CN105261461B - Transformer winding circuit and structure capable of resisting common-mode interference and portable charger - Google Patents
Transformer winding circuit and structure capable of resisting common-mode interference and portable charger Download PDFInfo
- Publication number
- CN105261461B CN105261461B CN201510761408.5A CN201510761408A CN105261461B CN 105261461 B CN105261461 B CN 105261461B CN 201510761408 A CN201510761408 A CN 201510761408A CN 105261461 B CN105261461 B CN 105261461B
- Authority
- CN
- China
- Prior art keywords
- winding
- compensative
- layer
- insulating barrier
- main
- 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
Abstract
The invention discloses a transformer winding circuit and structure capable of resisting common-mode interference and a portable charger. The charger comprises a transformer and a winding structure thereof, wherein the winding structure comprises a primary winding, an auxiliary winding, a shielding winding, a secondary winding, a first insulating layer, a second insulating layer, a winding skeleton, a first compensation winding and a second compensation winding; the first compensation winding is arranged between the primary winding of the transformer and a magnetic core; the second compensation winding is arranged between the primary winding and the secondary winding; the first compensation winding and the second compensation winding both are connected to a compensation capacitor in parallel; and the compensation capacitor is connected with a switch tube in parallel. The common-mode interference is significantly inhibited under the condition of not increasing a component or the cost; a first wire hanging bump and a second wire hanging bump are cooperatively added to the top and the bottom of the same side of the transformer skeleton; unified wire diameters are adopted by the first compensation winding, the primary winding, the second compensation winding, the auxiliary winding and the shielding winding; and automatic winding is finished on the same automatic winding equipment.
Description
Technical field
The present invention relates to a kind of support transformer coiling circuit resistant to common code interference, structure and portable charger.
Background technology
As the use density of electronics and electrical equipment is sharply increased, radio-frequency spectrum is increasingly crowded, to electronic equipment
EMC Requirements also more and more higher.Electromagnetic interference (EMI) be cause electrically, electronic equipment can not in certain electromagnetic environment
The main cause of reliably working, can cause greatly harm to electronic equipment, gently then device damage, heavy then endanger personal safety,
Common mode disturbances and differential mode interference be can be divided mainly into by its pattern.In actual applications, most products Electro Magnetic Compatibility is unqualified
Due to suppression common mode interference causing very well.
The high frequency change that there is potential difference between portable charger input side, outlet side and ground (magnetic core) is to cause common mode
The basic reason of interference.The measure of generally suppression common mode interference is by increasing the elements such as wave filter, inducer, due to portable
Charger small volume, it is desirable to which the device such as wave filter, inducer is as compact as possible, and manufacturing cost is high, it is portable so as to cause
Charger cost substantially increases.
Existing transformator overcomes the problem of deficient manufacturing procedure by the insulating barrier of the increase insulating tape coiling after each winding,
With the cushion effect between the flatness of each winding of guarantee and increase winding, such setting requirements automation equipment need to increase accordingly
Plus the structure of bag insulating tape and increase mechanical movement step, the requirement to equipment is increased, Transformer Winding is also increased
The coiling time.
The armature winding coiling of existing transformator is typically with different line footpaths, be able to can be reduced around full one layer again with meeting
The purpose of transformer wire inclusion product, the winding of different line footpaths need different automatic winding equipment to be respectively completed, that is, increased and set
Standby quantity increased product transmission again and switch the time of equipment, cause the waste of manpower and materials.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind in the case where components and parts and cost are not increased, and significantly can support
Transformer resistant to common code interference coiling circuit, structure and it is easy to the portable charger of automated production.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of circuit to transformer coiling resistant to common code interference, including main winding, secondary windings, shield winding, auxiliary
Winding, magnetic core, switching tube, arrange the first compensative winding between the main winding and magnetic core of transformator, main winding with it is secondary around
Second compensative winding is set between group, and the first compensative winding and the second compensative winding are parallel to the compensation with paralleled power switches jointly
On electric capacity.
It is a kind of to support winding structure of transformer resistant to common code interference, including main winding, assists winding, shield winding, it is secondary around
Group, the first insulating barrier, the second insulating barrier, bobbin, magnetic core, switching tube, be additionally included in the main winding of transformator and magnetic core it
Between the first compensative winding for arranging and the second compensative winding arranged between main winding and secondary windings, the first compensative winding
It is parallel in the compensating electric capacity with paralleled power switches jointly with the second compensative winding.
A kind of to support winding structure of transformer resistant to common code interference, the first compensative winding is close to be around at least one of which on bobbin
Integer layer, main winding is outer close around least one layer of integer layer in the first compensative winding, and the second compensative winding is close to be wound on the master
The outer least one layer of integer layer of winding, it is outer close around one layer or auxiliary that assists winding is wound on the second compensative winding altogether with shield winding doubling
Help winding, shield winding to be sequentially set in outside the second compensative winding, if then exhausted in its outer smooth cladding dried layer from-inner-to-outer
Edge adhesive tape obtains the first insulating barrier, and secondary windings are outer close around least one layer of integer layer in the first insulating barrier, outside secondary windings
If cladding dried layer insulating tape obtains the second insulating barrier.
A kind of to support winding structure of transformer resistant to common code interference, the main winding, assists winding, shield winding, first are mended
Repay winding and the second compensative winding adopts identical line footpath.
It is a kind of to support portable charger resistant to common code interference, including transformator and its winding structure, it is characterised in that：Transformation
Device winding structure includes main winding, assists winding, shield winding, secondary windings, the first insulating barrier, the second insulating barrier, coiling bone
Frame, be additionally included in the first compensative winding for arranging between the main winding of transformator and magnetic core and main winding and secondary windings it
Between the second compensative winding for arranging, the first compensative winding and the second compensative winding are parallel to the compensation electricity with paralleled power switches jointly
Rong Shang.
It is a kind of to support portable charger resistant to common code interference, the first compensative winding is close be around in it is least one layer of on bobbin
Integer layer, main winding are outer close around least one layer of integer layer in the first compensative winding, the second compensative winding is close be wound on the master around
The outer least one layer of integer layer of group, assists winding and shield winding doubling are wound on that the second compensative winding is outer close around one layer or to be aided in altogether
Winding, shield winding are sequentially set in outside the second compensative winding from-inner-to-outer, if then in its outer smooth cladding dried layer insulation
Adhesive tape obtains the first insulating barrier, and secondary windings are outer close around least one layer of integer layer in the first insulating barrier, in secondary windings outsourcing
If covering dried layer insulating tape obtains the second insulating barrier.
It is a kind of to support portable charger resistant to common code interference, the main winding, assists winding, shield winding, the first compensation
Winding and the second compensative winding adopt identical line footpath.
A kind of to support portable charger resistant to common code interference, the top and bottom of transformer framework homonymy are correspondingly provided with and are available for
The first hanging wire salient point and the second hanging wire salient point that winding loop line hangs up, winding loop line is respectively through the first hanging wire salient point and
Two hanging wire salient points are entangled on stitch after pulling into straight line again.
The present invention by the main winding in transformator with ground (magnetic core), between main winding and secondary windings increase be parallel to out
The method for closing the compensative winding on the shunt capacitance (compensating electric capacity) between pipe D-S, flows through compensative winding and is produced by compensating electric capacity
Inverse noise electric current, resist common mode disturbances, in the case where components and parts and cost are not increased, significant suppression common mode do
Disturb；Increase the first hanging wire salient point coordinated on the top and bottom of transformer framework homonymy and the second hanging wire salient point, each around
Group loop line hung on stitch again after the first hanging wire salient point and the second hanging wire salient point so that each winding return
Line is straight line in the range of transformer framework fabric width, it is ensured that the coiling of follow-up each winding is smooth；Eliminate the first compensative winding,
Main winding, the second compensative winding, the insulating barrier that cushioning effect is played between assists winding and shield winding, are beneficial to using machinery
Change coiling winding, the first compensative winding, main winding, the second compensative winding, assists winding and shield winding adopt unified line footpath,
Automatic winding is completed on same Automated winding equipment, automatization's efficiency more than 50% is obviously improved.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is explained in further detail.
Coiling circuit diagrams of the Fig. 1 for embodiment
Fig. 2 is embodiment winding structure schematic diagram
Fig. 3 is embodiment transformer framework schematic diagram
Fig. 4 is the waveform that embodiment compensates electric current and common mode current
Fig. 5 is the waveform that embodiment compensates LISN common mode currents after front and compensation
Specific embodiment
As shown in the circuit of Fig. 1, the present invention provides through in the main winding (Np) and ground (magnetic core), main winding of transformator
(Np) increase the method for compensative winding (Nc) resisting common mode disturbances and secondary windings (Ns) between.
As shown in Fig. 2 of the present invention support portable charger resistant to common code interference, including transformator and its transformator
Winding structure, similar compared with technology, the winding structure includes main winding 10, assists winding 20 (Ne), shield winding 30
(Ncc), secondary windings 40, the first insulating barrier 70, the second insulating barrier 80 and bobbin 90, difference is：Also include arrange with
The first compensative winding 50 between main winding 10 and magnetic core, and arrange and the second benefit between main winding 10 and secondary windings 40
Winding 60 is repaid, the first compensative winding 50, the second compensative winding 60 are parallel to the shunt capacitance between switching tube D-S (compensating electric capacity)
On, make first compensative winding 50 and the second compensative winding 60 flow through the inverse noise electric current produced by compensating electric capacity, so as to
Form compensation counteracting of the electric current to common-mode interference current.
For convenience of description, reference is shown with Fig. 3, transformer framework stitch is placed down, the side equipped with stitch 94
For the bottom of transformer framework, top of the side on the other side for transformer framework, transformer framework entirety and prior art
Transformer framework be similar to, difference is：Preferably, it is respectively extra on the top and bottom of transformer framework homonymy to increase by the
One hanging wire salient point 91 and the second hanging wire salient point 92, the first hanging wire salient point 91 and the second hanging wire salient point 92 and frame body miscellaneous part
Between leave enough locus and security regulations distance, prevent short-circuit conditions from occurring.It is further preferred that in embodiment
In, the second hanging wire salient point 92 is arranged on the transformer framework bottom side opposite with wiring column 93, and structure is preferably top
With raised rectangular shape, the projection prevents downwards the winding loop line for hanging over thereon from coming off, the first hanging wire salient point
91 with the top for being correspondingly arranged at transformer framework of the mirror image each other of the second hanging wire salient point 92.The loop line of each winding is passed through
It is entangled on stitch again after the first hanging wire salient point 91 and the second hanging wire salient point 92 so that the loop line of each winding is in skeleton
It is straight line in the range of fabric width, it is ensured that the coiling of follow-up each winding is smooth, eliminates the insulation that cushioning effect is played between each winding
Layer, reduces job step, saves human and material resources, and the cancellation of insulating barrier is beneficial to using mechanization coiling winding, reduces to certainly
The requirement of dynamic spooling equipment quantity.
Preferably, as shown in Fig. 2 the first compensative winding 50 it is close around it is whole around one layer on bobbin 90, itself and switching tube
Compensating electric capacity in parallel is in parallel, main winding 10 the first compensative winding 50 it is close around whole around 3 layers, the second compensative winding 60 is in the master
On winding 10 it is close around whole around one layer, which is in parallel with the compensating electric capacity of switch in parallel；The loop line of each winding sequentially passes through described
One hanging wire salient point 91 and the second hanging wire salient point 92 are entangled on stitch after tensing again, it is ensured that each winding coiling is smooth so that
Insulating barrier can be not provided between each winding, in the case where ensureing that transformer performance is unaffected, when reducing operation, saving
Between, reduce the overall volume of transformer coiling bag, improve automaticity；Then by assists winding 20 and 30 doubling of shield winding
60 last layer of the second compensative winding is wound on altogether, similarly, by the loop line of assists winding 20 and shield winding 30 through described first
Hanging wire salient point 91 and the second hanging wire salient point 92 are entangled on stitch after tensing again, outer with shield winding 30 smooth in assists winding 20
Cladding two-layer insulating tape obtains the first insulating barrier 70, close outside the first insulating barrier 70 to obtain secondary windings 40 around one layer, finally
The second insulating barrier 80 is obtained in 40 outer cladding two-layer insulating tape of secondary windings.Main winding 10, assists winding 20, shield winding 30
And secondary windings 40 coiling direction and the number of plies can be close according to the fabric width of the performance of transformator and transformer framework body etc.
Around integer (if can be a layer, two-layer or dried layer) of the coiling no less than one layer；Constitute the first insulating barrier 70 and the second insulating barrier
If the number of plies of 80 insulating tape can be arranged as required to as dried layer.
Preferably, in the present embodiment, the first compensative winding 50, main winding 10, the second compensative winding 60, assists winding 20 with
And shield winding 30 is met around full one by calculating the winding turns and distribution mode that adjust each winding using unified line footpath
Layer, due to line footpath is identical and the first compensative winding 50, main winding 10, the second compensative winding 60, assists winding 20 and shielding around
Insulating barrier is not set between group 30, automatic winding is completed on same Automated winding equipment.
LISN (Line Impedance Stabilization Network) i.e. line impedance stabilization net works, LISN are electricity
An important auxiliary equipment in Force system in electromagnetic compatibility test, it can isolate electrical network interference, there is provided stable test resistance
It is anti-, and play a part of filtering.The present embodiment is tested using the method for LISN, as shown in figure 4, A is the ripple of the compensation electric current
Shape, B are the waveform of the common mode current；As shown in figure 5, C is the waveform of LISN ground common mode current before compensation, after D is for compensation
LISN ground common mode current waveform, by Fig. 4 and Fig. 5 this it appears that：The ripple spike outstanding behaviours of electric current is compensated described in A in just
Half period, in negative half-cycle, two kinds of ripples of A, B occur in same frequency range for the ripple spike outstanding behaviours of common mode current described in B,
Can then cancel out each other electric wave ripple, then produce the LISN ground common mode current waveform after D compensation, the Vpp values of its ripple are significantly less than C
The ripple Vpp values of the LISN ground common mode current before compensation, can be apparent from the resistance to common-mode noise from measured data (ripple)
Work well.
Claims (8)
1. a kind of circuit to transformer coiling resistant to common code interference, it is characterised in that：Including main winding, secondary windings, shielding
Winding, assists winding, magnetic core, switching tube, arrange the first compensative winding, between the main winding and magnetic core of transformator in main winding
Second compensative winding is set between secondary windings, and the first compensative winding and the second compensative winding are parallel to jointly with switching tube simultaneously
In the compensating electric capacity of connection.
It is 2. a kind of to support winding structure of transformer resistant to common code interference, it is characterised in that：Including main winding (10), assists winding
(20), shield winding (30), secondary windings (40), the first insulating barrier (70), the second insulating barrier (80), bobbin (90), also
Be included in the first compensative winding (50) that the main winding (10) of transformator arranged and magnetic core between and main winding (10) with it is secondary
The second compensative winding (60) arranged between level winding (40), the first compensative winding (50) and the second compensative winding (60) are common simultaneously
It is coupled in the compensating electric capacity with paralleled power switches.
3. winding structure of transformer resistant to common code interference is supported as claimed in claim 2, it is characterised in that：First compensative winding
(50) it is close to be around in least one layer of integer layer on bobbin (90), main winding (10) the first compensative winding (50) outward it is close around to
Few one layer of integer layer, the second compensative winding (60) is close to be wound on the main winding (10) least one layer of integer layer outward, aid in around
Group (20) and shield winding (30) doubling be wound on altogether the second compensative winding (60) outward it is close around one layer or assists winding (20), shielding around
Group (30) is sequentially set in the second compensative winding (60) outward from-inner-to-outer, if then in its outer smooth cladding dried layer insulating tape
The first insulating barrier (70) is obtained, secondary windings (40) are close around least one layer of integer layer outward in the first insulating barrier (70), in secondary
Winding (40) is if outer cladding dried layer insulating tape obtains the second insulating barrier (80).
4. winding structure of transformer resistant to common code interference is supported as claimed in claim 3, it is characterised in that：The main winding
(10), assists winding (20), shield winding (30), the first compensative winding (50) and the second compensative winding (60) adopt same line
Footpath.
It is 5. a kind of to support portable charger resistant to common code interference, including transformator and its winding structure, it is characterised in that：Transformator
Winding structure include main winding (10), assists winding (20), shield winding (30), secondary windings (40), the first insulating barrier (70),
Second insulating barrier (80), bobbin (90), are additionally included in the first benefit that the main winding (10) of transformator is arranged and magnetic core between
Repay winding (50) and the second compensative winding (60) arranged between main winding (10) and secondary windings (40), the first compensation around
Group (50) and the second compensative winding (60) are parallel in the compensating electric capacity with paralleled power switches jointly.
6. portable charger resistant to common code interference is supported as claimed in claim 5, it is characterised in that：First compensative winding (50)
Close to be around in least one layer of integer layer on bobbin (90), main winding (10) is close around at least one outward in the first compensative winding (50)
The integer layer of layer, the second compensative winding (60) is close to be wound on the main winding (10) least one layer of integer layer outward, assists winding
(20) it is wound on the second compensative winding (60) with shield winding (30) doubling altogether close around one layer or assists winding (20), shield winding outward
(30) sequentially it is set in the second compensative winding (60) outward, if then obtaining in its outer smooth cladding dried layer insulating tape from-inner-to-outer
To the first insulating barrier (70), secondary windings (40) are close around least one layer of integer layer outward in the first insulating barrier (70), secondary around
Group (40) is if outer cladding dried layer insulating tape obtains the second insulating barrier (80).
7. portable charger resistant to common code interference is supported as claimed in claim 6, it is characterised in that：The main winding (10),
Assists winding (20), shield winding (30), the first compensative winding (50) and the second compensative winding (60) are using identical line footpath.
8. as described in any one of claim 2～7 to portable charger resistant to common code interference, it is characterised in that：Transformator
The top and bottom of skeleton homonymy is correspondingly provided with the first hanging wire salient point and the second hanging wire salient point for being available for winding loop line to hang up, winding
Loop line is pulled into respectively through the first hanging wire salient point and the second hanging wire salient point and be entangled on stitch again after straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761408.5A CN105261461B (en) | 2015-11-10 | 2015-11-10 | Transformer winding circuit and structure capable of resisting common-mode interference and portable charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761408.5A CN105261461B (en) | 2015-11-10 | 2015-11-10 | Transformer winding circuit and structure capable of resisting common-mode interference and portable charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105261461A CN105261461A (en) | 2016-01-20 |
| CN105261461B true CN105261461B (en) | 2017-04-19 |
Family
ID=55101107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510761408.5A Active CN105261461B (en) | 2015-11-10 | 2015-11-10 | Transformer winding circuit and structure capable of resisting common-mode interference and portable charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105261461B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111986918B (en) * | 2020-08-24 | 2022-03-29 | 西南交通大学青岛轨道交通研究院 | Electromagnetic coil winding method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107704U (en) * | 1991-12-07 | 1992-06-17 | 沈阳市节能变压器厂 | Electric capacity compensation transformer |
| SK140199A3 (en) * | 1999-10-08 | 2001-06-11 | Ladislav Grno | Circuit for the virtual isolation of power supply of the voltage and current circuit at the bulk testing of electric supply meters |
| CN201298439Y (en) * | 2008-09-09 | 2009-08-26 | 詹云珍 | Electric furnace transformer with capacitance compensation winding |
| CN102789878A (en) * | 2012-08-28 | 2012-11-21 | 江苏索尔光电科技有限公司 | Transformer for switching mode power supply |
| CN204304786U (en) * | 2014-12-09 | 2015-04-29 | 成都创客之家科技有限公司 | A kind of switch power supply line structure |
| CN204668128U (en) * | 2015-06-04 | 2015-09-23 | 东莞市奥海电源科技有限公司 | The winding structure of portable charger and transformer thereof |
| CN205159057U (en) * | 2015-11-10 | 2016-04-13 | 东莞市奥海电源科技有限公司 | Resist common mode interference's transformer wire winding structure and portable battery charger |
-
2015
- 2015-11-10 CN CN201510761408.5A patent/CN105261461B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107704U (en) * | 1991-12-07 | 1992-06-17 | 沈阳市节能变压器厂 | Electric capacity compensation transformer |
| SK140199A3 (en) * | 1999-10-08 | 2001-06-11 | Ladislav Grno | Circuit for the virtual isolation of power supply of the voltage and current circuit at the bulk testing of electric supply meters |
| CN201298439Y (en) * | 2008-09-09 | 2009-08-26 | 詹云珍 | Electric furnace transformer with capacitance compensation winding |
| CN102789878A (en) * | 2012-08-28 | 2012-11-21 | 江苏索尔光电科技有限公司 | Transformer for switching mode power supply |
| CN204304786U (en) * | 2014-12-09 | 2015-04-29 | 成都创客之家科技有限公司 | A kind of switch power supply line structure |
| CN204668128U (en) * | 2015-06-04 | 2015-09-23 | 东莞市奥海电源科技有限公司 | The winding structure of portable charger and transformer thereof |
| CN205159057U (en) * | 2015-11-10 | 2016-04-13 | 东莞市奥海电源科技有限公司 | Resist common mode interference's transformer wire winding structure and portable battery charger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105261461A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9748036B2 (en) | Transformer | |
| Chu et al. | Modeling and stability analysis of active/hybrid common-mode EMI filters for DC/DC power converters | |
| CN110310815A (en) | Flat surface transformer, power-switching circuit and adapter | |
| US7898827B2 (en) | Active EMI filtering using magnetic coupling cancellation | |
| CN105047385A (en) | High-frequency transformer and electronic magnetic interference (EMI) suppression circuit including same | |
| CN103310956A (en) | Transformer capable of inhibiting common-mode current and power converter thereof | |
| CN103986318B (en) | The method for reducing common mode current | |
| CN111624457B (en) | Simulation test method for thyristor module action characteristics | |
| CN205159057U (en) | Resist common mode interference's transformer wire winding structure and portable battery charger | |
| CN203013469U (en) | Transformer capable of reducing switching power supply electro-magnetic interference (EMI) and flyback switching power supply including same | |
| CN112233888A (en) | Transformer device, switching power supply and power adapter | |
| Majid et al. | EMI filter design for high frequency power converters | |
| CN105703366A (en) | Active filtration method and device for simultaneously restraining difference mode interference and common mode interference | |
| CN105405602B (en) | Reduce Type C portable charger and the transformator thereof of common mode disturbances | |
| Dzhankhotov et al. | A new passive hybrid air-core foil filter for modern power drives | |
| CN105261461B (en) | Transformer winding circuit and structure capable of resisting common-mode interference and portable charger | |
| Ito et al. | Study on transient recovery voltages for transformer-limited faults | |
| CN203673947U (en) | Transformer | |
| JP6239468B2 (en) | Medical equipment | |
| US20210194348A1 (en) | Common mode (cm) electromagnetic interference (emi) filters for reducing radiated emi in power converters | |
| Esmaeli et al. | Suppressing of commonmode voltage, shaft voltage, leakage current and EMI generated by voltage source PWM inverter | |
| JP2012034149A (en) | Power source line filter | |
| CN110601516A (en) | Filtering device, power supply and filtering method thereof | |
| CN100365903C (en) | Single-phase AC inputting electromagnetic interference killer circuit | |
| CN205282240U (en) | Reduce common mode interference's type -C portable battery charger and transformer thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170317 Address after: 343900 Suichuan Industrial Park, Jiangxi, Ji'an Applicant after: Ji'an Jiangxi Technology Co., Ltd. Address before: 523000 Guangdong city of Dongguan province Tangxia Zhenlong town B Jiao Tong Road No. 6 building A Applicant before: Dongguan City Ao Hai Power Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |