CN205487740U - Coil and coil mounting substrate - Google Patents
Coil and coil mounting substrate Download PDFInfo
- Publication number
- CN205487740U CN205487740U CN201490000955.0U CN201490000955U CN205487740U CN 205487740 U CN205487740 U CN 205487740U CN 201490000955 U CN201490000955 U CN 201490000955U CN 205487740 U CN205487740 U CN 205487740U
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- coil
- conductive pattern
- sheet material
- resin sheet
- elongate
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- 239000000758 substrate Substances 0.000 title claims abstract description 24
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 71
- 238000004804 winding Methods 0.000 claims description 50
- 238000003466 welding Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 abstract description 141
- 239000011347 resin Substances 0.000 abstract description 141
- 238000004519 manufacturing process Methods 0.000 abstract description 55
- 239000004020 conductor Substances 0.000 abstract description 18
- 229920000106 Liquid crystal polymer Polymers 0.000 abstract description 7
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 abstract description 7
- 238000004080 punching Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 50
- 238000009434 installation Methods 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 229910000859 α-Fe Inorganic materials 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 239000011889 copper foil Substances 0.000 description 6
- 230000001629 suppression Effects 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
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
-
- 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
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
-
- 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
- H01F41/06—Coil winding
- H01F41/071—Winding coils of special form
- H01F41/073—Winding onto elongate formers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
-
- 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
- H01F2017/046—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 helical coil made of flat wire, e.g. with smaller extension of wire cross section in the direction of the longitudinal axis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The utility model provides a coil and coil mounting substrate, in the manufacturing method of the inductor component of coil conductor is rolled up to the resin substrate, resin sheet (21) that the preparation was formed by thermoplastic resin, be formed with conductor pattern (30) with the long and thin form that becomes the coil conductor on these resin sheet (21), as roughly being of thermoplastic resin such as liquid crystal polymer resin coil on core (22) of cuboid shape these resin sheet (21), make conductor pattern (30) use coil coiling axle to coil as the center. Stamping forming is heated to resin sheet (21) of coiling on core (22) in by heating punching machine (100). Therefore, the utility model provides a manufacturing method that can restrain the coil of the skew characteristic of hoping of coil characteristic with simple manufacturing method.
Description
Technical field
This utility model relates to coil and the coil mounting substrate of a kind of coiled conductor pattern.
Background technology
Patent Document 1 discloses by arranging coil conductive pattern and the multilayer coil component of via formation on magnet ceramic green sheet.After above-mentioned multilayer coil component is by crimping the magnetic ceramic green sheet arranging coil conductive pattern from the teeth outwards with the magnetic ceramic green sheet stacking being provided with extraction via, carry out burning till being formed.
In the case of patent documentation 1, in manufacturing process, raw cook arranges via and by after they stackings, need the operation carrying out thus obtained duplexer is carried out burn till, manufacture and need energy and time.
In patent documentation 2, disclose one and need not firing process, the method simply forming the inducer of transformator.Patent documentation 2 is configuration conductor line on film like dielectric base plate, winds this dielectric base plate, thus form bar-shaped coil on bar-shaped iron core.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2005-39187 publication
Patent documentation 2: Japanese Patent Laid-Open 9-320863 publication
Utility model content
Utility model technical problem to be solved
In the case of patent documentation 2, the film like dielectric base plate of configuration conductor line likely can occur position skew etc. relative to bar-shaped iron core, and coil shape easily has deviation, it is difficult to the characteristic desired by acquisition.
Therefore, the purpose of this utility model is to provide a kind of simple coil manufacture method, and this manufacture method can suppress coil characteristics to produce deviation with desired characteristic.
Solve the technical scheme of technical problem
This utility model provides the manufacture method of a kind of coil being wound with conductive pattern, it is characterised in that including: the operation of the sheet material that winding is formed by thermoplastic resin, is formed with the described conductive pattern of elongate on this sheet material；And the described sheet material after winding is heated stamped and formed operation.
In said structure, by winding the sheet material of thermoplastic resin, and it is added drop stamping, it is possible to manufacture coil, manufacturing process therefore can be made to become easy, shorten the manufacturing time of coil.Additionally, by adding drop stamping, thermoplastic resin the mutual thermal welding of sheet material formed integration, therefore, the coil shape after formation is not easy to produce deviation.It is as a result, it is possible to suppression coil characteristics produces deviation with desired characteristic.
In the operation winding described sheet material, it is preferably on core, winds described sheet material.
In said structure, by using core, the winding of sheet material becomes easy, therefore, it is possible to there is the problems such as skew during suppression coiled conductor pattern.
Described core is preferably and is formed by the thermoplastic resin with described sheet material identical type.
In said structure, because by sheet material and core thermal welding also integration, the coil shape more difficult generation deviation after formation.
In the operation winding described sheet material, the direction preferably making the long side direction of described conductive pattern orthogonal relative to the wireline reel direction of coil tilts to wind described sheet material.
In said structure, it is not necessary to increase coil diameter, it is possible to easily increase coil winding number, improve inductance value.Furthermore it is possible to while suppression coil becomes greatly on wireline reel direction, increase the width of conductive pattern, correspondingly, it is possible to reduce conductor resistance.
In the operation winding described sheet material, preferably wind described sheet material so that wind all some overlaps on the wireline reel direction of described coil every time.
In said structure, it is possible to while suppression coil becomes greatly on wireline reel direction, increase the winding number of coil, improve inductance value.
It is preferably, described sheet material is elongate, the long side direction of described conductive pattern making elongate as one man forms described conductive pattern with the long side direction of the described sheet material of elongate on described sheet material, the described sheet material of elongate and an end of described conductive pattern or two ends bend, part in the operation winding described sheet material, in addition to winding described sheet material and the one end except bending of described conductive pattern or two ends.
One end of the conductive pattern of said structure or two ends are formed from the prominent structure of the winding part of coil, therefore, using this end or two ends as coil terminals use time, become easier to the installation of coil substrate etc..
Utility model effect
Use this utility model, it is possible to use simple manufacture method, suppression coil characteristics to offset with desired characteristic.
Accompanying drawing explanation
Figure 1A is the axonometric chart representing the inductor element involved by embodiment 1.
Figure 1B is the sectional view of the I-I line of Figure 1A.
Fig. 1 C is the axonometric chart of the installed surface side representing inductor element.
Fig. 2 A is the figure of the manufacture method of inductor element represented in figure ia for explanation.
Fig. 2 B is the figure of the manufacture method of inductor element represented in figure ia for explanation.
Fig. 2 C is the figure of the manufacture method of inductor element represented in figure ia for explanation.
Fig. 2 D is the figure of the manufacture method of inductor element represented in figure ia for explanation.
Fig. 3 is the sectional view of the III-III line of Fig. 2 C.
Fig. 4 is to form the figure of the method for multiple inductor element for illustrating to cut an inductor element into pieces.
Fig. 5 A is the figure of the manufacture method for the inductor element involved by embodiment 2 is described.
Fig. 5 B is the figure of the manufacture method for the inductor element involved by embodiment 2 is described.
Fig. 5 C is the figure of the manufacture method for the inductor element involved by embodiment 2 is described.
Fig. 5 D is the figure of the manufacture method for the inductor element involved by embodiment 2 is described.
Fig. 6 A is the axonometric chart representing the inductor element involved by embodiment 3.
Fig. 6 B is the sectional view of the line VI--VI of Fig. 6 A.
Fig. 7 is to represent be formed with conductive pattern on surface and become the figure of resin sheet of resin base material.
Fig. 8 A is the figure of the manufacture method for the inductor element involved by embodiment 3 is described.
Fig. 8 B is the figure of the manufacture method for the inductor element involved by embodiment 3 is described.
Fig. 9 A is the figure of the manufacture method for the inductor element involved by embodiment 3 is described.
Fig. 9 B is the figure of the manufacture method for the inductor element involved by embodiment 3 is described.
Figure 10 A is the figure of the mounting means for the inductor element involved by embodiment 3 is described.
Figure 10 B is the figure of the mounting means for the inductor element involved by embodiment 3 is described.
Figure 10 C is the figure of the mounting means for the inductor element involved by embodiment 3 is described.
Figure 11 is to change the figure of the situation of the resin sheet of line part length for explanation winding on core.
Figure 12 A is the figure of the situation not using core winding resin sheet for explanation.
Figure 12 B is the figure of the situation not using core winding resin sheet for explanation.
Figure 13 A is the axonometric chart representing the transformator involved by embodiment 4.
Figure 13 B is the top view of the installed surface side of the transformator observed from the lower section of Figure 13 A.
Figure 14 is to represent be formed with conductive pattern on surface and become the figure of resin sheet of resin base material.
Figure 15 is the figure of the manufacture method for the inductor element involved by embodiment 4 is described.
Detailed description of the invention
Hereinafter, the preferred implementation for the manufacture method of the coil involved by this utility model is described with reference to the accompanying drawings.
(embodiment 1)
Figure 1A is the axonometric chart representing the inductor element involved by embodiment 1, and Figure 1B is the sectional view of the I-I line of Figure 1A, and Fig. 1 C is the axonometric chart of the installed surface side representing inductor element.The arrow A of Figure 1A represents the coil wireline reel of inductor element 1.
Inductor element 1 is formed by the conductive pattern wound around 30 along the resin base material 20 of substantially insulating properties in rectangular shape.Resin base material 20 is formed by the thermoplastic resins such as LCP resin (liquid crystal polymer resin) are added drop stamping.Thermoplastic resin is by using the LCP resin of low-k, it is possible to reduce the line capacitance of conductive pattern 30, it is also possible to shape at a lower temperature.As thermoplastic resin, such as, there are PEEK (polyether-ether-ketone), PEI (Polyetherimide), PPS (polyphenylene sulfide), PI (polyimides) etc., it is also possible to replace liquid crystal polymer resin with these.
Conductive pattern 30 winds centered by coil wireline reel A.Additionally, the direction coiled conductor pattern 30 obliquely that the long side direction of conductive pattern 30 is the most orthogonal with coil wireline reel A.As illustrated in figure ib, along an end bending of long side direction, the end of bending enters the lower section of another adjacent conductive pattern 30 to conductive pattern 30.Using said structure, even if widening the live width of conductive pattern 30, also can shorten the distance between conductive pattern 30, without making adjacent conductive pattern 30 contact with each other.
Additionally, by using the structure shown in Figure 1B, the size of inductor element 1 can be increased, just can increase the winding number of conductive pattern 30, improve the inductance value of inductor element 1.Furthermore it is possible to while suppression inductor element 1 becomes greatly on the direction of coil wireline reel A, increase the width of conductive pattern 30, the most correspondingly can reduce the conductor resistance of conductive pattern 30.
Additionally, as hereinafter illustrate, above-mentioned bending section is being formed when adding drop stamping in manufacturing process.
In addition, as shown in Figure 1 C, in order to make the two ends of the conductive pattern 30 being wound on resin base material 20 become installation electrode (terminal) 30M of inductor element 1, the surface element of the conductive pattern 30 in addition to becoming the part installing electrode 30M scribbles resist.Thus, the inductor element 1 of SMD (surface mount device) type is manufactured.
Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D are the figures of the manufacture method for inductor element as shown in Figure 1A is described.
The manufacture method of inductor element 1 is the most as shown in Figure 2 A, from the beginning of the operation of the resin sheet 21 preparing elongate, is formed with the conductive pattern 30 of elongate on the surface of this resin sheet 21.Resin sheet 21 is formed by the thermoplastic resin with resin base material 20 identical type.Conductive pattern 30 is by pasting such as Copper Foil on the most whole of resin sheet 21 interarea (in surface or the back side) in advance, and this copper foil pattern is formed.
Then, the manufacture method of inductor element 1 as shown in Figure 2 B, is wound the operation of resin sheet 21 on substantially core 22 in rectangular shape.Core 22 is the thermoplastic resin of liquid crystal polymer resin etc..On above-mentioned core 22, direction shown in the arrow of Fig. 2 B winds resin sheet 21, and cuts away the end of unwanted resin sheet 21.State now is as shown in Figure 2 C.
In Fig. 2 C, although winding 4 circle resin sheets 21 on core 22, the winding number of resin sheet 21 can be 1 circle, it is also possible to be multi-turn.Additionally, in figure, with conductive pattern 30 as outside, (opposition side of core 22) winds resin sheet 21, but can also inside and outside wind reversedly.
Fig. 3 is the sectional view of the III-III line representing Fig. 2 C.In Fig. 3, for convenience of explanation, the resin sheet being initially wound on core 22 and the conductive pattern that is formed on are designated as resin sheet 21A, conductive pattern 30A, resin sheet to be wound is designated as resin sheet 21B, 21C, 21D.Additionally, will be at resin sheet 21B, the conductive pattern of the upper formation of 21C, 21D is designated as conductive pattern 30B, 30C, 30D.
With reference to Fig. 3, the winding of resin sheet 21 is illustrated.First, core 22 winds resin sheet 21A.Then, winding resin sheet 21B makes it partly overlap with the resin sheet 21A having already wound around on core 22.In the present embodiment, winding resin sheet 21B makes the conductive pattern 30A formed on resin sheet 21A a part and the part of conductive pattern 30B formed on resin sheet 21B are overlapping.In addition it is also possible to winding resin sheet 21B makes the resin portion of only resin sheet 21A and resin portion (not forming the part of the conductive pattern) overlap of resin sheet 21B.
Hereinafter, similarly, winding resin sheet 21C makes a part of conductive pattern 30B and a part of overlapping of conductive pattern 30C.Further, winding resin sheet 21D makes a part of conductive pattern 30C and a part of overlapping of conductive pattern 30D.
Making its a part of overlapping with the resin sheet 21 wound by winding resin sheet 21, the size that need not increase inductor element 1 also is able to increase winding number.I.e., by increasing capacitance it is possible to increase the winding number of the conductive pattern 30 of inductor element 1, thereby, it is possible to improve inductance value.Even if additionally, the distance shortened between conductive pattern 30, central by making the substrate (LCP resin substrate) of low dielectric constant be clipped in, also short circuit be less likely to occur and line capacitance can be reduced.
Then, the manufacture method of inductor element is by adding hot stamping machine 100 shown in Fig. 2 D, implements to add the core 22 having wound resin sheet 21 operation of drop stamping.Add all directions in the hot stamping machine 100 six faces from core 22, pressurizeed in each face and heat.By the core 22 having wound resin sheet 21 being added drop stamping, form substantially inductor element 1 in rectangular shape as shown in figs. ia-1 c.That is, drop stamping resin sheet 21 and core 22 are added to form resin base material 20.Core 22 and resin sheet 21 are the thermoplastic resins of identical type, therefore, it is possible to add the simple process of drop stamping by use to carry out integration, the state of the inductor element 1 after formation the most easily maintains.Additionally, because winding resin sheet 21B (21C, 21D) makes it partly overlap with the resin sheet 21A (21B, 21C) having already wound around on core 22, so resin sheet also mutually thermal welding integration.Additionally, due to core 22 and resin sheet 21 are the thermoplastic resins of identical type, even if being therefore also not easy to be caused stripping by coefficient of thermal expansion differences after integration.
Additionally, conductive pattern 30 is as Fig. 3 illustrates, there are resin sheet 21 part overlapping with conductive pattern 30 and nonoverlapping part.Therefore, when adding drop stamping, part nonoverlapping with resin sheet 21 becomes parallel with the face of core 22 by pressurization, and the part overlapping with resin sheet 21 is caught in the middle pressurization, therefore the inside lateral bend of part at resin sheet 21 place.I.e., as illustrated in figure ib, the conductive pattern 30 of formation is configured to: along an end bending of long side direction, the end of bending enters the lower section of other adjacent conductive patterns 30.Additionally, due to the upside of the conductive pattern 30D shown in Fig. 3 does not has resin sheet 21 overlapping, if therefore to its punching press of pressurizeing, then presenting the state parallel with the face of core 22.
So, owing to the end of bending enters the lower section of other adjacent conductive patterns 30, winding number need not be changed and just can expand the width of conductive pattern 30, it is possible to reduce the conductor losses of conductive pattern 30.In other words, due to can more closely coiled conductor pattern 30, therefore, the space that need not increase on coil wireline reel A direction just can increase winding number, it is possible to increase inductance value.
Heat after stamping procedure carrying out, by impregnation technology etc., the part become beyond the part of mounting terminal carries out covering the operation of resist layer.Thus, the inductor element 1 of mount type is formed.
Additionally, in the present embodiment, the manufacture method for an inductor element 1 is illustrated, but can also form an inductor element of elongate, and is cut into small pieces to form multiple inductor elements.Fig. 4 is the figure that an inductor element is cut into pieces the method forming multiple inductor element for explanation.As shown in Figure 4, as above-mentioned manufacture method, on the resin base material 20A of elongate, coiled conductor pattern 30 forms inductor element 1A.Above-mentioned inductor element 1A is cut into pieces, generates multiple inductor element 1B.In this case, the position cut off by change, it is possible to generate multiple inductor elements that the winding number of coil-conductor is different.
(embodiment 2)
Inductor element involved by present embodiment coil axle be on this aspect of hollow different from embodiment 1.
Fig. 5 A-5D is the figure of the manufacture method for the inductor element 2 involved by embodiment 2 is described.
The manufacture method of inductor element 2 is as embodiment 1, first, as shown in fig. 5 a, from the beginning of the operation of the resin sheet 21 preparing elongate, is formed with the conductive pattern 30 of elongate on this resin sheet 21 surface.
Then, the manufacture method of inductor element 2 as illustrated in fig. 5b, is wound the operation of resin sheet 21 on substantially core 101 in rectangular shape.Core 101 is the hardware of such as rustless steel etc..On above-mentioned core 101, wind resin sheet 21 along the direction shown in the arrow of Fig. 5 B.For the winding of resin sheet 21, as embodiment 1, winding resin sheet 21 makes its a part of overlapping with the resin sheet 21 wound.
Then, the manufacture method of inductor element 2 implements to add the resin sheet 21 being wound on core 101 operation of drop stamping.Add the state after drop stamping as shown in Figure 5 C.By resin sheet 21 is added drop stamping, formation resin base material 23 around the core 101 of hardware.Further, it is configured to be wound with conductive pattern 30 on above-mentioned resin base material 23.
Then, the manufacture method of inductor element 2 is removed the operation of core 101.Thus, as shown in figure 5d, the inductor element 2 on coil axle with hollow 101A it is formed at.
Inductor element 2 formed as described above can also be installed when having hollow 101A, it is also possible to inserts ferrite iron core in hollow 101A.In the case of manufacturing the inductor element with ferrite iron core, if winding resin sheet after manufacture starts on ferrite iron core and adding drop stamping, owing to ferrite iron core is more crisp, the situation of iron core cracking can be produced.Therefore, as in the present embodiment, by inserting ferrite iron core after forming hollow 22A on inductor element 2, it is possible to be made without the inductor element 2 of damage.
(embodiment 3)
Fig. 6 A is the axonometric chart of the inductor element involved by embodiment 3, and Fig. 6 B is the sectional view of the line VI--VI of Fig. 6 A.
Inductor element 3 has a following structure: formation resin base material 24 around substantially ferrite iron core 102 in rectangular shape, and coiled conductor pattern 32 on this resin base material 24.Hereinafter, the part of coiled conductor pattern 32 is referred to as winder 40.Will be apparent from below, identical with embodiment 1,2, conductive pattern 32 is formed and is wound on resin sheet.Now, above-mentioned resin sheet is wound into two ends and highlights from winder 40.Hereinafter, its ledge is referred to as installation portion 41,42.Above-mentioned installation portion 41,42 highlights the most in the opposite direction from winder 40.
Winder 40 uses following structure: formation resin base material 24 around ferrite iron core 102, on this resin base material 24, using ferrite iron core 102 as wireline reel, wrapped around the conductive pattern 32 in addition to two ends.The conductive pattern 32 being wound on resin base material 24 and expose forms not shown resist.
Installation portion 41 highlights from the boundary member of ferrite iron core 102 and resin base material 24, and installation portion 42 highlights from the outermost perimembranous of winder 40.That is, installation portion 41,42 is formed on the diverse location of short transverse (orthogonal direction of coil wireline reel).On the downside surface of installation portion 41,42, forming the end of conductive pattern 32 respectively, this conductive pattern 32 is covered by resist.Now, it is not covered by resist by the part making conductive pattern 32, is formed and electrode 32A, 32B are installed.Above-mentioned installation electrode 32A, 32B become the input and output electrode of inductor element 3.
Hereinafter, the manufacture method of the inductor element 3 shown in Fig. 6 A is illustrated.
Fig. 7 is the figure representing the resin sheet by becoming resin base material 24 being formed with conductive pattern 32 on surface.
Resin sheet 25 is elongate, has two ends and bends to the shape of approximate right angle the most round about.Resin sheet 25 is formed by thermoplastic resin.Conductive pattern 32 is roughly the same with resin sheet 25 shape, and is formed on the surface of resin sheet 25.Conductive pattern 32 is by pasting such as Copper Foil on the most whole of resin sheet 25 interarea (in surface or the back side) in advance, and this copper foil pattern is formed.Hereinafter, two ends of the bending of resin sheet 25 are called end 25A, 25B, the straight line portion beyond end 25A, 25B is referred to as line part 25C.
Fig. 8 A, Fig. 8 B, Fig. 9 A, Fig. 9 B are the figures of the manufacture method for the inductor element 3 involved by embodiment 3 is described.
The manufacture method of inductor element 3 is the most as shown in Figure 7, from the beginning of the operation preparing the resin sheet 25 of formation conductive pattern 32 from the teeth outwards.
Then, the manufacture method of inductor element as shown in Figure 8 A, is wound the operation of resin sheet 25 on substantially core 103 in rectangular shape.Core 103 is the hardware of such as rustless steel etc..Above-mentioned core 103 winds the line part 25C in addition to end 25A, 25B of resin sheet 25.In detail, make end 25A highlight from core 103, core 103 winds line part 25C along the direction of the arrow in Fig..At the end of line part 25C winding, end 25B projects upwards in the side contrary with end 25A.State now is as shown in Figure 8 B.
Additionally, line part 25C is as shown in Figure 8 B, after length is designed on core 103 winding, end 25A, 25B are in the position relationship being parallel to each other, and conductive pattern 32 is positioned at same lower face side (installed surface side).
Then, the manufacture method of inductor element 3 as shown in Figure 8 B, implements to add the resin sheet 25 being wound on core 103 operation of drop stamping.By adding drop stamping resin sheet 25, as shown in Figure 9 A, on core 103, the resin sheet 25 of winding becomes resin base material 24.End 25A, 25B respectively become the installation portion 41,42 of Fig. 6 A explanation.
The manufacture method of inductor element 3 then carries out covering the operation of conductive pattern 32 with resist.Fig. 9 B is the figure that (installed surface side) observes that Fig. 9 A obtains from below.As shown in Figure 9 B, the part in addition to two ends of conductive pattern 32 is covered with resist.Now, two ends of the conductive pattern 32 that unused resist covers become installation electrode 32A, 32B.
Then, the manufacture method of inductor element is removed core 103 and inserts the operation of ferrite iron core 102.By removing core 103, form hollow at coil shaft portion, insert ferrite iron core 102 within the hollow.Thus, the inductor element 3 shown in Fig. 6 A is formed.As explained in Embodiment 2, if just winding resin sheet 25 after manufacture starts on ferrite iron core 102 and adding drop stamping, then the most crisp due to ferrite iron core 102, the situation of iron core cracking can be produced.Therefore, by inserting ferrite iron core 102 later, it is possible to be made without the inductor element 3 of damage.
Figure 10 A, Figure 10 B and Figure 10 C are the accompanying drawings of the mounting means for the inductor element 3 involved by embodiment 3 is described.
Be formed install electrode 32A installation portion 41 be formed at ratio be formed install electrode 32B the higher position of installation portion 42 on, therefore inductor element 3 is as shown in Figure 10 A, may be mounted on the substrate 201 of jump.
In the case of defining the inductor element 3 of extended length of installation portion 41, inductor element 3 as shown in Figure 10 B, can stride across other elements installed on a substrate 202 or components and parts (such as battery) 203 ground are arranged on substrate 202.
In addition, two substrates 202,204 are in the case of installed surface is spaced apart distance and is oppositely disposed, installation portion 41 can be arranged on substrate 204 as illustrated in figure 10 c like that by installation portion 42 is installed on a substrate 202, inductor element 3 is arranged on two substrates 202,204.
Additionally, after the length of the line part 25C of resin sheet 25 can also be designed on core 103 winding, as shown in Figure 8 B, end 25B is positioned in the upper surface side (side, face contrary with installed surface) of the resin sheet 25 of winding.Figure 11 is to change the figure of the situation of the resin sheet 25 of line part 25C length for explanation winding on core 103.In this case, the conductive pattern 32 formed on end 25A, 25B lays respectively at the position of opposition side.In detail, the conductive pattern 32 formed on the 25A of end is positioned at the lower face side of resin sheet 25, and the conductive pattern 32 formed on the 25B of end is positioned at the upper surface side of resin sheet 25.In this case, if except a part for conductive pattern 32 forms installation electrode 32A, 32B with the covering of external resist, then the inductor element with said structure can easily be installed as illustrated in figure 10 c on two substrates 202,204.
Additionally, in Figure 10 A～Figure 10 C, inductor element 3 is when being installed on each substrate, it is also possible to electrode will be installed via adapter and be connected with substrate.In addition, although the inductor element 3 involved by present embodiment is from the prominent structure of winder 40 as installation portion 41,42, but in can also being configured to only installation portion 41,42 highlights from winder 40, another does not highlights from winder 40, the lower surface of winder 40 i.e., as shown in Figure 6A becomes the structure of installation portion.Additionally, the manufacture method involved by present embodiment, although using core 103 as hardware, but can also be identical with embodiment 1, using core 103 as the thermoplastic resin with resin sheet 25 identical type.Although additionally, wind resin sheet 25 on core 103, but core 103 can not also be used to wind resin sheet 25.
Figure 12 A and Figure 12 B is the figure of the situation not using core winding resin sheet 25 for explanation.Figure 12 A represents the state of the winding midway of resin sheet 25, and Figure 12 B represents that the resin sheet 25 after terminating winding adds the state of drop stamping.As illustrated in fig. 12, the winding line part 25C when making end 25A prominent.In the case of not using core winding resin sheet 25, when starting to wind resin sheet 25, between end 25A and line part 25C, form gap 105, but by adding drop stamping, as shown in figure 12b, gap 105 is filled by resin, thus forms the resin base material 26 of very close to each other 105.
(embodiment 4)
In the present embodiment, form the method for transformator illustrate for concurrently forming two inductor elements.
Figure 13 A is the axonometric chart of the transformator involved by present embodiment, and Figure 13 B is the plane graph of the installed surface side of the transformator that the installed surface side from Figure 13 A is observed.
Transformator 4 possesses winder 80 and installation portion 81,82.Winder 80 is on the resin base material 90 formed around ferrite iron core 106, using ferrite iron core 106 as coil wireline reel coiled conductor pattern 91,92.Conductive pattern 91,92 is conductive pattern independently.Conductive pattern 91,92 is wound respectively in addition to an end, and one end thereof highlights from winder 80.Above-mentioned ledge becomes installation portion 81,82.
One end of conductive pattern 91 is positioned at winder 80 lower surface, and another end is positioned at installation portion 81.Additionally, conductive pattern 92 end is positioned at the lower surface of winder 80, another end is positioned at installation portion 82.Conductive pattern 91,92 part in addition to two ends respectively is covered by resist.Further, the part that unused resist covers is for installing electrode 91A, 91B, 92A, 92B.
On the transformator 4 so formed, a first siding ring becoming transformator 4 in conductive pattern 91,92, another becomes second siding ring.
Figure 14 is the figure representing the resin sheet by becoming resin base material 90 being formed with conductive pattern 91,92 from the teeth outwards.
Resin sheet 95 has T shape under overlooking.Resin sheet 95 is formed by thermoplastic resin.Conductive pattern 91,92 is formed as an end and bends to the shape of approximate right angle, symmetrical in line on the surface of resin sheet 95.Conductive pattern 91,92 is by pasting such as Copper Foil on resin sheet 95 interarea (in surface or the back side) in advance, and this copper foil pattern is formed.Hereinafter, the end of the bending of resin sheet 95 is called end 99A, 99B, straight line portion is referred to as line part 99C.
Figure 15 is the figure of the manufacture method for the inductor element involved by embodiment 4 is described.
The manufacture method of inductor element the most as shown in figure 14, from prepare be formed with conductive pattern 91,92 from the teeth outwards resin sheet 95 operation from the beginning of.
Then, the manufacture method of inductor element as shown in Figure 15, is wound the operation of resin sheet 95 on substantially core 107 in rectangular shape.Core 107 is the hardware of such as rustless steel etc..Make end 99A, 99B highlight from above-mentioned core 107, core 107 winds line part 99C along the direction of the arrow in Fig..
Then, the manufacture method of inductor element carries out adding the resin sheet 95 being wound on core 107 operation of drop stamping.By adding drop stamping resin sheet 95, as in fig. 13 a, on core 107, the resin sheet 95 of winding becomes resin base material 90, and end 99A, 99B respectively become the installation portion 81,82 of explanation in Figure 13 A.
The manufacture method of inductor element then carries out covering the operation of conductive pattern 91,92 with resist.By the operation of above-mentioned covering resist, as shown in Figure 13 B, form installation electrode 91A, 91B and electrode 92A, 92B are installed.
Then, the manufacture method of inductor element is removed core 107 and inserts the operation of ferrite iron core 106.By removing core 107, form hollow at coil shaft portion, insert ferrite iron core 106 within the hollow.Thus, the transformator 4 formed by two inductor elements shown in Figure 13 A is formed.
The inductor element of above-mentioned embodiment can also use as common mode choke coil or antenna.
Symbol description
1,1A, 1B, 2,3 ... inductor element
4 ... transformator
20,20A ... resin base material
21,21A, 21B, 21C, 21D: resin sheet
22 ... core
22A ... hollow
23,24 ... resin base material
25 ... resin sheet
25A, 25B ... end
25C ... line part
26 ... resin base material
30,30A, 30B, 30C, 30D, 32 ... conductive pattern
32A, 32B ... electrode is installed
40 ... winder
41,42 ... installation portion
80 ... winder
81,82 ... installation portion
90 ... resin base material
91 ... conductive pattern
91,92 ... conductive pattern
91A, 91B, 92A, 92B ... electrode is installed
92 ... conductive pattern
95 ... resin sheet
99A, 99B ... end
99C ... line part
100 ... add hot stamping machine
101 ... core
101A ... hollow
102 ... ferrite iron core
103 ... core
105 ... gap
106 ... ferrite iron core
107 ... core
201,202,204: substrate
203 ... components and parts
Claims (7)
1. a coil, this coil is wound with conductive pattern, it is characterised in that
The sheet material formed by thermoplastic resin is wound on the core formed by the thermoplastic resin with described sheet material identical type, and is formed with the described conductive pattern of elongate on described sheet material,
The described sheet material and the described core that are wound carry out thermal welding.
2. coil as claimed in claim 1, it is characterised in that
Described sheet material is wound in the way of the direction inclination orthogonal relative to the wireline reel direction of coil of the long side direction that makes described conductive pattern.
3. coil as claimed in claim 2, it is characterised in that
Described sheet material is wound in the way of making on the wireline reel direction of described coil every time winding all some overlaps.
4. the coil as described in any one in claims 1 to 3, it is characterised in that
Described sheet material is elongate,
The described conductive pattern of elongate is formed on described sheet material in the way of its long side direction is consistent with the long side direction of the described sheet material of elongate,
The described sheet material of elongate and an end of described conductive pattern or two ends bend,
The part in addition to the one end bent or two ends of described sheet material and described conductive pattern is wound and thermal welding.
5. a coil, it is characterised in that
By the conductive pattern being formed with elongate and formed by thermoplastic resin sheet material winding form,
The described sheet material wound carries out thermal welding,
Described sheet material is in elongate shape,
The described conductive pattern of elongate is formed on described sheet material in the way of its long side direction is consistent with the long side direction of the described sheet material of elongate,
The described sheet material of elongate and an end of described conductive pattern or two ends bend,
The part in addition to the one end bent or two ends of described sheet material and described conductive pattern is wound.
6. a coil mounting substrate, is provided with coil, it is characterised in that
Described coil by the conductive pattern being formed with elongate and formed by thermoplastic resin sheet material winding form,
The described sheet material wound carries out thermal welding,
Described sheet material is in elongate shape,
The described conductive pattern of elongate is formed on described sheet material in the way of its long side direction is consistent with the long side direction of the described sheet material of elongate,
The described sheet material of elongate and an end of described conductive pattern or two ends bend,
The part in addition to the one end bent or two ends of described sheet material and described conductive pattern is wound,
One end or two ends of described coil are arranged on described coil mounting substrate.
7. coil mounting substrate as claimed in claim 6, it is characterised in that
One end of described coil is arranged on described coil mounting substrate, and another end of described coil is arranged on other substrate,
Various location in the height direction is installed in one end of described coil and another end.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-224364 | 2013-10-29 | ||
| JP2013224364 | 2013-10-29 | ||
| PCT/JP2014/077377 WO2015064356A1 (en) | 2013-10-29 | 2014-10-15 | Coil manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205487740U true CN205487740U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201490000955.0U Active CN205487740U (en) | 2013-10-29 | 2014-10-15 | Coil and coil mounting substrate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205487740U (en) |
| WO (1) | WO2015064356A1 (en) |
Families Citing this family (2)
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|---|---|---|---|---|
| US11874423B2 (en) | 2019-10-25 | 2024-01-16 | Witricity Corporation | Circuit for object detection and vehicle position determination |
| US11750041B2 (en) * | 2021-01-26 | 2023-09-05 | Witricity Corporation | Wire-wound structures for electromagnetic sensing of objects |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56119611U (en) * | 1980-02-12 | 1981-09-11 | ||
| JP2010123883A (en) * | 2008-11-21 | 2010-06-03 | Denso Corp | Method of manufacturing electronic component, and electronic component |
| WO2013084609A1 (en) * | 2011-12-07 | 2013-06-13 | Ｎｅｃトーキン株式会社 | Coil, reactor, and coil formation method |
-
2014
- 2014-10-15 CN CN201490000955.0U patent/CN205487740U/en active Active
- 2014-10-15 WO PCT/JP2014/077377 patent/WO2015064356A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2015064356A1 (en) | 2015-05-07 |
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