CN207009263U - A kind of flat surface transformer of integrated current transformer - Google Patents
A kind of flat surface transformer of integrated current transformer Download PDFInfo
- Publication number
- CN207009263U CN207009263U CN201720386480.9U CN201720386480U CN207009263U CN 207009263 U CN207009263 U CN 207009263U CN 201720386480 U CN201720386480 U CN 201720386480U CN 207009263 U CN207009263 U CN 207009263U
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- China
- Prior art keywords
- transformer
- flat surface
- winding
- current transformer
- magnetic core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000004804 winding Methods 0.000 claims abstract description 76
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 229920006335 epoxy glue Polymers 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a kind of flat surface transformer of integrated current transformer, and it includes two magnetic core of transformers mutually covered, the current transformer core of two pairs of settings, printed circuit board and the primary winding being arranged between two magnetic core of transformers；The printed circuit board includes being printed with the Transformer Winding portion of transformer secondary output winding and is printed with the current transformer winding portion of current transformer winding, described primary winding and the printed circuit board insulation set.Flat surface transformer provided by the utility model, it is by the way that current transformer and transformer are integrated in one, the height-volume of product can be effectively reduced and improve the power density of product, while can also effectively solve the problems, such as product in kelvin effect, kindred effect, leakage inductance etc..
Description
Technical field
It the utility model is related to a kind of flat surface transformer, more particularly to a kind of flat surface transformer of integrated current transformer.
Background technology
At present, the design of current production, the design that usually transformer individually separates with current transformer, shared by device
Pcb board space it is larger, as shown in accompanying drawing 5, A and B in accompanying drawing 5 are respectively primary winding of the prior art
The schematic diagram of skeleton summation current transformer skeleton, because primary winding summation current transformer has winding, primary and secondary
Coupling is poor, and leakage inductance is high, and product is also difficult to flattening.The function of present electronic product is more and more stronger, and they
Size and weight are but constantly being reduced, therefore, the structure that existing transformer individually separately designs with current transformer, it is difficult to full
The growth requirement of the existing miniaturization of electronic products of foot.
Utility model content
For overcome the deficiencies in the prior art and the problem of exist, the utility model provides a kind of the flat of integrated current transformer
Face transformer, it eliminates the skeleton and Current Mutual Inductance of transformer by the way that current transformer core and transformer are integrated in one
The skeleton of device, so as to the power density for significantly reducing the height-volume of product He improving product.
The utility model is achieved through the following technical solutions：A kind of flat surface transformer of integrated current transformer, its
Including two magnetic core of transformers mutually covered, the current transformer cores of two pairs of settings and are arranged at two changes at printed circuit board
Primary winding between depressor magnetic core；The printed circuit board include being printed with the transformer of transformer secondary output winding around
Group portion and the current transformer winding portion for being printed with current transformer winding, the Transformer Winding portion are located at two transformer magnetic
Between core, and the terminals of the transformer secondary output winding are located at outside magnetic core of transformer, the current transformer winding portion then position
Outside two magnetic core of transformers, and the current transformer winding portion is between two current transformer cores；The transformer
The terminals of armature winding extend to the input as current transformer, described primary winding outside magnetic core of transformer
With the printed circuit board insulation set.
Preferably, the periphery that the Transformer Winding portion is located at outside magnetic core of transformer is provided with a projection portion, the transformation
The terminals of device secondary windings are arranged in the projection portion；The input of the flat surface transformer is fixedly installed on the printing electricity
On one side in the Transformer Winding portion of road plate, the test side of the current transformer is arranged at the transformation of the printed circuit board
On another side of device winding portion；The output end of the flat surface transformer is arranged in the projection portion, and the plane transformation
The output end of device is connected with the terminals of the transformer secondary output winding.
Preferably, fixed between two magnetic core of transformers by geometrical clamp；The quantity that the geometrical clamp is set is three, three
Geometrical clamp is evenly distributed on the periphery of magnetic core of transformer.
It is preferred that two current transformer cores are fixed by epoxy glue；Described primary winding and the printing
Insulating tape is provided between circuit board.
It is preferred that the magnetic core of transformer is integrally in cylinder；The Transformer Winding portion is circle；The Current Mutual Inductance
Device winding portion is rectangle.
The flat surface transformer of integrated current transformer provided by the utility model, it is by by current transformer core and transformation
Device is integrated in one, and can be effectively reduced the height-volume of product and improve the power density of product；And by by transformer
Secondary windings summation current transformer winding is set on a printed circuit board, so as to eliminate the skeleton summation current transformer of transformer
Skeleton, it is effective reduce production with manufacturing cost while, can also effectively solve product in kelvin effect, kindred effect, leakage
The problem of inductance etc..
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of flat surface transformer described in the utility model embodiment.
Fig. 2 is the overlooking the structure diagram of flat surface transformer described in the utility model embodiment.
Fig. 3 is the part decomposition texture schematic diagram of flat surface transformer described in the utility model embodiment.
Fig. 4 is the structural representation of printed circuit board described in the utility model embodiment.
It is the schematic diagram of primary winding skeleton summation current transformer skeleton of the prior art in Fig. 5.
Wherein, drawing reference numeral is：10- magnetic core of transformers, the terminals of 11- transformer secondary output windings, 12- geometrical clamps, 20-
Current transformer core, the input of 21- current transformers, the test side of 22- current transformers, 30- printed circuit boards, 31-
Transformer Winding portion, 32- current transformer winding portion, 33- projections portion, 40- primary windings.
Embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below in conjunction with the drawings and specific embodiments into
One step is described in detail.
As shown in accompanying drawing 1-4, a kind of flat surface transformer of integrated current transformer, it includes two transformers mutually covered
Magnetic core 10, the current transformer cores 20 of two pairs of settings, printed circuit board 30 and is arranged between two magnetic core of transformers 10
Primary winding 40；The printed circuit board 30 include be printed with transformer secondary output winding Transformer Winding portion 31 and
The current transformer winding portion 32 of current transformer winding is printed with, the Transformer Winding portion 31 is located at two magnetic core of transformers 10
Between, and the terminals 11 of the transformer secondary output winding are located at outside magnetic core of transformer 10, the current transformer winding portion 32
Then outside two magnetic core of transformers 10, and the current transformer winding portion 32 is between two current transformer cores 20；
The terminals of the primary winding 40 extend to the input 21 as current transformer outside magnetic core of transformer 10, described
Primary winding 40 and the insulation set of printed circuit board 30.In the present embodiment, described primary winding
Be provided with insulating tape between 40 and the printed circuit board 30, with this can realize described primary winding 40 with it is described
The insulation set of printed circuit board 30.In addition, the magnetic core of transformer 10 is overall in cylinder；And the Transformer Winding portion 31 is excellent
Elect circle as；The current transformer winding portion 32 is preferably rectangular.
Preferably, the periphery that the Transformer Winding portion 31 is located at outside magnetic core of transformer 10 is provided with a projection portion 33,
The terminals 11 of the transformer secondary output winding are arranged in the projection portion 33；The input fixed setting of the flat surface transformer
In on a side in the Transformer Winding portion 31 of the printed circuit board 30, the test side 22 of the current transformer is arranged at institute
On another side for stating the Transformer Winding portion 31 of printed circuit board 30；The output end of the flat surface transformer is arranged at described convex
In block portion 33, and the output end of the flat surface transformer is connected with the terminals 11 of the transformer secondary output winding.The present embodiment
In, the input 21 of the input summation current transformer of flat surface transformer is actually same input, i.e. electricity in accompanying drawing 1
The input 21 of current transformer, while be also the input of flat surface transformer.The output end of the flat surface transformer, for two and institute
The PIN needle that the terminals 11 of transformer secondary output winding connect is stated, two PIN needles are fixedly installed in the projection portion 33.In addition, institute
The test side 22 of current transformer is stated, the present embodiment is two PIN needles being connected with the terminals of the current transformer winding.
In a wherein preferred embodiment, fixed between two magnetic core of transformers 10 by geometrical clamp 12；The present embodiment
In, the quantity that the geometrical clamp 12 is set is preferably three, and three geometrical clamps 12 are evenly distributed on the periphery of magnetic core of transformer 10.
And two current transformer cores 20 can be then fixed by epoxy glue.In addition, except current transformer core 20, plane transformation
It can be also fixed between the miscellaneous part of device using epoxy glue, further to strengthen the firm reliability of product.
Compared with prior art, the flat surface transformer that the present embodiment provides has the advantages that：It is by by electric current
Transformer core and transformer are integrated in one, and can be effectively reduced the height-volume of product and improve the power density of product；
Meanwhile also by the way that transformer secondary output winding summation current transformer winding is set on a printed circuit board, so as to eliminate transformation
The skeleton of the skeleton summation current transformer of device, while effective reduction production is with manufacturing cost, can also effectively solve product and exist
The problem of kelvin effect, kindred effect, leakage inductance etc..
Above-described embodiment is preferable implementation of the present utility model, is not to restriction of the present utility model, not
On the premise of departing from inventive concept of the present utility model, it is any it is obvious replace the scope of protection of the utility model it
It is interior.
Claims (10)
- A kind of 1. flat surface transformer of integrated current transformer, it is characterised in that：Including two magnetic core of transformers mutually covered （10）, the current transformer core of two pairs of settings（20）, printed circuit board（30）And it is arranged between two magnetic core of transformers Primary winding（40）；The printed circuit board includes being printed with the Transformer Winding portion of transformer secondary output winding（31）With And it is printed with the current transformer winding portion of current transformer winding（32）, the Transformer Winding portion is located at two magnetic core of transformers Between, and the terminals of the transformer secondary output winding are located at outside magnetic core of transformer, the current transformer winding portion is then located at Outside two magnetic core of transformers, and the current transformer winding portion is between two current transformer cores；At the beginning of the transformer The terminals of level winding extend to the input outside magnetic core of transformer as current transformer（21）, described primary around Group and the printed circuit board insulation set.
- 2. flat surface transformer according to claim 1, it is characterised in that：The Transformer Winding portion is located at magnetic core of transformer Outer periphery is provided with a projection portion（33）, the terminals of the transformer secondary output winding（11）It is arranged in the projection portion.
- 3. flat surface transformer according to claim 2, it is characterised in that：The input fixed setting of the flat surface transformer In on a side in the Transformer Winding portion of the printed circuit board, the test side of the current transformer（22）It is arranged at described On another side in the Transformer Winding portion of printed circuit board；The output end of the flat surface transformer is arranged at the projection portion On, and the output end of the flat surface transformer is connected with the terminals of the transformer secondary output winding.
- 4. flat surface transformer according to claim 1, it is characterised in that：Pass through geometrical clamp between two magnetic core of transformers（12） It is fixed.
- 5. flat surface transformer according to claim 4, it is characterised in that：The quantity that the geometrical clamp is set is three, three Individual geometrical clamp is evenly distributed on the periphery of magnetic core of transformer.
- 6. flat surface transformer according to claim 5, it is characterised in that：Two current transformer cores are consolidated by epoxy glue It is fixed.
- 7. flat surface transformer according to claim 6, it is characterised in that：Described primary winding and the printing Insulating tape is provided between circuit board.
- 8. the flat surface transformer according to any one in claim 1~7, it is characterised in that：The magnetic core of transformer is whole Body is in cylinder.
- 9. flat surface transformer according to claim 8, it is characterised in that：The Transformer Winding portion is circle.
- 10. flat surface transformer according to claim 9, it is characterised in that：The current transformer winding portion is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386480.9U CN207009263U (en) | 2017-04-13 | 2017-04-13 | A kind of flat surface transformer of integrated current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386480.9U CN207009263U (en) | 2017-04-13 | 2017-04-13 | A kind of flat surface transformer of integrated current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009263U true CN207009263U (en) | 2018-02-13 |
Family
ID=61442884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720386480.9U Expired - Fee Related CN207009263U (en) | 2017-04-13 | 2017-04-13 | A kind of flat surface transformer of integrated current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509789A (en) * | 2020-11-26 | 2021-03-16 | 东莞市大忠电子有限公司 | Magnetic device integrating transformer, inductor and mutual inductor |
-
2017
- 2017-04-13 CN CN201720386480.9U patent/CN207009263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509789A (en) * | 2020-11-26 | 2021-03-16 | 东莞市大忠电子有限公司 | Magnetic device integrating transformer, inductor and mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |