CN206155189U - New forms of energy vehicle fill electrical safety protection system - Google Patents
New forms of energy vehicle fill electrical safety protection system Download PDFInfo
- Publication number
- CN206155189U CN206155189U CN201621230854.XU CN201621230854U CN206155189U CN 206155189 U CN206155189 U CN 206155189U CN 201621230854 U CN201621230854 U CN 201621230854U CN 206155189 U CN206155189 U CN 206155189U
- Authority
- CN
- China
- Prior art keywords
- battery
- tension battery
- circuit
- power
- low pressure
- 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.)
- Expired - Fee Related
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Classifications
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides a new forms of energy vehicle fill electrical safety protection system, its includes 24V's low pressure battery, power master switch, high voltage battery and the direct current socket that charges, power master switch electricity is connected between the positive pole of low pressure battery and finished vehicle circuit 's the power input end, do it have a DC to connect in parallel on the low pressure battery DC power module, high voltage battery with the direct current charges, and the socket is electric to be connected, low pressure battery, power master switch and a normally closed relay's input circuit is the series connection in proper order, normally closed relay's output circuit establishes ties the direct current charges in socket to the low pressure auxiliary circuit's between the high voltage battery the anodal return circuit, low -voltage battery 's positive pole passes through the power master switch with high voltage battery's BMS module electricity is connected, the low pressure battery is in do under the closed condition of power master switch high voltage battery's BMS module power supply.
Description
Technical field
This utility model is related to new energy vehicle safety applications technical field, particularly relates to a kind of charging of new energy vehicle
Security protection system.
Background technology
At this stage, to the charging safe practice of new energy vehicle be mainly designed to concentrate on infrastructure aspect, that is, fill
In electric stake or charging station.The method being usually taken is to install the intelligent auxiliary device of setting, such as mistake additional in charging pile or charging station
Stream protection device, earth leakage protective device, emergency stop switch etc., and then realize the whole charging flow of control new energy vehicle.And one
Occur exception in denier charging process, take the mode of cut-out power supply to realize preventing Vehicular charging safety using intelligent auxiliary device
Shield.Recharge here in safety protecting method, new energy vehicle becomes passive protection object, infrastructure are only security protection master
Dynamic to apply object, so once there are active objects not as in the case of, new energy vehicle is prevented due to lacking the safety of itself
Shield is easy to become the aggrieved party of charging security incident, and then causes life security incident.
Utility model content
This utility model provides a kind of charging security protection system of new energy vehicle, and its major technique to be solved is asked
Topic is：The charging safety protection technique of existing new energy vehicle is mainly concentrated in charging infrastructure, by base
In Infrastructure arrange Intelligent auxiliary equipment be new energy vehicle provide excessively stream, electric leakage etc. protect, once charging infrastructure
Break down in charging process and bring potential safety hazard, new energy vehicle has no protective capacities, can only passively receive what hidden danger was brought
Dangerous disastrous effect.
For the deficiencies in the prior art, this utility model provides a kind of charging security protection system of new energy vehicle, its
Low tension battery, battery main switch, high-tension battery and DC charging socket including 24V, the battery main switch electrical connection
Between the positive pole of the low tension battery and the power input of vehicle circuitry, on the low tension battery one is parallel with
DC-DC power module, the high-tension battery is electrically connected with the DC charging socket, the low tension battery, battery main switch
And the input circuit of a normally closed relay is sequentially connected in series, the output loop of the normally closed relay is connected on described straight
In the positive pole loop of current charge socket to the low pressure auxiliary circuit between high-tension battery, the positive pole of the low tension battery is by described
Battery main switch is electrically connected with the BMS modules of the high-tension battery, and the low tension battery is closed in the battery main switch
In the case of be the high-tension battery BMS module for power supply.
It is preferable over：The power output end of the high-tension battery is electrically connected to the input of the DC-DC power module, described
High-tension battery to the DC-DC power module is powered.
It is preferable over：One is also connected in parallel in low pressure auxiliary circuit between the high-tension battery and DC charging socket
The input circuit of normally opened relay, the positive pole of the low tension battery is also electrically connected with one positioned at the front end of the battery main switch
Wake-up circuit, the wake-up circuit include the output loop of the normally opened relay being sequentially connected in series by current trend and
One diode, the outfan of the wake-up circuit is electrically connected to the wake-up circuit of the DC-DC power module.
It is preferable over：Also include high-tension battery radiating module and carload instrument system, the wake-up in the vehicle circuitry
The outfan of circuit is also respectively electrically connected to the wake-up circuit of high-tension battery radiating module and carload instrument system, the DC-
DC power module is simultaneously the low tension battery, high-tension battery radiating module and carload instrument system power supply.
Compared with prior art, the beneficial effects of the utility model are：Only when the battery main switch is in disconnection feelings
Under condition, the input circuit of the normally closed relay disconnects, and the DC charging socket is to the low pressure auxiliary electricity between high-tension battery
The output loop closure of the normally closed relay in the positive pole loop on road, the DC charging socket is between high-tension battery
Low pressure auxiliary circuit is turned on, and the high-tension electricity that the DC charging socket is accessed just can be controlled in the BMS modules of the high-tension battery
Lower upper electricity, it is ensured that battery main switch is always off during charging, the low tension battery and high-tension battery with it is whole
The power supply of car circuit disconnects, car load electric system power-off, it is ensured that vehicle is activated, starts and height when vehicle does not charge
Piezoelectricity string electricity etc. brings safety problem, and then new energy vehicle to be changed into into actively apply safety anti-by passively receiving security protection
Shield, protection is charged to car load, strengthens car load security control dynamics, can greatly improve the charging security energy of car load.
Description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Specific embodiment
Below with reference to accompanying drawing 1 and preferred embodiment pair the utility model proposes a kind of new energy vehicle charging peace
Full protection system is described in greater detail.
This utility model provides a kind of charging security protection system of new energy vehicle, and it includes the low tension battery of 24V
1st, battery main switch 2, high-tension battery 3 and DC charging socket 4, the battery main switch 2 is connected electrically in the low pressure electric power storage
Between the positive pole in pond 1 and the power input of vehicle circuitry, a DC-DC power module is parallel with the low tension battery 1
5, the high-tension battery 3 is electrically connected with the DC charging socket 4, the low tension battery 1, battery main switch 2 and one
The input circuit of normally closed relay 6 is sequentially connected in series, and the output loop of the normally closed relay 6 is connected on the DC charging
In the positive pole loop of socket 4 to the low pressure auxiliary circuit between high-tension battery 3, the positive pole of the low tension battery 1 passes through the electricity
Source main switch 2 is electrically connected with the BMS modules (battery management system) of the high-tension battery 3, and the low tension battery 1 is in the electricity
BMS modules in the case of the closure of source main switch 2 for the high-tension battery 3 provide working power.
Inventive point of the present utility model is：After 4 grafting external high pressure power supply of the DC charging socket, using described
Whether normally closed relay 6 " detection " battery main switch 2 disconnects, so as to control the high-tension electricity by the BMS modules
Electricity on pond 3, because input circuit and the low tension battery 1 of the normally closed relay 6, battery main switch 2 are connected, therefore works as
When the battery main switch 2 disconnects, the input circuit of the normally closed relay 6 is power-off, and the low tension battery 1 is also no longer
The BMS modules of the high-tension battery 3 provide working power, and the output loop for causing the normally closed relay 6 is closed, and make described straight
Current charge socket 4 to the low pressure auxiliary circuit between high-tension battery 3 is turned on, and the DC charging socket 4 is between high-tension battery 3
Low pressure auxiliary circuit provide working power for the BMS modules of the high-tension battery 3, the BMS modules can control the height
Piezoelectric battery 3 charges, and the low tension battery 1 and high-tension battery 3 disconnect with the power input of vehicle circuitry, effectively
Protect vehicle circuitry；Conversely, when the battery main switch 2 is closed, the DC charging socket 4 is between high-tension battery 3
Low pressure auxiliary circuit disconnect, then the BMS modules can prevent the high-tension battery 3 from charging, it is ensured that the charging safety of car load.
The power output end of the high-tension battery 3 is electrically connected to the input of the DC-DC power module 5, the high pressure
Battery 3 can power to the DC-DC power module 5, then by the DC-DC power module 5 by after the change of galvanic magnitude of voltage
Power to the low tension battery 1.
Also be connected in parallel in low pressure auxiliary circuit between the high-tension battery 3 and DC charging socket 4 one it is normally opened
The input circuit of relay 7, the positive pole of the low tension battery 1 is also electrically connected with one positioned at the front end of the battery main switch 2
Wake-up circuit 8, the wake-up circuit 8 includes the output loop of the normally opened relay 7 being sequentially connected in series by current trend
And a diode 9, the outfan of the wake-up circuit 8 is electrically connected to the wake-up circuit of the DC-DC power module 5,
In charging process, after the output loop conducting of the normally opened relay 7, the wake-up circuit 8 is then turned on, and then by the low pressure
Accumulator 1 by the output loop and diode 9 of wake-up circuit from the normally opened relay 7 to the DC-DC power module 5
There is provided and wake up power supply, the DC-DC power module 5 then receives the power supply of the high-tension battery 3 after being waken up, and changes unidirectional current
The backward low tension battery 1 of pressure is powered.
Also include high-tension battery radiating module and carload instrument system (due to high-tension battery radiating in the vehicle circuitry
The circuit structure of module and carload instrument system is conventional circuit structure, therefore particular circuit configurations are not shown), institute
The outfan for stating wake-up circuit 8 is also respectively electrically connected to the wake-up circuit of high-tension battery radiating module and carload instrument system,
It is also high-tension battery radiating module and carload instrument while the DC-DC power module 5 is powered for the low tension battery
System power supply, is radiated using the battery radiating module being waken up for high-tension battery 3, is shown using the carload instrument system
Charged state is pointed out, if driver is not turned off the battery main switch 2, charging cannot be carried out, the carload instrument system
Also prevention charge prompting can be made.
Described in synthesis, the technical solution of the utility model can complete above-mentioned utility model purpose with sufficiently effective, and
Structural principle of the present utility model and principle of work and power have all sufficiently been verified in embodiment, and can reach expected work(
Effect and purpose, and embodiment of the present utility model can also enter line translation according to these principles, therefore, this utility model includes one
Cut all replacement contents in the range of being previously mentioned in claim.Any institute in this utility model claim
The equivalence changes of work, all belong within the scope of the claims of this case application.
Claims (4)
1. the charging security protection system of a kind of new energy vehicle, low tension battery, battery main switch, high pressure that it includes 24V
Battery and DC charging socket, the battery main switch is connected electrically in the positive pole of the low tension battery and the electricity of vehicle circuitry
Between the input of source, it is characterised in that：A DC-DC power module, the high-tension battery are parallel with the low tension battery
Electrically connect with the DC charging socket, the input of the low tension battery, battery main switch and a normally closed relay is returned
Road is sequentially connected in series, and the output loop of the normally closed relay is connected on the DC charging socket between high-tension battery
In the positive pole loop of low pressure auxiliary circuit, the positive pole of the low tension battery is by the battery main switch and the high-tension battery
BMS modules are electrically connected, and the low tension battery is the BMS moulds of the high-tension battery in the case of battery main switch closure
Block is powered.
2. the charging security protection system of new energy vehicle according to claim 1, it is characterised in that：The high-tension battery
Power output end be electrically connected to the input of the DC-DC power module, the high-tension battery is to the DC-DC power module
Power supply.
3. the charging security protection system of new energy vehicle according to claim 2, it is characterised in that：The high-tension battery
The input circuit of a normally opened relay is also connected in parallel in low pressure auxiliary circuit between DC charging socket, it is described low
The positive pole of pressure accumulator is located at the front end of the battery main switch and is also electrically connected with a wake-up circuit, the wake-up circuit include by
The output loop of the normally opened relay that current trend is sequentially connected in series and a diode, the wake-up circuit it is defeated
Go out the wake-up circuit that end is electrically connected to the DC-DC power module.
4. the charging security protection system of new energy vehicle according to claim 3, it is characterised in that：The vehicle circuitry
In also include high-tension battery radiating module and carload instrument system, the outfan of the wake-up circuit is also electrically connected paramount
The wake-up circuit of piezoelectric battery radiating module and carload instrument system, the DC-DC power module is simultaneously the low pressure electric power storage
Pond, high-tension battery radiating module and carload instrument system power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230854.XU CN206155189U (en) | 2016-11-16 | 2016-11-16 | New forms of energy vehicle fill electrical safety protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230854.XU CN206155189U (en) | 2016-11-16 | 2016-11-16 | New forms of energy vehicle fill electrical safety protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206155189U true CN206155189U (en) | 2017-05-10 |
Family
ID=58659996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621230854.XU Expired - Fee Related CN206155189U (en) | 2016-11-16 | 2016-11-16 | New forms of energy vehicle fill electrical safety protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206155189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964162A (en) * | 2017-05-23 | 2018-12-07 | 郑州宇通客车股份有限公司 | A kind of battery management system wake-up system and a kind of DC/DC converter |
-
2016
- 2016-11-16 CN CN201621230854.XU patent/CN206155189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964162A (en) * | 2017-05-23 | 2018-12-07 | 郑州宇通客车股份有限公司 | A kind of battery management system wake-up system and a kind of DC/DC converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20191116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |