CN104330638B - A kind of recognition methods of original-pack charging wire and system - Google Patents
A kind of recognition methods of original-pack charging wire and system Download PDFInfo
- Publication number
- CN104330638B CN104330638B CN201410660729.1A CN201410660729A CN104330638B CN 104330638 B CN104330638 B CN 104330638B CN 201410660729 A CN201410660729 A CN 201410660729A CN 104330638 B CN104330638 B CN 104330638B
- Authority
- CN
- China
- Prior art keywords
- charger
- current
- charging wire
- voltage
- original
- 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.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of recognition methods of original-pack charging wire and system, recognize whether the current charging wire being connected with charger is original-pack charging wire, and method includes for mobile terminal：Preset the resistance Rn of original-pack charging wire and pre-set the charger current voltage corresponding table of output current of charger correspondence output voltage；Started to charge up when mobile terminal is detected after current charging wire is connected with charger；Acquisition for mobile terminal charging input current Iq and input voltage Vq, and according to the corresponding charger output voltage Ve of charger current voltage correspondence table search charging input current Iq, pass through formula（Ve‑Vq）/ Iq calculates the resistance Rc of current charging wire, when | Rc Rn |>During Rn*5%, mobile terminal confirms that current charging wire is non-original-pack charging wire, is otherwise original-pack charging wire.Recognition methods is simple, effectively prevent the charging potential safety hazard that user is brought using personation charging wire.
Description
Technical field
The present invention relates to recognition methods and the system of wireless communication terminal charging technique, more particularly to a kind of charging wire.
Background technology
At present, in the market mobile terminal charging wire is all separated with charger, and common charging wire is USB interface, this
Plant one connection charger of charging wire, a connection mobile terminal；During routine use, charging wire is damaged unavoidably, at this moment
User is usually because the charging wire that price reasons buy personation is replaced；And palm off charging wire in workmanship, material with it is original-pack
There is larger difference in charging wire, security incident is easily caused in actual use, gently then mobile terminal is damaged, heavy then produce
Fire, causes damage to user, and to mobile terminal, manufacturer has undesirable effect.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, the present invention is solves the defect and deficiency of prior art, and proposition can
The whether original-pack method and system of charging wire is judged according to mobile terminal input current.
The technical proposal for solving the technical problem of the invention is as follows：
Whether a kind of recognition methods of original-pack charging wire, the current charging wire being connected with charger is recognized for mobile terminal
For original-pack charging wire, comprise the following steps：
A, the resistance Rn for presetting original-pack charging wire；
B, the charger current voltage corresponding table for pre-setting output current of charger correspondence output voltage；
C, start to charge up when mobile terminal is detected after current charging wire is connected with charger；
D, the acquisition for mobile terminal charging input current Iq and input voltage Vq, and according to the charger current voltage
The corresponding charger output voltage Ve of correspondence table search charging input current Iq, pass through formula（Ve-Vq）/ Iq calculates described
The resistance Rc of current charging wire, when | Rc-Rn |>During Rn*5%, mobile terminal confirms that current charging wire is non-original-pack charging wire, no
It is then original-pack charging wire.
As further Technological improvement plan, the step B specifically includes following steps：By the voltage output of charger
Variable resistor Rvx is connected between pin and lower margin, and series electrical flow table is used to measure the electric current for flowing through variable resistor Rvx, together
When, the output voltage Ve that voltmeter is used to measure charger is connected with lower margin in the voltage output pin of charger, is then passed through
The variable resistor Rvx is adjusted, and it is corresponding to record output current of charger charger current voltage corresponding with output voltage
Table.
The step C specifically includes following steps：Whether the rising edge of detection charger input current occurs saltus step, occurs
Saltus step then determines that mobile terminal is electrically connected with charger and started to charge up.
The present invention also provides a kind of identifying system of original-pack charging wire, recognizes that what is be connected with charger works as mobile terminal
Whether preceding charging wire is original-pack charging wire, and the system includes：
Output current of charger voltage preset module, for pre-setting filling for output current of charger correspondence output voltage
Electric current voltage corresponding table is in the mobile terminal；
Charging connection detection module, for detecting whether charger electrically connects with mobile terminal；
Electric current acquisition module, for obtaining the electric current Iq that mobile terminal is inputted by current charging wire；
Voltage acquisition module, for obtaining the voltage Vq that mobile terminal is inputted by current charging wire；
Current charging wire resistance calculations module, what the current charging wire for being obtained according to the electric current acquisition module was inputted
Electric current Iq is preset to the charger current electricity in the mobile terminal in the output current of charger voltage preset module
Corresponding charger voltage Ve is searched in pressure corresponding table, passes through formula（Ve-Vq）/ Iq calculates the resistance of the current charging wire
Rc；
Original-pack charging wire judge module, for the current charging calculated according to current charging wire resistance calculations module
The resistance Rc of line and the preset resistive value Rn of original-pack charging wire are calculated | Rc-Rn |>During Rn*5%, it is non-to confirm the current charging wire
Original-pack charging wire, is otherwise original-pack charging wire.
Improved as further technical scheme, the output current of charger voltage preset module sets charger current
Voltage corresponding table is that variable resistor Rvx is connected between voltage output pin and lower margin by charger, and series electrical flow table is used for
Variable resistor Rvx electric current is flowed through in measurement, meanwhile, voltmeter is connected with lower margin in the voltage output pin of charger is used to survey
The output voltage Ve of charger is measured, then by adjusting the variable resistor Rvx, and output current of charger and output is recorded
The formation of voltage corresponding relation.
The charging connection detection module is sentenced by detecting whether the rising edge of charger input current occurs saltus step
What whether disconnected mobile terminal electrically connected with charger, generation saltus step then determines that mobile terminal is electrically connected with charger and started to charge up.
Compared with prior art, each output current of the inventive method and system preset charger in the terminal is corresponding
Output voltage mapping table, when mobile terminal is electrically connected by current charging wire with charger, detection mobile terminal it is defeated
Enter electric current in output current of charger output voltage corresponding with output voltage corresponding table to calculate the electricity of current charging wire
Resistance is hindered, and judges whether the resistance of the current charging wire determines with the resistance of original-pack charging wire within matching range
Whether current charging wire is original-pack charging wire, and recognition methods is simple, effectively prevent user and uses filling that personation charging wire is brought
Electric potential safety hazard.
Brief description of the drawings
Fig. 1 is a kind of recognition methods process chart of original-pack charging wire of the present invention.
Fig. 2 is the survey of measurement output current of charger and output voltage in a kind of recognition methods of original-pack charging wire of the present invention
Measure principle assumption diagram.
Fig. 3 is charging wire connection structure schematic diagram in a kind of recognition methods of original-pack charging wire of the present invention.
Fig. 4 is a kind of theory of constitution structure chart of the identifying system of original-pack charging wire of the present invention.
Embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
Whether a kind of recognition methods of original-pack charging wire, the current charging wire being connected with charger is recognized for mobile terminal
For original-pack charging wire, as shown in figure 1, comprising the following steps：
S100, presets the resistance Rn of original-pack charging wire.Correctly to recognize that what is connected between mobile terminal and charger fills
Whether electric wire is original-pack, it is necessary to the resistance of charging wire is set into specific electrical resistance, and charging wire is calculated by the process of subsequent charge
Resistance whether with the resistance of original-pack charging wire in rational fluctuation range, if in rational fluctuation range,
Whether be original-pack charging wire, therefore if then can determine charging wire, it is necessary first to sets charging of the original-pack charging wire as specific electrical resistance
Line, producer sets its resistance Rn when can produce original-pack charging wire in process of production.
S200, pre-sets the charger current voltage corresponding table of output current of charger correspondence output voltage.For moving
For the charger of dynamic terminal, due to the power invariability of charger, charger is when exporting different electric currents, and its output voltage has
Corresponding change, in order to adapt to different output current of charger, charger output will be stored in the terminal different in advance
The relation table of the corresponding charger output voltage of electric current.The mapping table of output current of charger and output voltage can be by right
The measurement of charger is obtained.Fig. 2 shows the principle assumption diagram of measurement output current of charger and output voltage, as shown in Fig. 2
Variable resistor Rvx20 will be connected between the voltage output pin 101 and lower margin 102 of charger 10, and series electrical flow table 30 is used for
Variable resistor Rvx20 electric current is flowed through in measurement, meanwhile, connected between the voltage output pin 101 and lower margin 102 of charger 10
Voltmeter 40 is used for the output voltage Ve for measuring charger 10, then by adjusting variable resistor Rvx20, records charger each
Output voltage during individual output current, to form corresponding charger current voltage corresponding table.
S300, is started to charge up when mobile terminal is detected after current charging wire is connected with charger.Specifically, it is mobile whole
End whether be connected by current charging wire with charger be by detecting whether the rising edge of charger input current occurs saltus step,
Generation saltus step then determines that mobile terminal is electrically connected with charger and started to charge up.
S400, acquisition for mobile terminal charging input current Iq and input voltage Vq, and according to the charger current voltage
The corresponding charger output voltage Ve of correspondence table search charging input current Iq, pass through formula（Ve-Vq）/ Iq calculates described
The resistance Rc of current charging wire, when | Rc-Rn |>During Rn*5%, mobile terminal confirms that current charging wire is non-original-pack charging wire, no
It is then original-pack charging wire.Fig. 3 shows charging wire connection structure schematic diagram, as shown in figure 3, the current one end of charging wire 90 connection is filled
Electrical equipment 10, other end connection mobile terminal 80, after charging starts, mobile terminal 80 can be obtained by the measurement of its input pin 801
Input current is electric current Iq that current charging wire 90 flows through, and mobile terminal input voltage Vq, according to mobile terminal
Input current Iq is searched in the charger current voltage corresponding table that input current Iq current value is prestored to mobile terminal
The corresponding magnitude of voltage of current value is the output voltage Ve of charger.According to charger output voltage Ve, mobile terminal input electricity
Stream Iq and input voltage Vq can calculate the resistance value Rc of current charging wire, and wherein Rc=（Ve-Vq）/ Iq, if calculating resistance
The resistance Rn of value Rc and the original-pack charging wire of setting differs by more than Rn 5% scope, i.e., | Rc-Rn |>During Rn*5%, then it can confirm that
The non-original-pack charging wire of current charging wire, may remind the user that replacing charging wire, otherwise, and it is original-pack charging to confirm current charging wire
Line.
The inventive method is by producing the charging wire of specific electrical resistance, and mobile terminal is currently filled by calculating in charging
The resistance of electric wire recognizes whether the charging wire is original-pack charging wire, and recognition methods is simple, production cost is low, it is possible to prevente effectively from
The charging potential safety hazard that user is brought using personation charging wire.
The present invention also provides a kind of identifying system of original-pack charging wire, recognizes that what is be connected with charger works as mobile terminal
Whether preceding charging wire is original-pack charging wire, as shown in figure 4, the system includes：
Output current of charger voltage preset module 802, for pre-setting output current of charger correspondence output voltage
Charger current voltage corresponding table in mobile terminal.Specifically, output current of charger voltage preset module 802 is set
Charger current voltage corresponding table is connection variable resistor Rvx between voltage output pin and lower margin by charger, and is connected
Ammeter is used to measure the electric current for flowing through variable resistor Rvx, meanwhile, electricity is connected with lower margin in the voltage output pin of charger
Pressure table is used for the output voltage Ve for measuring charger, then by adjusting the variable resistor Rvx, and records charger output
Electric current and the formation of output voltage corresponding relation, its operation principle is identical with above method embodiment, does not repeat.
Charging connection detection module 803, for detecting whether charger electrically connects with mobile terminal.Specifically, charge
Connection detection module 803 is whether to judge mobile terminal by detecting whether the rising edge of charger input current occurs saltus step
Electrically connected with charger, generation saltus step then determines that mobile terminal is electrically connected with charger and started to charge up.
Electric current acquisition module 804, for obtaining the electric current Iq that mobile terminal is inputted by current charging wire；
Voltage acquisition module 805, for obtaining the voltage Vq that mobile terminal is inputted by current charging wire；
Current charging wire resistance calculations module 806, for the current charging wire obtained according to the electric current acquisition module 804
The electric current Iq of input is preset to the charger electricity in mobile terminal in the output current of charger voltage preset module 802
Corresponding charger voltage Ve is searched in stream voltage corresponding table, passes through formula（Ve-Vq）/ Iq calculates the current charging wire
Resistance Rc；
Original-pack charging wire judge module 807, for working as described in being calculated according to current charging wire resistance calculations module 806
The resistance Rc of preceding charging wire and the preset resistive value Rn of original-pack charging wire are calculated | Rc-Rn |>During Rn*5%, the current charging is confirmed
Line is non-original-pack charging wire, is otherwise original-pack charging wire.Operation principle is identical with above method embodiment, does not repeat herein.
It should be appreciated that the foregoing is merely illustrative of the preferred embodiments of the present invention, it e insufficient to the limitation present invention's
Technical scheme, for those of ordinary skills, within the spirit and principles in the present invention, can add according to the above description
With increase and decrease, replace, convert or improve, and the technical scheme after all these increases and decreases, replacement, conversion or improvement, it should all belong to this
The protection domain of invention appended claims.
Claims (4)
1. a kind of recognition methods of original-pack charging wire, for mobile terminal recognize the current charging wire being connected with charger whether be
Original-pack charging wire, it is characterised in that comprise the following steps：
A, the resistance Rn for presetting original-pack charging wire；
B, the charger current voltage corresponding table for pre-setting output current of charger correspondence output voltage；
C, start to charge up when mobile terminal is detected after current charging wire is connected with charger；
D, the acquisition for mobile terminal charging input current Iq and input voltage Vq, and according to charger current voltage correspondence
The corresponding charger output voltage Ve of table search charging input current Iq, pass through formula（Ve-Vq）/ Iq calculates described current
The resistance Rc of charging wire, when | Rc-Rn |>During Rn*5%, mobile terminal confirms that current charging wire is non-original-pack charging wire, otherwise for
Original-pack charging wire；
The step B specifically includes following steps：Variable resistor will be connected between the voltage output pin and lower margin of charger
Rvx, and series electrical flow table is used to measure and flows through variable resistor Rvx electric current, meanwhile, charger voltage output pin with
Lower margin connection voltmeter is used for the output voltage Ve for measuring charger, then by adjusting the variable resistor Rvx, and records
Output current of charger charger current voltage corresponding table corresponding with output voltage；
The power invariability of charger, charger is when exporting different electric currents, and its output voltage has corresponding change, in order to adapt to
Different output current of charger, the corresponding charger output of the different electric currents of storage charger output is electric in the terminal in advance
The relation table of pressure.
2. the recognition methods of original-pack charging wire according to claim 1, it is characterised in that the step C specifically include as
Lower step：Whether the rising edge of detection charger input current occurs saltus step, occurs saltus step and then determines mobile terminal and charger
Electrical connection is started to charge up.
3. a kind of identifying system of original-pack charging wire, for mobile terminal recognize the current charging wire being connected with charger whether be
Original-pack charging wire, it is characterised in that the system includes：
Output current of charger voltage preset module, the charger for pre-setting output current of charger correspondence output voltage
Current Voltage corresponding table is in the mobile terminal；
Charging connection detection module, for detecting whether charger electrically connects with mobile terminal；
Electric current acquisition module, for obtaining the electric current Iq that mobile terminal is inputted by current charging wire；
Voltage acquisition module, for obtaining the voltage Vq that mobile terminal is inputted by current charging wire；
Current charging wire resistance calculations module, the electric current that the current charging wire for being obtained according to the electric current acquisition module is inputted
Iq is preset to the charger current voltage pair in the mobile terminal in the output current of charger voltage preset module
Answer and corresponding charger voltage Ve is searched in table, pass through formula（Ve-Vq）/ Iq calculates the resistance Rc of the current charging wire；
Original-pack charging wire judge module, for the current charging wire that is calculated according to current charging wire resistance calculations module
The preset resistive value Rn of resistance Rc and original-pack charging wire is calculated | Rc-Rn |>During Rn*5%, it is non-original-pack to confirm the current charging wire
Charging wire, is otherwise original-pack charging wire；
The output current of charger voltage preset module sets charger current voltage corresponding table to be that the voltage of charger is defeated
Go out connection variable resistor Rvx between pin and lower margin, and series electrical flow table is used to measure the electric current for flowing through variable resistor Rvx,
Meanwhile, output voltage Ve, Ran Houtong that voltmeter is used to measure charger are connected with lower margin in the voltage output pin of charger
The variable resistor Rvx is overregulated, and records output current of charger and the formation of output voltage corresponding relation；
The power invariability of charger, charger is when exporting different electric currents, and its output voltage has corresponding change, in order to adapt to
Different output current of charger, the corresponding charger output of the different electric currents of storage charger output is electric in the terminal in advance
The relation table of pressure.
4. the identifying system of original-pack charging wire according to claim 3, it is characterised in that the charging connection detection module
It is to judge whether mobile terminal electrically connects with charger by detecting whether the rising edge of charger input current occurs saltus step
, generation saltus step then determines that mobile terminal is electrically connected with charger and started to charge up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660729.1A CN104330638B (en) | 2014-11-19 | 2014-11-19 | A kind of recognition methods of original-pack charging wire and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660729.1A CN104330638B (en) | 2014-11-19 | 2014-11-19 | A kind of recognition methods of original-pack charging wire and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104330638A CN104330638A (en) | 2015-02-04 |
| CN104330638B true CN104330638B (en) | 2017-09-05 |
Family
ID=52405401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410660729.1A Active CN104330638B (en) | 2014-11-19 | 2014-11-19 | A kind of recognition methods of original-pack charging wire and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104330638B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553003A (en) * | 2015-12-25 | 2016-05-04 | 惠州Tcl移动通信有限公司 | Charge control method, mobile terminal and charge control system |
| CN105634072A (en) * | 2016-02-26 | 2016-06-01 | 郑州宇通客车股份有限公司 | Reliability judgment method and system for high-voltage link of electric vehicle charging system |
| CN106410882A (en) * | 2016-05-18 | 2017-02-15 | 深圳天珑无线科技有限公司 | Charger and charging method of USB charging system |
| CN107677923A (en) * | 2016-08-02 | 2018-02-09 | 昆山研达电脑科技有限公司 | The detecting system and method for tablet personal computer charging connection situation |
| CN108370171B (en) * | 2016-09-21 | 2022-02-22 | 北京小米移动软件有限公司 | Mobile terminal, charging method and charging system |
| WO2018053723A1 (en) * | 2016-09-21 | 2018-03-29 | 北京小米移动软件有限公司 | Power adapter, mobile terminal, and charging system |
| CN106546822B (en) * | 2016-10-26 | 2019-04-05 | 珠海市魅族科技有限公司 | Impedance detection method, chip and the mobile terminal of the charging circuit of load |
| CN106712219A (en) * | 2017-03-06 | 2017-05-24 | 北京小米移动软件有限公司 | Charging protection method and device |
| CN110045304B (en) * | 2019-04-16 | 2021-09-28 | 维沃移动通信有限公司 | Data line detection method, terminal device and computer readable storage medium |
| CN110888093A (en) * | 2019-11-29 | 2020-03-17 | Tcl移动通信科技（宁波）有限公司 | Display screen connection detection method and device, computer readable storage medium and terminal |
| CN113759259A (en) * | 2020-06-04 | 2021-12-07 | 北京小米移动软件有限公司 | Battery identification method, identification device, battery, identification device and storage medium |
| CN112098901B (en) * | 2020-08-12 | 2022-10-28 | 深圳供电局有限公司 | Cable identification method and device, computer equipment and readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937037A (en) * | 2009-07-01 | 2011-01-05 | 哈尔滨建成集团有限公司 | Device for automatically testing performance of cable bunch |
| CN203414556U (en) * | 2013-08-08 | 2014-01-29 | 华北电力大学（保定） | Multifunctional low-voltage line measuring instrument |
| CN103645400A (en) * | 2013-12-10 | 2014-03-19 | Tcl通讯（宁波）有限公司 | Charger detection system and charging detection method thereof |
| CN103954839A (en) * | 2014-03-17 | 2014-07-30 | 东风朝阳朝柴动力有限公司 | Electric control engine wire harness detection apparatus |
| CN104007342A (en) * | 2014-05-23 | 2014-08-27 | Tcl通讯（宁波）有限公司 | Charger, charger detection system and detection method thereof |
| CN104101808A (en) * | 2014-07-23 | 2014-10-15 | Tcl通讯（宁波）有限公司 | Charger detecting system and detecting method thereof and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100690729B1 (en) * | 2004-10-04 | 2007-03-09 | 엘지전자 주식회사 | Apparatus and method for controling operation of mobile communication terminal by detecting kind of battery |
| CN201666925U (en) * | 2009-08-17 | 2010-12-08 | 康佳集团股份有限公司 | Detector, mobile phone with detecting function and charger assembly |
| CN201479210U (en) * | 2009-08-18 | 2010-05-19 | 康佳集团股份有限公司 | Mobile terminal |
| CN201985408U (en) * | 2011-04-12 | 2011-09-21 | 蒋运红 | Rechargeable data cable |
-
2014
- 2014-11-19 CN CN201410660729.1A patent/CN104330638B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937037A (en) * | 2009-07-01 | 2011-01-05 | 哈尔滨建成集团有限公司 | Device for automatically testing performance of cable bunch |
| CN203414556U (en) * | 2013-08-08 | 2014-01-29 | 华北电力大学（保定） | Multifunctional low-voltage line measuring instrument |
| CN103645400A (en) * | 2013-12-10 | 2014-03-19 | Tcl通讯（宁波）有限公司 | Charger detection system and charging detection method thereof |
| CN103954839A (en) * | 2014-03-17 | 2014-07-30 | 东风朝阳朝柴动力有限公司 | Electric control engine wire harness detection apparatus |
| CN104007342A (en) * | 2014-05-23 | 2014-08-27 | Tcl通讯（宁波）有限公司 | Charger, charger detection system and detection method thereof |
| CN104101808A (en) * | 2014-07-23 | 2014-10-15 | Tcl通讯（宁波）有限公司 | Charger detecting system and detecting method thereof and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104330638A (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104330638B (en) | A kind of recognition methods of original-pack charging wire and system | |
| CN106646256A (en) | Battery capacity calculating method | |
| CN104101808B (en) | Charger detection system and its detection method and mobile terminal | |
| CN105445558A (en) | Method for detecting DC internal resistance of battery | |
| CN104810909A (en) | Quick charge control method and system | |
| CN104753093B (en) | Charger and charging control method | |
| CN103809124A (en) | Battery anomaly detection method and detection system | |
| CN204008938U (en) | Beam Detector | |
| CN109738804A (en) | A kind of lithium titanate battery mould group ultrasonic bonding rosin joint detection method and its detection device | |
| CN108562860A (en) | Electric energy meter two-way accessory power supply power consumption Auto-Test System and test method | |
| CN103033667A (en) | Current measurement device and method | |
| CN103869197B (en) | Electric automobile charge and discharge device double-fed can test system | |
| CN104035039A (en) | Device and method for rapidly estimating storage battery capacity | |
| CN104049161A (en) | Testing connecting structure and testing method for substation field lightning arrester without demounting primary high-voltage lead | |
| CN202177679U (en) | One-point grounding detection device for secondary coil neutral wire of voltage transformer | |
| CN104240036B (en) | A kind of Transient Voltage Stability quantitative estimation method based on critical system equiva lent impedance | |
| CN205231815U (en) | Electric automobile fast charging station | |
| CN107390019A (en) | The on-Line Monitor Device and its measurement determination methods of a kind of distribution box power consumption | |
| CN109374978A (en) | A kind of cable dielectric loss improvement measuring circuit and method based on bridge method | |
| CN205450243U (en) | Fault indicator coil tester | |
| CN107505518A (en) | Electrical equipment aging assessment based on device current ID | |
| CN203595757U (en) | Impedance testing device | |
| CN203275585U (en) | Power frequency discharge voltage test circuit of overvoltage protector | |
| CN203658504U (en) | Lithium battery multi-string protection plate detection device | |
| CN203941991U (en) | Batteries intelligence O&M device based on instant inserted and instant using type discharge load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211129 Address after: 264200 No. 369-11, Shuangdao Road, Weihai high district, Weihai City, Shandong Province Patentee after: Weihai Regional Innovation Center Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |
|
| TR01 | Transfer of patent right |