CN106229107A - A kind of winding type coil parts and manufacture method thereof - Google Patents
A kind of winding type coil parts and manufacture method thereof Download PDFInfo
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- CN106229107A CN106229107A CN201610796431.2A CN201610796431A CN106229107A CN 106229107 A CN106229107 A CN 106229107A CN 201610796431 A CN201610796431 A CN 201610796431A CN 106229107 A CN106229107 A CN 106229107A
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- external electrode
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- circle
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
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- 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
- 239000002002 slurry Substances 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
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- 238000010168 coupling process Methods 0.000 abstract description 7
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 229910052802 copper Inorganic materials 0.000 description 2
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Classifications
-
- 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
Abstract
The invention discloses a kind of winding type coil parts and manufacture method thereof, winding type coil parts include 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, is provided with supporting part 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；In place of the first lap of the first wire rod is the connection tightly around coiling central part and supporting part, the first lap of the second wire rod is tightly around between first lap and the supporting part of the first wire rod, each circle of the first wire rod and the second wire rod is the most mutually close to winding and is formed the first winding layers and the second winding layers, and the two ends of the first wire rod and the second wire rod connect external electrode respectively；Magnetic closure is fixedly connected on core.Between the same number of turns of a pair wire rod in the winding type coil parts of the present invention and manufacture method thereof, spacing reduces, magnetic coupling sex expression excellent and be difficult to occur winding to cave in or disorderly around.
Description
Technical field
The present invention relates to a kind of winding type coil parts and manufacture method thereof.
Background technology
Winding type coil is widely used in high-speed serial data transmission, wherein common mode choke coil, is connecting two sons
During the differential lines cable of system, apply the most universal.This coil component has a pair coil 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 the wire rod number of turns and phase
Position is all identical, and when having normal current flowing through coil in circuit, electric current produces in the inductance coil of same phase coiling
Opposing magnetic field so cancelling out each other, the resistance that now normal signal electric current is mainly caused because of leakage inductance by Resistance Influence in wire rod and minority
Buddhist nun；When there being common mode current flowing through coil, due to the same tropism of electric current, magnetic field in the same direction can be produced in coil and increase coil
Induction reactance, makes coil show as high impedance, produces stronger damping, with this attenuation common-mode electric current, reaches the purpose of filtering.Pass
System common mode choke coil often exists when signal is by coil, difference mode signal be partly converted into common-mode signal, common mode is believed
Number the situation being partly converted into difference mode signal, referred to as patten transformation phenomenon.Owing to the existence of patten transformation phenomenon makes existing
In some common mode choke coils, there is radiated noise or the problem of anti-interference reduction.
In order to preferably overcome the problem that patten transformation brings, patent documentation CN1624828A discloses a kind of being total to
Mould choking-winding, structure allows the differential signal of difference cabling pass through, and eliminates intrusive mood common mode noise；This loop construction is:
First wire rod is wrapped in coil core, and is fixed on the external electrode of two flange parts, and the second material winds is on the first wire rod
Face forms upper and lower hierarchy and is fixed on flange part external electrode, technique uses the first and second wire rods synchronize in pairs to be wound around
Core forms.In order to prevent the second layer wire rod from slumping in the first wire rod, first by the first wire rod and second in this patent documentation
First lap 3A1,3B1 of wire rod side by side, as the beginning of ground floor, owing to the first wire rod and the second wire rod are simultaneously wound at volume
Core central authorities, therefore the second circle 3A2 of the first wire rod is positioned at the downstream of first lap 3B1 of the second wire rod, and the of the second wire rod
Two circle 3B2 are positioned at the first lap 3A1 of the first wire rod and the top of the first lap 3B1 of the second wire rod, as shown in Figure 9.Use this kind
During winding mode, the distance between the first wire rod and second wire rod of the second circle and hereafter each circle is relatively large, the first wire rod with
Magnetic coupling between second wire rod can reduce, and patten transformation is that the probability of noise is high, is not preferable noise reduction.
The disclosure of background above technology contents is only used for assisting design and the technical scheme understanding the present invention, and it is not necessarily
Belong to the prior art of present patent application, do not have tangible proof show foregoing present patent application the applying date
In the case of Gong Kai, above-mentioned background technology should not be taken to evaluate novelty and the creativeness of the application.
Summary of the invention
For solving above-mentioned technical problem, the present invention proposes a kind of spacing reduction, magnetic coupling between the same number of turns of a pair wire rod
Close sex expression excellent and be difficult to occur winding to cave in or disorderly around winding type coil parts and manufacture method.
For reaching above-mentioned purpose, the present invention by the following technical solutions:
The invention discloses a kind of winding type coil parts, including core, the first external electrode, the second external electrode, the 3rd
External electrode, the 4th external electrode, the first wire rod, the second wire rod and magnetic closure, wherein: described core include coiling central part with
And it is connected to the first flange part and second flange part at described coiling central part two ends, at described coiling central part and described first
It is provided with support at the link position of flange part and/or at the described coiling central part link position with described second flange part
Portion；Described the first external electrode and described the second external electrode are separately positioned on described first flange part, described 3rd external electrode and institute
State the 4th external electrode and be separately positioned on described second flange part；The first lap of described first wire rod is tightly around described coiling central part
In place of connection with described supporting part, the second circle of described first wire rod is until last lap is along described coiling central part also
Mutually being close to winding and form the first winding layers being close to described coiling central part, the two ends of described first wire rod connect described respectively
The first external electrode and described 3rd external electrode；The first lap of described second wire rod is tightly around the first lap of described first wire rod and described
Between supporting part, the second circle of described second wire rod is until last lap is along described first winding layers and to be mutually close to winding
Forming the second winding layers being close to described first winding layers, the n-th circle of wherein said second wire rod is to be wound on described First Line
In the mountain valley that (n-1)th circle of material and the n-th circle of described first wire rod are formed, n >=2, the two ends of described second wire rod connect respectively
Described the second external electrode and described 4th external electrode；Described magnetic closure is fixedly connected on described core.
Preferably, described supporting part is ramp structure or ledge structure.
Preferably, the angle between slope and the described coiling central part of described ramp structure is 110 °～130 °.
Preferably, the width of the step of described ledge structure and height size respectively described first wire rod radius and
Between the diameter of described first wire rod.
Preferably, described the first external electrode, described the second external electrode, described 3rd external electrode and described 4th external electrode divide
Wei L-type electrode structure.
The invention also discloses the manufacture method of a kind of winding type coil parts, comprise the following steps: by the first wire rod and
Second wire rod is wound around around the coiling central part of core simultaneously, wherein connect at the two ends of described coiling central part have first convex
Edge and the second flange part, at the described coiling central part link position with described first flange part and/or in described coiling
Central part is provided with supporting part at the link position of described second flange part；Described first flange part is formed the first external electrode
And the second external electrode, described second flange part is formed the 3rd external electrode and the 4th external electrode；The first of described first wire rod
Being wound around in place of enclosing the connection tightly around described coiling central part and described supporting part, the first lap of described second wire rod is tightly around described the
It is wound around between first lap and the described supporting part of one wire rod, to wind the first lap forming described first wire rod and described the simultaneously
The first lap of two wire rods；N-th circle of described first wire rod is close to the (n-1)th circle of described first wire rod along described coiling central part
Being wound around, the n-th circle of the (n-1)th circle and described first wire rod that the n-th circle of described second wire rod is wound on described first wire rod is formed
Mountain valley in and be close to the (n-1)th circle of described second wire rod, to wind the n-th circle and described the forming described first wire rod simultaneously
N-th circle of two wire rods, n >=2, until having wound the last lap of described first wire rod and the second wire rod；Described First Line
The first lap of material forms the first winding layers being close to described coiling central part to last lap, and the first lap of described second wire rod is extremely
Last lap forms the second winding layers being close to described first winding layers；The two ends of described first wire rod are connected respectively described
On one external electrode and described 3rd external electrode, the two ends of described second wire rod are connected to described the second external electrode and described
On 4th external electrode；Magnetic closure is fixedly connected on described core.
Preferably, described supporting part is ramp structure or ledge structure.
Preferably, the angle between slope and the described coiling central part of described ramp structure is 110 °～130 °.
Preferably, the width of the step of described ledge structure and height size respectively described first wire rod radius and
Between the diameter of described first wire rod.
Preferably, described first flange part forms described the first external electrode and described the second external electrode, described
The step forming described 3rd external electrode and described 4th external electrode in two flanges portion specifically includes:
Bat printing the mode bottom surface on described first flange part and described second flange part and side respectively is used to coat silver
Slurry, forms the thin film with L-type structure, described film surface carries out after combustion knot solidification wet type plating and forms uniform metal electricity
Pole layer, states the first external electrode and described the second external electrode, on described second flange part to be formed on described first flange part
Form described 3rd external electrode and described 4th external electrode.
Compared with prior art, the beneficial effects of the present invention is: the winding type coil parts of the present invention rely primarily on around
The supporting part that the junction of line central part and the junction of the first flange part and/or coiling central part and the second flange part is arranged,
Make the volume that the first wire rod and the second wire rod wire rod in winding process in corresponding winding layers is parallel or substantially parallel
Around, this supporting part makes the spacing between the same number of turns of a pair wire rod reduce to greatest extent effectively, allows the same of a pair wire rod
Magnetic coupling aspect of performance performance excellence between circle；And each circle of wire rod is the most mutually close to support in winding process, thus
Be difficult to occur winding to cave in or disorderly around.The manufacture method of the winding type coil parts of the present invention, owing to making the first wire rod and
The first lap of two wire rods is close to supporting part respectively and winds to reach the effect supported, and the winding of follow-up each circle has previous
Enclose and wind as supporting, it is possible to achieve between both threads material winds simultaneously and can keep between the same number of turns of a pair wire rod
Away from reducing to greatest extent, make the magnetic coupling aspect of performance performance between the same circle of a pair wire rod excellent；And each circle of wire rod
Winding process is the most mutually close to support, thus be difficult to occur winding to cave in or disorderly around.
In further scheme, supporting part uses ramp structure or ledge structure, and ramp structure uses slope further
And between coiling central part, angle is 110 °～130 °, and the width of the step of ledge structure and height are the most respectively at wire rod
Between radius and diameter so that the first lap winding process of the second wire rod just can be wound on the first wire rod first lap and
Between supporting part, and the n-th circle of the second wire rod can be wound in the (n-1)th circle of the first wire rod and the mountain valley of the n-th circle formation,
Thus allow the spacing between the first wire rod and the same number of turns of the second wire rod reduce, and wind effective, it is difficult to occur winding to collapse
Collapse or wind.
In further scheme, each electrode all uses L-type electrode structure, and each electrode first passes through bat printing, then warp
Oversintering solidifies, and the plating of last wet type is formed, and connects more firm, and cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the winding type coil parts of the embodiment of the present invention one；
Fig. 2 is the cross-sectional schematic cut open along line A-A in Fig. 1；
Fig. 3 is to manufacture the positioning action schematic diagram when coiling of winding type coil parts of the embodiment of the present invention one starts；
Core after Fig. 4 is Fig. 3 step turns clockwise the side schematic view of 90 °；
Fig. 5 be Fig. 4 step after core turn clockwise after material winds at the side schematic view of coiling central part；
Fig. 6 be Fig. 5 step after the first wire rod and the second wire rod terminate end location schematic diagram；
Fig. 7 is the signal access port of the first wire rod and the second wire rod being separately fixed on external electrode after Fig. 6 step
Figure；
Fig. 8 is the cross-sectional schematic of the winding type coil parts of the embodiment of the present invention two；
Fig. 9 is the cross-sectional schematic of winding type coil parts of the prior art.
Detailed description of the invention
Below against accompanying drawing and combine preferred embodiment the invention will be further described.
The preferred embodiments of the present invention disclose a kind of winding type coil parts, including core, the first external electrode, second
External electrode, the 3rd external electrode, the 4th external electrode, the first wire rod, the second wire rod and magnetic closure, wherein: described core includes
Coiling central part and be connected to the first flange part and second flange part at described coiling central part two ends, at described coiling center
At the link position of portion and described first flange part and/or at the link position of described coiling central part Yu described second flange part
Place is provided with supporting part；Described the first external electrode and described the second external electrode are separately positioned on described first flange part, and the described 3rd
External electrode and described 4th external electrode are separately positioned on described second flange part；The first lap of described first wire rod is tightly around described
In place of the connection of coiling central part and described supporting part, the second circle of described first wire rod until last lap be along described around
Line central part also is mutually close to wind form the first winding layers being close to described coiling central part, and the two ends of described first wire rod are divided
Do not connect described the first external electrode and described 3rd external electrode；The first lap of described second wire rod is tightly around the of described first wire rod
Between one circle and described supporting part, the second circle of described second wire rod is until last lap is along described first winding layers phase
Being close to winding mutually and form the second winding layers being close to described first winding layers, the n-th circle of wherein said second wire rod is to be wound on
In the mountain valley that (n-1)th circle of described first wire rod and the n-th circle of described first wire rod are formed, n >=2, the two of described second wire rod
End connects described the second external electrode and described 4th external electrode respectively；Described magnetic closure is fixedly connected on described core.
The preferred embodiments of the present invention also disclose the manufacture method of a kind of winding type coil parts, comprise the following steps:
First wire rod and the second wire rod are wound around, wherein at the two ends of described coiling central part around the coiling central part of core simultaneously
Connect and have the first flange part and the second flange part, at the link position of described coiling central part and described first flange part and/
Or it is provided with supporting part at the described coiling central part link position with described second flange part；Shape on described first flange part
Become the first external electrode and the second external electrode, described second flange part is formed the 3rd external electrode and the 4th external electrode；Described
The first lap of one wire rod is wound around tightly around in place of the connection of described coiling central part and described supporting part, the first of described second wire rod
Enclose and be wound around tightly around between first lap and the described supporting part of described first wire rod, form the of described first wire rod to wind simultaneously
One circle and the first lap of described second wire rod；N-th circle of described first wire rod is close to described first along described coiling central part
(n-1)th circle of wire rod is wound around, and the n-th circle of described second wire rod is wound on the (n-1)th circle and described First Line of described first wire rod
The n-th of material is enclosed in the mountain valley formed and is close to the (n-1)th circle of described second wire rod, forms described first wire rod to wind simultaneously
N-th circle and the n-th circle of described second wire rod, n >=2, until having wound the last lap of described first wire rod and the second wire rod
Become；The first lap of described first wire rod is formed to last lap is close to the first winding layers of described coiling central part, and described second
The first lap of wire rod forms the second winding layers being close to described first winding layers to last lap；Two ends by described first wire rod
Connect on described the first external electrode and described 3rd external electrode respectively, the two ends of described second wire rod are connected to described
On two external electrodes and described 4th external electrode；Magnetic closure is fixedly connected on described core.
In a further embodiment, described supporting part is ramp structure or ledge structure, the most specifically, and described slope
Angle between slope and the described coiling central part of structure is 110 °～130 °；The width of the step of described ledge structure and height
The size of degree is respectively between the radius and the diameter of described first wire rod of described first wire rod.
In a still further embodiment, described first flange part is formed outside described the first external electrode and described second
Electrode, the step forming described 3rd external electrode and described 4th external electrode on described second flange part specifically includes: use
Silver slurry is coated in bat printing the mode bottom surface on described first flange part and described second flange part and side respectively, is formed and has L
The thin film of type structure, after combustion knot solidification, carries out wet type plating and forms uniform metal electrode layer described film surface, with
Described first flange part is formed and states the first external electrode and described the second external electrode, described second flange part is formed described
3rd external electrode and described 4th external electrode.
Following in conjunction with specific embodiments above-mentioned winding type coil parts and manufacture method thereof are further described.
Embodiment one:
As it is shown in figure 1, the winding type coil parts of the embodiment of the present invention one include core 1, the first external electrode 2A, second
External electrode 2B, the 3rd 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 second flange part 12 at coiling central part 10 two ends, around
At the link position of line central part 10 and the first flange part 11 and at coiling central part 10 and the link position of the second flange part 12
Place is respectively equipped with supporting part 13；Magnetic closure 4 is arranged on the first flange part 11 and the second flange part 12 by adhesive bond
On end face.
First wire rod 3A and the second wire rod 3B uses double-deck winding mode to be wound on respectively on coiling central part 10, simultaneously
First wire rod 3A and the second wire rod 3B keeping parallelism each other or almost parallel, 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.The first external electrode 2A and the second external electrode 2B it is respectively equipped with on first flange part 11,
Be respectively equipped with the 3rd 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 and the 3rd external electrode 2C connect, 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 connects.First wire rod 3A is wound around mainly around coiling central part 10, is wound around from the side of neighbouring first flange part 11 always
Be separately fixed on the first external electrode 2A and the 3rd external electrode 2C to the side of the second flange part 12 of the other end and two ends thus
Formation is close to the ground floor of coiling central part 10 and is the first winding layers；Second wire rod 3B is mainly around the outside of the first winding layers
The side and the two ends that are wound into the second neighbouring flange part 22 from the side of the first neighbouring flange part 11 are separately fixed at always
On the second external electrode 2B and the 4th external electrode 2D, form the second winding layers, constitute double-decker.
Being characterized in that as facilitating the first wire rod 3A's and the second wire rod 3B of the winding type coil parts of the present embodiment
The supporting part 13 of double-deck winding structure, in the present embodiment, this supporting part 13 is specially ramp structure, the slope of this ramp structure
And the angle between coiling central part is 110 °～130 °, it is possible to effectively prevent two winding layers occur collapsing line or disorderly around show
As, improve the magnetic coupled phenomenon between two groups of wire rods simultaneously.In the present embodiment, at 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 supporting part 13 so that
One wire rod 3A and the second wire rod 3B can start winding in any one end from the first flange part 11 end or the second flange part 12 end,
Convenient operation；And in some other embodiment, it is also possible to only at coiling central part 10 and the link position of 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 provided with supporting part 13 at one, now only
Need to start from the one end being provided with supporting part 13 to wind the first wire rod 3A and the second wire rod 3B.
Fig. 2 is the sectional view of winding type coil parts in the present embodiment, in order to illustrate clearly, uses black and white
Circle represents the first wire rod 3A and the second wire rod 3B, and wherein black circles represents the cross section of the first wire rod 3A, and white circular
Circle represents the cross section of the second wire rod 3B.The line that digitized representation in the most each black and white circle is corresponding with this circle
The order number of turns of circle.
As in figure 2 it is shown, the first wire rod 3A is directly wound in above coiling central part 10, its mode being wound around is: First Line
In place of the material 3A connection tightly around coiling central part 10 and supporting part 13, i.e. first near at the bottom of the slope of the first flange part 11, go back simultaneously
Contact coiling central part 10 surface, now winding clamp is clamped whole core 1 and is started to turn clockwise, such as First Line in Fig. 2
Material 3A takes advantage of a situation and is wound around first lap 3A1, and then the direction to the second flange part 12 proceeds to be wound the first winding layers；Simultaneously
When the first wire rod 3A leans against slope with coiling central part 10 surface, the second wire rod 3B is tightly around the first lap 3A1 of the first wire rod 3A
And between supporting part 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 limit, slope, and side leans against on the first lap 3A1 of the first wire rod 3A, rotates along with winding clamp and is wrapped in the
Outside one wire rod 3A, and proceed to the direction of the second flange part 12 to be wound around, form the second winding layers.
Especially, as in figure 2 it is shown, the first wire rod 3A is connected with coiling central part 10 due to the first flange part 11 when coiling
The slope design of the supporting part 13 at place so that first lap 3A1 abut against at the bottom of slope with on coiling central part 10 surface, and this
The first lap 3B1 of two wire rod 3B the most just falls on the mountain valley between the first wire rod 3A first lap 3A1 and slope.
In above-mentioned canoe, design due to the slope of the first flange part 11 with the junction of coiling central part 10 and make
Before the winding original position of the second wire rod 3B is positioned at the first wire rod 3A, closer to the first flange part 11, therefore the second circle 3B2
Near the second circle 3A2 and with the contacting of 3B1；It is to say, second circle 3A2 with 3B2 contact each other, therebetween in
Heart distance is the least.3rd circle and respectively circle 3A3～3A14 and 3B3～3B14 similarly contact without exception each other, center
Distance is minimum.Therefore, the magnetic coupling effect between the copper cash of the first wire rod 3A and the second wire rod 3B is obvious.
In above-mentioned winding structure, the first wire rod 3A is always positioned at first winding layers that is formed below of the second wire rod 3B, institute
State two groups of wire rods by reliably and come between first flange part the 11, second flange part 12 and coiling central part 10 slope (
Support part 13) on, each circle subsequently is all wound by the mode being similar to first lap, and is mutually close to previous circle respectively carry out
Winding.That is: in place of the first lap 3A1 of the first wire rod 3A is the connection tightly around coiling central part 10 and supporting part 13, the first wire rod
3A second circle 3A2 until last lap 3A14 be along coiling central part 10 and mutually be close to wind formation be close to coiling center
First winding layers in portion 10, the two ends of the first wire rod 3A connect the first external electrode 2A and the 3rd external electrode 2C respectively；Second wire rod
The first lap 3B1 of 3B is tightly around between first lap 3A1 and the supporting part 13 of the first wire rod 3A, and the second circle 3B2 of the second wire rod 3B is straight
It is along the first winding layers and to be mutually close to winding and formed and be close to the second winding layers of the first winding layers to last lap 3B14, its
In n-th circle of the second wire rod 3B be that the 3A n-th of the (n-1)th circle and the first wire rod that are wound on the first wire rod 3A encloses the mountain valley formed
In, n >=2, the two ends of the second wire rod 3B connect the second external electrode 2B and the 4th external electrode 2D respectively.
Below the method for the winding type coil parts manufacturing the present embodiment is described in detail.
First shaped by magnetisable material, sintering, thus form that to have coiling central part the 10, first flange part 11 and second convex
Edge 12, also have important assosting effect and be separately positioned on the first flange part 11 and coiling central part 10 link position,
And second core 1 that formed of the supporting part 13 of flange part 12 and the link position of coiling central part 10.As it is shown in figure 1, first
Outside the first external electrode 2A on flange part 11 and the 3rd external electrode 2C and the 4th of the second external electrode 2B and the second flange part 12
The production method of electrode 2D is: use bat printing mode to coat on the first flange part 11 and the bottom surface of the second flange part 12 and side
Silver slurry, is formed and has the thin film of L-type structure and through sintering curing, then this film surface carries out wet type plating to be formed uniformly
Metal electrode layer, thus form four external electrode 2A～2D with L-type electrode structure.
The most just can carry out coiling on core 1, spooling step mainly has hanging wire, coiling, three processes of welding.
As it is shown on figure 3, first first inserting end hanging wire, it it is i.e. coiling positioning action when starting.By the first wire rod 3A and the second line
Material 3B is fixed on spooling equipment location stitch P1, P2；Then by guiding pin mouth N1, N2 by the first wire rod 3A and the second wire rod
3B causes the core 1 clamped by winding clamp；Then, the first wire rod 3A and the second wire rod 3B is respectively placed in the first dispatch from foreign news agency
On pole 2A and the second external electrode 2B, so that the first wire rod 3A and the second wire rod 3B is combined with the first flange part 11 of core 1,
Pin mouth N1, N2 is now guided to be placed in position as shown in Figure 3.
As shown in Figure 4, then carry out winding process, turn clockwise 90 ° by accompanying the winding clamp of core 1, will
Two groups of wire rods carry out synchronizing wire winding operation, and now the first wire rod 3A contacts and with first with the coiling central part 10 in core 1
The ramp interface of the supporting part 13 on flange part 11；Second wire rod 3B and the topside contacts of the first wire rod 3A simultaneously, also with first
The ramp interface of the supporting part 13 of flange part 11.Now, by two groups of wire rod location so that the first wire rod 3A's and the second wire rod 3B
First lap 3A1,3B1 depend on the slope with supporting part 13, the first lap 3A1 of the first wire rod 3A both with coiling central part
10 surfaces contacts, contact with surface, slope 13 again, the first lap 3B1 of the second wire rod 3B both with the first lap 3A1 of the first wire rod 3A
Contacts side surfaces, contact with surface, slope 13 again.
As it is shown in figure 5, core 1 is rotated clockwise together with winding clamp so that two groups of wire rods are shoulder to shoulder
Synchronization is wound on coiling central part 10, and makes the second wire rod 3B and the topside contacts of the first wire rod 3A.Be wound around
During, two groups guide pin mouth N1, N2 to move along the centerline direction of the coiling central part 10 of core 1, move to second convex
Direction, edge 12.Use this kind of winding mode, by two groups of material winds to coiling central part 10, in core 1 first
The side of flange part 11 is wound around to the second flange part 12 direction, and makes not to be spaced between line and line.Under this kind of 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 by the auxiliary of supporting part 13, is wound around
In the outside of the first wire rod 3A and contact.And owing to n-th circle of the second wire rod 3B is be wound on the first wire rod 3A the
In mountain valley between n-1 circle and the n-th circle, after the (n-1)th circle winding that the n-th circle of the first wire rod is close to the first wire rod, horse
Upper the n-th circle that just can position winding the second wire rod 3B, can realize a pair wire rod and synchronize winding, and reach with the spacing between circle
To minimum, to greatest extent improve magnetic coupling performance, additionally, due to be mutually close between each circle and mutually support (the first wire rod and
The first lap of the second wire rod relies on supporting part 13 and supports), thus be difficult to occur winding to cave in or disorderly around.
As shown in Figure 6, finally carry out end hanging wire, along with the setting of two groups of material winds number of turns, when two groups of wire rods are last
When one circle copper cash 3A14 Yu 3B14 arrives the second flange part 12 front, the rotation of stopping winding clamp, and mobile guiding pin mouth N1,
Two groups of wire rods are respectively connecting to out on location stitch P3, P4 of end guide so that the first wire rod 3A and the second wire rod by N2
3B combines with the 3rd external electrode 2C, the 4th external electrode 2D on the second flange part 12 respectively, and now two groups of wire rods are the tightst
Contact and balance fabulous, it is difficult to collapse line and unrest around phenomenon.
The most 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
On 4 external electrode 2A～2D in two flanges portion 12, as it is shown in fig. 7, form the core 1 wound.Finally by magnetic closure 4 with
The core 1 winding wire rod is fixed together by glue.First at the first flange part 11 and the second flange part of core 1
A glue on the back side two-end-point of 12, then magnetic closure 4 is fitted on this end face makes magnetic closure 4 bond with core 1,
Complete winding type coil parts to assemble；Toast in putting the product assembled into baking box the most again, after baking terminates
Obtain satisfactory winding type coil parts, as shown in Figure 1.
Embodiment two:
The present embodiment differs only in embodiment one, and the structure of the supporting part 13 in the present embodiment uses Step-edge Junction
Structure, as shown in Figure 8, wherein the width of step and the size of height are respectively between radius and the diameter of the first wire rod 3A, more excellent
In the scheme of choosing, the size of the width of step and height is 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 supporting part 13 connection it
Place (i.e. the lower section of step) is wound around, and now the first lap 3A1 of the first wire rod 3A contacts with coiling central part 10 surface, again with support
Portion 13 (downside of step) contacts；The first lap 3B1 of the second wire rod 3B is tightly around the first lap 3A1 of the first wire rod 3A and supporting part
Being wound around between 13 (i.e. the tops of step), the first lap 3B1 of the i.e. second wire rod 3B is wrapped in the top of step；First wire rod 3A's
Second circle 3A2 to last lap 3A14 is along coiling central part 10 and is mutually close to winding formation and is close to the of coiling central part 10
One winding layers, the second circle 3B2 to last lap 3B14 of the second wire rod 3B along the first winding layers and is mutually close to winding formation
Be close to the second winding layers of the first winding layers, wherein n-th circle of the second wire rod 3B be wound on the first wire rod 3A the (n-1)th circle and
In the mountain valley that n-th circle is formed, n >=2.
Other structure is all identical with embodiment one with manufacture method, the winding type coil parts of the present embodiment too and
As embodiment one, the spacing between the same number of turns of the first wire rod 3A and the second wire rod 3B reduces to greatest extent, allows a pair wire rod
Same circle between magnetic coupling aspect of performance performance excellence, and each circle of wire rod can mutually be close in winding process
Support, thus be difficult to occur winding to cave in or disorderly around.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.For those skilled in the art, do not taking off
On the premise of present inventive concept, it is also possible to make some equivalents and substitute or obvious modification, and performance or purposes are identical, all answer
When being considered as belonging to protection scope of the present invention.
Claims (10)
1. winding type coil parts, it is characterised in that include core, the first external electrode, the second external electrode, the 3rd dispatch from foreign news agency
Pole, the 4th external electrode, the first wire rod, the second wire rod and magnetic closure, wherein:
Described core includes coiling central part and the first flange part being connected to described coiling central part two ends and second convex
Edge, with described at described coiling central part with the link position of described first flange part and/or at described coiling central part
It is provided with supporting part at the link position of the second flange part；
Described the first external electrode and described the second external electrode are separately positioned on described first flange part, described 3rd external electrode and institute
State the 4th external electrode and be separately positioned on described second flange part；
In place of the first lap of described first wire rod is the connection tightly around described coiling central part and described supporting part, described First Line
Material second circle until last lap be along described coiling central part and mutually be close to wind formation be close to described coiling center
First winding layers in portion, the two ends of described first wire rod connect described the first external electrode and described 3rd external electrode respectively；
The first lap of described second wire rod tightly around between first lap and the described supporting part of described first wire rod, described second wire rod
Second circle until last lap be along described first winding layers and mutually be close to wind formation be close to described first winding layers
The second winding layers, wherein said second wire rod n-th circle be wound on described first wire rod (n-1)th circle and described First Line
In the mountain valley that n-th circle of material is formed, n >=2, the two ends of described second wire rod connect described the second external electrode and the described 4th respectively
External electrode；
Described magnetic closure is fixedly connected on described core.
Winding type coil parts the most according to claim 1, it is characterised in that described supporting part is ramp structure or step
Structure.
Winding type coil parts the most according to claim 2, it is characterised in that the slope of described ramp structure with described around
Angle between line central part is 110 °～130 °.
Winding type coil parts the most according to claim 2, it is characterised in that the width of the step of described ledge structure and
The size of height is respectively between the radius and the diameter of described first wire rod of described first wire rod.
5. according to the winding type coil parts described in any one of Claims 1-4, it is characterised in that described the first external electrode, institute
State the second external electrode, described 3rd external electrode and described 4th external electrode and be respectively L-type electrode structure.
6. the manufacture method of winding type coil parts, it is characterised in that comprise the following steps:
First wire rod and the second wire rod are wound around, wherein at described coiling central part around the coiling central part of core simultaneously
Two ends connect the first flange part and the second flange part, at the described coiling central part link position with described first flange part
And/or it is provided with supporting part at the described coiling central part link position with described second flange part；
Described first flange part is formed the first external electrode and the second external electrode, described second flange part is formed outside the 3rd
Electrode and the 4th external electrode；
The first lap of described first wire rod is wound around tightly around in place of the connection of described coiling central part and described supporting part, and described second
The first lap of wire rod is wound around tightly around between first lap and the described supporting part of described first wire rod, to wind formation described the simultaneously
The first lap of one wire rod and the first lap of described second wire rod；
The (n-1)th circle that n-th circle of described first wire rod is close to described first wire rod along described coiling central part is wound around, and described the
N-th circle of two wire rods is wound in the mountain valley of the (n-1)th circle of described first wire rod and the n-th circle formation of described first wire rod and tight
Paste the (n-1)th circle of described second wire rod, to wind the n-th circle and the n-th of described second wire rod forming described first wire rod simultaneously
Circle, n >=2, until having wound the last lap of described first wire rod and the second wire rod；The first lap of described first wire rod is extremely
Last lap forms the first winding layers being close to described coiling central part, and the first lap of described second wire rod to last lap is formed
It is close to the second winding layers of described first winding layers；
The two ends of described first wire rod are connected respectively on described the first external electrode and described 3rd external electrode, by described second line
The two ends of material are connected on described the second external electrode and described 4th external electrode；
Magnetic closure is fixedly connected on described core.
Manufacture method the most according to claim 6, it is characterised in that described supporting part is ramp structure or ledge structure.
Manufacture method the most according to claim 7, it is characterised in that the slope of described ramp structure and described coiling center
Angle between portion is 110 °～130 °.
Manufacture method the most according to claim 7, it is characterised in that the width of the step of described ledge structure and height
Size is respectively between the radius and the diameter of described first wire rod of described first wire rod.
10. according to the manufacture method described in any one of claim 6 to 9, it is characterised in that formed on described first flange part
Described the first external electrode and described the second external electrode, form described 3rd external electrode and the described 4th on described second flange part
The step of external electrode specifically includes:
Bat printing the mode bottom surface on described first flange part and described second flange part and side respectively is used to coat silver slurry, shape
Become there is the thin film of L-type structure, after combustion knot solidification, described film surface carried out wet type plating and forms uniform metal electrode layer,
State the first external electrode and described the second external electrode to be formed on described first flange part, described second flange part is formed institute
State the 3rd external electrode and described 4th external electrode.
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| CN108573800A (en) * | 2017-03-07 | 2018-09-25 | 株式会社村田制作所 | Coil component |
| CN108962560A (en) * | 2018-09-07 | 2018-12-07 | 广州金升阳科技有限公司 | Micropower modular power source of the chip around line transformer and its manufacturing method and comprising the 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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