CN207425595U - A kind of network transformer structure - Google Patents
A kind of network transformer structure Download PDFInfo
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- CN207425595U CN207425595U CN201721089274.8U CN201721089274U CN207425595U CN 207425595 U CN207425595 U CN 207425595U CN 201721089274 U CN201721089274 U CN 201721089274U CN 207425595 U CN207425595 U CN 207425595U
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Abstract
The utility model discloses a kind of network transformer structure, pass through the new design of the structure to magnetic core, making on multiple I-shaped magnetic cores of integral type tool, there are three cores, for winding transformer coil, the 3rd core is used to wind common mode choke coil for wherein the first core and the second core, so as to, transformer and common mode choke is made to merge on a magnetic core, it can substitute over two magnetic cores, save cost, save the space of circuit board.
Description
Technical field
The utility model is related to magnetic core field technologies, refer in particular to a kind of network transformer structure.
Background technology
China the is refer to disclosed in 23 days November in 2016 with the relevant prior art of the utility model
CN106160696A patent applications, it discloses the networks including coiling toroidal transformer and coiling annular common mode choke
Filter module, wherein transformer and common mode choke have each independent core structure, and coiling is inconvenient when causing to produce, group
It is more to fill step, production cost is high, and two magnetic core separation can occupy more circuit board spaces.
Utility model content
In view of this, in view of the existing deficiencies of the prior art, its main purpose is to provide a kind of network and becomes the utility model
Depressor structure makes transformer and common mode choke merge on a magnetic core, can substitute over two magnetic cores, saving cost,
Save the space of circuit board.
To achieve the above object, the utility model is using following technical solution：
A kind of network transformer structure, including
Magnetic core module, which includes plain film magnetic core and multiple I-shaped magnetic cores of integral type, the plurality of I-shaped
Magnetic core is installed on plain film magnetic core, includes first flange, transformer jube, second flange, the 3rd flange, in first flange
Top both sides are equipped with pad A and pad E, pad B and pad F are equipped in the top both sides of transformer jube, in second flange
Top both sides are equipped with pad C and pad G, are equipped with pad D and pad H in the top both sides of the 3rd flange, the first flange is with becoming
The first core is equipped between depressor jube, the second core, second method are equipped between the transformer jube and second flange
The 3rd core is equipped between blue and the 3rd flange；
Transformer coil, the transformer coil are made of primary coil and secondary coil, the primary coil and secondary
Coil winding is in the first core and the second core；The input terminal of the primary coil is welded in pad A, in primary coil
Heart tap is welded in pad B, and the output terminal of primary coil is welded in pad C, and the input terminal of the secondary coil is welded in pad
E, the centre cap of secondary coil are welded in pad F；
Common mode choke coil, the common mode choke coil include the reversed first coil of the number of turn and all identical coiling of phase
With the second coil, in the 3rd core, first the end of a thread of first coil is welded in pad for the first coil and the second coil winding
G, second the end of a thread of first coil are welded in pad D, and first the end of a thread of second coil is connected with the output terminal of secondary coil, the
Second the end of a thread of two coil is welded in pad H；The common mode choke coil（30）Further comprise there is tertiary coil（33）, should
Tertiary coil（33）With first coil（31）, the second coil（32）The 3rd core (127) is wound in together；
The pad E is connected with pad G by external conductive devices, and the input terminal and common mode for making transformer secondary coil are gripped
First the end of a thread of stream circle first coil is conducted.
The utility model has clear advantage and advantageous effect compared with prior art, specifically, by above-mentioned technology
Scheme is understood, by the new design of the structure to magnetic core, makes to have on multiple I-shaped magnetic cores of integral type there are three core,
In the first core and the second core for winding transformer coil, the 3rd core for winding common mode choke coil,
So as to which transformer and common mode choke be made to merge on a magnetic core, can substitute over two magnetic cores, save cost, saving
The space of circuit board.
More clearly to illustrate the structure feature of the utility model and effect, come below in conjunction with the accompanying drawings with specific embodiment pair
The utility model is described in detail.
Description of the drawings
Fig. 1 is the overall structure assembling schematic diagram of the first embodiment of the utility model.
Fig. 2 is the exploded view of the first embodiment of the utility model.
Fig. 3 is the spooling step figure of the first embodiment of the utility model.
Fig. 4 is the circuit diagram of the first embodiment of the utility model.
Fig. 5 is the overall structure assembling schematic diagram of the second embodiment of the utility model.
Fig. 6 is the exploded view of the second embodiment of the utility model.
Fig. 7 is the circuit diagram of the second embodiment of the utility model.
Fig. 8 is the overall structure assembling schematic diagram of the 3rd embodiment of the utility model.
Fig. 9 is the exploded view of the 3rd embodiment of the utility model.
Attached drawing identifier declaration：
10th, magnetic core module 11, plain film magnetic core
12nd, I-shaped magnetic core 121, first flange
122nd, transformer jube 123, second flange
124th, the 3rd flange 125, the first core
126th, the second core 127, the 3rd core
128th, crossed beam trunking 20, transformer coil
21st, the input terminal of primary coil 211, primary coil
212nd, the centre cap 213 of primary coil, the output terminal of primary coil
22nd, the input terminal of secondary coil 221, secondary coil
222nd, the centre cap 223 of secondary coil, the output terminal of secondary coil
30th, common mode choke coil 31, first coil
311st, first the end of a thread 312 of first coil, second the end of a thread of first coil
32nd, first the end of a thread of the second coil 321, the second coil
322nd, second the end of a thread 33, the tertiary coil of the second coil
331st, first the end of a thread 332 of tertiary coil, second the end of a thread of tertiary coil
40th, conductive devices.
Specific embodiment
It refer to shown in Fig. 1 to Fig. 4, that show the concrete structures of the first embodiment of the utility model, are a kind of
Network transformer structure, including magnetic core module 10, transformer coil 20, common mode choke coil 30,20 He of transformer coil
Common mode choke coil 30 is wound on magnetic core module 10, and the function of transformer and common mode choke is completed by a part.
Wherein, which includes plain film magnetic core 11 and multiple I-shaped magnetic cores 12 of integral type, the plurality of I-shaped
Shape magnetic core 12 is installed on plain film magnetic core 11, includes first flange 121, transformer jube 122, second flange 123, the 3rd method
Orchid 124, pad A and pad E is equipped in the top both sides of first flange 121, and weldering is equipped in the top both sides of transformer jube 122
Disk B and pad F is equipped with pad C and pad G in the top both sides of second flange 123, is set in the top both sides of the 3rd flange 124
There are pad D and pad H, the first core 125, the transformer jube are equipped between the first flange 121 and transformer jube 122
The second core 126 is equipped between 122 and second flange 123, the 3rd is equipped between 123 and the 3rd flange 124 of second flange
Core 127.
The transformer coil 20 is made of primary coil 21 and secondary coil 22, the primary coil 21 and secondary coil
22 are wound in the first core 125 and the second core 126；The input terminal 211 of the primary coil is welded in pad A, primary
The centre cap 212 of coil is welded in pad B, and the output terminal 213 of primary coil is welded in pad C, the secondary coil it is defeated
Enter end 221 and be welded in pad E, the centre cap 222 of secondary coil is welded in pad F.
The common mode choke coil 30 includes reversed 31 and second coil of first coil of the number of turn and all identical coiling of phase
32, which is wound in the 3rd core 127, and first the end of a thread 311 of first coil is welded in weldering
Disk G, second the end of a thread 312 of first coil are welded in pad D, the output of first the end of a thread 321 and secondary coil of second coil
End 223 is connected, and second the end of a thread 322 of the second coil is welded in pad H.
The pad E is connected with pad G by external conductive devices 40, make the input terminal 221 of transformer secondary coil with
First the end of a thread 311 of common mode choke first coil is conducted.In this way, first flange 121 to formation between second flange 123 becomes
Depressor forms common mode choke between 123 to the 3rd flange 124 of second flange.
By this new Magnetic Core Design, transformer and common mode choke is made to merge on a magnetic core, can be substituted
Two magnetic cores are removed, save cost, save the space of circuit board.In addition, this new core structure is simple, making easy to process,
Production cost is low.
More specifically, the conducting wire between the input terminal 211 of the primary coil and centre cap 212 is wound in the first volume
Core 125, the conducting wire between the centre cap 212 of primary coil and output terminal 213 are wound in the second core 126；Described time
Conducting wire between the grade input terminal 221 of coil and centre cap 222 is wound in the first core 125, and the center of secondary coil is taken out
Conducting wire between first 222 and output terminal 223 is wound in the second core 126.
In the present embodiment, conductive devices 40 between the pad E and pad G are the pcb board for being carved with circuit, Huo Zhewei
Conducting wire is other conductive devices.When the conductive devices select conducting wire, the conducting wire is from 122 front side wall of transformer jube
Crossed beam trunking 128 pass through.In this way, the part stretched out during conducting wire transition can be contained in these crossed beam trunkings 128, without departing from magnetic core
Outside, wiring is clean and tidy, and will not occupy extra space.
The first flange 121, transformer jube 122, second flange 123, the 3rd flange 124 both sides side wall on set
There are crossed beam trunking 128, first the end of a thread 321 of the output terminal 223 of the transformer secondary coil and the second coil of common mode choke
The crossed beam trunking 128 of connecting position from 123 front side wall of second flange passes through.
Next, substantially introducing the production method of aforementioned network transformer device structure, following steps are mainly included.
（1）Preparation process：
Prepare plain film magnetic core 11, multiple I-shaped magnetic core 12, first conducting wires, Article 2 conducting wire, Article 3 of integral type
Conducting wire, wherein, first conducting wire is as transformer 21, and Article 2 conducting wire is simultaneously as 22 He of transformer secondary coil
Second coil 32 of common mode choke, first coil 31 of the Article 3 conducting wire as common mode choke.
（2）Spooling step：
One end of first conducting wire is first defined as to the input terminal 211 of transformer, and is welded in pad A,
One end of Article 2 conducting wire is defined as to the input terminal 221 of transformer secondary coil, and is welded in pad E；
Then first conducting wire and Article 2 conducting wire are wound into several circles along the first core 125, when in first coil 31
After portion has been wound, first conducting wire extends to pad B, and is welded in pad B, and first conducting wire is extended to pad by this product
The part of B is defined as the centre cap 212 of transformer；Article 2 conducting wire extends to pad F, and is welded in pad
F, the part that Article 2 conducting wire is extended to pad F by this product are defined as the centre cap 222 of transformer secondary coil；
Then first conducting wire and Article 2 conducting wire wind several circles along the second core 126, when in the second core 126
After the completion of winding, first conducting wire extends to pad C, and is welded in pad C, and so far, first conducting wire is rolled to be finished；
Article 2 conducting wire extends to the crossed beam trunking 128 of 123 front side wall of second flange, and Article 2 conducting wire is located at crossed beam trunking 128 by this product
Position be defined as transformer secondary coil output terminal 223 and simultaneously as common mode choke the second coil first
The end of a thread 321；
Followed by, one end of Article 3 conducting wire is defined as to first the end of a thread 311 of the first coil of common mode choke, and
Pad G is welded in, Article 2 conducting wire remainder and Article 3 conducting wire are then wound into several circles along the 3rd core 127；
After the completion of being wound in the 3rd core 127, the end of Article 2 conducting wire extends to pad H, and is welded in pad H, so far,
Article 2 conducting wire is rolled to be finished；The end of Article 3 conducting wire extends to pad D, and is welded in pad D, so far, the 3rd
Bar conducting wire is rolled finishes；
Finally, by external conductive devices 40 pad E is made to be connected with pad G, makes the input terminal 221 of transformer secondary coil
It is conducted with first the end of a thread 311 of common mode choke first coil.
（3）11 laminating step of plain film magnetic core：
Plain film magnetic core 11 is bonded in multiple I-shaped 12 bottoms of magnetic core of integral type, to form closed magnetic circuit, in this way, the
One flange 121 forms common mode chokes to transformer is formed between second flange 123 between 123 to the 3rd flange 124 of second flange
Circle.
Wherein, the conductive devices 40 select conducting wire, and the crossed beam trunking 128 of the conducting wire from 122 front side wall of transformer jube is worn
It crosses.
Using this core structure, 8 pads are formed on magnetic core, three lines is only needed to participate in coiling, centre welding is follow-up
Continuous coiling need not reposition after intermediate cut-out, you can realize the welding times of network transformer as shown in Figure 4, around
Line processing procedure is simple, and the requirement to coil winding machine is low, and winding efficiency is high, and the production method making easy to process of the utility model is suitable for
Automated production, very simple is convenient when follow-up plain film magnetic core is bonded, and reduces production cost.
It refer to shown in Fig. 5 to Fig. 7, that show the concrete structures of the second embodiment of the utility model, are a kind of
Network transformer structure, the structure and first embodiment of the present embodiment are essentially identical, including magnetic core module 10, transformer coil
20th, common mode choke coil 30, the transformer coil 20 and common mode choke coil 30 are wound on same magnetic core module 10,
The function of transformer and common mode choke is completed by a part.
The structure of the present embodiment with second embodiment the difference is that：This second embodiment is on the basis of 8 pads
Increase a pad O namely be that one shares 9 pads.And common mode choke coil 30 increases a coiling, is referred to as the
Three-winding 33.Wherein, pad O is arranged on the 3rd flange 124, between pad D and pad H.The tertiary coil 33
The 3rd core 127 is wound in first coil 31,32 three of the second coil, first the end of a thread 331 of tertiary coil is welded in
Pad F, second the end of a thread 332 of tertiary coil are welded in pad O.In the present embodiment, due to pad F to the 3rd core 127 it
Between have a distance, therefore the crossed beam trunking 128 of the respective wire of tertiary coil 33 from 123 side of second flange passes through.Pass through this
Kind design, common mode choke coil 30 have three-wire output, and output point is respectively pad H, pad O, pad D, is met general
Three-wire system wiring requirement, convenient for connecting with existing Universal connection head.The equivalent circuit of the network transformer of this second embodiment
As shown in Figure 7.
The production method of the network transformer of this second embodiment is substantially identical with first embodiment, the difference is that increasing
Add the winding method of tertiary coil 33, therefore,（1）, it is necessary to increase a conducting wire during preparation process, it is referred to as Article 4 more
Conducting wire, Article 4 conducting wire is as tertiary coil 33.（2）It is as follows for the winding method of Article 4 conducting wire during spooling step：The
One end of four conducting wires is defined as first the end of a thread 331 of the tertiary coil of common mode choke, and the other end is defined as tertiary coil
Second the end of a thread 332, first the end of a thread 331 of the tertiary coil are welded in pad F, and the conducting wire close to pad F is from 123 side of second flange
The crossed beam trunking 128 on side passes through, and the center section of Article 4 conducting wire is wound on the 3rd core 127, the second line of tertiary coil
First 332 are welded in pad O, and so far, Article 4 conducting wire is rolled to be finished, and forms tertiary coil 33.（3）Plain film magnetic core 11
Identical with first embodiment during laminating step, details are not described herein.
It refer to shown in Fig. 8 to Fig. 9, that show the concrete structures of the 3rd embodiment of the utility model, are a kind of
Network transformer structure, the structure and second embodiment of the present embodiment are essentially identical, the difference is that：Magnetic core module 10 increases
Pad P namely it is, altogether with 10 pads.First the end of a thread 331 of tertiary coil is welded in pad P, and the of tertiary coil
Two the end of a thread 332 are welded in pad O, and reusing conductive devices 40 makes pad P be connected with pad F, for example, conductive devices 40 can be
The pcb board of circuit is carved with, can equally realize as identical function such as second embodiment.
In conclusion the design focal point of the utility model is, by the new design of the structure to magnetic core, make integral type
Tool is there are three core on multiple I-shaped magnetic cores 12, wherein the first core 125 and the second core 126 are used to wind transformation
Device coil 20, the 3rd core 127 is for winding common mode choke coil 30, so as to merge transformer and common mode choke
On a magnetic core, two magnetic cores can be substituted over, save cost, save the space of circuit board.
The above descriptions are merely preferred embodiments of the present invention, and not the technical scope of the utility model is made
Any restrictions, therefore every any trickle amendment made according to the technical essence of the utility model to above example, equivalent change
Change and modification, in the range of still falling within technical solutions of the utility model.
Claims (7)
1. a kind of network transformer structure, it is characterised in that：Including
Magnetic core module（10）, the magnetic core module include plain film magnetic core（11）With multiple I-shaped magnetic cores of integral type（12）, this is more
A I-shaped magnetic core is installed on plain film magnetic core, includes first flange（121）, transformer jube（122）, second flange
（123）, the 3rd flange（124）, pad A and pad E is equipped in the top both sides of first flange, in the top of transformer jube two
Side is equipped with pad B and pad F, pad C and pad G is equipped in the top both sides of second flange, in the top both sides of the 3rd flange
Equipped with pad D and pad H, the first core is equipped between the first flange and transformer jube（125）, the transformer jube with
The second core is equipped between second flange（126）, the 3rd core is equipped between the second flange and the 3rd flange（127）；
Transformer coil（20）, which is by primary coil（21）And secondary coil（22）It forms, the primary line
Circle and secondary coil are wound in the first core and the second core；The input terminal of the primary coil（211）It is welded in pad
A, the centre cap of primary coil（212）It is welded in pad B, the output terminal of primary coil（213）It is welded in pad C, described time
The input terminal of grade coil（221）It is welded in pad E, the centre cap of secondary coil（222）It is welded in pad F；
Common mode choke coil（30）, which includes the number of turn and the reversed first coil of all identical coiling of phase
（31）With the second coil（32）, the first coil and the second coil winding are in the 3rd core, first the end of a thread of first coil
（311）It is welded in pad G, second the end of a thread of first coil（312）Pad D is welded in, first the end of a thread of second coil（321）
It is connected with the output terminal of secondary coil, second the end of a thread of the second coil（322）It is welded in pad H；The common mode choke coil
（30）Further comprise there is tertiary coil（33）, the tertiary coil（33）With first coil（31）, the second coil（32）Together around
It is formed on the 3rd core (127)；
The pad E and pad G pass through external conductive devices（40）It is connected, makes the input terminal of transformer secondary coil（221）With
First the end of a thread of common mode choke first coil（311）It is conducted.
2. a kind of network transformer structure according to claim 1, it is characterised in that：3rd flange（124）Upper increasing
Equipped with pad O, first the end of a thread of tertiary coil（331）It is welded in pad F, second the end of a thread of tertiary coil（332）It is welded in
Disk O.
3. a kind of network transformer structure according to claim 2, it is characterised in that：The tertiary coil（33）In,
Conducting wire between pad F and the 3rd core (127) passes through second flange（123）The crossed beam trunking of side（128）.
4. a kind of network transformer structure according to claim 2, it is characterised in that:The second flange（123）Upper increasing
If pad P, first the end of a thread of tertiary coil（331）It is welded in pad P, second the end of a thread of tertiary coil（332）It is welded in pad
O；Pass through conductive devices between pad P and pad O（40）It is connected.
5. a kind of network transformer structure according to claim 4, it is characterised in that：Between the pad E and pad G
Conductive devices（40）For conducting wire, the conducting wire is from transformer jube（122）The crossed beam trunking of front side wall（128）It passes through；The pad P with
Conductive devices between pad O are the pcb board for being carved with circuit.
6. a kind of network transformer structure according to claim 1, it is characterised in that：The first flange（121）, transformation
Device jube（122）, second flange（123）, the 3rd flange（124）Two side be equipped with crossed beam trunking（128）, the transformer
The output terminal of grade coil（223）With first the end of a thread of the second coil of common mode choke（321）Connecting position is from second flange
（123）The crossed beam trunking of front side wall（128）It passes through.
7. a kind of network transformer structure according to claim 1, it is characterised in that：The input terminal of the primary coil
（211）With primary coil centre cap（212）Between conducting wire be wound in the first core（125）, the center of primary coil is taken out
Head（212）With primary coil output terminal（213）Between conducting wire be wound in the second core（126）；The secondary coil it is defeated
Enter end（221）With secondary coil centre cap（222）Between conducting wire be wound in the first core（125）, in secondary coil
Heart tap（222）Conducting wire between output terminal is wound in the second core（126）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089274.8U CN207425595U (en) | 2017-08-29 | 2017-08-29 | A kind of network transformer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721089274.8U CN207425595U (en) | 2017-08-29 | 2017-08-29 | A kind of network transformer structure |
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| Publication Number | Publication Date |
|---|---|
| CN207425595U true CN207425595U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721089274.8U Expired - Fee Related CN207425595U (en) | 2017-08-29 | 2017-08-29 | A kind of network transformer structure |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735475A (en) * | 2018-07-20 | 2018-11-02 | 台庆精密电子（昆山）有限公司 | integrated coil structure |
| CN109036799A (en) * | 2018-08-01 | 2018-12-18 | 台庆精密电子（昆山）有限公司 | integrated multi-inductance element |
| CN117410075A (en) * | 2023-10-23 | 2024-01-16 | 广东美信科技股份有限公司 | Magnetic integrated chip inductor |
-
2017
- 2017-08-29 CN CN201721089274.8U patent/CN207425595U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735475A (en) * | 2018-07-20 | 2018-11-02 | 台庆精密电子（昆山）有限公司 | integrated coil structure |
| TWI655647B (en) * | 2018-07-20 | 2019-04-01 | 西北臺慶科技股份有限公司 | Integrated coil structure |
| CN109036799A (en) * | 2018-08-01 | 2018-12-18 | 台庆精密电子（昆山）有限公司 | integrated multi-inductance element |
| TWI650782B (en) * | 2018-08-01 | 2019-02-11 | 西北臺慶科技股份有限公司 | Integrated multi-inductor component |
| CN109036799B (en) * | 2018-08-01 | 2024-02-23 | 庆邦电子元器件(泗洪)有限公司 | Integrated multi-inductance element |
| CN117410075A (en) * | 2023-10-23 | 2024-01-16 | 广东美信科技股份有限公司 | Magnetic integrated chip inductor |
| CN117410075B (en) * | 2023-10-23 | 2024-04-12 | 广东美信科技股份有限公司 | Magnetic integrated chip inductor |
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Granted publication date: 20180529 Termination date: 20190829 |