CN106229107B - A kind of winding type coil component and its manufacturing method - Google Patents
A kind of winding type coil component and its manufacturing method Download PDFInfo
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- CN106229107B CN106229107B CN201610796431.2A CN201610796431A CN106229107B CN 106229107 B CN106229107 B CN 106229107B CN 201610796431 A CN201610796431 A CN 201610796431A CN 106229107 B CN106229107 B CN 106229107B
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- 238000004804 winding Methods 0.000 title claims abstract description 112
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims description 15
- 238000007639 printing Methods 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- 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
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- 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
- H01F17/041—Means for preventing rotation or displacement of the 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Coil Winding Methods And Apparatuses (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a kind of winding type coil component and its manufacturing methods, winding type coil component includes core, four external electrodes, the first wire rod, the second wire rod and magnetic closure, core includes coiling central part, the first flange part and the second flange part, and support portion is equipped at the link position of coiling central part and the first flange part and/or at the link position of coiling central part and the second flange part；The first lap of first wire rod is the connection place tightly around coiling central part and support portion, the first lap of second wire rod is tightly around between the first lap and support portion of the first wire rod, each circle of first wire rod and the second wire rod is mutually close to wind respectively to form the first winding layers and the second winding layers, and the both ends of the first wire rod and the second wire rod are separately connected external electrode；Magnetic closure is fixedly connected on core.Between the same circle number of a pair of of wire rod in winding type coil component of the invention and its manufacturing method spacing reduce, magnetic coupling sex expression it is excellent and be difficult to happen winding collapse or disorderly around.
Description
Technical field
The present invention relates to a kind of winding type coil component and its manufacturing methods.
Background technique
Winding type coil is widely used in high-speed serial data transmission, wherein common mode choke coil, is connecting two sons
When the differential lines cable of system, application is more universal.The coil component has a pair of of coil for being mutually coupled, by by two groups of lines
Material is wound in magnetic core portion and is fixed on external electrode.In application process, general common mode choke coil uses wire rod circle number and phase
Position be all it is identical, when in circuit have normal current flowing through coil when, electric current generates in the inductance coil of same-phase coiling
Opposing magnetic field is so cancel out each other, and normal signal electric current caused by leakage inductance mainly by Resistance Influence in wire rod and minority because hindering at this time
Buddhist nun；When there is common mode current flowing through coil, due to the same tropism of electric current, magnetic field in the same direction can be generated in coil and increases coil
Induction reactance makes coil show as high impedance, generates stronger damping, with this attenuation common-mode electric current, achievees the purpose that filtering.It passes
Common mode choke coil of uniting often exists when signal passes through coil, and difference mode signal is partly converted into common-mode signal, common mode letter
Number the case where being partly converted into difference mode signal, referred to as mode conversion phenomena.Since the presence of mode conversion phenomena makes now
In some common mode choke coils, there are problems that radiated noise or anti-interference reduce.
In order to preferably overcome the problems, such as that mode transfer zone comes, disclosed in patent document CN1624828A a kind of total
Mould choking-winding allows the differential signal of difference cabling to pass through in structure, and eliminates intrusive common mode noise；The loop construction are as follows:
First wire rod is wrapped in coil core, and is fixed on the external electrode of two flange parts, and the second material winds are on the first wire rod
Face forms layered structure up and down and is fixed on flange part external electrode, using the synchronous winding in pairs of the first and second wire rods in technique
Core forms.The second deck wire slumps in the first wire rod in order to prevent, first by the first wire rod and second in the patent document
First lap 3A1,3B1 of wire rod side by side, as the beginning of first layer, since the first wire rod and the second wire rod are simultaneously wound rolling up
Core center, therefore the second circle 3A2 of the first wire rod is located at the downstream of the first lap 3B1 of the second wire rod, and the of the second wire rod
Two circle 3B2 are located at the top of the first lap 3A1 of the first wire rod and the first lap 3B1 of the second wire rod, as shown in Figure 9.Using such
When winding mode, second circle and the distance between the first wire rod hereafter respectively enclosed and the second wire rod it is relatively large, the first wire rod with
Magnetic coupling between second wire rod can reduce, and it is not ideal noise reduction effect that the probability that mode is converted to noise is high.
The disclosure of background above technology contents is only used for auxiliary and understands design and technical solution of the invention, not necessarily
The prior art for belonging to present patent application, no tangible proof show above content present patent application the applying date
In disclosed situation, above-mentioned background technique should not be taken to the novelty and creativeness of evaluation the application.
Summary of the invention
In order to solve the above technical problems, the present invention proposes that a kind of spacing between the same circle number of a pair of of wire rod reduces, magnetic coupling
Close sex expression it is excellent and be difficult to happen winding collapse or disorderly around winding type coil component and its manufacturing method.
In order to achieve the above objectives, the invention adopts the following technical scheme:
The invention discloses a kind of winding type coil components, including core, the first external electrode, the second external electrode, third
External electrode, the 4th external electrode, the first wire rod, the second wire rod and magnetic closure, in which: the core include coiling central part with
And it is connected to first flange part and the second flange part at coiling central part both ends, in the coiling central part and described first
Support is equipped at the link position of flange part and/or at the link position of the coiling central part and second flange part
Portion；The first external electrode and the second external electrode are separately positioned on first flange part, the third external electrode and institute
It states the 4th external electrode and is separately positioned on second flange part；The first lap of first wire rod is tightly around the coiling central part
With in place of the connection of the support portion, the second circle of first wire rod until last lap be along the coiling central part simultaneously
Mutually it is close to winding and forms the first winding layers for being close to the coiling central part, the both ends of first wire rod is separately connected described
The first external electrode and the third external electrode；The first lap of second wire rod is tightly around the first lap of first wire rod and described
Between support portion, the second circle of second wire rod is until last lap is to be close to along first winding layers and mutually wind
The second winding layers for being close to first winding layers are formed, wherein the n-th circle of second wire rod is wound on the First Line
In the mountain valley that (n-1)th circle of material and the n-th circle of first wire rod are formed, the both ends of n >=2, second wire rod are separately connected
The second external electrode and the 4th external electrode；The magnetic closure is fixedly connected on the core.
Preferably, the support portion is ramp structure or step structure.
Preferably, the angle between the slope of the ramp structure and the coiling central part is 110 °~130 °.
Preferably, the size of the width of the step of the step structure and height respectively in the radius of first wire rod and
Between the diameter of first wire rod.
Preferably, the first external electrode, the second external electrode, the third external electrode and the 4th external electrode point
It Wei not L-type electrode structure.
The invention also discloses a kind of manufacturing methods of winding type coil component, comprising the following steps: by the first wire rod and
Second wire rod surrounds the coiling central part winding of core simultaneously, wherein it is convex to be connected with first at the both ends of the coiling central part
Edge and the second flange part, at the link position of the coiling central part and first flange part and/or in the coiling
Support portion is equipped at the link position of central part and second flange part；The first external electrode is formed on first flange part
And the second external electrode, third external electrode and the 4th external electrode are formed on second flange part；The first of first wire rod
It encloses in place of the connection tightly around the coiling central part and the support portion and winds, the first lap of second wire rod is tightly around described the
It is wound between the first lap of one wire rod and the support portion, to wind the first lap and described for forming first wire rod simultaneously
The first lap of two wire rods；N-th circle of first wire rod is close to the (n-1)th circle of first wire rod along the coiling central part
N-th circle of winding, second wire rod is formed wound on the (n-1)th circle of first wire rod and the n-th circle of first wire rod
Mountain valley in and be close to the (n-1)th circle of second wire rod, to wind the n-th circle and described for forming first wire rod simultaneously
N-th circle of two wire rods, n >=2 are completed until the last lap of first wire rod and the second wire rod is wound；The First Line
The first lap of material forms the first winding layers for being close to the coiling central part to last lap, and the first lap of second wire rod is extremely
Last lap forms the second winding layers for being close to first winding layers；The both ends of first wire rod are separately connected described
On one external electrode and the third external electrode, the both ends of second wire rod are connected to the second external electrode and described
On 4th external electrode；Magnetic closure is fixedly connected on the core.
Preferably, the support portion is ramp structure or step structure.
Preferably, the angle between the slope of the ramp structure and the coiling central part is 110 °~130 °.
Preferably, the size of the width of the step of the step structure and height respectively in the radius of first wire rod and
Between the diameter of first wire rod.
Preferably, the first external electrode and the second external electrode are formed on first flange part, described
The step of third external electrode and four external electrode are formed in two flanges portion specifically includes:
Using bat printing mode, silver is coated in the bottom surface on first flange part and second flange part and side respectively
Slurry forms the film with L-type structure, carries out wet type to the film surface after combustion knot solidification and is electroplated to form uniform metal electricity
Pole layer states the first external electrode and the second external electrode to be formed on first flange part, on second flange part
Form the third external electrode and the 4th external electrode.
Compared with prior art, the beneficial effects of the present invention are: winding type coil component of the invention rely primarily on around
The support portion of the junction setting of the junction and/or coiling central part and the second flange part of line central part and the first flange part,
So that the volume that the wire rod of the first wire rod and the second wire rod in winding process in corresponding winding layers is parallel or substantially parallel
Around the support portion minimizes the spacing between the same circle number of a pair of of wire rod, allows the same of a pair of of wire rod
Magnetic coupling aspect of performance between circle is excellent in；And each circle of wire rod is all mutually close to support in winding process, thus
Be difficult to happen winding collapse or disorderly around.The manufacturing method of winding type coil component of the invention, due to making the first wire rod and
The first lap of two wire rods is wound respectively close to support portion to achieve the effect that support, at the same the winding of subsequent each circle have it is previous
Circle as support to wind, between both threads material may be implemented while winding and being able to maintain between the same circle number of a pair of of wire rod
Away from minimizing, the magnetic coupling aspect of performance between the same circle of a pair of of wire rod is allowed to be excellent in；And each circle of wire rod
In winding process all mutually be close to support, thus be difficult to happen winding collapse or disorderly around.
In further embodiment, support portion uses ramp structure or step structure, and ramp structure further uses slope
Angle is 110 °~130 ° between coiling central part, and the width and height of the step of step structure are further respectively in wire rod
Between radius and diameter so that in the first lap winding process of the second wire rod can just wound on the first wire rod first lap and
Between support portion, and the n-th circle of the second wire rod can enclose in the mountain valley formed wound on the (n-1)th circle of the first wire rod and n-th,
To allowing the spacing between the first wire rod and the same circle number of the second wire rod to reduce, and it is good to wind effect, is difficult to occur to wind to collapse
It collapses or winds.
In further scheme, each electrode is all made of L-type electrode structure, and each electrode first passes through bat printing, then passes through
Oversintering solidification, last wet type are electroplated to be formed, and connect stronger, low manufacture cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the winding type coil component of the embodiment of the present invention one；
Fig. 2 is the schematic cross-sectional view splitted along line A-A in Fig. 1；
Fig. 3 is the positioning operation schematic diagram when coiling of the winding type coil component of the manufacture embodiment of the present invention one starts；
Fig. 4 is the side schematic view that the core after Fig. 3 step rotates clockwise 90 °；
Fig. 5 is that the core after Fig. 4 step rotates clockwise rear material winds in the side schematic view of coiling central part；
Fig. 6 is the positioning schematic diagram of the first wire rod and the second wire rod end after Fig. 5 step；
Fig. 7 is the signal that the access port of the first wire rod and the second wire rod is separately fixed on external electrode by Fig. 6 step later
Figure；
Fig. 8 is the schematic cross-sectional view of the winding type coil component of the embodiment of the present invention two；
Fig. 9 is the schematic cross-sectional view of winding type coil component in the prior art.
Specific embodiment
Below against attached drawing and in conjunction with preferred embodiment, the invention will be further described.
The preferred embodiment of the present invention discloses a kind of winding type coil component, including core, the first external electrode, second
External electrode, third external electrode, the 4th external electrode, the first wire rod, the second wire rod and magnetic closure, in which: the core includes
Coiling central part and the first flange part and the second flange part for being connected to coiling central part both ends, at the coiling center
At the link position of portion and first flange part and/or the coiling central part and second flange part link position
Place is equipped with support portion；The first external electrode and the second external electrode are separately positioned on first flange part, the third
External electrode and the 4th external electrode are separately positioned on second flange part；The first lap of first wire rod is tightly around described
In place of the connection of coiling central part and the support portion, the second circle of first wire rod until last lap be along it is described around
Line central part is simultaneously mutually close to the first winding layers that winding forms the abutting coiling central part, the both ends point of first wire rod
The first external electrode and the third external electrode are not connected；The first lap of second wire rod tightly around first wire rod
Between one circle and the support portion, the second circle of second wire rod is until last lap is along first winding layers and phase
Mutually be close to winding and form the second winding layers for being close to first winding layers, wherein the n-th circle of second wire rod be wound on
In the mountain valley that (n-1)th circle of first wire rod and the n-th circle of first wire rod are formed, n >=2, the two of second wire rod
End is separately connected the second external electrode and the 4th external electrode；The magnetic closure is fixedly connected on the core.
The preferred embodiment of the present invention also discloses a kind of manufacturing method of winding type coil component, comprising the following steps:
The coiling central part winding that first wire rod and the second wire rod are surrounded to core simultaneously, wherein at the both ends of the coiling central part
Be connected with the first flange part and the second flange part, at the link position of the coiling central part and first flange part and/
Or support portion is equipped at the link position of the coiling central part and second flange part；The shape on first flange part
At first external electrode and the second external electrode, third external electrode and the 4th external electrode are formed on second flange part；Described
The first lap of one wire rod is wound tightly around the connection place of the coiling central part and the support portion, and the first of second wire rod
Circle is wound tightly around between the first lap and the support portion of first wire rod, forms the of first wire rod to wind simultaneously
The first lap of one circle and second wire rod；N-th circle of first wire rod is close to described first along the coiling central part
(n-1)th circle winding of wire rod, the n-th circle of second wire rod is wound on the (n-1)th circle of first wire rod and the First Line
The (n-1)th circle of second wire rod is enclosed in the mountain valley formed and be close to the n-th of material, forms first wire rod to wind simultaneously
N-th circle of the n-th circle and second wire rod, n >=2, until the last lap of first wire rod and the second wire rod has been wound
At；The first lap of first wire rod forms the first winding layers for being close to the coiling central part to last lap, and described second
The first lap of wire rod forms the second winding layers for being close to first winding layers to last lap；By the both ends of first wire rod
It is separately connected on the first external electrode and the third external electrode, the both ends of second wire rod is connected to described
On two external electrodes and the 4th external electrode；Magnetic closure is fixedly connected on the core.
In a further embodiment, the support portion is ramp structure or step structure, wherein specifically, the slope
Angle between the slope of structure and the coiling central part is 110 °~130 °；The width and height of the step of the step structure
The size of degree is respectively between the radius of first wire rod and the diameter of first wire rod.
In a still further embodiment, it is formed on first flange part outside the first external electrode and described second
Electrode is specifically included in the step of forming the third external electrode and four external electrode on second flange part: being used
Silver paste is coated in the bottom surface on first flange part and second flange part and side to bat printing mode respectively, and being formed has L
The film of type structure carries out wet type to the film surface and is electroplated to form uniform metal electrode layer after combustion knot solidification, with
It is formed on first flange part and states the first external electrode and the second external electrode, on second flange part described in formation
Third external electrode and the 4th external electrode.
It is following that above-mentioned winding type coil component and its manufacturing method are further described in conjunction with specific embodiments.
Embodiment one:
As shown in Figure 1, the winding type coil component of the embodiment of the present invention one includes core 1, the first external electrode 2A, second
External electrode 2B, third external electrode 2C, the 4th external electrode 2D, the first wire rod 3A, the second wire rod 3B and magnetic closure 4, wherein core
Portion 1 includes coiling central part 10 and is connected to first flange part 11 and the second flange part 12 at 10 both ends of coiling central part, around
At the link position of line central part 10 and the first flange part 11 and coiling central part 10 and the second flange part 12 link position
Place is respectively equipped with support portion 13；The first flange part 11 and the second flange part 12 is arranged in by adhesive bond in magnetic closure 4
On top surface.
First wire rod 3A and the second wire rod 3B uses double-deck winding mode respectively on coiling central part 10, simultaneously
First wire rod 3A and the second wire rod 3B keeping parallelism or substantially parallel each other, and it is convex to be separately fixed at the first flange part 11 and second
On four external electrode 2A~2D of edge 12.It is respectively equipped with the first external electrode 2A and the second external electrode 2B on first flange part 11,
Be respectively equipped with third external electrode 2C and the 4th external electrode 2D on second flange part 12, wherein the access port of the first wire rod 3A respectively with
The first external electrode 2A is connected with third external electrode 2C, the access port of the second wire rod 3B respectively with the second external electrode 2B and the 4th dispatch from foreign news agency
Pole 2D connection.First wire rod 3A is wound mainly around coiling central part 10, is wound always from the side of neighbouring first flange part 11
To the second flange part 12 of the other end side and both ends be separately fixed on the first external electrode 2A and third external electrode 2C to
The first layer for forming abutting coiling central part 10 is the first winding layers；Outside of the second wire rod 3B mainly around the first winding layers
The side and both ends for being wound into the second neighbouring flange part 22 always from the side of the first neighbouring flange part 11 are separately fixed at
On the second external electrode 2B and the 4th external electrode 2D, the second winding layers are formed, constitute double-layer structure.
The winding type coil component of the present embodiment is characterized in that facilitate the first wire rod 3A's and the second wire rod 3B
The support portion 13 of the double-deck winding structure, in the present embodiment, the support portion 13 are specially ramp structure, the slope of the ramp structure
Angle between coiling central part is 110 °~130 °, can effectively prevent two winding layers occur collapsing line or disorderly around show
As, while improving the magnetic coupled phenomenon between two groups of wire rods.In the present embodiment, in coiling central part 10 and the first flange part 11
Link position at and at the link position of coiling central part 10 and the second flange part 12 be respectively equipped with support portion 13 so that
One wire rod 3A and the second wire rod 3B can be wound since any end in 12 end of 11 end of the first flange part or the second flange part,
Facilitate operation；And in some other embodiment, it can also be only in the link position of coiling central part 10 and the first flange part 11
Place or at the link position of coiling central part 10 and the second flange part 12 in be wherein equipped with support portion 13 at one, at this time only
The first wire rod 3A and the second wire rod 3B need to be wound since the one end for being equipped with support portion 13.
Fig. 2 is that the cross-sectional view of winding type coil component in the present embodiment uses black and white in order to clearly illustrate
Circle represents the first wire rod 3A and the second wire rod 3B, and wherein black circles represent the cross section of the first wire rod 3A, and white circular
Circle represents the cross section of the second wire rod 3B.Wherein the number in each black and white circle represents line corresponding with the circle
The sequence circle number of circle.
As shown in Fig. 2, the first wire rod 3A is directly wound in above coiling central part 10, the mode of winding are as follows: First Line
In place of material 3A is tightly around the connection of coiling central part 10 and support portion 13, i.e., first close to the slope bottom of the first flange part 11, simultaneously also
10 surface of coiling central part is contacted, winding clamp clamps entire core 1 and starts to rotate clockwise at this time, such as First Line in Fig. 2
Material 3A, which takes advantage of a situation, winds first lap 3A1, then continues to be wound the first winding layers to the direction of the second flange part 12；Simultaneously
When the first wire rod 3A leans against slope and 10 surface of coiling central part, first lap 3A1 of the second wire rod 3B tightly around the first wire rod 3A
Between support portion 13, namely rely on the slope of the first flange part 11 and coiling central part 10, and by first lap 3B1's
Side relies on the side of slope, and side leans against on the first lap 3A1 of the first wire rod 3A, is wrapped in the as winding clamp rotates
Except one wire rod 3A, and continue to wind to the direction of the second flange part 12, forms the second winding layers.
Particularly, as shown in Fig. 2, the first wire rod 3A is connect due to the first flange part 11 with coiling central part 10 in coiling
The slope of the support portion 13 at place is designed so that first lap 3A1 abut against on slope bottom and 10 surface of coiling central part, and this
The first lap 3B1 of two wire rod 3B is then just fallen on the mountain valley between the first wire rod 3A first lap 3A1 and slope.
In above-mentioned canoe, since the first flange part 11 and the slope design of the junction of coiling central part 10 make
The winding initial position for obtaining the second wire rod 3B is located at before the first wire rod 3A, and closer to the first flange part 11, therefore second encloses 3B2
It is in contact close to the second circle 3A2 and with 3B1；That is, second circle 3A2 and 3B2 contact each other, therebetween in
The heart is apart from very little.Third circle and later respectively circle 3A3~3A14 contact, center each other without exception in the same manner as 3B3~3B14
Distance is minimum.Therefore, the magnetic coupling effect between the first wire rod 3A and the copper wire of the second wire rod 3B is obvious.
In above-mentioned winding structure, the first wire rod 3A, which is always positioned at below the second wire rod 3B, forms the first winding layers, institute
State two groups of wire rods by reliably and come the slope between the first flange part 11, the second flange part 12 and coiling central part 10 (branch
Support part 13) on, subsequent each circle is wound in the way of being similar to first lap, and is mutually close to carry out with previous circle respectively
Winding.That is: the first lap 3A1 of the first wire rod 3A is the first wire rod in place of the connection tightly around coiling central part 10 and support portion 13
The second circle 3A2 of 3A is until last lap 3A14 is along coiling central part 10 and coiling center is close in mutually abutting winding formation
First winding layers in portion 10, the both ends of the first wire rod 3A are separately connected the first external electrode 2A and third external electrode 2C；Second wire rod
For the first lap 3B1 of 3B tightly around between the first lap 3A1 and support portion 13 of the first wire rod 3A, the second circle 3B2 of the second wire rod 3B is straight
It is to be close to along the first winding layers and mutually wind the second winding layers for forming the first winding layers of abutting to last lap 3B14,
In the second wire rod 3B n-th circle be wound on the first wire rod 3A (n-1)th circle and the first wire rod 3A n-th circle formed mountain valley
In, the both ends of n >=2, the second wire rod 3B are separately connected the second external electrode 2B and the 4th external electrode 2D.
The method of the winding type coil component of manufacture the present embodiment is described in detail below.
First by magnetisable material forming, sintering, so that being formed has coiling central part 10, the first flange part 11 and second convex
Edge 12, there are also with important booster action and be separately positioned on the first flange part 11 and coiling central part 10 link position,
And second flange part 12 and the link position of coiling central part 10 the core 1 that is formed of support portion 13.As shown in Figure 1, first
The first external electrode 2A and the second external electrode 2B on flange part 11 and outside the third external electrode 2C and the 4th of the second flange part 12
The production method of electrode 2D are as follows: coated on the bottom surface and side of the first flange part 11 and the second flange part 12 using bat printing mode
Silver paste forms the film with L-type structure and passes through sintering curing, then carries out wet type plating to the film surface to be formed uniformly
Metal electrode layer, to form four external electrode 2A~2D with L-type electrode structure.
Then coiling can be carried out on core 1, spooling step mainly has three hanging wire, coiling, welding processes.
As shown in figure 3, first first inserting end hanging wire, is positioning operation when coiling starts.By the first wire rod 3A and the second line
Material 3B is fixed on spooling equipment positioning stitch P1, P2；Then by guiding needle mouth N1, N2 by the first wire rod 3A and the second wire rod
3B leads to the core 1 clamped by winding clamp；Then, the first wire rod 3A and the second wire rod 3B are respectively placed in the first dispatch from foreign news agency
On pole 2A and the second external electrode 2B, thus combine the first wire rod 3A and the second wire rod 3B with the first flange part 11 of core 1,
Guidance needle mouth N1, N2 is placed in position as shown in Figure 3 at this time.
As shown in figure 4, then carrying out winding process, the winding clamp by accompanying core 1 rotates clockwise 90 °, will
Two groups of wire rods synchronize winding operation, and the first wire rod 3A is contacted with the coiling central part 10 in core 1 and with first at this time
The ramp interface of support portion 13 on flange part 11；The topside contacts of second wire rod 3B and the first wire rod 3A simultaneously, also with first
The ramp interface of the support portion 13 of flange part 11.At this point, two groups of wire rods are positioned, so that the first wire rod 3A and the second wire rod 3B
First lap 3A1,3B1 are depended on the slope with support portion 13, the first lap 3A1 of the first wire rod 3A both with coiling central part
The contact of 10 surfaces, and contacts with 13 surface of slope, the first lap 3B1 of the second wire rod 3B both first lap 3A1 with the first wire rod 3A
Side contact, and contacted with 13 surface of slope.
As shown in figure 5, core 1 is rotated clockwise together with winding clamp, so that two groups of wire rods are shoulder to shoulder
It synchronizes and is wound on coiling central part 10, and make the topside contacts of the second wire rod 3B and the first wire rod 3A.In winding
In the process, two groups of guidance needle mouth N1, N2 are moved along the centerline direction of the coiling central part 10 of core 1, and it is convex to move to second
12 direction of edge.Using such winding mode, by two groups of material winds to coiling central part 10, along in core 1 first
One side of flange part 11 is wound to 12 direction of the second flange part, and makes not to be spaced between line and line.Under such winding mode, the
One wire rod 3A is directly wound on the surface of coiling central part 10, and the second wire rod 3B then passes through the auxiliary of support portion 13, winding
The first wire rod 3A outside and contact.And since the n-th circle of the second wire rod 3B is wound on the of the first wire rod 3A
In mountain valley between n-1 circle and the n-th circle, after the n-th of the first wire rod to be enclosed to the (n-1)th circle winding of the first wire rod of abutting, horse
On can position the n-th circle of the second wire rod 3B of winding, the synchronous winding of a pair of of wire rod can be realized, and reach with the spacing between circle
To minimum, improve magnetic coupling performance to the maximum extent, additionally, due to be mutually close between each circle and mutually support (the first wire rod and
The first lap of second wire rod rely on support portion 13 support), thus be difficult to happen very much winding collapse or disorderly around.
As shown in fig. 6, outlet hanging wire is finally carried out, with the setting of two groups of material winds circle numbers, when two groups of wire rods are last
When one circle copper wire 3A14 and 3B14 reaches the second 12 front of flange part, stop the rotation of winding clamp, and mobile guidance needle mouth N1,
Two groups of wire rods are respectively connected to be oriented on positioning stitch P3, P4 of outlet, so that the first wire rod 3A and the second wire rod by N2
3B is combined with third external electrode 2C, the 4th external electrode 2D on the second flange part 12 respectively, and two groups of wire rods are close each other at this time
Contact and balance fabulous, it is difficult to collapse line and disorderly around phenomenon.
The last welded access port by the first wire rod 3A and the second wire rod 3B is separately fixed at the first flange part 11 and the
On 4 external electrode 2A~2D in two flanges portion 12, as shown in fig. 7, forming the core 1 wound.Finally by magnetic closure 4 with
The core 1 for winding wire rod is fixed together by glue.First in the first flange part 11 of core 1 and the second flange part
A drop glue on 12 back side two-end-point, then magnetic closure 4, which is fitted on the end face, bonds magnetic closure 4 with core 1,
Complete the assembling of winding type coil component；Then assembled product is put into oven again and is toasted, after baking
Satisfactory winding type coil component is obtained, as shown in Figure 1.
Embodiment two:
The present embodiment and the difference of embodiment one are only that the structure of the support portion 13 in the present embodiment uses Step-edge Junction
Structure, as shown in figure 8, wherein the size of the width of step and height is more excellent respectively between the radius and diameter of the first wire rod 3A
In the scheme of choosing, the width of step and the size of height are equal to the diameter of the first wire rod 3A.
In winding process, the first lap 3A1 of the first wire rod 3A tightly around coiling central part 10 and support portion 13 connection it
Locate (i.e. the lower section of step) winding, the first lap 3A1 of the first wire rod 3A is contacted with 10 surface of coiling central part at this time, but with support
Portion 13 (downside of step) contact；First lap 3A1 and support portion of the first lap 3B1 of second wire rod 3B tightly around the first wire rod 3A
It is wound between 13 (i.e. the tops of step), i.e. the first lap 3B1 of the second wire rod 3B is wrapped in the top of step；First wire rod 3A's
Second circle 3A2 to last lap 3A14 along coiling central part 10 and is mutually close to that winding forms abutting coiling central part 10
Second circle 3B2 to last lap 3B14 of one winding layers, the second wire rod 3B is close to along the first winding layers and mutually wind formation
Be close to the second winding layers of the first winding layers, wherein the second wire rod 3B n-th circle be wound on the first wire rod 3A (n-1)th circle and
In the mountain valley that n-th circle is formed, n >=2.
Other structures and manufacturing method are the same as example 1, the winding type coil component of the present embodiment similarly and
As embodiment one, the spacing between the first wire rod 3A and the same circle number of the second wire rod 3B minimizes, and allows a pair of of wire rod
Same circle between magnetic coupling aspect of performance be excellent in, and each circle of wire rod can be mutually close in winding process
Support, thus be difficult to happen winding collapse or disorderly around.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those skilled in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several equivalent substitute or obvious modifications can also be made, and performance or use is identical, all answered
When being considered as belonging to protection scope of the present invention.
Claims (2)
1. a kind of manufacturing method of winding type coil component, which comprises the following steps:
The coiling central part winding that first wire rod and the second wire rod are surrounded to core simultaneously, wherein in the coiling central part
Both ends are connected with the first flange part and the second flange part, at the link position of the coiling central part and first flange part
And/or support portion is equipped at the link position of the coiling central part and second flange part, the support portion is step
Structure, the width of the step of the step structure and the size of height are respectively in the radius and the First Line of first wire rod
Between the diameter of material；
First external electrode and the second external electrode is formed on first flange part, is formed outside third on second flange part
Electrode and the 4th external electrode；
The first lap of first wire rod is wound tightly around the connection place of the coiling central part and the support portion, and described second
The first lap of wire rod is wound tightly around between the first lap and the support portion of first wire rod, forms described the to wind simultaneously
The first lap of the first lap of one wire rod and second wire rod；
N-th circle of first wire rod is wound along the (n-1)th circle that the coiling central part is close to first wire rod, and described the
N-th circle of two wire rods is wound in the mountain valley that the (n-1)th circle of first wire rod and the n-th circle of first wire rod are formed and tight
The (n-1)th circle of second wire rod is pasted, to wind the n-th circle and the n-th of second wire rod for forming first wire rod simultaneously
Circle, n >=2 are completed until the last lap of first wire rod and the second wire rod is wound；The first lap of first wire rod is extremely
Last lap forms the first winding layers for being close to the coiling central part, and first lap to the last lap of second wire rod is formed
It is close to the second winding layers of first winding layers；
The both ends of first wire rod are separately connected on the first external electrode and the third external electrode, by second line
The both ends of material are connected on the second external electrode and the 4th external electrode；
Magnetic closure is fixedly connected on the core.
2. the manufacturing method according to claim 1, which is characterized in that formed outside described first on first flange part
Electrode and the second external electrode form the step of the third external electrode and the 4th external electrode on second flange part
Suddenly it specifically includes:
Using bat printing mode, silver paste, shape are coated in the bottom surface on first flange part and second flange part and side respectively
At the film with L-type structure, wet type is carried out to the film surface after combustion knot solidification and is electroplated to form uniform metal electrode layer,
The first external electrode and the second external electrode are stated to be formed on first flange part, forms institute on second flange part
State third external electrode and the 4th external electrode.
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| CN106590345A (en) * | 2016-12-19 | 2017-04-26 | 深圳顺络电子股份有限公司 | Magnetic glue and inductor device using same |
| JP6819314B2 (en) * | 2017-01-23 | 2021-01-27 | Tdk株式会社 | Common mode filter and its manufacturing method |
| JP6766697B2 (en) * | 2017-03-07 | 2020-10-14 | 株式会社村田製作所 | Coil parts |
| CN107123534A (en) * | 2017-06-15 | 2017-09-01 | 庆邦电子元器件(泗洪)有限公司 | A kind of preparation method for the transformer for improving yield |
| CN108962560B (en) * | 2018-09-07 | 2024-04-12 | 广州金升阳科技有限公司 | Sheet-type wound transformer, manufacturing method thereof and micro-power module power supply comprising sheet-type wound transformer |
| CN112562969A (en) * | 2020-12-28 | 2021-03-26 | 湖州南浔百迪电子商务有限公司 | E-shaped inductance framework |
| JP7416023B2 (en) | 2021-07-28 | 2024-01-17 | 株式会社村田製作所 | coil parts |
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| CN101449346B (en) * | 2007-02-05 | 2012-07-18 | 株式会社村田制作所 | Winding type coil and its winding method |
| JP4796560B2 (en) * | 2007-10-11 | 2011-10-19 | 太陽誘電株式会社 | Wire-wound coil parts |
| SG10201401882RA (en) * | 2014-04-28 | 2015-11-27 | Delta Electronics Int’L Singapore Pte Ltd | Choke |
| JP6578630B2 (en) * | 2014-06-19 | 2019-09-25 | Tdk株式会社 | Coil component and manufacturing method thereof |
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