CN201601521U - Battery charging/discharging performance testing and electric energy recovering device - Google Patents

Battery charging/discharging performance testing and electric energy recovering device Download PDF

Info

Publication number
CN201601521U
CN201601521U CN201020123582XU CN201020123582U CN201601521U CN 201601521 U CN201601521 U CN 201601521U CN 201020123582X U CN201020123582X U CN 201020123582XU CN 201020123582 U CN201020123582 U CN 201020123582U CN 201601521 U CN201601521 U CN 201601521U
Authority
CN
China
Prior art keywords
circuit
battery
discharge
charging
mcu
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201020123582XU
Other languages
Chinese (zh)
Inventor
郭彦蕊
黄运生
陈学
李敏
林锐
吴国良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha SonnePower Electronic Technology Co., Ltd.
Original Assignee
CHANGSHA HIGH-TECH DEVELOPMENT ZONE SHUOBO ELECTRONICS TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGSHA HIGH-TECH DEVELOPMENT ZONE SHUOBO ELECTRONICS TECHNOLOGY Co Ltd filed Critical CHANGSHA HIGH-TECH DEVELOPMENT ZONE SHUOBO ELECTRONICS TECHNOLOGY Co Ltd
Priority to CN201020123582XU priority Critical patent/CN201601521U/en
Application granted granted Critical
Publication of CN201601521U publication Critical patent/CN201601521U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a battery charging/discharging performance testing and electric energy recovering device, which comprises: a MCU micro processing controller, a MCU interface circuit, a logic switch circuit, a charging current adjusting circuit, an auxiliary discharging circuit, a discharging battery seat, a charging battery seat, a charging/discharging voltage current acquiring and adjusting circuit, a switch power supply, a LCD display and a communication interface. The utility model regards the two batteries needing charging/discharging performance test as a system, performs integral design, parameter adjustment and control systematization, charges the electric energy from the discharged battery into the charged battery, realizes energy-recuperation; thereby saves energy, reduces pollution and improves economic benefit.

Description

A kind of battery charging and discharging performance test and electric energy retracting device
Technical field
The utility model belongs to battery tester, particularly relates to a kind of battery charging and discharging performance test and electric energy retracting device.
Background technology
Battery must be tested its electrical property before dispatching from the factory, and wherein the charge-discharge performance of battery is one of its main test event.At present, when battery was tested at charge-discharge performance, charging process was used industrial power, and the electric weight of discharge process will all consume on resistance in vain.The annual only this item of Battery Plant is with a large amount of electric energy of loss.In addition, the intelligent degree of battery charging and discharging performance test is not high, and no programmable function can not be changed automatically, can't realize accurately calculating according to the dynamic test parameter ampere-hour characteristic of battery, causes testing inaccurate, and efficient is low.
The utility model content
But the purpose of this utility model provides a kind of saves energy, battery charging and discharging performance test that intelligent degree is high and electric energy retracting device.
To achieve these goals, the utility model adopts following technical scheme:
Battery charging and discharging performance test and electric energy retracting device comprise:
Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit, logic switching circuit, the both positive and negative polarity of described Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit is connected on the logic switching circuit.
When the utility model is used for battery testing, two Battery packs can be positioned over respectively in discharge battery seat, the rechargeable battery seat, wherein the battery in the discharge battery seat is charged is discharge battery, can carry out discharge test to it; It is rechargeable battery that battery in the rechargeable battery seat does not have electric weight, can carry out charging measurement.The electric weight of being emitted when discharge battery is done discharge test will be delivered to the rechargeable battery seat by this device and charge to rechargeable battery.When the discharge electric energy that charges into discharge battery when rechargeable battery does not reach the specified ampere-hour of rechargeable battery as yet, by Switching Power Supply rechargeable battery is mended electricity, to reach its specified ampere-hour number.The most of electric energy of discharge battery will charge into rechargeable battery, and when discharging into to a certain degree, for saving time and making discharge battery voltage reach specified lower limit, the dump energy of discharge battery will consume fast by the auxiliary discharge loop.The orderly work of Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit is controlled by logic switching circuit.
Another technical scheme of the present utility model is: battery charging and discharging performance test and electric energy retracting device comprise:
The MCU microprocessor controller;
The MCU interface circuit that is connected with the MCU microprocessor controller;
The logic switching circuit that is connected with the MCU interface circuit;
The charging current regulating circuit that is connected with logic switching circuit;
The auxiliary discharge circuit that is connected with logic switching circuit;
The discharge battery seat that is connected with logic switching circuit;
The rechargeable battery seat that is connected with logic switching circuit;
The charging voltage and current collection and the modulate circuit that link to each other with the rechargeable battery seat;
The discharge voltage current acquisition and the modulate circuit that link to each other with the discharge battery seat;
The Switching Power Supply that links to each other with logic switching circuit;
The LCD display that is connected with the MCU microprocessor controller;
The communication interface that is connected with the MCU microprocessor controller.
The utlity model has the high characteristics of energy-conservation and intelligent degree, concrete advantage and good effect demonstrate fully in actual applications:
1, two batteries that needs carried out the charge and discharge performance test are considered as a system, carry out global design, parameter adjustment and control systemization, realize that the electric energy of discharge battery charges in the battery to be charged, thereby energy savings, reduce and pollute, increase economic efficiency;
2, when the energy that is fed into rechargeable battery does not reach rated value, this utility model device can automatically switch to the benefit electricity condition, to reach the specified reserve of electricity of rechargeable battery;
3, two battery charge, discharge, benefit electricity, auxiliary discharge, warning and termination etc. are the programmable control procedure, and logic switch is changed automatically, but the test process unattended operation;
4, gather charge and discharge cell voltage and electric current, counting cell ampere-hour characteristic is controlled charging and discharging currents, magnitude of voltage automatically in real time, and experiment finishes the performance report of back output battery;
5 and upper machine communication, can the omnidistance dynamic parameter that keeps in the charge-discharge performance test process, increase the transparency of charge and discharge process.
Below provide accompanying drawing and further specify the technical solution of the utility model:
Description of drawings
Fig. 1 is a structural principle block diagram of the present utility model.
Fig. 2 is an another kind of structural principle block diagram of the present utility model.
Fig. 3 switching power circuit schematic diagram of the present utility model.
Fig. 4 MCU microprocessor controller of the present utility model basic circuit diagram.
Fig. 5 charge and discharge current/voltage of the present utility model is gathered and regulating circuit figure.
Fig. 6 MCU interface circuit of the present utility model figure.
Fig. 7 logic switching circuit figure of the present utility model.
Fig. 8 charging current regulating circuit of the present utility model figure.
Embodiment:
Embodiment 1
Battery charging and discharging performance test and electric energy retracting device as shown in Figure 1, by Switching Power Supply,
Discharge battery seat, rechargeable battery seat, auxiliary discharge circuit, logic switching circuit are formed, and the both positive and negative polarity of described Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit is connected on the logic switching circuit.
A kind of realization circuit of Switching Power Supply is seen Fig. 3, alternating current 220V input, the output of scalable direct voltage.The logic switching circuit (see figure 7) is made of a series of switch, the auxiliary discharge circuit (?) constitute by a series of resistance.This device workflow is as follows: after device powered on, when discharge battery voltage was higher than charged battery voltage, logic switch filled into the discharge battery energy in the rechargeable battery.When discharge battery voltage is lower than charged battery voltage, by logic switch discharge battery is linked to each other with the auxiliary discharge circuit, make and put a battery and reach the expection discharge parameter, logic switch links to each other Switching Power Supply with rechargeable battery simultaneously, makes rechargeable battery finish the expection charge parameter.
Embodiment 2
As shown in Figure 2, another kind of structure of the present utility model is made up of with Switching Power Supply, keyboard, communication interface and LCD display MCU microprocessor controller, MCU interface circuit, logic switching circuit, charging current regulating circuit, auxiliary discharge circuit, discharge voltage current acquisition and modulate circuit, charging voltage and current collection and modulate circuit, discharge battery, rechargeable battery, benefit electricity.
MCU microprocessor controller (C8051F120): storage input parameter, command word and control program, collection discharges and recharges voltage, the electric current of battery, carry out user program, the ampere-hour number of counting cell produces the interrelated logic signal, the control logic switch, finish charging current PI closed-loop control, show parameters such as current voltage, electric current, time, by communication interface can with upper machine communication, realize the full monitoring of dynamic process;
The MCU interface circuit: receive the control signal of MCU microprocessor controller, through the conditioning of interface circuit, output can drive the contactor in the logic switching circuit, and the control information of charging current regulating circuit;
Logic switching circuit: the program control order according to MCU output, under the driving of interface circuit output information, be switched on or switched off relevant contactor, realize discharge, charging, mend electricity and the every function of auxiliary discharge;
Switching Power Supply: when the electric energy that discharge battery is emitted is not enough to rechargeable battery is charged to specified ampere-hour and counts, the MCU microprocessor controller will be given an order, and rechargeable battery is mended electricity, until reaching specified ampere-hour number;
Charging current regulating circuit: receive the little processing control information of MCU, regulate the charging current value of rechargeable battery, make charging current satisfy battery request;
The auxiliary discharge circuit: the most of electric energy of discharge battery charges into rechargeable battery, and when discharging into to a certain degree, for saving time and making discharge battery voltage reach specified lower limit, the dump energy of discharge battery will consume by the auxiliary discharge loop;
Discharge battery: the battery that need carry out the discharge performance test;
Rechargeable battery: the battery that need carry out the charging performance test
The charge and discharge electric current and voltage is gathered and modulate circuit: gather the voltage and current of discharge battery and rechargeable battery, satisfy the requirement that the MCU microcontroller carries out the A/D conversion after conditioning;
Keyboard: input relevant parameter and order;
LCD display: real-time display voltage, electric current, time and ampere-hour characteristic value;
Communication interface: with the host computer on-line communication.
The utility model device is that two Battery packs that needs carry out charge-discharge performance test are considered as one, under the control of MCU microprocessor controller, most of electric energy of realizing discharge battery is recovered in the rechargeable battery, and the functions such as auxiliary discharge of the benefit of rechargeable battery electricity and discharge battery.
The hardware connecting circuit of this device is as follows: see Fig. 2, the positive and negative of Switching Power Supply CH1, discharge battery seat CH2, auxiliary discharge circuit CH3 all is connected on the logic switching circuit, and the rechargeable battery seat links to each other with logic switching circuit by charging current regulating circuit CH4; See Fig. 3-Fig. 8, the 43rd, 44,45 pins of MCU microprocessor controller are connected on three relay circuits of MCU interface circuit, relay J 1, J2, J3 by the MCU interface circuit is connected on the logic switching circuit again, MCU is the electric current and voltage information that obtains rechargeable battery and discharge battery simultaneously, is connected in the output of discharge voltage current acquisition and modulate circuit and charging voltage and current collection and modulate circuit by ADC port (the 18th, 19,20,21 pins of MCU microprocessor controller).Electric current during simultaneously for adjusting control charging, the 36th pin P1.0 that has the PWM function in the MCU circuit is connected to the control end of IGBT drive circuit EXB841 in the charging current regulating circuit, as shown in Figure 8.The MCU microprocessor controller also has keyboard and LCD display, and links to each other with PC by communication interface, has realized that host computer is to discharging and recharging the monitoring of battery phase parameter.
After the energising of this device, MCU microprocessor controller run user program is finished System self-test, according to the prompting of LCD display, by keyboard battery rated voltage, rated current, specified ampere-hour and charging and discharging currents etc. are set, input " RUN " order after initialization is finished.The ADC port ADC1-ADC4 of MCU microprocessor controller is connected on the ADC output pin of discharge voltage current acquisition and modulate circuit and charging voltage and current collection and modulate circuit as shown in Figure 4.Collection of charge and discharge electric current and voltage and modulate circuit are as shown in Figure 5.Fig. 6 is MCU interface circuit (the realization circuit of the relay J of only drawing 1, identical with relay J 1 of relay J 2, J3), and Fig. 7 is logic switching circuit figure of the present utility model, and Fig. 8 is charging current regulating circuit figure of the present utility model; By A/D conversion port ADC1, ADC2, ADC3, ADC4, the collection in cycle discharges and recharges the current electric current and voltage numerical value of battery, and do the interrelated logic computing, be placed in battery needs discharge on the discharge battery seat when satisfying, be placed under the condition that battery need charge on the rechargeable battery seat, the 45th pin P2.1 mouth output high level of MCU microprocessor controller, the 44th pin P2.2,43 pin P2.3 mouth output low levels.At this moment, as Fig. 6, shown in Figure 7, with T01 and the T1 conducting in the MCU interface circuit that the P2.1 mouth links to each other, relay J 1 coil gets, the normally opened contact closure of J1, the contactor KM1 closure in the logic switching circuit, other relay J 2 and J3 and KM2 and KM3 disconnect.Be placed on the discharge battery seat battery this moment by logic switching circuit, the charging current regulating circuit be placed in that battery constitutes discharge loop on the rechargeable battery seat.Battery charges on the rechargeable battery seat to being placed in, meanwhile, the MCU microprocessor controller carries out the PI computing according to the value of feedback of charging current set point and charging current, from P1.0 mouth output PMW modulating pulse, the charging current regulating circuit is regulated power tube IGBT conducting state, form the Current Negative Three-Point Capacitance closed-loop control, to guarantee that charging current is by the charge value charging of setting.
Along with the increase that is placed in the energy content of battery on the rechargeable battery seat, be placed in the decline that battery terminal voltage U12 on the discharge battery seat will be slowly, when charging current drops to 0.75 times of set point, the real-time accumulated ampere-hour number of MCU microprocessor controller does not reach the specified ampere-hour of rechargeable battery as yet when counting, the P2.1 mouth output low level of MCU microprocessor controller, MCU interface circuit repeat circuit J1 dead electricity, meanwhile, P2.2 port output becoming high level, be attached thereto the MCU interface circuit repeat circuit J2 normally opened contact closure that connects, contactor KM2 closure in the logic switching circuit, the Switching Power Supply of mending electric usefulness is to being placed in battery trickle charge on the rechargeable battery seat, promptly mend electricity, charge into the electric weight of specified ampere-hour number up to rechargeable battery.The MCU microprocessor controller is mended electricity to rechargeable battery when, when battery discharge voltage U 12 does not reach discharge lower voltage limit value on being placed in the discharge battery seat, the P2.3 port output of MCU microprocessor controller becomes high level, is attached thereto relay J 3 closures in the MCU interface circuit that connects.Contactor KM3 in the logic switching circuit gets electric, and the KM3 normally opened contact is connected discharge battery and auxiliary discharge circuit, and discharge battery continues discharge, drops to specified limiting voltage up to the output voltage of discharge battery.After charging, mending electricity and the end of auxiliary discharge overall process, the utility model device can be exported charging performance report and discharge performance report by host computer PC, obtains discharging and recharging the voltage-current curve and the data sheet of battery simultaneously.
Above circuit diagram is a kind of implementation of block diagram function, and the circuit of identical function can be replaced in the prior art, and in addition, battery can be a single battery, also can be the battery pack that single battery constitutes; Material can be lithium ion battery, Ni-MH battery, also can be other material cell such as lead acid storage battery battery.

Claims (2)

1. battery charging and discharging performance test and electric energy retracting device, it is characterized in that comprising: Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit, logic switching circuit, the both positive and negative polarity of described Switching Power Supply, discharge battery seat, rechargeable battery seat, auxiliary discharge circuit is connected on the logic switching circuit.
2. battery charging and discharging performance test and electric energy retracting device is characterized in that comprising:
The MCU microprocessor controller;
The MCU interface circuit that is connected with the MCU microprocessor controller;
The logic switching circuit that is connected with the MCU interface circuit;
The charging current regulating circuit that is connected with logic switching circuit;
The auxiliary discharge circuit that is connected with logic switching circuit;
The discharge battery seat that is connected with logic switching circuit;
The rechargeable battery seat that is connected with logic switching circuit;
The charging voltage and current collection and the modulate circuit that link to each other with the rechargeable battery seat;
The discharge voltage current acquisition and the modulate circuit that link to each other with the discharge battery seat;
The Switching Power Supply that links to each other with logic switching circuit;
The LCD display that is connected with the MCU microprocessor controller;
The communication interface that is connected with the MCU microprocessor controller.
CN201020123582XU 2010-03-05 2010-03-05 Battery charging/discharging performance testing and electric energy recovering device Expired - Fee Related CN201601521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020123582XU CN201601521U (en) 2010-03-05 2010-03-05 Battery charging/discharging performance testing and electric energy recovering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020123582XU CN201601521U (en) 2010-03-05 2010-03-05 Battery charging/discharging performance testing and electric energy recovering device

Publications (1)

Publication Number Publication Date
CN201601521U true CN201601521U (en) 2010-10-06

Family

ID=42812581

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020123582XU Expired - Fee Related CN201601521U (en) 2010-03-05 2010-03-05 Battery charging/discharging performance testing and electric energy recovering device

Country Status (1)

Country Link
CN (1) CN201601521U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102841316A (en) * 2011-12-03 2012-12-26 哈尔滨智木科技有限公司 Method and device for saving energy during battery detection
CN103227486A (en) * 2013-03-22 2013-07-31 浙江海锂子新能源有限公司 Battery testing energy recovery device and control method
CN103368217A (en) * 2012-04-11 2013-10-23 上海中兴派能能源科技有限公司 Charging management system applied to lithium ion battery and lithium ion battery pack
CN103823190A (en) * 2014-03-11 2014-05-28 淄博洁力电气设备有限公司 Comprehensive parameter testing device for large-capacity power battery and testing method of comprehensive parameter testing device
CN104362711A (en) * 2014-11-13 2015-02-18 广东欧赛能源与自动化技术有限公司 Efficient charge and discharge detection system for battery packs of AGV
CN104237804B (en) * 2014-10-07 2017-04-19 山东广达锂电检测研究院有限公司 Lithium battery test system
CN107462822A (en) * 2016-06-03 2017-12-12 国神光电科技(上海)有限公司 The method of testing and system of a kind of power-down protection circuit
CN109444764A (en) * 2018-03-14 2019-03-08 刘杰 A kind of exchange energy type power battery assessment detection method
CN109581235A (en) * 2019-01-15 2019-04-05 中国第汽车股份有限公司 A kind of electric automobile power battery is online and offline volume test connector equipment and application method
CN111983493A (en) * 2019-05-24 2020-11-24 比亚迪股份有限公司 Aging test method and device for energy storage system and energy storage system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102841316A (en) * 2011-12-03 2012-12-26 哈尔滨智木科技有限公司 Method and device for saving energy during battery detection
CN103368217B (en) * 2012-04-11 2015-06-17 上海中兴派能能源科技有限公司 Charging management system applied to lithium ion battery and lithium ion battery pack
CN103368217A (en) * 2012-04-11 2013-10-23 上海中兴派能能源科技有限公司 Charging management system applied to lithium ion battery and lithium ion battery pack
CN103227486A (en) * 2013-03-22 2013-07-31 浙江海锂子新能源有限公司 Battery testing energy recovery device and control method
CN103823190B (en) * 2014-03-11 2017-02-01 淄博前沿医疗器械有限公司 Comprehensive parameter testing device for large-capacity power battery and testing method of comprehensive parameter testing device
CN103823190A (en) * 2014-03-11 2014-05-28 淄博洁力电气设备有限公司 Comprehensive parameter testing device for large-capacity power battery and testing method of comprehensive parameter testing device
CN104237804B (en) * 2014-10-07 2017-04-19 山东广达锂电检测研究院有限公司 Lithium battery test system
CN104362711A (en) * 2014-11-13 2015-02-18 广东欧赛能源与自动化技术有限公司 Efficient charge and discharge detection system for battery packs of AGV
CN107462822A (en) * 2016-06-03 2017-12-12 国神光电科技(上海)有限公司 The method of testing and system of a kind of power-down protection circuit
CN109444764A (en) * 2018-03-14 2019-03-08 刘杰 A kind of exchange energy type power battery assessment detection method
CN109581235A (en) * 2019-01-15 2019-04-05 中国第汽车股份有限公司 A kind of electric automobile power battery is online and offline volume test connector equipment and application method
CN111983493A (en) * 2019-05-24 2020-11-24 比亚迪股份有限公司 Aging test method and device for energy storage system and energy storage system
CN111983493B (en) * 2019-05-24 2022-03-15 比亚迪股份有限公司 Aging test method and device for energy storage system and energy storage system

Similar Documents

Publication Publication Date Title
CN201601521U (en) Battery charging/discharging performance testing and electric energy recovering device
CN103579694B (en) The system that a kind of storage battery is repaired and restorative procedure thereof
CN103441542B (en) Lithium battery distributed charging equalization circuit and control method thereof
CN103579691B (en) A kind of repair system of storage battery and restorative procedure thereof
CN208753464U (en) A kind of lead-acid battery of electric vehicle charging prosthetic device
CN202663151U (en) Quick charge system for lead-acid storage batteries in photovoltaic system
CN105356825A (en) Hybrid system energy storage device
CN108963362A (en) A kind of lead-acid battery of electric vehicle charging remediation management method and the prosthetic device that charges
CN206293959U (en) A kind of solar power supply circuit of intelligent pet necklace
CN102842938B (en) Terminal controlling unit of storage battery charging/discharging distributed control system
CN104253475A (en) Off-grid photovoltaic VRLAB (Valve Regulated Lead Acid Battery) energy storage control device and working method thereof
CN102307026A (en) Intermittent working system and control method for solar energy application system
CN206470376U (en) Batteries charge-discharge test instrument
CN103023135A (en) Multi-level direct current transformation power supply device
CN202534749U (en) Storage battery activation repairing instrument
CN204835546U (en) Energy storage system based on millet controller is filled out in novel peak clipping
CN103823190B (en) Comprehensive parameter testing device for large-capacity power battery and testing method of comprehensive parameter testing device
CN102723764B (en) High-energy pulse quick charging system based on embedded microcomputer control
CN215681813U (en) Parallel energy storage system
CN104158246B (en) A kind of wind-powered electricity generation storage energy operation control method
CN104022558B (en) Uninterrupted formula lead-acid battery charge-discharge system
CN102148523B (en) Energy-saving type charge and discharge control system of storage battery
CN201733118U (en) Repairing device for intelligent repair charger of frequency-variable electric bike
CN204334048U (en) A kind of robot with power-supply management system
CN204271731U (en) A kind of from net photovoltaic VRLAB energy storage control device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice

Addressee: Guo Yanrui

Document name: Notification to Pay the Fees

C56 Change in the name or address of the patentee

Owner name: CHANGSHA SONNE POWER ELECTRONIC TECHNOLOGY CO., LT

Free format text: FORMER NAME: CHANGSHA HIGH-TECH. DEVELOPMENT AREA SONNE POWER ELECTRONIC TECHNOLOGY CO., LTD.

CP03 Change of name, title or address

Address after: 4, 410205 floor, innovation building, Changsha science and technology achievement base, No. 2, Lu Lu, hi tech Development Zone, Hunan, Changsha

Patentee after: Changsha SonnePower Electronic Technology Co., Ltd.

Address before: 410217, Hunan, Changsha province Tongzi Yuelu District slope West Road, No. 328 printing base, Room 408

Patentee before: Changsha High-tech Development Zone Shuobo Electronics Technology Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101006

Termination date: 20150305