CN202189966U - Intelligent power plug - Google Patents
Intelligent power plug Download PDFInfo
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- CN202189966U CN202189966U CN2011203013344U CN201120301334U CN202189966U CN 202189966 U CN202189966 U CN 202189966U CN 2011203013344 U CN2011203013344 U CN 2011203013344U CN 201120301334 U CN201120301334 U CN 201120301334U CN 202189966 U CN202189966 U CN 202189966U
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- 230000007935 neutral effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 6
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- 238000012360 testing method Methods 0.000 claims description 3
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- 230000005611 electricity Effects 0.000 description 18
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- 230000005540 biological transmission Effects 0.000 description 4
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- 238000004134 energy conservation Methods 0.000 description 1
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Abstract
The utility model provides an intelligent power plug, which comprises a plug and an intelligent unit. The plug which is connected with electric equipment via a power line, and the intelligent unit is connected with the power line. The intelligent power plug is characterized in that the intelligent unit comprises a metering chip, a voltage processing circuit, a current processing circuit, a radiofrequency module and a power circuit, the voltage processing circuit, the current processing circuit and the radiofrequency module are connected with the metering chip, the power circuit supplies power for the metering chip and the radiofrequency module, the radiofrequency module is provided with an antenna and a communication interface, the antenna is in communication with a gateway, and the communication interface is in communication with the electric equipment. The intelligent power plug has the advantages of simplicity and easiness in use, high metering precision and the like, energy can be saved, furthermore, an equipment structure of an intelligent power consumption structure further can be simplified after the plug is applied into an intelligent power consumption management system, and cost for intelligence of the total electric equipment can be greatly lowered.
Description
Technical field
The utility model belongs to Single-phase plug jack technology field, is specifically related to a kind of intelligent power plug with metering and communication function.
Background technology
In recent years, be the reply climate change, ensure energy security, promote sustainable economic development, accelerated the development process of clean energy resource, intelligent grid, Internet of Things, a large amount of intellectual technologies and achievement obtain promotion and application rapidly in all trades and professions.Yet with regard to present most of power consumption equipments, we can't know at any time also how many electric weight are their reality consumed actually, can measure with the intelligent power equipment that shows self energy consumption to have the huge applications prospect for managing power consumption.
For solving the managing power consumption problem, prior art has proposed the smart jack solution.As shown in Figure 1, this smart jack application scenarios comprises capital equipments such as electric energy meter, smart jack and home gateway, and wherein electric energy meter is used for the overall energy value of metering user; Smart jack is used to gather the energy value situation of each power consumption equipment, gathers the electricity consumption data and the parameter of each electrical equipment, and can pass through WSN (Wireless Sensor Network, wireless sensor network) network, and these information are sent to home gateway; Home gateway can connect through WSN network and each smart jack, and each smart jack sends to home gateway with its electricity consumption data and parameter, and home gateway sends to dsm server with electricity consumption data processing conversion back through the Internet.Based on these electricity consumption data and parameter, dsm server can be realized long-distance intelligent control and management to each electrical equipment through gateway, and then formulates more effective measures to effectively increase energy savings and reduce material consumption through the energy consumption situation to each electrical equipment.
Though the power consuming administrative system based on smart jack among Fig. 1 also can be realized the user power utilization intelligent management; But also there are some defectives: the intelligent inreal intellectuality that realizes of (1) power consumption equipment; Power consumption equipment itself does not possess metering and communication function; So this intellectuality is passive fully concerning power consumption equipment, be a kind of unidirectional reception controlled function fully, and power consumption equipment can only be passive is connected on the smart jack.(2) the general volume of smart jack is bigger, and cost is higher, and smart jack normally is installed on the existing common socket, and the plug of power consumption equipment is inserted on the smart jack more then, uses very inconvenient.
The utility model content
The purpose of the utility model is to provide a kind of intelligent power plug with metering and communication function.This intelligent plug is through having inserted computation chip and intelligence control circuit in the power line between traditional plug and power consumption equipment; And in the conventional power source line compound transmission data wire with receive data wire, make the power line that connects power consumption equipment not only comprise live wire, zero line, ground wire, also comprised Data Receiving and sent line; This intelligent plug has been realized function of measuring through computation chip, has realized the communication function of power consumption equipment and external smart home network through the radio-frequency module that receives line, transmission line and control circuit.
For this reason, the utility model is realized through following technical scheme:
A kind of intelligent power plug, it comprises plug that is connected through power line with power consumption equipment and the intelligent cell that is connected with power line, said intelligent cell comprises computation chip; The voltage treatment circuit that is connected with computation chip, current processing circuit and radio-frequency module; And be the power circuit of computation chip and radio-frequency module power supply, have antenna that communicates with gateway and the communication interface that communicates with power consumption equipment on the said radio-frequency module.
Wherein, be connected with the relay that is used to control the power consumption equipment on off operating mode on the said radio-frequency module, this relay is positioned on the live wire of power line.
Wherein, said radio-frequency module comprises interconnective radio frequency chip and micro-control unit, and said radio frequency chip is connected with an antenna, and said micro-control unit is provided with and is respectively applied for the communication interface that connects computation chip and power consumption equipment.
Wherein, comprise the temperature sensor that is used for the test plug temperature in the said radio-frequency module, this temperature sensor is connected with micro-control unit in the radio-frequency module.
Wherein, said radio-frequency module comprises the leakage protection circuit that is used to detect power line moderate heat line current and neutral line current, and this leakage protection circuit is connected with micro-control unit in the radio-frequency module.
Wherein, be connected with the data wire that carries out serial communication with power consumption equipment on the said communication interface, said data wire is compound in the power line.
Wherein, said communication interface adopts RS-232 interface or RS-485 interface.
Wherein, said computation chip adopts electric energy computation chip.
Wherein, Said power circuit comprises halfwave rectifier unit, partial pressure unit, capacitor filtering unit, voltage regulation unit; Said halfwave rectifier unit carries out the rectification processing to the 220V alternating voltage that obtains from low-voltage power line and obtains direct voltage; Obtain stable power behind this direct voltage process capacitor filtering unit, partial pressure unit and the voltage regulation unit, and export this power supply to computation chip and radio-frequency module.
Wherein, said voltage treatment circuit comprises divider resistance and filter capacitor, and this voltage treatment circuit will reach the computation chip after process divider resistance dividing potential drop, the filter capacitor filtering from the voltage signal that power line obtains successively.
Wherein, said current processing circuit comprises shunt resistance and filter capacitor, and the current signal that this current processing circuit will obtain from the live wire of power line is successively through reaching the computation chip after shunt resistance shunting, the filter capacitor filtering; And the current signal that will obtain from the zero line of power line is successively through reaching the computation chip after shunt resistance shunting, the filter capacitor filtering.
Wherein, adopt Zigbee, WIA or WIFI to communicate between said gateway and the radio-frequency module.
The beneficial effect of the utility model is:
1) this intelligent power plug is measured and Based Intelligent Control power consumption equipment through sensing network, not only can energy savings; This intelligent plug with metering and communication function is applied in the intelligent power management system; Compare with the intelligent power management system based on smart jack of the prior art; Also simplify the device structure of intelligent power system, greatly reduced the intelligentized cost of whole power consumption equipment; In addition, this intelligent power plug also has the usefulness of being simple and easy to, the measuring accuracy advantages of higher.
2) this intelligent power plug is through having inserted electric energy computation chip and intelligence control circuit on the power line between traditional plug and the power consumption equipment; Under the prerequisite of the internal circuit configuration that need not change power consumption equipment; Running parameter with regard to the energy measurement power consumption equipment also sends this parameter to user communication terminal through the WSN network, and can control the switching state and the mode of operation of power consumption equipment according to the control command that receives through the WSN network.
3) intelligent plug of the utility model can be good at adapting to the needs of intelligent grid and Smart Home construction development; Realized the intellectuality of the electric terminal in the intelligent grid; Reduced to realizing the intelligent technical sophistication degree that changes the power consumption equipment internal circuit configuration of power consumption equipment; Strengthen the competitiveness of marketing; Reduce the intelligent grid construction cost, and in intelligent perception interdynamic service system, used the utility model intelligent plug control power consumption equipment running status can help the user to establish good consumption habit, thus energy savings consumption.
Description of drawings
Fig. 1 is a system model of realizing the household electrical appliances Based Intelligent Control based on smart jack of the prior art;
The system model figure that Fig. 2 provides for the utility model embodiment based on intelligent power plug realization household electrical appliances Based Intelligent Control;
Fig. 3 is the structural representation of intelligent power plug among the utility model embodiment;
Fig. 4 is the circuit theory diagrams of power circuit;
Fig. 5 is the circuit theory diagrams of voltage treatment circuit;
Fig. 6 is the circuit theory diagrams of current processing circuit;
Fig. 7 is the structural representation of radio-frequency module.
Embodiment
In order to make those skilled in the art person understand the technical scheme of the utility model better, the intelligent power plug of the utility model is done further detailed explanation below in conjunction with accompanying drawing and execution mode.
As shown in Figure 2, the capital equipment of this system model comprises intelligent plug 1, power consumption equipment 2, home gateway 3 and dsm server 4 etc.Intelligent plug 1 has metering and communication function; Be used to gather the energy value situation of each power consumption equipment; And electricity consumption data and the running parameter of gathering each power consumption equipment are (for example; Temperature, humidity, wind speed, wind direction etc.), and can pass through the WSN network, these electricity consumption data and running parameter are sent to home gateway 3; Home gateway 3 can connect through WSN network and each intelligent plug 1 that inserts the body of wall socket; Each intelligent plug 1 sends to home gateway 3 with its electricity consumption data and parameter, and home gateway 3 sends to dsm server 4 with electricity consumption data processing conversion back through the Internet.Based on these electricity consumption data and parameter, dsm server 4 can be realized long-distance intelligent control and management to each power consumption equipment 2 through home gateway 3, and then formulates more effective measures to effectively increase energy savings and reduce material consumption according to the energy consumption situation of each power consumption equipment.
As shown in Figure 3; This intelligent power plug 1 comprises the plug 11 (adopting common traditional plug) that is connected through power line 12 with power consumption equipment 2; Be connected with one on the power line 12 and have the metering and the intelligent cell of communication function; The enclosure that this intelligent cell can be installed in plug 11 is connected with power line 12, also can be directly installed on the power line 12 between plug 11 and the power consumption equipment 2.This intelligent cell comprises computation chip 13; The voltage treatment circuit 14 that is connected with computation chip 13, current processing circuit 15 and radio-frequency module 16; And be connected and provide the power circuit 17 of working power with radio-frequency module 16 with computation chip 13.The power line 12 that is used for attachment plug and power consumption equipment comprises: live wire L, zero line N and ground wire PE; The live wire of power line is connected with power circuit 17, voltage treatment circuit 14 and current processing circuit 15 respectively with zero line; The ground wire of power line 12 is drawn from the housing of plug 11 directly and is connected with power consumption equipment 2, and the communication interface on the radio-frequency module 16 communicates with reception data wire RXD and power consumption equipment 2 through two transmission data wire TXD that are compound in the power line.In addition, this intelligent cell can also increase a relay 18 that is used to control the power consumption equipment on off operating mode according to user's request, and this relay is connected between radio-frequency module 16 and the traditional plug 11.Following mask body is introduced the function and the structure of each several part:
This current processing circuit can use live wire electric current and the neutral line current of responding to power consumption equipment that this plug is connected on current induction method is wrapped in power line through lead live wire L and the zero line N, and sends the induced current of being gathered (comprising live wire electric current and neutral line current) to electric energy computation chip; Electric energy computation chip calculates the electric current through this power consumption equipment according to the induced current of being gathered, and calculates the energy value of this electrical equipment through the potentiometer after this electric current combination voltage treatment circuit voltage division processing.The operation principle of current induction method is: with the live wire of lead winding power line, when passing through electric current in the live wire of power line, produce the live wire electric current in the loop at this lead place; Equally, with the zero line of lead winding power line, when passing through electric current in the zero line of power line, the loop at this lead place produces neutral line current, and the summation of live wire electric current and neutral line current is induced current.Then,, calculate the electric current in its power line that twines, the electric current of the power consumption equipment that just flows through this intelligent plug and connected according to the winding number of turn of this lead and induced current size.
Computation chip 13; Be used to obtain the electric current after the shunting of voltage treatment circuit voltage after partial and current processing circuit, and can be according to voltage, electric current, active power, reactive power, power factor, mains frequency, apparent power and the power consumption of this voltage and current metering power consumption equipment.This computation chip can adopt electric energy computation chip.
Radio-frequency module 16; Be a kind of unit with radio communication function, as shown in Figure 7, form for radio-frequency module in the frame of broken lines; Mainly comprise radio frequency chip 161 and micro-control unit 162 (Micro Control Unit; MCU), be connected with an antenna 165 on the radio frequency chip, radio frequency chip communicates through this antenna and home gateway 23; Micro-control unit 162 is provided with the communication interface 163 and the communication interface 164 that is used to be connected power consumption equipment that is used to connect computation chip; Be connected with the temperature sensor 19 that is used for the test plug temperature on the micro-control unit 162 when temperature sensor 224 detects the plug temperature when being higher than the preset temperature threshold values, the temperature sensor control relay breaks off; Micro-control unit 162 also can connect the leakage protection circuit that is used to detect power line moderate heat line current and neutral line current; The difference that detects live wire electric current and neutral line current when leakage protection circuit is when setting threshold values; Be judged to be electric leakage, this circuit be set prevent the power consumption equipment electric leakage.
The communication interface 164 that is used to connect power consumption equipment on the radio-frequency module 16 can be RS-232 interface or RS-485 interface, and it is through two data wires: promptly send data wire TXD and receive data wire RXD, realize the serial communication with power consumption equipment; The live wire L that radio-frequency module 16 picks out, zero line N, send data wire TXD and receive data wire RXD and be connected with power consumption equipment 2 respectively from the ground wire PE that plug casing directly picks out.The user can obtain the information such as operating state, device parameter of power consumption equipment from power consumption equipment, after handling through microprocessing unit, sends through radio frequency chip again.If the user need obtain the electricity consumption data of power consumption equipment 2, can send instruction to the radio-frequency module 16 of intelligent plug 1 through home gateway 3, at this moment, radio-frequency module 16 will send to home gateway 3 from the electricity consumption data that computation chip 13 obtains.
The course of work of this intelligent power plug is following:
The utility model is the intelligent plug of instant inserted and instant using type, and supports standard communication protocol and communication function, and these characteristics all make the intelligent plug of the utility model have bigger advantage.According to the difference of applied environment, the function of intelligent plug both can also can be integrated in the power consumption equipment to realize on the plug.
Simultaneously, the intelligent plug of the utility model is an equipment of supporting the metering engine, and this intelligent plug provides a kind of Based Intelligent Control and communication function are incorporated into the mode in each part equipment.
In addition, the intelligent plug of the utility model supports communication protocol such as WIA, ZigBee, WIFI and power consumption extremely low, and wall can remain intact, and maintenance cost is minimized, can arbitrarily moves, not limit by the place.
This has the intelligent power plug of metering and communication function; Through sensing network power consumption equipment is measured and Based Intelligent Control, not only can energy savings, compare the intelligent power management system based on smart jack recited above; Intelligent power management system based on intelligent plug with metering and communication function; Simplify the device structure of intelligent power system, greatly reduced the intelligentized cost of whole power consumption equipment, and; This intelligent power plug has the usefulness of being simple and easy to, the measuring accuracy advantages of higher.
Moreover, use this intelligent plug to control all right balanced load of electricity consumption situation or the peak of power consumption of power consumption equipment, because the installed capacity that peak of power consumption requires at present is considerably beyond actual needs.Later on management of power use mechanism also need temporarily place resting state with idle household appliances, shop equipment and office's electric light with the mode of contracting with the client, thereby reduces whole energy consumption.
In addition; This intelligent power plug is applied in the energy conservation mechanism; Can also predict reckoning to actual electricity consumption according to the electricity consumption rule of enterprise, community and even family, guarantee to supply an amount of low-cost electric energy at any time, and generated energy from a power plant is optimized.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although the utility model has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can make amendment or be equal to replacement the embodiment of the utility model; And do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (12)
1. intelligent power plug, it comprises plug that is connected through power line with power consumption equipment and the intelligent cell that is connected with power line, it is characterized in that: said intelligent cell comprises computation chip; The voltage treatment circuit that is connected with computation chip, current processing circuit and radio-frequency module; And be the power circuit of computation chip and radio-frequency module power supply, have antenna that communicates with gateway and the communication interface that communicates with power consumption equipment on the said radio-frequency module.
2. intelligent power plug according to claim 1 is characterized in that: be connected with the relay that is used to control the power consumption equipment on off operating mode on the said radio-frequency module, this relay is positioned on the live wire of power line.
3. intelligent plug according to claim 1 and 2; It is characterized in that: said radio-frequency module comprises interconnective radio frequency chip and micro-control unit; Said radio frequency chip is connected with an antenna, and said micro-control unit is provided with and is respectively applied for the communication interface that connects computation chip and power consumption equipment.
4. intelligent plug according to claim 3 is characterized in that: comprise the temperature sensor that is used for the test plug temperature in the said radio-frequency module, this temperature sensor is connected with micro-control unit in the radio-frequency module.
5. intelligent plug according to claim 3 is characterized in that: said radio-frequency module comprises the leakage protection circuit that is used to detect power line moderate heat line current and neutral line current, and this leakage protection circuit is connected with micro-control unit in the radio-frequency module.
6. intelligent plug according to claim 3 is characterized in that: be connected with the data wire that carries out serial communication with power consumption equipment on the said communication interface, said data wire is compound in the power line.
7. intelligent plug according to claim 6 is characterized in that: said communication interface adopts RS-232 interface or RS-485 interface.
8. intelligent plug according to claim 1 and 2 is characterized in that: said computation chip adopts electric energy computation chip.
9. intelligent plug according to claim 1 and 2; It is characterized in that: said power circuit comprises halfwave rectifier unit, partial pressure unit, capacitor filtering unit, voltage regulation unit; Said halfwave rectifier unit carries out the rectification processing to the 220V alternating voltage that obtains from low-voltage power line and obtains direct voltage; Obtain stable power behind this direct voltage process capacitor filtering unit, partial pressure unit and the voltage regulation unit, and export this power supply to computation chip and radio-frequency module.
10. intelligent plug according to claim 1 and 2; It is characterized in that: said voltage treatment circuit comprises divider resistance and filter capacitor, and this voltage treatment circuit will reach the computation chip after process divider resistance dividing potential drop, the filter capacitor filtering from the voltage signal that power line obtains successively.
11. intelligent plug according to claim 1 and 2; It is characterized in that: said current processing circuit comprises shunt resistance and filter capacitor, and the current signal that this current processing circuit will obtain from the live wire of power line is successively through reaching the computation chip after shunt resistance shunting, the filter capacitor filtering; And the current signal that will obtain from the zero line of power line is successively through reaching the computation chip after shunt resistance shunting, the filter capacitor filtering.
12. intelligent plug according to claim 1 and 2 is characterized in that: adopt Zigbee, WIA or WIFI to communicate between said gateway and the radio-frequency module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203013344U CN202189966U (en) | 2011-08-18 | 2011-08-18 | Intelligent power plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203013344U CN202189966U (en) | 2011-08-18 | 2011-08-18 | Intelligent power plug |
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| CN202189966U true CN202189966U (en) | 2012-04-11 |
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| CN2011203013344U Expired - Lifetime CN202189966U (en) | 2011-08-18 | 2011-08-18 | Intelligent power plug |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238415A (en) * | 2014-09-09 | 2014-12-24 | 上海路美思电气有限公司 | Wi-Fi plug with electric leakage and over-current protection functions and intelligent household appliance control system applying same |
| CN104678858A (en) * | 2015-02-11 | 2015-06-03 | 上海路美思电气有限公司 | Wi-Fi conversion socket with over-current protection and energy statistics and intelligent household appliance control system |
| CN105022367A (en) * | 2014-04-15 | 2015-11-04 | 智上科技股份有限公司 | Portable energy management device, energy management module and energy management method |
| CN105549485A (en) * | 2015-12-16 | 2016-05-04 | 华南理工大学 | Household intelligent power utilization control terminal based on DSP |
| CN105739400A (en) * | 2016-05-05 | 2016-07-06 | 泰诺博依斯克有限公司 | Electric appliance control device and control method |
| CN106207659A (en) * | 2016-08-31 | 2016-12-07 | 宁波乔普电器有限公司 | A kind of service life length attaching plug |
| CN106329241A (en) * | 2016-08-30 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Power line plug, power line structure, and electric appliance equipment |
| CN106441444A (en) * | 2016-10-28 | 2017-02-22 | 贵州电网有限责任公司贵阳供电局 | ZigBee-based electric energy collecting and environment sensing node and data transmission method |
| CN106803631A (en) * | 2016-12-30 | 2017-06-06 | 宁波市恒祺电子科技有限公司 | Leakage protecting plug, water-heater system and its method |
| CN107658645A (en) * | 2016-07-26 | 2018-02-02 | 台达电子工业股份有限公司 | Power plug arrangement and its excess temperature protection method |
| CN107742808A (en) * | 2017-11-17 | 2018-02-27 | 英业达科技有限公司 | Electric power connection line |
| CN108492467A (en) * | 2018-03-26 | 2018-09-04 | 康体佳智能科技（深圳）有限公司 | A kind of method of commerce being suitable for charging terminal or electric terminal |
-
2011
- 2011-08-18 CN CN2011203013344U patent/CN202189966U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9471124B2 (en) | 2014-04-15 | 2016-10-18 | Metalligence Technology Corporation | Portable energy management device, power management module, and power management method |
| CN105022367A (en) * | 2014-04-15 | 2015-11-04 | 智上科技股份有限公司 | Portable energy management device, energy management module and energy management method |
| TWI513134B (en) * | 2014-04-15 | 2015-12-11 | Metalligence Technology Corp | Portable energy management device, power management module, and power management method |
| CN104238415A (en) * | 2014-09-09 | 2014-12-24 | 上海路美思电气有限公司 | Wi-Fi plug with electric leakage and over-current protection functions and intelligent household appliance control system applying same |
| CN104678858A (en) * | 2015-02-11 | 2015-06-03 | 上海路美思电气有限公司 | Wi-Fi conversion socket with over-current protection and energy statistics and intelligent household appliance control system |
| CN105549485A (en) * | 2015-12-16 | 2016-05-04 | 华南理工大学 | Household intelligent power utilization control terminal based on DSP |
| CN105739400A (en) * | 2016-05-05 | 2016-07-06 | 泰诺博依斯克有限公司 | Electric appliance control device and control method |
| CN107658645A (en) * | 2016-07-26 | 2018-02-02 | 台达电子工业股份有限公司 | Power plug arrangement and its excess temperature protection method |
| CN106329241A (en) * | 2016-08-30 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Power line plug, power line structure, and electric appliance equipment |
| CN106207659A (en) * | 2016-08-31 | 2016-12-07 | 宁波乔普电器有限公司 | A kind of service life length attaching plug |
| CN106441444A (en) * | 2016-10-28 | 2017-02-22 | 贵州电网有限责任公司贵阳供电局 | ZigBee-based electric energy collecting and environment sensing node and data transmission method |
| CN106803631A (en) * | 2016-12-30 | 2017-06-06 | 宁波市恒祺电子科技有限公司 | Leakage protecting plug, water-heater system and its method |
| CN106803631B (en) * | 2016-12-30 | 2019-05-07 | 宁波市恒祺电子科技有限公司 | Leakage protecting plug, water-heater system |
| CN107742808A (en) * | 2017-11-17 | 2018-02-27 | 英业达科技有限公司 | Electric power connection line |
| CN108492467A (en) * | 2018-03-26 | 2018-09-04 | 康体佳智能科技（深圳）有限公司 | A kind of method of commerce being suitable for charging terminal or electric terminal |
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Effective date of registration: 20140326 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
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