CN101552106A - Wiring method of coil component - Google Patents
Wiring method of coil component Download PDFInfo
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- CN101552106A CN101552106A CN 200810184712 CN200810184712A CN101552106A CN 101552106 A CN101552106 A CN 101552106A CN 200810184712 CN200810184712 CN 200810184712 CN 200810184712 A CN200810184712 A CN 200810184712A CN 101552106 A CN101552106 A CN 101552106A
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- terminal fittings
- spiral
- fuse piece
- coil component
- iron core
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Abstract
The present invention provides a wiring method of a coil component with a simplified wiring position structure, including the following steps of preparing an iron core (2); preparing the terminal accessories, a holding piece for holding an end part of a wire coiling (6) guided from the iron core (2)on the terminal accessories, and melting piece for ensuring the wire coiling (6) held on the holding piece to be projected from the holding piece in a projecting direction of the holding piece; configuring, such that one end part of the wire coiling (6) along the melting piece and a most front end of the end part is more projecting that a front end part of the melting piece; a grounding step of making the other end of the wire coiling (6) obtains a grounding electrode for arc-welding; a discharging step of implementing an arc discharge from the most front of the end part of the wire coiling (6); a bead forming step, melting the most front end part of the wire coiling by using the electric arc formed in the discharging step, and the end part and the melting piece form a bead.
Description
Technical field
The present invention relates to a kind of mode of connection of coil component, particularly a kind of mode of connection (wire connection method) that utilizes welding.
Background technology
Coil component possesses iron core, be wound in spiral unshakable in one's determination and be assemblied in the terminal fittings that unshakable in one's determination and wiring spiral is installed on it installation position of substrate simultaneously, and spiral during to the terminal fittings wiring of spiral, is being used soldering.When the soldering spiral, for by in advance the overlay film for the treatment of the soldering position of spiral being peeled off and soldering reliably, need the soldering preliminary treatment of soldering plating etc., so it becomes the reason that increases man-hour.
In order to omit this unnecessary operation, shown in patent documentation 1, the applicant discloses by welding spiral and the electric and mechanical incorporate method of terminal fittings.
Patent documentation 1: TOHKEMY 2007-258201 communique
In order to utilize welding wiring spiral, terminal fittings possesses the riveted joint sheet of pushing spiral and as the riveted joint sheet of welding position totally two riveted joint sheets.Therefore, the space at wiring position increases, and the wiring position is outstanding etc. from the main body of coil component, produces bad from the miniaturization of coil component, the viewpoint of design freedom.
Summary of the invention
So, the object of the present invention is to provide a kind of mode of connection of having simplified the coil component of wiring position structure.
For addressing the above problem, the invention provides a kind of mode of connection of coil component, it possesses: iron core; Be wound in this spiral unshakable in one's determination; And the terminal fittings that connects the end of this spiral, it has following operation and carries out wiring, prepares the preparatory process unshakable in one's determination of this iron core; The terminal fittings preparatory process, it prepares this following terminal fittings, and this terminal fittings has the terminal fittings main part and fuse piece outstanding from this terminal fittings main part and that can dispose along the part of this spiral; Arrangement step, its end that is configured to make this spiral is along this fuse piece and make the more outstanding than the leading section of this fuse piece foremost of this end; Ground connection operation with the other end ground connection of this spiral; The discharge operation, it carries out arc discharge foremost from this end of this spiral; Bead forms operation, its utilize electric arc that this discharge operation forms from this end make this spiral fusing foremost, and with this end and this fuse piece formation bead.
According to such method, because with spiral ground connection to be welded, so the impingement position of electric arc is stable and can make electric arc strike against spiral reliably.Therefore, when utilizing the arc-melting spiral, can remove the overlay film of spiral, be involved in reliably and melt, can preferably weld spiral and fuse piece in abutting connection with the fuse piece of configuration.In addition, because fuse piece is outstanding from the terminal fittings main part,, can melt equally with spiral so clash into fuse piece with the same electric arc of spiral.According to these methods, owing to do not need riveted joint sheet,, can improve the degree of freedom of design so quantity that can less riveted joint sheet can realize the miniaturization of coil component as the welding position.
Here, preferably, in this terminal fittings preparatory process, prepare this following terminal fittings, this terminal fittings has a part that forms this terminal fittings main part and the maintaining part of the end of this spiral of keeping drawing from this iron core, and the direction that this fuse piece is drawn from this maintaining part to this spiral that will remain in this maintaining part from this maintaining part is outstanding, in this arrangement step, makes the more outstanding and be disposed at this maintaining part than the leading section of this fuse piece foremost of this end.
In the terminal fittings preparatory process, prepare following terminal fittings, this terminal fittings has a part that forms the terminal fittings main part and the maintaining part of the end of the spiral that keeps drawing from iron core, and the direction that fuse piece is drawn to the spiral that will remain in maintaining part from maintaining part is outstanding, in arrangement step, make giving prominence to than the leading section of fuse piece foremost of an end and be disposed at maintaining part, therefore, the end that can utilize maintaining part to keep spiral reliably, it is mobile that the impact in the time of can more effectively suppressing spiral along fuse piece and fuse piece in abutting connection with distribution of electric arc bump causes.
In addition, preferably, in this arrangement step, this spiral and this fuse piece are superimposed.By such configuration spiral, when making electric arc bump spiral, can be involved in and melt fuse piece more reliably.
In addition, preferably, in this terminal fittings preparatory process, prepare to have this big maintaining part of this fuse piece thermal capacity of ratio of heat capacities.According to such method, only melt fuse piece, promptly can keep maintaining part reliably.And, by the required electric weight of suitable adjusting arc discharge, can keep maintaining part more reliably.
In addition, preferably, also possesses the spiral preparatory process of preparing this spiral, in this spiral preparatory process, preparation comprises the pre-arcing operation of peeling off this overlay film and follows the main discharge operation that this bead formation operation is carried out with this spiral of overlay film covering lead, this discharge operation.
According to such method, be involved in overlay film in the time of can suppressing to melt spiral.Therefore, the dirt that the carbide that a large amount of violent simultaneously burnings of overlay film generates in the time of can suppressing to melt produces and the gas of generation.
In addition, preferably, in this terminal fittings preparatory process, prepare front end is processed as this fuse piece of taper shape.According to such method, electric arc clashes into the taper part of fuse piece easily.Therefore, can clash into fuse piece more reliably.
In addition, preferably, this iron core has drum-shaped core and periphery iron core, also possess this terminal fittings is assemblied in this assembly process unshakable in one's determination, in this iron core preparatory process, this reel is around in this drum-shaped core, and this periphery iron core is disposed at the periphery of this drum-shaped core, in this assembly process, this terminal fittings is assemblied in this periphery iron core.
According to such method, heat is unshakable in one's determination mobile to periphery from terminal fittings.Therefore, can suppress terminal fittings and form high temperature, can suppress the fusing of maintaining part.
In addition, preferably, in this iron core preparatory process, form recess on this periphery iron core, in this assembly process, this terminal fittings is to be disposed at this maintaining part form in this recess and to be assemblied in this periphery iron core.According to such method, it is outstanding from the outside of coil component to suppress wiring position such as bead.
In addition, preferably, in this terminal fittings preparatory process, prepare this maintaining part form tabular and make this fuse piece to this outstanding terminal fittings of the direction of the Surface Vertical of this maintaining part.
In the terminal fittings preparatory process, prepare maintaining part form tabular and make fuse piece to the outstanding terminal fittings of direction of the Surface Vertical of maintaining part, therefore, the maintained portion spiral of drawing is in along maintaining part and the vertical bending of fuse piece and the state that is limited to maintaining part and hung by card.By such suspension, can reliably spiral be located along fuse piece.
In addition, preferably, in this terminal fittings preparatory process, prepare to be processed to along with to cardinal extremity near and make and this fuse piece of expanding gradually to the width of the direction quadrature of cardinal extremity from front end.According to such structure, can make the base end side of fuse piece be difficult to fusing.Therefore, can suppress to be positioned at the maintaining part excess molten of the base end side of fuse piece.
In addition, preferably, in this terminal fittings preparatory process, prepare this following terminal fittings, this terminal fittings has: the accessory pedestal part, and it forms the part of this terminal fittings main part; Maintaining part, the end that it is outstanding from this accessory pedestal part and keep this spiral of drawing from this iron core with the end of this this spiral of accessory pedestal part clamping; And from this outstanding fuse piece of this accessory pedestal part.
In the terminal fittings preparatory process, prepare following terminal fittings, this terminal fittings has: the accessory pedestal part, it forms the part of terminal fittings main part; Maintaining part, the end that it is outstanding from the accessory pedestal part and keep the spiral of drawing from iron core with the end of accessory pedestal part clamping spiral; From the outstanding fuse piece of accessory pedestal part, therefore, by with accessory pedestal part and maintaining part clamping and the end that keeps spiral, the end that can make spiral is difficult to generation with respect to the dislocation of fuse piece.
In addition, preferably, in this terminal fittings preparatory process, prepare to be processed to along with to cardinal extremity near and make and this maintaining part of expanding gradually to the width of the direction quadrature of cardinal extremity from front end.
In the terminal fittings preparatory process, prepare to be processed to along with to cardinal extremity near and make and the maintaining part of expanding gradually to the width of the direction quadrature of cardinal extremity from front end, therefore, when arc welding, can bend gradually to cardinal extremity from the front end of maintaining part.Thereby, utilize the maintaining part bent like this, can wrap into spiral and keep spiral reliably.
In addition, preferably, in this terminal fittings preparatory process, prepare this following terminal fittings, this terminal fittings has: form the part of this terminal fittings main part and be used to the two dichotomy portion of the part of this spiral that the card extension draws from this iron core; From this outstanding fuse piece of this pair dichotomy portion.
In the terminal fittings preparatory process, prepare following terminal fittings, this terminal fittings has a part that forms the terminal fittings main part and is used to two dichotomy portions of end of the spiral that the card extension draws from iron core and the fuse piece of giving prominence to from two dichotomy portions, therefore, be hung on two dichotomy portions by end card with spiral, the end of spiral can be kept and the maintaining part of the end of spiral need not be provided for keeping, thereby can simplify the structure of terminal fittings, can omit and utilize maintaining part to keep the staking process of the end of spiral.
In addition, preferably, in this terminal fittings preparatory process, the circumference of preparing this fuse piece has this terminal fittings in bight.
In the terminal fittings preparatory process, prepare following terminal fittings, the edge portion of the part of the terminal fittings main part that is extruded with fuse piece of terminal fittings forms curve-like, and the circumference of fuse piece has the bight, therefore, can make the electric arc that utilizes arc discharge to produce concentrate on the bight of fuse piece.Thereby, can prevent that electric arc from striking fuse piece place in addition.
In addition, preferably, in this terminal fittings preparatory process, prepare to be extruded with this terminal fittings of the curved shape of edge portion of part of this terminal fittings main part of this fuse piece.In the terminal fittings preparatory process,, strike against the terminal fittings main part so can prevent electric arc owing to prepare to be extruded with this terminal fittings of the curved shape of edge portion of part of this terminal fittings main part of this fuse piece.
This terminal fittings in the bight of this fuse piece only is set.In the terminal fittings preparatory process, prepare only to be provided with the terminal fittings in the bight of a fuse piece, therefore, can make and utilize the impact site of the electric arc that arc discharge produces to concentrate on a position.
To sum up, the present invention can provide a kind of mode of connection of coil component of the structure of having simplified the spiral position.
Description of drawings
Fig. 1 is the stereogram under the completion status of the coil component that relates to of embodiment of the present invention.
Fig. 2 (a) is the front view of the terminal fittings of the coil component that relates to of embodiment of the present invention, (b) is end view.
Fig. 3 is the stereogram under the state before the wiring of the coil component that relates to of embodiment of the present invention.
Fig. 4 be the coil component that relates to embodiment of the present invention the wiring concerned process steps, be the vertical view of electric arc bump spiral state.
Fig. 5 be the coil component that relates to embodiment of the present invention the wiring concerned process steps, be the vertical view of spiral molten state.
Fig. 6 be the coil component that relates to embodiment of the present invention the wiring concerned process steps, be the vertical view of fuse piece molten state.
Fig. 7 is the wiring concerned process steps of the coil component that relates to embodiment of the present invention, the i.e. vertical view of a square end subassembly wiring completion status.
Fig. 8 is the synoptic diagram along the VII-VII line cross section of Fig. 7.
Fig. 9 is the partial top view of first variation of the fuse piece of the coil component that relates to of embodiment of the present invention.
Figure 10 is the partial top view of second variation of the fuse piece of the coil component that relates to of embodiment of the present invention.
Figure 11 is the vertical view of the coil component that relates to of the 3rd variation of embodiment of the present invention.
Figure 12 is the partial perspective view of flange of having assembled the terminal fittings of the coil component that the 3rd variation of embodiment of the present invention relates to.
Figure 13 is the stereogram that an end card of spiral is hung on the two dichotomy portion state of coil component in the manufacture method of the coil component that relates to of the 4th variation of expression embodiment of the present invention.
The stereogram of the coil component that the manufacture method of Figure 14 coil component that to be expression related to by the 4th variation of embodiment of the present invention is made.
Figure 15 is the stereogram of the state of the maintaining part that an end card of spiral is hung on coil component in the manufacture method of the coil component that relates to of the 5th variation of expression embodiment of the present invention.
Figure 16 is the major part stereogram of the state of the maintaining part that an end card of coil is hung on coil component in the manufacture method of the coil component that relates to of the 5th variation of expression embodiment of the present invention.
Figure 17 (a) is the vertical view of the state of the maintaining part that an end of coil remains in coil component in the coil component manufacture method that relates to of the 6th variation of expression embodiment of the present invention, (b) is end view.
Figure 18 is the figure of terminal fittings that is assemblied in the toroidal core of coil component in the coil component manufacture method that relates to of the 6th variation of expression embodiment of the present invention, and figure (a) is a vertical view, and figure (b) is an end view, and figure (c) is an end view.
Figure 19 is the stereogram of arc welding appearance in the manufacture method of the coil component that relates to of the 7th variation of expression embodiment of the present invention.
Figure 20 is the stereogram that expression utilizes the coil component that the manufacture method of the coil component that the 7th variation of our invention execution mode relates to makes.
Figure 21 is the end view of terminal fittings that is assemblied in the toroidal core of coil component in the manufacture method of the coil component that relates to of the 8th variation of expression embodiment of the present invention.
The drawing reference numeral explanation:
1,201,501 ... coil component; 2 ... unshakable in one's determination; 3 ... drum-shaped core; 3A ... flange; 4 ... the periphery iron core; 4a ... the hole; 4b ... recess; 5,105,205,305,405,505,605 ... terminal fittings; 5A ... the department of assembly; 5B, 105B, 305B, 405B, 505B, 605B ... maintaining part; 5C, 105C, 305C, 405C, 505C, 605C ... fuse piece; 6 ... spiral; 7 ... bead; 8 ... arc welder; 9 ... grounding electrode; 51 ... base material; 52 ... zinc-plated.
Embodiment
Below, will the coil component that embodiment of the present invention relates to and the mode of connection of coil component be described based on Fig. 1 to Fig. 8.The coil component 1 that Fig. 1 represents mainly comprises iron core 2, terminal fittings 5 and spiral 6.
Unshakable in one's determination 2 are made of drum-shaped core 3 and periphery iron core 4.Drum-shaped core 3 disposes roughly discoid flange 3A at two ends, and uses the not shown volume core that spiral 6 is reeled to connect between the flange 3A at two ends.Periphery 4 profiles unshakable in one's determination constitute octagonal roughly ring-type, and are formed with the hole 4a that drum-shaped core 3 can be inserted at this octagonal middle body.In addition, be formed with the recess 4b of ditch shape at an end face (upside end face) of the perforation direction of the hole of periphery iron core 4 4a, recess 4b extends to the outer peripheral face of periphery iron core 4 continuously from hole 4a inner surface.The central shaft that recess 4b at one end is formed at respectively with hole 4a on the face is a side radially at center and two positions of opposite side.Periphery iron core 4 is disposed at the periphery of drum-shaped core 3 and constitutes unshakable in one's determinationly 2, makes that drum-shaped core 3 axially is a direction of insertion and in the patchhole 4a with not shown volume core.
For terminal fittings 5, as shown in Figure 8, on the base material 51 of phosphor bronze (about 1000 ℃ of fusing point) having been implemented nickel plating (1450 ℃ of fusing points), implement zinc-plated 52 (about 230 ℃ of fusing points), as shown in Figure 1, it is assemblied in the position of the recess 4b of the position of recess 4b of a side of periphery iron core 4 and opposite side, as Fig. 2 (a) (b) shown in, it comprises the 5A of department of assembly, maintaining part 5B and fuse piece 5C constitute, wherein, the 5A of department of assembly possesses side wall portion with two arms that stretch out from side wall portion and become roughly コ word shape, maintaining part 5B extends from the arm of the 5A of department of assembly, and fuse piece 5C extends from maintaining part 5B.
The 5A of department of assembly is assemblied in periphery iron core 4 in the following manner, that is, make an arm that is provided with maintaining part 5B be positioned at recess 4b and the part that will constitute the recess 4b of periphery iron core 4 is inserted roughly コ word shape inside.In the 5A of department of assembly, as shown in Figure 8, with the arm that is provided with maintaining part 5B slightly towards the interior lateral buckling of コ word shape.Thereby, under the state that is assemblied in periphery iron core 4, between the cardinal extremity part of the arm of the 5A of department of assembly and periphery iron core 4, be formed with the space.
Maintaining part 5B constitutes, under terminal fittings 5 is assemblied in state on the periphery iron core 4, from the lateral margin of the arm of the 5A of department of assembly that extends with above-mentioned radially almost parallel to extending with the direction of above-mentioned radially quadrature.
Fuse piece 5C constitutes, under terminal fittings 5 is assemblied in state on the periphery iron core 4, to extending with above-mentioned radial parallel and towards the outer circumferential side of periphery iron core 4, and shown in Fig. 2 (b), the front end of fuse piece 5C is more outstanding than the side wall portion of department of assembly 5A from maintaining part 5B.
In addition, fuse piece 5C since its volume compare with maintaining part 5B be configured less and elongated, so thermal capacity is compared little with maintaining part 5B.Melt and formation bead 7 (Fig. 1) end of this fuse piece 5C and spiral 6.The 5A of department of assembly, maintaining part 5B are equivalent to the terminal fittings main part.
Below, will the method that spiral 6 is wired to terminal fittings 5 in the coil component 1 of above-mentioned structure be described.At first, prepare as by overlay film the spiral 6 (spiral preparatory process) of lead, prepare above-mentioned drum-shaped core 3 and periphery iron core 4 (preparatory process unshakable in one's determination), prepare above-mentioned terminal fittings 5 (terminal fittings preparatory process), terminal fittings 5 is assemblied in periphery iron core 4 (assembly process), spiral 6 is wound in not shown volume core, and the never illustrated volume core in the two ends of spiral 6 is drawn.
Coiling spiral 6 and double-end drum-shaped core 3 are inserted into the hole 4a of the periphery iron core 4 that is equipped with terminal fittings 5, as shown in Figure 3, the never illustrated volume core in the end of spiral 6 is drawn and make it extend (arrangement step) along terminal fittings 5,5.In this arrangement step, the portion foremost that spiral 6 is configured to its end gives prominence to from the front end of fuse piece 5, and maintaining part 5B partly bends at cardinal extremity, to keep spiral 6 with maintaining part 5B and the 5A of department of assembly.At this moment, the leading section of spiral 6 and fuse piece 5C roughly are superimposed contiguously.
As shown in Figure 4, remain in the end of spiral 6 under the state of terminal fittings 5, the distolateral employing grounding electrode 9 of another of spiral 6 and ground connection (ground connection operation) make arc welder 8 distolateral and arc discharge makes electric arc strike against the portion foremost (discharge operation) of an end of spiral 6 near spirals 6.Because spiral 6 maintained portion 5B keep, thus moving due to the impact when being difficult to the electric arc bump takes place, thus make it strike against the portion foremost of spiral 6 reliably.In this discharge operation, at first, the supply electric weight that relates to by the arc discharge of adjusting arc welder 9 discharges, and makes the lead of spiral 6 not have fusing but the heat of generation and impact make overlay film disperse (pre-arcing operation).As shown in Figure 5, under the state of overlay film being peeled off by the pre-arcing operation, make the arc discharge (main discharge operation) of electric energy of the copper cash partial melting of spiral 6.By twice discharge of pre-arcing operation and main discharge operation, when spiral 6 fusings, can suppress overlay film and be involved in melt portions.Therefore, a large amount of overlay film formed dirt of carbide that generates of burning, the generation of gas tempestuously simultaneously in the time of can suppressing to melt, thus can form good melt portions.
Fuse piece 5C clashes into so it similarly is suitable for electric arc with spiral 6 owing to adopt with spiral 6 stacks and from maintaining part 5B and the outstanding formation of the 5A of department of assembly, and as shown in Figure 6, fuse piece 5C also melts and is involved in the fusing position of spiral 6, thereby can suitably weld.In addition, specific heat capacity is big mutually with fuse piece 5C owing to the maintaining part 5B that is provided with fuse piece 5C, so under the situation that melts fuse piece 5C and spiral 6, maintaining part 5B also is difficult to fusing, thereby can suppress maintaining part 5B excess molten.Thereby, in fuse piece 5 fusing but maintaining part 5B not have under the condition of fusing, the electric energy (heat) of adjustment arc welder 9 can keep maintaining part 5B reliably.
Also there is the danger that is heated and melts at an arm and side wall portion as near the 5A of department of assembly the welding position, as shown in Figure 8, because side wall portion and periphery unshakable in one's determination 4 contact, so hot contact position from this side wall portion and periphery iron core 4 diffuses to periphery iron core 4.Therefore, the heat that produces when the 5A of department of assembly goes up the accumulation of heat welding can be suppressed at, the 5A of department of assembly fusing can be suppressed.In addition, owing to be formed with the gap between the arm of the 5A of department of assembly and periphery iron core 4, institute melts zinc-plated 52 so that the arm of the 5A of department of assembly is a high temperature (zinc-plated 52 degree that melt: 230 spend more than) to a certain degree.Fusing forms under the state of bead 7 entering to maintaining part 5B position as shown in Figure 7, and end utilizes the wiring of the welding of a side terminal accessory 5 and spiral 6.Here, as shown in Figure 1, though bead 7 is formed on the arm of the 5A of department of assembly, the arm of the 5A of department of assembly is positioned at the recess 4b of periphery iron core 4, and therefore, it is excessively outstanding above periphery iron core 4 to suppress bead 7.
As shown in Figure 8, under the state of the wiring that utilizes welding that is through with, bead 7 connects in the mode of the maintaining part 5B that nips and is connected with spiral 6 simultaneously.Connect according to mode, thereby can adopt big connecting portion (first join domain), so can connect maintaining part 5B and bead 7 more firmly with the maintaining part 5B that nips.At the arm place of the 5A of department of assembly, zinc-plated 52 heat when being formed bead 7 melt, afterwards bonding and bead 7 is connected (second join domain) with the position of the arm of the 5A of department of assembly.Owing to when making terminal fittings 5, constitute zinc-platedly 52,, can realize the shorteningization of operation so need not to prepare to be used for the adhesive of bonding bead 7 and the 5A of department of assembly by plating.And, about zinc-plated 52, do not need necessarily to be formed at terminal fittings 5 (two faces of the face of the installed surface of installing to not shown substrate with periphery 4 faces that contacts unshakable in one's determination and configuration and the end of spiral 6), can only be formed on yet and dispose terminal fittings 5 on the face of the end of the installed surface of not shown substrate installation and spiral 6.
In addition, because two positions maintenances of bead 7 maintained portion 5B and the 5A of department of assembly, so bead 7 is firmly fixed at terminal fittings 5 and is preferably kept.Therefore,, also can suppress bead 7 to come off, can preferably keep the wiring position from terminal fittings 5 even if bead 7 contacts with miscellaneous part etc.In addition, zinc-plated 52 connect part, maintaining part 5B and the 5A of department of assembly that spiral 6 does not have fusing by what this had melted.Therefore, at maintaining part 5B place, can keep spiral 6 more firmly.
In the terminal fittings 5 and spiral 6 of opposite side, also the terminal fittings 5 with welding one side similarly utilizes arc welding to carry out wiring with spiral 6, finishes the coil component 1 that Fig. 1 represents.And in the wiring of the terminal fittings 5 of opposite side, the terminal fittings 5 with a side is electrically connected with spiral 6, and therefore, the terminal fittings 5 that makes a side is connected with grounding electrode 8 and ground connection gets final product.
To sum up, do not need riveted joint sheet (maintaining part), can reduce the number of riveted joint sheet, thereby can realize the miniaturization of coil component, can improve the degree of freedom of design as the welding position.
In the present embodiment, though with zinc-plated 52 is that adhesive is bonding with terminal fittings 5 and bead 7 at second bonding region, but be not limited to this as adhesion means, also can use hot castable resin, common adhesive or welding etc. and terminal fittings 5 and bead 7 is bonding.In addition, as shown in Figure 9,, as shown in Figure 9, also its front end can be formed the taper shape as first variation at fuse piece 5C place.According to such formation, electric arc clashes into easily.In addition, as shown in figure 10, also can constitute from the fore-end of fuse piece 5C as second variation and to enlarge gradually towards its width of maintaining part 5B (cardinal extremity part).According to such formation, can make the cardinal extremity of fuse piece 5C partly be difficult to fusing, thereby can suppress to be positioned at the maintaining part 5B excess molten of the base end side of fuse piece 5C.
In addition, among Fig. 3,, may not necessarily need join, fuse piece 5C is positioned near the end of spiral 6 though fuse piece 5C and spiral 6 are superimposed contiguously.At this moment, as shown in Figure 5, the end of spiral 6 fusing and expanding, thus near the fuse piece 5C that are positioned at the spiral 6 are contacted and conducting with spiral 6, and fuse piece 5C also can be clashed into by electric arc.
In addition, the invention is not restricted to above-mentioned execution mode, can also in the scope of claims record, carry out various distortion and improvement.As shown in figure 11, for example as the 3rd variation, in the iron core 102 that constitutes by volume core 103 and the flange 104 that is arranged at the two ends of core 103, with the terminal fittings 5 of execution mode similarly, the terminal fittings 105 that will possess the 105A of department of assembly, maintaining part 105B and fuse piece 105C is assemblied in flange 104.And, on terminal fittings 105, lay spiral 106, similarly the end and the fuse piece 105C of spiral 106 are welded with execution mode, as shown in figure 12, can form the bead 107 same with the bead 7 of execution mode.
In addition, to shown in Figure 14, as the 4th variation, it also can be in the terminal fittings preparatory process as Figure 13, prepares to have the terminal fittings 205 of the two dichotomy portion of the part that forms the terminal fittings main part.
More specifically, the terminal fittings 205 of coil component 201 (Figure 14) has installation portion 205A and wire connecting portion 205B, and is provided with wire connecting portion 205B on an end of the long side direction of installation portion 205A.Wire connecting portion 205B is arranged to, spiral 6 also not by the state of wiring under, between itself and installation portion 205A, below Figure 13, reduce one deck via the flexing position.
As shown in figure 13, this of wire connecting portion 205B reduces the part of the part of one deck, formation to the face vertical direction of wire connecting portion 205B, promptly bend and outstanding fuse piece 205C to the top of Figure 13, formed two dichotomy portions as fuse piece 205C by the part of the wire connecting portion 205B that bent, this pair dichotomy portion forms the spiral card that cuts shape to the direction of installation portion 205A and hangs recess 205a.As shown in figure 13, in the distribution operation, the spiral card that is hung on two dichotomy portions as the part card of an end of following spiral 6 is hung recess 205a.
As shown in figure 13, when this scale was hung part as an end of spiral 6, fuse piece 205C was along the state of an end of spiral 6.And, as shown in figure 14, utilize the arc discharge in the discharge operation, fuse piece 205 is formed bead 201A with the end fusing of spiral 6.Wire connecting portion 205B, installation portion 205A with two dichotomy portion are equivalent to the terminal fittings main part.
In the terminal fittings preparatory process, because the terminal fittings 205 of the fuse piece 205C that has prepared to have two dichotomy portions and given prominence to from two dichotomy portion, so be hung on two dichotomy portions by end card with spiral 6, can keep the end of spiral 6 and need not to be provided for to keep the maintaining part of the end of spiral 6, therefore, can simplify the structure of terminal fittings 205, can omit and utilize maintaining part to keep the staking process of the end of spiral 6.
In addition, to shown in Figure 16, as the 5th variation, it also can be to prepare terminal fittings 305 in the terminal fittings preparatory process as Figure 15, and wherein, accessory 305 has: the accessory pedestal part 305A that forms the part of terminal fittings main part; From the outstanding maintaining part 305B of accessory pedestal part 305A; From the outstanding fuse piece 305C of accessory pedestal part 305A.As shown in figure 15, accessory pedestal part 305A can with as the part of the end of spiral 6 relative to, in addition, as shown in figure 15, by maintaining part 305B bending can be made its with as the part of the end of spiral 6 relative to.And, in the distribution operation, by further bending maintaining part 30, and with the end of accessory pedestal part 305A and maintaining part 305B clamping spiral 6, thereby keep part as the end of the spiral 6 of drawing from iron core.With accessory pedestal part 305A and maintaining part 305B clamping and keep part, can make position be difficult to misplace with respect to the part of the end of the spiral 6 of fuse piece 305C as the end of spiral 6.
As shown in figure 15, maintaining part 305B be processed to along with to the cardinal extremity that is connected with accessory pedestal part 305A near and make and expand gradually to the width of the direction quadrature of cardinal extremity from front end.Therefore, when arc welding, can bend gradually to cardinal extremity from the front end of maintaining part 305B.Consequently, can wrap into spiral 6 and keep spiral 6 reliably with the maintaining part 305B that is bent like this.
As shown in figure 16, fuse piece 305C is outstanding to the lower left of Figure 16 from accessory pedestal part 305A, and the ora terminalis of the figure upside of its jag is as bight 305D.Relative therewith, the ora terminalis of downside is viewed as curve-like as the curved surface 305E of bending from the direction vertical with the face of accessory pedestal part 305A.Like this, because fuse piece 305C has bight 305D, so can make the electric arc that utilizes arc discharge and produce concentrate on the bight 305D of fuse piece 305C.Therefore, can prevent as much as possible that electric arc from striking fuse piece 305C place in addition.In addition, owing to only be provided with the bight 305D of a fuse piece 305C, so can make impact site concentrate on a position by the formed electric arc of arc discharge.
As shown in figure 15, in the distribution operation, when from the terminal fittings 305 that constitutes a coil component to constitute with this coil component when terminal fittings 305 cards of another coil component of configuration are hung, the end of spiral 6 is along the state of fuse piece 305C.And, can utilize the arc discharge of discharge in the operation, with the end fusing of fuse piece 305C and spiral 6 and formation does not have illustrated bead.Accessory pedestal part 305A is equivalent to the terminal fittings main part.
In addition,, same as Figure 17 with the 5th variation to shown in Figure 180, as the 6th variation, it also can be to prepare terminal fittings 405 in the terminal fittings preparatory process, and wherein, terminal fittings 405 has: the accessory pedestal part 405A that forms the part of terminal fittings main part; From the outstanding maintaining part 405B of accessory pedestal part 405A; From the outstanding fuse piece 405C of accessory pedestal part 405A.
More specifically, as shown in figure 17, terminal fittings 405 possesses: be fixed in the roughly コ word shape 405F of portion with the outer peripheral face of the periphery iron core 4 of setting around drum-shaped core 3; From the 405F of コ word shape portion roughly to the circumferential extended circumferential profiling 405G of portion of periphery iron core 4; Being approximate vertical and mounting with respect to the circumferential profiling 405G of portion has the accessory pedestal part 405A of an end of spiral 6; By extending from accessory pedestal part 405A and turning back and with the 405A clamping of accessory pedestal part and keep the maintaining part 405B of an end of spiral 6; From accessory pedestal part 405A to the axially outstanding of an end of spiral 6 and along the fuse piece 405C of the end configuration of spiral 6.
As shown in figure 17, in the distribution operation, be positioned on accessory pedestal part 405A and the fuse piece 405C as the part of an end of the spiral 6 of drawing from iron core, an end of spiral 6 is position relation more outstanding than fuse piece 405C on the projected direction of fuse piece 405C.And, as shown in figure 18, flat maintaining part 405B is turned back, and with an end of accessory pedestal part 405A and maintaining part 405B clamping spiral 6.And, can utilize the arc discharge of discharge in the operation, the end of fuse piece 405C and spiral 6 is melted and form not shown bead.Accessory pedestal part 405A is equivalent to the terminal fittings main part.
In addition, to shown in Figure 20, as the 7th variation, it also can be to prepare terminal fittings 505 in the terminal fittings preparatory process as Figure 19, wherein, terminal fittings 505 has: the accessory pedestal part 505A that forms the part of the terminal fittings main part that constitutes coil component 501 (Figure 20); From the outstanding maintaining part 505B of accessory pedestal part 505A; From the outstanding fuse piece 505C of maintaining part 505B, and fuse piece 505C is to outstanding with the direction of the Surface Vertical that forms tabular maintaining part 505B.
More specifically, a part that is fixed in the roughly コ word shape portion of the outer peripheral face of the toroidal core that is provided with around the iron core of cydariform type forms accessory pedestal part 505A, and maintaining part 505B is arranged to outstanding and turn back from accessory pedestal part 505A.Fuse piece 505C is arranged to the lower edge represented from Figure 19 of maintaining part 505B to respect to the surface of maintaining part 505B and vertical direction, and promptly extend the lower right of Figure 19.
As shown in figure 19, in the distribution operation, the spiral 6 of drawing from iron core, by between the maintaining part 505B that is folded back and the accessory pedestal part 505A and draw downwards from the top of Figure 19, link position at maintaining part 505B and fuse piece 505C, imitate this link position and vertical the bending, thereby along the projected direction of fuse piece 505C to fuse piece 505C, promptly the lower right of Figure 19 is to drawing with the card extension.By drawing like this, can reliably spiral 6 be located along fuse piece 505C.One end of spiral 6 is configured to more outstanding than the jag of fuse piece 505C.And, can utilize the arc discharge in the discharge operation, the end of fuse piece 505C and spiral 6 is melted and formation bead 501A.The roughly コ word shape portion, the maintaining part 505B that comprise accessory pedestal part 505A are equivalent to the terminal fittings main part.
In addition, as the 8th variation, also can be the terminal fittings 5 that in the terminal fittings preparatory process, replaces present embodiment, and prepare following terminal fittings, the fuse piece of this terminal fittings has the bight, and the edge portion of the part of the terminal fittings main part that fuse piece is given prominence to forms curve-like.And then, also can be in the terminal fittings preparatory process, preparation only is provided with the terminal fittings in the bight of a fuse piece.
More specifically, as shown in figure 21, the left upper end that Figure 21 of fuse piece 605 represents has bight 605H, and the lower-left end is a curve-like.Thereby fuse piece 605 only has a bight 605H.The part of maintaining part 605B is that the left upper end 605I of edge portion in the left side of the figure that given prominence to of fuse piece 605C is a curve-like.According to such structure, can make the electric arc that produces by arc discharge concentrate on the bight 605H of fuse piece 605C.Therefore, can prevent that electric arc from striking fuse piece 605C place in addition.And then, owing to only be provided with the bight 605H of a fuse piece 605C, so can make the impact site of the electric arc that produces by arc discharge concentrate on a position.Maintaining part 605B is equivalent to the terminal fittings main part.
Claims (16)
1, a kind of mode of connection of coil component, described coil component possesses: iron core; Be wound in the spiral of described iron core; The terminal fittings that connects the end of described spiral,
The mode of connection of described coil component is characterised in that,
Have following operation and carry out wiring:
Preparatory process unshakable in one's determination, it prepares described iron core;
The terminal fittings preparatory process, it prepares described terminal fittings, and described terminal fittings has the terminal fittings main part and fuse piece outstanding from described terminal fittings main part and that can dispose along the part of described spiral;
Arrangement step, its end that makes described spiral is along described fuse piece and make being configured highlightedly than the leading section of described fuse piece foremost of a described end;
The ground connection operation, it is with the other end ground connection of described spiral;
The discharge operation, it carries out arc discharge foremost from the described end of described spiral;
Bead forms operation, and its electric arc that utilizes described discharge operation to form melts from the described spiral of making foremost of a described end, and forms bead with a described end and described fuse piece.
2, the mode of connection of coil component according to claim 1 is characterized in that,
In described terminal fittings preparatory process, prepare following terminal fittings,
Described terminal fittings has a part that forms described terminal fittings main part and the maintaining part of the end of the described spiral that keeps drawing from described iron core, and the direction that described fuse piece is drawn from described maintaining part to the described spiral that will remain in described maintaining part from described maintaining part is outstanding
In described arrangement step, make the more outstanding and be disposed at described maintaining part than the leading section of described fuse piece foremost of a described end.
3, the mode of connection of coil component according to claim 1 and 2 is characterized in that,
In described arrangement step, described spiral and described fuse piece are superimposed.
4, according to the mode of connection of claim 2 or 3 described coil components, it is characterized in that,
In described terminal fittings preparatory process, prepare the big described maintaining part of thermal capacity of the described fuse piece of ratio of heat capacities.
5, according to the mode of connection of each described coil component in the claim 1～4, it is characterized in that,
Also possess the spiral preparatory process of preparing described spiral,
In described spiral preparatory process, prepare to cover the described spiral of lead with overlay film,
Described discharge operation comprises the pre-arcing operation of peeling off described overlay film and follows the main discharge operation that described bead formation operation is carried out.
6, according to the mode of connection of each described coil component in the claim 1～5, it is characterized in that,
In described terminal fittings preparatory process, prepare front end is processed as the described fuse piece of taper shape.
7, according to the mode of connection of each described coil component in the claim 2～6, it is characterized in that,
Described iron core has drum-shaped core and periphery iron core,
The mode of connection of described coil component also possesses the assembly process that described terminal fittings is assemblied in described iron core,
In described preparatory process unshakable in one's determination, described reel is around in described drum-shaped core, and described periphery iron core is disposed at the periphery of described drum-shaped core,
In described assembly process, described terminal fittings is assemblied in described periphery iron core.
8, the mode of connection of coil component according to claim 7 is characterized in that,
In described preparatory process unshakable in one's determination, on described periphery iron core, be formed with recess,
In described assembly process, described terminal fittings is to be disposed at described maintaining part form in the described recess and to be assemblied in described periphery iron core.
9, according to the mode of connection of each described coil component in the claim 2～8, it is characterized in that,
In described terminal fittings preparatory process, prepare to form described maintaining part tabular and make described fuse piece to the outstanding described terminal fittings of direction of the Surface Vertical of described maintaining part.
10, according to the mode of connection of each described coil component in the claim 1～9, it is characterized in that,
In described terminal fittings preparatory process, prepare to be processed to along with to cardinal extremity near and make and the described fuse piece of expanding gradually to the width of the direction quadrature of cardinal extremity from front end.
11, the mode of connection of coil component according to claim 1 is characterized in that,
In described terminal fittings preparatory process, prepare following terminal fittings,
Described terminal fittings has: the accessory pedestal part that forms the part of described terminal fittings main part; Outstanding and keep the maintaining part of the end of the described spiral of drawing from described iron core with the end of the described spiral of described accessory pedestal part clamping from described accessory pedestal part; From the outstanding described fuse piece of described accessory pedestal part.
12, the mode of connection of coil component according to claim 11 is characterized in that,
In described terminal fittings preparatory process, prepare to be processed into along with to cardinal extremity near and make and the described maintaining part of expanding gradually to the width of the direction quadrature of cardinal extremity from front end.
13, the mode of connection of coil component according to claim 1 is characterized in that,
In described terminal fittings preparatory process, prepare following terminal fittings,
Described terminal fittings has: form the part of described terminal fittings main part and be used to the two dichotomy portion of the end of the described spiral that the card extension draws from described iron core; From the outstanding described fuse piece of described pair of dichotomy portion.
14, according to the mode of connection of each described coil component in the claim 1～13, it is characterized in that,
In described terminal fittings preparatory process, the circumference of preparing described fuse piece has the described terminal fittings in bight.
15, the mode of connection of coil component according to claim 14 is characterized in that,
In described terminal fittings preparatory process, the edge portion of part of preparing to be extruded with the described terminal fittings main part of described fuse piece forms curvilinear described terminal fittings.
16, according to the mode of connection of claim 14 or 15 described coil components, it is characterized in that,
In described terminal fittings preparatory process, the bight of preparing described fuse piece only is provided with one described terminal fittings.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007336633 | 2007-12-27 | ||
| JP2007336633 | 2007-12-27 | ||
| JP2007-336633 | 2007-12-27 | ||
| JP2008323398A JP4924598B2 (en) | 2007-12-27 | 2008-12-19 | Coil connection method |
| JP2008323398 | 2008-12-19 | ||
| JP2008-323398 | 2008-12-19 |
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| CN101552106A true CN101552106A (en) | 2009-10-07 |
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| CN 200810184712 Active CN101552106B (en) | 2007-12-27 | 2008-12-29 | Wiring method of coil component |
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| JP (1) | JP4924598B2 (en) |
| CN (1) | CN101552106B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392827A (en) * | 2013-08-15 | 2015-03-04 | Tdk株式会社 | Coil part |
| CN110678945A (en) * | 2017-06-29 | 2020-01-10 | 松下知识产权经营株式会社 | Inductor component and method for manufacturing same |
| CN114242408A (en) * | 2022-01-07 | 2022-03-25 | 淮安顺络文盛电子有限公司 | Coil component |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5516357B2 (en) * | 2010-11-17 | 2014-06-11 | スミダコーポレーション株式会社 | Magnetic element |
| JP6604295B2 (en) * | 2016-09-30 | 2019-11-13 | 株式会社村田製作所 | Coil parts manufacturing method |
| JP6561957B2 (en) * | 2016-10-05 | 2019-08-21 | 株式会社村田製作所 | Coil parts manufacturing method |
| DE102017106970A1 (en) | 2017-03-31 | 2018-10-04 | Epcos Ag | Electrical component, component arrangement and method for producing a component arrangement |
| JP6978850B2 (en) * | 2017-04-21 | 2021-12-08 | 太陽誘電株式会社 | Coil parts and manufacturing method of coil parts |
| JP7045145B2 (en) * | 2017-06-30 | 2022-03-31 | 太陽誘電株式会社 | Coil parts and manufacturing method of coil parts |
| WO2024042948A1 (en) * | 2022-08-23 | 2024-02-29 | 株式会社村田製作所 | Coil component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000190068A (en) * | 1998-12-22 | 2000-07-11 | Tokyo Hi-Max Kk | Electronic parts jointing method |
| JP2002299115A (en) * | 2001-03-30 | 2002-10-11 | Calsonic Kansei Corp | Coil device and its manufacturing method |
| JP2004179551A (en) * | 2002-11-28 | 2004-06-24 | Tdk Corp | Coil apparatus and method of manufacturing the same |
| JP4808480B2 (en) * | 2005-11-29 | 2011-11-02 | Ｔｄｋ株式会社 | Coil component connecting device and connecting method |
| JP2007258201A (en) * | 2006-03-20 | 2007-10-04 | Tdk Corp | Coil component |
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2008
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392827A (en) * | 2013-08-15 | 2015-03-04 | Tdk株式会社 | Coil part |
| CN104392827B (en) * | 2013-08-15 | 2017-04-12 | Tdk株式会社 | Coil part |
| CN110678945A (en) * | 2017-06-29 | 2020-01-10 | 松下知识产权经营株式会社 | Inductor component and method for manufacturing same |
| US11482374B2 (en) | 2017-06-29 | 2022-10-25 | Panasonic Intellectual Property Management Co., Ltd. | Inductor component and method for manufacturing same |
| CN114242408A (en) * | 2022-01-07 | 2022-03-25 | 淮安顺络文盛电子有限公司 | Coil component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4924598B2 (en) | 2012-04-25 |
| JP2009177148A (en) | 2009-08-06 |
| CN101552106B (en) | 2013-03-20 |
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