CN207250299U - A kind of winding structure of common mode inductance - Google Patents
A kind of winding structure of common mode inductance Download PDFInfo
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- CN207250299U CN207250299U CN201720557378.0U CN201720557378U CN207250299U CN 207250299 U CN207250299 U CN 207250299U CN 201720557378 U CN201720557378 U CN 201720557378U CN 207250299 U CN207250299 U CN 207250299U
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Abstract
The utility model discloses a kind of winding structure of common mode inductance, including toroidal core, the left winding and right winding being wound with the toroidal core, the winding structure of the left winding and right winding mirror image each other, the end of incoming cables of the left winding is located at the bottom of toroidal core, leading-out terminal is located at the top of toroidal core, the left winding includes the lower winding between being wound in the middle part of toroidal core bottom and toroidal core, and the upper winding between being wound in the middle part of toroidal core and at the top of toroidal core, the lower winding and upper winding form for same winding copper wire winding, the leading-out terminal of the winding copper wire is stretched out from the top of toroidal core；Directly stretched out from the top of toroidal core to top coiling, the terminal of winding copper wire in the bottom of toroidal core, it is not necessary to increase plate hanging groove and winding copper wire is fixed again；According to the data in Figure of description 2, for this winding structure in the case of using same core, product impedance can effectively be improved with pervious winding structure by comparing.
Description
Technical field
It the utility model is related to common mode inductance, more particularly to a kind of winding structure of common mode inductance.
Background technology
In circuit engineering, it is necessary to be used to filter common mode using common mode inductance especially in Switching Power Supply and converter technique
Electromagnetic interference signal, the winding mode that existing market mainstream common mode inductance uses is more single, usually using two groups of inductor wires
Circle is wound on same iron core, and in the same side inlet wire, the number of turn and phase are all identical, although such a winding structure can believe common mode
Number certain inhibitory action is played, but effect is often not satisfactory, it is difficult to effectively be improved to impedance, common mode currently on the market
Inductance need to add hanging groove when resistance requirements are higher on the partition plate between two windings, reach the effect for improving impedance.Publication No.
The utility model of " CN204360899U " also discloses that a kind of common mode inductance winding structure, but is carried out using this kind of winding structure
, it is necessary to carry out repeatedly winding in same one side magnetic core, it is necessary to turn back repeatedly, winding structure is complicated during coiling.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model, which provides one kind, need not install plate hanging groove, have
Effect improves product impedance, while reduces turn-to-turn voltage difference, effectively prevents the winding structure of the common mode inductance of turn-to-turn short circuit.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of winding structure of common mode inductance, including toroidal core, the left winding being wound with the toroidal core and it is right around
Mirror image, the end of incoming cables of the left winding are located at the bottom of toroidal core to the winding structure of group, the left winding and right winding each other,
Leading-out terminal is located at the top of toroidal core, and the left winding is included between being wound in the middle part of toroidal core bottom and toroidal core
Lower winding and the upper winding between being wound in the middle part of toroidal core and at the top of toroidal core, the lower winding and upper winding
Formed for same winding copper wire winding, the leading-out terminal of the winding copper wire is stretched out from the top of toroidal core.
Further as such scheme is improved, the lower winding include in the middle part of from toroidal core bottom toward toroidal core around
The lower winding first layer of system and the oppositely wound lower winding second layer of lower winding first layer, with lower winding first layer coiling in the same direction
Lower winding third layer, the upper winding includes in the middle part of the toroidal core toward the upper winding first layer of coiling at the top of toroidal core,
The oppositely wound upper winding second layer with upper winding first layer, the upper winding third layer with upper winding first layer coiling in the same direction, institute
State lower winding first layer, the lower winding second layer, lower winding third layer, upper winding first layer, the upper winding second layer, upper winding the 3rd
The continuous uninterrupted coiling of layer.
Further as such scheme is improved, and the lower winding first layer is wound with 5 circles, the lower winding second layer around
It is formed with 4 circles and divides equally and be wound between the gap of lower winding first layer, the lower winding third layer is wound with 4 circles and divides equally and is wound on
Between the gap of lower winding first layer and the lower winding second layer.
Further as such scheme is improved, and the upper winding first layer is wound with 5 circles, the upper winding second layer around
It is formed with 4 circles and divides equally and be wound between the gap of winding first layer, the upper winding third layer is wound with 4 circles and divides equally and is wound on
Between the gap of upper winding first layer and the upper winding second layer.
The beneficial effects of the utility model：
A kind of winding structure of common mode inductance of the utility model, in the bottom of toroidal core to top coiling, winding copper wire
Terminal directly stretched out from the top of toroidal core, can be directly connected with other elements, it is not necessary to increase plate hanging groove again
Winding copper wire is fixed；According to the data in Figure of description 2, this winding structure is in the situation using same core
Under, product impedance can effectively be improved with pervious winding structure by comparing, and product impedance is reduced without obvious, can effectively improve production
The work efficiency of product.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is the part of the embodiment of the utility model, rather than entirely
Portion's embodiment, those skilled in the art without creative efforts, can also obtain according to these attached drawings
Other designing schemes and attached drawing：
Fig. 1 is the utility model preferred embodiment structure diagram；
Fig. 2 is the utility model preferred embodiment frequency impedance characteristic contrast curve.
Embodiment
Carried out below with reference to the technique effect of the design of embodiment and attached drawing to the utility model, concrete structure and generation
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is the part of the embodiment of the utility model, rather than whole embodiments, the embodiment based on the utility model, the skill of this area
The other embodiment that art personnel are obtained without creative efforts, belongs to the model of the utility model protection
Enclose.
With reference to Fig. 1 and Fig. 2, a kind of winding structure of common mode inductance, including toroidal core 1, is wound with the toroidal core 1
Left winding 2 and right winding 3, the winding structure of the left winding 2 and right winding 3 mirror image each other, the end of incoming cables of the left winding 2
At A in the bottom attached drawing of toroidal core 1, leading-out terminal is located in the top attached drawing of toroidal core 1 at B, and the left winding 2 wraps
Include and be wound on lower winding in 1 middle part attached drawing of 1 bottom of toroidal core and toroidal core between C and from being wound on annular magnetic
Upper winding between the middle part of core 1 and the top of toroidal core 1, the lower winding and upper winding form for same winding copper wire winding,
The leading-out terminal of the winding copper wire is stretched out from the top of toroidal core 1.In the bottom of toroidal core to top coiling, winding copper wire
Terminal directly stretched out from the top of toroidal core, can be directly connected with other elements, it is not necessary to increase plate hanging groove again
Winding copper wire is fixed.
The lower winding include from 1 bottom of toroidal core toward the lower winding first layer 411 of 1 middle part coiling of toroidal core, with
The oppositely wound lower winding second layer 412 of lower winding first layer 411, the lower winding with lower 411 coiling in the same direction of winding first layer
Three layer 413, the upper winding includes the upper winding first layer 511 from the middle part of toroidal core 1 toward 1 top coiling of toroidal core, with
The oppositely wound upper winding second layer 512 of upper winding first layer 511, the upper winding with upper 511 coiling in the same direction of winding first layer
Three layer 513, the lower winding first layer 411, the lower winding second layer 412, lower winding third layer 413, upper winding first layer 511,
The upper winding second layer 512, the continuously uninterrupted coiling of upper winding third layer 513.
The lower winding first layer 411 is wound with 5 circles, and the lower winding second layer 412 is wound with 4 circles and divides equally and is wound on
Between the gap of lower winding first layer 411, the lower winding third layer 413, which is wound with 4 circles and divides equally, is wound on lower winding first layer
411 and the lower winding second layer 412 gap between.The upper winding first layer 511 is wound with 5 circles, the upper winding second layer 512
Be wound with 4 circles and divide equally be wound between the gap of winding first layer 511, the upper winding third layer 513 be wound with 4 circles and
Divide and be wound between the gap of winding first layer 511 and the upper winding second layer 512.
The structure of the structure of right winding 3 and left winding 2 is each other under mirror image, including second time winding first layer 411 ', second
The winding second layer on winding first layer 511 ', second on the winding second layer 412 ', second time winding third layer 413 ', second
Winding third layer 513 ' on 512 ', second, right winding 3 are formed by a second coiling copper wire winding, left winding 2 and right winding 3
Uniformly it is wound on the left and right sides of toroidal core 1.
With reference to the data in Figure of description 2, winding in 2014 is the utility model of Publication No. " CN204360899U "
Winding structure, winding in 2016 is the winding structure of a undisclosed utility model, and winding in 2017 is this patent winding structure,
Same specification magnetic core is subjected to coiling using same winding, records the impedance operator of three kinds of windings of data analysis；It is attached by specification
Fig. 2 understands that the winding Structure Comparison winding structure of 14 years of 16 years is in 100KHz, 200KHz, 300KHz, 500KHz and 800KHz
Have and lifted by a small margin, small elevation is had in the EMC effects of these frequency band annexes.
From the Figure of description winding Structure Comparison of 2, the 17 years winding structure of 16,14 years 100KHz, 300KHz,
1MHz is substantially improved, and has and is obviously improved for the EMC effects of these frequency bands, 400KHz, 800KHz also have by a small margin
Lifting, therefore also have small elevation in the EMC effects of these frequency bands.According to chart, it is apparent that this coiling
For structure in the case of using same core, product impedance, product resistance can effectively be improved with pervious winding structure by comparing
Anti- nothing substantially reduces, and can effectively improve the work efficiency of product, plays more preferable impedance effect.
Above is the preferred embodiment to the utility model is illustrated, but the utility model is created and is not limited to
The embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit
With modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (1)
1. a kind of winding structure of common mode inductance, including toroidal core (1), it is characterised in that：It is wound with the toroidal core (1)
Left winding (2) and right winding (3), the winding structure of the left winding (2) and right winding (3) mirror image each other, the left winding
(2) end of incoming cables is located at the bottom of toroidal core (1), and leading-out terminal is located at the top of toroidal core (1), left winding (2) bag
Include the lower winding between being wound in the middle part of toroidal core (1) bottom and toroidal core (1) and from being wound on toroidal core (1)
Upper winding between at the top of middle part and toroidal core (1), the lower winding and upper winding form for same winding copper wire winding, institute
State the leading-out terminal of winding copper wire to stretch out from the top of toroidal core (1), the lower winding is included from toroidal core (1) bottom toward ring
The lower winding first layer (411) of coiling and the oppositely wound lower winding second of lower winding first layer (411) in the middle part of shape magnetic core (1)
Layer (412), the lower winding third layer (413) with the coiling in the same direction of lower winding first layer (411), the upper winding are included from annular magnetic
It is oppositely wound with upper winding first layer (511) toward the upper winding first layer (511) of coiling at the top of toroidal core (1) in the middle part of core (1)
The upper winding second layer (512), with upper winding first layer (511) in the same direction coiling upper winding third layer (513), the lower winding
First layer (411), the lower winding second layer (412), lower winding third layer (413), upper winding first layer (511), upper winding second
The continuous uninterrupted coiling of layer (512), upper winding third layer (513), the lower winding first layer (411) is wound with 5 circles, under described
The winding second layer (412) is wound with 4 circles and divides equally and is wound between the gap of lower winding first layer (411), the lower winding the 3rd
Layer (413) is wound with 4 circles and divides equally and is wound between the gap of lower winding first layer (411) and the lower winding second layer (412), described
Upper winding first layer (511) is wound with 5 circles, and the upper winding second layer (512) is wound with 4 circles and dividing equally and is wound on winding the
Between the gap of one layer (511), the upper winding third layer (513), which is wound with 4 circles and divides equally, is wound on winding first layer
(511) between the gap of the upper winding second layer (512).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720557378.0U CN207250299U (en) | 2017-05-18 | 2017-05-18 | A kind of winding structure of common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720557378.0U CN207250299U (en) | 2017-05-18 | 2017-05-18 | A kind of winding structure of common mode inductance |
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| Publication Number | Publication Date |
|---|---|
| CN207250299U true CN207250299U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720557378.0U Active CN207250299U (en) | 2017-05-18 | 2017-05-18 | A kind of winding structure of common mode inductance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001402A1 (en) * | 2017-06-27 | 2019-01-03 | 山东中瑞电子股份有限公司 | Emi common-mode inductor of new winding method and winding method therefor |
| CN112435827A (en) * | 2020-11-13 | 2021-03-02 | 临沂昱通新能源科技有限公司 | Structure of high-impedance PFC inductor and processing technology thereof |
| CN113439313A (en) * | 2019-02-18 | 2021-09-24 | 利纳克有限公司 | Common mode choke coil |
| WO2023060488A1 (en) * | 2021-10-13 | 2023-04-20 | 华为数字能源技术有限公司 | Common mode inductor, common mode inductor winding method, and adapter |
-
2017
- 2017-05-18 CN CN201720557378.0U patent/CN207250299U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001402A1 (en) * | 2017-06-27 | 2019-01-03 | 山东中瑞电子股份有限公司 | Emi common-mode inductor of new winding method and winding method therefor |
| CN113439313A (en) * | 2019-02-18 | 2021-09-24 | 利纳克有限公司 | Common mode choke coil |
| CN113439313B (en) * | 2019-02-18 | 2023-08-29 | 利纳克有限公司 | Common Mode Choke |
| CN112435827A (en) * | 2020-11-13 | 2021-03-02 | 临沂昱通新能源科技有限公司 | Structure of high-impedance PFC inductor and processing technology thereof |
| WO2023060488A1 (en) * | 2021-10-13 | 2023-04-20 | 华为数字能源技术有限公司 | Common mode inductor, common mode inductor winding method, and adapter |
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