CN107284247A - A kind of electric automobile and high voltage distribution box - Google Patents

A kind of electric automobile and high voltage distribution box Download PDF

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Publication number
CN107284247A
CN107284247A CN201710464255.7A CN201710464255A CN107284247A CN 107284247 A CN107284247 A CN 107284247A CN 201710464255 A CN201710464255 A CN 201710464255A CN 107284247 A CN107284247 A CN 107284247A
Authority
CN
China
Prior art keywords
voltage
contactor
distribution box
controller
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.)
Pending
Application number
CN201710464255.7A
Other languages
Chinese (zh)
Inventor
王璇
樊翠翠
张鸿儒
李鸥
王雅静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Changan Automobile Co Ltd
Beijing Changan Automobile Engineering Technology Research Co Ltd
Original Assignee
Hefei Changan Automobile Co Ltd
Beijing Changan Automobile Engineering Technology Research Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Changan Automobile Co Ltd, Beijing Changan Automobile Engineering Technology Research Co Ltd filed Critical Hefei Changan Automobile Co Ltd
Priority to CN201710464255.7A priority Critical patent/CN107284247A/en
Publication of CN107284247A publication Critical patent/CN107284247A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04Cutting off the power supply under fault conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric 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
    • B60R16/02Electric 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
    • B60R16/023Electric 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
    • B60R16/0239Electronic boxes
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24Circuit arrangements for boards or switchyards
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices

Abstract

The invention discloses a kind of electric automobile and high voltage distribution box, including controller, high-voltage positive electrode contactor, high voltage negative contactor, high pressure pre-charge contactor, preliminary filling resistance, high voltage input terminal plug connector, high pressure part plug connector and high-voltage interlocking line, the high voltage distribution box that the present invention is provided completes basic power distribution, while current protection, on the one hand, controller is arranged on the inside of high voltage distribution box, so that only needing several necessary circuit such as communication buses, controller ground wire and power line and external connection, security performance is higher, on the other hand, the high voltage distribution box that the application is provided is also provided with high-voltage interlocking line, high-voltage interlocking line is connected with high voltage input terminal plug connector and high pressure part plug connector, there is a plug connector to loosen or disconnect, controller can all control all contactors to disconnect, further increase the security performance of high voltage distribution box.

Description

A kind of electric automobile and high voltage distribution box
Technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of electric automobile and high voltage distribution box.
Background technology
With the support energetically to energy-saving and emission-reduction of development and country of electric vehicle engineering, electric automobile is increasingly Popularize, but resulting safety problem is also increasingly taken seriously.There are many high-tension electricity devices, such as battery on electric automobile The parts such as bag, motor, ptc heater, DC/DC circuits, electric compressor of air conditioner, the operating voltage of these parts is all in 300V More than, this allows for becoming device essential on car for carrying out distribution centre high voltage distribution box to these high-tension circuits. Only there is the components such as some relays, insurance inside high voltage distribution box of the prior art, be more as a power supply Distribution, the device of current protection, do not have higher grade in terms of safeguard protection.
Therefore, how to provide a kind of high high voltage distribution box of security performance and electric automobile is that those skilled in the art are current The problem of needing to solve.
The content of the invention
It is an object of the invention to provide a kind of electric automobile and high voltage distribution box, the security of high voltage distribution box is improved Energy.
In order to solve the above technical problems, being contacted the invention provides a kind of high voltage distribution box, including controller, high-voltage positive electrode Device, high voltage negative contactor, high pressure pre-charge contactor, preliminary filling resistance, high voltage input terminal plug connector, high pressure part plug connector and High-voltage interlocking line, wherein:
The communication terminal of the controller is connected with vehicle communication network, and the controller also connects with the high-voltage positive electrode respectively The control end connection of the control end of tentaculum, the control end of the high voltage negative contactor and the high pressure pre-charge contactor, is used The control instruction sent in the reception vehicle communication network, and opening for corresponding contactor is controlled according to the control instruction Close;
The first end of the high-voltage positive electrode contactor and the first end of the high pressure pre-charge contactor are by positioned at height The positive pole of the high-voltage positive electrode input on block terminal and battery bag is pressed to connect, the second end of the high pressure pre-charge contactor passes through The preliminary filling resistance is connected with the second end of the high-voltage positive electrode contactor, and its common port is by high-voltage power cathode line with being located at High-voltage positive electrode output end connection on high voltage distribution box;The first end of the high voltage negative contactor passes through positioned at high voltage distribution box On high voltage negative input and the negative pole of battery bag connect, the second end of the high voltage negative contactor is negative by high voltage power supply Polar curve is connected with the high voltage negative output end on high voltage distribution box;
The high-voltage interlocking line two ends are connected with the controller, and the high-voltage interlocking line is midway through the high input voltage Plug connector, the high pressure part plug connector and high voltage power distribution lid switch are held, the controller is additionally operable to work as the high-voltage interlocking When line is off, all contactors are controlled to disconnect.
Preferably, the high voltage distribution box also includes filling contactor and trickle charge contactor soon, wherein:
The control end for filling contactor soon and the control end of the trickle charge contactor are connected with the controller, described The first end of contactor is filled soon and the first end of the trickle charge contactor is connected with the high-voltage positive electrode input, it is described to fill soon Second end of contactor be connected with the direct current charge input on the high voltage distribution box, the second end of the trickle charge contactor and Exchanging trickle charge input connection on high voltage distribution box.
Preferably, the high voltage distribution box also includes total insurance and code insurance danger, wherein:
Total insurance is arranged in the bus of the high-voltage power cathode line, and the code insurance is nearly arranged on the high-tension electricity On the separated time of source electrode line.
Preferably, the high voltage distribution box also includes active discharge contactor and active discharge insures, the active discharge The control end of contactor is connected with the controller, and the first end of the active discharge contactor is insured by the active discharge It is connected with the high voltage power supply negative line, the second end of the active discharge contactor and the second end of the pre-charge contactor Connection.
Preferably, controller feedback of status end also respectively with the high-voltage positive electrode contactor, the high voltage negative The feedback of status end of contactor, the feedback of status of the high pressure pre-charge contactor, the feedback of status end for filling contactor soon And the feedback of status end connection of the trickle charge contactor, for obtaining the high-voltage positive electrode contactor, the high voltage negative respectively Contactor, the high pressure pre-charge contactor, the on off state for filling contactor and the trickle charge contactor soon, and will contact The on off state of device is sent to the vehicle communication network.
Preferably, the block terminal also includes the high-voltage current sensor being arranged in the high voltage power supply negative line, institute State high-voltage current sensor to be connected with the controller, the controller is additionally operable to receive the high-voltage current sensor collection High-tension current signal, and the high-tension current signal is sent to the vehicle communication network.
Preferably, the vehicle communication network is vehicle CAN network.
In order to solve the above technical problems, matching somebody with somebody present invention also offers a kind of electric automobile, including high pressure as described above Electric box.
The invention provides a kind of electric automobile and high voltage distribution box, including controller, high-voltage positive electrode contactor, high pressure are negative Pole contactor, high pressure pre-charge contactor, preliminary filling resistance, high voltage input terminal plug connector, high pressure part plug connector and high-voltage interlocking Line, the high voltage distribution box that the present invention is provided is while basic power distribution, current protection is completed, on the one hand, controller is set Put in the inside of high voltage distribution box, so that only needing several necessary circuits such as communication bus, controller ground wire and power line With external connection, outside is arranged on so that existing between controller and high voltage distribution box numerous with controller of the prior art Circuit, security low phase ratio, the high voltage distribution box security performance that the application is provided are higher, on the other hand, the height that the application is provided Pressure block terminal is also provided with high-voltage interlocking line, and high-voltage interlocking line is connected with high voltage input terminal plug connector and high pressure part plug connector, There is a plug connector to loosen or disconnect, controller can all control all contactors to disconnect, and further increase high voltage distribution box Security performance.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings Obtain other accompanying drawings.
A kind of structural representation for high voltage distribution box that Fig. 1 provides for the present invention;
Wherein, high-voltage interlocking signal output 1, high-voltage positive electrode input 2, high voltage input terminal plug connector 3, high voltage negative input Hold 4, fill contactor 5, trickle charge contactor 6, high-voltage positive electrode contactor 7, high pressure pre-charge contactor 8, high voltage negative contactor soon 9th, preliminary filling resistance 10, always insurance 11, high pressure part code insurance danger 1, high pressure part code insurance danger 2 13, high pressure part code insurance danger three 14th, high pressure part code insurance danger 4 15, active discharge contactor 16, high-voltage current sensor 17, active discharge insurance 18, direct current are fast Charging source line 19, fill soon contactor status feedback signal 20, fill contactor control signal 21 soon, it is exchanging trickle charge power line 22, slow Fill contactor status feedback signal 23, trickle charge contactor control signal 24, low-voltage ground wire 25, high-voltage positive electrode contactor control signal 26th, high-voltage positive electrode contactor status feedback signal 27, high-voltage positive electrode power supply output 1, high-voltage positive electrode power supply output 2 29, height Pressure cathode power supply output 3 30, high-voltage positive electrode power supply output 4 31, high pressure pre-charge contactor control signal 32, active discharge connect Tentaculum control signal 33, high voltage negative contactor control signal 34, high voltage negative contactor status feedback signal 35, high voltage power supply Negative line 36, current sensor power supply 37, current sensor signal 1, current sensor signal 2 39, current sensor 40th, high-voltage interlocking signal input 41, direct current charge plug connector 42, exchanging trickle charge plug connector 43, the plug connector 44 of high pressure part 1, height Pressure part 2 plug connector 45, the plug connector 46 of high pressure part 3, the plug connector 47 of high pressure part 4, high voltage power distribution lid switch 48, high pressure are matched somebody with somebody Electric box controller 49, low-tension supply line 50, low-voltage ground wire 51, CAN_H connections 52, CAN_L connections 53, low voltage wiring harness grafting Part 54.
Embodiment
The core of the present invention is to provide a kind of electric automobile and high voltage distribution box, improves the security of high voltage distribution box Energy.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It refer to Fig. 1, a kind of structural representation for high voltage distribution box that Fig. 1 provides for the present invention, the high voltage distribution box bag Include controller 49, high-voltage positive electrode contactor 7, high voltage negative contactor 9, high pressure pre-charge contactor 8, preliminary filling resistance 10, high pressure Input plug connector 3, high pressure part plug connector and high-voltage interlocking line, wherein:
The communication terminal of controller 49 is connected with vehicle communication network, controller 49 also respectively with high-voltage positive electrode contactor 7 The control end connection of control end, the control end of high voltage negative contactor 9 and high pressure pre-charge contactor 8, leads to for receiving vehicle The control instruction that network is sent is interrogated, and according to the switch of the corresponding contactor of control instruction control;
The first end of high-voltage positive electrode contactor 7 and the first end of high pressure pre-charge contactor 8 are by positioned at high voltage power distribution High-voltage positive electrode input 2 on box is connected with the positive pole of battery bag, and the second end of high pressure pre-charge contactor 8 passes through preliminary filling resistance 10 are connected with the second end of high-voltage positive electrode contactor 7, and its common port is by high-voltage power cathode line with being located on high voltage distribution box High-voltage positive electrode output end connection;The first end of high voltage negative contactor 9 is defeated by the high voltage negative on high voltage distribution box Enter end 4 to be connected with the negative pole of battery bag, the second end of high voltage negative contactor 9 is by high voltage power supply negative line 36 and positioned at high pressure High voltage negative output end connection on block terminal;
High-voltage interlocking line two ends are connected with controller 49, and high-voltage interlocking line is midway through high voltage input terminal plug connector 3, high pressure Part plug connector and high voltage power distribution lid switch 48, controller 49 is additionally operable to when high-voltage interlocking line is off, control All contactors disconnect.
Specifically, the high voltage distribution box that the application is provided includes controller 49, high-voltage positive electrode contactor 7, high voltage negative and connect Tentaculum 9 and high pressure pre-charge contactor 8, disclosure satisfy that basic power distribution and current protection.The application is provided below Each function of high voltage distribution box is described:
Vehicle is pre-charged:
To reduce battery bag when being powered for high pressure part, the closure instantaneous large-current of high-voltage positive electrode contactor 7 and big voltage It can be first high pressure part that the high voltage distribution box in high pressure part component, the application, which may be damaged, before for the charging of high pressure part Precharge.
Specifically, when whole vehicle state meets precharge condition, precharge is sent from vehicle communication network to controller 49 Message, controller 49 is received after precharge message, high voltage negative contactor control signal 34 can be set into high level, bears high pressure The adhesive of pole contactor 9, now high voltage power supply negative line 36 be switched to battery bag negative pole, meanwhile, the state of high voltage negative contactor 9 is anti- Feedback signal 35 is changed into low level from hanging state, feeds back to controller 49, and controller 49 judges to have obtained high voltage negative contactor 9 Adhesive and by the feedback of status to vehicle communication network;
Next, the control signal 32 of high pressure pre-charge contactor 8 is put high level by controller 49, connect high pressure precharge The adhesive of tentaculum 8, now high-voltage positive electrode output end is (including high-voltage positive electrode power supply output 1, high-voltage positive electrode power supply output 2 29, high Cathode power supply output 3 30, high-voltage positive electrode power supply is pressed to export 4 high-voltage power cathode lines 31) by preliminary filling resistance 10 and electricity Pond bag positive pole is connected, and with the high voltage power supply negative line 36 above connected, constitutes preliminary filling loop, battery bag passes through high-voltage power cathode Line and high voltage power supply negative line 36 start to enter line precharge to high voltage parts, and high-voltage current sensor 17 gathers electric current, and will The current information collected is inputed into controller 49, current information is sent to vehicle communication network by controller 49 again.
It should be noted that high-voltage positive electrode output end specifically includes the how many port present invention does not do special limit herein It is fixed, determined according to actual conditions, it is contemplated that in practical application, it is mechanical, electrical that the high voltage parts on electric automobile include DC/DC, electricity Compressor of air conditioner and ptc heater these four, high-voltage positive electrode power supply therefore, in the application is included with high-voltage positive electrode output end and exported One 28, next pair exemplified by high-voltage positive electrode power supply output 2 29, high-voltage positive electrode power supply output 3 30 and high-voltage positive electrode power supply output 4 31 High voltage distribution box is described.
It is electric in vehicle high pressure:
Precharge terminates and by after checking (pre-charge voltage can be set under normal circumstances and reach nominal charging voltage Just can be carried out when 80% electric in vehicle high pressure), you can vehicle high pressure power up is carried out, keeps high pressure to bear under pre-charge state The adhesive of pole contactor 9, while the control signal 26 of high-voltage positive electrode contactor 7 is put high level by controller 49, makes high-voltage positive electrode The adhesive of contactor 7, high-voltage positive electrode output end is (including high-voltage positive electrode power supply output 1, high-voltage positive electrode power supply output 2 29, high Pressure cathode power supply output 3 30, high-voltage positive electrode power supply export 4 high-voltage power cathode lines 31) and are directly connected with battery bag positive pole, No longer by preliminary filling resistance 10, now the status feedback signal 27 of high-voltage positive electrode contactor 7 is changed into low level from hanging state, feeds back to Controller 49, controller 49 judges to send state to vehicle communication network when obtaining the adhesive of high-voltage positive electrode contactor 7, whole Individual system confirms that the control signal 32 of high pressure pre-charge contactor 8 is set low level by controller 49, makes height in high pressure after electricity success Pressure pre-charge contactor 8 disconnects.Now, battery bag positive pole negative line Jun Yi UNICOMs, vehicle high voltage parts are in energization shape Electricity is finished in state, vehicle high pressure.It is electric under vehicle high pressure:
When vehicle is in high pressure conditions and meets lower electric condition, lower telegram is sent from vehicle communication network to controller 49 Text, controller 49 is received after lower telegram text, and the control signal 26 of high-voltage positive electrode contactor 7 and high voltage negative contactor 9 are controlled Signal 34 sets low level, and now high-voltage positive electrode contactor 7 and high voltage negative contactor 9 disconnect, cutting overall height voltage source, together When, controller 49 believes the status feedback signal 27 of high-voltage positive electrode contactor 7 detected and the feedback of status of high voltage negative contactor 9 Numbers 35 feed back to vehicle communication network.
High-voltage interlocking function:
It is equipped with high-voltage interlocking line on block terminal on whole high pressure plug connectors, high-voltage interlocking line two ends access controller 49, Midway through high voltage input terminal plug connector 3, direct current charge plug connector 42, exchanging trickle charge plug connector 43 (will hereafter mention), high pressure Part plug connector and high voltage power distribution lid switch 48, the non-grafting of any of the above plug connector or grafting are loosened, and whole mutually locking wire is in Off-state, only whole plug connectors firm plug, mutual locking wire is just connected, and controller 49 is in high-voltage interlocking signal output 1 Place's output high level, and detected at high-voltage interlocking signal input 41, if being detected as high level, illustrate whole mutually locking wire In an ON state, whole plug connectors firm plug, if being detected as hanging state, illustrates that the high pressure that mutual locking wire is passed through is inserted Fitting has non-grafting or loosening at least one, and whole contactor control ends that now controller 49 is controlled set low level, institute There is contactor all off, cut off all high-tension circuits, safety of person vehicle is protected, while state is sent to CAN.
As a kind of preferred embodiment, high voltage distribution box also includes filling contactor 6 and trickle charge contactor 6 soon, wherein:
The control end of contactor 6 is filled soon and the control end of trickle charge contactor 6 is connected with controller 49, and contactor 6 is filled soon First end and the first end of trickle charge contactor 6 be connected with high-voltage positive electrode input 2, the second end and position of contactor 6 are filled soon In the direct current charge input connection on high voltage distribution box, the second end of trickle charge contactor 6 and the friendship on high voltage distribution box Flow the connection of trickle charge input.
In order to improve the charging washability of battery bag, the application is provided with also directed to different charge power supplies fills contactor soon 6 and trickle charge contactor 6.
Vehicle direct current charge:
When whole vehicle state meets direct current quick charge condition, preliminary filling telegram is sent from vehicle communication network to controller 49 The control signal 34 of high voltage negative contactor 9 is put high level, makes high voltage negative by text, controller 49 after precharge message is received The adhesive of contactor 9, now high voltage power supply negative line 36 be switched to battery bag negative pole, meanwhile, the feedback of status of high voltage negative contactor 9 Signal 35 is changed into low level from hanging state, feeds back to controller 49, and controller 49 judges that obtaining high voltage negative contactor 9 has inhaled Merge feedback of status to vehicle communication network;
Next, controller 49, which will fill the control signal of contactor 6 soon, puts high level, make to fill the adhesive of contactor 6 soon, now directly Stream charging quickly source line 19 is switched to battery bag positive pole, while fill the status feedback signal 20 of contactor 6 soon is changed into low electricity from hanging state It is flat, feed back to controller 49, controller 49 judges to be filled the adhesive of contactor 6 soon and by feedback of status to vehicle communication network Network, so far, battery bag high pressure both positive and negative polarity first have been connected to quick charge rifle, and circuit is ready to complete, and wait charging pile and vehicle Communication is charged after finishing, after end to be charged, and controller 49 will fill the control signal 21 of contactor 6 and high voltage negative contact soon The control signal 34 of device 9 sets low level, makes to fill contactor 6 soon and high voltage negative contactor 9 disconnects, and cuts off vehicle charging circuit, together When, controller 49 fills the status feedback signal 20 of contactor 6 and the status feedback signal 35 of high voltage negative contactor 9 soon by what is detected Feedback of status is to vehicle communication network.
Vehicle exchanging trickle charge:
When whole vehicle state meets AC charging condition, precharge message is sent from vehicle communication network to controller 49, The control signal 34 of high voltage negative contactor 9 is put high level, contacts high voltage negative by controller 49 after precharge message is received The adhesive of device 9, now high voltage power supply negative line 36 be switched to battery bag negative pole, meanwhile, the status feedback signal of high voltage negative contactor 9 35 are changed into low level from hanging state, feed back to controller 49, and controller 49 judges to obtain the adhesive of high voltage negative contactor 9 simultaneously By feedback of status to vehicle communication network;
Next, the control signal 24 of trickle charge contactor 6 is put high level by controller 49, make the adhesive of trickle charge contactor 6, now Exchanging trickle charge power line is switched to battery bag positive pole, while the status feedback signal 23 of trickle charge contactor 6 is changed into low electricity from hanging state It is flat, it is fed back to controller 49, controller 49 judges to obtain the adhesive of trickle charge contactor 6 and by feedback of status to vehicle communication network Network, so far, battery bag high pressure both positive and negative polarity first have been connected to trickle charge power line, and circuit is ready to complete, and waits to be charged, charging terminates Afterwards, the control signal 24 of trickle charge contactor 6 and the control signal 34 of high voltage negative contactor 9 are set low level by controller 49, make trickle charge Contactor 6 and high voltage negative contactor 9 disconnect, and cut off vehicle charging circuit, meanwhile, controller 49 contacts the trickle charge detected The status feedback signal 23 of device 6 and the feedback of status of 9 status feedback signal of high voltage negative contactor 35 are to vehicle communication network.
As a kind of preferred embodiment, high voltage distribution box also includes total insurance 11 and code insurance danger, wherein:
Total insurance 11 is arranged in the bus of high-voltage power cathode line, and code insurance is nearly arranged on the separated time of high-voltage power cathode line On.
Specifically, high voltage distribution box is all provided with code insurance danger on per High voltage output all the way, is provided with total also in bus Insurance 11,
In order to further improve the security performance of high voltage distribution box, in the bus of the high-voltage power cathode line of high voltage distribution box It is upper to be provided with total insurance 11, code insurance danger (high pressure part code insurance danger 1, high pressure are provided with the separated time of high-voltage power cathode line Part code insurance danger 2 13, high pressure part code insurance danger 3 14, high pressure part code insurance danger 4 15), then on the one hand, any high-voltage line all the way Passing by stream or total current excessively stream can all burn to insurable, play overcurrent protection function;On the other hand, even if electric current mistake on separated time Greatly, divide fuse melting, nor affect on the normal work of other separated times, improve the reliability and operating efficiency of high voltage distribution box.
As a kind of preferred embodiment, high voltage distribution box also includes active discharge contactor 16 and active discharge insures 18, the control end of active discharge contactor 16 is connected with controller 49, and the first end of active discharge contactor 16 passes through active release Electricity insurance 18 is connected with high voltage power supply negative line, and the second end of active discharge contactor 16 and the second end of pre-charge contactor connect Connect.
Specifically, to enable high voltage distribution box to be applied to all kinds of vehicles, the security performance of electric automobile, the application are improved In high voltage distribution box be provided with active discharge function, mainly for the high voltage parts without active discharge function.
When vehicle is in high pressure conditions and meets lower electric condition, lower telegram text, controller are sent by vehicle communication network 49 are received after lower telegram text, and the control signal 26 of high-voltage positive electrode contactor 7 and the control signal 34 of high voltage negative contactor 9 are set low Level, now high-voltage positive electrode contactor 7 and high voltage negative contactor 9 disconnect, cutting overall height voltage source, meanwhile, controller 49 The status feedback signal 27 of high-voltage positive electrode contactor 7 detected and high voltage negative contactor 9 status feedback signal, 35 states is anti- It is fed to vehicle communication network;
At the same time, the control signal 33 of active discharge contactor 16 is put high level by high voltage distribution box controller 49, makes master The dynamic electric discharge adhesive of contactor 16, now, the both positive and negative polarity high-voltage line of high pressure part is connected by preliminary filling resistance 10, is stored in high pressure zero Electric energy in part is consumed by preliminary filling resistance 10, plays a part of active discharge.
As a kind of preferred embodiment, the feedback of status end also respectively with high-voltage positive electrode contactor 7 of controller 49, high pressure The feedback of status end of cathode contact device 9, the feedback of status of high pressure pre-charge contactor 8, the feedback of status end for filling contactor 6 soon and The feedback of status end connection of trickle charge contactor 6, for obtaining high-voltage positive electrode contactor 7, high voltage negative contactor 9, high pressure respectively Pre-charge contactor 8, the on off state for filling contactor 6 and trickle charge contactor 6 soon, and the on off state of contactor is sent to whole Car communication network.
Specifically, it is above-mentioned when each function to high-voltage charging box is introduced, also mention controller 49 each in control The contactor state of contactor feedback can be received after contactor action, and contactor state is sent to vehicle by communication bus Communication network, so that staff understands the state of each contactor in time.
As a kind of preferred embodiment, block terminal also includes the high-tension current sensing being arranged in high voltage power supply negative line Device 17, high-voltage current sensor 17 is connected with controller 49, and controller 49 is additionally operable to receive what high-voltage current sensor 17 was gathered High-tension current signal, and high-tension current signal is sent to vehicle communication network.
Understand in time in high voltage distribution box, block terminal to further facilitate staff and high-voltage current sensor is installed 17, it is connected in high voltage power supply negative line 36, the size of monitoring battery bag total current and change, and access controller 49 in real time, Current information is sent to vehicle communication network by controller 49.
As a kind of preferred embodiment, vehicle communication network is vehicle CAN network.
Certainly, vehicle communication network here, except that can be vehicle CAN network, can also be other kinds of communication network Network, the present invention is not particularly limited herein, is determined according to actual conditions.
The invention provides a kind of high voltage distribution box, including controller, high-voltage positive electrode contactor, high voltage negative contactor, High pressure pre-charge contactor, preliminary filling resistance, high voltage input terminal plug connector, high pressure part plug connector and high-voltage interlocking line, the present invention The high voltage distribution box of offer is while basic power distribution, current protection is completed, on the one hand, controller is arranged on high pressure and matched somebody with somebody The inside of electric box, so that several necessary circuits such as communication bus, controller ground wire and power line and external connection are only needed, Outside is arranged on so that there is numerous circuits, security between controller and high voltage distribution box with controller of the prior art Low phase ratio, the high voltage distribution box security performance that the application is provided is higher, on the other hand, and the high voltage distribution box that the application is provided also is set High-voltage interlocking line is put, high-voltage interlocking line is connected with high voltage input terminal plug connector and high pressure part plug connector, there is a plug connector Loosen or disconnect, controller can all control all contactors to disconnect, and further increase the security performance of high voltage distribution box.
In order to solve the above technical problems, present invention also offers a kind of electric automobile, including high voltage distribution box described above.
The introduction of the electric automobile mesohigh block terminal provided for the present invention refer to above-described embodiment, and the present invention is herein Repeat no more.
It should be noted that in this manual, such as first and second or the like relational terms are used merely to one Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Cover including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include those Key element, but also other key elements including being not expressly set out, or also include for this process, method, article or set Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Also there is other identical element in the process including the key element, method, article or equipment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (8)

1. a kind of high voltage distribution box, it is characterised in that including controller, high-voltage positive electrode contactor, high voltage negative contactor, high pressure Pre-charge contactor, preliminary filling resistance, high voltage input terminal plug connector, high pressure part plug connector and high-voltage interlocking line, wherein:
The communication terminal of the controller is connected with vehicle communication network, the controller also respectively with the high-voltage positive electrode contactor Control end, the connection of the control end of the control end of the high voltage negative contactor and the high pressure pre-charge contactor, for connecing The control instruction that the vehicle communication network is sent is received, and according to the switch of the corresponding contactor of control instruction control;
The first end of the high-voltage positive electrode contactor and the first end of the high pressure pre-charge contactor positioned at high pressure by matching somebody with somebody The positive pole connection of high-voltage positive electrode input and battery bag on electric box, the second end of the high pressure pre-charge contactor passes through described Preliminary filling resistance is connected with the second end of the high-voltage positive electrode contactor, and its common port is by high-voltage power cathode line with being located at high pressure High-voltage positive electrode output end connection on block terminal;The first end of the high voltage negative contactor passes through on high voltage distribution box High voltage negative input and the negative pole of battery bag are connected, and the second end of the high voltage negative contactor passes through high voltage power supply negative line It is connected with the high voltage negative output end on high voltage distribution box;
The high-voltage interlocking line two ends are connected with the controller, and the high-voltage interlocking line is inserted midway through the high voltage input terminal Fitting, the high pressure part plug connector and high voltage power distribution lid switch, the controller are additionally operable at the high-voltage interlocking line When off-state, all contactors are controlled to disconnect.
2. high voltage distribution box as claimed in claim 1, it is characterised in that the high voltage distribution box also include filling soon contactor and Trickle charge contactor, wherein:
The control end for filling contactor soon and the control end of the trickle charge contactor are connected with the controller, described to fill soon The first end of contactor and the first end of the trickle charge contactor are connected with the high-voltage positive electrode input, described to fill contact soon Second end of device is connected with the direct current charge input on high voltage distribution box, and the second end of the trickle charge contactor is with being located at Exchanging trickle charge input connection on high voltage distribution box.
3. high voltage distribution box as claimed in claim 2, it is characterised in that the high voltage distribution box also includes total insurance and code insurance Danger, wherein:
Total insurance is arranged in the bus of the high-voltage power cathode line, and the code insurance is nearly being arranged on the high voltage power supply just On the separated time of polar curve.
4. high voltage distribution box as claimed in claim 3, it is characterised in that the high voltage distribution box also includes active discharge and contacted Device and active discharge insurance, the control end of the active discharge contactor are connected with the controller, the active discharge contact The first end of device is connected by active discharge insurance with the high voltage power supply negative line, and the of the active discharge contactor Two ends are connected with the second end of the pre-charge contactor.
5. high voltage distribution box as claimed in claim 4, it is characterised in that the controller also connects with the high-voltage positive electrode respectively The feedback of status end of tentaculum, the feedback of status end of the high voltage negative contactor, the high pressure pre-charge contactor state it is anti- The feedback of status end connection of feedback, the feedback of status end that contactor is filled soon and the trickle charge contactor, for obtaining institute respectively State high-voltage positive electrode contactor, the high voltage negative contactor, the high pressure pre-charge contactor, described fill contactor soon and described The on off state of trickle charge contactor, and the on off state of contactor is sent to the vehicle communication network.
6. high voltage distribution box as claimed in claim 5, it is characterised in that the block terminal also includes being arranged at the high-tension electricity High-voltage current sensor in the negative line of source, the high-voltage current sensor is connected with the controller, and the controller is also used In the high-tension current signal of the reception high-voltage current sensor collection, and the high-tension current signal is sent to the vehicle Communication network.
7. the high voltage distribution box as described in claim any one of 1-6, it is characterised in that the vehicle communication network is vehicle CAN network.
8. a kind of electric automobile, it is characterised in that including the high voltage distribution box as described in claim any one of 1-7.
CN201710464255.7A 2017-06-19 2017-06-19 A kind of electric automobile and high voltage distribution box Pending CN107284247A (en)

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CN108663628A (en) * 2018-04-02 2018-10-16 上汽大众汽车有限公司 A kind of high-tension battery packet Portable multifunctional tester
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Application publication date: 20171024