CN208585115U - A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive - Google Patents
A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive Download PDFInfo
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- CN208585115U CN208585115U CN201820985388.9U CN201820985388U CN208585115U CN 208585115 U CN208585115 U CN 208585115U CN 201820985388 U CN201820985388 U CN 201820985388U CN 208585115 U CN208585115 U CN 208585115U
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- main control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model relates to the battery-powered technical fields of tractor, more particularly to a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive, the system includes battery unit, supplying cell and BMS main control chip, it is characterized in that, the battery unit passes sequentially through the normal open switch of the first DC relay and DC-DC converter is connected with supplying cell, the anode of the supplying cell is connected with the power supply end of one end of the first DC relay and BMS main control chip respectively by switch module, the cathode of the supplying cell is connected with the inside and outside stagnation pressure negative terminal of the other end of the first DC relay and BMS main control chip respectively.The utility model carries out the technical issues of BMS main control chip that self-powered is able to solve in current tractor battery pack needs external power supply using self-powered circuit.
Description
Technical field
The utility model relates to the battery-powered technical fields of tractor, and in particular to one kind is exclusively used in shield electric traction
The lithium battery high voltage system of locomotive.
Background technique
With the enhancing of people's environmental consciousness and wideling popularize for lithium battery, lithium battery obtains extensively on electric car
Application, safety and reliability is widely recognized.The features such as due to lithium battery energy density height and fast charging time, by
It is gradually applied on locomotive, but since electric traction vehicle electric is big, and it is limited to store electricity, while the short equal spies of vehicle dwell time
Property, therefore lithium battery needs system monitoring and management, needs to control battery unit using high pressure.This just needs to design one
High voltage control principle is covered to be managed.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery high voltage controls for being exclusively used in shield electric traction locomotive
System carries out the BMS main control chip that self-powered is able to solve in current tractor battery pack using self-powered circuit and needs outside
The technical issues of power supply.
In order to reach above-mentioned technical purpose, technical solution used by the utility model is as follows:
A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive, the system include battery unit, supply
Battery and BMS main control chip, which is characterized in that the battery unit pass sequentially through the first DC relay normal open switch and
DC-DC converter is connected with supplying cell, the anode of the supplying cell by switch module respectively with the first DC relay
One end is connected with the power supply end of BMS main control chip, and the cathode of the supplying cell is another with the first DC relay respectively
End is connected with the inside and outside stagnation pressure negative terminal of BMS main control chip.
Further, the switch module includes manual switch, and with the concatenated self-lock switch branch of manual switch；It is described
Self-lock switch branch includes the normal open switch of point driving switch and the 2nd DC relay parallel with one another, the 2nd DC relay
One end is connected with the first data terminal of BMS main control chip, and the other end is connected with the inside and outside stagnation pressure negative terminal of BMS main control chip.
Further, the diode of forward conduction is equipped between the DC-DC converter and supplying cell.
Further, the electric discharge positive wire that the anode of the battery unit is drawn is connected by discharge switch protective module
Discharge positive port, the discharge switch protective module be by after the series connection of the normal open switch of protective resistance and preliminary filling relay again with
Discharge switch composes in parallel, and one end of the preliminary filling relay is connected with the third data terminal of BMS main control chip, the other end with
The inside and outside stagnation pressure negative terminal of BMS main control chip is connected.
Further, heating film is equipped in the battery unit, one end of the heating film passes through the normally opened of heating relay
Switch is connected with the charging anode of battery unit, and the other end of heating film is connected with the cathode of battery unit, the heating relay
One end of device is connected with the 5th data terminal of BMS main control chip, and the other end is connected with the inside and outside stagnation pressure negative terminal of BMS main control chip.
Further, the BMS main control chip is connected with current sensor, and the current sensor is set to the battery list
On the positive wire of member.
Further, the anode of the battery unit passes sequentially through fuse and charge switch is connected with charging socket.
The utility model has the following beneficial effects:
1, the utility model passes through DC-DC converter to supplying cell using the anode of battery unit as voltage input end
It carries out mending electricity, can be realized and BMS main control chip is powered by battery pack itself.
2, the discharge switch protective module of the utility model can prevent instantaneous high pressure when cell discharge to load
Cause different degrees of damage.
3, the current sensor of the utility model can incude corresponding electric current, and induced current is transferred to BMS master control
Chip is shown electricity by display module after carrying out corresponding data processing.
4, the heating relay that the cell internal of the utility model is equipped with heating film and is connected with heating film, in electricity
When the temperature of pool unit is too low, battery unit can be heated by heating film, and then reach the temperature of charging.
5, the power supply of the utility model is battery pack self-contained electric system, that is to say, that the utility model is to utilize to have battery
Group is powered management system itself.The structure and principle and electricity of the battery management system BMS main control chip of the utility model
Electrical automobile is different, and what the battery management system BMS in the lithium battery power device used on electric car at present was used is outer
Power supply power supply starting is set, battery management system BMS used in electric car powers using vehicle-mounted plumbic acid 12V.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the utility model；
Fig. 2 is the circuit block diagram of specific embodiment of the utility model；
Fig. 3 is the circuit diagram of specific embodiment of the utility model；
Fig. 4 is the circuit diagram of the embodiment equipped with heating film of the utility model.
Specific embodiment
The utility model is described in detail below by specific embodiment combination attached drawing, it should be noted that do not conflicting
In the case where, the feature in the embodiments of the present invention and embodiment can be combined with each other, the protection model of the utility model
It encloses and is not limited to this.
In order to better illustrate the utility model, the present embodiment is applicable to be converted to the 600V cathode voltage of battery unit
Illustrate for the 24V voltage of BMS main control chip.
As shown in Figure 1, a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive, which includes electricity
Pool unit, supplying cell and BMS main control chip, the battery unit pass sequentially through the normal open switch K3 ' of the first DC relay K3
Be connected with DC-DC converter with supplying cell, the anode of the supplying cell by switch module respectively with the first DC relay
One end be connected with the power supply end a of BMS main control chip, the cathode of the supplying cell is another with the first DC relay respectively
One end is connected with the inside and outside stagnation pressure negative terminal g of BMS main control chip.
As shown in Figure 1, 2, specifically, being divided into three tunnels by the positive wire that the anode of the battery unit is drawn, all the way
The electric positive wire of charging positive wire, all the way electric discharge positive wire and all the way benefit.The electric positive wire of the benefit is as voltage input
End is connected by the normal open switch K3 ' of the first DC relay K3 with the voltage input end of DC-DC converter.By the battery unit
The cathode conductor drawn of cathode be connected with the ground terminal of DC-DC converter.The voltage output end of the DC-DC converter and
Ground terminal is corresponding to be connected with the anode and cathode of supplying cell.The high pressure that battery unit is exported is converted by DC-DC converter
To be that BMS main control chip is powered after suitable voltage.Preferably, model LDBC54B can be selected in the BMS main control chip.
The anode of the supplying cell is electric with the power supply of one end of the first DC relay K3 and BMS main control chip respectively by switch module
Source a is connected, the cathode of the supplying cell inside and outside stagnation pressure with the other end of the first DC relay and BMS main control chip respectively
Negative terminal g is connected.That is, the on-off of the switch module directly decides whether the first DC relay K3 is connected, first
After DC relay K3 conducting triggering its normal open switch K3 ' closure, the input voltage of voltage input end is converted by DC-DC converter
Output is to supplying cell after suitable voltage；Simultaneously the switch module on-off also directly decide supplying cell whether be
The power supply of BMS main control chip.Preferably, the switch module is equipped with manual switch K1, and concatenated self-locking with manual switch K1
Switching branches；The self-lock switch branch includes the normal open switch K4 of point driving switch K2 and the 2nd DC relay parallel with one another.
One end of the 2nd DC relay is connected with the first data terminal b of BMS main control chip, and the other end is interior with BMS main control chip
Outer stagnation pressure negative terminal g is connected.After manual switch K1 and point driving switch K2 are triggered, the first DC relay K3 conducting is powered, after
And be attracted its normal open switch K3 ' closure, at this time DC-DC converter the high pressure of voltage input end can be converted to suitable voltage to
Supplying cell mends electricity, and supplying cell is the power supply of BMS main control chip in turn.Point driving switch K2 breaks after closure trigger circuit conducting
It opens, while BMS main control chip controls the conducting of the 2nd DC relay, the normal open switch K4 closure and point driving switch of the 2nd DC relay
K2 constitutes latching circuit, and then forms the access that the high pressure of battery unit is converted to suitable voltage.
As shown in Figure 2, it is preferred that connect one between the voltage output end of DC-DC converter and the anode of supplying cell
The diode D1 of a forward conduction.High current damages diode in order to prevent, can use two or more diodes in parallel
Mode shunted.
As shown in Figure 2, it is preferred that one end of switch module is connected with supplying cell, the other end of the switch module with
Bridging has LED light emitting diode between the cathode of supplying cell, that is to say, that the LED light-emitting diodes after switch module conducting
Pipe can shine the state for indicating whether the switch module is on.
As shown in Figure 3, it is preferred that the electric discharge positive wire passes through discharge switch protective module connection electric discharge positive terminal
Mouthful, the discharge switch protective module is by opening again with electric discharge after the normal open switch K6 of protective resistance R0 and preliminary filling relay series connection
Pass composes in parallel, and one end of the preliminary filling relay is connected with the third data terminal d of BMS main control chip, the other end and BMS master control
The inside and outside stagnation pressure negative terminal g of chip is connected.In conjunction with attached drawing 3 it is found that the discharge switch is the normal open switch of the first electric discharge relay
One end of K5, the first electric discharge relay are connected with the second data terminal c of BMS main control chip, the other end and BMS main control chip
Inside and outside stagnation pressure negative terminal g be connected.When needing to discharge, BMS main control chip controls the first electric discharge relay and preliminary filling relay simultaneously
The normal open switch K6 closure of normal open switch K5 and preliminary filling relay that device is connected and then triggers the first electric discharge relay are discharged.
It preferably, can also be by the electric discharge relay of normal open switch K5 and second of the first electric discharge relay in order to further shunt
Normal open switch K7 carries out parallel connection, and one end of the second electric discharge relay is connected with the 4th data terminal e of BMS main control chip, separately
Whether one end is connected with the inside and outside stagnation pressure negative terminal g of BMS main control chip, be connected by BMS main control chip control the second electric discharge relay.
The outer stagnation pressure anode m of BMS main control chip is connected with electric discharge anode, prevents the first electric discharge relay or the second electric discharge relay
Adhesion.
During practical operation, it is first closed manual switch K1 when locomotive is started or charged, then presses crawl and opens
It closes K2 about 3S, the normal open switch K3 ' of the first DC relay K3 and the normal open switch K4 of the 2nd DC relay to be closed, supplying cell connects
Opening up the beginning is that BMS main control chip powers on, while DC-DC converter starts to work and persistently powers to supplying cell, at this time battery
Unit is in work state to be set；Upon discharging, the normal open switch K5 closure of the first electric discharge relay, battery unit start to put
Electricity.
As shown in Figure 4, it is preferred that heating film R1 is equipped in battery unit, one end of the heating film R1 passes through heating
The normal open switch K8 of relay is connected with the charging anode of battery unit, the cathode phase of the other end and battery unit of heating film R1
Even, one end of the heating relay is connected with the 5th data terminal f of BMS main control chip, and the other end is interior with BMS main control chip
Outer stagnation pressure negative terminal g is connected, and controls whether heating relay is connected by BMS main control chip.The heating film R1 can use resistance
Silk.When needing to charge, when BMS main control chip detects the temperature of battery lower than normal working temperature, such as less than zero degree
When, BMS main control chip can control heating relay conducting triggering its normal open switch K8 closure, and then using heating film to battery list
Member is heated to reach the normal working temperature of battery unit.
During practical operation, it is first closed manual switch K1 when locomotive is started or charged, then presses crawl and opens
It closes K2 about 3S, the normal open switch K3 ' of the first DC relay K3 and the normal open switch K4 of the 2nd DC relay to be closed, supplying cell connects
Opening up the beginning is that BMS main control chip powers on, while DC-DC converter starts to work and persistently powers to supplying cell, at this time battery
Unit is in work state to be set；Upon discharging, the first electric discharge relay closure, battery unit starts to discharge, but is charging
When need advanced trip temperature to detect, when the temperature of internal battery pack is lower than 0 DEG C, charging pile first gives heating film in battery pack to carry out
For electric heating, when heating temperature reaches 5 DEG C, charging pile starts to charge the battery.
As shown in figure 3 or 4, it is preferred that the BMS main control chip is connected with current sensor, and the current sensor is set
It is placed on the positive wire of the battery unit.The current sensor is used to detect the electric current on the positive wire, BMS master control core
The electric current that piece will test is converted to electricity after its inter-process and is shown on a display screen.The BMS main control chip
Inter-process mode be general processing mode, such as estimated using common SOC to judge the remaining capacity of battery.It is described
BMS main control chip is connected by the 6th data terminal with display screen.
As shown in figure 3 or 4, it is preferred that electric current is excessive in order to prevent, passes through fusing in the positive wire of the battery unit
Device MSD is equipped with charge switch on the charging positive wire, is connected by the charge switch with charging socket, in electric current
When beyond rated current, fuse be will disconnect, to protect battery unit.The charge switch is the normal open switch of charge relay
K9, one end of the charge relay are connected with the 6th data terminal h of BMS main control chip, and the other end is interior with BMS main control chip
Whether outer stagnation pressure negative terminal g is connected, be connected by BMS main control chip internal control charge relay.Charge relay in order to prevent
The inside stagnation pressure anode k of the phenomenon that normal open switch K9 sticks together, BMS main control chip is connected with the positive wire of battery unit,
The case where being also able to detect cell voltage and insulation simultaneously.
As shown in figure 3 or 4, it is preferred that the BMS main control chip being connected with battery unit from control unit, the electricity
Include multiple battery groups in pool unit, be equipped in each battery group it is multiple from control unit, each from control unit and multiple strings
The battery cell of connection is connected.It is described to monitor the state of concatenated battery cell from control unit, and the state is fed back into BMS
Main control chip, BMS main control chip do further management control according to the state.It is described from control unit using it is general from control mould
Block.Such as in Fig. 2, in the first battery group include first from control unit and second from control unit, described first from control unit
For monitoring the state of the first battery group and the second battery group, second from control unit for monitoring the second battery group and the
The state of three battery groups, described first feeds back to BMS master control core from the state that control unit will test from control unit and second
Piece.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (7)
1. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive, which includes battery unit, power supply
Battery and BMS main control chip, which is characterized in that the battery unit passes sequentially through the normal open switch and DC- of the first DC relay
DC converter is connected with supplying cell, and the anode of the supplying cell passes through switch module one end with the first DC relay respectively
Be connected with the power supply end of BMS main control chip, the cathode of the supplying cell respectively with the other end of the first DC relay and
The inside and outside stagnation pressure negative terminal of BMS main control chip is connected.
2. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is that the switch module includes manual switch, and with the concatenated self-lock switch branch of manual switch；The self-lock switch
Branch includes the normal open switch of point driving switch and the 2nd DC relay parallel with one another, one end of the 2nd DC relay with
First data terminal of BMS main control chip is connected, and the other end is connected with the inside and outside stagnation pressure negative terminal of BMS main control chip.
3. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is, the diode of forward conduction is equipped between the DC-DC converter and supplying cell.
4. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is that the electric discharge positive wire of the battery unit is described to put by the positive port of discharge switch protective module connection electric discharge
Electric switch protective module is the institute by composing in parallel again with discharge switch after the series connection of the normal open switch of protective resistance and preliminary filling relay
The one end for stating preliminary filling relay is connected with the third data terminal of BMS main control chip, the inside and outside stagnation pressure of the other end and BMS main control chip
Negative terminal is connected.
5. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is, heating film, the normal open switch and electricity that one end of the heating film passes through heating relay are equipped in the battery unit
The charging anode of pool unit is connected, and the other end of heating film is connected with the cathode of battery unit；One end of the heating relay
It is connected with the 5th data terminal of BMS main control chip, the other end is connected with the inside and outside stagnation pressure negative terminal of BMS main control chip.
6. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is that the BMS main control chip is connected with current sensor, and the current sensor is set to the anode of the battery unit
On conducting wire.
7. a kind of lithium battery high voltage system for being exclusively used in shield electric traction locomotive according to claim 1, special
Sign is that the anode of the battery unit passes sequentially through fuse and charge switch is connected with charging socket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820985388.9U CN208585115U (en) | 2018-06-26 | 2018-06-26 | A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820985388.9U CN208585115U (en) | 2018-06-26 | 2018-06-26 | A kind of lithium battery high voltage system being exclusively used in shield electric traction locomotive |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861382A (en) * | 2019-04-03 | 2019-06-07 | 广州宝狮新能源有限公司 | A kind of power-supply system of anti-surge voltage impact |
| CN110120678A (en) * | 2019-04-30 | 2019-08-13 | 上海电气集团股份有限公司 | Energy accumulation current converter |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
| CN110429697A (en) * | 2019-09-11 | 2019-11-08 | 杭州协能科技股份有限公司 | Under-voltage protecting circuit and guard method |
| CN111555425A (en) * | 2020-05-15 | 2020-08-18 | 中国重汽集团济南动力有限公司 | Vehicle bipolar column dual-power parallel system and control method |
| CN111584958A (en) * | 2020-05-14 | 2020-08-25 | 中国重汽集团济南动力有限公司 | Hybrid battery system for vehicle and control method |
| CN112751378A (en) * | 2019-10-29 | 2021-05-04 | 大众汽车股份公司 | Control device for a high-voltage battery and method for operating a control device |
-
2018
- 2018-06-26 CN CN201820985388.9U patent/CN208585115U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861382A (en) * | 2019-04-03 | 2019-06-07 | 广州宝狮新能源有限公司 | A kind of power-supply system of anti-surge voltage impact |
| CN109861382B (en) * | 2019-04-03 | 2023-11-21 | 广州宝狮新能源有限公司 | Power supply system capable of preventing surge voltage from impacting |
| CN110120678A (en) * | 2019-04-30 | 2019-08-13 | 上海电气集团股份有限公司 | Energy accumulation current converter |
| CN110265734A (en) * | 2019-06-14 | 2019-09-20 | 湖南科霸汽车动力电池有限责任公司 | 48V track battery voltage monitor |
| CN110429697A (en) * | 2019-09-11 | 2019-11-08 | 杭州协能科技股份有限公司 | Under-voltage protecting circuit and guard method |
| CN112751378A (en) * | 2019-10-29 | 2021-05-04 | 大众汽车股份公司 | Control device for a high-voltage battery and method for operating a control device |
| CN111584958A (en) * | 2020-05-14 | 2020-08-25 | 中国重汽集团济南动力有限公司 | Hybrid battery system for vehicle and control method |
| CN111555425A (en) * | 2020-05-15 | 2020-08-18 | 中国重汽集团济南动力有限公司 | Vehicle bipolar column dual-power parallel system and control method |
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