CN205861258U - The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure - Google Patents
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure Download PDFInfo
- Publication number
- CN205861258U CN205861258U CN201620222020.8U CN201620222020U CN205861258U CN 205861258 U CN205861258 U CN 205861258U CN 201620222020 U CN201620222020 U CN 201620222020U CN 205861258 U CN205861258 U CN 205861258U
- Authority
- CN
- China
- Prior art keywords
- cold
- cable
- intermediate joint
- pressure
- shrinking intermediate
- 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
- Cable Accessories (AREA)
Abstract
This utility model relates to the measurement apparatus of a kind of cable cold-shrinking intermediate joint interfacial pressure, including: multiple pressure transducers, signal picker and data processor；Described pressure transducer is embedded in the crosslinked polyetylene insulated surface of the cold shrink tube origination side of cable cold-shrinking intermediate joint in advance, silicone rubber and the middle part at crosslinked polyethylene interface after loosing core corresponding to cold shrink tube, and be located at equidistantly between each pressure transducer in same circumference, the outfan of described pressure transducer is connected with described signal picker；Described signal picker reads the signal of telecommunication that pressure transducer produces in cable normal course of operation in real time, and transmits the described signal of telecommunication to data processor；The interfacial pressure value of described data processor output cable cold-shrinking intermediate joint.Pass through technique scheme, it is achieved that directly measuring cable cold-shrinking intermediate joint interfacial pressure, it is to avoid the error that indirect measurement brings, be effectively improved the accuracy of measurement result.
Description
Technical field
This utility model relates to transmission line of electricity security fields, particularly relates to a kind of cable cold-shrinking intermediate joint interfacial pressure
Measurement apparatus.
Background technology
Many employing crosslinked polyethylene sheath power cables in existing ultra-high-tension power transmission line, when twisted polyethylene cable circuit
Be short-circuited, after the reason such as insulation ag(e)ing or other External Force Actings causes breakdown fault, conventional processing method is: by faulty section
Cable is cut and is abandoned, and uses halfway junction box to be coupled together by the cable of cut-out.For the selection of halfway junction box, in the middle of cold-contraction type
Joint because its insulation is reliable, good airproof performance, the plurality of advantages such as easy for installation, safe and reliable, become ideal transition joint.
Cable cold-shrinking intermediate joint utilizes the characteristic of rubber " elastic memory ", uses advanced expansion technique, by whole for the cable manufactured
End glue part struts in elastic range in advance, is inserted in plastic support bar；During installation, only need to pump plastic support bar, cable termination
Rubber parts will shrink rapidly to be held tightly on cable.When reality is applied, the protecting pipe of cable accessory, branch's set, sealing pipe etc.
It is entirely shrinkage product, it is ensured that the preferable sealing of twisted polyethylene cable circuit.
Along with cold-shrinking intermediate joint is at twisted polyethylene cable circuit, especially in 10kV twisted polyethylene cable circuit
Extensively application, the insulator interface constituted due to transition joint cold shrink tube silicone rubber and crosslinked polyethylene occurs electric discharge to cause transmission of electricity
The situation of line fault the most frequently occurs, and wherein, cold shrink tube interfacial pressure deficiency is the one of the main reasons that fault occurs.Cause
This, carrying out calculating to cold shrink tube interfacial pressure becomes, with measuring, the primary means preventing this fault to occur.
Measurement apparatus many uses aluminum pipe patch foil gauge of the most traditional cold shrink tube interfacial pressure, comes cold-shrinking intermediate joint
Interfacial pressure measure, but, owing to the aluminum pipe model for measuring and the actual joint design of cable are not quite similar, lead
Cause measuring result error bigger, it is impossible to play the effect of prevention power distribution network transmission line malfunction.
Utility model content
Based on this, it is necessary to for the measuring result error of the measurement apparatus of existing cold-shrinking intermediate joint interfacial pressure
Bigger technical problem, it is provided that the measurement apparatus of a kind of cable cold-shrinking intermediate joint interfacial pressure.
A kind of measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure, including: multiple pressure transducers, signal picker
And data processor；
Described pressure transducer is embedded in the crosslinked polyetylene insulated table of the cold shrink tube origination side of cable cold-shrinking intermediate joint in advance
Face, silicone rubber and the middle part at crosslinked polyethylene interface after loosing core corresponding to cold shrink tube, and between each pressure transducer etc.
Being located in same circumference to distance, the outfan of described pressure transducer is connected with described signal picker；Wherein, described shrinkage
Pipe shrinkage is at corresponding cut cable joint location；
Described signal picker reads the signal of telecommunication that pressure transducer produces in cable normal course of operation in real time, and will
The described signal of telecommunication transmits to data processor；
The interfacial pressure value of described data processor output cable cold-shrinking intermediate joint.
The measurement apparatus of above-mentioned cable cold-shrinking intermediate joint interfacial pressure, by being embedded in the cold of cable cold-shrinking intermediate joint in advance
The crosslinked polyetylene insulated surface of draw origination side and after loosing core corresponding to cold shrink tube silicone rubber with in crosslinked polyethylene interface
Between the interfacial pressure suffered by pressure transducer induction cable cold-shrinking intermediate joint at position, and by signal picker at cable just
Running often reads the signal of telecommunication that above-mentioned pressure transducer produces in real time, recycles described data processor output cable cold
The interfacial pressure value of contracting transition joint.By technique scheme, cable cold-shrinking intermediate joint interfacial pressure of the present utility model
Measurement apparatus achieve the direct measurement to cable cold-shrinking intermediate joint interfacial pressure, it is to avoid the mistake that indirect measurement brings
Difference, is effectively improved the accuracy of measurement result.
Accompanying drawing explanation
Fig. 1 is the structure of the measurement apparatus of the cable cold-shrinking intermediate joint interfacial pressure of an embodiment of the present utility model
Schematic diagram；
Fig. 2 is that the measurement apparatus of the cable cold-shrinking intermediate joint interfacial pressure utilizing an embodiment of the present utility model is divided
Other 5 different test products are carried out the pressure versus time change curve that interfacial pressure measurement obtains.
Detailed description of the invention
In order to further illustrate the technological means and the effect of acquirement that this utility model taked, below in conjunction with the accompanying drawings and
Preferred embodiment, to the technical solution of the utility model, carries out clear and complete description.
As it is shown in figure 1, the measurement of the cable cold-shrinking intermediate joint interfacial pressure that Fig. 1 is an embodiment of the present utility model
The structural representation of device, including: multiple pressure transducers 100, signal picker 200 and data processor 300；
Described pressure transducer 100 is embedded in the crosslinked polyetylene insulated of the cold shrink tube origination side of cable cold-shrinking intermediate joint in advance
Surface, after loosing core corresponding to cold shrink tube silicone rubber and crosslinked polyethylene interface middle part, and each pressure transducer 100 it
Between be located at equidistantly in same circumference, the outfan of described pressure transducer 100 is connected with described signal picker 200；Its
In, described cold shrink tube shrinkage is at corresponding cut cable joint location；
Described signal picker 200 reads the telecommunications that pressure transducer 100 produces in cable normal course of operation in real time
Number, and the described signal of telecommunication is transmitted to data processor 300；
The interfacial pressure value of described data processor 300 output cable cold-shrinking intermediate joint.
The measurement apparatus of above-mentioned cable cold-shrinking intermediate joint interfacial pressure, by being embedded in the cold of cable cold-shrinking intermediate joint in advance
The crosslinked polyetylene insulated surface of draw origination side and after loosing core corresponding to cold shrink tube silicone rubber with in crosslinked polyethylene interface
Between the interfacial pressure suffered by pressure transducer 100 induction cable cold-shrinking intermediate joint at position, and existed by signal picker 200
Reading the signal of telecommunication that above-mentioned pressure transducer 100 produces in cable normal course of operation in real time, recycling data processor 300 is defeated
Go out the interfacial pressure value of cable cold-shrinking intermediate joint.By technique scheme, cable cold-shrinking intermediate joint of the present utility model
The measurement apparatus of interfacial pressure achieves the direct measurement to cable cold-shrinking intermediate joint interfacial pressure, it is to avoid indirect measurement band
The error come, is effectively improved the accuracy of measurement result.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
Corresponding relation between the described signal of telecommunication and the default signal of telecommunication and force value according to stating data processor 300, is calculated
The processor of the interfacial pressure value of cable cold-shrinking intermediate joint.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State the axial location between internal stress cone and the external carbuncle cone of the cold shrink tube that pressure transducer 100 is embedded in cold-shrinking intermediate joint in advance
Place.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State the axial midpoint position between internal stress cone and the external carbuncle cone of the cold shrink tube that pressure transducer 100 is embedded in cold-shrinking intermediate joint in advance
Put place.
In the above-described embodiments, the internal stress cone being embedded in cable cold-shrinking intermediate joint cold shrink tube in advance is utilized to bore it with external carbuncle
Between the direct interfacial pressure suffered by induction cable cold-shrinking intermediate joint of pressure transducer 100 of axial midpoint position so that
The signal of telecommunication that sensing obtains can reflect the interfacial pressure suffered by cable cold-shrinking intermediate joint more realistically；By by pressure sensing
Device 100 is embedded in the axial midpoint position between the internal stress cone of cable cold-shrinking intermediate joint cold shrink tube and external carbuncle cone in advance, makes
Pressure transducer can interfacial pressure suffered by induction cable shrinkage joint equably so that the interface pressure of pressure transducer sensing
Power is more accurate, is effectively improved the accuracy of measurement result.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State the semi-conducting electrode that internal stress cone is cold shrink tube of cold shrink tube.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State the stress control layer that external carbuncle cone is cold shrink tube of cold shrink tube.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State pressure transducer 100 for diaphragm pressure sensor.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
State pressure transducer 100 for resistive pressure sensor.
In the above-described embodiments, by using the interface of resistive pressure sensor induction cable cold-shrinking intermediate joint to press
Power, information acquisition device 200 reads the resistance signal that resistive pressure sensor produces in cable normal course of operation in real time, and
Described resistance signal is transmitted to data processor 300；Described data processor 300 is according to default resistance signal and force value
Between corresponding relation, be calculated the interfacial pressure value of cable cold-shrinking intermediate joint.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, institute
The thickness stating pressure transducer 100 is 0～0.5mm, and sensitive zones radius is 5～12mm, and conveying length is not less than 100mm.
In actual applications, can be according to the concrete size Selection different parameters of measured cable cold-shrinking intermediate joint
Pressure transducer, under equal conditions, the thickness of pressure transducer is the thinnest, and the signal of telecommunication error that pressure transducer senses is more
Little, the interfacial pressure value that data processor measurement obtains is the most accurate, is effectively improved the accuracy of measurement result.
Wherein in an embodiment, the measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure of the present utility model, also
Including: for making the platform of described cold-shrinking intermediate joint.
In the present embodiment, in order to make cable cold-shrinking intermediate joint, first reply is for making 2 electricity of transition joint
Cable section carries out pretreatment, i.e. according to transition joint making step, cut cable one end is carried out stripping, exposes core 5cm for two
The crimping of section cable, afterwards in order to outer semiconducting layer be peeled off 30cm by smooth for sensor placement when disposing sensor, dew
Go out insulation, and by ethanol paper wiped clean.
The most again the cut cable core of same size is alignd, use aluminium hydraulic pressed connecting pipe crimping, and guarantee whole section of electricity after connecting
Cable is without bending.Making sensitive zones skew for avoiding taking out shrinkage tube core rope and lose, sensor deployment is in the crosslinking of shrinkage origination side
Polyethylene insulation surface, silicone rubber and the middle part at crosslinked polyethylene interface after loosing core corresponding to cold shrink tube.At the present embodiment
In, each joint use altogether three sensors, three sensors are positioned at the most equidistantly on same circumference, to reduce cable
The error that bending is eccentric and brings.It should be noted that the quantity of pressure transducer can be entered according to the concrete size of cut cable
Row increase and decrease.
Before the measurement apparatus utilizing cable cold-shrinking intermediate joint interfacial pressure of the present utility model measures, first will be by
The cold shrink tube shrinkage of cable cold-shrinking intermediate joint is in corresponding cut cable joint location, and cold shrink tube shrinkage original position is pressed in biography
Sensor outlet side, and enable two lead-out terminals to expose.Afterwards lead-out terminal is connected with signal picker, signal picker
Send data to computer terminal, complete interfacial pressure data acquisition.In order to guarantee in cable shrinkage of the present utility model
Between the measurement apparatus of joint interfacial pressure record stable interfacial pressure value, can cable cold-shrinking intermediate joint install 0 hour,
5 hours, carry out pressure data collection after 10 hours respectively, often during group data acquisition, use test software with the frequency of 0.03 time/s
Rate record measurement result in 10 seconds, to eliminate the error that random disturbances causes as much as possible.
For measurement of comparison as a result, it is possible to utilize the measurement of cable cold-shrinking intermediate joint interfacial pressure of the present utility model to fill
Put and multiple cable cold-shrinking intermediate joint interfacial pressures are measured simultaneously.
Below as a example by 5 cold shrink tube test products, in order to eliminate the error that bias etc. may be brought, each joint each time
The pressure that point is measured takes the meansigma methods of three sensors, finally gives pressure versus time change curve such as Fig. 2 of 5 different test products
Shown in.Fig. 2 is the measurement apparatus difference of the cable cold-shrinking intermediate joint interfacial pressure utilizing an embodiment of the present utility model
5 different test products are carried out the pressure versus time change curve that interfacial pressure measurement obtains.The pressure versus time change curve of Fig. 2
In vertical coordinate represent pressure axis Pressure (kg), abscissa represents time shaft Time (h).
The measurement apparatus of above-mentioned cable cold-shrinking intermediate joint interfacial pressure, by being embedded in cable cold-shrinking intermediate joint in advance
The crosslinked polyetylene insulated surface of cold shrink tube origination side and silicone rubber and crosslinked polyethylene interface after loosing core corresponding to cold shrink tube
The interfacial pressure suffered by pressure transducer induction cable cold-shrinking intermediate joint of middle part, and by signal picker at cable
Normal course of operation reads the signal of telecommunication that above-mentioned pressure transducer produces in real time, recycles described data processor output cable
The interfacial pressure value of cold-shrinking intermediate joint.By technique scheme, cable cold-shrinking intermediate joint interface of the present utility model is pressed
The measurement apparatus of power achieves the direct measurement to cable cold-shrinking intermediate joint interfacial pressure, it is to avoid the mistake that indirect measurement brings
Difference, is effectively improved the accuracy of measurement result.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the common skill of this area
For art personnel, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. the measurement apparatus of a cable cold-shrinking intermediate joint interfacial pressure, it is characterised in that including: multiple pressure transducers,
Signal picker and data processor；
Described pressure transducer is embedded in the crosslinked polyetylene insulated surface of the cold shrink tube origination side of cable cold-shrinking intermediate joint in advance, right
Should after cold shrink tube is loosed core the middle part at silicone rubber and crosslinked polyethylene interface, and between each pressure transducer equidistantly
Being located in same circumference, the outfan of described pressure transducer is connected with described signal picker；Wherein, described cold shrink tube shrinkage
At corresponding cut cable joint location；
Described signal picker reads the signal of telecommunication that pressure transducer produces in cable normal course of operation in real time, and by described
The signal of telecommunication transmits to data processor；
The interfacial pressure value of described data processor output cable cold-shrinking intermediate joint.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that: described number
According to the corresponding relation between the signal of telecommunication described according to processor and the default signal of telecommunication and force value, it is calculated cable shrinkage
The processor of the interfacial pressure value of transition joint.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that: described pressure
Force transducer is embedded in the axial positions between the internal stress cone of the cold shrink tube of cold-shrinking intermediate joint and external carbuncle cone in advance.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 3, it is characterised in that: described pressure
Force transducer is embedded in the axial midpoint position between the internal stress cone of the cold shrink tube of cold-shrinking intermediate joint and external carbuncle cone in advance.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 3, it is characterised in that: described cold
The semi-conducting electrode that internal stress cone is cold shrink tube of the draw.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 3, it is characterised in that: described cold
The stress control layer that external carbuncle cone is cold shrink tube of the draw.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that: described pressure
Force transducer is diaphragm pressure sensor.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that: described pressure
Force transducer is resistive pressure sensor.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that: described pressure
The thickness of force transducer is 0～0.5mm, and sensitive zones radius is 5～12mm, and conveying length is not less than 100mm.
The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure the most according to claim 1, it is characterised in that also wrap
Include: for making the platform of described cold-shrinking intermediate joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222020.8U CN205861258U (en) | 2016-03-21 | 2016-03-21 | The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222020.8U CN205861258U (en) | 2016-03-21 | 2016-03-21 | The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205861258U true CN205861258U (en) | 2017-01-04 |
Family
ID=57642744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620222020.8U Active CN205861258U (en) | 2016-03-21 | 2016-03-21 | The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205861258U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404250A (en) * | 2016-03-21 | 2017-02-15 | 广州供电局有限公司 | Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof |
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| CN112484615A (en) * | 2020-10-16 | 2021-03-12 | 深圳市成天泰电缆实业发展有限公司 | Cable connection detection device for cable installation |
-
2016
- 2016-03-21 CN CN201620222020.8U patent/CN205861258U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404250A (en) * | 2016-03-21 | 2017-02-15 | 广州供电局有限公司 | Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof |
| CN106404250B (en) * | 2016-03-21 | 2019-04-19 | 广州供电局有限公司 | The measuring device and its method of cable cold-shrinking intermediate joint interfacial pressure |
| CN109752119A (en) * | 2017-11-06 | 2019-05-14 | 深圳带路科技有限公司 | A kind of cable accessory interfacial pressure measuring device and method |
| CN112484615A (en) * | 2020-10-16 | 2021-03-12 | 深圳市成天泰电缆实业发展有限公司 | Cable connection detection device for cable installation |
| CN112484615B (en) * | 2020-10-16 | 2022-04-15 | 深圳市成天泰电缆实业发展有限公司 | Cable connection detection device for cable installation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106404250B (en) | The measuring device and its method of cable cold-shrinking intermediate joint interfacial pressure | |
| CN205861258U (en) | The measurement apparatus of cable cold-shrinking intermediate joint interfacial pressure | |
| CN201773650U (en) | Composite material insulator capable of immediately monitoring internal strain and temperature variation | |
| CN103499274B (en) | Coaxial cable sensor and production method and use method thereof | |
| CN102520230B (en) | Zinc oxide lightning arrester operation state detection method | |
| CN206379213U (en) | A kind of full power-frequency electromagnetic fields that block water | |
| CN104635056A (en) | Method for calculating contact resistance of intermediate joint crimping tube of three-core cable | |
| CN208313484U (en) | A kind of cable accessory interfacial pressure detection device | |
| CN201213075Y (en) | Electric cable having real-time temperature measuring function | |
| CN208805555U (en) | A kind of cable connector partial discharge detection capacitance sensor | |
| US20210035711A1 (en) | Underground Layable Power Cable, In Particular, a Submarine Cable | |
| CN105890835B (en) | The measuring method of cable cold-shrinking intermediate joint interfacial pressure | |
| CN103543321A (en) | Polarization-depolarization current detection device for crosslinked polyethylene medium-voltage cable | |
| CN106816234A (en) | A kind of lightning protection optical fiber composite insulator | |
| CN109920601B (en) | Power cable suitable for partial discharge detection positioning | |
| CN209881368U (en) | Integrated cable connection underwater sealing joint | |
| CN104330650A (en) | Total current based live-line test method of zinc oxide lightning arrester group | |
| KR101984432B1 (en) | Diagnosis device for monitoring degradation of cable and diagnosis method thereof | |
| CN215678608U (en) | Fault positioning device for multi-core cable | |
| CN202486270U (en) | Field partial discharge test circuit and system for high-voltage side lead-in cable of transformer | |
| CN109060220A (en) | A kind of cable accessory interfacial pressure detection method and device | |
| CN101726674B (en) | Method for on-line assessment of insulation on-line monitoring system of substation | |
| CN108344926B (en) | Power cable partial discharge online monitoring device and method | |
| CN108344928A (en) | A kind of power cable local discharge on-line monitoring device and method | |
| CN203673866U (en) | Power cable capable of monitoring operating temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
|
| TR01 | Transfer of patent right |