof
CN102951012B (en) * 2011-08-30 2016-05-18 上海汽车集团股份有限公司 The heat management system of motor vehicle driven by mixed power and control method thereof
CN102523724A (en) * 2011-12-06 2012-06-27 常州市龙豪车辆配件厂 Electric vehicle controller
CN104169616B (en) * 2012-03-16 2016-05-18 丰田自动车株式会社 Vehicle control system
CN105252992A (en) * 2015-11-20 2016-01-20 南车株洲电力机车研究所有限公司 Heating system in rubber-wheel low-floor intelligent rail train
CN106608179A (en) * 2017-01-14 2017-05-03 郑州比克新能源汽车有限公司 Cooling device of pure-electric logistics vehicle and control method of cooling device
CN110939503A (en) * 2018-09-21 2020-03-31 比亚迪股份有限公司 Cooling system, control method and vehicle
CN110939503B (en) * 2018-09-21 2021-09-21 比亚迪股份有限公司 Cooling system, control method and vehicle
CN112018957A (en) * 2019-05-31 2020-12-01 广州雷利诺车业有限公司 Two-wheeled electric vehicle motor cooling system and two-wheeled electric vehicle
CN111585395A (en) * 2020-05-01 2020-08-25 东风汽车集团有限公司 Dual-motor oil cooling control system of electric automobile and control method thereof
CN111585395B (en) * 2020-05-01 2021-10-15 东风汽车集团有限公司 Control method of double-motor oil cooling control system of electric automobile
CN112644249A (en) * 2021-01-22 2021-04-13 厦门金龙联合汽车工业有限公司 Vehicle cooling system control method combining map, VCU (virtual vehicle Unit) instruction and air conditioner
CN112644249B (en) * 2021-01-22 2022-07-19 厦门金龙联合汽车工业有限公司 Vehicle cooling system control method combining map, VCU (virtual vehicle Unit) instruction and air conditioner

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EE01 Entry into force of recordation of patent licensing contract

Assignee: Tianjin IAT Automobile Technology Co., Ltd.

Assignor: IAT (China) Auto Technology Co., Ltd.

Contract record no.: 2011990000818

Denomination of utility model: Cooling device for power assembly of electric vehicle

Granted publication date: 20110622

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