CN206819866U - Transformer - Google Patents
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- CN206819866U CN206819866U CN201720551800.1U CN201720551800U CN206819866U CN 206819866 U CN206819866 U CN 206819866U CN 201720551800 U CN201720551800 U CN 201720551800U CN 206819866 U CN206819866 U CN 206819866U
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- magnetic core
- secondary windings
- transformer
- output pin
- parallel
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- 238000004804 winding Methods 0.000 claims abstract description 109
- 238000009432 framing Methods 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model provides a transformer, which comprises at least two magnetic cores, at least two primary windings with a cake-shaped structure, at least two secondary windings with a laminated structure, at least two primary output pins arranged with the magnetic cores in an insulating way, at least two first secondary output pins arranged with the magnetic cores in an insulating way and at least one second secondary output pin arranged with the magnetic cores in an insulating way; the at least two magnetic cores are arranged side by side, and the side edges of the two adjacent magnetic cores are mutually attached in an insulating way; each magnetic core is wound with at least one primary winding and at least one secondary winding, and the primary winding and the secondary winding on the same magnetic core are arranged in a laminated mode; at least two primary windings are connected in series and at least two secondary windings are connected in parallel. The utility model discloses a transformer is small, power level is high and be applicable to the narrow occasion in space.
Description
Technical field
Power technique fields are the utility model is related to, more particularly, to a kind of transformer.
Background technology
Transformer is mainly made up of magnetic core, skeleton, winding, insulant and fastener etc..Existing transformer in order to
The occasion (such as inside LED display device) in high-power low-voltage, high-current is applied, typically can all increase magnetic core and skeleton, and
In order to meet the requirement of high current, it is necessary to increase the diameter of winding conducting wire, these volumes for having resulted in transformer become big
And profile is square, so that the transformer of existing high-power low-voltage, high-current is not suitable for being applied to narrow space and power
The high occasion of density requirements.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of small volume, power grade height and is applied to sky
Between narrow occasion transformer.
To achieve these goals, the utility model on the one hand provide a kind of transformer, it include at least two magnetic cores,
At least two be the armature winding of cake formula structure, at least two be the secondary windings of laminated structure, at least two with the magnetic
Primary output pin that core insulation is set, at least two first level output pin and at least set with the magnetic core isolation
One second subprime output pin set with the magnetic core isolation；
At least two magnetic core is arranged side by side and the insulated fitting between each other of the side of adjacent two magnetic cores；
Each described magnetic core is wound with least one armature winding and at least one secondary windings, and same institute
Both the armature winding on magnetic core and described secondary windings is stated to be stacked；At least two primary windings connected in series connects
Connect, at least two secondary windings is connected in parallel；
At least two primary output pin is drawn correspondingly from least two armature winding, it is described at least
Two first level output pins are drawn correspondingly from least two secondary windings, at least one second subprime
Output pin is drawn from the place of being connected in parallel of the secondary windings on two adjacent magnetic cores.
Further, the transformer also includes at least two inductance, coil one end difference of at least two inductance
Connected one to one with the place of being connected in parallel of the secondary windings each described on magnetic core, the line of at least two inductance
The connection corresponding with the second subprime output pin of the other end of circle.
Further, the inductance is ring inductance.
Further, the transformer also includes one piece of busbar set with least two magnetic core isolation, described
Busbar includes at least a lattice framing, first main piece and second main piece；Wherein, the magnetic core is directed at the logical of the armature winding
The one side in hole is the top of the magnetic core, and one side that the magnetic core is directed at the through hole of the secondary windings is the bottom of the magnetic core
Portion；Described first main piece extends outward and parallel with the top of the magnetic core at the top of at least two magnetic core；Institute
State an at least lattice framing correspondingly pass through the ring inductance through hole, and one end of at least one lattice framing with it is described
First main piece of connection, the other end of at least one lattice framing and the secondary magnetic core winding on each described magnetic core and
Connection junction connects one to one；Described second main piece one end is connected with described first main piece, described second main piece another
Hold and extend to the bottom of the magnetic core and be used as the second subprime output pin.
Further, the transformer also includes a printed circuit board (PCB), and the printed circuit board (PCB) is from least two magnetic
The bottom of core extends outward, and the printed circuit board (PCB) is parallel with the bottom of described two magnetic cores and close to described at least two
Secondary windings；Described first main piece is parallel and relative with the printed circuit board (PCB), the lattice framing located at the printed circuit board (PCB) with
It is described between first main piece；At least two primary output pin and at least one second subprime output pin to
The bottom of the magnetic core is drawn, and at least two first level output pins are in the one side of the printed circuit board (PCB) and lean on
The bottom of the nearly magnetic core.
Further, the quantity of the magnetic core and the armature winding is two, and the quantity of the secondary windings is
Four；Two of which secondary windings is wrapped on one of them described magnetic core in parallel, and two other secondary windings twines in parallel
It is wound on another described magnetic core, and secondary windings described in the two of which on one of them described magnetic core and another described magnetic
Two other described secondary windings on core is connected in parallel.
Further, the magnetic core is EI types, EQ types or EQI types.
Further, the secondary windings is copper strip constructions.
Further, the periphery of the magnetic core is wound with encapsulated band.
Further, the primary output pin is arranged with Teflon sleeve pipe.
The transformer provided by the utility model, by by least two primary windings connected in series connections and near
Few two secondary windings are connected in parallel, can so allow the transformer meet low-voltage, high-current requirement and can
To improve the power grade of the transformer；And allow the armature winding to use cake formula structure, and allow the secondary windings to adopt
With laminated structure, the transformer so can be not only allowd to meet the requirement of low-voltage, high-current, and can cause
The transformer is without using skeleton, so as to reduce the volume of the transformer；And by by described two magnetic cores simultaneously
Row is set, and so the transformer can be enabled to make narrow elongate structure, so that the transformer can be applied to
The occasion of narrow space.Therefore, the volume of transformer of the present utility model is small, and power grade is high and suitable for narrow space
Occasion.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by embodiment it is required use it is attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of front view for transformer that the utility model embodiment provides；
Fig. 2 is a kind of left view for transformer that the utility model embodiment provides；
Fig. 3 is a kind of top view for transformer that the utility model embodiment provides；
Fig. 4 is a kind of right view for transformer that the utility model embodiment provides；
Fig. 5 is a kind of circuit structure diagram for transformer that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 to Fig. 4 is referred to, the utility model provides a kind of transformer, and it includes at least two magnetic cores 1, at least two
Individual is that the secondary windings 3, at least two that the armature winding 2, at least two of cake formula structure is laminated structure and the magnetic core 1 are exhausted
First level output pin 5 of primary output pin 4, at least two and the insulation set of magnetic core 1 that edge is set and at least
One with the second subprime output pin 6 of the insulation set of magnetic core 1；
At least two magnetic core 1 is arranged side by side and the side of adjacent two magnetic cores 1 insulated patch between each other
Close；Each described magnetic core 1 is wound with least one armature winding 2 and at least one secondary windings 3, and together
Both described armature winding 2 and the secondary windings 3 on one magnetic core 1 are stacked；Described at least two it is primary around
Group 2 is connected in series, and at least two secondary windings 3 is connected in parallel；
At least two primary output pin 4 is drawn correspondingly from least two armature winding 2, it is described extremely
Few two first level output pins 5 are drawn correspondingly from least two secondary windings 3, and described at least one second
Secondary output pin 6 is drawn from the place of being connected in parallel of the secondary windings 3 on two adjacent magnetic cores 1.
Wherein, the armature winding 2 is cake formula structure, can so increase the armature winding 2 coiling density with
The number of turn, and can cause armature winding 2 need not be by wound, so as to reduce the volume of the transformer；It is described it is secondary around
Group 3 is laminated structure, can so strengthen the conductive capability of the secondary windings 3, and secondary windings 3 can be caused without logical
Wound is crossed, so as to reduce the volume of the transformer.
Preferably, the secondary windings 3 is copper sheet winding.Wherein, the copper sheet winding has good conductive capability, from
And the transformer is caused to disclosure satisfy that the application requirement of high current.It should be noted that the secondary windings 3 can also be aluminium
Piece winding or alloy sheet winding etc., the copper sheet winding that the copper sheet winding can be formed in one can also be polylith copper sheet according to
The secondary copper sheet winding being formed by stacking, is not specifically limited herein.
Preferably, the magnetic core 1 is EI types, EQ types or EQI types.Wherein, the magnetic core 1 is EI types, EQ types or EQI
Type can cause the compact-sized of the transformer.
Preferably, the periphery of the magnetic core 1 is wound with encapsulated band.The transformer can be so caused to meet that safety will
Ask.It should be noted that the 1 passable periphery of magnetic core can also meet that safety will by being enclosed with insulated plastic material shell etc.
Ask.
Preferably, Fig. 1 is referred to, the primary output pin 4 is arranged with Teflon sleeve pipe 7.Institute can so be caused
State primary output pin 4 to insulate with the magnetic core 1, so that the transformer can meet safety requirement.Need what is illustrated
It is that the primary output pin 4 either can also be coated with insulated paint to meet to pacify by winding one layer of ambroin film
Rule require, are not specifically limited herein.
In the utility model embodiment, by least two armature windings 2 being connected in series and will at least two
The individual secondary windings 3 is connected in parallel, so can not only allow the transformer meet low-voltage, high-current requirement and
The power grade of the transformer can be improved；And allow the armature winding 2 to use cake formula structure, and allow the secondary windings
3 use laminated structure, so can not only allow the transformer to meet the requirement of low-voltage, high-current, and can make
The transformer is obtained without use skeleton, so as to reduce the volume of the transformer；And by by described two magnetic cores 1
It is arranged side by side, so the transformer can be enabled to make narrow elongate structure, so that the transformer can be applicable
In the occasion of narrow space.Therefore, the volume of transformer of the present utility model is small, and power grade is high and is applied to narrow space
Occasion.
Above-mentioned technical proposal is further improved, refers to Fig. 1 to Fig. 4, the transformer also includes at least two electricity
Sense 8, one end of the coil of at least two inductance 8 is in parallel with the secondary windings 3 on magnetic core each described 1 respectively
Junction connects one to one, and the other end of the coil of at least two inductance 8 is right with the second subprime output pin 6
It should connect.
Wherein, when the transformer application, in LLC resonance converters, (LLC resonance converters are a kind of Switching Power Supply topology
Structure, it realizes Sofe Switch action so as to reduce conducting damage by the resonant inductance in circuit and resonant capacitance at work
Consumption and power attenuation) when, the output par, c of the secondary windings 3 by the way that the inductance 8 to be integrated in the transformer is (i.e. described
Secondary windings 3 is connected in parallel place) on,, can by the equivalent mode of the primary and secondary of transformer so when the transformer works
To cause the sensibility reciprocal reflexed of the inductance 8 to the primary side (i.e. armature winding 2) of the transformer, so that the inductance 8
Cause LLC resonance converter normal works as resonant inductance.Therefore by being integrated in the output par, c of the secondary windings 3
There is the inductance 8, the transformer can be allowd to reduce the working losses of LLC resonance converters described so as to improve
The operating efficiency of LLC resonance converters.
Further, Fig. 1 to Fig. 4 is referred to, the inductance 8 is ring inductance 8.Wherein, the ring inductance 8 has body
The small, low cost and other advantages of product.
Yet further, Fig. 1 to Fig. 4 is referred to, the transformer also insulate including one piece with least two magnetic core 1
The busbar 9 of setting, the busbar 9 include at least 90, first main piece 91 and second main piece 92 of a lattice framing；Wherein, institute
The one side for stating the through hole that magnetic core 1 is directed at the armature winding 2 is the top of the magnetic core 1, the magnetic core 1 be aligned it is described it is secondary around
One side of the through hole of group 3 is the bottom of the magnetic core 1；Described first main piece 91 outside from the top of at least two magnetic core 1
Extend out and parallel with the top of the magnetic core 1；An at least lattice framing 90 passes through the ring inductance 8 correspondingly
Through hole, and one end of at least one lattice framing 90 is connected with described first main piece 91, at least lattice framing 90 it is another
One end and the place of being connected in parallel of the winding of the secondary magnetic core 1 on magnetic core each described 1 connect one to one；Second master
One end of block 92 is connected with described first main piece 91, and described second main piece 92 of the other end extends simultaneously to the bottom of the magnetic core 1
As the second subprime output pin 6.
Wherein, the place of being connected in parallel of the secondary windings 3 is connected with the busbar 9, can so cause the secondary
The current output capability of winding 3 improves, and can reduce the conduction loss of the electric current of the secondary windings 3, so as to carry
The operating efficiency of the high transformer.In addition, the through hole by the way that the lattice framing 90 to be passed through to the ring inductance 8, so can be with
The ring inductance 8 and the lattice framing 90 of the busbar 9 are integrated, so that the structure of the transformer is tight
Gather.It should be noted that the lattice framing 90, described first main piece 91 and described second main piece 92 of material are both preferably copper material
Matter, and the lattice framing 90, described first main piece 91 be integrally formed with described second main piece 92.In addition, when magnet ring electricity
Sense 8 on there is no wound around coil but only magnet ring when because the lattice framing 90 pass through the magnet ring through hole, the magnet ring can
To regard as a ring inductance 8 for being wound with 1 turn coil (i.e. described lattice framing 90).
Further, Fig. 1 to Fig. 3 is referred to, the transformer also includes a printed circuit board (PCB) 10, the printed circuit
Plate 10 extends outward from the bottom of at least two magnetic core 1, the bottom of the printed circuit board (PCB) 10 and described two magnetic cores 1
Portion is parallel and close at least two secondary windings 3；Described first main piece 91 is parallel and relative with the printed circuit board (PCB) 10,
The lattice framing 90 is located at the printed circuit board (PCB) 10 and described between first main piece 91；At least two primary output pin 4
And at least one second subprime output pin 6 is drawn to the bottom of the magnetic core 1, at least two first levels
Output pin 5 is in the one side of the printed circuit board (PCB) 10 and close to the bottom of the magnetic core 1.
Wherein, by being provided with the printed circuit board (PCB) 10 in the bottom of at least two magnetic cores 1, described two can be caused
Individual magnetic core 1 is fixed as an entirety with the printed circuit board (PCB) 10.And by the way that at least two first levels output is drawn
Pin 5 can so cause first level in the one side of the printed circuit board (PCB) 10 and close to the bottom of the magnetic core 1
Output pin 5 is fixed.And described at least two primary output pins 4 and at least one second subprime are exported
Pin 6 is drawn to the bottom of the magnetic core 1, can so make it that first level output pin 5, the second subprime are defeated
Go out pin 6 and the primary output pin 4 and (i.e. three is in the bottom of the magnetic core 1) be set in the same direction, so as to facilitate this three
Person and the external circuit board weld.In addition, by by described first main piece 91, both are parallel with the printed circuit board (PCB) 10
And be relatively respectively arranged at the bottom and top of the magnetic core 1, and by the inductance 8 located at described first main piece 91 with it is described
Between printed circuit board (PCB) 10, it can so cause the compact-sized of the transformer.
Preferably, refer to Fig. 5, the quantity of the magnetic core 1 and the armature winding 2 is two, it is described it is secondary around
The quantity of group 3 is four；Two of which secondary windings 3 is wrapped on one of them described magnetic core 1 in parallel, and two other is secondary
Winding 3 is wrapped on another described magnetic core 1 in parallel, and secondary described in the two of which on one of them described magnetic core 1 around
Group 3 is connected in parallel with two other described secondary windings 3 on magnetic core another described 1.Wherein, it is two that the magnetic core 1 is excellent
It can make it that the volume of the transformer is relatively small, so that the transformer may apply to the narrow field in space
Close.And each described 1 equal parallel connection of magnetic core is wound with two secondary windings 3, and wherein two on one of them described magnetic core 1
The individual secondary windings 3 is connected in parallel with two other described secondary windings 3 on magnetic core another described 1, can so be compared
The power density higher grade that magnetic core 1 is only wound with the transformer of a secondary windings 3.Here, this preferred embodiment is carried out
For example, described two magnetic cores 1 can select the magnetic core 1 of the transformer of EQI26 models, described two armature windings 2
Coil turn can be 21 circles, the number of turn of the coil of four secondary windings 3 can be 1 circle.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any those skilled in the art is in the change that in technical scope, can be readily occurred in disclosed in the utility model
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described
Scope of the claims is defined.
Claims (10)
- A kind of 1. transformer, it is characterised in that the armature winding, extremely including at least two magnetic cores, at least two for cake formula structure Few two are the secondary windings of laminated structure, at least two primary output pins set with the magnetic core isolation, at least two The individual first level output pin set with the magnetic core isolation and at least one second set with the magnetic core isolation Level output pin；At least two magnetic core is arranged side by side and the insulated fitting between each other of the side of adjacent two magnetic cores；It is each The individual magnetic core is wound with least one armature winding and at least one secondary windings, and the same magnetic Both the armature winding on core and described secondary windings are stacked；At least two primary windings connected in series connection, institute At least two secondary windings are stated to be connected in parallel；At least two primary output pin is drawn correspondingly from least two armature winding, and described at least two First level output pin is drawn correspondingly from least two secondary windings, at least one second subprime output Pin is drawn from the place of being connected in parallel of the secondary windings on two adjacent magnetic cores.
- 2. transformer according to claim 1, it is characterised in that also including at least two inductance, at least two electricity Be connected in parallel place of the coil one end of sense respectively with the secondary windings each described on magnetic core connects one to one, described The connection corresponding with the second subprime output pin of the other end of the coil of at least two inductance.
- 3. transformer according to claim 2, it is characterised in that the inductance is ring inductance.
- 4. transformer according to claim 3, it is characterised in that also set including one piece and at least two magnetic core isolation The busbar put, the busbar include at least a lattice framing, first main piece and second main piece；Wherein, the magnetic core alignment One side of the through hole of the armature winding is the top of the magnetic core, and the magnetic core is directed at one side of the through hole of the secondary windings For the bottom of the magnetic core；Described first main piece extends outward and parallel with the top of the magnetic core at the top of at least two magnetic core；Institute State an at least lattice framing correspondingly pass through the ring inductance through hole, and one end of at least one lattice framing with it is described First main piece of connection, the other end of at least one lattice framing and the secondary magnetic core winding on each described magnetic core and Connection junction connects one to one；Described second main piece one end is connected with described first main piece, described second main piece another Hold and extend to the bottom of the magnetic core and be used as the second subprime output pin.
- 5. transformer according to claim 4, it is characterised in that also including a printed circuit board (PCB), the printed circuit board (PCB) Extended outward from the bottom of at least two magnetic core, the printed circuit board (PCB) is parallel with the bottom of described two magnetic cores simultaneously Close at least two secondary windings；Described first main piece parallel and relative with the printed circuit board (PCB), and the lattice framing is located at the printed circuit board (PCB) and described the Between one main piece；At least two primary output pin and at least one second subprime output pin are to the bottom of the magnetic core Portion is drawn, and at least two first level output pins are in the one side of the printed circuit board (PCB) and close to the magnetic core Bottom.
- 6. according to the transformer described in claim 1 to 5 any one, it is characterised in that the magnetic core and it is described it is primary around The quantity of group is two, and the quantity of the secondary windings is four；Two of which secondary windings winds wherein one in parallel On the individual magnetic core, two other secondary windings is wrapped on another described magnetic core in parallel, and one of them described magnetic core On two of which described in secondary windings be connected in parallel with two other described secondary windings another described on magnetic core.
- 7. according to the transformer described in claim 1 to 5 any one, it is characterised in that the magnetic core be EI types, EQ types or EQI types.
- 8. according to the transformer described in claim 1 to 5 any one, it is characterised in that the secondary windings be copper sheet around Group.
- 9. according to the transformer described in claim 1 to 5 any one, it is characterised in that the periphery of the magnetic core is wound with Encapsulated band.
- 10. according to the transformer described in claim 1 to 5 any one, it is characterised in that the primary output pin is arranged There is Teflon sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551800.1U CN206819866U (en) | 2017-05-17 | 2017-05-17 | Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551800.1U CN206819866U (en) | 2017-05-17 | 2017-05-17 | Transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206819866U true CN206819866U (en) | 2017-12-29 |
Family
ID=60755870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551800.1U Active CN206819866U (en) | 2017-05-17 | 2017-05-17 | Transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206819866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882571A (en) * | 2017-05-16 | 2018-11-23 | 株式会社万都 | Electronic control unit |
-
2017
- 2017-05-17 CN CN201720551800.1U patent/CN206819866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882571A (en) * | 2017-05-16 | 2018-11-23 | 株式会社万都 | Electronic control unit |
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