CN207602366U - Switching power supply filter transformer - Google Patents
Switching power supply filter transformer Download PDFInfo
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- CN207602366U CN207602366U CN201721677114.5U CN201721677114U CN207602366U CN 207602366 U CN207602366 U CN 207602366U CN 201721677114 U CN201721677114 U CN 201721677114U CN 207602366 U CN207602366 U CN 207602366U
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- transformer
- magnetic core
- filter
- wave filter
- winding
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Abstract
The utility model is related to switching mode power supply transformer fields, for being used separately transformer and wave filter leads to that entire Switching Power Supply volume is larger and cost is higher, and fit the problem of not worked using caused filtering, propose a kind of Switching Power Supply filter transformer, including skeleton, transformer winding and magnetic core of transformer, further include Filter Winding and wave filter magnetic core, the Filter Winding is located at the outside of magnetic core of transformer, the wave filter magnetic core passes through Filter Winding, the skeleton is integral type coil frame, the magnetic core of transformer and wave filter magnetic core are located on integral type coil frame.The magnetic core of transformer is connected as one with wave filter magnetic core can form two zero distances noiseless closed magnetic circuit independently of each other in EEU shapes, wave filter magnetic core multiplexing magnetic core of transformer can form two zero distances and mutually include noiseless closed magnetic circuit, it can so be formed with the low easily manufactured miniaturization complex device of dual function expense, suitable for switching mode power supply transformer.
Description
Technical field
The utility model is related to switching mode power supply transformer fields, more particularly to Switching Power Supply filter transformer.
Background technology
Switching mode power supply transformer changes for security isolation, power transmission and conversion and Current Voltage, output current filtering
The wave smothing filtering that device is used for, both devices are the magnetic core parts that two kinds of different function independently use in Switching Power Supply, are being opened
Output current wave filter is usually configured in powered-down source to connect with transformer, causes entire Switching Power Supply volume larger, and cost compared with
It is high.
If directly increase a Filter Winding in transformer winding as output current wave filter and Switching Power Supply transformation
Device uses simultaneously, as shown in Figure 1, wave filter magnetic core 4 is multiplexed magnetic core of transformer 2, transformer winding 1 is wound on integral type line packet bone
On frame 12, wave filter winding 3 is directly wound on the outside of transformer winding 1, is set between wave filter winding 3 and transformer winding 1
Interlayer insulating layer 11 is equipped with, the output power of transformer can't significantly increase at this time, and device power capacity is enough, and Switching Power Supply becomes
Depressor can work normally, but current filter cannot be operated under good characteristic states, because in same magnetic field, by electromagnetism
Principle of induction understands that when primary winding flows through a certain electric current other windings are bound to induce the electric current electricity to match
Pressure, such Filter Winding both ends, which can also generate higher voltage difference, can not then accomplish to filter, and good wave filter winding both ends
Pressure difference is very small almost to ignore.
In this way, research and development have the complex device of transfilter dual function, key must be set up two respectively solely
It is vertical, it is designed and developed, that is, transformer works in a closed magnetic circuit without the closed magnetic circuit interfered with each other, wave filter is another
A closed magnetic circuit work.Above-mentioned case failure is exactly that two kinds of magnetic core parts use shared magnetic circuit according to reason, causes electromagnetism phase
Mutually interference, it is impossible to caused by normal work.
Utility model content
Technical problem to be solved in the utility model is：Overcome and be used separately transformer in the prior art and wave filter is led
Cause that entire Switching Power Supply volume is larger and cost is higher, and fit the problem of not worked using caused filtering, it is proposed that one
Switching mode power supply transformer of the kind with filter function.
The utility model solves above-mentioned technical problem, the technical solution adopted is that：
Switching Power Supply filter transformer including skeleton, transformer winding and magnetic core of transformer, further includes Filter Winding and filter
Wave device magnetic core, the Filter Winding are located at the outside of magnetic core of transformer, and the wave filter magnetic core passes through Filter Winding, the skeleton
For integral type coil frame, the magnetic core of transformer and wave filter magnetic core are located on integral type coil frame.
Further, the removable transformer framework and use being divided into for coiling transformer winding of the integral type coil frame
Carry out the wave filter skeleton of coiling wave filter winding.
Further, the magnetic core of transformer is connected as one with wave filter magnetic core, and the center of the magnetic core of transformer is led
Magnet one is set in I-shaped transformer framework, and the Effects of Central Magnetic Conductor two of the wave filter magnetic core is set to I-shaped filter
In wave device skeleton, the one of the side of the both sides magnetizer two of the wave filter magnetic core and the two side columns magnetizer one of magnetic core of transformer
Side is connected.
Specifically, the wave filter magnetic core is one kind in EI or EE shapes.
In order to save core material, it is preferable that the magnetic core of transformer is connected as one with wave filter magnetic core, the transformation
The Effects of Central Magnetic Conductor one of device magnetic core is set in I-shaped transformer framework, and the wave filter magnetic core is U-shaped, being open one
End is set in I-shaped wave filter skeleton, and the other end is connected with the side of the two side columns magnetizer one of magnetic core of transformer.
Preferably, the wave filter magnetic core multiplexing magnetic core of transformer, the transformer winding are wound on integral type line packet bone
On frame, one outside of two side columns magnetizer of the magnetic core of transformer is provided with interlayer insulating layer, and the Filter Winding is wound on both sides
On column magnetizer one, interlayer insulating layer is provided on the outside of the Filter Winding.
Specifically, the magnetic core of transformer is one kind in EI or EE shapes.
Preferably, the integral type coil frame is plastic cement material.
The beneficial effects of the utility model are：
1) the common magnetic device for only providing single use function is fabricated to the miniaturization complex with dual function
Device；
2) it is designed by the glitch-free double magnetic circuit of zero distance, solves that double-function device shares magnetic circuit or to intersect magnetic circuit mutual
Electromagnetic interference is led to the problem of and cisco unity malfunction, for miniaturization complex devices switch power filter transformer normal work
Provide theories integration；
3) by the design of detachable assemblnig integral framework and magnetic core, non-concentric 2 coaxial line packets are solved
Skeleton respectively must be molded individually, and the process difficulties of respective coiling greatly reduce die cost and skeleton cost；
4) pass through the design of winding support frame so that switching mode power supply transformer line packet and filter line packet practical shared one
A winding support frame and same secondary magnetic core, greatly reduce die cost and skeleton cost；
5) production efficiency is greatly improved, produces a Switching Power Supply filter transformer, is exactly to produce a same switch
Only increase on the basis of power transformer mostly around the working hour of a Filter Winding, individually a filtering is made again so as to save
A large amount of working hours caused by the other process that device is spent.That is a Switching Power Supply filter transformer and production one are produced
Only the working hour of similar switching mode power supply transformer is almost suitable, hence it is evident that reduces manufacture cost；
6) product material cost is significantly reduced, hence it is evident that improve the market competitiveness.One Switching Power Supply filtering of manufacture becomes
The skeleton and magnetic core of one switching mode power supply transformer purchase of the skeleton of depressor purchase and magnetic core and manufacture are almost suitable；
7) an individual Switching Power Supply filter transformer is than the volume of a switching mode power supply transformer and a wave filter
The sum of it is significantly small.
Description of the drawings
Front section views of the Fig. 1 for the case that fails in the utility model background technology；
Fig. 2 is the front section view of the utility model embodiment 1；
Fig. 3 is that the magnetic circuit of the utility model embodiment 1 moves towards figure；
Fig. 4 is the front section view of the utility model embodiment 2；
Fig. 5 is that the magnetic circuit of the utility model embodiment 2 moves towards figure；
Fig. 6 is the front section view of the utility model embodiment 3；
Fig. 7 is that the magnetic circuit of the utility model embodiment 3 moves towards figure；
Wherein, 1 is transformer winding, and 2 be magnetic core of transformer, and 3 be Filter Winding, and 4 be wave filter magnetic core, and 5 be transformer
Skeleton, 6 be wave filter skeleton, magnetizer one centered on 7, and 8 be two side columns magnetizer one, and magnetizer two centered on 9,10 be both sides
Magnetizer two, 11 be interlayer insulating layer, and 12 be integral type coil frame, and 13 be transformer closed magnetic circuit, and 14 be wave filter closed magnetic
Road.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and embodiments.
The utility model is directed to Switching Power Supply filter transformer, as shown in Fig. 2, Fig. 4 and Fig. 6, including skeleton, transformation
Device winding 1 and magnetic core of transformer 2 including skeleton, transformer winding 1 and magnetic core of transformer 2, further include Filter Winding 3 and filtering
Device magnetic core 4, the Filter Winding 3 are located at the outside of magnetic core of transformer 2, and the wave filter magnetic core 4 passes through Filter Winding 3, described
Skeleton is integral type coil frame 12, and the magnetic core of transformer 2 and wave filter magnetic core 4 are located on integral type coil frame 12.Such as
This can form integral type magnetic core and integral type coil frame, and transformer works in a closed magnetic circuit, and wave filter is at another
Closed magnetic circuit works.Wherein, the integral type coil frame 12 is plastic cement material.
Embodiment 1
As shown in Fig. 2, the Switching Power Supply filter transformer in the present embodiment, the integral type coil frame 12 is removable to be divided into
Transformer framework 5 for coiling transformer winding 1 and the wave filter skeleton 6 for coiling wave filter winding 3, the transformer
Magnetic core 2 is connected as one with wave filter magnetic core 4, and the Effects of Central Magnetic Conductor 1 of the magnetic core of transformer 2 is set to I-shaped transformation
In device skeleton 5, the Effects of Central Magnetic Conductor 29 of the wave filter magnetic core 4 is set in I-shaped wave filter skeleton 6, the filtering
The side of the both sides magnetizer 2 10 of device magnetic core 4 is connected with the side of the two side columns magnetizer 1 of magnetic core of transformer 2.Institute in Fig. 2
Show that magnetic core of transformer and wave filter magnetic core are EE shapes, magnetic core of transformer may be EI shapes in fact, wave filter magnetic core
It can be EI shapes, not influence the realization of function.
The operation principle of the present embodiment is：When the armature winding in transformer winding connects electricity, then the transformer that can be formed closes
Close magnetic circuit 13 and wave filter closed magnetic circuit 14 as described in Figure 3, the two forms two zero distances noiseless closed magnetic independently of each other
The function of road, such transformer and wave filter can work normally.
Embodiment 2
As shown in figure 4, the Switching Power Supply filter transformer in the present embodiment, the integral type coil frame 12 is removable to be divided into
Transformer framework 5 for coiling transformer winding 1 and the wave filter skeleton 6 for coiling wave filter winding 3, the transformer
Magnetic core 2 is connected as one with wave filter magnetic core 4, and the Effects of Central Magnetic Conductor 1 of the magnetic core of transformer 2 is set to I-shaped transformation
In device skeleton 5, the wave filter magnetic core 4 is U-shaped, and one end of opening is set in I-shaped wave filter skeleton 6, the other end
It is connected with the side of the two side columns magnetizer 1 of magnetic core of transformer 2.Magnetic core of transformer shown in Fig. 4 is EE shapes, in fact transformation
Device magnetic core can be EI shapes, not influence the realization of function.
The operation principle of the present embodiment is：When the armature winding in transformer winding connects electricity, then the transformer that can be formed closes
Close magnetic circuit 13 and wave filter closed magnetic circuit 14 as described in Figure 5, the two forms two zero distances noiseless closed magnetic independently of each other
The function of road, such transformer and wave filter can work normally.
Embodiment 3
As shown in fig. 6, the wave filter magnetic core 4 is multiplexed magnetic core of transformer 2, the transformer winding 1 is wound on integral type
On coil frame 12, one 8 outside of the two side columns magnetizer of the magnetic core of transformer 2 is provided with interlayer insulating layer 11, the filtering around
Group 3 is wound on two side columns magnetizer 1, and the outside of the Filter Winding 3 is provided with interlayer insulating layer 11.Transformation shown in Fig. 6
Device magnetic core is EI shapes, and the outside of the Filter Winding 3 is provided with interlayer insulating layer 11, and magnetic core of transformer may be EE shapes in fact
Shape does not influence the realization of function.
The operation principle of the present embodiment is：When the armature winding in transformer winding connects electricity, then the transformer that can be formed closes
Close magnetic circuit 13 and wave filter closed magnetic circuit 14 as described in Figure 7, the two forms two zero distances and mutually includes noiseless closed magnetic
The function of road, such transformer and wave filter can work normally.
Claims (8)
1. Switching Power Supply filter transformer, including skeleton, transformer winding (1) and magnetic core of transformer (2), which is characterized in that also
Including Filter Winding (3) and wave filter magnetic core (4), the Filter Winding (3) is positioned at the outside of magnetic core of transformer (2), the filter
For wave device magnetic core (4) across Filter Winding (3), the skeleton is integral type coil frame (12), the magnetic core of transformer (2) and filter
Wave device magnetic core (4) is on integral type coil frame (12).
2. Switching Power Supply filter transformer as described in claim 1, which is characterized in that the integral type coil frame (12) can
It is split as the transformer framework (5) for coiling transformer winding (1) and the wave filter skeleton for coiling wave filter winding (3)
(6)。
3. Switching Power Supply filter transformer as claimed in claim 2, which is characterized in that the magnetic core of transformer (2) and filtering
Device magnetic core (4) is connected as one, and the Effects of Central Magnetic Conductor one (7) of the magnetic core of transformer (2) is set to I-shaped transformer bone
In frame (5), the Effects of Central Magnetic Conductor two (9) of the wave filter magnetic core (4) is set in I-shaped wave filter skeleton (6), described
The side of the both sides magnetizer two (10) of wave filter magnetic core (4) and the side of the two side columns magnetizer one (8) of magnetic core of transformer (2)
It is connected.
4. Switching Power Supply filter transformer as claimed in claim 3, which is characterized in that the wave filter magnetic core (4) for EI or
One kind in EE shapes.
5. Switching Power Supply filter transformer as claimed in claim 2, which is characterized in that the magnetic core of transformer (2) and filtering
Device magnetic core (4) is connected as one, and the Effects of Central Magnetic Conductor one (7) of the magnetic core of transformer (2) is set to I-shaped transformer bone
In frame (5), the wave filter magnetic core (4) is U-shaped, and one end of opening is set in I-shaped wave filter skeleton (6), another
End is connected with the side of the two side columns magnetizer one (8) of magnetic core of transformer (2).
6. Switching Power Supply filter transformer as described in claim 1, which is characterized in that wave filter magnetic core (4) multiplexing becomes
Depressor magnetic core (2), the transformer winding (1) are wound on integral type coil frame (12), and the two of the magnetic core of transformer (2)
Interlayer insulating layer (11) is provided on the outside of lateral column magnetizer one (8), the Filter Winding (3) is wound on two side columns magnetizer one (8)
On, it is provided with interlayer insulating layer (11) on the outside of the Filter Winding (3).
7. the Switching Power Supply filter transformer as described in claim 3 or 4 or 5 or 6, which is characterized in that the magnetic core of transformer
(2) it is one kind in EI or EE shapes.
8. the Switching Power Supply filter transformer as described in claims 1 or 2 or 3 or 4 or 5 or 6, which is characterized in that the one
Formula coil frame (12) is plastic cement material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677114.5U CN207602366U (en) | 2017-12-05 | 2017-12-05 | Switching power supply filter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677114.5U CN207602366U (en) | 2017-12-05 | 2017-12-05 | Switching power supply filter transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602366U true CN207602366U (en) | 2018-07-10 |
Family
ID=62761770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677114.5U Active CN207602366U (en) | 2017-12-05 | 2017-12-05 | Switching power supply filter transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602366U (en) |
-
2017
- 2017-12-05 CN CN201721677114.5U patent/CN207602366U/en active Active
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