CN208045280U - Inductor and common mode inductor - Google Patents
Inductor and common mode inductor Download PDFInfo
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- CN208045280U CN208045280U CN201721819216.6U CN201721819216U CN208045280U CN 208045280 U CN208045280 U CN 208045280U CN 201721819216 U CN201721819216 U CN 201721819216U CN 208045280 U CN208045280 U CN 208045280U
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- winding
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- common mode
- magnetic core
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Abstract
The utility model discloses an inductance and common mode inductance, this inductance include magnetic core 1 and winding 2 of coiling on magnetic core 1 to be provided with two at least taps 3 on winding 2. The embodiment of the utility model provides an inductance and common mode inductance owing to set up a plurality of 3 of taking a percentage on winding 2, make 3 of taking a percentage that can put through on the application occasion free choice winding 2 according to the inductance, with the realization to the selection of coil turns on winding 2, and then realize the selection to output inductance value, solved among the prior art because the fixed unchangeable problem of output inductance value that causes of coil turns of the winding that constitutes the inductance, enlarged the application scope of inductance.
Description
Technical field
The utility model is related to inductors technique fields, and in particular to a kind of inductance and common mode inductance.
Background technology
(Electromagnetic Interference electromagnetism is dry for electromagnetic interference caused by order to solve power inverter
Disturb, abbreviation EMI) problem, widespread practice is to use filter.Annular common mode inductance as device important in electromagnetic interface filter,
The common mode interference signal for entering power grid from power inverter can be effectively reduced.Currently, the inductance value of common mode inductance used exists in the industry
It has been determined that this is because the coil turn of winding is fixed on common mode inductance at the beginning of design.But different application scenarios can
It can use the common mode inductance of different sensibility reciprocals or even the sensibility reciprocal needed for zero curve, firewire also differs, this just needs to use different shaped
Number common mode inductance, cause the model of common mode inductance varied, it is complex when safeguarding.
Utility model content
In view of this, the utility model embodiment provides a kind of inductance and common mode inductance, it is electric in the prior art to solve
The immutable problem of outputting inductance amount caused by being fixed due to the coil turn of winding in sense or common mode inductance.
According in a first aspect, the utility model embodiment provides a kind of inductance, including magnetic core and it is wound on the magnetic core
On winding, be provided at least two taps on the winding.
Further, the tap includes interconnecting piece, lead and leading-out terminal, wherein the interconnecting piece and leading-out terminal point
The both ends of lead are located at, the lead is connected to by interconnecting piece on the core for the coil for constituting the winding.
Further, the winding is at least two, is provided at least one of at least two windings winding (2)
At least two taps.
According to second aspect, the utility model embodiment provides a kind of common mode inductance, including magnetic core and is wound on institute
At least a pair of of winding on magnetic core is stated, at least two taps are provided at least one of described at least a pair of of winding winding.
Further, the tap includes interconnecting piece, lead and leading-out terminal, wherein the interconnecting piece and leading-out terminal point
The both ends of lead are located at, the lead is connected to by interconnecting piece on the core for the coil for constituting the winding.
Further, the magnetic core is toroidal core.
Further, at least a pair of of winding includes the winding and the second winding, the winding and/or second around
At least two taps are provided in group.
Further, the installation position of tap is opposite with the installation position of tap on second winding on the winding
Claim.
Further, the winding and the second winding are symmetricly set on the magnetic core, the winding and the second winding
Coil turn is identical and coiling direction is opposite.
According to the third aspect, the utility model embodiment provides a kind of electronic device, including first aspect embodiment institute
The inductance stated, alternatively, including the common mode inductance described in second aspect embodiment.
The inductance and common mode inductance that the utility model embodiment provides, due to being provided with multiple taps on winding so that
It can be according to the tap connected on the application scenario unrestricted choice winding of inductance, to realize the choosing to winding coil the number of turns
It selects, and then realizes the selection to outputting inductance value, solve in the prior art since the coil turn for the winding for constituting inductance is solid
The immutable problem of fixed caused outputting inductance amount, expands the scope of application of inductance.Further, the utility model is real
The inductance and common mode inductance that example offer is provided, due to provided with the tap being made of interconnecting piece, lead and leading-out terminal, will constitute around
The coil of group is drawn outside inductance, and the selection to the coil turn of winding is realized, that is, the alternative for realizing inductance value is defeated
Go out.Further, the inductance and common mode inductance that the utility model embodiment provides are led to due to the multiple windings of coiling on magnetic core
It crosses and gates different winding or winding combination, different inductance values can be exported.In addition, by adding pumping on certain windings
Head can further enrich the inductance value of output, expand the scope of application of inductance.Further, the utility model embodiment
The common mode inductance of offer constitutes the variable multi-tap annular common mode inductance of inductance value due to the use of toroidal core, is suitable for needing
Annular common mode inductance is used to realize the workplace of electromagnetism interference, such as computer motherboard.Since two windings being wound on together
On one magnetic core, coil turn and phase are all identical, but coiling direction is opposite so that when the normal current in circuit flows through common mode electricity
When sense, normal current generates in the inductance coil of same-phase coiling reversed magnetic field and is cancelled out each other, and normal current is only by line
It encloses the influence of resistance and common mode inductance can be flowed through；It is in the same direction due to common mode current when there is common mode current to flow through common mode inductance
Property, understand the induction reactance that generate magnetic field in the same direction in coil and increase coil, coil is made to show as high impedance, with this attenuation common-mode electricity
Stream, realizes the purpose of electromagnetism interference.In addition, the common mode inductance that the utility model embodiment provides, due on two windings
The symmetrical multiple taps of setting so that can gate the coil turn of identical quantity, realization pair when use on two windings
The preferable inhibition of common mode current.
Description of the drawings
Can be more clearly understood the feature and advantage of the utility model by reference to attached drawing, attached drawing be schematically without
It is interpreted as carrying out any restrictions to the utility model, in the accompanying drawings：
Fig. 1 shows the structural schematic diagram of a specific example of the inductance in the utility model embodiment；
Fig. 2 shows the structural schematic diagrams of a specific example of the tap in the utility model embodiment；
Fig. 3 shows the structural schematic diagram of another specific example of the inductance in the utility model embodiment；
Fig. 4 shows the structural schematic diagram of a specific example of the common mode inductance in the utility model embodiment；
Fig. 5 shows the structural schematic diagram of a specific example of the annular common mode inductance in the utility model embodiment.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those skilled in the art are obtained without creative efforts belong to this reality
With novel protected range.
Fig. 1 shows the structural schematic diagram of the inductance according to one embodiment of the utility model.In the present embodiment, inductance packet
The winding 2 for including magnetic core 1 and being wound on magnetic core 1, winding 2 is provided at both ends with disengaging port 4, and is provided with two on winding 2
A above tap 3.Fig. 1 shows the case where two tap 3 of setting.In a specific embodiment, as shown in Fig. 2, tap 3
Including interconnecting piece 31, lead 32 and leading-out terminal 33, wherein interconnecting piece 31 and leading-out terminal 33 set up separately at the both ends of lead 32,
Lead 32 is connected to by interconnecting piece 31 on the core for the coil for constituting winding 2.In practical applications, the side of welding can be passed through
The interconnecting piece 31 of tap 3 is connected on the coil of winding 2 by formula.Before welding, need remove coil on interconnecting piece 31
The insulating layer 21 of junction so that the interconnecting piece 31 of tap 3 can be directly connected on by welding on the core 22 of coil.Another
In one specific implementation mode, as shown in figure 3, be wound with multiple windings 2 on magnetic core 1, and at least one of multiple windings 2 around
It is provided with multiple taps 3 in group 2.Fig. 3 shows the feelings that two taps 3 are arranged on three windings 2 and wherein a winding
Condition.
The inductance that the utility model embodiment provides, due to being provided with multiple taps 3 on winding 2, enabling according to
The tap 3 connected on the application scenario unrestricted choice winding 2 of inductance, to realize the selection to 2 coil the number of turns of winding, in turn
It realizes the selection to outputting inductance value, solves in the prior art caused by constituting the coil turn of winding of inductance and fixing
The immutable problem of outputting inductance amount, expand the scope of application of inductance.Further, the utility model embodiment provides
Inductance, since provided with the tap 3 being made of interconnecting piece 31, lead 32 and leading-out terminal 33, the coil for constituting winding 2 being drawn
Go out outside inductance, realize the selection of the coil turn to winding 2, that is, realizes the alternative output of inductance value.Further
, the inductance that the utility model embodiment provides, due to the multiple windings 2 of coiling on magnetic core 1, by gating different windings 2
Or the combination of winding 2, different inductance values can be exported.In addition, by adding tap 3 on certain windings 2, it can be further
The inductance value of abundant output, expands the scope of application of inductance.
Fig. 4 shows the structural schematic diagram of the common mode inductance according to one embodiment of the utility model.In the present embodiment, altogether
Mould inductance includes magnetic core 1 and the winding being wound on magnetic core 12 and the second winding 5, and on winding 2 and/or the second winding 5
It is provided with more than two taps 3.Fig. 4, which is shown, is being respectively set the case where there are two tap 3 on winding 2 and the second winding 5.
In a specific embodiment, as shown in figure 5, magnetic core 1 is toroidal core, common mode inductance is annular common mode inductance,
And winding 2 and the second winding 5 are symmetricly set on magnetic core 1, and winding 2 is identical with the coil turn of the second winding 5 and coiling side
To opposite.In another specific implementation mode, as shown in figure 5, the installation position of tap 3 and tap on the second winding 5 on winding 2
3 installation position is symmetrical.Fig. 5 is shown the case where two tap 3 are respectively set on winding 2 and the second winding 5.
In multi-tap annular common mode inductance shown in fig. 5, firewire inlet-outlet line has the selection tap of two kinds of inductance values of L1, L2,
Zero curve inlet-outlet line has the selection tap of two kinds of inductance values of N1, N2.When the disengaging line end selection of zero firewire is using N1, L1 tap, altogether
The inductance value of mould inductance is M1；When the disengaging line end selection of zero firewire is using N2, L2 tap, the inductance value of common mode inductance is M2.
User can according to actual needs, and flexibly selection is combined using different taps.
The embodiments of the present invention additionally provide a kind of electronic equipment, are provided in the electronic equipment such as above-mentioned implementation
Inductance or common mode inductance described in example.
Although being described in conjunction with the accompanying the embodiments of the present invention, those skilled in the art can not depart from this
Various modifications and variations can be made in the case of the spirit and scope of utility model, and such modifications and variations are each fallen within by appended power
Profit requires within limited range.
Claims (8)
1. a kind of inductance, including magnetic core (1) and the winding (2) that is wound on the magnetic core (1), it is characterised in that：The winding
(2) at least two taps (3) are provided on；
The tap (3) includes interconnecting piece (31), lead (32) and leading-out terminal (33), wherein the interconnecting piece (31) and extraction
Terminal (33) sets up separately at the both ends of lead (32), and the lead (32) is connected to by interconnecting piece (31) and constitutes the winding (2)
Coil core on.
2. inductance according to claim 1, it is characterised in that：The winding (2) is at least two, at least two windings
At least one of (2) at least two taps (3) are provided on winding (2).
3. a kind of common mode inductance, including magnetic core (1) and at least a pair of of winding for being wound on the magnetic core (1), it is described at least
At least two taps (3) are provided at least one of a pair of of winding winding (2)；
The tap (3) includes interconnecting piece (31), lead (32) and leading-out terminal (33), wherein the interconnecting piece (31) and extraction
Terminal (33) sets up separately at the both ends of lead (32), and the lead (32) is connected to by interconnecting piece (31) and constitutes the winding (2)
Coil core on.
4. common mode inductance according to claim 3, it is characterised in that：The magnetic core (1) is toroidal core.
5. common mode inductance according to claim 4, it is characterised in that：At least a pair of of winding includes winding (2) and the
Two windings (5) are provided at least two taps (3) on the winding (2) and/or the second winding (5).
6. common mode inductance according to claim 5, it is characterised in that：On the winding (2) installation position of tap (3) with
The installation position of tap (4) is symmetrical on second winding (5).
7. common mode inductance according to claim 6, it is characterised in that：The winding (2) and the second winding (5) are symmetrical arranged
On the magnetic core (1), the winding (2) is identical with the coil turn of the second winding (5) and coiling direction is opposite.
8. a kind of electronic device, which is characterized in that including such as claim 1-2 any one of them inductance, alternatively, including such as
Claim 3-7 any one of them common mode inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721819216.6U CN208045280U (en) | 2017-12-20 | 2017-12-20 | Inductor and common mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721819216.6U CN208045280U (en) | 2017-12-20 | 2017-12-20 | Inductor and common mode inductor |
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| Publication Number | Publication Date |
|---|---|
| CN208045280U true CN208045280U (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721819216.6U Active CN208045280U (en) | 2017-12-20 | 2017-12-20 | Inductor and common mode inductor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786084A (en) * | 2019-01-07 | 2019-05-21 | 苏州隆亿电子科技有限公司 | Patch type inductor and its manufacturing method |
| WO2021168797A1 (en) * | 2020-02-28 | 2021-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Common mode choke |
| CN113507196A (en) * | 2020-03-24 | 2021-10-15 | 株洲中车时代电气股份有限公司 | Inductance circuit applied to converter |
| CN113823477A (en) * | 2020-06-19 | 2021-12-21 | 株洲中车机电科技有限公司 | Multifunctional combined traction filter reactor |
-
2017
- 2017-12-20 CN CN201721819216.6U patent/CN208045280U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786084A (en) * | 2019-01-07 | 2019-05-21 | 苏州隆亿电子科技有限公司 | Patch type inductor and its manufacturing method |
| WO2021168797A1 (en) * | 2020-02-28 | 2021-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Common mode choke |
| CN113507196A (en) * | 2020-03-24 | 2021-10-15 | 株洲中车时代电气股份有限公司 | Inductance circuit applied to converter |
| CN113823477A (en) * | 2020-06-19 | 2021-12-21 | 株洲中车机电科技有限公司 | Multifunctional combined traction filter reactor |
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