CN109448970A - Switching mode power supply transformer - Google Patents
Switching mode power supply transformer Download PDFInfo
- Publication number
- CN109448970A CN109448970A CN201811317978.5A CN201811317978A CN109448970A CN 109448970 A CN109448970 A CN 109448970A CN 201811317978 A CN201811317978 A CN 201811317978A CN 109448970 A CN109448970 A CN 109448970A
- Authority
- CN
- China
- Prior art keywords
- power supply
- switching mode
- mode power
- coil windings
- magnetic
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
Abstract
The present invention provides a kind of switching mode power supply transformers, including magnetic core, magnetic core includes the magnetic holder with accommodating cavity and the magnetic pole in accommodating cavity, the two sides of magnetic holder offer opening respectively, the switching mode power supply transformer further includes coil windings, coil windings are wound in the magnetic pole by flat enameled wire along the radially superimposed of magnetic pole, and the outer circle coil of coil windings is on circle coil in the inner；The end of coil windings forms pin, and each pin draws magnetic holder through opening, and the opening of radial two sides two of coil windings stretches out magnetic holder.Using flat enameled wire, the coiling in magnetic pole forms coil windings to the present invention, and is around in outer circle coil on interior circle coil, so that coil windings are radially extended along magnetic pole, to reduce volume, coil windings is allow to bear biggish electric current, reduces fever；It stretches out the two sides of coil windings outside magnetic holder, to improve radiating efficiency, and then guarantees the switching mode power supply transformer small volume of production and larger current and power can be born.
Description
Technical field
The invention belongs to transformer technology fields, are to be related to a kind of switching mode power supply transformer more specifically.
Background technique
Switching mode power supply transformer is common electronic device.Switching mode power supply transformer generally comprises magnetic core, is wound in magnetic core
On coil and the pin terminals that are mounted on magnetic core, overhang be weldingly connected to use with corresponding pin terminal.Line
Circle is generallyd use enameled wire (the rounded enameled wire in section) coiling or is made using punching press copper sheet or use flat wire (flat
Enameled wire) or using internal PCB (printed circuit board) production for being equipped with coil.For flat transformer, currently generally use
Enameled wire same plane coiling or using pcb board make coil, however this switching mode power supply transformer bear electric current compared with
It is small, the case where being only applicable to low current.And for the switching mode power supply transformer of high-power high-current, due to switching mode power supply transformer
Coil winding need that heat can be generated by biggish electric current, generally using punching press copper sheet along magnetic core it is axially stacked setting or
Using flat wire along the coiling of magnetic core axial screw or using the enameled wire being relatively large in diameter along magnetic core axial screw coiling, to increase
Heat dissipation area, and guarantee that coil can bear biggish electric current.But this structure can make the height of switching mode power supply transformer
It is larger, and then keep the volume of switching mode power supply transformer larger.
Summary of the invention
The purpose of the present invention is to provide a kind of switching mode power supply transformers, existing in the prior art powerful to solve
The bulky problem of switching mode power supply transformer.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of switching mode power supply transformer, including magnetic are provided
Core, the magnetic core include the magnetic holder with accommodating cavity and the magnetic pole in the accommodating cavity, and the two sides of the magnetic holder are opened respectively
Equipped with the opening for being connected to the accommodating cavity, the switching mode power supply transformer further includes the coil windings being wound in the magnetic pole,
The coil windings are wound in the magnetic pole by flat enameled wire along the radially superimposed of the magnetic pole, and the coil windings is outer
Circle coil is on circle coil in the inner；Each end of the coil windings is respectively formed pin, and each pin is through the opening
The magnetic holder is drawn, radial two sides two opening of the coil windings stretches out the magnetic holder；The coil windings
Including the armature winding that is wound in the magnetic pole and the secondary windings being wound in the magnetic pole, the armature winding with it is described
Secondary windings is arranged side by side along the axial direction of the magnetic pole.
Further, the range of the ratio between the width of the flat enameled wire and the flat enameled wire thickness is 10-15.
Further, the width of the flat enameled wire be 2.4mm, the flat enameled wire with a thickness of 0.2mm.
Further, the resistance value of the coil windings is less than or equal to 9m Ω.
Further, the flat enameled wire includes that the polyamidoimide of flat copper wire and the package flat copper wire is exhausted
Edge layer.
Further, the magnetic core is FERRITE CORE.
Further, two input pins are drawn at the both ends of the armature winding respectively, and the middle section of the secondary windings is adopted
Output pin is connected and led to flat enameled wire, and two output pins are drawn at the both ends of the secondary windings respectively.
Further, each input pin is drawn by the opening of the magnetic holder side；Each output pin is by described
The opening of the magnetic holder other side is drawn.
Further, the end of each input pin is equipped with input pad, and the end of each output pin is equipped with defeated
Pad out.
Further, the switching mode power supply transformer further includes wrapping up corresponding to except the coil windings exposing magnetic holder
Partial insulation protection glue.
The beneficial effect of switching mode power supply transformer provided by the invention is: compared with prior art, the present invention uses flat
The coiling in magnetic pole of flat enameled wire forms coil windings, and is around in outer circle coil on interior circle coil, so that coil windings edge
Magnetic pole radially extends, and to reduce volume, coil windings is allow to bear biggish electric current, reduces fever；Make coil windings simultaneously
Two sides stretch out outside magnetic holder, to improve radiating efficiency, and then guarantee the switching mode power supply transformer small volume of production and can hold
By larger current and power；And the end of coil windings extraction magnetic holder be can be convenient into processing and fabricating to form pin, while just
In installing and using.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the positive structure diagram of switching mode power supply transformer provided in an embodiment of the present invention；
Fig. 2 is the side structure schematic view of switching mode power supply transformer provided in an embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of switching mode power supply transformer provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of flat enameled wire cross section in switching mode power supply transformer shown in Fig. 3；
Fig. 5 is the schematic diagram of switching mode power supply transformer provided in an embodiment of the present invention.
Wherein, each attached drawing main mark in figure:
100- switching mode power supply transformer；10- magnetic core；11- magnetic pole；20- magnetic holder；21- box body；211- cassette bottom；212- side wall；
22- box cover；221- first side；222- second side；223- third side；The 4th side 224-；30- coil windings；At the beginning of 31-
Grade winding；32- secondary windings；310- pin；311- input pin；312- input pad；321- output pin；322- output weldering
Disk；The flat enameled wire of 33-；331- flat copper wire；332- insulating layer；41- protective glue.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined." several " are meant that one or more, unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term " center ", " length ", " width ", " thickness ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
Also referring to Fig. 1 to Fig. 5, now switching mode power supply transformer 100 provided by the invention is illustrated.The switch
Power transformer 100, including magnetic core 10 and coil windings 30；Magnetic core 10 includes magnetic holder 20 and magnetic pole 11, has in magnetic holder 20 and holds
It sets chamber (not marked in figure), the two sides of magnetic holder 20 offer opening (not marking in figure) respectively, and each opening is connected to accommodating cavity；Magnetic
Column 11 is set in accommodating cavity, and the both ends of magnetic pole 11 are connected with the bottom and top of magnetic holder 20 respectively.30 coiling of coil windings
In in magnetic pole 11, to support coil windings 30 by magnetic pole 11, while playing the role of magnetic conduction.Coil windings 30 are by flat paint
Envelope curve 33 is laminated coiling and forms, i.e., flat enameled wire 33 is wound in magnetic pole 11, to form coil windings 30, and coil around
The outer circle coil of group 30 is on circle coil in the inner, so that the radially extending along magnetic pole 11 of coil windings 30, i.e. coil windings 30
It is wound in the magnetic pole 11 by flat enameled wire 33 along the radially superimposed of magnetic pole 11, to promote the ability for bearing electric current, is subtracted simultaneously
Small occupied space.Each end of coil windings 30 is respectively formed pin 310, and each pin 310 draws magnetic holder 20 through opening, thus respectively
Pin 310 can use also in flat after magnetic holder 20 directly as pin 310, made with facilitating, pin 310 may be implemented
Multidirectional-moving to be installed and used, so that the switching mode power supply transformer 100 of production multi-faceted is flexibly installed and used.Coil
The opening of radial two sides two of winding 30 stretches out magnetic holder 20；To improve radiating efficiency, convenient for bearing bigger electric current and function
Rate.
Coil windings 30 include the armature winding 31 being wound in magnetic pole 11 and the secondary windings 32 being wound in magnetic pole 11,
Armature winding 31 and secondary windings 32 are arranged side by side along the axial direction of magnetic pole 11, to guarantee to have lesser thickness in height space
Degree, while the transformation function of transformer may be implemented.So that armature winding 31 is by flat enameled wire 33 along the radial layer of magnetic pole 11
Lap wound is formed in the magnetic pole 11, and armature winding 31 respectively stretch out magnetic holder 20 and form pin 310 by end.Secondary windings 32 is by flat enamel-cover
Line 33 is wound in the magnetic pole 11 along the radially superimposed of magnetic pole 11, and secondary windings 32 respectively stretch out magnetic holder 20 and form pin 310 by end.
Switching mode power supply transformer 100 provided by the invention, compared with prior art, the present invention are existed using flat enameled wire 33
Coiling forms coil windings 30 in magnetic pole 11, and is around in outer circle coil on interior circle coil, so that coil windings 30 are along magnetic pole
11 radially extend, and to reduce volume, coil windings 30 are allow to bear biggish electric current, reduce fever；Make coil windings simultaneously
30 two sides are stretched out outside magnetic holder 20, to improve radiating efficiency, and then guarantee 100 small volume of switching mode power supply transformer of production simultaneously
And larger current and power can be born；And magnetic holder 20 is drawn into form pin 310 in the end of coil windings 30, it can be convenient and add
Work production, while it being easily installed use, and the structure is not necessarily to that skeleton or 310 terminal of pin are arranged on magnetic core 10, structure is more
It is simple.
Further, referring to Figure 4 together, as a kind of specific reality of switching mode power supply transformer 100 provided by the invention
Apply mode, the range of the ratio between the width b of flat enameled wire 33 and the flat 33 thickness a of enameled wire are 10-15, i.e., flat enameled wire
33 width b is 10-15 times of its thickness a, in order to coiling, identical diameter range can with coiling more multiturn coil,
When identical the number of turns coil, bigger electric current can be born, and keeps the thickness of coil windings 30 smaller, to reduce the switch of production
The volume of power transformer 100.
Further, also referring to Fig. 1, Fig. 3 and Fig. 4, as switching mode power supply transformer 100 provided by the invention one
Kind specific embodiment, the width b of flat enameled wire 33 are 2.4mm, and the thickness a of flat enameled wire 33 is 0.2mm, are held with being promoted
By the ability of electric current, reduce fever, while making 100 small volume of switching mode power supply transformer of production, power is big.
Further, also referring to Fig. 1, Fig. 3 and Fig. 4, as switching mode power supply transformer 100 provided by the invention one
The resistance value of kind specific embodiment, coil windings 30 is less than or equal to 9m Ω.That is the resistance value of armature winding 31 is less than or waits
It is less than or equal to 9m Ω in the resistance value of 9m Ω, secondary windings 32, passes through calorific value when high current to reduce, promoted and bear electricity
The ability of stream, voltage swing.
Further, also referring to Fig. 1, Fig. 3 and Fig. 4, as switching mode power supply transformer 100 provided by the invention one
Kind specific embodiment, flat enameled wire 33 include flat copper wire 331 and the polyamidoimide insulation for wrapping up flat copper wire 331
Layer 332.Using flat copper wire 331, to reduce resistance value, and then reduce the armature winding 31 of production and the resistance of secondary windings 32
Value, to be not easy to generate heat when passing through high current, promotes the rated current of the switching mode power supply transformer 100 of production, reaches low straight
The requirement of leakage resistance and high rated current.Polyamidoimide insulating layer 332 is wrapped up in flat copper wire 331, it can be better
It insulate, and promotes high frequency tolerant performance, while guaranteeing that flat enameled wire 33 has good high temperature resistance, high temperature resistant is reachable
To 180 DEG C.
Further, a kind of tool also referring to Fig. 1 and Fig. 3, as switching mode power supply transformer 100 provided by the invention
Body embodiment, magnetic core 10 are FERRITE CORE.I.e. magnetic core 10 is made of Ferrite Material, higher so as to have in guarantee
Magnetic conductivity under, have preferable temperature coefficient, can work under higher and lower operating temperature, loss it is low.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as switching mode power supply transformer 100 provided by the invention one
Two input pins 311 are drawn at kind specific embodiment, the both ends of armature winding 31 respectively, are used in order to connect.Further
The middle section on ground, secondary windings 32 is connected using flat enameled wire 33 and leads to output pin 321, and the both ends of secondary windings 32
Two output pins 321 are drawn respectively.In order to use, while it can be selected as needed transformation ability.That is coil windings 30
Pin 310 include above-mentioned two input pin 311 and above three output pin 321.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as switching mode power supply transformer 100 provided by the invention one
Kind specific embodiment, each input pin 311 are drawn by the opening of 20 side of magnetic holder；Each output pin 321 is another by magnetic holder 20
The opening of side is drawn.The structure not only facilitates production, while can be convenient use, and can be smaller by the setting of each opening, with
Reduce leakage field.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as switching mode power supply transformer 100 provided by the invention one
Kind specific embodiment, the end of each input pin 311 are equipped with input pad 312, and the end of each output pin 321 is equipped with output
Pad 322, to facilitate welding to use.
Further, also referring to Fig. 1, Fig. 3 and Fig. 5, as switching mode power supply transformer 100 provided by the invention one
Kind specific embodiment, the switching mode power supply transformer 100 further include that package coil windings 30 expose corresponding part except magnetic holder 20
Insulation protection glue 41.Expose the portion envelops insulation protection glue 41 except magnetic holder 20, i.e. armature winding 31 in coil windings 30
The portion envelops insulation protection glue 41 except magnetic holder 20 is stretched out with secondary windings 32, it can realizes the guarantor to coil windings 30
Shield, and good insulating effect can be played.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as switching mode power supply transformer 100 provided by the invention
Body embodiment, magnetic holder 20 include box body 21 and box cover 22, and box body 21 includes cassette bottom 211 and prolonged by the both ends protrusion of cassette bottom 211
The side wall 212 stretched, box cover 22 are installed on side wall 212, and the both ends of magnetic pole 11 are connected with cassette bottom 211 and box cover 22 respectively, the knot
Structure can be convenient processing and fabricating, while be convenient for the coiling of coil windings 30.
Further, a kind of tool also referring to Fig. 1 to Fig. 3, as switching mode power supply transformer 100 provided by the invention
The inner surface of body embodiment, side wall 212 is arc-shaped, so that the inner surface at the both ends of accommodating cavity is arc-shaped in magnetic holder 20,
Convenient for accommodating coil windings 30, the utilization rate in space in accommodating cavity is promoted.
Further, box body 21 is to be integrally formed, and so as to processing and fabricating, while guaranteeing the connection of cassette bottom 211 Yu side wall 212
Intensity.Further, magnetic pole 11 and box body 21 are integrally formed, to guarantee the bonding strength of magnetic pole 11 Yu box body 21.Certainly, at it
In its some embodiment, magnetic pole 11 can also be integrally formed with box cover 22.
Further, box cover 22 is in two sides symmetrical structure, and box cover 22 is in both ends symmetrical structure, not only facilitates processing and fabricating,
It can make each guide magnetic symmetry of magnetic core 10 simultaneously, reduce loss.
Colleague, box body 21 are in two sides symmetrical structure, and box body 21 is in both ends symmetrical structure, so as to processing and fabricating, while can be with
Make each guide magnetic symmetry of magnetic core 10, reduces loss.
Further, box cover 22 is identical as the shape of cassette bottom 211, not only facilitates production, but also can guarantee 10 liang of magnetic core
The consistency in face reduces loss.
Further, box cover 22 have two first sides 221 that are parallel and being located at 22 both ends of box cover, respectively by
The both ends of each first side 221 tilt extend to the outside the second side 222 of extension respectively, by each second side 222 far from first
One end of side 221 is inwardly angled to shrink the third side 223 extended and is separately connected two in 22 the same side of the box cover
4th side 224 of 223 end of third side；Two the 4th sides 224 are arranged in parallel, and each 4th side 224 is parallel to box cover
22 length directions, the angle between each second side 222 and adjacent first side 221 is obtuse angle, each third side 223 and phase
Angle between adjacent 4th side 224 is obtuse angle, which not only facilitates production, while multiple sides can be in order to solid
It is fixed.Also, the structure due to cassette bottom 211 is identical as 22 shape of box cover, and the two sidewalls 212 of box body 21 are by the both ends of cassette bottom 211
Extend, so that 20 both-side opening of magnetic holder formed is smaller, and region bigger in coil windings 30 can be wrapped up, to reduce
Leakage field reduces loss.
Further, the distance between two the 4th sides 224 are less than or equal to the length of first side 221, not only side
Just it makes, while can reduce the width of magnetic holder 20, and then reduce the volume of the switching mode power supply transformer 100 of production.
Further, 22 the same end of box cover is big far from the distance between 221 one end of first side to two second sides 222
In or equal to coil windings 30 diameter.So as to so that the maximum width of magnetic core 10 is greater than or equal to the straight of coil windings 30
Diameter so as to so that magnetic core 10 protects coil windings 30, and increases magnetic core 10 and wraps up region bigger in coil windings 30, with
Leakage field is reduced, loss is reduced.
Further, Fig. 1 to Fig. 5 is please referred to, -55 can be born as switching mode power supply transformer 100 provided by the invention
DEG C~125 DEG C of operating temperature range.Low D.C. resistance and high rated current application requirement may be implemented.It installs and uses flexibly,
High reliablity can achieve military requirements.And it can satisfy the test requirements document of GJB2829 and GJB360B.And it is easy to operate,
It is easily achieved batch production.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. switching mode power supply transformer, including magnetic core, the magnetic core includes having the magnetic holder of accommodating cavity and being set in the accommodating cavity
Magnetic pole, the two sides of the magnetic holder offer the opening for being connected to the accommodating cavity respectively, it is characterised in that: the Switching Power Supply becomes
Depressor further includes the coil windings being wound in the magnetic pole, and the coil windings are by flat enameled wire along the radial direction of the magnetic pole
Stacking is wound in the magnetic pole, and the outer circle coil of the coil windings is on circle coil in the inner；The coil windings it is each
End is respectively formed pin, and each pin draws the magnetic holder, the radial two sides warp of the coil windings through the opening
Two openings stretch out the magnetic holder；The coil windings include the armature winding being wound in the magnetic pole and are wound in institute
The axial direction that the secondary windings in magnetic pole, the armature winding and the secondary windings are stated along the magnetic pole is arranged side by side.
2. switching mode power supply transformer as described in claim 1, it is characterised in that: the width of the flat enameled wire is flat with this
The range of the ratio between enameled wire thickness is 10-15.
3. switching mode power supply transformer as claimed in claim 2, it is characterised in that: the width of the flat enameled wire is 2.4mm,
The flat enameled wire with a thickness of 0.2mm.
4. switching mode power supply transformer as described in claim 1, it is characterised in that: the resistance value of the coil windings is less than or waits
In 9m Ω.
5. switching mode power supply transformer as described in claim 1, it is characterised in that: the flat enameled wire include flat copper wire and
Wrap up the polyamidoimide insulating layer of the flat copper wire.
6. switching mode power supply transformer as described in any one in claim 1-5, it is characterised in that: the magnetic core is ferrite magnetic
Core.
7. switching mode power supply transformer as described in any one in claim 1-5, it is characterised in that: the both ends of the armature winding point
Not Yin Chu two input pins, the middle section of the secondary windings connects and leads to output pin, and institute using flat enameled wire
Two output pins are drawn respectively in the both ends for stating secondary windings.
8. switching mode power supply transformer as claimed in claim 7, it is characterised in that: each input pin is by the magnetic holder side
Opening draw；Each output pin is drawn by the opening of the magnetic holder other side.
9. switching mode power supply transformer as described in any one in claim 1-5, it is characterised in that: the end of each input pin
Equipped with input pad, the end of each output pin is equipped with o pads.
10. switching mode power supply transformer as described in any one in claim 1-5, it is characterised in that: the switching mode power supply transformer
It further include the insulation protection glue for wrapping up the coil windings and exposing corresponding part except the magnetic holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317978.5A CN109448970A (en) | 2018-11-07 | 2018-11-07 | Switching mode power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811317978.5A CN109448970A (en) | 2018-11-07 | 2018-11-07 | Switching mode power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109448970A true CN109448970A (en) | 2019-03-08 |
Family
ID=65550973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811317978.5A Pending CN109448970A (en) | 2018-11-07 | 2018-11-07 | Switching mode power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109448970A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093634A (en) * | 2000-09-19 | 2002-03-29 | Matsushita Electric Ind Co Ltd | Low-profile transformer |
| CN105913998A (en) * | 2015-02-23 | 2016-08-31 | 胜美达集团株式会社 | Electronic component |
| CN206059141U (en) * | 2016-10-10 | 2017-03-29 | 深圳诺维信电子科技有限公司 | One kind keeps away air gap electromagnetic components and parts |
| CN206961648U (en) * | 2017-06-29 | 2018-02-02 | 深圳市博多电子有限公司 | A kind of novel flat horizontal line is vertical around transformer |
| CN209216722U (en) * | 2018-11-07 | 2019-08-06 | 深圳振华富电子有限公司 | Switching mode power supply transformer |
-
2018
- 2018-11-07 CN CN201811317978.5A patent/CN109448970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093634A (en) * | 2000-09-19 | 2002-03-29 | Matsushita Electric Ind Co Ltd | Low-profile transformer |
| CN105913998A (en) * | 2015-02-23 | 2016-08-31 | 胜美达集团株式会社 | Electronic component |
| CN206059141U (en) * | 2016-10-10 | 2017-03-29 | 深圳诺维信电子科技有限公司 | One kind keeps away air gap electromagnetic components and parts |
| CN206961648U (en) * | 2017-06-29 | 2018-02-02 | 深圳市博多电子有限公司 | A kind of novel flat horizontal line is vertical around transformer |
| CN209216722U (en) * | 2018-11-07 | 2019-08-06 | 深圳振华富电子有限公司 | Switching mode power supply transformer |
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