CN104810728A - Intelligent touch distribution box - Google Patents

Intelligent touch distribution box Download PDF

Info

Publication number
CN104810728A
CN104810728A CN201510213717.9A CN201510213717A CN104810728A CN 104810728 A CN104810728 A CN 104810728A CN 201510213717 A CN201510213717 A CN 201510213717A CN 104810728 A CN104810728 A CN 104810728A
Authority
CN
China
Prior art keywords
circuit
electrically connected
resistance
microcontroller
voltage
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.)
Granted
Application number
CN201510213717.9A
Other languages
Chinese (zh)
Other versions
CN104810728B (en
Inventor
李卫平
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.)
CHONGQING KUNGUAN ELECTRICAL APPLIANCE CO.,LTD.
Original Assignee
Xinyu Yu Hao Development In Science And 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 Xinyu Yu Hao Development In Science And Technology Co Ltd filed Critical Xinyu Yu Hao Development In Science And Technology Co Ltd
Priority to CN201510213717.9A priority Critical patent/CN104810728B/en
Publication of CN104810728A publication Critical patent/CN104810728A/en
Application granted granted Critical
Publication of CN104810728B publication Critical patent/CN104810728B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B15/00Supervisory desks or panels for centralised control or display
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24Circuit arrangements for boards or switchyards

Abstract

The invention provides an intelligent touch distribution box comprising a micro controller, an inverted switch, a leakage detection circuit, a main current detection circuit, a measuring circuit, a voltage detection circuit, an AC-DC power module, a DC-DC power supply, a reference voltage circuit, a branch current detection circuit, a branch output controlling circuit, a touch screen, a remote communication module, a button, a buzzer, a storage device, a measurement calibration auxiliary circuit and an output self locking circuit which are connected electrically. The distribution box has the advantages that the requirements of modern society, particularly modern family power consumption management can be met, circuits can be managed and controlled remotely, the managing efficiency is improved, operation is facilitated significantly, and the safety is high.

Description

Intelligent touch distribution box
Technical field: the present invention relates to a kind of for low voltage power distribution network; managed load is carried out to timing automatic unlatching, closed load; overload, short circuit, under-voltage, overvoltage, electric leakage such as to protect automatically at the distribution box of function, particularly a kind ofly adopt touch screen operation, have enrich man-machine interface, can the intelligent touch distribution box of remote access and data processing.
Background technology: in existing low voltage power distribution network, generally adopts air switch to carry out simple artificial connect and cutting off to load, and short circuit, overload carry out the management such as protecting.The deficiency that existing this device in use exists is: the demand that 1, can not adapt to modern society's especially Modern Family's management of power use, because this kind equipment not tool is intelligent, can not record trouble, event information, can not carry out arranging automatic operation, without the function such as monitoring, display, inquiry of electricity consumption situation, thus can not adapt to modern society especially Modern Family to the demand of the management of power use; 2, can not remote operation, because the fast pace of the modern life, add the appearance of remote control technology, people wish to carry out remote control to devices such as the electrical equipment in family outside very much, can can not meet this requirement by existing device, this makes the requirement of people be not being met; 3, operation inconvenience, the exposure wiring that need open the lid operates, and forms certain potential hazard to operating personnel; 4, can only protect overload and electric leakage, protection can not be realized to overvoltage.
Summary of the invention: main purpose of the present invention is, for the deficiency that can not adapt to modern society's especially Modern Family's management of power use demand that the existing power distribution equipment for low voltage power distribution network in use exists, and propose a kind of can detect total road in real time electric current and power, branch road electric current, and the intelligent touch distribution box that can control each branch road; Its secondary objective is, the tangible operation of device, straighforward operation, and the fail safe of device is good.
Object of the present invention can be realized by following technical proposals, a kind of intelligent touch distribution box, it is characterized in that, it comprises microcontroller, two-direction switch, electric-leakage detection circuit, total current testing circuit, metering circuit, voltage detecting circuit, AC-DC power module, DC-DC power source, reference voltage circuit, branch current testing circuit, branch road output control circuit; Two-direction switch taps into line, and respectively with electric-leakage detection circuit, total current testing circuit being electrically connected with branch current testing circuit, voltage detecting circuit, AC-DC power module, branch road output control circuit respectively by line bank; Electric-leakage detection circuit is also electrically connected with microcontroller; Total current testing circuit is also electrically connected with metering circuit; Metering circuit is also electrically connected with microcontroller, voltage detecting circuit respectively; AC-DC power module is electrically connected with DC-DC power source; DC-DC power source is electrically connected with reference voltage circuit.
Described electric-leakage detection circuit comprises current transformer socket, amplifier, resistance, electric capacity connect to form through conventional circuit mode.
Described total current testing circuit comprises current transformer, resistance, electric capacity connect to form through conventional circuit mode.
Described metering circuit measures total current, total voltage, gross power, total electricity, and it comprises chip, transformer, resistance, electric capacity, connects to form through conventional circuit mode.
Described voltage detecting circuit comprises voltage transformer resistance, electric capacity connects to form through conventional circuit mode.
Described reference voltage circuit comprises amplifier, resistance, electric capacity connect to form through conventional circuit mode.
Described branch current testing circuit comprises current transformer, amplifier, resistance, electric capacity connect to form through conventional circuit mode.
Described branch road output control circuit comprises relay, diode, triode, resistance connect to form through conventional circuit mode.
For ease of display and operation, microcontroller is electrically connected with touch-screen.
For ease of Long-distance Control and operation, microcontroller is electrically connected with remote communication module.
For Perfected device and easy to use, be also provided with in this device button, buzzer, memory, measurement and calibration auxiliary circuit, output from lock circuit.
Beneficial effect of the present invention is: the demand that 1, can adapt to modern society's especially Modern Family's management of power use, because this device has intelligent, it can record trouble, event information, thus can find out fault origination point soon and process in time; Setting can be carried out to device and make its automatic operation; and have electricity consumption situation monitored, show, the function such as inquiry; it can good protective circuit; avoid circuit because circuit overloads or short circuit etc. to cause danger, thus it adapt to very much modern society especially Modern Family to the demand of the management of power use.2, long-rangely circuit can be managed and controls, this is, is provided with remote communication module in this device, and it is electrically connected with microcontroller, namely people directly controls each load in circuit by communication module and microcontroller long-range, improves the efficiency of management.3, obviously easy to operate, fail safe is good, because be provided with touch-screen in this device, various situation in circuit, just can open-and-shutly be shown by touch-screen, is beneficial to very much the management to circuit; This device does not open the lid and exposes the operation carried out of wiring, and operation is carried out all on the touchscreen, and the fail safe of operating personnel can be made good.
Accompanying drawing illustrates:
Fig. 1 is circuit structure block diagram of the present invention;
Fig. 2 is electric-leakage detection circuit structural representation in the present invention;
Fig. 3 is total current testing circuit structural representation in the present invention;
Fig. 4 measures electrical block diagram in the present invention;
Fig. 5 is voltage detecting circuit structural representation in the present invention;
Fig. 6 is reference voltage circuit structural representation in the present invention;
Fig. 7 is branch current testing circuit structural representation in the present invention;
Fig. 8 is branch road output control circuit structural representation in the present invention;
Fig. 9 is measurement and calibration auxiliary circuit structural representation in the present invention;
Figure 10 is output from lock circuit structural representation in the present invention;
Figure 11 is job run flow chart of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment:
Embodiment 1: see accompanying drawing 1, a kind of intelligent touch distribution box, it forms primarily of microcontroller 1, two-direction switch 2, electric-leakage detection circuit 3, total current testing circuit 4, metering circuit 5, voltage detecting circuit 6, AC-DC power module 7, DC-DC power source 8, reference voltage circuit 9, branch current testing circuit 10, branch road output control circuit 11, and the chip model that wherein microcontroller 1 is used is STM32F103RB; Two-direction switch 2 taps into line, and respectively with electric-leakage detection circuit 3, total current testing circuit 4 and by line bank A respectively with branch current testing circuit 10, voltage detecting circuit 6, AC-DC power module 8, branch road output control circuit 11 be electrically connected; Electric-leakage detection circuit 3 is also connected with microcontroller electricity 1; Total current testing circuit 4 is electrically connected with metering circuit 5; Metering circuit 5 is also electrically connected 6 with microcontroller 1, voltage detecting circuit respectively; AC-DC power module 7 is electrically connected with DC-DC power source 8; DC-DC power source 8 is electrically connected with reference voltage circuit 9.For ease of display, easy to operate, Long-distance Control and Perfected device, be also provided with touch-screen 12, remote communication module 13, button 14, buzzer 15, memory 16, measurement and calibration auxiliary circuit 17 in this device, export seat 19 output from lock circuit 18, branch road.Touch-screen 12, remote communication module 13, button 14, buzzer 15, memory 16, measurement and calibration auxiliary circuit 17 are electrically connected with microcontroller 1 respectively.Be electrically connected with microcontroller 1 output from lock circuit 18 one end, the other end is electrically connected with branch road output control circuit 11.
Described electric-leakage detection circuit 3 comprises current transformer socket, amplifier, resistance, electric capacity connect to form through conventional circuit mode, see accompanying drawing 2, J9 is zero sequence current mutual inductor socket, when power line there being leakage current, zero-sequence transformer produces induced current, sample resistance R0 obtains induced voltage, send U19 to carry out signal amplification through R1, amplifying signal delivers to reverse input end 2 pin of U20 through R4.Positive input 3 pin of U20 provides being biased of a 0.75V by reference voltage V REF, the reverse signal voltage making the output of U20 superpose 2 pin on 1.5V direct current send microcontroller again, is convenient to microcontroller and carries out AD conversion and calculate its value size to judge whether power line leaks electricity.
Described total current testing circuit 4 comprises current transformer, resistance, electric capacity connects to form through conventional circuit mode, is current transformer see accompanying drawing 3, T9.When the live wire passing T9 there being electric current, the secondary generation induced current of T9, sample resistance R108 obtains induced voltage, send 16 pin and 15 pin of U22 through R109 and R110, carries out relevant metering by special chip U22.
Described metering circuit 5 measures total current, total voltage, gross power, total electricity, it comprises chip, crystal oscillator, resistance, electric capacity, connect to form through conventional circuit mode, see accompanying drawing 4, the model of chip is CS5460A, the instantaneous voltage signal of the transient current signal and 9 that chip inputs 15,16 pin, 10 pin inputs calculates, and obtains the current effective value of alternating current, voltage effective value, effective power etc., reads for microcontroller 1, process.Microcontroller 1, by the control of 5,6,7,19,23 pin, uses SPI communication initialization U22, and reads the related data of metering.
Described voltage detecting circuit 6 comprises voltage transformer resistance, electric capacity connects to form through conventional circuit mode, is voltage transformer see accompanying drawing 5, T10, L220 and N220 connects live wire and the zero line of alternating current respectively.When there is voltage at L220 and N220 two ends, carry out current limliting through R118 and flow through the elementary of T10, go out phase induced current at the secondary induction of T10, and obtain induced voltage on sample resistance R113, send 9 pin and 10 pin of U22 again through R114, R115, carry out relevant metering by special chip U22.
Described reference voltage circuit 9 comprises amplifier, resistance, electric capacity connect to form through conventional circuit mode, see accompanying drawing 6, + 5V the circuit of system exports after R102 current limliting, U27 fiducial chip LM431 precisely stablizes 2.5V voltage, reference voltage V REF is obtained, for signal detection amplifying circuit provides stable reference voltage and bias voltage after C57, C58 filtering.
Described branch current testing circuit 10 comprises current transformer, amplifier, resistance, electric capacity connects to form through conventional circuit mode, see accompanying drawing 7, the corresponding branch road quantity of branch current testing circuit 10 has multichannel, diagram is a wherein road, T2 is current transformer, when the branch line through it there being electric current, electric current is gone out at the secondary induction of T2, sample resistance R20 obtains sampling voltage, U3 is sent to amplify through R21, positive input 3 pin inputting the reverse input end 2 pin .U4 of U4 again through R24 provides being biased of a 0.75V by reference voltage V REF, the reverse signal voltage making the output of U4 superpose 2 pin on 1.5V direct current send microcontroller again, be convenient to microcontroller carry out AD conversion and measure branch current.
Described branch road output control circuit 11 comprises relay, diode, triode, resistance connect to form through conventional circuit mode, and see accompanying drawing 8, the corresponding branch road quantity of branch road output control circuit has multichannel, and diagram is a wherein road.The output of branch road is controlled by relay K 2, and common port 3 pin of K2 connects 1 pin exporting seat J2, and normal-closed end 5 pin connects emergency service input, and Chang Kaiduan 4 pin connects normal power supply input.When system cisco unity malfunction, two-direction switch is that emergency service line is powered, and cuts off the power supply of normal power supply line, and control system is quit work, and common port 3 pin and normal-closed end 5 pin of K2 are connected, and output seat J2 can be branch circuit load provides emergence power.When the systems are operating normally, two-direction switch cuts off the power supply of emergency service line, for normal power supply line is powered.Microcontroller is carried out the closed of control K2 by the conducting of control signal RLY1 control Q2 or cut-off and is disconnected as required.When K2 closes, common port 3 pin and Chang Kaiduan 4 pin are connected, and J2 can be branch circuit load and powers, and during disconnection, common port 3 pin and 5 pin are connected, and cut off the power supply of branch road.
Described measurement and calibration auxiliary circuit 17, see accompanying drawing 9, measurement and calibration auxiliary circuit: in order to detect accurately electric current, voltage and calculate, computation chip needs the data calibration of being correlated with before calculating input signal.System, by the cut-off of microcontroller 1 control Q9, Q11 and conducting control relay K9, K10, is carried out blocking or provide the operations such as the input signal of U22, is reduced manual steps, carry out factory calibration to metering circuit.
Describedly comprise chip output from lock circuit 18, resistance, electric capacity connects to form through conventional circuit mode, see accompanying drawing 10, first the signal that the controlling brancher that microcontroller 1 exports is opened, close arrives output from lock circuit 18, each branch road output control part is controlled again by output from lock circuit 18, the switching of anti-locking system each branch road generation break-make when surprisingly restarting, affects the power supply of load.The control signal CTLn that microcontroller 1 controls each branch road output control circuit first inputs U24 latch 74HC573, then by control line LE373, signal CTLn is latched, allowed by control line OE373 again, export corresponding control signal RLYn to each branch road output control circuit at U24.When microcontroller something unexpected happened autoboot, control line 0E373, LE373 all lost efficacy, 11 pin of U24 drag down and make signal CTLn enter latch by resistance R105, and 1 pin of U24 drags down and makes U24 keep the output state of output signal RLYn constant by resistance R106, thus keep the output state of each branch road constant.
The job run flow process of this device is see accompanying drawing 11.
Touch-screen in this device can show the information such as electric current, power, whether can also control the disconnection of each branch road in real time by this touch-screen, and the disconnection on total road whether, realizes the control easily to circuit.
What the present invention announced is preferred embodiment, but is not limited thereto, those of ordinary skill in the art; very easily according to above-described embodiment, understand spirit of the present invention, and make different amplifications and change; but only otherwise depart from primary structure of the present invention, all in protection scope of the present invention.

Claims (4)

1. an intelligent touch distribution box, it is characterized in that, it comprises microcontroller, two-direction switch, electric-leakage detection circuit, total current testing circuit, metering circuit, voltage detecting circuit, AC-DC power module, DC-DC power source, reference voltage circuit, branch current testing circuit, branch road output control circuit; Two-direction switch taps into line, and respectively with electric-leakage detection circuit, total current testing circuit being electrically connected with branch current testing circuit, voltage detecting circuit, AC-DC power module, branch road output control circuit respectively by line bank; Electric-leakage detection circuit is also electrically connected with microcontroller; Total current testing circuit is also electrically connected with metering circuit; Metering circuit is also electrically connected with microcontroller, voltage detecting circuit respectively; AC-DC power module is electrically connected with DC-DC power source; DC-DC power source is electrically connected with reference voltage circuit; Described electric-leakage detection circuit comprises current transformer socket, amplifier, resistance, electric capacity connect to form through conventional circuit mode; Described total current testing circuit comprises current transformer, resistance, electric capacity connect to form through conventional circuit mode; Described metering circuit measures total current, total voltage, gross power, total electricity, and it comprises chip, transformer, resistance, electric capacity, connects to form through conventional circuit mode; Described voltage detecting circuit comprises voltage transformer resistance, electric capacity connects to form through conventional circuit mode; Described reference voltage circuit comprises amplifier, resistance, electric capacity connect to form through conventional circuit mode; Described branch current testing circuit comprises current transformer, amplifier, resistance, electric capacity connect to form through conventional circuit mode; Described branch road output control circuit comprises relay, diode, triode, resistance connect to form through conventional circuit mode.
2., by intelligent touch distribution box according to claim 1, it is characterized in that, microcontroller is electrically connected with touch-screen.
3., by intelligent touch distribution box according to claim 1, it is characterized in that, microcontroller is electrically connected with remote communication module.
4., by claim 1 or the intelligent touch distribution box described in 2 or 3, it is characterized in that, be also provided with in this device button, buzzer, memory, measurement and calibration auxiliary circuit, output from lock circuit.
CN201510213717.9A 2015-04-22 2015-04-22 Intelligent touch distribution box Active CN104810728B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510213717.9A CN104810728B (en) 2015-04-22 2015-04-22 Intelligent touch distribution box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510213717.9A CN104810728B (en) 2015-04-22 2015-04-22 Intelligent touch distribution box

Publications (2)

Publication Number Publication Date
CN104810728A true CN104810728A (en) 2015-07-29
CN104810728B CN104810728B (en) 2017-08-15

Family

ID=53695342

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510213717.9A Active CN104810728B (en) 2015-04-22 2015-04-22 Intelligent touch distribution box

Country Status (1)

Country Link
CN (1) CN104810728B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896323A (en) * 2016-05-10 2016-08-24 东莞赋安实业有限公司 High flame-retardant intelligent distribution box

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009131009A (en) * 2007-11-21 2009-06-11 Panasonic Electric Works Denro Co Ltd Distribution board
CN101859985A (en) * 2010-05-18 2010-10-13 遵义长征电器开关设备有限责任公司 Field bus type intellectualized low-voltage switch device
CN103560587A (en) * 2013-11-15 2014-02-05 重庆瑞升康博电气有限公司 Zero power consumption green power supply synthesized power distribution control box
CN103904780A (en) * 2014-04-29 2014-07-02 武汉双微电气科技有限公司 Node information processor based on low-voltage distribution network
CN103941192A (en) * 2014-04-10 2014-07-23 北京群菱能源科技有限公司 Energy storage power station test load
US20140312773A1 (en) * 2013-04-18 2014-10-23 APL IP Holding, LLC System and Method for Thermal Protection for a Universal Load Control Cabinet
CN204858289U (en) * 2015-04-22 2015-12-09 新余宇浩科技发展有限公司 Intelligence touch -control block terminal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009131009A (en) * 2007-11-21 2009-06-11 Panasonic Electric Works Denro Co Ltd Distribution board
CN101859985A (en) * 2010-05-18 2010-10-13 遵义长征电器开关设备有限责任公司 Field bus type intellectualized low-voltage switch device
US20140312773A1 (en) * 2013-04-18 2014-10-23 APL IP Holding, LLC System and Method for Thermal Protection for a Universal Load Control Cabinet
CN103560587A (en) * 2013-11-15 2014-02-05 重庆瑞升康博电气有限公司 Zero power consumption green power supply synthesized power distribution control box
CN103941192A (en) * 2014-04-10 2014-07-23 北京群菱能源科技有限公司 Energy storage power station test load
CN103904780A (en) * 2014-04-29 2014-07-02 武汉双微电气科技有限公司 Node information processor based on low-voltage distribution network
CN204858289U (en) * 2015-04-22 2015-12-09 新余宇浩科技发展有限公司 Intelligence touch -control block terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896323A (en) * 2016-05-10 2016-08-24 东莞赋安实业有限公司 High flame-retardant intelligent distribution box

Also Published As

Publication number Publication date
CN104810728B (en) 2017-08-15

Similar Documents

Publication Publication Date Title
CN101420116B (en) Intelligent integrated electricity leakage protection device
CN103779833B (en) DC leakage current detection and protection circuit and detection and guard method
KR101220773B1 (en) Intelligent Cabinet-Panel Having Energy Managing Function in the Smart Grid Environment
CN201682263U (en) Leakage protection device
CN104638768A (en) Intelligent power distribution security control terminal based on residential electricity consumption
CN102931733A (en) Residual current remote data collection and operation monitoring system
CN201360135Y (en) Intelligent integrated leakage protection device
CN204858289U (en) Intelligence touch -control block terminal
CN101707354A (en) Digital and electronic integrative motor protection controller
CN104810728A (en) Intelligent touch distribution box
CN103683186B (en) A kind of residual current circuit breaker with self-setting function
JP2016220265A (en) Power distribution board
CN104142648B (en) Urban track traffic low-voltage distribution system control terminal
CN108964259A (en) A kind of power grid intelligence control system
CN202076844U (en) Integrated monitoring protector with operation safety protection
CN204287362U (en) A kind of power distribution network electric leakage detector
KR20150033972A (en) Smart gateway
CN204205703U (en) The automatic repair system of a kind of power supply
CN206922506U (en) A kind of intelligent integrated switch board circuit
CN202856314U (en) Residual current circuit breaker having self-setting function
CN208158090U (en) A kind of power protector
CN201674281U (en) Electrical leakage protector with wireless communication function
CN207503344U (en) A kind of high current kilowatt-hour meter auto-power-off control device
CN205039533U (en) Line protection measurement and control device
CN206096281U (en) Monitoring devices to 400V power supply system

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
TR01 Transfer of patent right

Effective date of registration: 20201230

Address after: 225700 No. 1 Chuang Road, Zhaoyang street, Xinghua, Taizhou, Jiangsu.

Patentee after: XINGHUA TIANDONG SOFTWARE TECHNOLOGY Co.,Ltd.

Address before: 338000 building 1-A, 2857 Saiwei Avenue, high tech Zone, Xinyu City, Jiangxi Province

Patentee before: XINYU YUHAO TECHNOLOGY DEVELOPMENT Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20211014

Address after: 402760 No.92 Donglin Avenue, Biquan street, Bishan District, Chongqing

Patentee after: Chongqing high tech Industry Research Institute Co., Ltd

Address before: 225700 No. 1 Chuang Road, Zhaoyang street, Xinghua, Taizhou, Jiangsu.

Patentee before: XINGHUA TIANDONG SOFTWARE TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20211215

Address after: 402760 No. 1 Heping Road, Laifeng street, Bishan District, Chongqing

Patentee after: CHONGQING KUNGUAN ELECTRICAL APPLIANCE CO.,LTD.

Address before: 402760 No.92 Donglin Avenue, Biquan street, Bishan District, Chongqing

Patentee before: Chongqing high tech Industry Research Institute Co., Ltd