CN206532684U - The induction structure of CP values can be reduced - Google Patents
The induction structure of CP values can be reduced Download PDFInfo
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- CN206532684U CN206532684U CN201720222414.8U CN201720222414U CN206532684U CN 206532684 U CN206532684 U CN 206532684U CN 201720222414 U CN201720222414 U CN 201720222414U CN 206532684 U CN206532684 U CN 206532684U
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Abstract
The utility model, which is related to, a kind of reduces the induction structure of CP values, including stem body, first coil and the second coil；The first winding area, the second winding area and the 3rd winding area are sequentially provided with described stem body, the two ends of stem body are respectively equipped with first flange and second flange, first flange is provided with the first termination electrode and a three-end electrode, and the second flange is provided with the second termination electrode and the 4th termination electrode.The first isolated area, the second isolated area and the 3rd isolated area that the utility model passes through setting, the overall contact area after being set around on stem body of first coil and the second coil is greatly decreased, and the second winding section and the 5th winding section of second winding area are formed as mutual horizontal winding, further such that the second winding section and the 5th winding section are formed as alternateing the form of configuration level winding, the generation of equivalent parallel capacitance more can be further reduced, the effect for reducing CP values and lifting High frequency filter capabilities response can be reached.
Description
【Technical field】
The utility model be related to it is a kind of reduce the induction structure of CP values, belong to inductors technique field.
【Background technology】
Inductor (Inductor) is one kind of passive electronic component, is used often in electronic product, and it is in electronics electricity
Tool resists curent change inside road, so as to the current value in the noise of filtering circuit, stabilizing circuit, reduction electromagnetic interference, work(
The functions such as rate conversion, but inductor has not reached demand mark for the setting of single winding with correspondence Modern Electronic product at present
It is accurate to be used without applying, so as to develop out various forms of inductors of Multiple coil and Multiple coil winding mode.
In this regard, Chinese patent Granted publication the CN203746604Uth discloses a kind of " common-mode filter ", its
General configuration in No. CN203746604U case shown in Fig. 1, especially within common-mode filter, outer stack is around and inside and outside layer
The coiling of indivedual 15 circles, 1 circle and 15 circles for being divided into three winding areas, and cause to form common-mode filter.
In this technical scheme, though the common-mode filter of many pins can be formed, the winding mode of this inside and outside layer and specific
This number of turn and it is in contact with each other again, no doubt common-mode filter is provided with area of space, this overall winding mode easily forms big parasitism
Electric capacity (parasitic capacitance), or stray capacitance, shunt capacitance, this electric capacity easily cause circuit to disturb, therefore
Parallel equivalent capacitance CP, its value is smaller better.Therefore when common-mode filter or inductor produce high CP values, especially operate on height
During frequency, it will lose the ability of High frequency filter.Therefore, equivalent parallel capacitance CP how is reduced for above-mentioned say, is
Where the technical difficulties of solution.
【Utility model content】
The purpose of this utility model is：Defect and deficiency for prior art are designed and closed there is provided one kind is simple in construction
Reason, it is easy to use it is a kind of reduce the induction structure of CP values, one kind can reduce equivalent parallel capacitance (CP) and lift high frequency
What filter capacity was responded reduces the induction structure of CP values.
To achieve the above object, the technical solution adopted in the utility model is：
It is described in the utility model a kind of to reduce the induction structure of CP values, including stem body, first coil and the second line
Circle；The first winding area, the second winding area and the 3rd winding area, the two ends of stem body are sequentially provided with described stem body
First flange and second flange are respectively equipped with, first flange is provided with the first termination electrode and a three-end electrode, and second method
Orchid is provided with the second termination electrode and the 4th termination electrode.
In the utility model：Described first coil, and corresponding first winding area, the second winding area with
And the 3rd sequentially winding fixes the 3rd of the first winding section, the second winding section of m2 circles and m3 circles of m1 circles respectively on winding area
Winding section；The second described coil, and corresponding first winding area, the second winding area and the 3rd winding area
The 4th winding section, the 5th winding section and the 6th winding section of n3 circles of n2 circles of n1 circles, the m1 circles are fixed in the sequentially winding of upper difference
It is equal to m2+1 circles equal to n1 circles, the n2 circles and the n3 circles is equal to m3-1 circles；Wherein, the first winding section of first winding area and
Between 4th winding section and the second winding section and the 5th winding section of second winding area be provided with the first isolated area, this second around
Set between second winding section and the 5th winding section and the 3rd winding section and the 6th winding section of the 3rd winding area in line region
There are the second isolated area and the 3rd isolated area, first isolated area and the second isolated area are respectively formed in the core with the 3rd isolated area
Opposite side on cylinder.
In the utility model：The first winding section and the 4th winding section of first winding area are formed as being layered on top of each other
Winding, the second winding section and the 5th winding section of second winding area are formed as mutual horizontal winding, and the described the 3rd
3rd winding section of winding area and the 6th winding section are formed as being layered on top of each other winding.
In the utility model：The second winding section and the 5th winding section of second winding area are formed as alternateing
Configuration level winding.
In the utility model：The m1 circles are equal to 19 circles, m2 circles and are equal to 1 circle, m3 circles equal to 11 circles, n1 circles equal to 19
Circle, n2 circles are equal to 2 circles and n3 circles are equal to 10 circles.
After said structure, the utility model has the beneficial effect that：The utility model is simple in construction, reasonable in design, passes through
The first isolated area, the second isolated area and the 3rd isolated area set, first coil and the second coil is greatly decreased is set around core
Overall contact area after on cylinder, and the second winding section and the 5th winding section of second winding area are formed as mutual
Horizontal winding, further such that the second winding section and the 5th winding section are formed as alternateing the form of configuration level winding, more
The generation of equivalent parallel capacitance can be further reduced, reduction equivalent parallel capacitance (CP) can be reached and high frequency filter is lifted
Effect of wave energy force-responsive.
【Brief description of the drawings】
Accompanying drawing described herein is to be further understood for providing to of the present utility model, constitutes one of the application
Point, but do not constitute to it is of the present utility model it is improper limit, in the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of the second winding section of the present utility model and the 5th winding section；
Fig. 3 is the schematic diagram of the first isolated area of the present utility model, the second isolated area and the 3rd isolated area.
In figure：3. stem body；31. the first winding area；32. the second winding area；33. the 3rd winding area；34. first
Flange；35. second flange；4. first coil；41. the first winding section；42. the second winding section；43. the 3rd winding section；5. second
Coil；51. the 4th winding section；52. the 5th winding section；53. the 6th winding section；6. the first isolated area；7. the second isolated area；8. the
Three isolated areas；91. the first termination electrode；92. the second termination electrode；93. three-end electrode；94. the 4th termination electrode.
【Embodiment】
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, illustrative examples therein with
And illustrate only to be used for explaining the utility model, but be not intended as limiting of the present utility model.
As shown in figure 1, a kind of reduce the induction structure of CP values, including stem body 3, the coil 5 of first coil 4 and second,
The stem body 3 can be square column or cylindrical shape, but be not limited system.On the stem body 3 sequentially provided with the first winding area 31,
Second winding area 32 and the 3rd winding area 33, the two ends of the stem body 3 are each extended over provided with the method for first flange 34 and second
Orchid 35.In the present embodiment, the first flange 34 is provided with the first termination electrode 91 and three-end electrode 93, and the second flange 35
It is provided with the second termination electrode 92 and the 4th termination electrode 94.First coil 4 and corresponding first winding area 31, the second coiling
The first winding section 41 of m1 circles, the and of the second winding section 42 of m2 circles are fixed in sequentially winding to the winding area 33 of region 32 and the 3rd respectively
3rd winding section 43 of m3 circles.Meanwhile, the second coil 5 and corresponding first winding area 31, the and of the second winding area 32
The adjacent first coil 4 of 3rd winding area 33 respectively sequentially winding fix the 4th winding section 51 of n1 circles, n2 circles the 5th around
Line portion 52 and the 6th winding section 53 of n3 circles.
Wherein, the first winding section 41 and the 4th winding section 51 of first winding area 31 are formed as being layered on top of each other winding,
To reduce (use) volume of stem body 3, the second winding section 42 of second winding area 32 and the 5th winding section 52 are formed as
Mutual horizontal winding (as shown in Figure 2).It is preferred that the second winding section 42 of second winding area 32 and the 5th winding section 52
Be formed as alternateing configuration level winding, the second winding section 42 of its first coil 4 and the 5th winding section 52 of the second coil 5
The mode being alternately arranged as shown in figure 1, but being not limited system.Except the second winding section 42 and the 5th winding section 52 itself with
Horizontally arranged winding can be allowed to reduce coiling contact area between the two, more across the first winding section 41 and the 4th winding section 51
The equivalent parallel electric capacity produced between the second winding section 42 and the 5th winding section 52 is because relative to the coil of first coil 4 and second
5 both and uniformly produce, so the impedance unbalance of the coil 5 of first coil 4 and second can be suppressed, therefore can effectively drop
Low overall equivalent parallel capacitance CP, therefore High frequency filter response can be effectively lifted, and low frequency filtering response is also identical, is made
Obtaining the utility model turns into the common-mode filter or inductor of high-quality.3rd winding section 43 of the 3rd winding area 33 and the again
Six winding sections 53 are formed as being layered on top of each other winding, are also (use) volume of diminution stem body 3.
As shown in figure 3, the first winding section 41 of first winding area 31 and the 4th winding section 51 and second coiling
The first isolated area 6, the of second winding area 32 are provided between second winding section 42 in region 32 and the 5th winding section 52
It is provided between two winding sections 42 and the 5th winding section 52 and the 3rd winding section 43 and the 6th winding section 53 of the 3rd winding area 33
Second isolated area 7 and the 3rd isolated area 8, the first isolated area 6 and the second isolated area 7 are respectively formed in this with the 3rd isolated area 8
Opposite side on stem body 3.The setting energy significant effective of first isolated area 6, the second isolated area 7 and the 3rd isolated area 8
The contact area after the coil 5 of first coil 4 and second is set around on stem body 3 between the two is greatly decreased, it is to avoid produce extra
Equivalent parallel electric capacity, can effectively reduce overall equivalent parallel capacitance CP.
In the present embodiment, described m1 circles are equal to n1 circles, and described n2 circles are equal to m2+1 circles and described n3 circles are equal to
M3-1 circles, and, when m1 circles be equal to 19 circles, m2 circles be equal to 1 circle, m3 circles be equal to 11 circles, n1 circles be equal to 19 circles, n2 circles be equal to 2 circles and
N3 circles are equal to 10 circles (coil 5 of first coil 4 and second in such as Fig. 1), and obtain the equivalent parallel of the reduction entirety of optimum state
Capacitance, but it is not limited system.
In summary, therefore the utility model sets the first isolated area 6, the second isolated area 7 and the 3rd isolated area 8, significantly
Reduce the overall contact area after being set around on stem body 3 of the coil 5 of first coil 4 and second, and the second winding area
32 the second winding section 42 and the 5th winding section 52 are formed as mutual horizontal winding, or further such that the second winding section 42 and the
Five winding sections 52 are formed as alternateing the form of configuration level winding, more further can effectively reduce equivalent parallel capacitance
Generation.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent claim
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent claim.
Claims (6)
1. a kind of reduce the induction structure of CP values, it is characterised in that：Including stem body, first coil and the second coil；It is described
Stem body on sequentially be provided with the first winding area, the second winding area and the 3rd winding area, the two ends of stem body are set respectively
There are first flange and second flange, first flange is provided with the first termination electrode and a three-end electrode, and the second flange and set
There are the second termination electrode and the 4th termination electrode.
2. according to claim 1 reduce the induction structure of CP values, it is characterised in that：Described first coil, and with
Corresponding first winding area, the second winding area and the 3rd winding area on respectively sequentially winding fix m1 circles first
3rd winding section of winding section, the second winding section of m2 circles and m3 circles；
Divide on the second described coil, and corresponding first winding area, the second winding area and the 3rd winding area
The 4th winding section, the 5th winding section and the 6th winding section of n3 circles of n2 circles of n1 circles are not fixed in sequentially winding, and the m1 circles are equal to
N1 circles, the n2 circles are equal to m2+1 circles and the n3 circles are equal to m3-1 circles；Wherein, the first winding section and the 4th of first winding area
The first isolated area, second winding region are provided between winding section and the second winding section and the 5th winding section of second winding area
Provided with the between second winding section in domain and the 3rd winding section and the 6th winding section of the 5th winding section and the 3rd winding area
Two isolated areas and the 3rd isolated area, first isolated area and the second isolated area are respectively formed in the stem body with the 3rd isolated area
On opposite side.
3. according to claim 2 reduce the induction structure of CP values, it is characterised in that：The of first winding area
One winding section and the 4th winding section are formed as being layered on top of each other winding, the second winding section of second winding area and the 5th coiling
Portion is formed as mutual horizontal winding, and the 3rd winding section and the 6th winding section of described the 3rd winding area are formed as phase alternating layers
Lap wound is set.
4. according to claim 3 reduce the induction structure of CP values, it is characterised in that：The of second winding area
Two winding sections and the 5th winding section are formed as alternateing configuration level winding.
5. reduce the induction structure of CP values according to Claims 2 or 3 or 4, it is characterised in that：The m1 circles are equal to 19
Circle, m2 circles are equal to 1 circle, m3 circles and are equal to 19 circles, n2 circles equal to 2 circles and n3 circles equal to 10 circles equal to 11 circles, n1 circles.
6. according to claim 1 reduce the induction structure of CP values, it is characterised in that：The stem body is square column or circle
Post shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222414.8U CN206532684U (en) | 2017-03-09 | 2017-03-09 | The induction structure of CP values can be reduced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222414.8U CN206532684U (en) | 2017-03-09 | 2017-03-09 | The induction structure of CP values can be reduced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206532684U true CN206532684U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720222414.8U Active CN206532684U (en) | 2017-03-09 | 2017-03-09 | The induction structure of CP values can be reduced |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033929A (en) * | 2018-01-05 | 2019-07-19 | Tdk株式会社 | Common-mode filter |
| JP2019121791A (en) * | 2018-01-05 | 2019-07-22 | Tdk株式会社 | Common mode filter |
| US11605485B2 (en) * | 2018-01-05 | 2023-03-14 | Tdk Corporation | Common mode filter |
-
2017
- 2017-03-09 CN CN201720222414.8U patent/CN206532684U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033929A (en) * | 2018-01-05 | 2019-07-19 | Tdk株式会社 | Common-mode filter |
| JP2019121791A (en) * | 2018-01-05 | 2019-07-22 | Tdk株式会社 | Common mode filter |
| JP7204468B2 (en) | 2018-01-05 | 2023-01-16 | Tdk株式会社 | common mode filter |
| US11563415B2 (en) | 2018-01-05 | 2023-01-24 | Tdk Corporation | Common mode filter |
| US11605485B2 (en) * | 2018-01-05 | 2023-03-14 | Tdk Corporation | Common mode filter |
| JP7487285B2 (en) | 2018-01-05 | 2024-05-20 | Tdk株式会社 | Common Mode Filters |
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