CN201518343U - Electric bicycle battery with electric quantity accumulation display function - Google Patents
Electric bicycle battery with electric quantity accumulation display function Download PDFInfo
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- CN201518343U CN201518343U CN2009201714395U CN200920171439U CN201518343U CN 201518343 U CN201518343 U CN 201518343U CN 2009201714395 U CN2009201714395 U CN 2009201714395U CN 200920171439 U CN200920171439 U CN 200920171439U CN 201518343 U CN201518343 U CN 201518343U
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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
Abstract
An electric bicycle battery with electric quantity accumulation display function is composed of a battery box, a serial connection battery group, a power supply switch, a display circuit module and a control circuit board, effectively protects battery 'over-charging' and 'over-discharging', meters and display accumulation charging electric quantity, accumulation discharging electric quantity of the battery, and current electric quantity of the battery group, and provides scientific and effective methods for accurately evaluating practical use efficiency, charging and discharging efficiency of electric bicycle batteries, and consumption of battery service in practical use process.
Description
Affiliated technical field
The utility model relates to a kind of battery of electric bicycle, especially a kind of battery of electric bicycle that has electric weight accumulative total Presentation Function.
Background technology
Electric bicycle has begun to popularize as the trip vehicles of health environment-friendly comprehensively, and the employed storage battery of electric bicycle has two kinds: lead acid accumulator and lithium battery.Compare with the lead acid accumulator of same capacity, the lithium battery energy density is big, and is in light weight, easy to use, no lead contamination, but its price is far above lead acid accumulator.This makes the public more be concerned about its actual effective utilization and actual life when selecting lithium battery.
Electric bicycle can be eliminated the public to the misgivings in lithium battery life-span to a certain extent with lithium battery charter business, has promoted the application of lithium battery on electric bicycle.
The complete charge-discharge cycles number of times that the life-span of rechargeable battery is experienced before normally dropping to a certain degree with the charge/discharge capability of battery is evaluated.Rechargeable battery is with the carrying out of charge-discharge cycles, and its charging and discharging ability can progressively descend.The life-span of battery is progressively consumed in actual use.
Owing to lack measurement means to the science of the actual use amount of leaseholder, mostly existing electric bicycle is to collect the charges with the fate of rentable battery simply with lithium battery charter business, and the person that do not consider to lease the battery is to the battery actual consumption, can not realize leasing both sides' fair deal, also hinder the development in rentable battery market.
In order to solve measurement problem, the utility model proposes a kind of battery of electric bicycle that has electric weight accumulative total Presentation Function to the actual consumption amount of bicycle battery.
The utility model content
In order to solve measurement problem to the actual consumption amount of bicycle battery; the utility model proposes a kind of battery of electric bicycle that has electric weight accumulative total Presentation Function; form by battery case, series battery, mains switch, display circuit module and control circuit board; comprise on the control circuit board that DC/DC transducer, microcontroller (also claim monolithic computer, MCU), current sampling circuit, electric quantity metering circuit, voltage measurement gating circuit, A/D change-over circuit, data storage and protective circuit.
In the charge or discharge process; microcontroller is measured the voltage of each battery in the series battery in real time by A/D conversion and voltage measurement gating circuit; when cell voltage is higher than the charging cut-ff voltage or is lower than discharge cut-off voltage; microcontroller sends signal to protective circuit; turn-off the charge or discharge path, avoid battery " to overcharge " or " cross and put ".
In the charge or discharge process, microcontroller is gathered charge capacity or discharge electricity amount in real time by electric quantity metering circuit and current sampling circuit, and with after the electric weight accumulative total that collects, is stored in the data storage.
When each charge or discharge begin, accumulative total charge capacity of storing in the microcontroller reading of data memory and accumulated discharge electric weight, and will add up charge capacity and the accumulated discharge electric quantity data sends to the display circuit module that is fixed on the battery case, will add up charge capacity and tired discharge electricity amount shows.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of battery of electric bicycle that has electric weight accumulative total Presentation Function; by battery case; series battery; mains switch; display circuit module and control circuit board are formed; referring to Fig. 1; comprise the DC/DC transducer on the control circuit board; microcontroller (also claims monolithic computer; MCU); current sampling circuit; the electric quantity metering circuit; the voltage measurement gating circuit; the A/D change-over circuit; data storage and protective circuit; referring to Fig. 2; one end of mains switch links to each other with the positive pole of battery pack; the other end is connected with the input of protective circuit and DC/DC transducer; microcontroller and A/D change-over circuit; the electric quantity metering circuit; data storage circuitry; protective circuit is connected; the A/D change-over circuit is connected with the voltage measurement gating circuit; the voltage measurement gating circuit is connected with each cell in the series battery; the electric quantity metering circuit is connected with current sampling circuit; current sampling circuit is connected between the output negative pole of the negative pole of battery pack and battery case; mains switch and display circuit module are installed on the battery case; when mains switch is closed; the work of DC/DC transducer; with the voltage transitions of battery pack is the 5V direct voltage; for other circuit provides working power; the still preservable FLASH data storage circuitry of data after the data storage circuitry use power down; the integrated circuit of AT45DB161D storage as atmel corp's production; when mains switch disconnects; the each several part circuit is the power supply of consuming cells group not, and the data that data storage circuitry is preserved are not lost.
Referring to Fig. 2; microcontroller is by A/D change-over circuit and voltage measurement gating circuit; detect each monomer battery voltage in the series battery; when monomer battery voltage in the discharge process is lower than the assigned voltage value; or when monomer battery voltage is higher than the assigned voltage value in the charging process; microcontroller sends control signal to protective circuit, turn-offs the charge or discharge path, realizes the protection to " overcharging " and " cross and put " of each cell in the battery pack.
In the charge or discharge process, microcontroller is gathered this charge or discharge electric weight of battery pack by electric quantity metering circuit and current sampling circuit, and with each charge or discharge electric weight accumulative total, is stored in the data storage.
When each mains switch was connected, accumulative total charge volume of storing in the microcontroller reading of data memory and accumulated discharge amount showed by display circuit module.Display circuit module can be the charactron display module, also can be LCD.
When battery discharge reaches the discharge minimum voltage of regulation, microcontroller is counted " 0 " with the current electric quantity of battery pack, and in subsequent charging operations, by electric quantity metering circuit and current sampling circuit, gather this charge capacity of battery pack, from zero electric weight, the current electric quantity of metering battery, and show the current electric quantity of battery by display circuit module, by data storage circuitry storage current electric quantity.
In next discharge process, microcontroller is by electric quantity metering circuit and current sampling circuit, gather this discharge electricity amount of battery pack, and the discharge electricity amount of examining and making cuts in the battery electric quantity before this discharge of from data storage circuitry, reading, the battery current electric quantity that calculating makes new advances, and show the current electric quantity of battery by display circuit module.
The beneficial effects of the utility model are, can " overcharge " battery, " cross and put " when effectively protecting, and metering also shows accumulative total charge capacity, accumulated discharge electric weight and the battery pack current electric quantity of battery.For actual effective utilization, efficiency for charge-discharge and the actual use of accurately estimating battery of electric bicycle provides science, effective method to the consumption of battery life.Be rentable battery both sides' the fair deal condition that provides the foundation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the battery pack structure schematic diagram.
Fig. 2 is the circuit connection diagram of control circuit board.
Fig. 3 is the flow chart of microcontroller.
Among the figure, BT1, BT2, BT3 ..., BTn is the cell in the series battery.
Embodiment
The battery of electric bicycle group that is composed in series with 10 joint 10AH single lithium battery is an example; the AT89S51 single-chip microcomputer that microcontroller adopts atmel corp to produce; the LM5007 integrated circuit that the DC/DC transducer adopts National Semiconductor (NSC) to produce; current sampling circuit adopts 0.02 ohm of sample resistance; the DS2740 electric quantity metering integrated circuit that the electric quantity metering circuit adopts MAXIM company to produce; the MAX1238 that the A/D change-over circuit adopts MAXIM company to produce; the voltage measurement gating circuit is made of integrated analog switch and MAX4080 high pressure differential amplifier; the integrated circuit of AT45DB161D storage that data storage adopts atmel corp to produce, protective circuit adopts 2 IRFPS3810 field effect transistor.Connect the each several part circuit according to Fig. 2, make control circuit board.
Display circuit module adopts 8 charactron numeral display modules.
Battery case and mains switch adopt common electric bicycle battery holder and mechanical lock switch.
According to Fig. 2, connect display circuit module, battery pack, battery case and mains switch.
According to Fig. 3, establishment microcontroller program.
According to Fig. 1, finish the assembling of battery case.
Claims (2)
1. one kind has the battery of electric bicycle that electric weight adds up Presentation Function; by battery case; series battery; mains switch; display circuit module and control circuit board are formed; comprise the DC/DC transducer on the control circuit board; microcontroller; current sampling circuit; the electric quantity metering circuit; the voltage measurement gating circuit; the A/D change-over circuit; data storage and protective circuit; it is characterized in that: an end of mains switch links to each other with the positive pole of battery pack; the other end is connected with the input of protective circuit and DC/DC transducer; microcontroller and A/D change-over circuit; the electric quantity metering circuit; data storage circuitry; protective circuit is connected; the A/D change-over circuit is connected with the voltage measurement gating circuit; the voltage measurement gating circuit is connected with each cell in the series battery; the electric quantity metering circuit is connected with current sampling circuit, and current sampling circuit is connected between the output negative pole of the negative pole of battery pack and battery case.
2. a kind of battery of electric bicycle that has electric weight accumulative total Presentation Function according to claim 1, it is characterized in that: described mains switch and display circuit module are installed on the battery case, display circuit module can be the charactron display module, also can be LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201714395U CN201518343U (en) | 2009-08-18 | 2009-08-18 | Electric bicycle battery with electric quantity accumulation display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201714395U CN201518343U (en) | 2009-08-18 | 2009-08-18 | Electric bicycle battery with electric quantity accumulation display function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518343U true CN201518343U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201714395U Expired - Fee Related CN201518343U (en) | 2009-08-18 | 2009-08-18 | Electric bicycle battery with electric quantity accumulation display function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518343U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683364A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Circuit control system of back-up power supply |
| CN104638730A (en) * | 2015-02-10 | 2015-05-20 | 王知康 | Method for precisely controlling equal charge and discharge |
| CN106379477A (en) * | 2016-11-18 | 2017-02-08 | 海贝（天津）科技有限责任公司 | Control system of electric assistance bicycle |
| CN107284275A (en) * | 2017-07-13 | 2017-10-24 | 东莞恒量新能源科技有限公司 | Electric car control panel and its charge/discharge control method with display device |
-
2009
- 2009-08-18 CN CN2009201714395U patent/CN201518343U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683364A (en) * | 2012-09-26 | 2014-03-26 | 天宇通讯科技(昆山)有限公司 | Circuit control system of back-up power supply |
| CN104638730A (en) * | 2015-02-10 | 2015-05-20 | 王知康 | Method for precisely controlling equal charge and discharge |
| CN106379477A (en) * | 2016-11-18 | 2017-02-08 | 海贝（天津）科技有限责任公司 | Control system of electric assistance bicycle |
| CN107284275A (en) * | 2017-07-13 | 2017-10-24 | 东莞恒量新能源科技有限公司 | Electric car control panel and its charge/discharge control method with display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 100013, 305, Xinghua Road, Dongcheng District, Beijing, China (room 9) Patentee after: Zhao Jianhe Address before: 100013, 311, Xinghua Road, Dongcheng District, Beijing, China (room 9) Patentee before: Zhao Jianhe |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20140818 |
|
| EXPY | Termination of patent right or utility model |