CN104377008A - PFC common mode inductor - Google Patents
PFC common mode inductor Download PDFInfo
- Publication number
- CN104377008A CN104377008A CN201410759683.9A CN201410759683A CN104377008A CN 104377008 A CN104377008 A CN 104377008A CN 201410759683 A CN201410759683 A CN 201410759683A CN 104377008 A CN104377008 A CN 104377008A
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- coil
- common mode
- pfc
- spare
- magnetic core
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Abstract
The invention discloses a PFC common mode inductor which comprises a shell, a magnetic core located in the shell and a coil winding on the magnetic core. The coil includes a first coil and a third coil. Lead holes are formed in the shell. Two ends of the first coil and the third coil are respectively located in different lead holes. The coil further includes a second coil. The second coil includes a first standby coil and a second standby coil, wherein the turns and winding direction of the first standby coil are identical with the turns and the winding direction of the third coil, the turns and winding direction of the second standby coil are identical with the turns and winding direction of first coil, two ends of the first standby coil and the two ends of the third coil are located in the same lead holes, two ends of the second standby coil and the two ends of the first coil are located in the same lead holes, and distinguishing devices are disposed at two ends of the first standby coil and at two ends of the second standby coil. The PFC common mode inductor is easy to maintain and replace.
Description
Technical field
The present invention relates to common mode inductance field, more particularly, relate to a kind of PFC common mode inductance.
Background technology
PFC and power factor corrector, it can improve power supply to the utilance of civil power when exchanging and being converted to direct current, but can not reduce the electric energy loss of transfer process.PFC is divided into active and passive type two kinds, is the key factor weighing its class height.Electric capacity, common mode inductance, switching tube and control chip is generally comprised in PFC.
Common mode inductance 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 common mode 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, the position of each components and parts is fixed, 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 PFC common mode inductance, and it is for ease of maintenaince replaced.
The present invention's adopted technical scheme that solves the problem is:
A kind of PFC common mode inductance, comprise shell, the magnetic core being positioned at shell and the coil be wound on magnetic core, described coil comprises the first coil and tertiary coil, described shell is provided with fairlead, the first described coil and the two ends of tertiary coil lay respectively in different fairleads, described coil also comprises the second coil, the second described coil comprises and first spare coil that coiling direction identical and with first coil turn identical and that coiling direction identical second spare coil identical with the tertiary coil number of turn, the described two ends of the first spare coil are positioned at identical fairlead with the two ends of tertiary coil, the two ends of the second described spare coil are positioned at identical fairlead with the two ends of the first coil, the first described spare coil and 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 when connecting coil in circuit, changing spare coil, do not need to replace whole common mode inductance, namely do not need common mode inductance to be taken off from circuit board and installs; Its two: each end of the spare coil of the second coil is laid respectively in different fairleads from each end of the first coil, tertiary coil, when replacing coil, directly the coil connectors in each fairlead is carried out replacing, avoid the corresponding termination finding corresponding coil, they are three years old, at equal setting area, the two ends separating device of the first spare coil and the second spare coil, discriminating device is utilized to be convenient to distinguish spare coil, operating personnel's choosing coil when being namely convenient to weld for the first time.
As preferably, the first described coil, between the second coil and tertiary coil, be provided with partition.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.
Further, described partition is " people " font.
As preferably, described discriminating device is conductor cap.
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.
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 two ends correspondence of the first coil of the present invention and the second spare coil lays respectively in two fairleads, the two ends correspondence of tertiary coil and the first spare coil lays respectively in two fairleads, when replacing coil, only need carry out replacement casing to the coil end of two in each fairlead, avoid the termination finding corresponding coil, simple to operate.
3, the two ends of the second coil of the present invention are provided with discriminating device, to the selection of the coil of place in circuit when convenient operation personnel weld inductance for the first time.
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, shell; 41, fairlead; 5, 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 PFC common mode inductance as shown in Figure 1, comprise shell 4, the magnetic core 1 being positioned at shell 4 and the coil be wound on magnetic core 1, described coil comprises the first coil 21 and tertiary coil 23, described shell 4 is provided with fairlead 41, the first described coil 21 and the two ends of tertiary coil 23 lay respectively in different fairleads 41, described coil also comprises the second coil 22, the second described coil 22 comprises and first spare coil 221 that coiling direction identical and with first coil 21 number of turn identical and that coiling direction identical second spare coil 222 identical with tertiary coil 23 number of turn, the two ends of the first described spare coil 221 are positioned at identical fairlead 41 with the two ends of tertiary coil 23, the two ends of the second described spare coil 222 are positioned at identical fairlead 41 with the two ends of the first coil 21, the first described spare coil 221 and the two ends of the second spare coil 222 are provided with discriminating device 5.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 carry out replacement casing to the coil end of two in each fairlead, avoid the termination finding corresponding coil, also avoid the dismounting of inductance simultaneously and reinstall, convenient operation, easily replacing.
Embodiment 2:
A kind of PFC common mode inductance as shown in Figure 1, the present embodiment is optimized on the basis of above-described embodiment, is provided with partition 3 between the first described coil 21, second coil 22 and tertiary coil 23.
Described partition 3 is " people " font.
Embodiment 3:
A kind of PFC common mode inductance as shown in Figure 1, the present embodiment has done refinement on the basis of above-described embodiment, and namely described discriminating device 5 is conductor cap.Utilize conductor cap to distinguish spare coil, it is simple, and is directly placed on winding head by conductor cap, simple to operate.
Embodiment 4:
A kind of PFC 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, is provided with insulating barrier between namely described magnetic core 1 and coil.
As mentioned above, the present invention can be realized preferably.
Claims (5)
1.PFC common mode inductance, comprise shell (4), the magnetic core (1) being positioned at shell (4) and the coil be wound on magnetic core (1), described coil comprises the first coil (21) and tertiary coil (23), described shell (4) is provided with fairlead (41), described the first coil (21) and the two ends of tertiary coil (23) lay respectively in different fairleads (41), it is characterized in that: described coil also comprises the second coil (22), described the second coil (22) comprises and first spare coil (221) that coiling direction identical identical with tertiary coil (23) number of turn and and second spare coil (222) that coiling direction identical identical with the first coil (21) number of turn, two ends and the two ends of tertiary coil (23) of described the first spare coil (221) are positioned at identical fairlead (41), two ends and the two ends of the first coil (21) of described the second spare coil (222) are positioned at identical fairlead (41), described the first spare coil (221) and the two ends of the second spare coil (222) are provided with discriminating device (5).
2. PFC common mode inductance according to claim 1, is characterized in that: described the first coil (21), be provided with partition (3) between the second coil (22) and tertiary coil (23).
3. a kind of PFC common mode inductance according to claim 2, is characterized in that: described partition (3) is " people " font.
4. PFC common mode inductance according to claim 1, is characterized in that: described discriminating device (5) is conductor cap.
5. PFC common mode inductance according to claim 1, is characterized in that: be provided with insulating barrier between described magnetic core (1) and coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759683.9A CN104377008A (en) | 2014-12-12 | 2014-12-12 | PFC common mode inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759683.9A CN104377008A (en) | 2014-12-12 | 2014-12-12 | PFC common mode inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104377008A true CN104377008A (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759683.9A Pending CN104377008A (en) | 2014-12-12 | 2014-12-12 | PFC common mode inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104377008A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293389A (en) * | 2017-07-03 | 2017-10-24 | 华为技术有限公司 | Integrated inductor |
| CN110634656A (en) * | 2018-06-22 | 2019-12-31 | 山特电子（深圳）有限公司 | Multi-winding inductive device for bidirectional DC-DC converter, converter and power supply |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09237717A (en) * | 1996-02-28 | 1997-09-09 | Tokin Corp | Common mode choke coil |
| 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 |
| US7768373B2 (en) * | 2008-04-22 | 2010-08-03 | Cramer Coil & Transformer Co., Inc. | Common mode, differential mode three phase inductor |
| 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 |
| CN203300366U (en) * | 2013-05-31 | 2013-11-20 | 广州金升阳科技有限公司 | Common-mode filter inductor |
| CN204270837U (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 being applicable to PFC |
-
2014
- 2014-12-12 CN CN201410759683.9A patent/CN104377008A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09237717A (en) * | 1996-02-28 | 1997-09-09 | Tokin Corp | Common mode choke coil |
| 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 |
| US7768373B2 (en) * | 2008-04-22 | 2010-08-03 | Cramer Coil & Transformer Co., Inc. | Common mode, differential mode three phase inductor |
| 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 |
| CN203300366U (en) * | 2013-05-31 | 2013-11-20 | 广州金升阳科技有限公司 | Common-mode filter inductor |
| CN204270837U (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 being applicable to PFC |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293389A (en) * | 2017-07-03 | 2017-10-24 | 华为技术有限公司 | Integrated inductor |
| CN110634656A (en) * | 2018-06-22 | 2019-12-31 | 山特电子（深圳）有限公司 | Multi-winding inductive device for bidirectional DC-DC converter, converter and power supply |
| CN110634656B (en) * | 2018-06-22 | 2022-08-16 | 山特电子（深圳）有限公司 | Multi-winding inductive device for bidirectional DC-DC converter, converter and power supply |
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Application publication date: 20150225 |