CN102923070B - High-voltage power distribution system for electric automobile - Google Patents

High-voltage power distribution system for electric automobile Download PDF

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Publication number
CN102923070B
CN102923070B CN201210417811.2A CN201210417811A CN102923070B CN 102923070 B CN102923070 B CN 102923070B CN 201210417811 A CN201210417811 A CN 201210417811A CN 102923070 B CN102923070 B CN 102923070B
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CN
China
Prior art keywords
electric
contactor
electric contactor
battery charger
voltage
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CN201210417811.2A
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Chinese (zh)
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CN102923070A (en
Inventor
曹正策
龙成冰
杨芸芸
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武汉理工通宇新源动力有限公司
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Priority to CN201210417811.2A priority Critical patent/CN102923070B/en
Publication of CN102923070A publication Critical patent/CN102923070A/en
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Abstract

The invention discloses a high-voltage power distribution system for an electric automobile. The high-voltage power distribution system comprises an electromagnetic relay switch, as well as a charging machine contactor, a power supply contactor of a motor controller and a DC/DC (direct current/direct current) power supply contactor, which are respectively connected with the electromagnetic relay switch; the power supply contactor of the motor controller and the charging machine contactor are connected with the DC/DC power supply contactor; and the charging machine contactor is connected with a charge control end, and the electromagnetic relay switch is connected with the ACC (alternating current circuit) control end and the charge control end. The high-voltage power distribution system disclosed by the invention can realize interlocking of charge of a power battery and power supply of a motor, a DC/DC converter can get high-voltage power supply in two states, namely the power supply of the motor and the charge of the power battery, so that potential safety hazard can be further eliminated.

Description

High-voltage power distribution system for electric automobiles
Technical field
The present invention relates to electronlmobil field, relate in particular to a kind of high-voltage power distribution system for electric automobiles.
Background technology
Electronlmobil refers to taking vehicle mounted dynamic battery as power, the vehicle travelling with power wheel.The driving motor that electrokinetic cell is electronlmobil provides electric energy, and electrical motor is mechanical energy by the electric energy conversion of electrokinetic cell, by driving device or direct drive of wheel and equipment.In electronlmobil, its electrical equipment is far more than conventional truck.Therefore, except low voltage control system, also has high voltage power transmisson system at car load.A lot of components and parts operating voltages in electronlmobil are up to several hectovolts, and electric current is up to tens peaces, peaces even up to a hundred, thereby it is necessary in electronlmobil, introducing high tension distribution system.High tension distribution system is mainly the break-make of controlling by the electrical equipment of high drive, realizes low pressure control high pressure, improves the safety of vehicle and normally travelling of support vehicles.
All more complicated of prior art mesohigh switching arrangement, and there is potential safety hazard, especially DC/DC conv can not all obtain high voltage supply under motor power supply and power battery charging two states, exists potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is under motor power supply and power battery charging two states, can not all obtain high voltage supply for DC/DC conv in prior art, exist the defect of potential safety hazard, a kind of high-voltage power distribution system for electric automobiles that can make DC/DC conv all can obtain high voltage supply under above-mentioned two states is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high-voltage power distribution system for electric automobiles is provided, comprises electromagnetic relay switch, and all connected battery charger contactless switch, electric machine controller supply electric contactor for electric contactor and DC/DC; Electric machine controller is all connected for electric contactor with DC/DC with battery charger contactless switch for electric contactor; Battery charger contactless switch connects charging control end, and electromagnetic relay switch connects ACC control end and charging control end;
In the time not receiving the charging signals of charging control end, battery charger contactless switch is in off-state; In the time receiving charging control end charging signals, battery charger contactless switch closure is power battery charging, the magnet coil energising of electromagnetic relay switch, electric machine controller is for electric contactor because its coil blackout is disconnected, and DC/DC will closedly be the power supply of DC/DC conv for electric contactor;
In the time receiving the actuation signal of ACC control end, battery charger contactless switch is in off-state, electric machine controller is for electric contactor closure, electrokinetic cell will provide DC high-voltage to electric machine controller, the magnet coil of electromagnetism relay switch can not be switched on, but DC/DC can closedly be still the power supply of DC/DC conv for electric contactor.
In high-voltage power distribution system for electric automobiles of the present invention, this system also comprises that the warm braw being connected with warm braw control end is for electric contactor, the air-conditioning that is connected with air-conditioning control end is for electric contactor, and warm braw is all connected and realizes low pressure negative pole altogether with the negative pole of the magnet coil of electromagnetic relay switch for the negative pole of the control coil of electric contactor for electric contactor and air-conditioning.
In high-voltage power distribution system for electric automobiles of the present invention, battery charger contactless switch, electric machine controller supply a control coil two ends diode all in parallel of electric contactor for electric contactor and warm braw for electric contactor, air-conditioning for electric contactor, DC/DC.
In high-voltage power distribution system for electric automobiles of the present invention, DC/DC is all connected with current fuse for electric contactor, warm braw for electric contactor and battery charger contactless switch for electric contactor, air-conditioning.
In high-voltage power distribution system for electric automobiles of the present invention, this system also comprises that high direct voltage is total to negative pole end, and electric machine controller all with high direct voltage is total to negative pole end for electric contactor, warm braw for the negative pole of electric contactor and battery charger contactless switch for electric contactor, air-conditioning for electric contactor, DC/DC and is connected.
In high-voltage power distribution system for electric automobiles of the present invention, connect by copper bar with the high direct voltage large current interface that negative pole end is connected altogether, its relatively low current interface, by selecting suitable wire to be connected with copper bar, is realized high pressure negative altogether in this way.
In high-voltage power distribution system for electric automobiles of the present invention, this system is arranged in splitter box, on a side panel of this splitter box, the adaptor union with error protection function is installed, and this system is connected with peripheral components by adaptor union.
The beneficial effect that the present invention produces is: the present invention is not in the time receiving the charging signals of charging control end, and battery charger contactless switch is in off-state; In the time receiving charging control end charging signals, battery charger contactless switch closure is power battery charging, the magnet coil energising of electromagnetic relay switch, electric machine controller is for electric contactor because its control coil power-off disconnects, and DC/DC will closedly be the power supply of DC/DC conv for electric contactor; In the time receiving the actuation signal of ACC control end, battery charger contactless switch is in off-state, electric machine controller is for electric contactor closure, electrokinetic cell will provide DC high-voltage to electric machine controller, the magnet coil of electromagnetism relay switch can not be switched on, but DC/DC can closedly be still the power supply of DC/DC conv for electric contactor.The present invention can realize the interlocking of power battery charging and motor power supply, and makes DC/DC conv all can obtain high voltage supply under motor power supply and power battery charging two states, thereby has eliminated potential safety hazard.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the electrical principle schematic diagram of embodiment of the present invention high-voltage power distribution system for electric automobiles;
Fig. 2 is the high voltage distribution box cabinet inner structure layout schematic diagram that the embodiment of the present invention is provided with high-voltage power distribution system for electric automobiles;
Fig. 3 is high voltage distribution box front interface schematic diagram.
In figure:
1 electromagnetic relay switch
2,4,6,8,10 diodes
3 electric machine controllers are for electric contactor
5 DC/DC are for electric contactor
7 air-conditionings are for electric contactor
9 warm braws are for electric contactor
11 battery charger contactless switchs
13 preliminary filling resistance
12,14,15,16,17 current fuses
18 charging control ends
19 warm braw control ends
20 air-conditioning control ends
21 ACC control ends
22 preliminary filling feedbacks
23 2 fire just
24 2 times fire is negative
25 electric machine controller high voltage supplies are rectified the utmost point
26 electric machine controller high voltage supply end negative poles
27 DC/DC feeder ear positive poles
28 DC/DC feeder ear negative poles
29 on-board air conditioner feeder ear positive poles
30 on-board air conditioner feeder ear negative poles
31 warm braw feeder ear positive poles
32 warm braw feeder ear negative poles
The utmost point is rectified in 33 AC chargings
34 AC charging end negative poles
35 DC charging are rectified the utmost point
36 DC charging end negative poles
37 high voltage bus positive poles
38 high voltage bus negative poles
39 insulcretes
40, the cylindrical insulated terminal of 51 brown
41,46,49,50,52 copper bars
42,43,44,45,47,48 red insulated terminals
53 high voltage distribution boxes
The anodal feeder ear adaptor union of 54 high voltage bus
55 DC charging are rectified utmost point adaptor union
56 electric machine controller high voltage supplies are rectified utmost point adaptor union
57 high direct voltages are negative pole end adaptor union altogether
58 AC charging adaptor unions
59 DC/DC DC supply adaptor unions
60 air-conditioning power-feed connectors
61 warm braw power-feed connectors
62 seven apertures in the human head control signal adaptor unions
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the high-voltage power distribution system for electric automobiles of the embodiment of the present invention comprises electromagnetic relay switch 1, and all connected battery charger contactless switch 11, electric machine controller supply electric contactor 5 for electric contactor 3 and DC/DC; Electric machine controller is all connected for electric contactor 5 with DC/DC with battery charger contactless switch 11 for electric contactor 3; Battery charger contactless switch 11 connects charging control end 18, and electromagnetic relay switch 1 connects ACC control end 21 and charging control end 18;
In the time not receiving the charging signals of charging control end, battery charger contactless switch 11 is in off-state; In the time receiving the charging signals of charging control end 18, battery charger contactless switch 11 closures are power battery charging, the magnet coil energising of electromagnetic relay switch 1, electric machine controller is for electric contactor 3 because its control coil power-off disconnects, and DC/DC will closedly be the power supply of DC/DC conv for electric contactor 5;
In the time receiving the actuation signal of ACC control end 21, battery charger contactless switch 11 is in off-state, electric machine controller is for electric contactor 3 closures, electrokinetic cell will provide DC high-voltage to electric machine controller, the magnet coil of electromagnetism relay switch 1 can not be switched on, but DC/DC can closedly be still the power supply of DC/DC conv for electric contactor 5.
As seen from the above-described embodiment, each contactless switch can be by disconnected the closing of control signal control corresponding contact device, and power battery charging and motor power supply can realize interlocking; DC/DC conv, under power battery charging and motor power supply two states, all can obtain high voltage supply.
Further, on the basis of above-described embodiment, the system of the embodiment of the present invention also comprises that the warm braw being connected with warm braw control end 10 is for electric contactor 9, the air-conditioning that is connected with air-conditioning control end 20 is for electric contactor 7, and warm braw is all connected and realizes low pressure negative pole altogether with the negative pole of the magnet coil of electromagnetic relay switch 1 for the negative pole of the control coil of electric contactor 7 for electric contactor 9 and air-conditioning.
Further, on the basis of above-described embodiment, this system also comprises altogether negative pole end of high direct voltage, electric machine controller for electric contactor 3, DC/DC for electric contactor 5, air-conditioning for electric contactor 7, warm braw for the negative pole of electric contactor 9 and battery charger contactless switch 11 all together negative terminal be connected.In one embodiment of the invention, connect by copper bar with the high direct voltage large current interface that negative pole end is connected altogether, its relatively low current interface is by selecting suitable wire to be connected with copper bar.
Further, on the basis of above-described embodiment, DC/DC is all connected with current fuse for electric contactor 7, warm braw for electric contactor 9 and battery charger contactless switch 11 for electric contactor 5, air-conditioning.Embodiment of the present invention high-voltage power distribution system for electric automobiles also comprises preliminary filling resistance 13, current fuse 12,14,15,16,17, and the quantity of current fuse is identical with the quantity of contactless switch.
As shown in Figure 1, in a preferred embodiment of the present invention, one end of battery charger contactless switch 11 connects current fuse 17, and the other end of current fuse 17 connects DC charging anodal 35 and AC charging positive pole 33; Electric machine controller is connected with one end of preliminary filling resistance 13 for one end of electric contactor 3, and draws interface (being the proper utmost point 25 of electric machine controller high voltage supply) at this one end use copper bar 49 as shown in Figure 2 and be connected with electric machine controller; DC/DC is connected with the other end of preliminary filling resistance 13 for electric contactor 5 one end, and this one end also connects one end of current fuse 14 simultaneously, and the other end (DC/DC feeder ear positive pole 27) of current fuse 14 is connected with DC/DC conv; Warm braw is connected with current fuse 16 for electric contactor 9 one end, and the other end (warm braw power supply anodal 31) of current fuse 16 is connected with warm air system; Air-conditioning is connected with current fuse 15 for electric contactor 7 one end, and the other end (on-board air conditioner feeder ear positive pole 29) of current fuse 15 is connected with a/c system; Battery charger contactless switch 11, electric machine controller are connected for one end of the other end of electric contactor 5 current fuse 12 larger with for electric contactor 3, DC/DC, and the other end of this current fuse 12 is connected with high voltage bus anodal 37; One end of the current fuse 14 that warm braw is connected for electric contactor 5 with DC/DC for the other end of electric contactor 7 for electric contactor 9, air-conditioning connects.
In embodiments of the invention, the control coil two ends of an each contactless switch diode all in parallel, is used for consuming the self-induced emf producing when electromagnetic contactor coil disconnects.The positive pole of each diode is connected with the negative pole of the coil of its corresponding contact device, and the positive pole of the coil of its corresponding contactless switch of each diode cathode is connected.Diode 10 positive poles of battery charger contactless switch 11 are connected with the negative pole of electromagnetic relay control coil, diode 10 negative poles are connected with an open contact of electromagnetic relay switch 1, while is connected with the positive pole of the control coil of electromagnetic relay 1, and draws an external wire as charging control end 18; It is positive 23 as secondary fire that electric machine controller is directly drawn wire for the negative pole of the diode 2 of electric contactor 3, and another of the positive pole of diode 2 and electromagnetic relay switch 1 organized normally closed contact and be connected; DC/DC is connected with the negative pole of electromagnetic relay switch 1 coil for diode 4 positive poles of electric contactor 5, diode 4 negative poles connect with the intermediate contact of this group switch of the diode 10 that has been connected battery charger relay 11 in electromagnetic relay switch 1, and draw a wire as ACC control end 21 at the normally closed contact end of this group contact; Warm braw is connected with the negative pole of electromagnetic relay switch 1 coil for the positive pole of the diode 8 of electric contactor 9, and directly draws a wire as warm braw control end 19 from the positive pole of diode 8; Air-conditioning is connected with the negative pole of electromagnetic relay switch 1 coil for the positive pole of the diode 6 of electric contactor 7, and directly draws a wire as air-conditioning control end 20 from the positive pole of diode 6; Also should directly draw a wire as secondary fire negative 24 for the negative pole of electromagnetic relay switch 1 coil.
This high-voltage power distribution system for electric automobiles is arranged in a high voltage distribution box 53, has the function of certain waterproof and dustproof and high insulation.On one side panel of this splitter box 53, the adaptor union with error protection function is installed, this system is connected with peripheral components by adaptor union.As shown in Figure 2, the electric elements of system are fixed on an insulcrete 39, and from left to right electric elements are specially high voltage bus current fuse 12, battery charger contactless switch 11, electric machine controller confession electric contactor 3, DC/DC for electric contactor 5, air-conditioning confession electric contactor 7, warm braw confession electric contactor 9, electromagnetic relay switch 1; All the other four current fuses 14,15,16,17 and preliminary filling resistance 13 and the corresponding corresponding next row that is placed on of contactless switch.
In one embodiment of the present of invention, insulcrete 49 can be placed the bottom surface that is fixed on high voltage distribution box 53, each lead-in wire will be fixed on the outside face of high voltage distribution box 53 by adaptor union 54,55,56,57,58,59,60,61 and 62, so just can each interface of high-voltage power distribution system for electric automobiles be connected with corresponding electric system by wire, define the function of each interface simultaneously; Selected high voltage distribution box 53 is seal box, and its IP grade meets related request.
High voltage bus current fuse 12, battery charger contactless switch 11, electric machine controller connect for the parallel connected end copper bar 41 of electric contactor 5 four for electric contactor 3, DC/DC, and DC/DC connects for its corresponding current fuse 14 copper bars 46 of electric contactor 5; High voltage bus positive pole 37, high voltage bus negative pole 38, DC charging are rectified the utmost point 35, DC charging end negative pole 36, electric machine controller high voltage supply and are rectified the utmost point 25, electric machine controller high voltage supply end negative pole 26 and adopt six adaptor unions 54,55,56,57(wherein 57 to comprise three adaptor unions) connect three copper bar parallel connections for negative pole; AC charging is rectified the utmost point 33, AC charging end negative pole 34, DC/DC feeder ear positive pole 27, DC/DC feeder ear negative pole 28, air-conditioning feeder ear positive pole 29, air-conditioning feeder ear negative pole 30, warm braw feeder ear anodal 31 and warm braw feeder ear negative pole 32 and is selected four adaptor unions 58,59,60,61 that are more than or equal to two cores; Seven cores of adaptor union 62 select to(for) signal conductor, will be connected with entire car controller, and these adaptor unions are all arranged on the front of high voltage distribution box 53.
Each interface on high-voltage power distribution system for electric automobiles should have the function of error protection, except being total to negative pole end adaptor union, three high direct voltages can adopt unified model, the model of other 8 adaptor unions all should be different, therefore the selection of adaptor union at least has 9 kinds of different models.
Principle of work of the present invention is: the voltage of control signal is 12V.ACC control end 21 is controlled DC/DC for electric contactor 5, and both control electric machine controller for electric contactor 3 preliminary filling feedback end 22 and secondary fire anodal 23 simultaneously, and air-conditioning control end 20 is controlled air-conditioning for electric contactor 7, and warm braw control end 19 is controlled warm braw for electric contactor 9.Battery charger contactless switch 11 is generally in off-state, in the time that charging control end 18 gives signal, battery charger contactless switch 11 closures, the magnet coil energising of electromagnetic relay switch 1, two groups of normally closed contacts are jumped on open contact, now electric machine controller is for electric contactor 3 because its coil blackout disconnects, and DC/DC will be closed for electric contactor 5, continues to power to DC/DC conv.This device can be realized power battery charging and motor power supply interlocking, and DC/DC conv all can obtain high voltage supply under motor power supply and power battery charging two states.
In Fig. 1, dotted line represents and the high direct voltage high tension cord that negative pole end is connected altogether, and all high tension cords adopt same negative pole point.From Fig. 1, can obtain, in the time that battery charger contactless switch 11 is closed, electric machine controller there will be disconnection for the circuit at electric contactor 3 places, therefore both interlockings.When interface ACC control end 21 supplies high level, DC/DC can be closed for electric contactor 5, because air-conditioning is connected for the end that picks out of electric contactor 5 with DC/DC for one end of electric contactor 9 with warm braw for electric contactor 7, therefore under the state of only working for electric contactor 5 at DC/DC, air-conditioning could be worked for electric contactor 9 for electric contactor 7 and warm braw.When analysis chart 1 can obtain battery charger contactless switch 11 closure, DC/DC also can be closed for electric contactor 5, therefore can obtain, DC/DC conv all can be in running order in the time of battery charging and motor power supply, and a/c system and warm air system also can all be worked under two states.
In Fig. 2, provide the structural plan of the inner electric elements of a kind of high tension distribution system, all electric elements are all fixed on insulcrete 39.Current fuse 12 is supported on insulcrete 39 by the cylindrical insulated terminal 40,51 of brown, and current fuse 14,15,16,17 is supported on insulcrete 39 by red insulated terminal 42,43,44,45,47,48.Current fuse 12, battery charger contactless switch 11, electric machine controller connect by copper bar 41 for the common positive terminal of electric contactor 5 for electric contactor 3, DC/DC, current fuse 12 is connected by copper bar 52 with the anodal feeder ear adaptor union 54 of high voltage bus, current fuse 17 is rectified utmost point adaptor union 55 with DC charging and is connected by copper bar 50, electric machine controller is rectified utmost point adaptor union 56 for electric contactor 3 and electric machine controller high voltage supply and is connected by copper bar 49, and DC/DC is connected by copper bar 46 with current fuse 14 for electric contactor 5.Divide and all adopt wire to connect for other circuit connecting section, institute's wire diameter that uses is according to the selection of calculated size of current.
In Fig. 3, because high tension distribution system is with extraneous what is connected is all high-tension bus-bar, electric current greatly, therefore total interface all should have the function of error protection.The electric current that six adaptor unions in the figure pass through is larger, select the adaptor union of the special small electronlmobil of Amphrnol, select altogether four models, the angle of its Anti-misplug is respectively 90 degree, 120 degree, 135 degree, 180 degree, wherein all adopt 90 degree with high direct voltage three adaptor unions that negative pole end is connected altogether (being high direct voltage negative pole end adaptor union 57 altogether), socket is pin type.For lower row's adaptor union, front four because electric current is less, therefore can select the general air plug of prestige, AC charging adaptor union 58 is that the jack socket of two cores, the contact pin type socket that DC/DC DC supply adaptor union 45 is two cores, jack socket, the warm braw power-feed connector 64 that air-conditioning power-feed connector 60 is three cores are three core formula contact pin type sockets, and seven apertures in the human head control signal adaptor union 62 can be selected the jack socket of seven cores at prestige Pu.Be anodal for this socket definition 1,2 is negative pole, and an other core of three cores is vacated for subsequent use.
The parameter of selected electric elements in this example is determined according to the calculation of parameter of mated vehicle and the selected annex of this car.Rated voltage in the embodiment of the present invention is 336V, and the rated current of the electric machine controller mating is 120A.For the vehicle of coupling different parameters, can be different with accessory parameters according to required voltage on the basis of the embodiment of the present invention, calculate the parameter of selecting electric elements, adopt identical location arrangements, select to be applicable to the splitter box of size and IP grade, select suitable copper bar, wire to connect, just can obtain needed high tension distribution system.
High-voltage power distribution system for electric automobiles of the present invention, can realize the control to DC charging, AC charging, motor power supply, DC/DC power supply, air-conditioning power supply, warm braw power supply; And can realize the interlocking of charging and motor power supply; High-voltage power distribution system for electric automobiles of the present invention in addition, volume is little, is convenient to install, and waterproof and dustproof is better, good insulation preformance.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.

Claims (7)

1. a high-voltage power distribution system for electric automobiles, is characterized in that, comprises electromagnetic relay switch, and all connected battery charger contactless switch, electric machine controller supply electric contactor for electric contactor and DC/DC; Electric machine controller is all connected for electric contactor with DC/DC with battery charger contactless switch for electric contactor; Battery charger contactless switch connects charging control end, and electromagnetic relay switch connects ACC control end and charging control end;
In the time not receiving the charging signals of charging control end, battery charger contactless switch is in off-state; In the time receiving charging control end charging signals, battery charger contactless switch closure is power battery charging, the magnet coil energising of electromagnetic relay switch, electric machine controller is for electric contactor because its coil blackout is disconnected, and DC/DC will closedly be the power supply of DC/DC conv for electric contactor;
In the time receiving the actuation signal of ACC control end, battery charger contactless switch is in off-state, electric machine controller is for electric contactor closure, electrokinetic cell will provide DC high-voltage to electric machine controller, the magnet coil no power of electromagnetism relay switch, but DC/DC can closedly be still the power supply of DC/DC conv for electric contactor.
2. high-voltage power distribution system for electric automobiles according to claim 1, it is characterized in that, this system also comprises that the warm braw being connected with warm braw control end is for electric contactor, the air-conditioning being connected with air-conditioning control end is for electric contactor, and warm braw is all connected with the magnet coil negative pole of electromagnetic relay switch and realizes low pressure negative pole altogether for the negative pole of the control coil of electric contactor with air-conditioning for electric contactor.
3. high-voltage power distribution system for electric automobiles according to claim 2, it is characterized in that, battery charger contactless switch, electric machine controller supply a control coil two ends diode all in parallel of electric contactor for electric contactor and warm braw for electric contactor, air-conditioning for electric contactor, DC/DC.
4. high-voltage power distribution system for electric automobiles according to claim 3, is characterized in that, DC/DC is all connected with current fuse for electric contactor, warm braw for electric contactor and battery charger contactless switch for electric contactor, air-conditioning.
5. high-voltage power distribution system for electric automobiles according to claim 4, it is characterized in that, this system also comprises that high direct voltage is total to negative pole end, and electric machine controller all with high direct voltage is total to negative pole end for electric contactor, warm braw for the negative pole of electric contactor and battery charger contactless switch for electric contactor, air-conditioning for electric contactor, DC/DC and is connected.
6. high-voltage power distribution system for electric automobiles according to claim 5, is characterized in that, connects by copper bar with the high direct voltage large current interface that negative pole end is connected altogether, and its relatively low current interface is by selecting suitable wire to be connected with copper bar.
7. according to the high-voltage power distribution system for electric automobiles described in any one in claim 1-6, it is characterized in that, this system is arranged in splitter box, on a side panel of this splitter box, the adaptor union with error protection function is installed, and this system is connected with peripheral components by adaptor union.
CN201210417811.2A 2012-10-26 2012-10-26 High-voltage power distribution system for electric automobile CN102923070B (en)

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