CN204687856U - A kind of highly reliable electronlmobil electric system without low tension battery - Google Patents
A kind of highly reliable electronlmobil electric system without low tension battery Download PDFInfo
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- CN204687856U CN204687856U CN201520438078.1U CN201520438078U CN204687856U CN 204687856 U CN204687856 U CN 204687856U CN 201520438078 U CN201520438078 U CN 201520438078U CN 204687856 U CN204687856 U CN 204687856U
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model proposes a kind of highly reliable electronlmobil electric system without low tension battery, what power for vehicle-mounted low voltage equipment is DC/DC conv; For some important low-voltage electrical apparatus power for normal electric system, powered by two DC/DC convs; One of them is miniwatt DC/DC conv, and another is high power D C/DC conv; High power D C/DC converter output end series diode is that normal electric system is powered; Other low-voltage electrical apparatuses are powered by high power D C/DC conv.
Description
Technical field
The present invention relates to the electric system of electronlmobil.
Background technology
Development of Electric Vehicles is swift and violent in recent years, and various electronlmobil is constantly weeded out the old and bring forth the new.But most of electronlmobil has still continued to use the low-voltage electric system of orthodox car, carry a low pressure lead-acid storage battery.And some eliminate safety and integrity problem that low pressure lead-acid storage battery electronlmobil do not consider to bring.
Summary of the invention
1) technical matters solved
Cancel the low tension battery on electronlmobil, ensure economy and reliability simultaneously.
2) technical scheme
The present invention proposes a kind of highly reliable electronlmobil electric system without low tension battery, what power for vehicle-mounted low voltage equipment is DC/DC conv; For some important low-voltage electrical apparatus power for normal electric system, powered by two DC/DC convs; One of them is miniwatt DC/DC conv, and another is high power D C/DC conv; High power D C/DC converter output end series diode is that normal electric system is powered; Other low-voltage electrical apparatuses are powered by high power D C/DC conv.
The low-voltage equipment of the vehicle-mounted low-voltage equipment and needs power supply for a long time that relate to vehicle body safety like this all accesses normal electric system, and normal electric system is preferentially powered by high power D C/DC conv when driving a vehicle, when high power D C/DC conv breaks down, powered by miniwatt DC/DC conv, guarantee normal electric system reliable power supply like this.Solve the problem not having normal electricity after cancelling storage battery simultaneously.With the DC/DC conv of small one and large one two kinds of power, be conducive to reducing costs, and normal electric system is powered by miniwatt DC/DC conv and also can be ensured higher conversion efficiency.
Battery charger has low-voltage output mouth, for normal electric system is powered.BMS is powered by normal electric system.Battery is through main contactor supplying power for outside, and main contactor is by BMS(battery management system) control; Battery is powered to miniwatt DC/DC conv through relay, and relay is controlled by BMS.Main storage battery, main contactor, BMS, miniwatt DC/DC conv and control its power supply relay be integrated in battery box.Main storage battery is connected to a normal open switch to the input of miniwatt DC/DC conv.
Under initial state, BMS, miniwatt DC/DC conv, relay all do not work, and when battery charger receives electrical network, the low-voltage output mouth of battery charger is that normal electric system is powered.Now BMS work, during without major failure, attracting electric relay, the low-voltage output mouth of the work of miniwatt DC/DC conv and battery charger is powered for normal electric system jointly.When battery charger departs from electrical network, normal electric system is powered by miniwatt DC/DC conv separately.After this according to the failure condition of vehicle-state and battery, determine whether miniwatt DC/DC conv closes by BMS.After closedown, then must rely on battery charger and could recover normal electric system and power.In normal driving conditions, noncritical failure miniwatt DC/DC conv works all the time and guarantees the power supply of normal electric system.This set of system is integrated in battery box, is convenient to realize modularization.When charging, press the normal open switch that main storage battery inputs to miniwatt DC/DC conv, miniwatt DC/DC conv is started working, normal electric system powers on, BMS works, battery, without attracting electric relay when major failure, now unclamps the power supply that normal open switch does not affect miniwatt DC/DC conv yet, achieves the emergency starting of system.
3) beneficial effect
Eliminate low tension battery in the present invention, reduce cost, the maintenance also without low tension battery more changes jobs.Adopt the DC/DC conv of small one and large one two kinds of power, be conducive to improving reliability, control cost, ensure higher conversion efficiency.
Accompanying drawing explanation
Fig. 1 is electric system schematic diagram of the present invention, in figure: BMS is battery management system.
Detailed description of the invention
The present invention proposes a kind of highly reliable electronlmobil electric system without low tension battery, what power for vehicle-mounted low voltage equipment is DC/DC conv; For some important low-voltage electrical apparatus power for normal electric system, powered by two DC/DC convs; One of them is miniwatt DC/DC conv, and another is high power D C/DC conv; High power D C/DC converter output end series diode is that normal electric system is powered; Other low-voltage electrical apparatuses are powered by high power D C/DC conv.Battery charger has low-voltage output mouth, for normal electric system is powered.BMS is powered by normal electric system.Battery is through main contactor supplying power for outside, and main contactor is by BMS(battery management system) control; Battery is powered to miniwatt DC/DC conv through relay, and relay is controlled by BMS.Main storage battery, main contactor, BMS, miniwatt DC/DC conv and control its power supply relay be integrated in battery box.Main storage battery is connected to a normal open switch to the input of miniwatt DC/DC conv.
In concrete enforcement, the devices such as switch, relay, wire fuse can be increased in each input/output port as required.
Claims (7)
1. a highly reliable electronlmobil electric system without low tension battery, is characterized in that, what power for vehicle-mounted low voltage equipment is DC/DC conv; For some important low-voltage electrical apparatus power for normal electric system, powered by two DC/DC convs; One of them is miniwatt DC/DC conv, and another is high power D C/DC conv; High power D C/DC converter output end series diode is that normal electric system is powered; Other low-voltage electrical apparatuses are powered by high power D C/DC conv.
2. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, it is characterized in that, battery charger has low-voltage output mouth, for normal electric system is powered.
3. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, it is characterized in that, BMS is powered by normal electric system.
4. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, it is characterized in that, battery is through main contactor supplying power for outside, and main contactor is controlled by BMS.
5. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, it is characterized in that, battery is powered to miniwatt DC/DC conv through relay, and relay is controlled by BMS.
6. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, is characterized in that, main storage battery, main contactor, BMS, miniwatt DC/DC conv and control its power supply relay be integrated in battery box.
7. a kind of highly reliable electronlmobil electric system without low tension battery as claimed in claim 1, is characterized in that, main storage battery is connected to a normal open switch to the input of miniwatt DC/DC conv.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520438078.1U CN204687856U (en) | 2015-06-25 | 2015-06-25 | A kind of highly reliable electronlmobil electric system without low tension battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520438078.1U CN204687856U (en) | 2015-06-25 | 2015-06-25 | A kind of highly reliable electronlmobil electric system without low tension battery |
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| Publication Number | Publication Date |
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| CN204687856U true CN204687856U (en) | 2015-10-07 |
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| CN201520438078.1U Active CN204687856U (en) | 2015-06-25 | 2015-06-25 | A kind of highly reliable electronlmobil electric system without low tension battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994631A (en) * | 2017-11-30 | 2018-05-04 | 北京新能源汽车股份有限公司 | A kind of emergent electrification circuit, method and automobile |
| CN108162764A (en) * | 2017-11-27 | 2018-06-15 | 广东亿鼎新能源汽车有限公司 | A kind of pure electric automobile shares power-supply system |
| CN111301224A (en) * | 2020-03-31 | 2020-06-19 | 重庆长安新能源汽车科技有限公司 | Low-voltage power supply management system and management method for new energy automobile |
-
2015
- 2015-06-25 CN CN201520438078.1U patent/CN204687856U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162764A (en) * | 2017-11-27 | 2018-06-15 | 广东亿鼎新能源汽车有限公司 | A kind of pure electric automobile shares power-supply system |
| CN108162764B (en) * | 2017-11-27 | 2021-04-27 | 广东亿鼎新能源汽车有限公司 | Pure electric vehicles sharing electrical power generating system |
| CN107994631A (en) * | 2017-11-30 | 2018-05-04 | 北京新能源汽车股份有限公司 | A kind of emergent electrification circuit, method and automobile |
| CN111301224A (en) * | 2020-03-31 | 2020-06-19 | 重庆长安新能源汽车科技有限公司 | Low-voltage power supply management system and management method for new energy automobile |
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