CN206602009U - The multistage isolated boost transformer of encapsulation - Google Patents
The multistage isolated boost transformer of encapsulation Download PDFInfo
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- CN206602009U CN206602009U CN201720253741.XU CN201720253741U CN206602009U CN 206602009 U CN206602009 U CN 206602009U CN 201720253741 U CN201720253741 U CN 201720253741U CN 206602009 U CN206602009 U CN 206602009U
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Abstract
The utility model discloses a kind of multistage isolated boost transformer of encapsulation, including：First magnetic core, the second magnetic core, isolation frame and coiling group, coiling group are provided with the pilot hole with isolating frame assembling, and coiling group structure includes armature winding and secondary windings, and separation layer is provided between armature winding and secondary windings；Secondary windings, which is divided between multilevel hierarchy and every grade, is provided with lattice baffle plate；It is the tubular structure that one end is closed to isolate frame, and be provided with it for installing coiling group and the first magnetic core, the cylindrical throughbores of the second magnetic core, one arm of the first magnetic core and the second magnetic core is respectively from the relative insertion in the cylindrical throughbores two ends in isolation frame, and the space between isolation frame and the coiling group of the multistage isolated boost transformer of encapsulation, which is poured, is inoculated with insulating cement.The utility model is provided with multistage insulation system using new winding mode, substantially increases its withstanding voltage, effectively extends its service life.
Description
Technical field
The utility model is related to field transformer, more particularly to a kind of encapsulation multistage isolated boost device for transformer.
Background technology
Transformer is to convert alternating voltage, electric current and the device of impedance, typically by by iron core（Or magnetic core）Constituted with coil,
Coil has two or more windings, wherein connect the winding of power supply primary coil, remaining winding secondary coil, when
When being connected with alternating current in primary coil, iron core（Or magnetic core）In just produce exchange flux, make to induce voltage in secondary coil
（Or electric current）.In generator, either coil movement by magnetic field or Movement in Magnetic Field by fixed coil, can be in coil
Induced potential, this two kinds of situations, the value of magnetic flux is constant, but has variation with the magnetic flux quantity of coil intersecting chain, and this is electromagnetism
The principle of sensing.Transformer is exactly that one kind utilizes electromagnetic induction, voltage of transformation, the device of electric current and impedance.
Transformer is had by purposes point：1. power transformer：Ascending, descending voltage for electrical power trans mission/distribution system.2. instrument transformation
Device：Such as voltage transformer, current transformer, for measuring instrumentss and protective relaying device.3. testing transformer：It can produce high
Pressure, high-potting is carried out to electrical equipment.4. special transformer：Such as furnace transformer, rectifier transformer, adjustment transformer, electricity
Appearance formula transformer, phase-shifting transformer etc..
Wherein, experimental transformer is particularly suitable for use in power system, industrial and mining enterprises, scientific research department etc. various high-voltage electrical apparatus is set
Standby, electric elements, insulating materials carry out the dielectric(al) test under power frequency or high direct voltage.It is essential in high-potting
Visual plant.Testing transformer is step-up transformer again.Step-up transformer has five kinds by medium point：1st, insulated barrel-type boosting transformation
Device：Feature is that complete set of equipments matching is strong, and voltage capacity series is complete, perfect in shape and function；Impedance voltage is low, and system impedance is not more than
5%, meet ac test requirement；Using swift electron protection device, reliability is high.It is mainly used in examining various insulating materials, absolutely
Edge structure and electric product etc. are resistant to the dielectric level of power-frequency voltage, also serve as the shelf depreciation of the experiments such as transformer, arrester
Industrial frequency experiment power supply, is widely used in electrician manufacturing sector, operation power department, R＆D institution and institution of higher learning.2nd, oil immersed type
Step-up transformer：Feature volume is big, weight weight, and capacity is big, and easy to maintenance, later maintenance is costly, is existing testing transformer
Main product, it is adaptable to power system, industrial and mining enterprises, traffic, postal and telecommunication entities, R＆D institution etc., to various high voltage electric equipments,
Electric elements, insulating materials carry out the dielectric(al) test under power frequency or high direct voltage.3rd, inflatable step-up transformer：Feature is
Later maintenance is needed, arc-extinguishing good, lightweight, dangerous property.4th, dry-type step-up transformer：Feature is non-maintaining, lightweight, volume
It is small, it can put upside down, cost is high.5th, series excitation type H.V. step up transformer:Feature is that capacity is small, voltage is low, lightweight, is readily transported,
Wiring is various, and cost is high.Step-up transformer, as the electronic building brick being commonly used in electrical equipment, is a kind of high current, high electricity
The converter of pressure, its built-in electrical insulation and security are the critically important factors for needing in design of transformer to consider, and transformation
Device can produce many heats in high current, high-tension environment running, and too high temperature often can reduce insulation material again
The insulating properties of material, shorten the service life of transformer；Conventional boost transformer it is general by output end winding technique to together, so
Keep the stabilization of transformer performance by increasing heat abstractor afterwards, but by the coiling of output end secondary windings to easily making together
Into high-voltage output end short-circuit between conductors, and increase heat abstractor can make transformer device structure complicated, and volume increase adds its production
Technology difficulty and production cost, so tolerance high pressure, step-up transformer simple in construction can be continued in the urgent need to exploitation is a kind of.
Utility model content
For above-mentioned the shortcomings of the prior art, the utility model provides a kind of many class B insulation liters of encapsulation
Pressure transformer.
To achieve the above object, the technical scheme that a kind of multistage isolated boost transformer of encapsulation of the utility model is provided
For：Including the first magnetic core, the second magnetic core, isolation frame and coiling group, the coiling group is provided with the pilot hole with isolating frame assembling,
Coiling group structure includes armature winding and secondary windings, and separation layer is provided between armature winding and secondary windings；It is described it is secondary around
Component is that lattice baffle plate is provided between multilevel hierarchy and every grade；The isolation frame is the tubular structure that one end is closed, and is provided with it
For installing coiling group and the first magnetic core, the cylindrical throughbores of the second magnetic core, the arm difference of first magnetic core and the second magnetic core
From the relative insertion in the cylindrical throughbores two ends in isolation frame, in addition, isolation frame and the coiling of the multistage isolated boost transformer of encapsulation
Space between group, which is poured, is inoculated with insulating cement.
Wherein, first magnetic core and the second magnetic core are set to an arm in " u " type, and " u " type two-arm with isolating in frame
Cylindrical throughbores coordinate, and another arm is fastened in the spacing grid of isolation outer frame side.
Wherein, the lateral wall of first magnetic core and the second magnetic core is provided with hoop groove, and first be assemblied on isolation frame
The hoop groove location of magnetic core and the second magnetic core is corresponding, and is fixed on by a hoop rope on isolation frame.
Wherein, polyimide insulative adhesive tape is all enclosed with outside the armature winding and secondary windings of the coiling group, is used as
Polyester film non-woven fabrics is provided with one layer of separation layer between insulation-encapsulated, and armature winding and secondary windings.
Wherein, the coiling group is set on the cylindrical throughbores in isolation frame, and provided with the on the lateral wall of coiling group
One fixed column and the second fixed column, bottom are provided with positioning tooth, and the uniform cloth of positioning tooth point is in coiling group bottom with isolating in frame bottom
The stopper slot of side is engaged.
Wherein, the secondary windings lattice baffle plate is provided with some through slots, and enamel-covered wire passes through through slot coiling around full one-level
Next stage.
Wherein, the isolation frame blind end inwall is provided with the stopper slot being engaged with the positioning tooth of coiling group bottom.
Wherein, the bottom of the isolation frame blind end and side wall are provided with the first connection jaws and the second connection jaws, the first wiring
Mouth is used for the pin for reserving armature winding after insulating cement package isolation frame, and the second connection jaws are used to reserve insulating cement package isolation frame
The pin of secondary windings afterwards.
Wherein, the coiling assembling distribution top is set to shoulder hole, and shoulder hole inwall passes through it provided with positioning grid, coiling group
On positioning grid and positioning tooth fix its position for being relatively isolated frame.
Wherein, its pressure voltage polyamides Asia can be increased provided with one layer between every two layers during the armature winding enamel-covered wire winding
Amine insulating tape.
Compared with prior art, the utility model has following beneficial effect：Secondary windings is divided into multistage by the utility model
Structure, compared with being wound in single coil, its classification not only considerably increases its highest pressure voltage using the design of lattice baffle plate, also
Add its rate of heat dispation, it is to avoid enamel-covered wire magnet wire insulation performance caused by winding concentrates heating too fast is reduced, extension
The service life of transformer；Separation layer is set between armature winding and secondary windings, armature winding and secondary windings are separated,
The good polyester film non-woven fabrics of insulating properties is wound with separation layer, transformer stability and security, transformer is added
Be additionally provided with outside main body coiling group one isolation frame, and coiling group and isolation frame between be poured into insulating cement carry out further it is exhausted
Edge, improves dielectric strength and humidity-proof ability, effectively weakens leakage field, and greatly adds and bear to test short circuit current flow
The highest withstanding voltage of impact capacity and transformer, due to the encapsulation of isolation frame and insulating cement, the water and ash completely cut off in air
The corrosion of the materials such as dirt, extends the service life of transformer.
Brief description of the drawings
Fig. 1 is the explosive view of step-up transformer of the present utility model；
The structural representation of the magnetic core of Fig. 2 the utility model first and the second magnetic core；
Fig. 3 is the first viewing angle constructions schematic diagram that the utility model isolates frame；
Fig. 4, the second viewing angle constructions schematic diagram for the utility model isolation frame；
Fig. 5 is the first viewing angle constructions schematic diagram of the utility model armature winding and secondary windings；
Fig. 6 is the second viewing angle constructions schematic diagram of the utility model armature winding and secondary windings.
Main element symbol description is as follows：
The magnetic core of 11 first magnetic core 12 second
The 13 hoop isolation frames of groove 21
The spacing grid of 22 cylindrical throughbores 23
The connection jaws of 24 stopper slot 25 first
The coiling group of 26 second connection jaws 31
The secondary windings of 32 armature winding 33
The lattice baffle plate of 34 separation layer 35
The fixed column of 36 through slot 37 first
The positioning tooth of 38 second fixed column 39
The shoulder hole of 41 pilot hole 42
43 positioning grid.
Embodiment
In order to more clearly state the utility model, the utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, being a kind of a kind of preferably specific reality of the multistage isolated boost transformer of encapsulation of the utility model
The structural representation of mode is applied, is mainly included, the first magnetic core 11, the second magnetic core 12, isolation frame 21 and coiling group 31；Due to boosting
Transformer mainly carrys out work using electromagnetic induction principle, is specifically：When the side of transformer primary group 32 applies alternating voltage
U1, the electric current for flowing through armature winding 32 is I1, then the electric current can produce alternating flux in the core, make armature winding 32 and side by side
Secondary windings 33 between occur electromagnetic connection, according to electromagnetic induction principle, alternating flux will be sensed through the two windings
Go out electromotive force, its size is directly proportional to the maximum of umber of turn and main flux, i.e. the number of turn of armature winding 32 is few, input voltage
Low, the number of turn of secondary windings 33 is more, and output voltage is high；When the side of transformer secondary output winding 33 open circuit, i.e. no-load transformer, it is primary around
Group 32 and the terminal voltage of secondary windings 33 are directly proportional to armature winding 32 and the number of turn of secondary windings 33, i.e. U1/U2=N1/N2, but primary
Be consistent with secondary frequencies, thus step-up transformer be by the setting to armature winding 32 and secondary winding turns 33 so as to
Realize the change of voltage.Step-up transformer concrete structure includes in the present embodiment：The center of coiling group 31 is provided with isolating frame 21
Coiling group 31, is directly set on cylindrical throughbores 22, the knot of coiling group 31 by the pilot hole 41 that middle cylindrical throughbores 22 are assembled during assembling
Structure include armature winding 32 and secondary windings 33, between armature winding 32 and secondary windings 33 be provided with separation layer 34, to primary around
Group 32 and secondary windings 33 carry out isolated insulation；33 points of secondary windings is that lattice baffle plate 35 is provided between multilevel hierarchy and every grade, right
The higher secondary windings 33 of voltage carries out stage isolation insulation；It is the tubular structure that one end is closed to isolate frame 21, and is provided with it
Cylindrical throughbores 22 for installing the magnetic core 11 of coiling group 31 and first, the second magnetic core 12, the first magnetic core 11 and the second magnetic core 12
One arm is inserted from the two ends of cylindrical throughbores 22 in isolation frame 21 are relative respectively, and frame 21 and coiling group 31 are isolated in transformer assembling
Between space pour and be inoculated with insulating cement, further transformer is insulated.
Shown in reference picture 2, the first magnetic core 11 and in a kind of multistage isolated boost transformer of encapsulation of the utility model
The arm that two magnetic cores 12 are set to cylindrical in " u " type, and " u " type two-arm coordinates with the cylindrical throughbores 22 isolated in frame 21, rectangular
Another arm of the bodily form is fastened in the spacing grid 23 in the outside of isolation frame 21, and the first magnetic core 11 and the second magnetic core 12 are respectively from isolation frame
The relative insertion in the two ends of cylindrical throughbores 22 in 21, but this structure not limited to this, for example, cylindrical throughbores 22 can be set into hollow length
Cube post, and to be set to corresponding shape matched etc. for a wherein arm for magnetic core；The outside of first magnetic core 11 and the second magnetic core 12
Wall is provided with hoop groove 13, and the first magnetic core 11 is corresponding with the position of hoop groove 13 of the second magnetic core 12, and isolation is fixed on by binding round rope
On frame 21.
Shown in reference picture 3, frame 21 is isolated in a kind of multistage isolated boost transformer of encapsulation of the utility model provided with one
Individual cylindric through hole 22, coiling group 31 is set in by the pilot hole 41 in the middle of it on cylindric through hole 22 of isolation frame 21, such as
Described above, this part-structure is not limited thereto, and can also make cylindric through hole 22, pilot hole 41 and magnetic core to repair accordingly
Change, for example, being set to other shapes or changing its position；The week of cylindrical throughbores 22 on the isolation blind end medial surface of frame 21
Enclose uniform provided with 4 stopper slots 24, this stopper slot 24 with the positioning tooth 39 of the bottom of coiling group 31 by cooperatively forming coiling
Group 31 and the one-level of isolation frame 21 are spacing；The side upper end of isolation frame 21 is provided with the first connection jaws 25 in the present embodiment in addition,
Pin for picking out armature winding 32, the connection jaws of the armature winding 32 after being encapsulated as insulating cement.
Shown in reference picture 4, the bottom of frame 21 is isolated in a kind of multistage isolated boost transformer of encapsulation of the utility model
Provided with the second connection jaws 26, for picking out the pin of secondary windings 33 as 33 connection jaws of secondary windings after encapsulation, isolation
Spacing grid 23 are additionally provided with the outer wall of frame 21, for coordinating with magnetic core.
Shown in reference picture 5, divide in a kind of multistage isolated boost transformer of encapsulation of the utility model in secondary windings 33
For five level structures, lattice baffle plate 35 is provided between every grade, again provided with two row relative to the symmetrical through slot in the center of circle on lattice baffle plate 35
36, enamel-covered wire transforms to the second level after 307 circles of first order winding in secondary windings 33 by through slot 36 to be continued to wind 308
Circle, the 3-5 grades of numbers of turn are identical with the second level, wherein a diameter of circle of 1.1mm coilings 40 of enamel-covered wire used in armature winding 32, secondary
A diameter of 0.21mm of enamel-covered wire used in winding 33, the above enamel-covered wire winding number of turn and classification situation in the utility model
This is not limited to, available common technology means do corresponding replacement in the art.
Shown in reference picture 6, the side wall of coiling group 31 in a kind of multistage isolated boost transformer of encapsulation of the utility model
It is provided with five the first fixed columns 37 and second fixed column 38, the first fixed column 37 and the second symmetrically arrangement of fixed column 38
On the lateral wall of lattice baffle plate 35 of coiling group 31, by with isolate frame 21 cooperatively form two grades it is spacing；The bottom end of coiling group 31
4 positioning tooths 39 are additionally provided with face around cylindrical hole, this four positioning tooths 39 can be with isolating in the bottom inside face of frame 21
Stopper slot 24 be engaged；Provided with positioning grid 43 on the inwall of shoulder hole 42 in coiling group 31, the positioning grid 43 are with isolating
The cylindrical throughbores 22 of frame 21 are engaged that to form three-level spacing, and coiling group 31 is relatively fixed in isolation frame 21 by the way that this three-level is spacing
It is interior.Certainly, this case is also not limited to use above-mentioned concrete structure, for example, the first fixed column 37, the second fixed column 38 and positioning
Tooth 39 etc. can change scheme by increasing and decreasing quantity or changing position.
It is 130 DEG C that highest tolerable temperature is provided with separation layer 34 in coiling group 31, and highest withstanding voltage is the poly- of 5000V
Ester film non-woven fabrics, is encapsulated as the first order, in armature winding 32 and the outer wrapping one of secondary windings 33 after the completion of enamel-covered wire winding
Layer highest tolerable temperature is 260 DEG C of polyimide insulative adhesive tape, is encapsulated as the second level, isolation frame 21 and coiling group 31 it
Between space in pour and be inoculated with insulating cement and encapsulated as the third level；In the present embodiment, transformer input electricity is made by three-level encapsulation
Press and reach 8500V-18000V for 420V output voltages, and highest withstanding voltage reaches 24000V, compared with prior art this reality
With new pressure voltage, stability, and heat dispersion are all greatly improved.
Advantage of the present utility model is：
1st, the utility model simplifies transformer device structure, it is to avoid radiated to ensure using methods such as the cold, air cooling of liquid
Transformer insulated performance reduces volume of transformer in the complicated technology of normal range (NR), saves cost and time；
2nd, it is multilevel hierarchy by 33 points of secondary windings in the utility model, and is provided with three class B insulations, makes transformer most
High withstand voltage value reaches 24000V, and compared with traditional wound is into single coil, its tolerable temperature and highest pressure voltage are obtained for very
Big raising；In addition insulation-encapsulated also has been carried out to transformer coiling group, it is to avoid coiling group 31 outer layer after being used for a long time
Enamel-covered wire is oxidized corrosion in HTHP and air contact, so as to extend the service life of transformer；
3rd, the utility model is provided with the separation layer of one fixed width, separation layer 34 between armature winding 32 and secondary windings 33
Upper winding polyester film non-woven fabrics, realizes and separates armature winding 32 and secondary windings 33, it is to avoid armature winding 32 and time
Level winding 33 is short-circuit caused by power is excessive, farthest adds stability and security, armature winding is added again
32 and the area of dissipation of secondary windings 32；
4th, three-level position limiting structure is provided between coiling group 31 and isolation frame 21 in the utility model, precision when making assembling
Higher, error is less, greatly reduces percent defective, improves production efficiency, has saved production cost.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and the modification made according to technical spirit of the present utility model to above example, still
Belong in the range of technical solutions of the utility model.
Claims (10)
1. a kind of multistage isolated boost transformer of encapsulation, including the first magnetic core, the second magnetic core, isolation frame and coiling group, it is special
Levy and be：The coiling group is provided with the pilot hole with isolating frame assembling, and coiling group structure includes armature winding and secondary windings,
Separation layer is provided between armature winding and secondary windings；The secondary windings is divided between multilevel hierarchy and every grade to be kept off provided with lattice
Plate；The isolation frame is the tubular structure that one end is closed, and its interior is provided with is used to install coiling group and the first magnetic core, the second magnetic core
Cylindrical throughbores, an arm of first magnetic core and the second magnetic core inserted from the cylindrical throughbores two ends in isolation frame are relative respectively,
Space between isolation frame and the coiling group of the multistage isolated boost transformer of the encapsulation, which is poured, is inoculated with insulating cement.
2. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：First magnetic core
The arm being set to the second magnetic core in " u " type, and " u " type two-arm coordinates with isolating the cylindrical throughbores in frame, and another arm is fastened on
In the spacing grid for isolating outer frame side.
3. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：First magnetic core
Lateral wall with the second magnetic core is provided with hoop groove, and the rigging position of the first magnetic core and the second magnetic core hoop groove is corresponding, and passes through
A piece hoop rope is fixed on isolation frame.
4. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The coiling group
Polyimide insulative adhesive tape is all enclosed with outside armature winding and secondary windings, as first layer insulation-encapsulated, and armature winding and
Polyester film non-woven fabrics is provided with separation layer between secondary windings.
5. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The coiling group set
It is located on the cylindrical throughbores in isolation frame, and provided with the first fixed column and the second fixed column, bottom on the lateral wall of coiling group
Provided with positioning tooth, the uniform cloth of positioning tooth point can be engaged in coiling group bottom with isolating the stopper slot on the inside of frame bottom.
6. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The secondary windings
Lattice baffle plate is provided with some through slots, and enamel-covered wire passes through through slot coiling next stage around full one-level.
7. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The isolation frame envelope
Closed end inwall is provided with the stopper slot being engaged with the positioning tooth of coiling group bottom.
8. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The isolation frame envelope
The bottom of closed end and side wall are provided with the first connection jaws and the second connection jaws, and the first connection jaws are used as after insulating cement package isolation frame just
The connection jaws of level winding, the second connection jaws are used as the connection jaws of secondary windings after insulating cement package isolation frame.
9. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：The coiling assembling
Distribution top is set to shoulder hole, and shoulder hole inwall fixes it provided with positioning grid, coiling group by positioning grid and positioning tooth thereon
It is relatively isolated the position of frame.
10. a kind of multistage isolated boost transformer of encapsulation according to claim 1, it is characterised in that：It is described it is primary around
It can increase the polyimide insulative adhesive tape of its pressure voltage provided with one layer between every two layers during group enamel-covered wire winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253741.XU CN206602009U (en) | 2017-03-16 | 2017-03-16 | The multistage isolated boost transformer of encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253741.XU CN206602009U (en) | 2017-03-16 | 2017-03-16 | The multistage isolated boost transformer of encapsulation |
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| Publication Number | Publication Date |
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| CN206602009U true CN206602009U (en) | 2017-10-31 |
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ID=60144247
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| CN201720253741.XU Active CN206602009U (en) | 2017-03-16 | 2017-03-16 | The multistage isolated boost transformer of encapsulation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068339A (en) * | 2017-03-16 | 2017-08-18 | 深圳市华云图科技有限公司 | The multistage isolated boost transformer of encapsulation |
| US11044022B2 (en) | 2018-08-29 | 2021-06-22 | Analog Devices Global Unlimited Company | Back-to-back isolation circuit |
| US11387316B2 (en) | 2019-12-02 | 2022-07-12 | Analog Devices International Unlimited Company | Monolithic back-to-back isolation elements with floating top plate |
| US11450469B2 (en) | 2019-08-28 | 2022-09-20 | Analog Devices Global Unlimited Company | Insulation jacket for top coil of an isolated transformer |
-
2017
- 2017-03-16 CN CN201720253741.XU patent/CN206602009U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068339A (en) * | 2017-03-16 | 2017-08-18 | 深圳市华云图科技有限公司 | The multistage isolated boost transformer of encapsulation |
| US11044022B2 (en) | 2018-08-29 | 2021-06-22 | Analog Devices Global Unlimited Company | Back-to-back isolation circuit |
| US11450469B2 (en) | 2019-08-28 | 2022-09-20 | Analog Devices Global Unlimited Company | Insulation jacket for top coil of an isolated transformer |
| US11387316B2 (en) | 2019-12-02 | 2022-07-12 | Analog Devices International Unlimited Company | Monolithic back-to-back isolation elements with floating top plate |
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Effective date of registration: 20181128 Address after: 518000 South Side of Building B of Sanmin Industrial Park, Paddy Field Community, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen native Electronics Co., Ltd. Address before: 518000 South Side of Building B of Sanmin Industrial Park, Paddy Field Community, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Huayun Technology Co., Ltd. |
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