CN208352106U - transformer - Google Patents
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- CN208352106U CN208352106U CN201821018514.XU CN201821018514U CN208352106U CN 208352106 U CN208352106 U CN 208352106U CN 201821018514 U CN201821018514 U CN 201821018514U CN 208352106 U CN208352106 U CN 208352106U
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- primary side
- side winding
- line footpath
- sectional area
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Abstract
The utility model discloses a kind of transformers, including magnetic core, it further include the first primary side winding, the second primary side winding and vice-side winding, first primary side winding, the second primary side winding and vice-side winding are wound around on magnetic core, and first primary side winding, vice-side winding, the second primary side winding are set gradually from inside to outside, the circle number of first primary side winding is greater than the circle number of the second primary side winding, the line footpath of first primary side winding is less than the line footpath of the second primary side winding, and the sectional area of the first primary side winding is less than the sectional area of the second primary side winding.The reduction of the circle number of second primary side winding, it can reduce secondary side A.C.power loss, the reduction of the sectional area of the line footpath of first primary side winding and the first primary side winding can reduce primary side A.C.power loss, the final temperature rise for reducing transformer, and the transformer, under the premise of temperature rise is the same, bigger power can be exported.
Description
Technical field
The utility model relates to transformer technology fields, more particularly to a kind of transformer.
Background technique
Transformer (Transformer) is the device for changing alternating voltage using the principle of electromagnetic induction, main member
It is primary coil, secondary coil and iron core (magnetic core).Major function has: voltage transformation, impedance transformation, is isolated, is steady at current transformation
Press (magnetic saturation transformer) etc..
Transformer is widely used in switch power technology field, and flyback transformer is generally adopted at present in order to reduce leakage inductance
With sandwich winding, specifically primary side winding is divided into two, two primary side winding circle numbers are equal, and line footpath is identical, this
Scheme causes transformer heating serious, and under identical temperature condition, output power is lower.
Utility model content
The purpose of this utility model is that proposing a kind of transformer, it is seriously, identical to solve transformer heating in the prior art
Under temperature condition, the lower problem of output power.
A kind of transformer, including magnetic core, further include the first primary side winding, the second primary side winding and vice-side winding, and described
One primary side winding, the second primary side winding and vice-side winding are wound around on the magnetic core, and first primary side winding, the pair
Side winding, second primary side winding are set gradually from inside to outside, and it is former that the circle number of first primary side winding is greater than described second
The circle number of side winding, the line footpath of first primary side winding are less than the line footpath of second primary side winding, and first primary side
The sectional area of winding is less than the sectional area of second primary side winding.
According to the utility model proposes transformer, since the first primary side winding, vice-side winding, the second primary side winding are from interior
To setting gradually outside, and the circle number of the first primary side winding is greater than the circle number of the second primary side winding, according to A.C.power loss formula, second
The reduction of the circle number of primary side winding, can reduce secondary side A.C.power loss, and the line footpath of the first primary side winding less than the second primary side around
The line footpath of group, and the sectional area of the first primary side winding is less than the sectional area of the second primary side winding, the line footpath of the first primary side winding with
And first the reduction of sectional area of primary side winding can reduce primary side A.C.power loss, the final temperature rise for reducing transformer is practical to survey
Under the conditions of test result shows same specification transformation, compared with prior art, temperature can at least reduce by 5 DEG C；And the second primary side winding
The increase of the sectional area of line footpath and the second primary side winding can balance the first primary side winding line footpath and sectional area reduction is brought
DC losses, guarantee an equal amount of transformer, under the premise of temperature rise is the same, bigger power can be exported, it is practical to survey
Test result shows under identical temperature condition that compared with prior art, exportable power at least increases by 15%.
In addition, can also have the following additional technical features: according to transformer provided by the utility model
Further, the circle number of first primary side winding is Np1, and the circle number of second primary side winding is Np2, Np1/
Np2=1.5~2.5；The line footpath of first primary side winding is Ф Np1, and the line footpath of second primary side winding is Ф Np2, Ф
Np1=1.5~2.5 Np2/ Ф, the sectional area of first primary side winding are SNp1, and the line footpath of second primary side winding is to cut
Area is SNp2, SNp2/SNp1=1.5~4.
Further, the circle number of first primary side winding is Np1, and the circle number of second primary side winding is Np2, Np1/
Np2=1.78；The line footpath of first primary side winding is Ф Np1, and the line footpath of second primary side winding is Ф Np2, Ф Np2/
The sectional area of Ф Np1=1.5, first primary side winding are SNp1, and the line footpath of second primary side winding is that sectional area is
SNp2, SNp2/SNp1=1.5.
Further, the circle number of first primary side winding is Np1, and the circle number of second primary side winding is Np2, Np1/
Np2=1.875；The line footpath of first primary side winding is Ф Np1, and the line footpath of second primary side winding is Ф Np2, Ф Np2/
The sectional area of Ф Np1=1.6, first primary side winding are SNp1, and the line footpath of second primary side winding is that sectional area is
SNp2, SNp2/SNp1=1.852.
Further, the circle number of first primary side winding is Np1, and the circle number of second primary side winding is Np2, Np1/
Np2=1.67；The line footpath of first primary side winding is Ф Np1, and the line footpath of second primary side winding is Ф Np2, Ф Np2/
The sectional area of Ф Np1=2, first primary side winding are SNp1, and it is SNp2 that the line footpath of second primary side winding, which is sectional area,
SNp2/SNp1=2.
Further, the circle number of first primary side winding is Np1, and the circle number of second primary side winding is Np2, Np1/
Np2=2.1；The line footpath of first primary side winding is Ф Np1, and the line footpath of second primary side winding is Ф Np2, Ф Np2/ Ф
The sectional area of Np1=2.3, first primary side winding are SNp1, and it is SNp2 that the line footpath of second primary side winding, which is sectional area,
SNp2/SNp1=3.6.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the transformer of an embodiment of the present invention；
Fig. 2 is the circuit diagram of the transformer of an embodiment of the present invention.
Specific embodiment
It is practical to this with reference to the accompanying drawing to keep the purpose of this utility model, feature and advantage more obvious and easy to understand
Novel specific embodiment is described in detail.Several embodiments of the utility model are given in attached drawing.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to keep the disclosure to the utility model more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower" and similar statement for illustrative purposes only, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.Term " and or " used herein includes one or more relevant listed items
Any and all combinations.
Please refer to Fig. 1 and Fig. 2, the transformer that an embodiment of the utility model proposes, including magnetic core 10, the first primary side around
The 20, second primary side winding 30 of group and vice-side winding 40, first primary side winding 20, second primary side winding 30 and the pair
Side winding 40 is wound around on the magnetic core 10, and first primary side winding 20, the vice-side winding 40, second primary side
Winding 30 is set gradually from inside to outside.The circle number of first primary side winding 20 is greater than the circle number of second primary side winding 30,
The line footpath of first primary side winding 20 is less than the line footpath of second primary side winding 30, and section of first primary side winding 20
Area is less than the sectional area of second primary side winding 30.
Specifically, the circle number of first primary side winding 20 is Np1, second primary side as optimal embodiment
The circle number of winding 30 is Np2, Np1/Np2=1.5~2.5；The line footpath of first primary side winding 20 be Ф Np1, described second
The line footpath of primary side winding 30 is Ф Np2, and Np1=1.5~2.5 Ф Np2/ Ф, the sectional area of first primary side winding 20 is
SNp1, the line footpath of second primary side winding 30 are that sectional area is SNp2, SNp2/SNp1=1.5~4.
It is described in detail below with 4 improved transformers, while comparing transformer in the prior art, this 4 changes
The relevant parameter and test result of the transformer of depressor and in the prior art same specification may refer to following table:
As can be seen from the above table, improved 4 transformers in the present embodiment, under the conditions of same specification transformation, compared to existing
Technology, temperature can at least reduce by 5 DEG C；And an equal amount of transformer, under the premise of temperature rise is the same, output power is to reducing
Add 15%.
According to A.C.power loss formula: P=ρ * L/S × [(Np2*Ip+NsIs) 2*Ks1+ (Ns*Is) 2*Ks2], wherein ρ is
The resistivity of copper, L are wire length, and S is cross-sectional area, and Ks1 is approach effect coefficient, and Ks2 is skin effect coefficient.Therefore, Np2 subtracts
It is small, secondary side A.C.power loss can be reduced, the reduction of Ф Np1 and SNp1 can reduce primary side A.C.power loss, finally reduces transformer
Temperature rise, meanwhile, the increase of Ф Np2 and SNp2 can balance the first primary side winding line footpath and sectional area reduce brought by it is straight
Stream loss.
To sum up, the transformer proposed according to the present embodiment, due to the first primary side winding, vice-side winding, the second primary side winding
It sets gradually from inside to outside, and the circle number of the first primary side winding is greater than the circle number of the second primary side winding, according to A.C.power loss formula,
The reduction of the circle number of second primary side winding, can reduce secondary side A.C.power loss, and the line footpath of the first primary side winding is less than the second original
The line footpath of side winding, and the sectional area of the first primary side winding is less than the sectional area of the second primary side winding, the line of the first primary side winding
The reduction of diameter and the sectional area of the first primary side winding can reduce primary side A.C.power loss, the final temperature rise for reducing transformer, real
Under the conditions of border test result shows same specification transformation, compared with prior art, temperature can at least reduce by 5 DEG C；And the second primary side around
The increase of the sectional area of the line footpath and the second primary side winding of group can balance the first primary side winding line footpath and sectional area reduces institute
Bring DC losses guarantee an equal amount of transformer, under the premise of temperature rise is the same, can export bigger power, real
Border test result shows under identical temperature condition that compared with prior art, exportable power at least increases by 15%.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. a kind of transformer, including magnetic core, which is characterized in that further include the first primary side winding, the second primary side winding and secondary side around
Group, first primary side winding, second primary side winding and the vice-side winding are wound around on the magnetic core, and described
One primary side winding, the vice-side winding, second primary side winding are set gradually from inside to outside, the circle of first primary side winding
Number is greater than the circle number of second primary side winding, and the line footpath of first primary side winding is less than the line of second primary side winding
Diameter, and the sectional area of first primary side winding is less than the sectional area of second primary side winding.
2. transformer according to claim 1, which is characterized in that the circle number of first primary side winding is Np1, described the
The circle number of two primary side windings is Np2, Np1/Np2=1.5~2.5；The line footpath of first primary side winding is Ф Np1, described the
The line footpath of two primary side windings is Ф Np2, and Np1=1.5~2.5 Ф Np2/ Ф, the sectional area of first primary side winding is SNp1,
The line footpath of second primary side winding is that sectional area is SNp2, SNp2/SNp1=1.5~4.
3. transformer according to claim 2, which is characterized in that the circle number of first primary side winding is Np1, described the
The circle number of two primary side windings is Np2, Np1/Np2=1.78；The line footpath of first primary side winding is Ф Np1, and described second is former
The line footpath of side winding is Ф Np2, Ф Np2/ Ф Np1=1.5, and the sectional area of first primary side winding is SNp1, described second
The line footpath of primary side winding is that sectional area is SNp2, SNp2/SNp1=1.5.
4. transformer according to claim 2, which is characterized in that the circle number of first primary side winding is Np1, described the
The circle number of two primary side windings is Np2, Np1/Np2=1.875；The line footpath of first primary side winding is Ф Np1, and described second is former
The line footpath of side winding is Ф Np2, Ф Np2/ Ф Np1=1.6, and the sectional area of first primary side winding is SNp1, described second
The line footpath of primary side winding is that sectional area is SNp2, SNp2/SNp1=1.852.
5. transformer according to claim 2, which is characterized in that the circle number of first primary side winding is Np1, described the
The circle number of two primary side windings is Np2, Np1/Np2=1.67；The line footpath of first primary side winding is Ф Np1, and described second is former
The line footpath of side winding is Ф Np2, and Ф Np2/ Ф Np1=2, the sectional area of first primary side winding is SNp1, and described second is former
The line footpath of side winding is that sectional area is SNp2, SNp2/SNp1=2.
6. transformer according to claim 2, which is characterized in that the circle number of first primary side winding is Np1, described the
The circle number of two primary side windings is Np2, Np1/Np2=2.1；The line footpath of first primary side winding is Ф Np1, second primary side
The line footpath of winding is Ф Np2, and Ф Np2/ Ф Np1=2.3, the sectional area of first primary side winding is SNp1, and described second is former
The line footpath of side winding is that sectional area is SNp2, SNp2/SNp1=3.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018514.XU CN208352106U (en) | 2018-06-28 | 2018-06-28 | transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018514.XU CN208352106U (en) | 2018-06-28 | 2018-06-28 | transformer |
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| Publication Number | Publication Date |
|---|---|
| CN208352106U true CN208352106U (en) | 2019-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821018514.XU Active CN208352106U (en) | 2018-06-28 | 2018-06-28 | transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086276A (en) * | 2020-09-22 | 2020-12-15 | 广州智光电气技术有限公司 | Transformer and cascaded switch power supply |
-
2018
- 2018-06-28 CN CN201821018514.XU patent/CN208352106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086276A (en) * | 2020-09-22 | 2020-12-15 | 广州智光电气技术有限公司 | Transformer and cascaded switch power supply |
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