CN208507419U - Copper foil winding switching mode power supply transformer - Google Patents
Copper foil winding switching mode power supply transformer Download PDFInfo
- Publication number
- CN208507419U CN208507419U CN201820356568.0U CN201820356568U CN208507419U CN 208507419 U CN208507419 U CN 208507419U CN 201820356568 U CN201820356568 U CN 201820356568U CN 208507419 U CN208507419 U CN 208507419U
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- copper foil
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- power supply
- secondary coil
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Abstract
The utility model discloses a kind of copper foil winding switching mode power supply transformers.It includes two panels annular copper foil and the connection sheet that is connected between two panels annular copper foil, annular copper foil described in two panels connect the cavity to be formed for disposing primary and secondary coil with connection sheet, primary and secondary coil is mounted in cavity, one is respectively arranged on two panels annular copper foil for the extraction notch that primary and secondary coil is drawn, two extraction notches are staggeredly arranged.After above-mentioned structure, thus it no longer needs to weld centre tap, avoid open circuit problem, so that the reliability of final products performance is very high, efficiently solve the problems, such as that Switching Power Supply high-frequency copper foil winding transformer primary and secondary winding coupled and copper foil series connection tap soldering reliability problem, structure design advantages of simple, be lost small, fabricate high-efficient, cost of labor substantially reduces.
Description
Technical field
The utility model relates to a kind of switching mode power supply transformer, specifically a kind of copper foil winding Switching Power Supply transformation
Device.
Background technique
It is continuously improved with switching mode power supply transformer frequency, high frequency transformer is increasingly miniaturized flattening, considers frequency
The influence of high skin effect, high frequency transformer more use copper foil to replace enameled wire.Prior art high frequency Switching Power Supply becomes
Copper foil winding passes through weldering on transformer support frame or using pre-processed copper foil a piece of (1 circle) superposition in depressor
Centre tap is connect to be cascaded；The first interstage coupling difference leakage inductance of transformer of copper foil winding is big, loss is high, low efficiency, superposition
Winding high labor cost together, while centre tap is not high by the reliability of welding series connection together, transformer overcurrent temperature
It will lead to open circuit after height or when centre tap is dealt with improperly.
Summary of the invention
The technical problem to be solved by the present invention is to provide one kind can structure be simple, manufacturing cost is low and uses reliable
The high copper foil winding switching mode power supply transformer of property.
In order to solve the above-mentioned technical problem, the copper foil winding switching mode power supply transformer of the utility model, including two panels annular
Copper foil and the connection sheet being connected between two panels annular copper foil, annular copper foil described in two panels connect to be formed with connection sheet
For disposing the cavity of primary and secondary coil, it is mounted with primary and secondary coil in cavity, is respectively arranged with one on two panels annular copper foil
A extraction notch drawn for primary and secondary coil, two extraction notches are staggeredly arranged.
The Extendible flake for being located at and respectively drawing notch side is provided on copper foil described in two panels.
The inner circumferential edge of annular copper foil described in two panels is provided with for carrying out installation positioning to primary and secondary coil
Retention bead.
It after above-mentioned structure, thus no longer needs to weld centre tap, avoids open circuit problem, so that final products
The reliability of performance is very high, efficiently solve the problems, such as Switching Power Supply high-frequency copper foil winding transformer primary and secondary winding coupled and
Copper foil series connection tap soldering reliability problem, structure design advantages of simple, and small, high-efficient, the cost of labor of processing and manufacturing is lost
It substantially reduces.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model copper foil winding switching mode power supply transformer.
Specific embodiment
With reference to the accompanying drawings and detailed description, the copper foil winding switching mode power supply transformer of the utility model is made into one
Step is described in detail.
As shown, the copper foil winding switching mode power supply transformer of the utility model, including two panels annular copper foil 1 and company
The connection sheet 2 between two panels annular copper foil is connect, as seen from the figure, connection sheet is one piece of square being wholely set with annular copper foil
The sheet body of shape, two panels annular copper foil connect with connection sheet after cross sectional shape be U-shaped structure, two panels annular copper foil with connect
Piece connects the cavity 3 to be formed for disposing primary and secondary coil, is mounted with primary and secondary coil in cavity 3, on two panels annular copper foil 1
One is respectively arranged with for the extraction notch 4 that primary and secondary coil is drawn, two extraction notches 4 are staggeredly arranged, that is to say, that its
In one draw notch and be located at the left side of connection sheet, another extraction notch is necessarily located at the right side of connection sheet,
Further, the Extendible flake 5 for being located at and respectively drawing notch side is provided on described two panels copper foil 1,
That is it is to form fracture between Extendible flake and connection sheet that it, which draws notch, the inner circumferential edge of two panels annular copper foil 1 is set
It is equipped with the retention bead for carrying out installation positioning to primary and secondary coil.
Claims (3)
1. a kind of copper foil winding switching mode power supply transformer, it is characterised in that: including two panels annular copper foil (1) and be connected to two
Connection sheet (2) between piece annular copper foil, annular copper foil described in two panels connect to be formed for disposing primary and secondary with connection sheet
The cavity (3) of coil, the cavity (3) is interior to be mounted with primary and secondary coil, is respectively arranged on annular copper foil (1) described in two panels
One extraction notch (4) drawn for primary and secondary coil, two extraction notches (4) are staggeredly arranged.
2. copper foil winding switching mode power supply transformer described in accordance with the claim 1, it is characterised in that: copper foil described in two panels (1)
On be provided be located at respectively draw notch side Extendible flake (5).
3. copper foil winding switching mode power supply transformer according to claim 1 or 2, it is characterised in that: annular copper described in two panels
The inner circumferential edge of paillon (1) is provided with the retention bead for carrying out installation positioning to primary and secondary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356568.0U CN208507419U (en) | 2018-03-16 | 2018-03-16 | Copper foil winding switching mode power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356568.0U CN208507419U (en) | 2018-03-16 | 2018-03-16 | Copper foil winding switching mode power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507419U true CN208507419U (en) | 2019-02-15 |
Family
ID=65295168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820356568.0U Active CN208507419U (en) | 2018-03-16 | 2018-03-16 | Copper foil winding switching mode power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507419U (en) |
-
2018
- 2018-03-16 CN CN201820356568.0U patent/CN208507419U/en active Active
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