CN103730229B - Coil component - Google Patents
Coil component Download PDFInfo
- Publication number
- CN103730229B CN103730229B CN201310389547.0A CN201310389547A CN103730229B CN 103730229 B CN103730229 B CN 103730229B CN 201310389547 A CN201310389547 A CN 201310389547A CN 103730229 B CN103730229 B CN 103730229B
- Authority
- CN
- China
- Prior art keywords
- terminal
- metal piece
- terminal metal
- face
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a kind of deviation of height of the terminal surface that can eliminate the terminal metal piece causing due to the thickness deviation of binding agent, and the bad and bad high coil component of reliability of wiring is not installed. Coil component (1) possesses: the coil (7) that the coiling of reeling forms; The drum type core (2) of support coils (7); Be connected with the terminal metal piece (6a～6f) of the terminal part of coil (7); And each terminal metal piece is bonded in to the binding agent (11B) of the flange part (4A, 4B) of drum type core (2). Drum type core (2) has the bottom surface (S of the flange part that becomes installed surfaceB), each terminal metal piece has the bottom surface sections (T on the bottom surface of the flange part that is positioned at drum type core (2)B). Bottom surface (the S of each flange partB) upper setting by epimere face (SB2) and hypomere face (SB1) form jump. Bottom surface sections (the T of terminal metal pieceB) and epimere face (SB2) directly contact, the bottom surface sections (T of terminal metal pieceB) and hypomere face (SB1) between gap (d1) in be filled with the 1st binding agent (11B). A part for binding agent (11B) be filled in be formed at jump under hypomere face (SB1) groove (SB3) in.
Description
Technical field
The present invention relates to a kind of coil component, especially, relate to the terminal electrode structure of surface mounting type coil unit.
Background technology
Along with the miniaturization of electronic equipment in recent years, coil component is also required to carry out high-density installation. For example,, in patentIn document 1, the coil component that can carry out the surface installing type of high-density installation is disclosed.
This coil component possesses: the core (core) with volume core and flange part; Be formed with the insulation of the spatial accommodation of coreThe shell (case) of property; Be exposed to the terminal metal piece that is mechanically fastened at shell under outside state at least a portion; With endSub-metalwork wiring and the coil (coiling) of reeling around volume core via shell. The spatial accommodation of core, comprises and peaceThe bottom surface of dress face almost parallel and by zoning, has respectively the lower surface of the volume core relative with the bottom surface of volume core and flange partWith the lower surface of flange part, the lower surface of volume core with respect to the lower surface of flange part at grade. Protruding with shellOn relative position, edge, regulation has the foot outstanding towards installed surface, disposes the installation portion of terminal metal piece in foot.Because terminal metal piece has the foliated fixed part that is embedded in shell, even therefore terminal metal when mounted or when wiringPart is subject to hot impact also can be suppressed terminal metal piece and come off from insulating properties housing.
In above-mentioned coil component, for the installation of terminal metal piece, adopt the fixed part of terminal metal piece is embedded toThe method of shell, but the general binding agent that uses more. But, use in the situation of binding agent, due to terminal metal piece and its installationThere is deviation in the position of the binding agent between face or amount, thereby can produce the height product of the terminal surface between multiple terminal metal pieceThe problem of raw deviation. The deviation of the height of this terminal surface, becomes by the terminal part hot pressing of coil is connected on terminal surface and is carried outThe deviation of pressure when wiring, becomes the reason that causes that wiring is bad. In addition, bad the asking of installation that also can generating coil partsTopic.
In addition, in above-mentioned coil component, coiling is connected by the leading section hot pressing of coiling is connected to terminal metal pieceIn terminal metal piece, realize. When coiling hot pressing is connected to terminal metal piece, the table of the wire rod of coiling (Cu) and terminal metal pieceThe plated film (Ni and Sn) of face reacts and forms alloy-layer. Herein, because the fusing point of alloy-layer is high, on circuit substrate, installWhen coil component, this part becomes in the situation on composition surface of scolder, becomes the main cause that the wellability of scolder is declined. SpecialNot, as shown in Figure 16 (a), if by by the position alignment terminal metal piece 21 of the leading section 20e of the coiling 20 of thermo-compressedThe end of terminal surface, the end of terminal surface from the bearing of trend of coiling is to end, i.e. shape in the wide region of terminal surfaceBecome alloy-layer, hinder the formation of fillet of solder and cause the worry that installation is bad thereby have alloy-layer.
In order to address this problem, as shown in Figure 16 (b), coiling 20 leading section 20e is not set in to terminal metal pieceThe end of terminal surface, but can be set near its inner side (central authorities). In this situation, be necessary to proceed as follows: fromThe coiling 20 that the volume core of core is drawn, the terminal surface by terminal metal piece 21 and lead to its front after, should serve as coilingThe winding portion (solid line part) at rear of position of leading section be connected to terminal surface by hot pressing, the winding portion (reference in frontDotted line) be cut off and remove. But, if the winding portion in front contacts with the terminal surface of terminal metal piece 21, by hot pressingHeat while connecing and while making the surperficial plated film melting of terminal metal piece, the surface of terminal metal piece is fixed in coiling, existence can notThe problem of cutting off well and remove.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2009-117627 communique
Summary of the invention
In order to address the above problem, coil component of the present invention is characterised in that to possess: the coil that the coiling of reeling forms;Support the matrix of described coil; Be connected with at least one terminal metal piece of the terminal part of described coil; And by described terminalMetalwork is bonded in the 1st binding agent of described matrix, and described matrix has becomes the 1st of installed surface, described terminal metal pieceThere is the 1st portion of terminal being positioned on described the 1st of described matrix, on described the 1st, be provided with by epimere face and hypomere faceThe jump forming, described the 1st portion of terminal of described terminal metal piece is directly contacted with described epimere face, described terminal metal pieceIn gap between described the 1st portion of terminal and described hypomere face, be filled with described the 1st binding agent.
According to the present invention, can suppress the caused terminal of thickness by the binding agent between terminal metal piece and flange partThe deviation of the height of face, and can improve the flatness between multiple terminal metal piece. Therefore, can eliminate by printed base plateThe deviation institute of bad, the pressure while carrying out wiring by the terminal part of thermo-compressed coil of the installation that causes of the deviation of installment stateThe unfavorable condition of the bad grade of wiring causing. Further, according to the present invention, can make terminal metal piece have by described gapElasticity, in the time cutting off the terminal part of coil, the buffering can be cut off by the elasticity of terminal metal piece time, thus can be reliableGround cuts off the terminal part of coil.
Coil component of the present invention, preferably further possess be formed at described jump under described hypomere faceGroove, a part for described the 1st binding agent is filled in described groove. According to this structure, can prevent reliably the coating of binding agentThe deviation of the height of the caused terminal metal piece of deviation of amount.
In the present invention, the described terminal region of preferred described coil is in the top of described epimere face, and is wired to while overlookingThe 1st terminal surface with the overlapping described terminal metal piece of this epimere face. According to this structure, can be by terminal part thermo-compressed reliablyIn the terminal surface of terminal metal piece, and can carry out reliably the cut-out of the coiling after thermo-compressed. Have again, can be using asThe buffering of the described gap of accumulating space of 1 binding agent during as the cut-out of the terminal part of coil and being used, can be effectiveApply flexibly the space of accumulating of binding agent.
Preferred described matrix has and described the 1st orthogonal the 2nd, and described terminal metal piece is L font, further toolHave the 2nd portion of terminal being positioned on described the 2nd, described the 2nd portion of terminal is bondd and is fixed on described the 2nd by the 2nd binding agent. RootAccording to this structure, can be by the 1st binding agent and the 2nd binding agent fixed terminal metalwork reliably, and can carry out reliably by aroundThe wiring that the thermo-compressed of the terminal part of line is carried out and cut-out thereafter.
Coil component of the present invention, preferably possesses multiple described terminal metal piece. The quantity of terminal metal piece is more, its heightDegree deviation more becomes large problem, according to this structure, can suppress the height tolerance between multiple terminal metal piece, and can preventInstall bad bad with wiring.
In the present invention, preferred described matrix is to have be wound with the volume core of described coil and be disposed at two of this volume coreThe drum type core of pair of flanges portion of end, described the 1st of described matrix is the bottom surface of described flange part, described the of described matrix2 is the outer lateral side of described flange part. According to this structure, in the coil component of surface installing type that has used drum type core,The wellability that wiring has the scolder of the terminal surface of coiling can be improved, and the reliability of electrical connection and mechanical connection can be improved.
In the present invention, described the 1st portion of terminal of preferred described terminal metal piece has the described jump phase with described matrixThe jump shape of coupling. In this situation, described the 1st portion of terminal of preferred described terminal metal piece be positioned at described coil described inOn the extended line of terminal part, have from described matrix and see the 2nd terminal surface in the position lower than described the 1st terminal surface. According toThis structure, because the terminal part that makes coiling when the thermo-compressed is not crimped on the surface of terminal metal piece, so can avoid coilingThe crimping of terminal part, and can be reliably and the cut-out of easily carrying out the coiling after thermo-compressed remove. In addition, can make endSub-metalwork is along the jump face of matrix, and can suitably set the height in the gap between terminal metal piece and described hypomere faceDegree. In addition, owing to the area of the terminal surface of soldered installation can being guaranteed for wider, thereby can be not when crimping by coilTerminal part is correctly located, thus the terminal part of easily crimping coiling.
Coil component of the present invention, preferably further possesses the recess that is formed at described hypomere face, and described recess is set upIn described hypomere face with the nonoverlapping region of described terminal metal piece. According to this structure, by with lead frame integratedWhen terminal metal piece bonding is fixing, can suppresses binding agent and flow to undesirable region along lead frame, and can prevent from drawingThe situation that wire frame is bonded.
In the present invention, preferred described terminal metal piece is included at least the 1～3rd end being arranged in order in the direction of regulationSub-metalwork, between the insulation between described the 1st terminal metal piece and described the 2nd terminal metal piece in the direction of described regulationEvery, it is wider than the insulation gap between described the 2nd terminal metal piece and described the 3rd terminal metal piece in the direction of described regulation,Described recess is arranged at the district that is held in described the 2nd terminal metal piece and described the 3rd terminal metal piece in described hypomere faceTerritory. Terminal metal piece is arranged in the situation of flange part of drum type core, the width that the direction of regulation is flange part. According to thisStructure, binding agent flows out to the wide region between the 2nd terminal metal piece and the 3rd terminal metal piece, can prevent lead frame quiltThe situation of bonding.
According to the present invention, can eliminate the thickness deviation due to the binding agent existing between terminal metal piece and its installed surfaceAnd the deviation of the height of the terminal surface causing. Therefore, can provide the bad and bad high line of reliability of wiring is not installedCoil component. In addition, according to the present invention, can cut off reliably and easily remove the not part of the coil after thermo-compressed. CauseThis, can realize the coil component with the good terminal surface of the wellability of scolder.
Brief description of the drawings
Fig. 1 is the general perspective view that represents the surface structure of the coil component of the 1st embodiment of the present invention.
Fig. 2 is the exploded perspective view of the coil component of Fig. 1.
Fig. 3 is the general perspective view that represents to make the state that the coil component of Fig. 1 spins upside down.
Fig. 4 is the equivalent circuit diagram of coil component 1.
Fig. 5 is the general perspective view that represents the structure of drum type core 2, and represents the shape that terminal metal piece 6a～6f has been mountedState.
Fig. 6 represents the rollover states upward of bottom surface of the drum type core 2 of the state that there is no terminal metal piece 6a～6f.
Fig. 7 represents the structure of the flange part that terminal metal piece is installed, (a) for see the general plane of flange part from bottom surface sideFigure, (b) for seeing the general plane figure of flange part from outer lateral side side.
Fig. 8 (a) and (b) be that the general lateral that represents the shape of the terminal metal piece that is installed on respectively flange part 4A, 4B is cutFace figure.
Fig. 9 (a)～(c) is the pattern of the thermo-compressed operation for the coiling that uses fever tablet (heaterchip) is describedFigure.
Figure 10 is the general perspective view that represents the structure of the coil component 30 of the 2nd embodiment of the present invention.
Figure 11 is the general perspective view that represents the shape of the drum type core of coil component 30.
Figure 12 is the equivalent circuit diagram of coil component 30.
Figure 13 is the figure that represents the structure of the coil component 40 of the 3rd embodiment of the present invention, particularly represents drum type core 2The figure of shape.
Figure 14 is the general perspective view that represents the state from lead frame cuts off by the terminal metal piece that is installed on drum type core.
Figure 15 represents to bond the general lateral figure of state of terminal metal piece 6a～6c, (a) represents not have showing of recessSome structures, (b) expression has the structure of the present embodiment of recess.
Figure 16 (a) and (b) be the ideograph for existing coil component is described.
Detailed description of the invention
Below, be preferred embodiment described in detail of the present invention with reference to accompanying drawing.
Fig. 1 is the roughly solid that represents the surface structure of the surface mounting type coil unit of the 1st embodiment of the present inventionFigure. In addition, Fig. 2 is the exploded perspective view of the coil component of Fig. 1, and Fig. 3 represents state that the coil component of Fig. 1 is spun upside downGeneral perspective view.
As shown in FIG. 1 to 3, this coil component 1 possesses: drum type core 2,5,6 terminal metal piece 6a～6f of slab core, volumeBe around in the coil being formed by coiling 7 of drum type core 2. Although there is no particular limitation, the arteries and veins that coil component 1 is surface installing typeRush transformer, it is of a size of about 4.5mm × 3.2mm × 2.6～2.8mm, or is about 3.2mm × 3.2mm × 2.8～2.9mm.
Drum type core 2 is for example made up of the magnetic material of Ni-Zn class ferrite etc., has volume core 3 Hes that are wound with coil 7Be disposed at the 4A of pair of flanges portion, the 4B at the two ends of volume core 3. Slab core 5 is also by the magnetic material structure of Ni-Zn class ferrite etc.Become, and load in the upper surface of the 4A of pair of flanges portion, 4B, fixed by binding agent etc.
The upper surface of slab core 5 is smooth even surface, so in the time that the absorption of coil component 1 is installed, can be by thisInstall as adsorption plane on surface. Moreover, also preferred with the surface of the slab core 5 of the upper surface bonding of flange part 4A, 4BFor even surface. Contact with flange part 4A, 4B by the level and smooth surface that makes slab core 5, thereby can make both tight reliablyClose adhering to, and can form the closed magnetic circuit that there is no magnetic leakage.
Terminal metal piece 6a～6f is the metal that extends the L font arranging from the bottom surface of flange part 4A, 4B to outer lateral sideSheet. Herein, the outer lateral side of so-called flange part, for being positioned at the face of opposition side of installed surface of volume core 3. These terminal metal piece6a～6f is preferably the part that the lead frame that obtains from processing a metallic plate cuts out. Terminal metal piece 6a～6f draws being stillUnder the state of wire frame, bonding is fixed on drum type core 2, by cutting off from frame portion, thereby becomes independently terminal. At use side interestBelong in the situation of part 6a～6f, its formation is more prone to compared with plating electrode, also favourable aspect the cost in the time of volume production. AgainPerson, the positional precision when installation that can improve terminal metal piece 6a～6f.
In terminal metal piece 6a～6f, 3 terminal metal piece 6a, 6b, 6c are arranged at flange part 4A mono-side, other 3 endsSub-metalwork 6d, 6e, 6f are arranged at flange part 4B mono-side. Moreover, in 3 terminal metal piece 6a, 6b, 6c, 2 terminal metal piece6a, 6b are arranged at the close right side of flange part 4A, and terminal metal piece 6c is arranged at the close left side of flange part 4A, establishes between the twoBe equipped with certain insulation gap. Therewith in the same manner, in 3 terminal metal piece 6d, 6e, 6f, 2 terminal metal piece 6d, 6e arrangeIn the close right side of flange part 4B, terminal metal piece 6f is arranged at the close left side of flange part 4B, is provided with certain between the twoInsulation gap.
As shown in Figure 2, the terminal metal piece 6a～6f of L font has respectively and the bottom surface (the 1st surface) of flange part 4A, 4BThe bottom surface sections T of contactB(the 1st portion of terminal), the side surface part T contacting with the outer lateral side (the 2nd surface) of flange part 4A, 4BS(the 2nd endSub-portion). So as shown in Figure 3, the terminal part of coil 7 is connected to the bottom surface sections T of terminal metal piece 6a～6f by hot pressingBSurface.
Coil 7 is made up of 4 coiling S1～S4. Coiling S1～S4, for covering wire, carries out with 2 layers of structure at volume core 3Reel. At length, coiling S1, S4 by bifilar coiling (by two wind the line side by side single laminate roll around) and form the 1st layer, coiling S2,S3 forms the 2nd layer by bifilar coiling. The number of turn of coiling S1～S4 is identical mutually.
In addition, the coiling direction of coiling S1～S4 is in layers 1 and 2 difference. , for example see from flange from flange part 4AThe 4A of portion is in the situation of the coiling direction of flange part 4B, and the coiling direction of coiling S1, S4 is clockwise, with respect to this, aroundThe coiling direction of line S2, S3 is counterclockwise, contrary mutually. Like this arrange be due to, while starting to reel and reel finish timeThat each coiling is distolateral not out of question to another from one end side stretching of volume core 3 yet.
The wiring of coiling S1～S4 and terminal metal piece 6a～6f is described. One end S1a, the other end S1b of coiling S1 are respectivelyBe wired to terminal metal piece 6a, 6f, one end S2a, the other end S2b of coiling S2 are wired to respectively terminal metal piece 6f, 6b. SeparatelyOutward, one end S3a, the other end S3b of coiling S3 are wired to respectively terminal metal piece 6e, 6c, one end S4a, the other end of coiling S4S4b is wired to respectively terminal metal piece 6c, 6d.
In addition, terminal metal piece 6c, as shown in Figure 3, is set to leave a little terminal metal piece 6a, 6b. About terminalMetalwork 6f is also identical, is set to leave a little terminal metal piece 6d, 6e. This is in order to ensure being made up of coiling S1, S2Primary coil and by the proof voltage between the secondary coil that forms of coiling S3, S4.
Fig. 4 is the equivalent circuit diagram of coil component 1.
As shown in Figure 4, terminal metal piece 6a and 6b are a pair of balance input terminals, i.e. side of the positive electrode terminal electrode IN+ and negativeUtmost point side terminal electrode IN-. In addition, terminal metal piece 6e and 6d are a pair of balance output end, i.e. side of the positive electrode terminal electrode OUT+With negative side terminal electrode OUT-. Terminal metal piece 6c, 6f become respectively the centre cap CT of outlet side, input side. Coiling S1,S2 forms the primary coil of pulse transformer, and coiling S3, S4 form the secondary coil of pulse transformer.
Fig. 5 is the general perspective view that represents the structure of drum type core 2, and represents the shape that terminal metal piece 6a～6f has been mountedState. In addition, Fig. 6 represents the rollover states upward of bottom surface of the drum type core 2 of the state that there is no terminal metal piece 6a～6f. AgainPerson, Fig. 7 (a) is for see the general plane figure of flange part 4A from bottom surface side, and Fig. 7 (b) is for seeing that from outer lateral side side flange part 4A's is largeCause plane.
As shown in Figures 5 and 6, drum type core 2 by volume core 3, be disposed at the 4A of pair of flanges portion, the 4B at two ends of volume core 3Form. Drum type core 2 is rotational symmetric shape in the time overlooking, and flange part 4A, 4B are of similar shape. Therefore, only aobvious in Fig. 7Show flange part 4A, omitted the diagram of flange part 4B.
As shown in Figure 5, the upper surface S of flange part 4A, 4BTFor level and smooth tabular surface, can improve thus with slab core 5Close attachment. As described above, the upper surface S of flange part 4A, 4BTBetween set up slab core 5, form thus the closed magnetic of essenceRoad.
As shown in Fig. 5, Fig. 6 and Fig. 7 (b), the outer lateral side S of flange part 4A, 4BSBecome terminal metal piece 6a～6f'sThe high jump face in region low, in addition, setting area. Terminal metal piece 6a～6f is arranged at outer lateral side SSHypomere faceSS1, outer lateral side SSEpimere face SS2Height roughly to become the mode of the same face with the upper surface of terminal metal piece 6a～6fForm. In Fig. 7 (b), shadowed region is epimere face SS2, shadeless region is hypomere face SS1。
As shown in Fig. 6 and Fig. 7 (a), the bottom surface S of flange part 4A, 4BBBecome the base end part side of terminal metal piece 6a～6fThe low jump face in region high, in addition, setting area. , on the setting area of terminal metal piece 6a～6f, be provided with epimereFace SB2With hypomere face SB1. The major part of the non-setting area of terminal metal piece 6a～6f is hypomere face SB1. So, terminal metalThe bottom surface sections T of part 6a～6fBBase end part side be arranged at the bottom surface S of flange part 4A, 4BBEpimere face SB2, terminal metal piece 6aThe bottom surface sections T of～6fBCorner portion side be arranged at the bottom surface S of flange part 4A, 4BBHypomere face SB1. In Fig. 7 (a), enclose shadeRegion be epimere face SB2, shadeless region is hypomere face SB1。
In present embodiment, the hypomere face S under jumpB1Be provided with groove SB3. Herein, so-called " jump just underSide ", refer to and connect epimere face SB2With hypomere face SB1Side wall surface like this downwards extend, as groove SB3Internal face and companyForm continuously, and refer to that way does not exist hypomere face S thereinB1. Groove SB3Extend abreast with jump, its length equals jumpLength. Groove SB3Width there is no particular limitation, can be about 0.1～0.2mm. Groove SB3Cross sectional shape can be squareShape or U-shaped can be also V word shape. Details is narrated below, by forming such groove SB3Thereby, can fitSpend the space between ground extended terminal metalwork and the bottom surface of flange part, and can absorb bottom surface and the terminal metal piece of flange partBetween the deviation of coated weight of binding agent.
Fig. 8 (a) and (b) be represent the terminal metal piece 6a～6f that is installed on respectively flange part 4A, 4B shape roughlySide cross-sectional views. (a) for to comprise all general lateral figure of drum type core, (b) be the part of the terminal metal piece of flange part 4A sideEnlarged drawing. In addition, the structure of flange part 4B side is identical with flange part 4A side.
As Fig. 8 (a) with (b), the bottom surface sections T of the terminal metal piece 6a～6f of L fontBAnd side surface part TS, respectively with protrudingThe bottom surface S of edge 4A, 4BB(the 1st surface) and outer lateral side SS(the 2nd surface) contacts. Herein, side surface part TSBy binding agent11A and bond and be fixed on the outer lateral side S of flange partS, bottom surface sections TBBond and be fixed on the bottom surface of flange part by binding agent 11BSB. Also the fixation side that can only bond face TS, according to this structure, can eliminate the caused end of deviation of the coated weight of binding agentThe bottom surface sections T of sub-metalwork 6a～6fBHeight tolerance. But, in present embodiment, owing to being provided with groove SB3, thereby canThe deviation of the coated weight of absorbent binder agent to a certain extent. Therefore, can prevent the caused terminal metal piece 6a of binding agentThe bottom surface sections T of～6fBHeight tolerance, can further improve its installation strength.
The bottom surface sections T of press terminal metalwork 6a～6fBPower, play the work as shearing force with respect to binding agent 11With, easily peel off so bonding is fixing. With respect to this, the bottom surface sections T of press terminal metalworkBPower towards with binding agentThe adhesive surface of 11B towards roughly orthogonal, therefore can not be subject to such power and binding agent 11B is peeled off. Therefore, can preventDue to undertaken by thermo-compressed wiring time or the cut-out time institute applied pressure of coiling terminal metal piece is come off from flange partSituation, and can improve the adhesion strength of terminal metal piece.
Be bonded to the bottom surface sections T of the terminal metal piece 6a～6f of the terminal part of coil 7BThere is jump shape. Moreover, flangeThe bottom surface S of the 4A of portion, 4BBJump face become the shape matching with the jump shape of this terminal metal piece 6a～6f.
The bottom surface sections T of terminal metal piece 6a～6fBBy close inner side surface (the close volume core that is arranged at flange part 4A, 4BPortion 3) the T of epimere portionB1, be arranged at the close outer lateral side S of flange part 4A, 4BSThe T of hypomere portionB2Form. Herein, the T of epimere portionB1For the terminal surface contacting with the terminal part of coil 7 (epimere face S is providedU) position (contact site), the T of hypomere portionB2For provide withThe discontiguous terminal surface of terminal part (the hypomere face S of coil 7L) position (noncontact portion). , the T of hypomere portionB2With epimere face SUIn identical plane, do not there is terminal surface.
The bottom surface sections T of terminal metal piece 6a～6fBEpimere face SUProvide while bearing thermo-compressed to the terminal part of coil 7" electrolysis " of crimp force. In addition, the bottom surface sections T of terminal metal piece 6a～6fBHypomere face SLThe terminal making to coil 7 is provided" the non-electrolysis " that the crimp force of portion discharges. By making the bottom surface sections T of terminal metal piece 6a～6fBHave by epimere face SUWith underSection face SLThe jump face forming, thus can avoid the terminal part of coil 7 to spread all over this in the bottom surface sections of terminal metal piece 6a～6fThe whole width ground of the bearing of trend of coil is by thermo-compressed. Therefore, can produce with reacting of plated film not being formed with by coilingGuarantee for wider in the region of raw alloy-layer, and the cut-out that can reliably and easily wind the line is removed.
Preferably at the bottom surface sections T of terminal metal piece 6a～6fBThe T of hypomere portionB2The back side and the hypomere face of flange part 4A, 4BSB1Between the surface of side, be provided with gap d1. Be provided with such gap d1Situation under, after thermo-compressed, cut off coil 7When terminal part, can give the buffering being produced by the elastic force of terminal metal piece 6a～6f with respect to cutter (cutter). CauseThis, can cut off the terminal part of coil 7 reliably.
Be filled in gap d1The buffering hardening of terminal metal piece of binding agent 11B when coiling is cut off, but buffering can notDisappear. Compared with there is no the situation of binding agent 11B, still can give suitable buffering. Moreover, due to such gap d1Deposit, the deviation of the coated weight of the binding agent using can be absorbed in bonding terminal metal piece time, can improve multiple ends thusThe flatness of the terminal surface between sub-metalwork.
In Fig. 8 (b), by side surface part TSWith bottom surface sections TBThe T of hypomere portionB2(gap d1Part) 2 places bondings fixing,But the T of epimere portionB1Non-caked. Therefore, adhesion strength can be improved, and the epimere face of the bottom surface of flange part can be guaranteed reliablySB2With the T of epimere portionB1Contact. The end that therefore, can prevent terminal metal piece 6a～6f at the wiring position of the terminal part of coilFace TBHeight tolerance.
Fig. 9 (a)～(c) is the ideograph of the thermo-compressed operation of the terminal part for coil 7 is described.
As shown in Fig. 9 (a), in thermo-compressed operation, by the terminal part of coil 7 of volume core 3 that is wound in drum type core 2 rightThe upper distribution of terminal metal piece 6a～6f of answering. The terminal part of coil 7, by terminal metal piece, 6a～6f leads to flange partThe outside of 4A, 4B, extends substantially in parallel with the bottom surface of flange part 4A, 4B.
Secondly, as shown in Figure 9 (b), use fever tablet 12, by the terminal part hot pressing of coil 7 be connected to terminal metal piece 6a～The surface of 6f. Be positioned at the bottom surface sections T of terminal metal piece 6a～6fBEpimere face SUThe winding portion of top be clamped into heatingSheet 12 and epimere face SUBetween, and pressed and be attached to terminal surface, the wire rod (Cu) of coiling by the crimp force of the fever tablet 12 of high temperatureObtain sufficient engaging force with plated film (Ni and the Sn) alloying of terminal surface.
On the other hand, be positioned at the bottom surface sections T of terminal metal piece 6a～6fBHypomere face SLThe winding portion of top escape intoTo fever tablet 12 and hypomere face SLBetween gap d2, be not endowed epimere face SUSuch sufficient crimp force. Therefore, canAvoid the thermo-compressed of this winding portion to terminal surface.
As shown in Figure 9 (c), the terminal part of the coil 7 of thermo-compressed on terminal metal piece 6a～6f, is cut off as mentioned aboveDevice 13 cuts off and makes its length neat. Now, the off-position of coil 7 is near the jump of terminal metal piece 6a～6f. Coil 7The cut-out of terminal part time, do not have the remaining line part 7r of the coiling of thermo-compressed not to be bonded to terminal surface, even or hypothesisDue to melting when the thermo-compressed plated film be bonded to terminal surface, its pull-out capacity also a little less than, therefore, only by applying some powerJust can peel off. Its result, coiling is only connected to the bottom surface sections T of terminal metal piece by hot pressingBSurface in epimere face SUThereby,Become at hypomere face SLThere is no the state of coiling.
At epimere face SU, the surrounding of coiling is because alloying becomes the poor region of wellability of scolder, but around itAlso have the region that there is no alloying, this region contributes to scolder to connect. On the other hand, at hypomere face SLThere is not coiling, becomeFor the good region of the wellability of scolder. Hypomere face SLFor with the side surface part T of terminal metal pieceSThe part of contact, and be surfaceWhen installation and side surface part TSTogether to the helpful part of the formation of fillet of solder. Therefore, such coil portion is installed on surfaceIn the situation of part 1, can improve the wellability of the scolder of terminal metal piece 6a～6f, and can be reliably from terminal metal pieceThe T of hypomere portionB2To side surface part TSForm fillet of solder. That therefore, can improve the electrical connection of coil component 1 and mechanical connection canLean on property.
As described above, the coil component 1 of present embodiment, at the drum type that terminal metal piece 6a～6f is installedThe bottom surface S of flange part 4A, the 4B of core 2BOn be provided with jump face, terminal metal piece and epimere face SB2Directly contact, in addition, at endSub-metalwork and hypomere face SB1Between be provided with gap d1, due to this gap d1In be filled with binding agent 11B, so can suppressThe height tolerance of the terminal surface between multiple terminal metal piece 6a～6f, and can guarantee the terminal of each terminal metal piece 6a～6fThe flatness of face.
In addition, in present embodiment, further possesses the hypomere face S under jumpB1The groove S formingB3, due toA part of binding agent 11B is filled in described groove SB3In, thereby can suppress reliably between multiple terminal metal piece 6a～6fThe height tolerance of terminal surface.
In addition, the coil component 1 of present embodiment, due to be bonded to coil 7 terminal part terminal metal piece 6a～The terminal surface of 6f, is provided with the jump face contacting of avoiding with the leading section of coil 7, thereby can avoids leading section in coilingBe connected to terminal surface by hot pressing. Therefore cut-out that, can be reliably and easily carry out the coiling after thermo-compressed is removed.
Moreover, in present embodiment, with the noncontact portion of terminal part of coiling be the electrode surface lower than contact site, thereby energyEnough electrode surfaces of widely guaranteeing terminal metal piece. Therefore, the location of the terminal part of coil does not need high precision, can be easyThe terminal part of ground thermo-compressed coiling.
Figure 10 is the general perspective view that represents the structure of the coil component 30 of the 2nd embodiment of the present invention, and representsThe state spinning upside down. In addition, Figure 11 is the general perspective view that represents the shape of the drum type core of coil component 30.
As shown in Figure 10 and Figure 11, the coil component 30 of present embodiment is characterised in that, terminal metal piece 6c is dividedBecome 2 centre caps terminal metal piece 6c1,6c2, in addition, terminal metal piece 6f is divided into 2 centre cap terminal metalsPart 6f1,6f2 install 4 terminal metal piece on each of the 4A of pair of flanges portion, 4B. At flange part 4A, be provided with terminal goldBelong to part 6a, 6b, 6c1,6c2, at flange part 4B, be provided with terminal metal piece 6d, 6e, 6f1,6f2.
In present embodiment, the other end S3b of coiling S3 is connected in terminal metal piece 6c2, and one end S4a of coiling S4 connectsIn terminal metal piece 6c1. In addition, one end S2a of coiling S2 is connected in terminal metal piece 6f2, and the other end S1b of coiling S1 connectsIn terminal metal piece 6f1. Moreover, if via the wiring graph on printed base plate (pad), make terminal metal piece 6f1,6f2 shortRoad and make terminal metal piece 6c1,6c2 short circuit, can realize identical with the coil component 1 shown in Fig. 1～Fig. 9 in factFunction.
For centre cap, terminal metal piece 6c1,6c2,6f1,6f2 and terminal metal piece 6a, 6b, 6d, 6e similarly form., the bottom surface S of terminal metal piece 6c1 for centre cap, 6c2,6f1,6f2 and corresponding flange partBEpimere face SB2Directly connectTouch, in addition, terminal metal piece 6c1,6c2 and hypomere face SB1Between be provided with gap d1(with reference to Fig. 8), this gap d1In be filled withBinding agent. Therefore, the height tolerance of the terminal surface between multiple terminal metal piece can be suppressed, each terminal metal piece can be guaranteedThe flatness of terminal surface. In addition, the hypomere face S under jumpB2Be formed with groove SB3, a part for binding agent is filled inDescribed groove SB3In, thereby can suppress the height tolerance of the terminal surface between multiple terminal metal piece.
Figure 12 is the equivalent circuit diagram of coil component 30.
As shown in figure 12, terminal metal piece 6a and 6b are a pair of balance input terminals, as the anodal side of primary sideSub-electrode IN+ and negative side terminal electrode IN-use. In addition, terminal metal piece 6e and 6d are a pair of balance output end,Side of the positive electrode terminal electrode OUT+ and negative side terminal electrode OUT-as primary side use. Terminal metal piece 6c1,6c2 doFor centre cap CT2, the CT2 of outlet side use, the short circuit mutually via pad LD1 when installation. Terminal metal piece 6f1,6f2Centre cap CT1 as input side uses, the short circuit mutually via pad LD2 when installation. Coiling S1, S2 form transformerPrimary coil, coiling S3, S4 form the secondary coil of transformer.
As described above, the coil component 30 of present embodiment, will hold via the pad LD1 on installation base plateSub-metalwork 6c1,6c2 are connected to each other, and via pad LD2, terminal metal piece 6f1,6f2 are connected to each other, and can become thusThe structure identical with the coil component 1 of the 1st embodiment.
Figure 13 is the figure that represents the structure of the coil component 40 of the 3rd embodiment of the present invention, particularly represents drum type core 2The general perspective view of shape.
As shown in figure 13, the coil component 40 of present embodiment is characterised in that, at the bottom surface of flange part 4A, 4B SBUnderSection face SB1Be formed with respectively recess 41,41. Recess 41 plays that terminal metal piece 6a～6f bonding is being fixed on to the protruding of correspondenceThe bottom surface S of edgeBTime the binding agent mode that rests on the position of regulation stop the effect of its outflow.
The recess 41 of flange part 4A side is arranged at the setting area of terminal metal piece 6a, 6b and establishing of terminal metal piece 6cPut the region between region, and be arranged at hypomere face SB1In with the nonoverlapping region of terminal metal piece 6a～6c. In addition, flangeThe recess 41 of the 4B of portion side is arranged between the setting area of terminal metal piece 6d, 6e and the setting area of terminal metal piece 6fRegion, and be arranged at hypomere face SB1In with the nonoverlapping region of terminal metal piece 6d～6f. The width of recess 41 is than flangeThe outer lateral side S of the 4A of portion, 4BSEpimere face SB2The slightly narrow degree of width, the two ends of the width of recess 41 are close to endThe setting area of sub-metalwork 6a～6f. Recess 41 is set to connect the outer lateral side S to flange part 4A, 4BS, but do not arriveInner side surface. In addition, recess 41 is in order to make the bond area of described below lead frame the least possible and be set up, as long as energyEnough reach this object, the degree of depth of recess 41, range (flat shape), position etc. just have no particular limits.
In addition, at the central portion of the width of flange part 4A, 4B, be formed with compared with recess 41 its width more narrow and deepSpend darker deep trouth 42. Although there is no particular limitation, this deep trouth 42 is used to fixing drum type in the time of the manufacture of coil componentCore 2. Deep trouth 42 prolongs at the thickness direction of flange part to connect from the outer lateral side of flange part 4A, 4B to the mode of inner side surfaceStretch setting, and cross the formation region of recess 41. In addition, in the present invention, and the nonessential deep trouth 42 that arranges, also can omit deep trouth42。
Figure 14 is the roughly solid that represents the state that terminal metal piece 6a～6f is installed on to drum type core 2 together with lead frameFigure.
As shown in figure 14, terminal metal piece 6a～6f and lead frame 43 are integrated, and especially, terminal metal piece 6a is supportedIn the link sheet 43a of lead frame 43, terminal metal piece 6b, 6c are supported on the link sheet 43b of lead frame 43. Similarly, terminalMetalwork 6d is supported on the link sheet 43a of lead frame 43, and terminal metal piece 6e, 6f are supported on the link sheet of lead frame 4343b. As illustrated, terminal metal piece 6a～6f with the integrated state of lead frame 43 under the bonded drum type core 2 that is fixed on,Cut off from lead frame 43 afterwards. Moreover terminal metal piece 6a～6c is arranged in order along the width of flange part 4A, this widthTerminal metal piece 6a(in direction the 1st terminal metal piece) and terminal metal piece 6b(the 2nd terminal metal piece) between insulation betweenEvery, than terminal metal piece 6b(the 2nd terminal metal piece) and terminal metal piece 6c(the 3rd terminal metal piece) between insulation gapWide. The structure of terminal metal piece 6d～6f is also identical.
Herein, terminal metal piece 6b and terminal metal piece 6c are connected to each other via linking sheet 43b, link sheet 43b and are positioned atThe bottom surface S of flange part 4ABHypomere face SB1Top. In such structure, if at the back side of terminal metal piece 6a～6f(or assigned position of the bottom surface of flange part) coating binding agent is fixed on the bottom surface S of flange part 4A, 4B with bondingB, haveThe binding agent of mobility is along linking sheet 43b and bottom surface SBBetween small gap even at the lower surface that links sheet 43bGround diffusion. But, as hereinafter described, in the situation that recess 41 is set, can stop the diffusion of such binding agent.
Figure 15 is the general lateral figure that is illustrated in the state of flange part 4A bonding terminal metal piece 6b, 6c, (a) represents not haveThe structure (the 1st embodiment) of recess 41, (b) expression has the structure of the present embodiment of recess 41. In addition, at flange part 4BAlso identical in the situation of bonding terminal metal piece 6e, 6f, thereby the description thereof will be omitted.
As shown in Figure 15 (a) shows, not having in the structure of recess 41, the back side in terminal metal piece 6b and flange part 4A'sHypomere face SB1Between binding agent flow out along direction shown in arrow F1, in addition, the back side in terminal metal piece 6c and flangeThe hypomere face S of the 4A of portionB1Between binding agent 11C flow out along direction shown in arrow F2. As described above, at terminal metal piece 6aThe bottom surface sections T of～6fBThe T of hypomere portionB2The back side and the hypomere face S of flange part 4A, 4BB1Between be provided with wittingly gap d1'sIn situation (with reference to Fig. 8 (b)), binding agent easily moves, and is made binding agent easily spread by capillarity. If binding agent11C widely adheres at the back side that links sheet 43b, links sheet 43b bonded, even if cut off terminal metal piece, and lead frame 43Removal also can become very difficult.
On the other hand, as shown in Figure 15 (b), have in the structure of present embodiment of recess 41, in terminal metal pieceThe hypomere face S of the back side of 6b and flange part 4AB1Between binding agent 11C flow out along direction shown in arrow F1, in addition, in endThe hypomere face S of the back side of sub-metalwork 6c and flange part 4AB1Between binding agent flow out along direction shown in arrow F2. But,In the situation that being provided with recess 41, in this position, gap expansion, thus capillarity dies down, and the outflow of binding agent 11C existsThe position of recess 41 stops, and is pettiness so link the accompanying binding agent 11C in the back side of sheet 43b. , binding agent 11C is notInflow scope W2, and rest on scope W1. Therefore, can easily remove and cut off the lead frame 43(after terminal metal piece evenKnot sheet 43b).
As described above, the coil component 40 of present embodiment, due to the bottom surface S at flange part 4A, 4BBUnderSection face SB1In be formed with recess 41 with the nonoverlapping region of terminal metal piece 6a～6f, thereby except the 1st embodiment send outOutside bright effect, can also suppress the outflow of the bonding of terminal metal piece 6a～6f binding agent when fixing, and can prevent from drawingWire frame 43 is bonded in the situation of flange part 4A, 4B. In addition, present embodiment is the coil with 6 terminal metal piece 6a～6fThe variation of parts 1, but also can be applied to the illustrated coil component with 8 terminal metal piece of the 2nd embodiment30。
The present invention is not limited to above embodiment, in the scope that does not depart from aim of the present invention, also can increaseVarious distortion, they are also contained in the present invention certainly.
For example, in above-mentioned embodiment, as the matrix that is wound with coil, use have be wound with coil volume core andBe arranged at the drum type core of the horizontal type of the pair of flanges portion at its two ends, but also can use the drum type core of so-called longitudinal type, can also makeWith other the core of shape. In addition, there is no particular limitation for the installation number of terminal metal piece.
The explanation of symbol
Claims (10)
1. a coil component, is characterized in that,
Possess:
The coil that the coiling of reeling forms;
Support the matrix of described coil;
Be connected with at least one terminal metal piece of the terminal part of described coil; And
Described terminal metal piece is bonded in to the 1st binding agent of described matrix,
Described matrix has and is provided with the 1st of the jump that is made up of epimere face and hypomere face,
Described terminal metal piece have be positioned at described matrix described the 1st upper and have and the described jump phase of described the 1stThe jump shape of coupling, and 1st portion of terminal overlapping with the both sides of described epimere face and described hypomere face,
Described the 1st portion of terminal of described terminal metal piece is directly contacted with described epimere face,
Between described the 1st portion of terminal of described terminal metal piece and described hypomere face, be provided with gap,
Described the 1st binding agent is filled in described gap.
2. coil component as claimed in claim 1, is characterized in that,
Further possess be formed at described jump under the groove of described hypomere face,
A part for described the 1st binding agent is filled in described groove.
3. coil component as claimed in claim 1 or 2, is characterized in that,
Described the 1st portion of terminal has:
When being positioned at the top of described epimere face and overlooking and overlapping the 1st terminal surface of this epimere face; And
See the 2nd terminal surface in the position lower than described the 1st terminal surface from described matrix,
The described terminal part of described coil is wired to described the 1st terminal surface,
Described the 2nd terminal surface is positioned on the extended line of described terminal part of described coil.
4. coil component as claimed in claim 3, is characterized in that,
The described terminal part of described coil is connected to described the 1st terminal surface by hot pressing.
5. coil component as claimed in claim 1 or 2, is characterized in that,
Described matrix has and described the 1st orthogonal the 2nd,
Described terminal metal piece is L font, further has the 2nd portion of terminal being positioned on described the 2nd,
Described the 2nd portion of terminal is bondd and is fixed on described the 2nd by the 2nd binding agent.
6. coil component as claimed in claim 5, is characterized in that,
Described matrix is to have the pair of flanges portion that is wound with the volume core of described coil and is disposed at the two ends of this volume coreDrum type core,
Described pair of flanges portion have be respectively connected in described volume core inner side surface, be positioned at the opposition side of described inner side surfaceOuter lateral side and with the orthogonal bottom surface of described outer lateral side,
Described the 1st of described matrix is the described bottom surface of described flange part,
Described the 2nd of described matrix is the described outer lateral side of described flange part.
7. coil component as claimed in claim 6, is characterized in that,
Described hypomere face is arranged at than the position of the described outer lateral side of the more close described flange part of described epimere face.
8. coil component as claimed in claim 1 or 2, is characterized in that,
Possess multiple described terminal metal piece.
9. coil component as claimed in claim 1 or 2, is characterized in that,
Further possess the recess that is formed at described hypomere face,
Described recess is arranged in described hypomere face and the nonoverlapping region of described terminal metal piece.
10. coil component as claimed in claim 9, is characterized in that,
Described terminal metal piece is included at least the 1～3rd terminal metal piece being arranged in order in the direction of regulation,
Compared between described the 1st terminal metal piece in the direction of described regulation and the insulation between described the 2nd terminal metal pieceEvery, the insulation gap between described the 2nd terminal metal piece and described the 3rd terminal metal piece in the direction of described regulation is wider,
Described recess is arranged at and in described hypomere face, is held in described the 2nd terminal metal piece and described the 3rd terminal metal pieceRegion.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012229267 | 2012-10-16 | ||
| JP2012-229267 | 2012-10-16 | ||
| JP2013-112975 | 2013-05-29 | ||
| JP2013112975A JP5811139B2 (en) | 2012-10-16 | 2013-05-29 | Coil parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103730229A CN103730229A (en) | 2014-04-16 |
| CN103730229B true CN103730229B (en) | 2016-05-18 |
Family
ID=50454263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310389547.0A Active CN103730229B (en) | 2012-10-16 | 2013-08-30 | Coil component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730229B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6303341B2 (en) * | 2013-09-03 | 2018-04-04 | Tdk株式会社 | Coil parts |
| JP6565807B2 (en) * | 2016-06-29 | 2019-08-28 | 株式会社村田製作所 | Coil parts |
| JP6759965B2 (en) * | 2016-10-19 | 2020-09-23 | Tdk株式会社 | Inductance element for magnetic sensor and current sensor equipped with it |
| DE202016008549U1 (en) * | 2016-11-04 | 2018-07-31 | Nidec Corporation | Busbar unit for an electric motor |
| JP6766697B2 (en) * | 2017-03-07 | 2020-10-14 | 株式会社村田製作所 | Coil parts |
| JP6830424B2 (en) * | 2017-10-12 | 2021-02-17 | 株式会社村田製作所 | Winding core and its manufacturing method and electronic components with winding |
| JP7056088B2 (en) * | 2017-11-10 | 2022-04-19 | スミダコーポレーション株式会社 | Coil parts |
| JP6784266B2 (en) * | 2018-01-30 | 2020-11-11 | 株式会社村田製作所 | Coil parts and manufacturing method of coil parts |
| JP7040410B2 (en) | 2018-03-07 | 2022-03-23 | 株式会社村田製作所 | Manufacturing method of coil parts |
| CN110246681B (en) * | 2018-03-07 | 2022-07-08 | 株式会社村田制作所 | Method for manufacturing coil component and apparatus for manufacturing coil component |
| JP6965848B2 (en) * | 2018-08-25 | 2021-11-10 | 株式会社村田製作所 | Coil parts |
| JP7450331B2 (en) * | 2018-10-03 | 2024-03-15 | Tdk株式会社 | Coil devices and pulse transformers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334572A (en) * | 2000-07-17 | 2002-02-06 | 株式会社村田制作所 | Plate type common mode choke |
| JP2003022916A (en) * | 2001-05-02 | 2003-01-24 | Taiyo Yuden Co Ltd | Coil component and method for manufacturing coil component |
| JP2003188018A (en) * | 2001-12-17 | 2003-07-04 | Minebea Co Ltd | Wound type common-mode chock coil |
| JP2009117627A (en) * | 2007-11-07 | 2009-05-28 | Tdk Corp | Surface-mounted type coil component |
| JP2011253889A (en) * | 2010-06-01 | 2011-12-15 | Tdk Corp | Coil component |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112009001388T5 (en) * | 2008-06-05 | 2011-04-28 | Koa Corp., Ina-shi | Chip induction coil and manufacturing method therefor |
| JP4737268B2 (en) * | 2008-10-31 | 2011-07-27 | Ｔｄｋ株式会社 | Surface mount pulse transformer and method and apparatus for manufacturing the same |
-
2013
- 2013-08-30 CN CN201310389547.0A patent/CN103730229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334572A (en) * | 2000-07-17 | 2002-02-06 | 株式会社村田制作所 | Plate type common mode choke |
| JP2003022916A (en) * | 2001-05-02 | 2003-01-24 | Taiyo Yuden Co Ltd | Coil component and method for manufacturing coil component |
| JP2003188018A (en) * | 2001-12-17 | 2003-07-04 | Minebea Co Ltd | Wound type common-mode chock coil |
| JP2009117627A (en) * | 2007-11-07 | 2009-05-28 | Tdk Corp | Surface-mounted type coil component |
| JP2011253889A (en) * | 2010-06-01 | 2011-12-15 | Tdk Corp | Coil component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103730229A (en) | 2014-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103730229B (en) | Coil component | |
| CN203242470U (en) | Coil component | |
| CN104425105B (en) | Coil block | |
| CN103608875B (en) | Electronic unit and manufacture method thereof | |
| US10600559B2 (en) | Coil component | |
| KR101215837B1 (en) | Coil component | |
| JP5811139B2 (en) | Coil parts | |
| US10930915B2 (en) | Coupling tolerance accommodating contacts or leads for batteries | |
| CN103430252A (en) | Laminated-type inductor element and method of manufacturing thereof | |
| EP2003661B1 (en) | Inductor | |
| US8878640B2 (en) | Common-mode choke coil | |
| EP2665070B1 (en) | Surface mount inductor | |
| JP2018046071A (en) | Electronic component | |
| CN204303519U (en) | Inductance assembly | |
| CN110349748A (en) | Electronic component assembly | |
| JP2009026028A (en) | Hybrid type ic card and method for manufacturing the same | |
| CN203746622U (en) | Modular coil plate, coil assembly and planar transformer with coil plate or coil assembly | |
| JP5429040B2 (en) | Coil parts manufacturing method | |
| CN104170536B (en) | Resin multilayer substrate | |
| CN205282254U (en) | Filter | |
| US20050254196A1 (en) | Surface-mountable component and method for the production thereof | |
| TWI436389B (en) | Electronic Parts | |
| US20150170825A1 (en) | Planar Transformer and Electrical Component | |
| JP5105317B2 (en) | Trance | |
| TWM346127U (en) | Filter assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |