CN108891262A - A kind of high-voltage control circuit and high voltage control case - Google Patents
A kind of high-voltage control circuit and high voltage control case Download PDFInfo
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- CN108891262A CN108891262A CN201810682847.0A CN201810682847A CN108891262A CN 108891262 A CN108891262 A CN 108891262A CN 201810682847 A CN201810682847 A CN 201810682847A CN 108891262 A CN108891262 A CN 108891262A
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- 238000009434 installation Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 2
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Classifications
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a kind of high-voltage control circuits, including BMS master control, charging paths and discharge paths；One end of the charging paths and the discharge paths is connect with the positive DC end of power control system, and the anode of the other end and battery pack connects；The negative DC end of the power control system is connect with the cathode of the battery pack；The power control system is used to for electric main being converted into direct current and charges to the battery pack and the converting direct-current power into alternating-current power that battery pack exports is fed back to electric main or to load emergency service；The BMS master control is used to detect charging voltage, discharge voltage, charging current, discharge current and the temperature of the battery pack, and controls the charging paths, the on-off of discharge paths according to testing result.The present invention also provides a kind of high voltage control casees.
Description
Technical field
The present invention relates to technical field of energy storage, and in particular to a kind of high-voltage control circuit and high voltage control case.
Background technique
In recent years, traditional energy is non-renewable, and the problem of environmental pollution being on the rise, so that new energy skill
The development and application of art has obtained quick development, wherein power battery in terms of new-energy automobile using especially prominent.
High voltage control case is that the safe and reliable operation of power battery provides safeguard, and major function includes：There is provided safety can
By ground charging, electric discharge electric loop；The charging voltage discharge voltage of real-time monitoring battery pack, charging current, discharge current and
Electric loop running temperature；Accurately control the open or closed of each electric loop in time as needed.
Summary of the invention
The first purpose of this invention is intended to provide a kind of high-voltage control circuit, controls the charging and discharging of battery pack.
In order to realize the first purpose of this invention, this invention takes the following technical solutions：
A kind of high-voltage control circuit, including BMS master control, charging paths and discharge paths；Charging paths and described
One end of discharge paths is connect with the positive DC end of power control system, and the anode of the other end and battery pack connects；It is described
The negative DC end of power control system is connect with the cathode of the battery pack；The power control system include rectification circuit and
Inverter circuit；The rectification circuit is used to for electric main to be converted into direct current to charge to the battery pack；The inverter circuit is used
Electric main is fed back in the converting direct-current power into alternating-current power for exporting battery pack or to load emergency service；
The charging paths include charging diode and charge switch；The discharge paths include discharge diode and
Discharge switch；The BMS master control includes battery parameter detection module and control module；The charging diode anode with
The positive DC end of the power control system connects；The cathode of the cathode of the charging diode and the discharge diode connects
It connects；The anode of the discharge diode is connect with the anode of the battery pack；The charge switch and the discharge diode are simultaneously
Connection；The discharge switch is in parallel with the charging diode；The testing result output end of the battery parameter detection module with
The testing result input terminal of the control module connects；The charge control end of the control module is connect with the charge switch；
The discharge control terminal of the control module is connect with the discharge switch；The battery parameter detection module is described for detecting
Charging voltage, discharge voltage, charging current, discharge current and the temperature of battery pack；The control module is used for according to
The testing result of battery parameter detection module controls the on-off of the charge switch, discharge switch.
Further, the high-voltage control circuit further includes power module, third diode and the 5th switch；Described
The anode of three diodes is connect with the charge and discharge anode interface of the power control system, the anode of cathode and the power module
Signal input part connection；One end of 5th switch is connect with the anode of the battery pack, the other end and the power module
Positive signal input terminal connection；The negative signal input terminal of the power module and the negative DC of the power control system
The connection of the cathode of end and the battery pack；The positive signal output end of the power module and the anode of the BMS master control are believed
The connection of number input terminal, negative signal output end are connect with the negative signal input terminal of the BMS master control；The power module is used for
It powers to the BMS master control；The BMS master control control the described 5th switches on-off.
Further, the 5th switch is cold starting switch；The 6th switch is in series on the cold starting switch；It is described
The cold starting switch of series connection and the 6th switch ends connect DC voltage；The BMS master control and power supply control end with it is described
6th switch connection, switches on-off for controlling the described 6th；DC voltage effect when the described 6th closes the switch
At the both ends of the cold starting switch, it is closed the cold starting switch.
Further, the high-voltage control circuit further includes the 4th switch；One end of 4th switch and the third
The positive signal of the connection of the common end of the cathode of diode and the 5th switch, the other end and the power module inputs
End connection, or, one end and the negative DC end of the power control system of the 4th switch and bearing for the battery pack
The common end of pole connects, and the other end is connect with the negative signal input terminal of the power module；4th switch is for controlling
The power control system and battery pack output direct current supply electricity to the power module, or, the 4th switch is air
Switch, it is described 4th switch first port connect with the positive signal input terminal of the power module, second port with it is described
The negative signal input terminal of power module connects, positive and described 5th switch of third port and the third diode
Common end connection, the 4th port is connect with the cathode of the direct current negative pole end of the power control system and the battery pack；Institute
It states the 4th switch and supplies electricity to the power module for controlling the power control system and battery pack output direct current.
Further, the high-voltage control circuit further includes third switch；One end of the third switch and the electric discharge
The anode connection of diode, the other end are connect with the anode of the battery pack, or, one end of third switch and the power supply
The negative DC end of control system connects, and the other end is connect with the cathode of the battery pack, or, third switch is opened for air
It closes, the first port of the third switch is connect with the anode of the battery pack, and the cathode of second port and the battery pack connects
It connects, third port is connect with the anode of the discharge diode, the negative DC end of the 4th port and the power control system
Connection.
Further, the high-voltage control circuit further includes first fuse and/or second fuse；First fusing
Device is connected between the positive signal output end of the power module and the positive signal input terminal of the BMS master control；Described
Two fuses are connected between the negative signal output end of the power module and the negative signal input terminal of the BMS master control.
Further, the high-voltage control circuit further includes current divider；The current divider is connected on power supply control system
Between the negative DC end of system and the cathode of the battery pack, for detecting the charging current and electric discharge electricity of the battery pack
Stream；The current detecting result input terminal of the battery parameter detection module and the current detecting result output end of the current divider
Connection, for detecting the charging current and discharge current of the battery pack；The battery parameter detection module passes through described
The BMS of the communication interface of BMS master control and the battery pack is connected from control, for detecting charging voltage, the electric discharge of the battery pack
Voltage and temperature.
Second object of the present invention is intended to provide a kind of high voltage control case, controls the charging and discharging of battery case.
In order to realize second object of the present invention, this invention takes the following technical solutions：
A kind of high voltage control case, the high voltage control case use above-mentioned high-voltage control circuit；The high voltage control case includes
Cabinet, is arranged in the communication interface on the left of the cabinet front plate, the electricity being successively set on the right side of the cabinet front plate from left to right
Pond group anode interface, battery electrode interface, charge and discharge anode interface and charge and discharge cathode interface are arranged in the cabinet
Master control on the left of portion is arranged in the box house front left side, the power module on the right side of master control, is arranged on the power module top
The 4th switch, first fuse and second fuse on plate, are arranged on the right side of the box house forward right side, power module
Third switch, be arranged in the box house forward right side, third switch on the right side of charging diode and discharge diode, if
The charge switch and discharge switch on the right side of box house forward right side, charging diode and discharge diode are set, is arranged in case
Current divider on the right side of internal portion forward right side, charging diode and discharge diode D2, is arranged in the third of box house right lateral side
The box house left rear side, the connecting terminal on the right side of the BMS master control is arranged in diode；
The battery anode interface is used to connect the first port of the anode and third switch of battery pack；The battery pack
Cathode interface is used to connect the cathode of battery pack and the second port of third switch；The charge and discharge anode interface is for connecting electricity
The one end at the positive DC end of source control system and the anode of charging diode and discharge switch；The charge and discharge cathode interface
For connecting negative DC end and the current divider of power control system；The communication interface is for connecting BMS master control and battery case
In BMS from control, the battery parameter that the temperature, charging voltage and discharge voltage of battery pack are sent to BMS master control is acquired
Module.
The first fuse is arranged in parallel with second fuse；It is described 4th switch setting the first fuse with
The rear side of second fuse；The position of the third switch and the battery anode interface and the battery electrode interface
It is corresponding；The charging diode is arranged in parallel with the discharge diode along front-rear direction, and the charging diode is arranged
On front side of the discharge diode；The charge switch is arranged in parallel with the discharge switch along front-rear direction, and described puts
Electric switch is arranged on front side of charge switch, and the discharge switch is corresponding with the position of the charge and discharge anode interface；The shunting
Device is corresponding with the position of the charge and discharge cathode interface.
Further, third switch accommodating hole and the 4th switch accommodating hole are provided on the top plate of the cabinet；It is described
Grid hole is provided on the left side plate of cabinet；The third switch accommodating hole is used to make the operation handle dew of the third switch
Outside the cabinet；The 4th switch accommodating hole is used to that the operation handle of the 4th switch to be made to be exposed at outside the cabinet
Portion；The grid hole is for divulging information, radiating.
Further, the high voltage control case further includes the installation foot for being separately positioned on four apex angles in cabinet bottom side
Pad.
Beneficial effects of the present invention：
Electric main by power control system is converted into direct current and supplies electricity to battery pack filling by high-voltage control circuit of the invention
Electricity, the direct current standard exported when by power control system by battery power discharge change alternating current into and feed back to electric main or to negative
Lotus emergency service detects charging current, charging voltage, charging current, discharge current and the temperature of battery pack by BMS master control
Degree, and then control charging paths, the on-off of discharge paths.Further, high-voltage control circuit of the invention is controlled by power supply
System and battery pack are powered to BMS master control, compared to only being powered by power control system or battery pack to BMS master control, are reduced
The risk of the improper power-off of BMS master control.Further, high-voltage control circuit of the invention by power control system just
It connects between pole DC terminal and the positive signal input terminal of power module third diode, only allows electric current from power control system
Power module is flowed to, power module will not export electric current to power control system.Further, high-voltage control circuit of the invention
By the on-off between the 4th switch control power control system and battery pack and power module, when BMS master control does not work,
The 4th switch can be cut off, electric energy is saved.Further, high-voltage control circuit of the invention passes through the power supply control of third switch control
The on-off of system and battery pack processed can cut off third switch when battery pack does not need charge and discharge, easy to operate.Further
Ground, high voltage control case of the invention are rationally distributed.Further, high voltage control case of the invention in box roof by being arranged
Third switchs accommodating hole and the 4th switch accommodating hole, makes the operation handle dew of third switch and the 4th switch outside the enclosure
Portion, operator can control third switch under conditions of not dismantling high voltage control case and the 4th switch on-off, operation side
Just.Further, high voltage control case of the invention is by being arranged grid hole on cabinet left side plate, convenient for ventilation, heat dissipation.Into
One step, installation foot pad is respectively set by four vertex in cabinet bottom side in high voltage control case of the invention, and being convenient for will be high
Press control cabinet installation on the cabinet.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, simple Jie is done to attached drawing needed in the embodiment below
It continues.The accompanying drawings in the following description is only that the embodiment in the present invention is not being paid for those of ordinary skill in the art
Out under the premise of creative work, it can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is the electrical connection diagram of high-voltage control circuit of the present invention；
Fig. 2 be the present invention the 5th switch be cold starting switch when, the 5th schematic diagram for closing the switch or disconnecting；
Fig. 3 is the whole installation diagram of high voltage control case of the present invention；
Fig. 4 is the layout inside high voltage control box body of the present invention；
Fig. 5 is the installation diagram that high voltage control case of the present invention lays down inside after top plate
Specific embodiment
With reference to the accompanying drawing, the present invention will be described in detail.
In order to which the purpose of the present invention, technical solution, advantage is more clearly understood, with reference to the accompanying drawings and embodiments to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
As shown in Figure 1, a kind of high-voltage control circuit includes BMS master control, power module, current divider, fuse, two poles of charging
Pipe D1, discharge diode D2, third diode D3, charge switch K1, discharge switch K2, third switch K3, the 4th switch K4,
Five switch K5.
In the present embodiment, charge switch K1 and discharge switch K2 is relay；Third switch K3 and the 4th switch K4
For air switch.
As shown in Figure 1, third switch K3 includes first port 31, second port 32, third port 33 and the 4th port
34；4th switch K4 includes first port 41, second port 42, third port 43 and the 4th port 44.Third switch K3 is closed
When conjunction, the first port K31 of third switch K3 is connected with third port K33, the second port K32 of third switch K3 and the 4th end
Mouth K34 conducting.When 4th switch K4 is closed, the first port 41 and third port 43 of the 4th switch K4 is connected, the 4th switch K4
Second port 42 and the 4th port 44 be connected.
As shown in Figure 1, the first exchange end 11 of power control system PCS connects electric main, the second exchange end 12 connects load,
Positive DC end 13 is connect with the anode of charging diode D1, and negative DC end 14 is connect with one end of current divider RS.Charging two
The cathode of pole pipe D1 is connect with the cathode of discharge diode D2, the third port of the anode and third switch K3 of discharge diode D2
33 connections.The other end of current divider RS is connect with the 4th port 34 of third switch K3.The first port 31 of third switch K3 with
The anode connection of battery pack B, the second port 32 of third switch K3 are connect with the cathode of battery pack B.Charge switch K1 and electric discharge
Diode D2 is in parallel.Discharge switch K2 is in parallel with charging diode D1.The charge control end of BMS master control and charge switch K1 connect
It connects, for controlling the on-off of charge switch K1；The discharge control terminal of BMS master control is connect with discharge switch K2, for controlling electric discharge
The on-off of switch K2.
In the present embodiment, charging diode D1 and charge switch K1 forms charging paths, discharge diode D2 and electric discharge
Switch K2 forms discharge paths；Electric main is converted into direct current electricity output to charging paths, then by charging by power control system
Branch charges to battery pack；Discharge paths receive the direct current of battery pack output, and the direct current that battery pack exports is sent to electricity
Source control system feeds back to electric main or powers to load by power control system by converting direct-current power into alternating-current power.
In the present embodiment, power control system PCS includes rectification circuit and inverter circuit；Rectification circuit will be for that will exchange
Electricity becomes direct current, and inverter circuit is used to the battery pack B direct current exported becoming alternating current；Rectification circuit passes through the first exchange
End 11 receives electric main, exports direct current by positive DC end 13 and negative DC end 14 and supplies electricity to battery pack B charging；Inversion electricity
Road receives the direct current of battery pack B output by positive DC 13 and negative DC end 14, will be exchanged by the first 11 ends of exchange
Electricity feeds back to electric main, and electric main is sent to load by the second exchange end 12, in electric main power-off, gives load
Emergency service is provided.
In the present embodiment, the principle that electric main charges to battery pack B is as follows：BMS master control control charge switch K1 is led
Logical, discharge switch K2 is disconnected；Due to the one-way conduction characteristic of diode, the charging of charging diode D1 and charge switch K1 composition
The discharge paths of branch conducting, discharge diode D2 and discharge switch K2 composition disconnect；Third switch K3 closure, charging paths with
The anode conducting of battery pack B, current divider RS are connected with the cathode of battery case B, power control system PCS, charging diode D1, fill
Electric switch K1, current divider RS, third switch K3 and battery pack B form charge circuit；Power control system PCS receives exchange city
Electric main is converted into direct current, and is charged by charge circuit to battery pack B by electricity.
In the present embodiment, the principle of battery power discharge is as follows：BMS master control controls discharge switch K2 conducting, charge switch
K1 is disconnected；Due to the one-way conduction characteristic of diode, discharge diode D2 is connected with the discharge switch K2 discharge paths formed, fills
The charging paths of electric diode D1 and charge switch K1 composition disconnect；Third switch K3 closure, discharge paths and battery pack B are just
Pole conducting, current divider RS are connected with the cathode of battery case B, and power control system, discharge switch K2, shunts discharge diode D2
Device RS, third switch K3 and battery pack B form discharge loop；Direct current is sent to power supply by discharge loop by battery pack B
Control system PCS, the converting direct-current power into alternating-current power for being exported battery pack B by power control system PCS, feeds back to electric main
Or it powers to load.
In the present embodiment, BMS master control includes battery parameter detection module and control module；Battery parameter detection
Module is connected by the BMS of communication interface and battery pack B from control, for detect the charging voltage of battery pack B, discharge voltage and
Temperature；The current detecting result input terminal of battery parameter detection module and the current detecting result output end of current divider RS connect
It connects, for detecting the charging current and discharge current of battery pack；The testing result output end of battery parameter detection module with
The testing result input terminal of control module connects.When control module receive it is that battery parameter detection module detects the result is that
When filling an overtension or charging current overcurrent or excessively high/too low charging temperature of battery pack, the charge control of control module
End sends control signal and charge switch K1, control charge switch K1 is given to disconnect, and power control system PCS stops filling to battery pack B
Electricity；When control module receive it is that battery parameter detection module detects the result is that the discharge voltage of battery pack it is too low or electric discharge
When electric current overcurrent or excessively high/too low discharge temp, the discharge control terminal of control module is sent to control signal to discharge switch
K2, control discharge switch K2 are disconnected, and battery pack B stops output direct current and supplies electricity to power control system PCS.
As shown in Figure 1, the anode of third diode D3 is connect with the positive DC end 3 of power control system PCS, the three or two
The cathode of grade pipe D3 is connect with the third port 3 of the 4th switch K4.The 4th port 4 of 4th switch K4 and current divider RS and third
The common end of switch K3 connects, and the first port 1 of the 4th switch K4 is connect with the positive signal input terminal 21 of power module P, the
Two-port netwerk 2 is connect with 2 input terminal 22 of negative signal of power module P.One end of 5th switch K5 and the third of third switch K3
Port 33 connects, and the other end is connect with the third port 43 of the 4th switch K4.The positive signal output end 23 of power module P and
One end of one fuse FU1 connects, and the other end of first fuse FU1 is connect with the positive signal input terminal of BMS master control.Power supply
The negative signal output end 24 of module P is connect with one end of second fuse FU2, the other end of second fuse FU2 and BMS master
The negative signal input terminal of control connects.
In the present embodiment, third diode D3 is for only allowing power control system PCS to export electric current to power module
P, power module P will not.In other embodiments, high-voltage control circuit further includes the 4th diode, the 4th diode and the 5th
Switch K5 series connection only allows battery pack B to export electric current and power module P, power module P is given not to export electric current and give battery pack B.
In the present embodiment, the principle that electric main is powered to BMS master control is as follows：4th switch K4 closure, power module P
Positive signal input terminal 23 be connected with the cathode of third diode D3, the negative signal input terminal 24 of power module P and shunt
The common end of the 4th port 44 of device RS and the 4th switch K4 is connected, and power control system PCS, third diode D3, the 4th open
It closes K4, power module P and current divider RS and forms electric main current supply circuit；Power control system PCS receives electric main, will
Electric main is converted into direct current, and exports direct current by electric main current supply circuit and supply electricity to power module P, and by power module
Steady dc voltage is exported to power to BMS master control.
In the present embodiment, the principle that battery pack B powers to BMS master control is as follows：Third switch K3, the 4th switch K4 and
5th switch K5 closure, the positive signal input terminal 23 of power module P and the anode of battery pack B are connected, the cathode of power module P
Signal input part 24 is connected with the cathode of battery case B, battery pack B, third switch K3, the 4th switch K4 and power module P group
At battery-powered circuit；Battery pack B output direct current supply electricity to power module P, by power module P export steady dc voltage to
BMS master control power supply.
In the present embodiment, it while electric main charges to battery pack, is given by electric main current supply circuit to BMS master
Control power supply；While battery power discharge, powered by battery-powered circuit to BMS main control module；Electric main and battery pack
It can power to BMS master control, reduce the risk of the improper power-off of BMS master control.
In the present embodiment, when being more than a certain range by the electric current of BMS master control, first fuse FU1 and/or second
Fuse FU2 is blown, and is powered so that power module P stopping exports DC voltage to BMS master control, is reduced high current and is damaged BMS master
The risk of control.
In the present embodiment, when BMS master control does not work, by disconnecting the 4th switch K4, power control system can be made
PCS and battery pack B stops powering to power module, saves electric energy.
In the present embodiment, when battery pack B stops charge or discharge, by disconnecting third switch K3, can directly make
Power control system PCS stops charging to battery pack B or battery pack B stops electric discharge, operates easier.
As shown in Figure 1, the 5th switch K5 is cold starting switch.As shown in Fig. 2, the 5th switch K5 and the 6th switch K6 goes here and there
Connection；The concatenated two terminations 24V DC voltage of 5th switch K5 and the 6th switch K6.The battery-powered control terminal of BMS master control with
6th switch K6 connection, for controlling the on-off of the 6th switch K6.
In the present embodiment, the principle of the 5th switch K5 closure is：The power supply control end of BMS master control send control signal to
6th switch, control the 6th switch K6 closure, 24V DC voltage is applied to the both ends of the 5th switch K5, and then makes the 5th switch
K5 closure.5th switch K5 disconnect principle be：The power supply control end of BMS master control sends control signal to the 6th switch K6, control
The 6th switch K6 disconnection is made, the both ends of the 5th switch K5 do not have the effect of 24V DC voltage, and then disconnect the 5th switch K5.
Such as Fig. 3, shown in 4,5, a kind of high voltage control case includes cabinet, and the cold start-up interface of cabinet front plate upper left side is arranged in
COLD-START is arranged in the communication interface COM of cabinet front plate lower left side, is successively set on the right side of cabinet front plate from left to right
Battery anode interface BAT+, battery electrode interface BAT-, charge and discharge anode interface CHR+ and charge and discharge cathode interface
The BMS master control on the left of box house is arranged in CHR-, and box house front left side, the power module P on the right side of BMS master control is arranged in,
The 4th switch K4, first fuse FU1 and second fuse FU2 on power module P top plate are set, are arranged in cabinet
Box house forward right side, the charging on the right side of third switch K3 is arranged in third switch K3 on the right side of portion's forward right side, power module P
Diode D1 and discharge diode D2 is arranged on the right side of box house forward right side, charging diode D1 and discharge diode D2
Charge switch K1 and discharge switch K2, setting is right in box house forward right side, charging diode D1 and discharge diode D2
The third diode D3 of box house right lateral side is arranged in the current divider RS of side.
As shown in figure 3, battery anode interface BAT+ is used to connect the first end of the anode and third switch K3 of battery pack B
Mouth 31；Battery electrode interface BAT+ is used to connect the cathode of battery pack B and the second port 32 of third switch K3；Charge and discharge are just
It is opened with the anode of charging diode D2 and electric discharge at the positive DC end 13 that pole interface CHR+ is used to connect power control system PCS
Close one end of K2；Charge and discharge cathode interface CHR- is used to connect negative DC end 14 and the current divider RS of power control system PCS；
Communication interface COM is used to connect the BMS in BMS master control and battery case B from control, by the temperature of battery pack B, charging voltage and puts
Piezoelectric voltage is sent to the battery parameter acquisition module of BMS master control.
As shown in figure 4, first fuse FU1 is arranged in parallel with second fuse FU2；4th switch K4 setting is molten first
The rear side of disconnected device FU1 and second fuse FU2；Third switch K3 and battery anode interface BAT+ and battery electrode interface
The position BAT- is corresponding；Charging diode D1 and discharge diode D2 is arranged in parallel along front-rear direction, and charging diode D1 is set
It sets on front side of discharge diode D2；Charge switch K1 and discharge switch K2 is arranged in parallel along front-rear direction, and discharge switch K2
It is arranged on front side of charge switch K1, discharge switch K1 is corresponding with the position of charge and discharge anode interface CHR+；Current divider and charge and discharge
The position of cathode interface CHR- is corresponding.
In the present embodiment, cold starting switch accesses high voltage control case by cold starting switch interface COLD-START.
Such as Fig. 4, shown in 5, in the present embodiment, high voltage control case further includes being arranged in box house left rear side, BMS master control
The connecting terminal on right side, connecting terminal is for keeping the layout inside high voltage control case more reasonable.
In the present embodiment, it is electrically connected inside high-tension battery case using thick big copper bar, facilitates connection and installation, prevented
Only poor contact guarantees high current and reduces temperature rise.
Such as Fig. 3, shown in 5, in the present embodiment, it is provided with heat release hole on cabinet left side plate, convenient for ventilation and heat dissipation；It is high
Four vertex of voltage-controlled box body bottom side processed are provided with installation foot pad, convenient for by the installation of high voltage control case on the cabinet.?
In the present embodiment, power control system, high voltage control case and battery case are encapsulated in a cabinet body.
As shown in figure 3, being provided with third switch accommodating hole and the 4th switch accommodating hole in box roof.Third switch K3
It is all exposed at outside cabinet with the operation handle of the 4th switch K4, operator is without opening cabinet, and portion can control outside the enclosure
The on-off of third switch K3 and the 4th switch K4, and then control charge circuit, discharge loop, battery case current supply circuit and exchange
The on-off in mains-supplied circuit.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of high-voltage control circuit, including BMS master control, charging paths and discharge paths；It the charging paths and described puts
One end of electric branch is connect with the positive DC end of power control system, and the anode of the other end and battery pack connects；The electricity
The negative DC end of source control system is connect with the cathode of the battery pack；The power control system includes rectification circuit and inverse
Power transformation road；The rectification circuit is used to for electric main to be converted into direct current to charge to the battery pack；The inverter circuit is used for
The converting direct-current power into alternating-current power that battery pack exports is fed back into electric main or to load emergency service；
It is characterized in that：The charging paths include charging diode and charge switch；The discharge paths include electric discharge two
Pole pipe and discharge switch；The BMS master control includes battery parameter detection module and control module；The charging diode
Anode connect with the positive DC end of the power control system；The cathode of the charging diode and the discharge diode
Cathode connection；The anode of the discharge diode is connect with the anode of the battery pack；The charge switch and the electric discharge
Diodes in parallel；The discharge switch is in parallel with the charging diode；The testing result of the battery parameter detection module
Output end is connect with the testing result input terminal of the control module；It is opened with the charging at the charge control end of the control module
Connection connects；The discharge control terminal of the control module is connect with the discharge switch；The battery parameter detection module is used for
Detect charging voltage, discharge voltage, charging current, discharge current and the temperature of the battery pack；The control module is used for
The on-off of the charge switch, discharge switch is controlled according to the testing result of the battery parameter detection module.
2. high-voltage control circuit according to claim 1, it is characterised in that：Further include power module, third diode with
And the 5th switch；The third diode anode connect with the charge and discharge anode interface of the power control system, cathode and
The positive signal input terminal of the power module connects；One end of 5th switch is connect with the anode of the battery pack, separately
One end is connect with the positive signal input terminal of the power module；The negative signal input terminal and the power supply of the power module
The negative DC end of control system and the cathode connection of the battery pack；The positive signal output end of the power module and institute
State the positive signal input terminal connection of BMS master control, the negative signal input terminal company of negative signal output end and the BMS master control
It connects；The power module is used to power to the BMS master control；The BMS master control control the described 5th switches on-off.
3. high-voltage control circuit according to claim 2, it is characterised in that：5th switch is cold starting switch；Institute
It states and is in series with the 6th switch on cold starting switch；The cold starting switch of the series connection and the 6th switch ends connect direct current
Pressure；The power supply control end of the BMS master control and the 6th switch connect, and switch on-off for controlling the described 6th；It is described
DC voltage acts on the both ends of the cold starting switch when the described 6th closes the switch, and is closed the cold starting switch.
4. high-voltage control circuit according to claim 3, it is characterised in that：It further include the 4th switch；4th switch
One end and the third diode cathode and the 5th switch common end connection, the other end and the power supply mould
The positive signal input terminal of block connects, or, one end of the 4th switch and the negative DC end of the power control system with
And the common end connection of the cathode of the battery pack, the other end are connect with the negative signal input terminal of the power module；It is described
4th switch supplies electricity to the power module for controlling the power control system and battery pack output direct current, or, institute
Stating the 4th switch is air switch, and the first port of the 4th switch and the positive signal input terminal of the power module connect
It connects, second port is connect with the negative signal input terminal of the power module, the anode of third port and the third diode
And the common end connection of the 5th switch, the direct current negative pole end and the electricity of the 4th port and the power control system
The cathode of pond group connects；4th switch is supplied electricity to for controlling the power control system and battery pack output direct current
The power module.
5. high-voltage control circuit according to claim 4, it is characterised in that：It further include third switch K3；The third is opened
One end of pass is connect with the anode of the discharge diode, and the other end is connect with the anode of the battery pack, or, the third is opened
One end of pass is connect with the negative DC end of the power control system, and the other end is connect with the cathode of the battery pack, or, institute
Stating third switch is air switch, and the first port of third switch is connect with the anode of the battery pack, second port and
The cathode of the battery pack connects, and third port is connect with the anode of the discharge diode, the 4th port and the power supply control
The negative DC end of system processed connects.
6. high-voltage control circuit according to claim 5, it is characterised in that：It further include current divider；The current divider series connection
Between the negative DC end of the power control system and the cathode of the battery pack, for detecting the charging of the battery pack
Electric current and discharge current；The current detecting result input terminal of the battery parameter detection module and the electric current of the current divider
Testing result output end connection, for detecting the charging current and discharge current of the battery pack；The battery parameter inspection
It surveys module to connect by the communication interface of the BMS master control and the BMS of the battery pack from control, for detecting the battery pack
Charging voltage, discharge voltage and temperature.
7. high-voltage control circuit according to claim 6, it is characterised in that：It further include that first fuse and/or second are molten
Disconnected device；The first fuse is connected on the positive signal output end of the power module and the positive signal of the BMS master control
Between input terminal；The second fuse is connected on the negative signal output end of the power module and bearing for the BMS master control
Between the signal input part of pole.
8. a kind of high voltage control case, it is characterised in that：Using high-voltage control circuit as claimed in claim 7；The high voltage control
Case includes cabinet, and the cold start-up interface of the cabinet front plate upper left side is arranged in, and the logical of the cabinet front plate lower left side is arranged in
Believe interface, battery anode interface, the battery electrode interface, charge and discharge being successively set on the right side of the cabinet front plate from left to right
The master control on the left of the box house is arranged in electric anode interface and charge and discharge cathode interface, is arranged in the box house
The 4th switch on the power module top plate, first fuse and the is arranged in power module on the right side of front left side, master control
Two fuses, are arranged in the box house forward right side, the third switch on the right side of power module, and setting is right in the box house
Front side, third switch right side charging diode and discharge diode, setting box house forward right side, charging diode and
Charge switch and discharge switch on the right side of discharge diode, setting is in box house forward right side, charging diode and electric discharge two
Current divider on the right side of pole pipe D2, is arranged in the third diode of box house right lateral side, setting the box house left rear side,
Connecting terminal on the right side of the BMS master control；
The battery anode interface is used to connect the first port of the anode and third switch of battery pack；The battery electrode
Interface is used to connect the cathode of battery pack and the second port of third switch；The charge and discharge anode interface is for connecting power supply control
The one end at the positive DC end of system processed and the anode of charging diode and discharge switch；The charge and discharge cathode interface is used for
Connect negative DC end and the current divider of power control system；The communication interface is for connecting in BMS master control and battery case
The temperature, charging voltage and discharge voltage of battery pack are sent to the battery parameter acquisition module of BMS master control from control by BMS.
The first fuse is arranged in parallel with second fuse；4th switch is arranged in the first fuse and second
The rear side of fuse；The position pair of the third switch and the battery anode interface and the battery electrode interface
It answers；The charging diode is arranged in parallel with the discharge diode along front-rear direction, and charging diode setting exists
On front side of the discharge diode；The charge switch is arranged in parallel with the discharge switch along front-rear direction, and the electric discharge
Switch is arranged on front side of charge switch, and the discharge switch is corresponding with the position of the charge and discharge anode interface；The current divider
It is corresponding with the position of the charge and discharge cathode interface.
9. high voltage control case according to claim 8, it is characterised in that：Third switch is provided on the top plate of the cabinet
Accommodating hole and the 4th switch accommodating hole；Grid hole is provided on the left side plate of the cabinet；The third switchs accommodating hole
For being exposed at the operation handle of the third switch outside the cabinet；The 4th switch accommodating hole is for making the described 4th
The operation handle of switch is exposed at outside the cabinet；The grid hole is for divulging information, radiating.
10. high voltage control case according to claim 8, it is characterised in that：It further include being separately positioned on the cabinet bottom side
The installation foot pad of four apex angles.
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| CN201810682847.0A CN108891262A (en) | 2018-06-27 | 2018-06-27 | A kind of high-voltage control circuit and high voltage control case |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810682847.0A CN108891262A (en) | 2018-06-27 | 2018-06-27 | A kind of high-voltage control circuit and high voltage control case |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810682847.0A Pending CN108891262A (en) | 2018-06-27 | 2018-06-27 | A kind of high-voltage control circuit and high voltage control case |
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