CN105667336A - Modularized intelligent high-voltage distribution box - Google Patents
Modularized intelligent high-voltage distribution box Download PDFInfo
- Publication number
- CN105667336A CN105667336A CN201610130689.9A CN201610130689A CN105667336A CN 105667336 A CN105667336 A CN 105667336A CN 201610130689 A CN201610130689 A CN 201610130689A CN 105667336 A CN105667336 A CN 105667336A
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- CN
- China
- Prior art keywords
- module
- voltage
- distribution box
- pressure
- control module
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- 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
Abstract
The invention discloses a modularized intelligent high-voltage distribution box which comprises a box body. High-voltage modules comprising 300A modules, 150A modules, 50A modules, 20A modules and pre-charging modules are arranged in the box body. A master control module used for low-voltage control is further arranged in the box body. Each high-voltage module is provided with a battery high-voltage acquisition circuit, a precision resistance voltage distribution manner is adopted, and high voltage and low voltage are converted through optocoupler isolation into high and low levels to be processed by the master control module. Busbar current is acquired through a Hall current sensor and processed through the master control module. The master control module communicates with an outer single-chip microcomputer through a CAN bus. The modularized intelligent high-voltage distribution box has the following beneficial effects that inner relays are controlled in a self-operated manner, and outer error operation is avoided; the state of each device can be monitored; a screw loosening problem can be monitored and fed back; the high-voltage distribution box is designed in an inflaming retarding manner; and all signals communicate through the CAN bus, and only power lines and CAN lines are needed as low-voltage wire harnesses.
Description
Technical field
The present invention relates to new-energy automobile field, specifically refer to a kind of modularization intelligent high-tension distribution box.
Background technology
Pure electric automobile is taking on-vehicle battery as power, and high-tension electricity need to be distributed to each consumer on car,High-tension distribution box is the important component part of pure electric automobile. There is following asking in current high-tension distribution boxTopic:
1, the relay of distribution box inside relies on outside ECU to control, and cannot ensure correct controlSystem.
2, cannot carry out Real-Time Monitoring to the state of the device such as relay and fuse. When device goes wrong,Need long period investigation fault.
3, inner high-low pressure wire harness is more, and irregular distribution, and inside is more in disorder, and cannot realize highLow pressure separates.
4, cannot monitor the connection status of copper bar, in the time there is bolt looseness, cannot and alarm.
5, high-voltaghe compartment on fire after, there is no fire-extinguishing function concurrently.
Summary of the invention
The object of the present invention is to provide a kind of modularization intelligent high-tension distribution box, by eachModularization is carried out on road, makes high-tension line clear, when device failure, only needs more commutationAnswer module, shorten the repair and maintenance time.
Technical scheme of the present invention is:
A kind of modularization intelligent high-tension distribution box, comprises casing, in casing, arrange comprise 300A module,150A module, 50A module, 20A module and preliminary filling module be at interior high-pressure modular, instituteState 300A module, 150A module, 50A module and 20A module and comprise relay, fusingDevice and battery high pressure Acquisition Circuit, preliminary filling module comprises relay and preliminary filling resistance; CasingInside also be provided with the main control module for low voltage control, each high-pressure modular connects electricity by busbarSource; 300A module is mainly used in motor, and 150A module is mainly used in filling soon, 50A moduleBe mainly used in trickle charge, 20A is mainly used in DC/DC, DC/AC, PTC and air-conditioning, preliminary fillingModule is mainly used in super-high-current relay protection; Each high-pressure modular is provided with battery high pressure and adoptsCollector, adopts precision resistance dividing potential drop mode, and converts height electricity to by light-coupled isolationPut down to main control module processing; Busbar current acquisition adopts Hall current sensor to gatherAnd to main control module processing; Main control module is communicated by letter with external microcontroller by CAN bus.
Described battery high pressure Acquisition Circuit is used series connection precision resistance, carries out electric resistance partial pressure,In high pressure composition, separate 5V voltage and carry out high-pressure section and low voltage section by linear optical couplingPoint isolation, then be transferred to Chip Microcomputer A/D input port through follower and filter circuit and carry outVoltage signal acquisition, real-time monitoring modular intelligent high-pressure distribution box input terminal voltage becomesChange, when the voltage signal gathering is lower than when setting value, single-chip microcomputer will be by CAN to batteryCommunication, makes battery management system carry out total relay or other related devicesControl.
Temperature sensor in circuit is thermistor, for preventing that loosened screw from causing the accident,Copper bar screw junction set temperature sensor in the circuit of distribution box of the present invention, works as temperatureWhen degree reaches the temperature value of setting, single-chip microcomputer will be reported to the police, and signal is passed to BMS (electricityPond management system), battery management system will disconnect main relay port, protection moduleIntelligent high-pressure distribution box.
Be more than various function singleness operation principles, in the time of normal entrucking, high pressure gathers electricityBattery input voltage and relay and the fusing of road acquisition module intelligent high-pressure distribution boxThe voltage condition at device two ends; Temperature sensor gathers the temperature conditions of each key point; HallCurrent sensor gathers the size of current on busbar; Main control module single-chip microcomputer is by above-mentioned letterNumber gather, process then by CAN line and modularization intelligent high-tension distribution box outsideSingle-chip microcomputer communicate, external microcontroller is carried out car load is electric according to control strategyControl.
Modularization intelligent high voltage power distributing cabinet of the present invention has the following advantages:
1, high voltage power distributing cabinet is controlled inner relay voluntarily, avoids external control unit pairHigh voltage power distributing cabinet carries out faulty operation.
2, can carry out status monitoring to each device.
3, can monitor loosened screw problem, and feedback.
4, high voltage power distributing cabinet is carried out to Principle And Method of Flame Retardation Design.
5, all signals all communicate by CAN bus, and as long as low voltage wiring harness is power lineWith CAN line.
Brief description of the drawings
Fig. 1 is modularization intelligent high-tension distribution box overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of 300A module in modularization intelligent high-tension distribution box of the present invention.
Fig. 3 is the structural representation of 150A module in modularization intelligent high-tension distribution box of the present invention.
Fig. 4 is the structural representation of 50A module in modularization intelligent high-tension distribution box of the present invention.
Fig. 5 is the structural representation of 20A module in modularization intelligent high-tension distribution box of the present invention.
Fig. 6 is the structural representation of preliminary filling module in modularization intelligent high-tension distribution box of the present invention.
Detailed description of the invention
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Embodiment:
As shown in Fig. 1-6, modularization intelligent high-tension distribution box of the present invention, comprises casing 7, in casingSetting comprises 300A module 1,150A module 2,50A module 3,20A module 4 and pre-Mold filling piece 5, at interior high-pressure modular, is also provided with the master control mould for low voltage control in casingPiece 6, each high-pressure modular connects power supply by busbar;
300A module is mainly used in motor, and 150A module is mainly used in filling soon, 50A moduleBe mainly used in trickle charge, 20A is mainly used in DC/DC, DC/AC, PTC and air-conditioning, preliminary fillingModule is mainly used in super-high-current relay protection;
300A module, 150A module, 50A module and 20A module comprise relay 101,201,301 and 401, fuse 102,202,302,402 and battery high pressure gather electricityRoad, by be incorporated to a string resistance between high pressure, carries out dividing potential drop by voltage, gathers 0～5VWith interior magnitude of voltage, each module voltage signal is twinkling signal, on resistance, can not bear and holdContinuous strong high pressure, by Single-chip Controlling, the actuating of relay, collects signal and just disconnects,For high low-voltage is isolated, use optocoupler TLP521-1 to carry out voltage isolation, andConvert the I/O mouth that switching value is input to single-chip microcomputer to, carry out level collection, close at relayClosing under state, if collect high level, is that relay or fuse damage, ifFor low level, circuit is normal.
Preliminary filling module comprises relay 501 and preliminary filling resistance 502, is mainly used in super-high-currentRelay protection. Owing to there being capacitive load, when equivalent capacity is connected in parallel on both ends of powerTime, power connection moment, the voltage at electric capacity two ends can not suddenly change, and electric capacity two endsElectric current can suddenly change, and rigidly connects energize moment, and capacitor two ends are equivalent to short circuit.
Loosened screw monitoring and measuring application principle is: connect copper bar loosened screw and make to produce between two copper barsRaw interval, the resistance being equivalent between two copper bars strengthens, according to P=I2R is known, between copper barHeating power increases a lot, and the heat producing in same time also increases very large, makes copperArranging temperature rise melts to the fusing point of copper bar. Thermistor is that a kind of resistance is along with temperatureThe sensor component of linear change, by this specific character of thermistor can obtain voltage andRelation between temperature. In the time that temperature reaches the temperature value of setting, single-chip microcomputer will be reported to the police,And signal is passed to BMS (battery management system), battery management system will be main relayPort disconnects, protection module intelligent high-pressure distribution box.
Compare with conventional high-tension power distribution cabinet, modularization intelligent high voltage power distributing cabinet has followingAdvantage and good effect:
1, conventional high-tension power distribution cabinet has been incorporated into external control unit control module, makes to passSystem high voltage power distributing cabinet must combine and could use with external control unit; And the present inventionControl, high-voltage signal collection, current signal collection etc. combines, and becomesFor independently overall. Modularization intelligent high voltage power distributing cabinet only need to be by CAN bus andEntire car controller communicates and can complete control, has avoided different suppliers to carry out itMistake control operation, burns device.
2, conventional high-tension power distribution cabinet can only be controlled relay, and modularization intelligent is highPress the power distribution cabinet can Real-Time Monitoring fuse, the real-time working state of relay. To operationThe problem (as bonding in relay, fuse burns) occurring in process is carried out Real-time Feedback.
3, owing to having oxygen in conventional high-tension power distribution cabinet, in the time there is naked light fault, meetingDevice in cabinet, wire harness burns, and modularization intelligent high voltage power distributing cabinet detects higher than 150After the high temperature or naked light of degree, the extinguishing device of high-voltage board inside can automatic gas jet,Reduce the oxygen content of high-voltage board inside, play the object of fire extinguishing, make relay occur drawingWhen arc, there will not be spark, cause fire.
In conventional high-tension cabinet, along with the increase of relay, low voltage wiring harness also can increase,Make wire harness complexity, and the present invention is by introducing intelligent object, makes wire harness length as much as possibleShorten, the quantity of line reduces as far as possible. Introduce CAN bus, what make to be connected with the external world is lowLine ball only has 5.
5, conventional high-tension power distribution cabinet high-voltage line, copper bar cabling confusion, is difficult for wiring, and notAttractive in appearance, the present invention is by each shunt (motor circuit, DC/DC, air conditioner loop, front and back defrostingEtc.) carry out modularized design, select disparate modules to enter for different application customer requirementRow design, inlet wire and outlet separately, avoid line to intersect.
More than show and described general principle of the present invention, principal character and advantage of the present invention. ThisThe technical staff of industry should understand, and the present invention is not restricted to the described embodiments, above-described embodiment andThat in description, describes just illustrates principle of the present invention, do not depart from spirit and scope of the invention beforePut the present invention and also have various changes and modifications, these changes and improvements all fall into claimed basisIn invention scope.
Claims (3)
1. modularization intelligent high-tension distribution box, is characterized in that, comprises casing, in casing, arranges and comprises300A module, 150A module, 50A module, 20A module and preliminary filling module be at interior high-pressure modular,Described 300A module, 150A module, 50A module and 20A module comprise relay, fuse and electricityPond high pressure Acquisition Circuit, preliminary filling module comprises relay and preliminary filling resistance; In casing, be also provided with for lowThe main control module of pressure-controlled, each high-pressure modular connects power supply by busbar; 300A module is mainly used in electricityMachine, 150A module is mainly used in filling soon, 50A module is mainly used in trickle charge, 20A be mainly used in DC/DC,DC/AC, PTC and air-conditioning, preliminary filling module is mainly used in super-high-current relay protection; Each high-pressure modularBe provided with battery high pressure Acquisition Circuit, adopt precision resistance dividing potential drop mode, and convert to by light-coupled isolationLow and high level is to main control module processing; Busbar current acquisition adopts Hall current sensor to gather alsoTo main control module processing; Main control module is communicated by letter with external microcontroller by CAN bus.
2. modularization intelligent high-tension distribution box according to claim 1, is characterized in that, described electricityPond high pressure Acquisition Circuit is used series connection precision resistance, carries out electric resistance partial pressure, in high pressure composition, separates 5VVoltage also carries out high-pressure section and low-pressure section isolation by linear optical coupling, then pass through follower and filteringCircuit transmission is carried out voltage signal acquisition to Chip Microcomputer A/D input port, real-time monitoring modular intelligenceHigh-tension distribution box input terminal voltage changes, and when the voltage signal gathering is lower than when setting value, single-chip microcomputer willTo battery management system communication, make battery management system to total relay or other correlators by CANPart is controlled.
3. modularization intelligent high-tension distribution box according to claim 1, is characterized in that, described in joinCopper bar screw junction set temperature sensor in the circuit of electronic box, when temperature reaches the temperature of settingWhen value, main control module single-chip microcomputer will be reported to the police, and signal is passed to battery management system, battery managementSystem will disconnect main relay port, protection module intelligent high-pressure distribution box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610130689.9A CN105667336B (en) | 2016-03-08 | 2016-03-08 | Modularization intelligent high-tension distribution box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610130689.9A CN105667336B (en) | 2016-03-08 | 2016-03-08 | Modularization intelligent high-tension distribution box |
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| CN105667336A true CN105667336A (en) | 2016-06-15 |
| CN105667336B CN105667336B (en) | 2017-11-24 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143189A (en) * | 2016-07-07 | 2016-11-23 | 金龙联合汽车工业（苏州）有限公司 | Batteries of electric automobile group high-voltaghe compartment |
| CN108550757A (en) * | 2018-06-28 | 2018-09-18 | 桑顿新能源科技有限公司 | Power battery cutting unit |
| CN108695692A (en) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | A kind of highly integrated anti-electromagnetic shielding high voltage distribution box |
| CN108711916A (en) * | 2018-06-27 | 2018-10-26 | 友邦电气（平湖）股份有限公司 | 90KW to 120KW charging piles direct current output module |
| CN109524929A (en) * | 2018-07-10 | 2019-03-26 | 顺科新能源技术股份有限公司 | A kind of die casting shell four-in-one high voltage distribution box |
| CN109669062A (en) * | 2017-10-17 | 2019-04-23 | 许继集团有限公司 | A kind of automatic detection elastic test macro of bolt |
| CN110588442A (en) * | 2019-08-16 | 2019-12-20 | 上海电气集团股份有限公司 | High-pressure tank of fuel cell system |
| CN113161958A (en) * | 2021-03-18 | 2021-07-23 | 国网浙江省电力有限公司温州供电公司 | Forceful electric power well low pressure enclosed bus trouble is salvageed and is equipped based on thing networking |
| CN113156209A (en) * | 2021-03-05 | 2021-07-23 | 淮安骏盛新能源科技有限公司 | Diagnosis method for monitoring looseness of mounting bolts of bus bar connected between modules |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143189A (en) * | 2016-07-07 | 2016-11-23 | 金龙联合汽车工业（苏州）有限公司 | Batteries of electric automobile group high-voltaghe compartment |
| CN109669062A (en) * | 2017-10-17 | 2019-04-23 | 许继集团有限公司 | A kind of automatic detection elastic test macro of bolt |
| CN108711916A (en) * | 2018-06-27 | 2018-10-26 | 友邦电气（平湖）股份有限公司 | 90KW to 120KW charging piles direct current output module |
| CN108550757A (en) * | 2018-06-28 | 2018-09-18 | 桑顿新能源科技有限公司 | Power battery cutting unit |
| CN108550757B (en) * | 2018-06-28 | 2023-10-24 | 余姚市海泰贸易有限公司 | Power battery cut-off unit |
| CN108695692A (en) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | A kind of highly integrated anti-electromagnetic shielding high voltage distribution box |
| CN108695692B (en) * | 2018-06-29 | 2024-03-19 | 余姚市海泰贸易有限公司 | Highly integrated anti-electromagnetic shielding high-voltage distribution box |
| CN109524929A (en) * | 2018-07-10 | 2019-03-26 | 顺科新能源技术股份有限公司 | A kind of die casting shell four-in-one high voltage distribution box |
| CN110588442A (en) * | 2019-08-16 | 2019-12-20 | 上海电气集团股份有限公司 | High-pressure tank of fuel cell system |
| CN110588442B (en) * | 2019-08-16 | 2024-04-12 | 上海电气集团股份有限公司 | High-pressure tank of fuel cell system |
| CN113156209A (en) * | 2021-03-05 | 2021-07-23 | 淮安骏盛新能源科技有限公司 | Diagnosis method for monitoring looseness of mounting bolts of bus bar connected between modules |
| CN113161958A (en) * | 2021-03-18 | 2021-07-23 | 国网浙江省电力有限公司温州供电公司 | Forceful electric power well low pressure enclosed bus trouble is salvageed and is equipped based on thing networking |
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