CN104376969A - Common-mode inductor - Google Patents
Common-mode inductor Download PDFInfo
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- CN104376969A CN104376969A CN201410759875.XA CN201410759875A CN104376969A CN 104376969 A CN104376969 A CN 104376969A CN 201410759875 A CN201410759875 A CN 201410759875A CN 104376969 A CN104376969 A CN 104376969A
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- coil
- spare
- magnetic core
- standby
- common mode
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Abstract
The invention discloses a common-mode inductor which comprises a magnetic core and coils. The coils are wound on the magnetic core and include a first coil, a second coil and a third coil, the number of turns of the first coil is identical to the number of turns of the third coil, the winding direction of the first coil is opposite to the winding direction of the third coil ,the second coil comprises a first standby coil and a second standby coil, the number of turns of the second standby coil is identical to the number of turns of the first standby coil, but the winding direction of the second standby coil is opposite to the winding direction of the first standby coil, the number of turns of the first standby coil is identical to the number of turns of the first coil, a 'herringbone' distance piece is arranged among the first coil, the second coil and the third coil, and differentiating devices are arranged at two ends of the first standby coil and/or two ends of the second standby coil. The common-mode inductor has the advantage that the inductor is easy to replace without being dismantled when problems occur.
Description
Technical field
The present invention relates to inductance coil field, particularly, relate to a kind of common mode inductance.
Background technology
Inductance coil has the effect suppressing curent change, and inductance this effect larger is more obvious, and the inhibition of this effect to circuit is referred to as induction reactance, and the size of induction reactance is relevant with the size of the operating frequency of inductance and itself inductance.
Existing inductance its comprise two coils, in use, when the arbitrary coil of inductance goes wrong, need replace whole inductance, because inductance is fixing on circuit boards, very inconvenient during replacement, not only need inductance to take off and needs are fixed new inductance, and connect.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of common mode inductance, easily replaces when inductance goes wrong.
The present invention's adopted technical scheme that solves the problem is:
A kind of common mode inductance, comprise magnetic core and be wound on the coil on magnetic core, described coil comprises the first coil, second coil and tertiary coil, the first described coil is identical with the number of turn of tertiary coil and coiling direction is contrary, the second described coil comprises the first spare coil and identical with the first spare coil number of turn but that coiling direction is contrary the second spare coil, the number of turn of the first described spare coil is identical with the first coil, the first described coil, partition is provided with between second coil and tertiary coil, described partition is " people " font, the first described spare coil and/or the two ends of the second spare coil are provided with discriminating device.
The present invention improves on the basis of existing technology, one: the second coil is set to spare coil, going wrong, changing spare coil when connecting coil in circuit; Its two: at setting area, the termination separating device of spare coil, be convenient to replace coil time zone sub-coil; Its three, utilize partition to isolate the first coil, the second coil and tertiary coil, ensure that the work of each coil is not respectively disturbed, strengthen stability.
As preferably, in order to prevent puncturing between magnetic core and coil when moment overvoltage, between described magnetic core and coil, be provided with insulating barrier.
As preferably, the equal individual layer of described coil is wound on outside magnetic core.
As preferably, in order to simplify loop construction, the first described spare coil or the two ends of the second spare coil are provided with discriminating device.
Further, described discriminating device is the coloured conductor cap of tool.
To sum up, the invention has the beneficial effects as follows:
1, the present invention arranges the second coil on magnetic core, second coil comprises the first spare coil and the second spare coil, when the first coil or tertiary coil go wrong, only need replace the coil gone wrong utilizing the first spare coil or the second spare coil, avoid the dismounting of inductance and reinstall, convenient operation, easily replaces.
2, the present invention utilizes discriminating device to distinguish the first spare coil and the second spare coil, is convenient to line when replacing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing: 1, magnetic core; 21, the first coil; 22, the second coil; 221, the first spare coil; 222, the second spare coil; 23, tertiary coil; 3, partition; 4, discriminating device.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of common mode inductance as shown in Figure 1, the coil comprising magnetic core 1 and be wound on magnetic core 1, described coil comprises the first coil 21, second coil 22 and tertiary coil 23, the first described coil 21 and tertiary coil 23 the number of turn identical and coiling direction is contrary, the second described coil 22 comprises the first spare coil 221 and identical with first spare coil 221 number of turn but that coiling direction is contrary the second spare coil 222, the number of turn of the first described spare coil 221 is identical with the first coil 21, the first described coil 21, partition 3 is provided with between second coil 22 and tertiary coil 23, described partition 3 is " people " font, the first described spare coil 221 and/or the two ends of the second spare coil 222 are provided with discriminating device 4.Magnetic core can adopt cross section to be the circular magnetic core of rectangle.
The present embodiment arranges the second coil on magnetic core, second coil comprises the first spare coil and the second spare coil, when the first coil or tertiary coil go wrong, only need replace the coil gone wrong utilizing the first spare coil or the second spare coil, avoid the dismounting of inductance and reinstall, convenient operation, easily replaces.
Embodiment 2:
A kind of common mode inductance as shown in Figure 1, in order to prevent puncturing between magnetic core and coil when moment overvoltage, the present embodiment is optimized on the basis of above-described embodiment, namely between described magnetic core 1 and coil, arranges insulating barrier.
The equal individual layer of described coil is wound on outside magnetic core 1.
Embodiment 3:
A kind of common mode inductance as shown in Figure 1, the present embodiment is preferred a kind of execution mode on the basis of above-described embodiment, and the first namely described spare coil 221 or the two ends of the second spare coil 222 are provided with discriminating device 4.Only at setting area, the two ends separating device of the first spare coil 221 or the second spare coil 222, simplify loop construction, cost-saving to a certain extent.
Described discriminating device 4 is the coloured conductor cap of tool.Except utilizing conductor cap, can also alternate manner be set, such as directly makes marks at wire head.
As mentioned above, the present invention can be realized preferably.
Claims (5)
1. common mode inductance, the coil comprising magnetic core (1) and be wound on magnetic core (1), it is characterized in that: described coil comprises the first coil (21), second coil (22) and tertiary coil (23), described the first coil (21) is identical with the number of turn of (23) of tertiary coil and coiling direction is contrary, described the second coil (22) comprises the first spare coil (221) and but second spare coil (222) that coiling direction contrary identical with the first spare coil (221) number of turn, the number of turn of described the first spare coil (221) is identical with the first coil (21), described the first coil (21), partition (3) is provided with between second coil (22) and tertiary coil (23), described partition (3) is " people " font, described the first spare coil (221) and/or the two ends of the second spare coil (222) are provided with discriminating device (4).
2. common mode inductance according to claim 1, is characterized in that: be provided with insulating barrier between described magnetic core (1) and coil.
3. common mode inductance according to claim 1, is characterized in that: the equal individual layer of described coil is wound on magnetic core (1) outward.
4. common mode inductance according to claim 1, is characterized in that: described the first spare coil (221) or the two ends of the second spare coil (222) are provided with discriminating device (4).
5., according to the arbitrary described common mode inductance of Claims 1-4, it is characterized in that: described discriminating device (4) is the coloured conductor cap of tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759875.XA CN104376969A (en) | 2014-12-12 | 2014-12-12 | Common-mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759875.XA CN104376969A (en) | 2014-12-12 | 2014-12-12 | Common-mode inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104376969A true CN104376969A (en) | 2015-02-25 |
Family
ID=52555824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759875.XA Pending CN104376969A (en) | 2014-12-12 | 2014-12-12 | Common-mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104376969A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02273906A (en) * | 1989-04-14 | 1990-11-08 | Omron Corp | Common mode inductor |
| CN1754232A (en) * | 2003-02-25 | 2006-03-29 | 埃普科斯股份有限公司 | Insulating element, toroidal core, toroidal core choke, and method for producing said toroidal core choke |
| CN2849925Y (en) * | 2005-08-31 | 2006-12-20 | 北京伏安电气公司 | Feed-through current transformer |
| CN202258647U (en) * | 2011-09-30 | 2012-05-30 | 常州福达电子有限公司 | Common mode choke |
| CN202523538U (en) * | 2011-11-15 | 2012-11-07 | 特变电工股份有限公司 | Rectifier transformer |
| CN204010892U (en) * | 2014-02-10 | 2014-12-10 | 广州松下空调器有限公司 | A kind of common mode inductance |
| CN204270791U (en) * | 2014-12-12 | 2015-04-15 | 绵阳市容富电子科技有限公司 | A kind of common mode inductance |
-
2014
- 2014-12-12 CN CN201410759875.XA patent/CN104376969A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02273906A (en) * | 1989-04-14 | 1990-11-08 | Omron Corp | Common mode inductor |
| CN1754232A (en) * | 2003-02-25 | 2006-03-29 | 埃普科斯股份有限公司 | Insulating element, toroidal core, toroidal core choke, and method for producing said toroidal core choke |
| CN2849925Y (en) * | 2005-08-31 | 2006-12-20 | 北京伏安电气公司 | Feed-through current transformer |
| CN202258647U (en) * | 2011-09-30 | 2012-05-30 | 常州福达电子有限公司 | Common mode choke |
| CN202523538U (en) * | 2011-11-15 | 2012-11-07 | 特变电工股份有限公司 | Rectifier transformer |
| CN204010892U (en) * | 2014-02-10 | 2014-12-10 | 广州松下空调器有限公司 | A kind of common mode inductance |
| CN204270791U (en) * | 2014-12-12 | 2015-04-15 | 绵阳市容富电子科技有限公司 | A kind of common mode inductance |
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Application publication date: 20150225 |