CN202488159U - Train tail host cell charger - Google Patents
Train tail host cell charger Download PDFInfo
- Publication number
- CN202488159U CN202488159U CN2011205491571U CN201120549157U CN202488159U CN 202488159 U CN202488159 U CN 202488159U CN 2011205491571 U CN2011205491571 U CN 2011205491571U CN 201120549157 U CN201120549157 U CN 201120549157U CN 202488159 U CN202488159 U CN 202488159U
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- vehicle
- train tail
- module
- tail host
- battery charger
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a train tail host cell charger, which mainly comprises a power supply transition module, a charge and discharge control module and a master control CPU. The power supply transition module is a DC to DC source transition module; the charge and discharge control module is coupled to the power supply transition module and controls charge and discharge by sampling the voltage and current of a cell set; and the master control CPU is coupled to the charge and discharge control module and manages the cell set according to the cell set parameter obtained by communicating with the cell set. According to the utility model, the train tail host cell charger is more suitable for application in a vehicle environment compared to the prior art.
Description
Technical field
The utility model relates to a kind of battery charger, relates in particular to a kind of vehicle-mounted train tail host battery charger.
Background technology
Present widely used train tail host battery charger is the charger that uses under the indoor environment of ground, and its supply power voltage is the 220V alternating current.The train tail host battery exhausts through using the back electric weight, and the staff changes charged on the ground battery, and the battery that again electric weight is exhausted is brought back the ground charging room and charged.The former use that can satisfy the scene basically of this mode; But fast development along with railway transportation; Particularly long routing operation, and railway is managerial progressively perfect, original single row end cell charging modes can not satisfy on-the-spot needs.Therefore,, need a kind of vehicle-mounted train tail host battery charger, make it on locomotive, just can carry out charging operations the row end cell in order to be train tail host supply battery more flexibly.Like this, vehicle just can oneself be given the train tail host battery charge among driving process, thus stronger assurance the normal use of train tail host.
Owing to ground is indoor distinct operational environment, supply power voltage and harsh more electromagnetic compatible environment arranged on the locomotive; While vehicle vehicle body in the process of moving has strenuous vibration; Original charger circuit and structure can not adapt to vehicle environment; Must carry out necessary technology improvement and improvement to vehicle environment, develop a kind of vehicle-mounted train tail host battery charger that is adapted at use under the vehicle environment.
The inventor of the utility model finds that there is following technological deficiency at least in prior art in the process that realizes the utility model:
1) power supply
The charger supply power voltage that use on ground is the 220V AC power, be the 110V DC power supply owing to what use on the locomotive, thereby existing charger can't use on locomotive.
2) vehicle-mounted vibration environment
There are violent vibrations in locomotive in traveling process, can produce influence greatly to the work of charger, thereby the charging modes of original charger construction and cassette type does not fit into vehicle-mounted charge.
3) spread of voltage
Locomotive power supply voltage is very unstable; Also have the of short duration situation of stopping power supply once in a while; This unsettled power supply environment brings very large trouble can for the operate as normal of charger, possibly cause the state of charger to change, and influences normal charge and discharge operation.
4) Electro Magnetic Compatibility
Electromagnetic environment under the vehicle environment is more abominable, and the Electro Magnetic Compatibility of equipment is than the high grade of ground indoor equipment under the vehicle environment, and the electromagnetic compatibility measure of original charger can't adapt to present vehicle environment.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of vehicle-mounted train tail host battery charger, and it is applicable in the vehicle environment and uses.
According to this novel one side, a kind of vehicle-mounted train tail host battery charger is provided.This vehicle-mounted train tail host battery charger comprises: power transfer module (110), and it is the power transfer module of DC-DC; Discharge and recharge control module (130), it is coupled to said power transfer module (110), discharges and recharges through the voltage and current of battery pack is sampled to control; And master cpu (120), it is coupled to the said control module (130) that discharges and recharges, and through communicating the parameter that obtains battery pack with battery pack, according to the parameter of said battery pack battery pack is managed.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, said power transfer module (110) is the power transfer module that locomotive initial input direct voltage is converted into the direct voltage of first setting voltage value lower than said locomotive initial input dc voltage value.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, the said control module (130) that discharges and recharges is that a single channel discharges and recharges control module.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, the said control module (130) that discharges and recharges comprises charging module (300), discharge module (400) and button display module (220).
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, said charging module (300) comprises the DC-DC module (310) that the direct voltage of said first setting voltage value is converted into the direct voltage of second setting voltage value lower than said first setting voltage value.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, said button display module (220) comprises the red light emitting diodes that is used to show said vehicle-mounted train tail host battery charger state.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, the input of said power transfer module (110) is provided with DC wave filter, magnet ring, piezo-resistance and transient voltage and suppresses diode.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, the housing of said vehicle-mounted train tail host battery charger (180) is an enclosed construction.
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, be provided with at least one heat abstractor at the top panel and/or the side panel of housing (180).
According to this novel a kind of vehicle-mounted train tail host battery charger that provides on the other hand, vehicle-mounted train tail host battery charger comprises the EEPROM that is used to store said battery pack parameter.
Compared with prior art, the utlity model has following advantage: on power supply, select for use a kind of power supply of input direct voltage to supply power, to adapt to the DC power supply in the vehicle environment to charger.
In addition; Because there are violent vibrations in locomotive in traveling process; Battery and charger contacts bad contacts meeting the work of charger produced influence greatly, and the utility model adopts the mode of battery compartment with lock to reduce the influence of the environment of vibrations to the operate as normal of charger; Use EEPROM to solve charger because the problem that unexpected power down charger state changes; Increased the electromagnetic compatibility measure to adapt to vehicle environment, the work of assurance onboard charger does not receive the interference of other mobile unit, does not influence the operate as normal of other mobile units simultaneously yet; Charger adopts the housing of enclosed construction, and the top panel and/or the side panel of housing are provided with at least one heat abstractor, make the utility model more be applicable in the vehicle environment.
Further feature of the utility model and advantage will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through implementing the utility model.The purpose of the utility model can realize through the structure that in specification, claims and accompanying drawing, is particularly pointed out and obtain with other advantages.
Though will combine certain exemplary enforcement and method for using to describe the utility model hereinafter, those skilled in the art are to be understood that to not being intended to the utility model are limited to these embodiment.Otherwise, be intended to cover the spirit and interior all substitutes, correction and the equivalent of scope that are included in the defined the utility model of appending claims.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the system configuration sketch map according to the vehicle-mounted train tail host battery charger of the utility model first embodiment;
Fig. 2 discharges and recharges the control module structural representation according to the vehicle-mounted train tail host battery charger of the utility model first embodiment;
Fig. 3 is the charging flow sketch map that discharges and recharges the charging management chip of control module;
Fig. 4 is the structural representation according to the discharge module of the vehicle-mounted train tail host battery charger of the utility model first embodiment;
Fig. 5 is the structural representation according to the vehicle-mounted train tail host battery charger of the utility model second embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, the utility model is done to specify further below in conjunction with accompanying drawing.
Below will combine accompanying drawing and embodiment to specify the execution mode of the utility model, how the application technology means solve technical problem to the utility model whereby, and the implementation procedure of reaching technique effect can make much of and implement according to this.Need to prove that only otherwise constitute conflict, each embodiment in the utility model and each characteristic among each embodiment can mutually combine, formed technical scheme is all within the protection range of the utility model.
First embodiment
Fig. 1 is the system configuration sketch map according to the vehicle-mounted train tail host battery charger (abbreviation charger) of the utility model first embodiment.As shown in Figure 1, charger comprises: power transfer module 110, master cpu 120, discharge and recharge control module 130.Next, with being elaborated with regard to each module that charger comprised and the function that possesses thereof respectively.
In this embodiment; Power transfer module 110; The one of which end is coupled to the input power supply; It is DC-DC power supply modular converter (being called for short the DC-DC module); Be used for locomotive initial input direct voltage (following is that 110V is that example describes with locomotive initial input dc voltage value) is converted to the direct voltage of first setting voltage value that is lower than locomotive initial input dc voltage value (following equal 13.8V be that example describes) with first setting voltage value, to master cpu 120 with discharge and recharge control module 130 power supplies; Discharge and recharge control module 130, it is coupled to said power transfer module 110, discharges and recharges through the voltage and current of battery pack is sampled to control; Master cpu 120, it is coupled to and discharges and recharges control module 130, through communicating the parameter of obtaining battery pack with battery pack, according to the parameter of battery pack battery pack is managed.
Need to prove; Master cpu 120 communicates through adopting communication protocol (like the HDQ16 agreement) and battery pack; To obtain the parameter of battery pack, according to the battery pack parameter that obtains battery pack is managed, if master cpu 120 and battery pack generation communication failure; Then master control CUP120 stops using charger through instruction, does not carry out any charge and discharge operation.Wherein, the parameter of battery pack comprises battery voltage, residual capacity, charging and discharging currents, battery pack temperature, cycle-index, rated capacity, build date, sequence number etc., and the parameter of battery pack is stored in the memory cell of master cpu 120 inside.
Need to prove that charger can cause resetting of charger operation when unexpected power down, thereby upset the operating state of original charger, possibly cause the battery power discharge that was full of originally or charging behind the service restoration, influence normal charge and discharge operation.In the present embodiment; Preferably use EEPROM (being called for short E2PROM) the storage battery group parameter of plug and play; Time recording charger work at present state judges whether to recover battery pack operating state before through content recorded among comparison battery pack numbering and the E2PROM behind service restoration.
Fig. 2 is the structural representation that discharges and recharges control module according to the vehicle-mounted train tail host battery charger of the utility model first embodiment.As shown in Figure 2, discharging and recharging control module 130 is a single channel charge-discharge modules, comprises charging module 300, discharge module 400 and button display module 220.Charging module 300 is coupled to battery pack, is used for the battery pack control of charging.Discharge module 400 also is coupled to battery pack, is used for the battery pack control of discharging.Button display module 220, the parameter of the battery pack that it is used to show that master cpu 120 is obtained.
Please continue with reference to figure 2; Charging module 300 comprises DC-DC module 310; It is used for the direct voltage that output dc voltage 13.8V with DC-DC module 110 converts another second setting voltage value that is lower than 13.8V (first setting voltage value) (following equal 5V with second setting voltage value be that example describes) into, is used for to charging module 300 and discharge module 400 power supplies; Charging management chip 320 is used for the voltage and the electric current of battery pack are sampled, with discharging and recharging of monitoring and control battery pack.
Need to prove that it is 2A that present embodiment when charging adopted the charging current of constant current charge, so the charging circuit operating current also is 2A, then the power output of DC-DC module 110 is at least 13.8V * 2A=27.6W.
Fig. 3 is the charging flow sketch map of charging management chip.With the BQ2000 chip is example, is elaborated with reference to figure 3 below.
Particularly; BAT pin voltage value through detecting BQ2000 judges whether to get into charged state; If the BAT pin voltage is lower than internal threshold voltage (950mV); Then BQ2000 gets into not charged state, and battery pack possibly be in capacity and exhaust, damages or the charging pending status of short circuit, then through being that 1 second trickle pulse attempts waking up the battery pack that capacity exhausts in the MOD of the BQ2000 chip pin output cycle.
Need to prove that this step is an optional step, can not carry out the direct step 340 that gets into of step 330 and operate.
Whether step 340, the sampled voltage (that is, the BAT pin voltage of BQ2000) of judging battery pack less than 2V, if less than then getting into step 350, otherwise gets into step 360.
Need to prove; The charging modes of the battery pack of chemical structures is different, and in the charging starting stage, BQ2000 detects the chemical constitution of battery through the sampled voltage of monitor battery pack; When the BAT of BQ2000 pin voltage during less than 2V, then battery pack is a nickel-cadmium cell; When the BAT of BQ2000 pin voltage during more than or equal to 2V, then battery pack is a lithium ion battery.When confirming the chemical constitution of battery, promptly confirmed to meet the charge control method of battery pack.
Particularly; Be provided with to the charging of lithium ion battery group or to the charging of ickel-cadmium cell group through the potential-divider network wire jumper that BQ2000 chip BAT pin is set, present embodiment is realized the potential-divider network wire jumper setting of BAT pin according to the battery pack type selection key that is provided with in the button display module 220 of charger.
Step 390 is forbidden batteries charging.
Fig. 4 is the structural representation of discharge module 400 of the vehicle-mounted train tail host battery charger of present embodiment.As shown in Figure 4, discharge module 400, it is used for battery pack is discharged, and when battery voltage drops to 6V, stops discharge.
Preferably, first field-effect transistor 410 and second field-effect transistor 420 are chosen as P-channel metal-oxide-semiconductor FET (being called for short MOSFET).As shown in Figure 4, the source electrode of a MOSFET is coupled to charging module 300, and its grid is coupled to master cpu 120, and drain electrode is coupled to the source electrode of the 2nd MOSFET; The grid of the 2nd MOSFET also is coupled to master cpu 120, and drain electrode is coupled to an end of discharge load resistance 430, the other end ground connection of discharge load resistance 430; The anode of battery pack also is coupled to the drain electrode of the 2nd MOSFET, and the SNS pin of the negative terminal of battery pack and BQ2000 chip is coupled to an end of precision resister 440 simultaneously, the other end ground connection of precision resister 440; One end of first divider resistance 450 also is coupled to the anode of battery pack, a be connected in series end of second divider resistance 460 of its other end, the other end ground connection of second divider resistance 460.
The one MOSFET 410 and the 2nd MOSFET 420 are controlled by master cpu 120; The one MOSFET 410 and the 2nd MOSFET 420 conducting of complementary ground and disconnections; When battery pack was charged, a MOSFET opened, and the 2nd MOSFET turn-offs; Cut off discharge loop, avoid occurring charging and discharge simultaneously; When battery pack was discharged, the 2nd MOSFET opened, and a MOSFET turn-offs, and cut off charge circuit, avoided occurring discharge and charged simultaneously.
Discharge load resistance 430 makes maximum discharge current be no more than 2A through its resistance is set, and is used to protect battery.For the ease of heat radiation, discharge load resistance (430) adopts high-power aluminum hull resistance.
With the BQ2000 chip is example; Obtain to carry out the value of the constant current charge electric current I of charging control process (step 350 among Fig. 3) indirectly at BQ2000 according to the resistance of precision resister 440; I=0.05/Rs obtains according to formula, the preferred I=2A of present embodiment, then Rs=0.025 Ω.Obtain to carry out the value of the constant voltage charge voltage of charging control process (step 360 among Fig. 3) indirectly at BQ2000 according to the resistance of first divider resistance 450 among Fig. 4 and second divider resistance 460.
Need to prove,, therefore discharge module 400 is set because BQ2000 does not have discharge mechanism.In order to prevent to damage battery pack, BQ2000 needs continual monitoring battery group sampled voltage, when voltage drops to preset voltage, then stops discharge.
Second embodiment
Fig. 8 is the structural representation according to the vehicle-mounted train tail host battery charger of the utility model second embodiment.Be elaborated with reference to figure 8 below.
For the ease of explanation, no longer the module identical with previous embodiment launched in detail, and only stressed the difference with previous embodiment.In Fig. 8, to the same or analogous module of previous embodiment, adopted identical Reference numeral.
The charger of present embodiment adopts enclosed construction.As shown in Figure 8, housing 180 is enclosed constructions, makes vehicle-mounted train tail host battery charger when work, not receive the electromagnetic interference of other mobile unit, does not also influence the operate as normal of other mobile unit simultaneously.Preferably, adopt metal shell, prevent extraneous electromagnetism and radiated interference.
Top panel and/or side panel at housing (180) are provided with at least one for example heat abstractor such as fin, fan.Can avoid the slow problem of when the charger temperature is too high, dispelling the heat like this.
Other embodiment
(1) input of power transfer module 110 is provided with DC wave filter, magnet ring, piezo-resistance and transient voltage inhibition diode (TVS, TRANSIENT VOLTAGE SUPPRESSOR) pipe, is used to eliminate the various interference that possibly introduce.
(2) because the influence of vehicle environment, the utility model preferably, battery adopts the mode of battery compartment laterally to place, and snap close is set simultaneously prevents battery landing from battery compartment in the charge and discharge process.For prevent battery in the vibrations process with discharge and recharge poor contact of contacts, under each contact, rubber sheet gasket is set, solve the problem of the loose contact of battery and charger contacts under the vibration environment.
Each module that it is apparent to those skilled in the art that above-mentioned the utility model can be made into each integrated circuit modules respectively with them, perhaps a plurality of modules in them or step is made into the single integrated circuit module and realizes.Like this, the utility model is not restricted to any specific combination of hardware.
Though the execution mode that the utility model disclosed as above, the execution mode that described content just adopts for the ease of understanding the utility model is not in order to limit the utility model.Technical staff under any the utility model in the technical field; Under the prerequisite of spirit that does not break away from the utility model and disclosed and scope; Can do any modification and variation what implement in form and on the details; But the scope of patent protection of the utility model still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1. a vehicle-mounted train tail host battery charger is characterized in that, comprising:
Power transfer module (110), it is the DC-DC power supply modular converter;
Discharge and recharge control module (130), it is coupled to said power transfer module (110), discharges and recharges through the voltage and current of battery pack is sampled to control; And
Master cpu (120), it is coupled to the said control module (130) that discharges and recharges, and through communicating the parameter that obtains battery pack with battery pack, according to the parameter of said battery pack battery pack is managed.
2. vehicle-mounted train tail host battery charger according to claim 1 is characterized in that,
Said power transfer module (110) is the power transfer module that locomotive initial input direct voltage is converted into the direct voltage of first setting voltage value lower than said locomotive initial input dc voltage value.
3. vehicle-mounted train tail host battery charger according to claim 2 is characterized in that,
The said control module (130) that discharges and recharges is that a single channel discharges and recharges control module.
4. vehicle-mounted train tail host battery charger according to claim 3 is characterized in that
The said control module (130) that discharges and recharges comprises charging module (300), discharge module (400) and button display module (220).
5. vehicle-mounted train tail host battery charger according to claim 4 is characterized in that
Said charging module (300) comprises the DC-DC module (310) that the direct voltage of said first setting voltage value is converted into the direct voltage of second setting voltage value lower than said first setting voltage value.
6. vehicle-mounted train tail host battery charger according to claim 4 is characterized in that
Said button display module (220) comprises the red light emitting diodes that is used to show said vehicle-mounted train tail host battery charger state.
7. vehicle-mounted train tail host battery charger according to claim 1 is characterized in that,
The input of said power transfer module (110) is provided with DC wave filter, magnet ring, piezo-resistance and transient voltage and suppresses diode.
8. according to each described vehicle-mounted train tail host battery charger of claim 1 to 7, it is characterized in that,
The housing of said vehicle-mounted train tail host battery charger (180) is an enclosed construction.
9. vehicle-mounted train tail host battery charger according to claim 8 is characterized in that,
Top panel and/or side panel at housing (180) are provided with at least one heat abstractor.
10. vehicle-mounted train tail host battery charger according to claim 1 is characterized in that,
Vehicle-mounted train tail host battery charger comprises the EEPROM that is used to store said battery pack parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491571U CN202488159U (en) | 2011-12-23 | 2011-12-23 | Train tail host cell charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491571U CN202488159U (en) | 2011-12-23 | 2011-12-23 | Train tail host cell charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488159U true CN202488159U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205491571U Expired - Lifetime CN202488159U (en) | 2011-12-23 | 2011-12-23 | Train tail host cell charger |
Country Status (1)
| Country | Link |
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| CN (1) | CN202488159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855688A (en) * | 2012-11-29 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Leakage current protection circuit of battery |
-
2011
- 2011-12-23 CN CN2011205491571U patent/CN202488159U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855688A (en) * | 2012-11-29 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Leakage current protection circuit of battery |
| CN103855688B (en) * | 2012-11-29 | 2016-12-21 | 深圳市海洋王照明工程有限公司 | The leakage current protection circuit of battery |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171220 Address after: 102600 Beijing city Daxing District Zhongguancun science and Technology Park Daxing bio pharmaceutical industry base, No. 21 courtyard, Tianrong street, building No. 1 Patentee after: Beijing Century Dongfang Communication Equipment Co., Ltd. Address before: 100070 Beijing, Fengtai District, Fengtai District, Fourth Ring West Road, No. twelve district, 31 building century Eastern Mansion Patentee before: Beijing Century East China Railway Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102600 Beijing Daxing District Zhongguancun Science and Technology Park Daxing Biomedical Industry Base, No. 1 Building, 21 Tianrong Street Patentee after: Beijing Century Oriental Zhihui Technology Co.,Ltd. Address before: 102600 Beijing Daxing District Zhongguancun Science and Technology Park Daxing Biomedical Industry Base, No. 1 Building, 21 Tianrong Street Patentee before: BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |