CN207558582U - A kind of transformer and a kind of Switching Power Supply - Google Patents
A kind of transformer and a kind of Switching Power Supply Download PDFInfo
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- CN207558582U CN207558582U CN201721732441.6U CN201721732441U CN207558582U CN 207558582 U CN207558582 U CN 207558582U CN 201721732441 U CN201721732441 U CN 201721732441U CN 207558582 U CN207558582 U CN 207558582U
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Abstract
The utility model discloses a kind of transformer, the confession electric winding of the transformer is covered between armature winding and secondary windings, and the ground wire of its ground terminal and power generating facilities and power grids connects.So, when transformer works normally, when armature winding carries out undesirable mutual electromagnetic inductance generation interlayer economize on electricity appearance with secondary windings, economize on electricity is held then can be by bypassing over the ground for electric winding, hold so as to achieve the purpose that shield the economize on electricity between armature winding and secondary windings, transformer i.e. provided by the utility model can utilize the confession electric winding of the ground wire of ground terminal and power generating facilities and power grids connection to substitute shielded layer winding of the prior art, so as under the premise of the EMC of itself is ensured, winding is reduced to simplify self structure, and then simplify the manufacture craft of itself to improve producing efficiency and reduce cost of manufacture.In addition, the invention also discloses a kind of Switching Power Supply, self structure can be simplified in the case where ensureing the EMC of itself, so as to improve producing efficiency and reduce cost of manufacture.
Description
Technical field
The utility model is related to appliance field, more particularly to a kind of transformer and a kind of Switching Power Supply.
Background technology
For the Switching Power Supply with converter topology, the Electro Magnetic Compatibility (EMC) of transformer is designed to entire
The EMC levels of Switching Power Supply are affected.Transformer is in normal work, because of the electromagnetic field generated when armature winding flows through electric current
Undesirable mutual electromagnetic inductance can be carried out with secondary windings, and so that generating economize on electricity between armature winding and secondary windings under the action of undesirable mutual electromagnetic inductance
Hold, influence the EMC of transformer.
At present, in order to ensure the EMC of transformer, the technological means usually used is the armature winding and secondary in transformer
Increasing by one layer of shielded layer winding between winding, connect one end of shielded layer winding and the ground wire of power generating facilities and power grids, the other end is hanging,
To shield the appearance of the economize on electricity between armature winding and secondary windings, so as to eliminate interference of the economize on electricity appearance to the EMC of transformer.Increase
The winding sequence of the transformer of shielded layer is that armature winding-shielded layer winding-secondary windings-supplies electric winding, in this way, not only increasing
The production process of transformer so that complex manufacturing technology increases cost of manufacture, and due to the winding wire of secondary windings
For three layer insulation wire, the winding wire of armature winding, shielded layer winding and confession electric winding is enameled wire, so transformer is had to
Using sandwich winding, can cause can only the automatic coil winding machine of single line footpath coiling can not be disposable in non-stop-machine state again
Around complete all enameled wires, it is difficult to realize the full-automatic coiling of transformer, further reduced the producing efficiency of transformer.
Therefore, how in the case of the EMC for ensureing transformer, simplify the manufacture craft of transformer to improve producing efficiency
It is the current technical issues that need to address of those skilled in the art with cost of manufacture is reduced.
Utility model content
The purpose of this utility model is to provide a kind of transformer and a kind of Switching Power Supply, can ensure the EMC's of itself
In the case of, simplify the manufacture craft of itself to improve producing efficiency and reduce cost of manufacture.
In order to solve the above-mentioned technical problem, a kind of transformer provided by the utility model, including：Armature winding, power supply around
Group and secondary windings, the winding wire for electric winding are around in the entire layer between the armature winding and the secondary windings
Between, and the ground wire connection of the ground terminal and power generating facilities and power grids for electric winding.
Preferably, the winding wire for electric winding is equably dredged and is around between the armature winding and the secondary windings
Entire interlayer.
Preferably, the skeleton of the transformer is specially thermal hardening plastics skeleton.
Preferably, the thermal hardening plastics skeleton is specially phenol-formaldehyde resin matrix.
Preferably, the casing of the transformer is specially that not the actor playing a supporting role manages iron.
Preferably, the iron not the actor playing a supporting role pipe include the first iron not the actor playing a supporting role pipe and the second iron not the actor playing a supporting role pipe, first iron is not
The length of actor playing a supporting role's pipe is at least 10mm, and the length of second iron not actor playing a supporting role's pipe is at least 40mm；
Wherein, not actor playing a supporting role's pipe is at the initiating terminal of the secondary windings for first iron, and not the actor playing a supporting role manages second iron
At the end of the secondary windings.
In order to solve the above-mentioned technical problem, a kind of Switching Power Supply that the utility model also provides, including any of the above-described kind of change
Depressor.
In terms of existing technologies, transformer provided by the utility model includes：Armature winding, for electric winding and secondary
Winding is around in entire interlayer between armature winding and secondary windings, and for the ground terminal of electric winding for the winding wire of electric winding
It is connect with the ground wire of power generating facilities and power grids.It can be seen that the confession electric winding of transformer provided by the utility model is covered in armature winding
Between secondary windings, and the ground wire of its ground terminal and power generating facilities and power grids connects.In this way, when transformer works normally, armature winding
When carrying out undesirable mutual electromagnetic inductance with secondary windings and generating interlayer economize on electricity and hold, economize on electricity hold then can by being bypassed over the ground for electric winding, from
And being up to the purpose that the economize on electricity between shielding armature winding and secondary windings is held, i.e., transformer provided by the utility model being capable of profit
Shielded layer winding of the prior art is substituted with the confession electric winding that the ground wire of ground terminal and power generating facilities and power grids connects, so as to protect
Under the premise of the EMC for demonstrate,proving itself, winding is reduced to simplify self structure, and then is simplified the manufacture craft of itself and made effect to improve
Rate and reduction cost of manufacture.In addition, the utility model additionally provides a kind of Switching Power Supply, because it includes above-mentioned transformer, so
Self structure can be simplified in the case where ensureing the EMC of itself, so as to improve producing efficiency and reduce cost of manufacture.
Description of the drawings
In order to illustrate more clearly of the utility model embodiment, letter will be done to attached drawing needed in the embodiment below
Single introduction, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, general for this field
For logical technical staff, without creative efforts, other accompanying drawings are can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram of the winding figure layer of a kind of transformer that the utility model embodiment provides；
Fig. 2 is the structure diagram of a kind of Switching Power Supply that the utility model embodiment provides；
Fig. 3 is the circuit diagram of the transformer in a kind of Switching Power Supply that the utility model embodiment provides；
Fig. 4 is a kind of conduction test figure that conduction test is carried out to Switching Power Supply that the utility model embodiment provides；
Fig. 5 is a kind of radiation test chart that radiation test is carried out to Switching Power Supply that the utility model embodiment provides.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art under the premise of not making the creative labor,
All other embodiments obtained belong to scope of protection of the utility model.
The purpose of this utility model is to provide a kind of transformer and a kind of Switching Power Supply, can ensure the EMC's of itself
In the case of, simplify the manufacture craft of itself to improve producing efficiency and reduce cost of manufacture.In order to make those skilled in the art
Technical solutions of the utility model are better understood from, the utility model are made with reference to the accompanying drawings and detailed description further
It is described in detail.
Fig. 1 is the schematic diagram of the winding figure layer of a kind of transformer that the utility model embodiment provides.As shown in Figure 1, this
The transformer that embodiment provides includes：Armature winding 10, for electric winding 11 and secondary windings 12, for electric winding 11 winding wire around
Entire interlayer between armature winding 10 and secondary windings 12, and the ground terminal for electric winding 11 and the ground wire company of power generating facilities and power grids
It connects.
The winding included the present embodiment provides transformer only has armature winding 10, for electric winding 11 and secondary windings 12, and
Any other winding need not be increased, structure is simpler, and manufacture craft can also simplify therewith.Also, due to this transformer
Confession electric winding 11 be distributed between armature winding 10 and secondary windings 12, the connection of the ground wires of ground terminal and power generating facilities and power grids, institute
With if using transformer provided in this embodiment, then when between the armature winding 10 of transformer and secondary windings 12 because of electricity
Magnetic mutual inductance and when generating economize on electricity and holding, economize on electricity is held can then be bypassed by confession the electric winding 11 that ground terminal is grounded, thus can not be right
The EMC of transformer is interfered.I.e. for electric winding 11 other than there is power supply, also with transformer of the prior art
Shielded layer winding effect, the economize on electricity generated due to undesirable mutual electromagnetic inductance between armature winding 10 and secondary windings 12 can be shielded
Hold.Therefore, transformer provided by the utility model can not only be made using simpler manufacture craft, moreover, and this
Simultaneously, additionally it is possible to keep preferable EMC.
In addition, although the winding wire of secondary windings 12 is three layer insulation wire, since the winding sequence of this transformer is
Armature winding 10- supplies electric winding 11- secondary windings 12, and armature winding 10 and the winding wire of confession electric winding 11 are enameled wire,
So transformer is without using sandwich winding, can directly using can only the automatic coil winding machine of single line footpath coiling do not stopping
The difficulty for the full-automatic coiling for realizing transformer disposably is reduced around complete all enameled wires in the state of machine, so as to
Enough further improve the producing efficiency of transformer.
It should be noted that the winding sequence for the transformer that the utility model embodiment provides is armature winding 10- power supplies
When it makes, armature winding 10 and secondary windings 12 should be distributed in for the winding wire of electric winding 11 for winding 11- secondary windings 12
Between entire interlayer, also, it is to be understood that, for electric winding 11 winding wire armature winding 10 and secondary windings 12 it
Between entire interlayer distribution it is uniform, generated between armature winding 10 and secondary windings 12 economize on electricity hold shield effectiveness
Better.
Be preferably carried out mode as one kind, for electric winding 11 winding wire equably dredge be around in armature winding 10 with it is secondary
Entire interlayer between winding 12.Using mode is originally preferably carried out, can make power supply winding 11 be uniformly covered on it is primary around
Entire interlayer between group 10 and secondary windings 12, can will produce for electric winding 11 between armature winding 10 and secondary windings 12
The shield effectiveness that raw economize on electricity is held reaches a preferable state, so as to which transformer be enable to keep preferable EMC.
In order to the skeleton for enabling transformer bears welding temperature and it is indeformable, be preferably carried out mode as one kind, become
The skeleton of depressor is specially thermal hardening plastics skeleton.Certainly, as long as meet demand, the skeleton of transformer can also be by other symbols
The skeleton of actual demand is closed, the utility model does not limit.In addition, when selecting specific transformer framework, it should be according to applicable
Safety standard required by creepage distance selected, the utility model repeats no more.
Mode is preferably carried out as one kind, and the thermal hardening plastics skeleton in above-mentioned preferred embodiment is specially phenolic aldehyde tree
Fat skeleton.It is, of course, also possible to be other thermal hardening plastics skeletons in addition to phenol-formaldehyde resin matrix, such as epoxy backbone, this reality
It is not limited with the novel concrete type to thermal hardening plastics skeleton.
The insulating sleeve of transformer is used to carry out the initiating terminal of winding in barrier wall structure transformer and end lead exhausted
Edge.Casing will not only meet the thickness requirement for strengthening insulation, should also have anti-hot function simultaneously, in welding transformer lead wire to bone
At temperature required by frame pin, casing cannot melt, and therefore, mode, the casing tool of transformer are preferably carried out as one kind
For iron, not the actor playing a supporting role manages body.Certainly, not actor playing a supporting role's pipe is only that one kind is preferably carried out mode to the casing selection iron of transformer, is not only
A kind of one embodiment, for example, the casing of transformer can also select polyolefin thermal shrinkable sleeve pipe etc., the utility model does not limit
It is fixed.
In order to further enhance the insulating properties of transformer, mode is preferably carried out as one kind, not actor playing a supporting role's pipe includes the to iron
Not not the actor playing a supporting role manages one iron for actor playing a supporting role's pipe and the second iron, the length of the first iron not actor playing a supporting role's pipe is at least 10mm, the second iron not actor playing a supporting role's pipe
Length is at least 40mm；Wherein, not actor playing a supporting role's pipe is at the initiating terminal of secondary windings 12 for the first iron, and not actor playing a supporting role's pipe is located at the second iron
At the end of secondary windings 12.
The utility model additionally provides a kind of Switching Power Supply for including above-mentioned transformer, due to the implementation of switching power supply parts
The embodiment of example and transformer portion mutually correlates, therefore the embodiment of switching power supply parts may refer to the reality of transformer portion
The description of example is applied, for identical part, the utility model repeats no more.
Fig. 2 is the structure diagram of a kind of Switching Power Supply that the utility model embodiment provides.As shown in Fig. 2, this switch
Power supply 20 includes the described transformer 201 of any of the above-described embodiment.
By the transformer that Switching Power Supply provided in this embodiment is provided with any of the above-described embodiment, so this implementation
The Switching Power Supply that example provides can simplify the manufacture craft of itself to improve producing efficiency in the case where ensureing the EMC of itself
With reduction cost of manufacture.
Following for those skilled in the art is made to be better understood from Switching Power Supply provided by the utility model, with reference to
Attached drawing is carried out specifically for including using EE13 5+2PIN skeletons, the iron not Switching Power Supply of the transformer of actor playing a supporting role's pipe
It is bright.
Fig. 3 is the circuit diagram of the transformer in a kind of Switching Power Supply that the utility model embodiment provides.Such as Fig. 3 institutes
Show, the initiating terminal of the armature winding 10 of transformer is connect with the Pin2 ends of EE13 5+2PIN skeletons, the end of armature winding 10
It is connect with the Pin1 ends of EE13 5+2PIN skeletons；For electric winding 11 winding wire equably dredge be around in armature winding 10 with it is secondary
Entire interlayer between winding 12, and the ground wire connection of the ground terminal and power generating facilities and power grids for electric winding 11, for rising for electric winding 11
Beginning is connect with the Pin5 ends of EE13 5+2PIN skeletons, for the end of electric winding 11 and the Pin4 ends of EE13 5+2PIN skeletons
Connection；The initiating terminal of secondary windings 12 is connect with the Pin6 ends of EE13 5+2PIN skeletons, the end of secondary windings 12 with
The Pin7 ends connection of EE135+2PIN skeletons, and the iron of 10mm long not actor playing a supporting role's pipe 30 is arranged at the initiating terminal of secondary windings 12,
The end of secondary windings 12, which is brought out, is arranged with the iron of 40mm long not actor playing a supporting role's pipe 31.
Fig. 4 is a kind of conduction test figure that conduction test is carried out to Switching Power Supply that the utility model embodiment provides.Such as
Shown in Fig. 4, straight trip line 40 and the regulation line value that line 41 of keeping straight on is international test standards, wherein, straight trip line 40 represents PK values (peak
Peak value), straight trip line 41 represents AV values (average value)；Curve 42 and curve 43 are power supply test line value, wherein, curve 42 represents
PK values, curve 43 represent AV values.Figure 4, it is seen that 42 test value of curve is significantly lower than straight trip 40 international standard value of line, it is bent
43 test value of line meets simultaneously significantly lower than straight trip 41 international standard value of line, i.e., the test value of two test curves less than Liang Tiao states
The condition of border standard specified value.
Fig. 5 is a kind of radiation test chart that radiation test is carried out to Switching Power Supply that the utility model embodiment provides.Such as
Shown in Fig. 5, straight trip line 50 is the regulation line value of international test standards, represents PK values, and curve 51 is power supply test value, represents PK
Value.From figure 5 it can be seen that 51 test value of curve less than straight trip 50 international standard value of line, i.e. the test value of p-wire meets low
The condition of international standard specified value.
In conclusion the EMC of the Switching Power Supply is qualified.Moreover, in actual test, the surplus in test data statistical value
Value also complies with international standard specified value, it is seen then that the Switching Power Supply has good EMC.
A kind of transformer provided by the utility model and a kind of Switching Power Supply are described in detail above.Specification
In each embodiment described by the way of progressive, it is difference with other embodiments that each embodiment, which stresses,
Just to refer each other for identical similar portion between each embodiment.
It should be pointed out that for those skilled in the art, before the utility model principle is not departed from
Put, can also to the utility model, some improvement and modification can also be carried out, these improvement and modification also fall into the utility model right
It is required that protection domain in.
It should also be noted that, in the present specification, such as first and second etc relational terms are used merely to one
A entity is either operated either to operate with another entity and be distinguished without necessarily requiring or implying these entities or behaviour
There are any actual relationship or orders between work.Moreover, term " comprising ", "comprising" or its any variant are intended to
Cover non-exclusive inclusion, so that process, method, article or equipment including a series of element not only include that
A little elements, but also other elements including being not explicitly listed either are further included as this process, method, article or are set
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in the process, method, article or apparatus that includes the element.
Claims (7)
1. a kind of transformer, including：Armature winding, for electric winding and secondary windings, which is characterized in that it is described for electric winding around
Group line is around in the entire interlayer between the armature winding and the secondary windings, and the ground terminal and power supply for electric winding
The ground wire connection of power grid.
2. transformer according to claim 1, which is characterized in that the winding wire for electric winding is equably dredged and is around in institute
State the entire interlayer between armature winding and the secondary windings.
3. transformer according to claim 1 or 2, which is characterized in that the skeleton of the transformer is specially thermmohardening modeling
Expect skeleton.
4. transformer according to claim 3, which is characterized in that the thermal hardening plastics skeleton is specially phenolic resin bone
Frame.
5. transformer according to claim 1 or 2, which is characterized in that the casing of the transformer is specially the iron not actor playing a supporting role
Pipe.
6. transformer according to claim 5, which is characterized in that the iron not the actor playing a supporting role pipe include the first iron not the actor playing a supporting role pipe with
Not the actor playing a supporting role manages second iron, and the length of first iron not actor playing a supporting role's pipe is at least 10mm, second iron not actor playing a supporting role's pipe length extremely
It is 40mm less；
Wherein, not actor playing a supporting role's pipe is at the initiating terminal of the secondary windings for first iron, and not actor playing a supporting role's pipe is located at second iron
At the end of the secondary windings.
7. a kind of Switching Power Supply, which is characterized in that including such as claim 1-6 any one of them transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732441.6U CN207558582U (en) | 2017-12-11 | 2017-12-11 | A kind of transformer and a kind of Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732441.6U CN207558582U (en) | 2017-12-11 | 2017-12-11 | A kind of transformer and a kind of Switching Power Supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207558582U true CN207558582U (en) | 2018-06-29 |
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ID=62664114
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732441.6U Active CN207558582U (en) | 2017-12-11 | 2017-12-11 | A kind of transformer and a kind of Switching Power Supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808759A (en) * | 2017-12-11 | 2018-03-16 | 东莞市港奇电子有限公司 | A kind of transformer and a kind of Switching Power Supply |
-
2017
- 2017-12-11 CN CN201721732441.6U patent/CN207558582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808759A (en) * | 2017-12-11 | 2018-03-16 | 东莞市港奇电子有限公司 | A kind of transformer and a kind of Switching Power Supply |
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