CN206931469U - A kind of multiple-channel output transformer of switching power control system - Google Patents

A kind of multiple-channel output transformer of switching power control system Download PDF

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Publication number
CN206931469U
CN206931469U CN201720055126.8U CN201720055126U CN206931469U CN 206931469 U CN206931469 U CN 206931469U CN 201720055126 U CN201720055126 U CN 201720055126U CN 206931469 U CN206931469 U CN 206931469U
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China
Prior art keywords
winding
windings
primary
armature winding
channel output
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Expired - Fee Related
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CN201720055126.8U
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Chinese (zh)
Inventor
薛根生
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Huizhou Kang Dian Industrial Co Ltd
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Huizhou Kang Dian Industrial Co Ltd
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Abstract

The utility model discloses a kind of multiple-channel output transformer of switching power control system, including skeleton, magnetic core and multichannel winding, it is characterized in that, the multichannel winding includes primary side armature winding and secondary secondary windings, the secondary secondary windings is no less than two, the skeleton is provided with hollow tubular mounting groove, the magnetic core is installed in the mounting groove, the primary side armature winding, the layering of secondary secondary windings is wound in the mounting groove outer wall, the primary side armature winding is uniformly divided into two layers and is wound in mounting groove outer wall, multiple-channel output transformer leakage inductance is low disclosed in the utility model, delivery efficiency is high.

Description

A kind of multiple-channel output transformer of switching power control system
Technical field
The utility model relates to transformer technology field, the multiple-channel output transformation of especially a kind of switching power control system Device.
Background technology
Under existing present situation, with the fast development of information technology, electronic system develops to the high direction that complicates of high integration, Inevitable requirement integrates more components on smaller substrate.And the most important transformer of magnetic elements is used as, in the modern times It is widely used in power electronics and telecommunication circuit, thus it is more and more urgent for the small form factor requirements of transformer.Prior art In, most transformer has fixed magnetic core, is wound with primary side armature winding and secondary secondary windings thereon.Based on iron material High magnetic conductivity, most magnetic flux are confined in iron core, and therefore, two groups of coils can thereby obtain the magnetic coupling of suitable high level Close.But in existing transformer, most of magnetic line of force caused by primary coil can not exist serious by secondary coil Leakage inductance.Leakage inductance can make transformer produce eddy-current loss, when transformer works, there is the magnetic line of force to pass through in magnetic core, with the magnetic line of force Induced-current will be produced in vertical plane, because this electric current self-contained closed-loop path forms circulation, and into swirl shape, vortex In the presence of making magnetic core generate heat, consumed energy, and then reduce the power output and efficiency of transformer.
Utility model content
In view of this, the utility model aims to provide a kind of low drain sense, the high switching power control system of delivery efficiency it is more Road exports transformer.
The purpose of this utility model is achieved through the following technical solutions:
A kind of multiple-channel output transformer of switching power control system, including skeleton, magnetic core and multichannel winding, its feature exist In the multichannel winding includes primary side armature winding and secondary secondary windings, and the secondary secondary windings is described no less than two Skeleton is provided with hollow tubular mounting groove, and the magnetic core is installed in the mounting groove, and the primary side armature winding, secondary are secondary The mounting groove outer wall is wound in around component layers, the primary side armature winding is uniformly divided into two layers and is wound in mounting groove outer wall.
Primary side armature winding, the winding method of secondary secondary windings can use the winding method of prior art.
In use, primary side armature winding forms closed-loop path, primary side armature winding by being connected with ac power input end Alternating current is produced, by inductive, makes also to produce electric current in each loaded secondary secondary windings of loading.Primary side primary around Two layers of coiling of component, the degree of coupling of primary side armature winding and each secondary secondary windings is improved, leakage inductance is reduced, so as to improve transformation The delivery efficiency of device.
Preferably, the secondary secondary windings individual layer is wound in the magnetic core, and the secondary secondary winding layers are located at two layers Between the primary side armature winding.Secondary secondary winding layers improve the secondary in intermediate layer between two layers of primary side armature winding The coupling area of secondary windings and two layers of primary side armature winding, further reduces leakage inductance, improves the delivery efficiency of transformer.
Preferably, the secondary secondary winding layers are located at two layers of primary side armature winding middle.Secondary secondary windings Layer is located at two layers of primary side armature winding middle, under identical winding construction, at the beginning of the secondary secondary windings in intermediate layer and two layers of primary side The coupling area of level winding is maximum, further reduces leakage inductance, improves transformer delivery efficiency.
Preferably, the magnetic core is solid cylinder.Using solid cylinder, air gap is small, and leakage inductance is small, transformer output Efficiency high, cylinder coiling are simple and convenient.
Preferably, the secondary secondary windings number is even number, the winding structure of the secondary secondary windings for two-wire simultaneously Around structure.
It is described can also the number of secondary secondary windings be odd number, it is preferential to use Double-wire parallel wound structure, remaining one around Group uses the winding method of the prior arts such as single line coiling.
Using Double-wire parallel wound structure, and around secondary secondary windings between D.C. resistance is consistent, consistent, the latent cloth electric capacity of induction reactance Unanimously, suppression common mode interference, the stability of effective high output are advantageous to.
Preferably, the multichannel winding also includes feedback winding, and the feedback winding is wound in the multichannel winding outermost Layer.It is connected by feedback winding with control circuit, so as to control the output of power supply, improves the output accuracy of transformer.
Preferably, polytetrafluoroethylene (PTFE) is provided between the primary side armature winding, secondary secondary windings, feedback winding are equal Insulating barrier.Teflon insulation performance is good, sets teflon insulation layer, prevents the breakdown between winding and arcing phenomena, Improve the security performance of transformer.
Preferably, it is characterised in that the primary side armature winding, secondary secondary windings, feedback winding are using three layers of paint Envelope curve coiling.Three layers of magnet wire insulation performance are good, prevent inside each winding, partial short-circuit between each winding, improve transformer Security performance.
Preferably, skeleton is provided with the wire casing for providing the multichannel winding coiling.Each winding is according to wire casing coiling, coiling side Just, it is not susceptible to offset, influences the output stability of transformer.
Preferably, the primary side armature winding, secondary secondary windings, feedback winding are provided with two pins, on the skeleton Provided with the metal stitch for pin winding.Primary side armature winding, secondary secondary windings, feedback winding set pin, pin Metal stitch is wound in, other assemblies can realize and electrically connect that installation is simple and convenient in metal stitch with corresponding winding.
The beneficial effects of the utility model:
1. the multiple-channel output transformer of switching power control system provided by the utility model, for low drain sense, output effect Rate is high.
2. the multiple-channel output transformer of switching power control system provided by the utility model, by using three layers of enamel-cover Line, teflon insulation plate is set, had a safety feature.
3. the multiple-channel output transformer of switching power control system provided by the utility model, connection is reliable, using drawing The cooperation of pin and metal stitch, installation are simple and convenient.
Brief description of the drawings
Fig. 1 is the multiple-channel output transformer device structure schematic diagram of switching power control system in embodiment 1;
Fig. 2 is the distributed architecture schematic diagram of multichannel winding in embodiment 1;
Fig. 3 is the distributed architecture schematic diagram of multichannel winding in embodiment 3;
Fig. 4 is the electronic schematic diagram of embodiment 3;
Fig. 5 is the distributed architecture schematic diagram of multichannel winding in embodiment 4;
Brief description of the drawings:10- skeletons;20- multichannel windings;201- primary side armature windings;2021- the first secondary secondary windings; 2022- the second secondary secondary windings;The secondary secondary windings of 2023- the 3rd;203- feedback windings;30- magnetic cores.
Embodiment
Understand for the ease of those skilled in the art, the utility model is done further in detail below in conjunction with accompanying drawing and embodiment Thin description:
Embodiment 1
As shown in figure 1, a kind of multiple-channel output transformer of switching power control system, including skeleton 10, magnetic core 30 and more Road winding 20, multichannel winding 20 include primary side armature winding 201 and secondary secondary windings, and the secondary secondary windings is two, Skeleton 10 is provided with hollow tubular mounting groove, and the magnetic core 30 is installed in the mounting groove, primary side armature winding 201, secondary time Level is wound in the mounting groove outer wall around component layers, and primary side armature winding 201 is uniformly divided into two layers of coiling and mounting groove outer wall.
In use, primary side armature winding 201 forms closed-loop path, primary side is primary by being connected with ac power input end Winding 201 produces alternating current, by inductive, makes also to produce electric current in each loaded secondary secondary windings of loading.It is former 201 two layers of coiling of side armature winding point, the degree of coupling of primary side armature winding 201 and secondary secondary windings is improved, reduces leakage inductance, So as to improve the delivery efficiency of transformer.
It is connected by feedback winding 203 with control circuit, so as to control the output of power supply, improves the output essence of transformer Degree.
As shown in Fig. 2 secondary secondary windings includes the first secondary secondary windings 2021 and the second secondary secondary windings 2022, Primary side armature winding 201 is uniformly divided into double-layer structure, the coiling by innermost layer, be close to mounting groove outer wall for first layer, around Start the coiling second layer after the half number of turn processed, isolated with teflon insulation layer;Two secondary secondary windings 2021,2022 are adopted Third layer is wound on the structure of Double-wire parallel wound, is isolated with teflon insulation plate;4th layer of coiling feedback winding 203.
Primary side armature winding 201 divides two layers of coiling, improves the coupling journey of primary side armature winding 201 and secondary secondary windings Degree, leakage inductance is reduced, so as to improve the delivery efficiency of transformer.
Preferably, secondary secondary windings is between two layers of primary side armature winding 201.
Preferably, secondary secondary windings is located at two layers of middle of primary side armature winding 201.
Preferably, magnetic core 30 is solid cylinder.
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 use three layers of enamel-covered wire coiling.
Preferably, skeleton 10 is provided with the wire casing for providing the coiling of multichannel winding 20..
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 are equipped with two pins, the bone Frame is provided with the metal stitch for pin winding.
Embodiment 2
The present embodiment structure is similar to Example 1, and difference is, the secondary secondary windings of embodiment is three groups, and Hierarchy is different.
Secondary secondary windings includes the first secondary secondary windings 2021, the second secondary secondary windings 2022, the 3rd secondary time Level winding 2023, primary side armature winding 201 are uniformly divided into double-layer structure, the coiling by innermost layer, are close to mounting groove outer wall For first layer, start the coiling second layer after the coiling half number of turn, isolated with teflon insulation layer;Feedback winding is wound in Three layers, isolated with teflon insulation plate;First secondary secondary windings 2021, the second secondary secondary windings 2022 use two-wire And around structure be wound on the 4th layer, with teflon insulation plate isolate;Last 3rd vice-side winding 2023 is around being made as the 5th Layer.
Preferably, secondary secondary windings is between two layers of primary side armature winding 201.
Preferably, secondary secondary windings is located at two layers of middle of primary side armature winding 201.
Preferably, magnetic core 30 is solid cylinder.
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 use three layers of enamel-covered wire coiling.
Preferably, skeleton 10 is provided with the wire casing for providing the coiling of multichannel winding 20.
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 are equipped with two pins, the bone Frame is provided with the metal stitch for pin winding.
Embodiment 3
The structure of the present embodiment is similar to Example 2, and difference is:The winding hierarchy of the present embodiment is different.
As shown in figure 3, secondary secondary windings include the first secondary secondary windings 2021, the second secondary secondary windings 2022, 3rd secondary secondary windings 2023, primary side armature winding 201 are uniformly divided into double-layer structure, the coiling by innermost layer, are close to pacify Tankage outer wall for first layer, isolated with teflon insulation layer;First secondary secondary windings 2021, the second secondary secondary around Group 2022 is wound on the second layer using the structure of Double-wire parallel wounds, and the 3rd secondary secondary windings 2023 is wound in the using single line from coil to coil Two layers, isolated with teflon insulation layer;The primary side armature winding 201 of remaining half is wound on third layer, uses polytetrafluoroethyl-ne Alkene insulator separation;Last feedback winding 203 is around being made as the 4th layer.
Secondary secondary windings improves the secondary secondary windings and two in intermediate layer between two layers of primary side armature winding 201 The coupling area of layer primary side armature winding 201, further reduces leakage inductance, improves the delivery efficiency of transformer.
Preferably, secondary secondary windings is located at two layers of middle of primary side armature winding 201.
Preferably, magnetic core 30 is solid cylinder.
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 use three layers of enamel-covered wire coiling.
Preferably, skeleton 10 is provided with the wire casing for providing the multichannel winding coiling 20.
Preferably, each winding is equipped with two pins, and the skeleton is provided with the metal needle for pin winding Pin.
As shown in figure 4, primary side armature winding 201 by being connected with ac power input end, forms closed-loop path, at the beginning of primary side Level winding 201 produces alternating current, by inductive, makes the loaded first secondary secondary windings 2021, second of loading secondary Electric current is also produced in side secondary windings 2022, the 3rd secondary secondary windings 2023 and feedback winding 203.
Embodiment 4
The structure of the present embodiment is similar to Example 3, and difference is:The secondary secondary windings of the present embodiment is two.
As shown in figure 5, secondary secondary windings includes the first secondary secondary windings 2021, the second secondary secondary windings 2022, Primary side armature winding 201 is uniformly divided into double-layer structure, the coiling by innermost layer, be close to mounting groove outer wall for first layer, use Teflon insulation layer is isolated;First secondary secondary windings 2021, the second secondary secondary windings 2022 are using Double-wire parallel wound Structure is wound on the second layer, is isolated with teflon insulation layer;The primary side armature winding 201 of remaining half is wound on the 3rd Layer, isolated with teflon insulation layer;Last feedback winding 203 is around being made as the 4th layer.
Secondary secondary windings improves the secondary secondary windings and two in intermediate layer between two layers of primary side armature winding 201 The coupling area of layer primary side armature winding 201, further reduces leakage inductance, improves the delivery efficiency of transformer.
Preferably, secondary secondary windings is located at two layers of middle of primary side armature winding 201.
Preferably, magnetic core 30 is solid cylinder.
Preferably, primary side armature winding 201, secondary secondary windings, feedback winding 203 use three layers of enamel-covered wire coiling.
Preferably, skeleton 10 is provided with the wire casing for providing the coiling of multichannel winding 20.
Preferably, each winding is equipped with two pins, and the skeleton is provided with the metal needle for pin winding Pin.
Described above is only preferred embodiment of the present utility model, and description is more detailed, but can not therefore be understood For the limitation to the utility model patent scope;It should be pointed out that for the utility model technical field, this reality is not being departed from On the premise of with new principle, the technological improvement and modification made to the utility model, these are improved and modification also should be regarded as this Within the protection domain of invention.

Claims (8)

1. a kind of multiple-channel output transformer of switching power control system, including skeleton, magnetic core and multichannel winding, its feature exist In the multichannel winding includes primary side armature winding and secondary secondary windings, and the secondary secondary windings is described no less than two Skeleton is provided with hollow tubular mounting groove, and the magnetic core is installed in the mounting groove, and the primary side armature winding, secondary are secondary The mounting groove outer wall is wound in around component layers, the primary side armature winding is uniformly divided into two layers and is wound in mounting groove outer wall;
The secondary secondary windings individual layer is wound in outside the magnetic core, and the secondary secondary windings is located at two layers of primary side armature winding Between;The secondary secondary windings number is even number, and the winding structure of the secondary secondary windings is Double-wire parallel wound structure.
2. multiple-channel output transformer according to claim 1, it is characterised in that the secondary secondary windings is former located at two layers Side armature winding middle.
3. multiple-channel output transformer according to claim 1, it is characterised in that the magnetic core is solid cylinder.
4. according to the multiple-channel output transformer described in claim 1-3 any one claims, it is characterised in that the multichannel Winding also includes feedback winding, and the feedback winding is wound in the multichannel winding outermost layer.
5. multiple-channel output transformer according to claim 4, it is characterised in that the primary side armature winding, secondary are secondary Teflon insulation layer is provided between winding, feedback winding are equal.
6. multiple-channel output transformer according to claim 1, it is characterised in that the primary side armature winding, secondary are secondary Winding, feedback winding use three layers of enamel-covered wire coiling.
7. multiple-channel output transformer according to claim 1, it is characterised in that the skeleton be provided with provide the multichannel around The wire casing of group coiling.
8. multiple-channel output transformer according to claim 1, it is characterised in that the primary side armature winding, secondary are secondary Winding and feedback winding are equipped with two pins, and the skeleton is provided with the metal stitch for pin winding.
CN201720055126.8U 2017-01-18 2017-01-18 A kind of multiple-channel output transformer of switching power control system Expired - Fee Related CN206931469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720055126.8U CN206931469U (en) 2017-01-18 2017-01-18 A kind of multiple-channel output transformer of switching power control system

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Application Number Priority Date Filing Date Title
CN201720055126.8U CN206931469U (en) 2017-01-18 2017-01-18 A kind of multiple-channel output transformer of switching power control system

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993818A (en) * 2018-01-09 2018-05-04 江苏海湾电气科技有限公司 Audio-frequency transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107993818A (en) * 2018-01-09 2018-05-04 江苏海湾电气科技有限公司 Audio-frequency transformer
CN107993818B (en) * 2018-01-09 2019-01-11 江苏海湾电气科技有限公司 Audio-frequency transformer

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Granted publication date: 20180126

Termination date: 20200118