CN103035364B - Electronic transformer - Google Patents
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- CN103035364B CN103035364B CN201210585705.5A CN201210585705A CN103035364B CN 103035364 B CN103035364 B CN 103035364B CN 201210585705 A CN201210585705 A CN 201210585705A CN 103035364 B CN103035364 B CN 103035364B
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- magnetic core
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- isolation cover
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- 238000004804 winding Methods 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims description 44
- 239000003292 glue Substances 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 80
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920001342 Bakelite® Polymers 0.000 description 3
- 239000004637 bakelite Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000005477 standard model Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses an electronic transformer, which comprises a winding framework (1) and a magnetic core (3), wherein the winding framework (1) is provided with a winding terminal (17); the magnetic core (3) is arranged on the winding framework (1); the electronic transformer is characterized by also comprising an insulating isolating cover (2) with an opening (2a), wherein a cover body of the insulating isolating cover (2) covers an exposed surface of the magnetic core (3); the winding framework (1) is locally exposed from the opening (2a) of the isolating cover (2); and the winding terminal (17) is arranged on an exposed part of the winding framework (1). The electronic transformer has the advantages of small and skillful size, simple manufacturing process and capability of guaranteeing sufficient electric safety distances between the magnetic core and the winding terminal and between the transformer and other electronic devices on a PCB (Printed Circuit Board) substrate.
Description
Technical field
The present invention relates to a kind of electronic transformer, this electronic transformer is mainly used in Switching Power Supply and modular power source
In.
Background technology
With the lifting of the power density of Switching Power Supply particularly modular power source, as the transformation of its core power device
Device, has detailed hard and fast rule in terms of the safe distance such as electric clearance and creep age distance.Volume size is also wished simultaneously
Develop towards the direction of miniaturization as far as possible.
Existing transformator is typically made up of skeleton, coil, magnetic core.Multiple coils are wound with skeleton, skeleton both sides are divided
It is not provided with terminal board, the metal terminal that on terminal board, plug-in mounting multiple confession coil windings are electrically connected with circuit board.Magnetic core passes through
The axis through hole of skeleton combines in opposite directions, and is seated on the terminal board of skeleton.Be combined with skeleton in magnetic core junction and magnetic core
Place's resin bonding is fixed, and magnetic core periphery is wound around insulation gummed paper and is protected.
For meeting creep age distance requirement in safety, in prior art the main magnetic core being directed to transformator in the following ways with
Creep age distance between coiling metal terminal carries out protection and optimizes：
1st, the terminal board of skeleton elongated, increase, or increase baffle plate, such as number of patent application on terminal board enters：
200810071190.0 technical scheme；Or transformator, simply in the form of fly line, is increased between coil and coil with this
And the distance between magnetic core and coiling metal terminal.But these modes are all unfavorable for the volume miniaturization of transformator itself, or even
Increased processed complex degree and the labor hour of transformator.
2nd, change magnetic core pattern to ensure.As patent documentation：Japanese Patent Publication 6-9120 publication, this scheme involves
The change of magnetic core pattern, because re-molding different from industrywide standard model, makes core size not advise after magnetic core modal shift
Then, leading to the design of magnetic core parameter to calculate and process becomes extremely complex.
More prominent, when above-mentioned transformator is installed in PCB substrate, the electronic device with PCB periphery cannot
Ensure effective safe distance, the cloth Board position of electronic device all need to be particularly away from magnetic core away from transformator.This for solving
The problem of safe distance, is exactly generally that by transformator periphery inclusion, magnetic core is all proper makees sealed bag with insulation gummed paper
Wrap up in, or increase by a circle insulating trip between transformator and periphery electronic device, will be complete to transformer magnetic core and electronic device
Keep apart.But in labor intensive man-hour by way of wrapping up gummed paper, increasing insulating trip, increase the work of transformator or even machine system
Skill difficulty.
Content of the invention
It is an object of the invention to provide a kind of compact, manufacturing process simple Integral electronic transformator, can make
Have between other electronic devices between magnetic core and winding terminals and in transformator and PCB substrate enough electrical safeties away from
From.
The purpose of the present invention is to be realized by following technical measures：
A kind of electronic transformer, including the coil rack being provided with winding terminals and the magnetic core being arranged on coil rack,
It is characterized in that：Described electronic transformer also includes being provided with the insulated isolation cover of opening；The cover body of described isolation cover is coated on
On the exposed surface of described magnetic core, and described coil rack local is exposed from the opening of isolation cover, described winding terminals setting
The position exposed in coil rack.According to the different magnetic core of Transformer Selection, such as EI, ER, EE, ETD, EPC or U-shaped magnetic core
Become matched shape Deng, insulated isolation cover respective design and be coated on magnetic core so that between winding terminals and magnetic core
Separated by insulated isolation cover, also separated by insulated isolation cover between other electronic devices in magnetic core and PCB substrate simultaneously, with
Increase the electrical safety distance between them, and transformator is able to by the opening radiating on isolation cover.
In order to be more beneficial for the radiating of electronic transformer, as a kind of feature of the present invention, described isolation cover also has
Window for electronic transformer radiating；Coil windings on described coil rack are exposed from described window.
In order that the magnetic core parameter designing of transformator optimize the most with simply, as the preferred embodiment of the present invention, institute
Stating magnetic core is day font magnetic core, and described coil rack is sleeved on the newel of this day font magnetic core, day font magnetic core frame
Post exposed outside coil rack, the cover body of described isolation cover is had and is adapted with the outer surface of described day font magnetic core frame columns
Internal face, this internal face is close on the outer surface of described day font magnetic core frame columns.
In order that electronic transformer more miniaturization, reduce the space shared by isolation cover, the one kind as the present invention is excellent
Select embodiment, described isolation cover is the cover body with four covers, four covers of this cover body are sequentially connected with " mouth " font
Surround internal cavity, and the vertical sectional shape of each cover be breach towards described internal cavity " [" shape, described day word
The frame columns of shape magnetic core are contained in described internal cavity.
In order that electronic transformer has more compact construction, volume reaches minimum, and simplifies electronic transformer
Packaging technology with reduces cost, the embodiment recommended as the present invention, described day font magnetic core by two standards the E-type magnetic heart
Combinations of pairs forms, and described coil rack includes spiral portion and two support bases, and described spiral portion is the cylinder with hollow cavity
Body, the two ends bottom of this cylinder respectively laterally lower section extend the step-like support base of two-stage, wherein higher level and subordinate's step
It is respectively supporting table and the terminal board of support base, in spiral portion, the center pillar of described two magnetic cores divides described coil windings
Do not enter described hollow cavity from the two ends plug-in mounting in spiral portion, the foundation difference part support of two magnetic cores is in two supporting tables
On, and the non-support of foundation leaves gap respectively in the part in supporting table and two terminal boards between, and two of two magnetic cores
Side column docks in the both sides in spiral portion respectively, and the lower flanges of two of described isolation cover covers relatively are separately mounted to described two
In gap and cover on the lower surface of the foundation of two magnetic cores, this two sides of covers and upper flanges relatively are respectively overlay in
On the side surface and upper surface of the foundation of two magnetic cores, the lower flange of two other relative cover, side and upper flange are respectively
On the lower surface of two side columns in two magnetic cores for the covering, side surface and upper surface.This isolation cover is complete from top to bottom, left and right, front and rear
Orientation wraps magnetic core comprehensively, such that it is able to realize isolating well.
In order that more stable being arranged on coil rack of magnetic core, as a modification of the present invention, described terminal board
Length is slightly larger than the radial width in described spiral portion, and support exceeds two side columns of described two magnetic cores in two terminal boards respectively
Spiral portion partly goes up.
As one embodiment of the present invention, several described winding terminals are inserted into described two ends respectively side by side
The bottom of sub- platform.
As a modification of the present invention, it is trapezoidal convex that the bottom of described two terminal boards has also been arranged side by side several respectively
Platform, the inclined-plane of this trapezoid boss is towards described winding terminals.The effect of this trapezoid boss is to prevent metal terminal coiling from soaking
Height after stannum is inconsistent installing of leading to uneven it is ensured that the coplane degree of transformator.
In order that isolation cover is fixed with coil rack phase, as one embodiment of the present invention, described two terminals
Platform is provided with boss in lateral surface respectively, and between described boss and isolation cover, point has glue.
For the ease of the assembling of electronic transformer, as a modification of the present invention, described isolation cover is by two halfbodies
Joint forms.
In order that isolation cover more closely wraps magnetic core, as a modification of the present invention, one of described isolation
The junction surface of the halfbody of cover is provided with the jacket for covering the joint gap between described two halfbodies.
Compared with prior art, the invention has the advantages that：
First, the present invention in the case of not increasing volume of transformer, by isolation cover assembling, effectively increase magnetic
Safety distance between the heart and wire wrap terminal；
Second, the electronic transformer structure of the present invention is simple, easy to assembly, can effectively substitute the encapsulated paper of transformator periphery
Supplementary insulation protects, and reduces the machining period of transformator and manufactures complexity；
3rd, wrap up magnetic core because isolation cover is comprehensive, the electronic transformer of the present invention is installed in PCB
When, can effectively ensure that the electric clearance between magnetic core and other electronic units, save PCB space；
4th, the electronic transformer of the present invention adopts the magnetic core of industrywide standard model, for the characteristics design of core material,
The aspects such as processing, buying are all very convenient, and contribute to reducing the cost of electronic transformer；
5th, the coil rack of electronic transformer of the present invention and isolation cover are molded into using the bakelite of insulating properties or resin
Type, processing is very simple.
Brief description
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the coil rack schematic diagram of the preferred embodiment of the present invention；
Fig. 2 is the coil rack bottom schematic view of the preferred embodiment of the present invention；
Fig. 3 is the isolation cover schematic diagram of the preferred embodiment of the present invention；
Fig. 4 is the isolation cover split explanation schematic diagram of the preferred embodiment of the present invention；
Fig. 5 is the assembling schematic diagram of the preferred embodiment of the present invention；
Fig. 6 is the axonometric chart after preferred embodiment of the present invention assembling；
Fig. 7 is the transformator perspective cross section schematic diagram of the preferred embodiment of the present invention；
Fig. 8 is the transformator A-A generalized section of the preferred embodiment of the present invention；
Fig. 9 is the close-up schematic view of Fig. 8；
Figure 10 is the transformator B-B generalized section of the preferred embodiment of the present invention.
Specific embodiment
As shown in Figures 1 to 10, the electronic transformer of the preferred embodiment for the present invention includes coil rack 1, isolation cover 2 and
Magnetic core 3, which employs horizontally-mounted frame mode, and being designed with the miniature size farthest realizing modular power source will
Ask.
Wherein, as depicted in figs. 1 and 2, the coil rack 1 of this preferred embodiment is by the bakelite with insulating properties or resin
Injection mo(u)lding, it includes spiral portion 10 and two support bases, and spiral portion 10 is the cylinder with hollow cavity 12, the horizontal stroke of this cylinder
Cross sectional shape be square, and its two ends bottom respectively laterally lower section extend the step-like support base of two-stage, wherein higher level
It is respectively supporting table 14 and the terminal board 15 of support base with subordinate step, length D1 of terminal board 15 is slightly larger than the footpath in spiral portion 10
To width D 2, and terminal board 15 be provided with boss 13, several trapezoid boss 16, several be used for electrically connect with PCB substrate
The metal winding terminal 17 connecing, boss 13 is arranged in the middle part of the end face outside of terminal board 15, several winding terminals 17 simultaneously sockets
It is contained in the bottom of terminal board 15, several trapezoid boss 16 side by side and are vertically set on the bottom surface of terminal board 15 and its inclined-plane
Towards winding terminals 17.
As shown in Figures 3 to 5, the isolation cover 2 of this preferred embodiment is by the bakelite of insulating properties or resin injection molding, its
Engaged by the first halfbody 21 and the second halfbody 22 and form, the side width 211 of the first halfbody 21 and the second halfbody 22 and side width
, all not less than the thickness D3 of the foundation 32 of magnetic core 3, their base width 212 and base width 222 are all not less than magnetic core for degree 221
The thickness D4 of 3 side column 33, the first halfbody 21 and the second halfbody 22 are respectively provided with hollow cavity 213 and 225, the second halfbody 22
Junction surface 224 is provided with jacket 223, and this two halfbodies are at the junction surface at the junction surface 214 of the first halfbody 21 and the second halfbody 22
After 224 are joined together, becoming the joint gap between a cover body with four covers and two halfbodies is jacket 223 institute
Masking.Four covers of the cover body of two halfbody joints are sequentially connected with " mouth " font and surround internal cavity 23, that is, above-mentioned
The hollow cavity 213 and 225 of two halfbodies is combined into this internal cavity 23, and the vertical sectional shape of each cover is breach
Towards internal cavity 23 " [" shape, that is, the relative cover of two of which hung down by side 25 upper and lower part by side 25 and respectively
The upper flange 26 directly extending and lower flange 24 form, and two other relative cover is by side 28 and respectively by side 28
The upper flange 29 that upper and lower part vertically extends and lower flange 27 form, and the square breach of this cover body upper and lower part are respectively isolation cover
The 2 window 2b and opening 2a being used for electronic transformer radiating.
As shown in figure 5, the magnetic core 3 of this preferred embodiment is the ferrite core 3 of the standard EFD model of two pairings, should
The magnetic core of EFD model is one kind of the E-type magnetic heart, its center pillar 31 by foundation 32 and being arranged on foundation 32 middle part and being respectively provided with
Side column 33 at foundation 32 two ends forms and has E shape cross section.The width of above-mentioned supporting table 14 is arranged by this preferred embodiment
For the half of the thickness of the foundation 32 of magnetic core 3, the height of supporting table 14 is set to 0.8～1.0mm.
When the electronic transformer of this preferred embodiment is assembled, first, by several coil windings 11 wound on coil
In the spiral portion 10 of skeleton 1, and their lead is respectively wound around on several winding terminals 17 of terminal board 15 bottom, warp
Form electrical connection with winding terminals 17 after crossing scolding tin, between several coil windings 11, be wound around insulating tape respectively；Then, will
Two magnetic cores 3 are arranged on the day font magnetic core be paired on coil rack 1, two of which magnetic core 3 along the direction of arrow in the figure
Center pillar 31 enter hollow cavity 12 opposite pairing assembling, the foundation 32 of two magnetic cores 3 from the two ends plug-in mounting in spiral portion 10 respectively
Respectively part support is in two supporting tables 14, and part in supporting table 14 for the non-support of foundation 32 respectively with two terminals
Leave gap between platform 15, actually define gap between the hanging part of foundation and terminal board.The two of two magnetic cores 3
Support exceeds partly going up of spiral portion 10 in two terminal boards 15 to bar side column 33 respectively, and respectively in the both sides pair in spiral portion 10
Connect, the end face 34 of two side columns 33 of two magnetic cores 3 is carried out bonding with epoxy glue, so that two magnetic cores 3 after assembling
Foundation 32 and side column 33 are looped around outside spiral portion 10, form closed magnetic circuit；Finally, by the first halfbody 21 and the second halfbody 22 along figure
Direction shown in middle arrow is assembled, and their middle axial planes in spiral portion 10 are combined into the cover body with four covers, its
In this lower flange 24 of two positioned at spiral portion 10 end position of cover body covers relatively of being combined into be separately mounted to
State in two gaps, that is, support and covers on the lower surface of the foundation 32 of two magnetic cores 3 on terminal board 15, and side 25
It is respectively overlay on the side surface and upper surface of foundation 32 of two magnetic cores 3 with upper flange 26, and be located at spiral portion 10 both sides
The two relatively lower flange 27 of covers, side 28 and upper flanges 29 be respectively overlay under two side columns 33 of two magnetic cores 3
On surface, side surface and upper surface, expose wound on window 2b from isolation cover 2 for the coil windings 11 on coil rack 1, with
The cover body making isolation cover 2 is coated on the exposed surface of magnetic core 3 completely, and isolation cover 2 is comprehensive complete from top to bottom, left and right, front and rear
Bread wraps magnetic core 3, such that it is able to realize isolating well, and the jacket 223 being arranged on the second halfbody 22 be placed exactly in convex
The top position of platform 13, on this boss 13, isolation cover 2 is fixed on coil rack 1 point glue；So far, said modules assembling
Become electronic transformer as shown in Figure 6.
Understand from the sectional view of this preferred embodiment electronic transformer shown in Fig. 7 to Figure 10, isolation cover 2 from up and down,
Left and right, in front and back three orientation wrap magnetic core 3 comprehensively so that between transformator itself magnetic core 3 and metal terminal 17 and
Transformer magnetic core 3 is effectively guaranteed with the safe distance of PCB substrate electronic device, thus better meet product safety will
Ask.
The present invention is not limited to above-mentioned specific embodiment, according to the above, according to the ordinary technical knowledge of this area
And customary means, under the premise of without departing from the present invention above-mentioned basic fundamental thought, the present invention can also make other various ways
Equivalent modifications, replacement or change, for example the mounting means of transformer coil frame is changed to vertical installation by horizontal type, or every
It is changed to be assembled by spiral portion two ends from the assembly orientation of cover, or the marks such as general EI, ER, EE, ETD, the EPC of industry selected by magnetic core
Quasi- ferrite core, they are the E-type magnetic heart of standard, or magnetic core selects the standard day font magnetic core of integral type, above-mentioned volume
Line portion has a mounting groove, day the newel of font magnetic core enter coil rack from this mounting groove plug-in mounting, and install plug-in mounting complete after
Mounting groove is closed with catch, day font magnetic core frame columns exposed outside coil rack, the cover body of above-mentioned isolation cover have with
The internal face that the outer surface of day font magnetic core frame columns is adapted, this internal face is close to a day outer surface for font magnetic core frame columns
On, or the other split modes of isolation cover employing, such as one of cover of isolation cover can be detachable with other three covers
Formula assembles, or does not cover the joint gap between two halfbodies using jacket and directly twined this joint gap with insulating tape
It is wound up, or magnetic core selects the standard magnetic core such as U-shaped, annular, as long as being wrapped on magnetic core using insulated isolation cover, by magnetic
The heart is spaced with other electronic devices on winding terminals and PCB substrate, all falls among protection scope of the present invention.
Claims (9)
1. a kind of electronic transformer, including the coil rack (1) being provided with winding terminals (17) be arranged on coil rack (1)
Magnetic core (3), magnetic core (3) there is center pillar (31), foundation (32) and side column (33) it is characterised in that：Described electronic transformer
Also include the insulated isolation cover (2) being provided with opening (2a)；
The cover body of described isolation cover (2) is coated on the exposed surface of described magnetic core (3) from top to bottom, left and right, front and rear three orientation,
And described coil rack (1) is locally exposed from the opening of isolation cover (2) (2a), described winding terminals (17) are arranged on coil bone
The position that frame (1) exposes；
Described isolation cover (2) is the cover body with four covers, is engaged by two halfbodies and forms, four covers of this cover body with
" mouth " font is sequentially connected and surrounds internal cavity (23), and the vertical sectional shape of each cover is breach towards described inside
Cavity (23) " [" shape includes side and the upper flange vertically extending from side and lower flange composition；Described coil rack
(1) include the step-like supporting table (14) of two-stage and terminal board (15), foundation (32) only part support in supporting table, foundation
(32) non-support forms gap between the part in supporting table and terminal board；Described lower flange is installed in the gap, and covers
Cover on the lower surface of the foundation (32) of magnetic core (3)；The side column (33) of described magnetic core is contained in described internal cavity (23).
2. electronic transformer according to claim 1 it is characterised in that：Described magnetic core (3) is day font magnetic core, described line
Ring framework (1) is sleeved on the center pillar (31) of this day font magnetic core, day font magnetic core side column (33) exposed in coil rack (1)
Outside, the cover body of described isolation cover (2) has the internal face being adapted with the outer surface of described day font magnetic core side column (33), should
Internal face is close on the outer surface of described day font magnetic core side column (33).
3. electronic transformer according to claim 2 it is characterised in that：Described day font magnetic core by two standards E type
Magnetic core (3) combinations of pairs forms, and described coil rack (1) includes spiral portion (10) and two support bases, described spiral portion (10)
For having a cylinder of hollow cavity (12), the two ends bottom of this cylinder respectively laterally lower section extend the step-like support of two-stage
Seat, wherein higher level and subordinate's step are respectively supporting table (14) and the terminal board (15) of support base, the line of described electronic transformer
, on described spiral portion (10), the center pillar (31) of described two magnetic cores (3) is respectively from spiral portion (10) for circle winding (11)
Two ends plug-in mounting enters in described hollow cavity (12), and foundation (32) the difference part support of two magnetic cores (3) is in two supporting tables
(14) on, and the non-support of foundation (32) is between the part in supporting table (14) leaves respectively and two terminal boards (15) between
Gap, two side columns (33) of two magnetic cores (3) are docked in the both sides of spiral portion (10) respectively, two phases of described isolation cover (2)
Lower flange (24) to cover is separately mounted in described two gaps and covers the following table of the foundation (32) in two magnetic cores (3)
On face, this two relatively the sides (25) of covers and upper flange (26) be respectively overlay in two magnetic cores (3) foundation (32) side
On surface and upper surface, the lower flange (27) of two other relative cover, side (28) and upper flange (29) are respectively overlay in
On the lower surface of two side columns (33) of two magnetic cores (3), side surface and upper surface.
4. electronic transformer according to claim 3 it is characterised in that：The length (D1) of described terminal board (15) is slightly larger than
The radial width (D2) of described spiral portion (10), two side columns (33) difference supports of described two magnetic cores (3) are in two terminals
Platform (15) exceeds partly going up of spiral portion (10).
5. electronic transformer according to claim 4 it is characterised in that：Several described winding terminals (17) are respectively simultaneously
Socket is contained in the bottom of described two terminal boards (15).
6. electronic transformer according to claim 5 it is characterised in that：The bottom of described two terminal boards (15) is also distinguished
Several trapezoid boss (16) have been arranged side by side it, the inclined-plane of this trapezoid boss (16) is towards described winding terminals (17).
7. electronic transformer according to claim 6 it is characterised in that：Two described terminal boards (15) are respectively in outside
Face is provided with boss (13), and between described boss (13) and isolation cover (2), point has glue.
8. the electronic transformer according to any one of claim 1,2,4 to 7 it is characterised in that：Described isolation cover (2)
The middle axial plane in spiral portion (10) for two halfbodies engage and form；The junction surface of one of halfbody is provided with for covering described two
The jacket (223) of the joint gap between individual halfbody.
9. electronic transformer according to claim 3 it is characterised in that：Two halfbodies of described isolation cover (2) are in volume
The middle axial plane in line portion (10) engages and forms；The junction surface of one of halfbody is provided with for covering connecing between described two halfbodies
The jacket (223) of joint close gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585705.5A CN103035364B (en) | 2012-12-28 | 2012-12-28 | Electronic transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585705.5A CN103035364B (en) | 2012-12-28 | 2012-12-28 | Electronic transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103035364A CN103035364A (en) | 2013-04-10 |
| CN103035364B true CN103035364B (en) | 2017-02-15 |
Family
ID=48022170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210585705.5A Active CN103035364B (en) | 2012-12-28 | 2012-12-28 | Electronic transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103035364B (en) |
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| CN105702422A (en) * | 2016-04-08 | 2016-06-22 | 韩江 | Ferrite magnetic core and manufacturing method thereof |
| CN106057435A (en) * | 2016-07-20 | 2016-10-26 | 长兴荣兴电子有限公司 | E type magnetic core |
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| CN107068322A (en) * | 2017-06-22 | 2017-08-18 | 太仓市变压器有限公司 | A kind of magnetic core for transformer structure |
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| DE102018202669B3 (en) * | 2018-02-22 | 2019-07-04 | SUMIDA Components & Modules GmbH | Inductive component and method for producing an inductive component |
| CN108682545B (en) * | 2018-07-04 | 2024-05-31 | 浙江和兴电子有限公司 | High-voltage-resistant multi-winding transformer |
| CN108847338B (en) * | 2018-07-06 | 2024-03-26 | 河南森源电气股份有限公司 | Transformer |
| JP7168902B2 (en) * | 2018-07-30 | 2022-11-10 | Tdk株式会社 | Bobbin and coil device |
| CN113421738B (en) * | 2021-05-27 | 2024-02-09 | 内蒙古鄂尔多斯电子有限责任公司 | Small-volume patch common-mode inductor |
| CN114724847B (en) * | 2022-04-06 | 2024-05-31 | 扬州市职业大学(扬州开放大学) | Main shaft structure of winding machine of electronic transformer |
| CN114823096B (en) * | 2022-06-25 | 2022-10-21 | 深圳市万志宇科技有限公司 | Electronic transformer with anti-creeping function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933052A (en) * | 2006-08-25 | 2007-03-21 | 广州金升阳科技有限公司 | Small non-pin transformer structure |
| CN101645347A (en) * | 2008-08-07 | 2010-02-10 | 台达电子工业股份有限公司 | Transformer structure |
| CN202034181U (en) * | 2011-01-04 | 2011-11-09 | 程品电子科技(东莞)有限公司 | Assembling structure for transformer iron core |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI401709B (en) * | 2009-04-01 | 2013-07-11 | Delta Electronics Inc | Transformer structure with inductance leakage |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933052A (en) * | 2006-08-25 | 2007-03-21 | 广州金升阳科技有限公司 | Small non-pin transformer structure |
| CN101645347A (en) * | 2008-08-07 | 2010-02-10 | 台达电子工业股份有限公司 | Transformer structure |
| CN202034181U (en) * | 2011-01-04 | 2011-11-09 | 程品电子科技(东莞)有限公司 | Assembling structure for transformer iron core |
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| CN103035364A (en) | 2013-04-10 |
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Denomination of invention: An electronic transformer Effective date of registration: 20210531 Granted publication date: 20170215 Pledgee: China Co. truction Bank Corp Guangzhou economic and Technological Development Zone sub branch Pledgor: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980004183 |
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