CN107256769A - A kind of chip type two-wire common-mode inductor magnetic element - Google Patents
A kind of chip type two-wire common-mode inductor magnetic element Download PDFInfo
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- CN107256769A CN107256769A CN201710679830.5A CN201710679830A CN107256769A CN 107256769 A CN107256769 A CN 107256769A CN 201710679830 A CN201710679830 A CN 201710679830A CN 107256769 A CN107256769 A CN 107256769A
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- wire
- magnetic core
- magnetic
- pad
- mode inductor
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- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 5
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 235000020004 porter Nutrition 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of chip type two-wire common-mode inductor magnetic element, include magnetic conductor and coil block, the magnetic conductor includes the first magnetic core and the second magnetic core, second magnetic core is fixed by adhesive and is bonded on the first magnetic core, coil block is two-wire current coiling, two-wire current coiling mutually twists together to form coil block and be wound in the second magnetic core, the two ends wire of coil block is respectively welded in the two sides of the second magnetic core, it is used for the pad of paster pad position provided with four on the second magnetic core, weld to form electrode tip by the two ends wire of pad and coil block.Using chip type two-wire common-mode inductor magnetic element of the present invention, by the shape and structure for improving common-mode inductor, coil method and wire winding, improve production simplification, the convenience of inductor, pass through batch production, production cost is reduced, production efficiency is improved, while improving the qualification rate of product.
Description
Technical field
The present invention relates to inductors technique field, a kind of specifically chip type two-wire common-mode inductor magnetic element.
Background technology
Common-mode inductor be from two groups of numbers of turn it is identical, constituted around to opposite winding.The two windings make in each winding
Line current produced by magnetic flux it is equal in magnitude, and opposite in phase.When the normal current in circuit flows through common mode inductance, electricity
Stream produces reverse magnetic field and cancelled each other in the inductance coil of same-phase coiling, and now normal signal electric current is mainly by coil
The influence of resistance；When there is common mode current flowing through coil, due to the same tropism of common mode inductance, magnetic in the same direction can be produced in coil
And increase the induction reactance of coil, coil is shown as high induction reactance, produce stronger damping, with this attenuation common-mode electric current, reach
To the purpose of filtering.Signal coupling, DC-isolation, impedance matching, high_voltage isolation are primarily served, common mode inhibition etc. is acted on, completed
The transmission of primary and secondary signal, DC-isolation, impedance matching and the high voltage protection of primary and secondary, realize that common-mode signal suppresses.
With the continuous progress and the fast development of information industry of science and technology, extensive, super large-scale integration turns into hair
The main flow and trend of exhibition.Therefore, the requirement of the component used for it also more and more higher, inductor is wherein important first device
One of part, requires it also correspondingly to improve constantly.The electricity of EMI filtering is used in for the Ethernet in internet electronic field
Sensor, usually realizes the EMI filtering of certain frequency range, for traditional circular ring type EMI common modes using toroidal cores coiling
Wave filter no doubt has suppresses EMI effects well, because circular ring type EMI common-mode inductors need to be assembled into a fixed profile
, it is necessary to artificial manual wound coil separated time and connect out payment to a porter in the encapsulation of size, scolding tin casting glue etc. series of processes, therefore behaviour
Work gets up to compare labor intensive cost, and the Insertion Loss performance of product can be greatly reduced, and is unfavorable for batch production, causes its production efficiency
It is low.With the rise of Surface Mount technology, various electronic electric equipment products are increasing to the demand of Surface Mount electronic component, conventional
Common-mode inductor can not meet the requirement in market.
The content of the invention
For problem present in background technology, it is an object of the invention to provide a kind of chip type two-wire common-mode inductor magnetic
Property element, its is simple in construction, reasonable in design, convenient for production, can be produced in batches by machine, can be effectively reduced inductor into
This, improves the magnetic core utilization rate of inductor.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of chip type two-wire common-mode inductor
Magnetic element, includes magnetic conductor and coil block, and the magnetic conductor includes the first magnetic core and the second magnetic core, second magnetic
Core is fixed by adhesive and is bonded on the first magnetic core, and the coil block is two-wire current coiling, and two-wire current coiling is mutual
Twist together to form coil block and be wound in the second magnetic core, the two ends wire of coil block is respectively welded in the second magnetic core
Two sides, four are provided with second magnetic core is used for the pad of paster pad position, passes through the pad and coil
The two ends wire of component welds to form electrode tip.
Further, described chip type two-wire common-mode inductor magnetic element, wherein first magnetic core is U-shaped magnetic
Core, the second magnetic core is I font magnetic cores, and its magnetic core uses nickel zinc magnetic material, and the two-wire current coiling uses QPN180 enamel-covers
Line.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the top surface of the I fonts magnetic core leads to
Cross adhesive and fix the U-shaped face for being bonded in U-shaped magnetic core, gap is provided between the bottom surface of U-shaped magnetic core and two-wire current coiling,
It is respectively equipped with two pads in I font magnetic core bottom surfaces both sides, the weldering of the two ends wire of two-wire current coiling respectively with four pads
Mutually welding forms electrode tip for contact position.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the I fonts magnetic core bottom surface side
It is respectively the first signal input pad and secondary signal input pad to be provided with two pads, and opposite side is provided with two pads point
Wei not the first signal output pad and secondary signal o pads；One end wire of the two-wire current coiling is respectively with first
Signal input pad mutually welds with the pad position of secondary signal input pad and forms input electrode end, and other end wire is right respectively
Answer the pad position of ground and the first signal output pad and secondary signal o pads mutually to weld and form output electrode end.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the coil block passes through individual layer
The mode of coiling or sandwich wound is wound in the second magnetic core, is often wound with one circuit, two-wire current coiling intersect it is stranded once
Or once more than.
Using a kind of chip type two-wire common-mode inductor magnetic element of the present invention, compared with prior art, it has
Beneficial effect is：It is novel in design with simple in construction, by improving the shape and structure of common-mode inductor, coil method and coiling
Technique, improves production simplification, the convenience of inductor, can not only solve tradition and become that manual coiling efficiency is low and manpower demand
Big predicament, and the problem of solve product inconsistency and poor stability that traditional structure is caused due to handwork, lead to
Cross using I fonts and U-shaped magnetic core, using QPN180 enamel-covered wire with for coiling, on I font magnetic cores being provided with four is used for
The pad of paster pad position, positioning welding is carried out by automatic spot mode, is easy to manufacture, and special is set by full automatic
The standby common-mode inductor manufacture to implement whole process, is produced in batches, and then reduces production cost, improves production efficiency,
While improving the qualification rate of product, the EMI band requirements that its electrical parameter can also be met so that can be risen in network application
To the effect for suppressing EMI interference.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation one of the present invention；
Fig. 2 is the structural representation two of the present invention；
Fig. 3 is the structural representation of the second magnetic core in the present invention.
Shown in figure：The magnetic cores of 1- first, the magnetic cores of 2- second, the coiling of 3- two-wire currents, 4- pads, the input of the signals of 41- first
Pad, 42- secondary signals input pad, the first signal outputs of 43- pad, 44- secondary signals o pads, 5- control systems.
Embodiment
For further illustrate the present invention inventive concept, below with reference to accompanying drawing to the present invention embodiment make into
One step explanation：
As shown in Figure 1 to Figure 3, a kind of chip type two-wire common-mode inductor magnetic element of the present invention, includes magnetic conductor
And coil block, the magnetic conductor includes the first magnetic core 1 and the second magnetic core 2, and second magnetic core 2 fixes viscous by adhesive
Together on the first magnetic core 1, the coil block is two-wire current coiling 3, and two-wire current coiling 3 mutually twists together to form line
Coil assembly is simultaneously wound in the second magnetic core 2, and the two ends wire of coil block is respectively welded in the two sides of the second magnetic core 2, in institute
State and four pads 4 for paster pad position are provided with the second magnetic core 2, pass through the two ends of the pad 4 and coil block
Wire welds to form electrode tip.
Further, described chip type two-wire common-mode inductor magnetic element, wherein first magnetic core 1 is U-shaped
Magnetic core, the second magnetic core 2 is I font magnetic cores, and its magnetic core uses nickel zinc magnetic material, and the two-wire current coiling 3 uses QPN180
Enamel-covered wire.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the top surface of the I fonts magnetic core leads to
Cross adhesive and fix the U-shaped face for being bonded in U-shaped magnetic core, between being provided between the bottom surface of U-shaped magnetic core and two-wire current coiling 3
Gap, is respectively equipped with two pads 4 in I font magnetic core bottom surfaces both sides, the two ends wire of two-wire current coiling 3 respectively with four pads
Mutually welding forms electrode tip for 4 pad position.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the I fonts magnetic core bottom surface side
Be provided with two pads 4 be respectively the first signal input pad 41 and secondary signal input pad 42, opposite side be provided with two
Individual pad 4 is respectively the first signal output pad 43 and secondary signal o pads 44；One end of the two-wire current coiling 3
Wire mutually welds with the pad position of the first signal input pad 41 and secondary signal input pad 42 form input electrode respectively
End, the pad position phase of other end wire respectively correspondingly with the first signal output pad 43 and secondary signal o pads 44
Welding forms output electrode end.
Further, described chip type two-wire common-mode inductor magnetic element, wherein the coil block passes through individual layer
The mode of coiling or sandwich wound is wound in the second magnetic core 2, is often wound with one circuit, and two-wire current coiling 3 intersects stranded one
It is secondary or once more than.In actual application, the individual layer that coil block is wound on magnetic core can be increased or decreased according to actual conditions,
The purpose for using sandwich construction to wind is that, to increase the inductance of coil block, two-wire current coiling 3 intersects stranded number of times
It can be adjusted according to actual conditions.
In actual application, using a kind of chip type two-wire common-mode inductor magnetic element of the present invention, have
It is simple in construction, it is novel in design, by improving the shape and structure of common-mode inductor, coil method and wire winding, improve inductor
Production simplification, convenience, can not only solve tradition and become that manual coiling efficiency is low and the big predicament of manpower demand, and solution
The problem of product inconsistency and poor stability that traditional structure of having determined is caused due to handwork, by using I fonts and U-shaped
Shape magnetic core, is used for the weldering of paster pad position using QPN180 enamel-covered wire with for coiling, being provided with four on I font magnetic cores
Disk, positioning welding is carried out by automatic spot mode, is easy to manufacture, is implemented being total to for whole process by full automatic special equipment
Mould inductor is manufactured, and is produced in batches, and then reduces production cost, improves production efficiency, while improving product
Qualification rate, the EMI band requirements that its electrical parameter can also be met so that can be played in network application suppress EMI interference
Effect.
Protection scope of the present invention is not limited only to the technical scheme disclosed in embodiment, the foregoing is only this hair
Bright better embodiment, is not intended to limit the present invention, all any trickle amendments made according to technical scheme, equivalent
Replace and improve, should be included within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of chip type two-wire common-mode inductor magnetic element, it is characterised in that：Include magnetic conductor and coil block, it is described
Magnetic conductor includes the first magnetic core (1) and the second magnetic core (2), and second magnetic core (2) is fixed by adhesive and is bonded in first
On magnetic core (1), the coil block is two-wire current coiling (3), and two-wire current coiling (3) mutually twists together to form coil
Component is simultaneously wound in the second magnetic core (2), and the two ends wire of coil block is respectively welded in the two sides of the second magnetic core (2),
Four are provided with second magnetic core (2) is used for the pad (4) of paster pad position, passes through the pad (4) and coil group
The two ends wire of part welds to form electrode tip.
2. chip type two-wire common-mode inductor magnetic element according to claim 1, it is characterised in that：First magnetic core
(1) it is U-shaped magnetic core, the second magnetic core (2) is I font magnetic cores, and its magnetic core uses nickel zinc magnetic material, the two-wire current coiling
(3) QPN180 enamel-covered wires are used.
3. chip type two-wire common-mode inductor magnetic element according to claim 2, it is characterised in that：The I fonts magnetic
The top surface of core fixes the U-shaped face for being bonded in U-shaped magnetic core, bottom surface and the two-wire current coiling (3) of U-shaped magnetic core by adhesive
Between be provided with gap, be respectively equipped with two pads (4), the two ends wire of two-wire current coiling (3) in I font magnetic core bottom surfaces both sides
Mutually welded with the pad position of four pads (4) respectively and form electrode tip.
4. chip type two-wire common-mode inductor magnetic element according to claim 3, it is characterised in that：The I fonts magnetic
It is respectively the first signal input pad (41) and secondary signal input pad (42) that core bottom surface side, which is provided with two pads (4),
It is respectively the first signal output pad (43) and secondary signal o pads (44) that opposite side, which is provided with two pads (4),；Institute
State one end wire of two-wire current coiling (3) respectively with the first signal input pad (41) and secondary signal input pad (42)
Mutually welding forms input electrode end for pad position, other end wire respectively correspondingly with the first signal output pad (43) and the
Mutually welding forms output electrode end for the pad position of binary signal o pads (44).
5. chip type two-wire common-mode inductor magnetic element according to claim 1, it is characterised in that：The coil block
It is wound in the second magnetic core (2), is often wound with one circuit by way of individual layer coiling or sandwich wound, two-wire current coiling (3) phase
Mutual cross stranding once or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679830.5A CN107256769A (en) | 2017-08-10 | 2017-08-10 | A kind of chip type two-wire common-mode inductor magnetic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679830.5A CN107256769A (en) | 2017-08-10 | 2017-08-10 | A kind of chip type two-wire common-mode inductor magnetic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107256769A true CN107256769A (en) | 2017-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679830.5A Pending CN107256769A (en) | 2017-08-10 | 2017-08-10 | A kind of chip type two-wire common-mode inductor magnetic element |
Country Status (1)
| Country | Link |
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| CN (1) | CN107256769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863233A (en) * | 2017-11-23 | 2018-03-30 | 深圳振华富电子有限公司 | The manufacture craft of common-mode inductor, core formulation and common-mode inductor |
| JP2019216145A (en) * | 2018-06-11 | 2019-12-19 | 株式会社村田製作所 | Coil component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501791A (en) * | 2006-07-14 | 2009-08-05 | 美商·帕斯脉冲工程有限公司 | Self-leaded surface mount inductors and methods |
| JP2012104724A (en) * | 2010-11-12 | 2012-05-31 | Panasonic Corp | Inductor component |
| CN103887041A (en) * | 2014-01-14 | 2014-06-25 | 深圳顺络电子股份有限公司 | Surface-mounted type common-mode choker and manufacturing method thereof |
| CN205028753U (en) * | 2015-10-12 | 2016-02-10 | 中山市汉仁电子有限公司 | SMD net gape transformer of subminiature |
| CN207009250U (en) * | 2017-08-10 | 2018-02-13 | 安顺市成威科技有限公司 | A kind of chip type two-wire common-mode inductor magnetic element |
-
2017
- 2017-08-10 CN CN201710679830.5A patent/CN107256769A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501791A (en) * | 2006-07-14 | 2009-08-05 | 美商·帕斯脉冲工程有限公司 | Self-leaded surface mount inductors and methods |
| JP2012104724A (en) * | 2010-11-12 | 2012-05-31 | Panasonic Corp | Inductor component |
| CN103887041A (en) * | 2014-01-14 | 2014-06-25 | 深圳顺络电子股份有限公司 | Surface-mounted type common-mode choker and manufacturing method thereof |
| CN205028753U (en) * | 2015-10-12 | 2016-02-10 | 中山市汉仁电子有限公司 | SMD net gape transformer of subminiature |
| CN207009250U (en) * | 2017-08-10 | 2018-02-13 | 安顺市成威科技有限公司 | A kind of chip type two-wire common-mode inductor magnetic element |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863233A (en) * | 2017-11-23 | 2018-03-30 | 深圳振华富电子有限公司 | The manufacture craft of common-mode inductor, core formulation and common-mode inductor |
| JP2019216145A (en) * | 2018-06-11 | 2019-12-19 | 株式会社村田製作所 | Coil component |
| JP2022002330A (en) * | 2018-06-11 | 2022-01-06 | 株式会社村田製作所 | Coil component |
| JP7063132B2 (en) | 2018-06-11 | 2022-05-09 | 株式会社村田製作所 | Coil parts |
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Application publication date: 20171017 |
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