CN1655298B - Panel mounting type coil parts and method for making same - Google Patents
Panel mounting type coil parts and method for making same Download PDFInfo
- Publication number
- CN1655298B CN1655298B CN 200510007355 CN200510007355A CN1655298B CN 1655298 B CN1655298 B CN 1655298B CN 200510007355 CN200510007355 CN 200510007355 CN 200510007355 A CN200510007355 A CN 200510007355A CN 1655298 B CN1655298 B CN 1655298B
- Authority
- CN
- China
- Prior art keywords
- metallic plate
- plate terminal
- flange
- panel mounting
- mounting type
- 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
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
To provide the surface-mounted coil component capable of improving the adhesive strength between a drum-shaped core and a metallic plate terminal with a simple structure, while suppressing the variation in coil characteristics of each product, and to provide its manufacturing method. The surface-mounted coil component 1 mainly includes a columnar barrel 3, the drum-shaped core 5 having a pair of flanges 2a and 2b provided at both ends of the barrel 3, a wire 4 wound around the barrel 3, a coating core 6 provided to surround the drum-shaped core 5 around its axis, and a pair of metallic plate terminals 7a and 7b for connecting a mounting surface glued to the flange 2b of the core 5 via an adhesive 12. Adhesive surfaces S<SB>1</SB>and S<SB>2</SB>between the terminals 7a and 7b and the flange 2b are respectively embossed. In addition, the adhesive 12 contains a granular filler 13.
Description
Technical field
The present invention relates to be installed in panel mounting type coil parts and manufacture method thereof on the loop substrate of e-machine.
Background technology
Generally, panel mounting type coil parts is bonded with the pair of metal plate terminal that is used for connection face that obtains from lead frame on the bottom surface of the drum type fuse of the coil of reeling.On the metallic plate terminal, be formed for making the good scolding tin coating of weldability of coil and loop substrate.But, when connecting coil and metallic plate terminal, flood, in reflow ovens, pass through the heat that then at this moment applies when maybe being installed in the panel mounting type coil parts of finishing on the loop substrate to soldering-tin layer, electrodeposited coating is dissolved or dissolve, the adhesive strength of drum type fuse and metallic plate terminal is reduced.Therefore, when will impact or vibration etc. was applied on the panel mounting type coil parts of finishing, drum fuse and metallic plate terminal departed from and come off.In recent years, in e-machines such as mobile phone, digital camera, hard disk unit, require to wait the high panel mounting type coil parts of reliability that impacts or vibrate to falling.
In order to address this problem, in following patent documentation 1, proposed on the bottom surface of drum type fuse, recess to be set, will after inserting this recess, the fixed part that forms on the metallic plate terminal and pawl utilize the fixing method of adhesives.
Patent documentation 1: the spy opens flat 9-148148 communique
Yet, utilize above-mentioned patent documentation 1 described method, because complex structure, method also bothers.In existing panel mounting type coil parts, generally during fabrication, utilize bonding agent that the drum type fuse is bonded on the lead frame (metallic plate terminal).Because like this, the length of short transverse is subjected to the thickness effect of bonding agent big, is easy to generate error (tolerance) between goods, may can not get uniform panel mounting type coil parts.Like this, the length of coil and the number of turns produce deviation between goods, and the dc resistance coil characteristics such as (Rdc) of each goods is kept necessarily.
Summary of the invention
Consider above-mentioned prior art problems and propose in the present invention, its objective is to provide a kind of deviation that can suppress the coil characteristics of each goods, can improve the panel mounting type coil parts and the manufacture method thereof of the adhesive strength of drum type fuse and metallic plate terminal with simple structure.
A kind of panel mounting type coil parts of the present invention is characterized by, and possesses: body and the drum type fuse that is located at the pair of flanges at these body two ends with column; Be wound on the coil on the body; By one in bonding agent and the above-mentioned flange bonding pair of metal plate terminal that is used for connection face, to carrying out embossing processing with the bonding surface of the flange of metallic plate terminal, bonding agent contains granular filler.
Adopt the present invention, because the bonding plane with the flange of metallic plate terminal is carried out embossing processing, so formation is concavo-convex on the surface of bonding plane.Like this, the adhesive strength by bonding metallic plate terminal of bonding agent and flange improves, and therefore, the adhesive strength of metallic plate terminal and drum type fuse improves.And owing to contain granular filler in the bonding agent, the interval of metallic plate terminal after bonding and flange keeps and the particle diameter length about equally of granular filler.Like this, owing to the error that can reduce between goods, therefore can suppress the deviation of the coil characteristics of each goods.
In this case, the number on the preferred above-mentioned granular filler per unit area, than by above-mentioned embossing processing with the bonding plane of the flange of metallic plate terminal on the recess that forms many.Therefore like this, because all granular fillers all enter in the recess that is processed to form by embossing, can prevent the metallic plate terminal after bonding and the interval state of affairs little of flange, so can reduce the error between goods more reliably than other goods.
In addition, with at least a portion of the periphery edge of the bonding plane of the metallic plate terminal of flange on form step difference.In this case, when pressing laminated metal sheet terminal and flange by bonding agent, the remainder of bonding agent extrudes towards the edge direction of flange, in the step difference part that savings is provided with on the flange perimeter edge part.Therefore, owing near the peripheral skirt of flange, form the thickness position bigger of bond layer than other parts.Can further improve adhesive strength.Here so-called " step difference " also comprises the cross section is circular-arc situation.
Preferably the periphery edge with the bonding surface of the metallic plate terminal of flange carries out chamfering.Like this, when pressing laminated metal sheet terminal and flange by bonding agent, the remainder of bonding agent extrudes towards the edge direction of flange, and savings is in the zone of being clamped by chamfered part and metallic plate terminal.Therefore, owing near the periphery edge of flange, form the thickness position bigger of bond layer than other parts.Can further improve adhesive strength.
Bonding agent preferably be coated in the form of a ring with the bonding surface of the metallic plate terminal of flange on.Like this, even flange also can prevent from not have the position of adhesive-applying to be positioned on the metal terminal under the situation that metallic plate terminal upper edge Zhou Fangxiang rotates, can make the bonding dosage that is configured between flange and the metallic plate terminal stable.Therefore, the adhesive strength of each goods is roughly kept necessarily, can be kept quality, be suitable for a large amount of productions simultaneously.In addition, by adhesive-applying in the form of a ring, can prevent the sunk situation of core of the bond layer that under the situation of coating comprehensively, produces, therefore, the coating amount of bonding agent does not have deviation, can become on flange with the state of homogeneous thickness adhesive-applying roughly.
In addition, the part at the edge of preferable alloy plate terminal is towards the installed surface warpage.Like this, utilize the edge of warpage, the height of the installed surface of predetermined distance drum type fuse accurately simultaneously, is placed on rear side with the bonding face of the flange of metallic plate terminal with the two ends of coil.
The manufacture method of panel mounting type coil parts of the present invention is characterized by, and panel mounting type coil parts possesses: body and the drum type fuse that is located at the pair of flanges at these body two ends with column; Be wound on the coil on the body; And with flange in a bonding pair of metal plate terminal that is used for connection face, described manufacture method comprises: the operation of (a) bonding plane with the flange of metallic plate terminal being carried out embossing processing; (b) preparation contains the operation of the bonding agent of granular filler; (c) operation by the bonding flange of bonding agent and metallic plate terminal.
Adopt the present invention, by with the bonding plane of the flange of metallic plate terminal on carry out embossing processing, can improve by the bonding metallic plate terminal of bonding agent and the adhesive strength of flange.Contain the bonding agent of granular filler by use, the metallic plate terminal after bonding and the interval of flange can be remained the roughly particle diameter length about equally of granular filler.Therefore, can realize reducing the error between goods, suppress the panel mounting type coil parts of the coil characteristics deviation of each goods.
In this case, the number on the preferred granular filler per unit area, than by embossing processing with the bonding plane of the flange of metallic plate terminal on the recess that forms many.Like this, because all granular fillers all enter in the recess that is processed to form by embossing, can prevent the metallic plate terminal after bonding and the interval state of affairs little of flange, so can reduce the error between goods more reliably than other goods.
In addition, preferably with at least a portion of the periphery edge of the bonding plane of the metallic plate terminal of flange on form step difference.When by bonding when press laminated metal sheet terminal and flange, the remainder of bonding agent extrudes towards the edge direction of flange, the step difference that savings is provided with on the flange perimeter edge partly in.Therefore, because the thickness of bond layer forms the position bigger than other parts near the periphery edge of flange, can further improve adhesive strength.
Preferably the periphery edge with the bonding plane of the above-mentioned metallic plate terminal of flange carries out chamfering.Like this, when by bonding when press laminated metal sheet terminal and flange, the remainder of bonding agent extrudes towards the edge direction of flange, puts aside in the zone of being clamped by chamfered part and metallic plate terminal.Therefore, because the thickness of bond layer forms the position bigger than other parts near the periphery edge of flange, therefore can further improve adhesive strength.
Preferably bonding agent is coated in the form of a ring on the bonding plane with the metallic plate terminal of flange.Like this, even flange also can prevent from not have the position of adhesive-applying to be positioned on the metal terminal under the situation that metallic plate terminal upper edge peripheral direction rotates, can make the bonding dosage that is configured between flange and the metallic plate terminal stable.Therefore, the adhesive strength of each goods is roughly kept necessarily, can be kept quality, be suitable for a large amount of productions simultaneously.In addition,, can prevent the sunk state of affairs of core of the bond layer that under the situation of coating comprehensively, produces, therefore, can become on flange with the state of homogeneous thickness adhesive-applying roughly by adhesive-applying in the form of a ring.
In addition, the part at the edge of preferable alloy plate terminal is in the operation of installed surface one side warpage.Like this, utilize the edge of warpage, the height of the installed surface of predetermined distance drum type fuse accurately, simultaneously, the two ends of coil are received the flange that is contained in the metallic plate terminal the rear side of bonding face.
Adopt the present invention, in panel mounting type coil parts and manufacture method thereof, to with the metallic plate terminal in the bonding face of the flange of drum type fuse on carry out embossing processing, simultaneously, owing to use the bonding agent that contains granular filler, bonded metal plate terminal and above-mentioned flange, therefore available simple structure improves the adhesive strength of drum type fuse and metallic plate terminal, can suppress the deviation of the coil characteristics of each goods.
Description of drawings
Fig. 1 removes the stereogram of state of outer cored of panel mounting type coil parts of the present invention for expression;
Fig. 2 removes the stereogram of state of outer cored of panel mounting type coil parts shown in Figure 1 for expression;
Fig. 3 is the perspective view of the adhering state of expression drum type fuse and metallic plate terminal;
Fig. 4 is the sectional view of the IV-IV line of Fig. 3;
Fig. 5 (a) is the plane graph of recess, and Fig. 5 (b) is the sectional view along the V-V line of recess;
Fig. 6 is the enlarged drawing of the regional A in the presentation graphs 4;
Fig. 7 is the figure of the manufacturing process of the panel mounting type coil parts of expression present embodiment;
Fig. 8 is the figure of the manufacturing process of the panel mounting type coil parts of the present embodiment of expression continuation Fig. 7;
Fig. 9 is the figure of the manufacturing process of the panel mounting type coil parts of the present embodiment of expression continuation Fig. 8;
Figure 10 is the figure of the manufacturing process of the panel mounting type coil parts of the present embodiment of expression continuation Fig. 9;
Figure 11 is the figure of the face that is coated with bonding agent of expression flange;
Figure 12 is the figure of expression with the operation of adhesive applicating on flange;
Figure 13 is the figure of comparative example 1 of the present invention;
Figure 14 is the figure of comparative example 1 of the present invention;
Figure 15 is the figure of embodiments of the invention 1;
Figure 16 is the figure of embodiments of the invention 1;
Figure 17 is the figure of embodiments of the invention 2;
Figure 18 is the figure of embodiments of the invention 2;
Figure 19 is the figure of embodiments of the invention 3;
Figure 20 is the figure of embodiments of the invention 3;
Symbol description: 1-panel mounting type coil parts; 2a, the 2b-flange; The 3-body; The 4-coil; 5-drum type fuse; Outer cored of 6-; 7a, 7b-metallic plate terminal; The 10-recess; The 11-step difference; The 12-bonding agent; The granular filler of 13-; 17a, the 17b-edge; The 20-lead frame; 20a, 20b-lead terminal (metallic plate terminal); The 31-flange; The 32-bonding agent; 33-metallic plate terminal; The 41-flange; The 42-bonding agent; 43-metallic plate terminal; The 44-step difference; The 51-flange; The 52-bonding agent; 53-metallic plate terminal; The 53-flange; The 55-recess; The 65-recess; The 66-step difference.
Embodiment
Below, with reference to accompanying drawing, explain preferred implementation of the present invention.In the description of the drawings, identical or suitable part omits repeat specification with identical symbolic representation.
Fig. 1 is the stereogram of the panel mounting type coil parts 1 of expression present embodiment.Fig. 2 removes the stereogram of state of outer cored 6 of panel mounting type coil parts shown in Figure 11 for expression.Panel mounting type coil parts 1 is owing to be to utilize backflow scolding tin etc. and face is installed on the printed substrate etc., so can use in e-machines such as mobile phone, digital camera, hard disk unit.The uses such as choking-winding part that can also use with coil component or the DCDC transducer of SMD (Surface Mount Device) as power supply.
Panel mounting type coil parts 1 mainly has: the body 3 of column is (referring to Fig. 3, Fig. 4), pair of flanges 2a with the two ends that are located at this body 3, the drum type fuse 5 of 2b, be wound on the coil 4 on the body 3, outer cored 6 that surrounding drum type fuse 5 and be provided with around axle is bonded in the pair of metal plate terminal 7a that is used for connection face on the flange 2b of drum type fuse 5,7b.
Fig. 3 is expression drum type fuse 5 and metallic plate terminal 7a, the perspective view of the state that 7b is bonding.Fig. 4 is the sectional view of the IV-IV line of Fig. 3.At Fig. 3, among Fig. 4, consider and see drum type fuse 5 and metallic plate end 7a easily that 7b has omitted coil 4.
As shown in Figure 3, with metallic plate terminal 7a, the face S that the flange 2b of 7b is bonding
1, S
2On, the disposition interval with regulation forms a plurality of recesses 10 respectively.
Fig. 5 (a) is the plane graph of recess 10, and Fig. 5 (b) is the sectional view of the V-V line of recess 10.By at metallic plate terminal 7a, carry out embossing processing on the surface of 7b, for example recess 10 is made quadrangle cone shape as shown in Figure 5.In this case, recess 10 forms the square of each limit 0.04mm, and the degree of depth is about 0.02mm, and disposition interval is 0.2mm.And with respect to metallic plate terminal 7a, the density on 7b surface (embossing processing density) is 3～5%.In addition, the shape of recess 10 is not limited to quadrangle cone shape, and other cone shape, hemisphere roughly or rectangle etc. such as circular cone or pyrometric cone also can.
Again referring to Fig. 3, Fig. 4, flange 2b with metallic plate terminal 7a, the face S of 7b contact
3Full week of periphery edge on step difference 11 is set.The height of this step difference 11 is 0.05mm, and width is about 0.10mm.Utilize this step difference 11,, the zone that the distance of 7b is bigger than other positions is set and metallic plate terminal 7a between the 7b at flange 2b and metallic plate terminal 7a.And for example Fig. 3 is shown in Figure 4, in the present embodiment, and at the face S of flange 2a
4Periphery edge on step difference 11 is set equally.Like this, when with drum type fuse 5 and metallic plate terminal 7a, when 7b is bonding,, under the bonding situation of 7b, the zone that the distance of 7b is bigger than other positions can be set also and metallic plate terminal 7a at any flange and metallic plate terminal 7a.
Fig. 6 is the enlarged drawing of regional A in the presentation graphs 4.Flange 2b is bonding with metallic plate terminal 7a (7b) by bonding agent 12.At this moment, bonding agent 12 also is configured in step difference 11 and metallic plate terminal 7a, on the zone between the 7b (referring to the C of oblique line portion of Fig. 3).Bonding agent 12 as main component, also contains calcium carbonate (CaCO with epoxy resin
3) or the porose pearl equigranular of glass filler 13.In addition, also contain curing agents such as dicyandiamide.
The particle diameter of granular filler 13 for example is about 20 μ m, is included in the bonding agent 12, makes the number of per unit area compare at metallic plate terminal 7a the recess more than 10 of the last formation of 7b.Like this, not all granular filler 13 all embeds in the recess 10, makes flange 2b and metallic plate terminal 7a, and the distance of 7b often remains the particle diameter of granular filler 13.Therefore, can prevent error between goods.
Secondly, with reference to Fig. 7～Figure 12, the manufacture method of the panel mounting type coil parts 1 of present embodiment is described.
At first, prepare pair of lead wires terminal 20a, 20b is provided with a plurality of lead frames 20 integratedly. Lead terminal 20a, 20b and above-mentioned metallic plate terminal 7a, 7b is suitable.Copper alloys such as lead frame 20 usefulness phosphor bronzes are made.
At the lead terminal 20a of lead frame 20, the enterprising line bend processing of 20b is pre-formed the cross section that is roughly the U font, more respectively with edge 17a, and 17a and 17b, 17b is to the installed surface warpage.In addition, in advance to lead terminal 20a, the flange 2b of 20b carries out on bonding surface embossing processing, forms above-mentioned a plurality of recess 10.
And for example shown in Fig. 7 (a), utilize bonding agent 12, with the flange 2b and the lead terminal 20a of drum type fuse 5, the face of the opposite side of the installed surface of 20b is bonding.At this moment, as shown in figure 11, bonding agent 12 (oblique line part) is coated on the flange 2b of drum type fuse 5 in the form of a ring.The curing condition of bonding agent is, is 30～60 minutes in 150～160 ℃ of following times of temperature.In bonding agent 12,, also contain calcium carbonate (CaCO in advance with curing agent
3) equigranular filler 13.Granular filler 13 wishes that its average grain diameter is 15～25 μ m, at recess 10 is the square of each limit 0.04mm, and the degree of depth is about 0.02mm, and disposition interval is under the situation of 0.2mm, average grain diameter is 20 μ m, and the amount that occupies in bonding agent 12 for example is 47 weight %.
Utilization is bonded in lead terminal 20a with flange 2b, pushing when 20b is last, and bonding agent 12 is elongated by the direction of arrow in Figure 11.At this moment, as shown in Figure 6, be pressed out to the part of the bonding agent 12 at flange 2b edge, in the step difference 11 that savings forms on periphery edge.Like this, the thickness of bond layer increases, lead terminal 20a, and the adhesive strength of 20b and flange 2b improves several times.
Shown in Figure 12 (a), utilize the plate-making (Tetoron テ ト ロ Application) 24 of the mesh 23 that ring-type is installed, bonding agent 12 is coated on the flange 2b.The hole opening size of mesh 23 for example is about 80 μ m.Configuration drum type fuse 5 below plate-making 24, the position configuration bonding agent 12 beyond the mesh 23 of plate-making 24.Utilize sliding stand 25 that bonding agent 12 is slided and move, on mesh 23, pass through.Like this, shown in Figure 12 (a), bonding agent 12 falls downwards by mesh 23, is coated in the face S of flange 2b in the form of a ring
3On.The bed thickness of bonding agent 12 at this moment is suitable with the thickness of plate-making 24, is about 25 μ m.
Like this, by adhesive-applying 12 in the form of a ring, even because the vibration during conveyance or shake and make drum type fuse 5 under the situation that the Zhou Fangxiang of flange 2b rotates also can prevent from not have the part of adhesive-applying 12 to be positioned at metallic plate terminal 7a, the state of affairs on the 7b takes place.Because like this, can make to be configured in flange 2b and metallic plate terminal 7a, the amount of the bonding agent 12 between the 7b is stable.In addition, when utilizing meshes such as circle, be coated in the surperficial S of flange 2b all sidedly
3When last, shown in Figure 12 (c), there was core recessed, the uneven worry of the bed thickness of bonding agent 12.By using the mesh 23 of ring-type, shown in Figure 12 (d), bed thickness is roughly even, can suppress the deviation of the coating amount of bonding agent 12.
Secondly, shown in Fig. 8 (a), after utilizing reel winder 21 coil 4 to be wound on the body 3 of drum type fuse 5, and for example shown in Fig. 8 (b), with the terminal 4a of a pair of coil 4,4b draws and is back to each lead terminal 20a, and the rear side of 20b is also cut off.
Secondly, shown in Fig. 8 (c), carry out unleaded scolding tin 22 is immersed (immersion) lead terminal 20a, the rear side of 20b (side opposite) welding with drum core 5, with lead terminal 20a, the terminal 4a of 20b and coil 4,4b connect (electric, mechanical type connects) respectively.
Then, shown in Fig. 9 (a), at lead terminal 20a, the cardinal extremity of 20b is partly gone up the V cut that (at the boundary member that has or not Pb-free solder 22) forms the V-shape groove.And for example shown in Fig. 9 (b), arrange a plurality of outer cored 6 by the arrangement pitches identical with drum type fuse 5.Adhesive-applying 23 on four of cored 6 angles outside each.Though this bonding agent 23 is to be used for and lead terminal 20a, 20b is bonding, in order to reduce the error of the difference in height etc. between the goods, can use the bonding agent identical with above-mentioned bonding agent 12.
In addition, shown in Fig. 9 (c), after outer cored 6 that assembles feasible arrangement is installed on the drum type fuse 5 respectively, make bonding agent 23 sclerosis, with outer cored 6 and lead terminal 20a, 20b is bonding.Then, behind the top coating ferrite powder of cored 6 and drum type fuse 5, on this surface, stamp (referring to Figure 10 (a)) such as inductance value, polarity demonstrations outside.And for example shown in Figure 10 (b), at V cutting processing position, by cutting off lead terminal 20a, 20b can obtain a plurality of panel mounting type coil parts 1 as shown in Figure 1.
The panel mounting type coil parts 1 of above present embodiment, with metallic plate terminal 7a, the face S that the flange 2b of 7b is bonding
3The last convex-concave pattern that produces by embossing processing that forms.Because like this, by bonding agent 12, can improve bonded metal plate terminal 7a, the adhesive strength when 7b and flange 2b.In addition, owing to contain granular filler 13 in the bonding agent 12, therefore, metallic plate terminal 7a, the interval after 7b and flange 2b are bonding remains the particle diameter of granular filler 13.Like this, owing to the error that has reduced between the goods, therefore can suppress the deviation of the coil characteristics of each goods.Granular filler 13 also has the function of the viscosity adjustment of bonding agent 12.
In addition, be positioned at metallic plate terminal 7a, a pair of edge 17a at the two ends of 7b, 17a and 17b, 17b is warpage respectively, makes metallic plate terminal 7a, and the cross section of 7b becomes U font roughly.Because like this, can keep the height of drum type fuse 5 apart from installed surface accurately, simultaneously, can utilize to be easy to operation and simple structure, with the terminal 4a of coil 4,4b receives and is contained in metallic plate terminal 7a, the rear side of 7b.
In addition, adopt panel mounting type coil parts 1 of the present invention, as the terminal 4a with coil 4,4b draws and is back to metallic plate terminal 7a, during the rear side of 7b, the length of coil 4 is controlled definitely, can stably carry out the management of its length.As mentioned above, contain granular filler 13 in the bonding agent 12 by making, can be with the metallic plate terminal 7a after bonding, the interval of 7b and flange 2b, promptly the interval of drum type fuse 5 and installed surface remains necessarily.In coil 4 of the present invention, in any panel mounting type coil parts 1 that on lead frame 20, forms, all use roughly the same length (for example unification is 10.028mm).Therefore, be controlled to be necessarily, stably carry out the length management, can make the resistance components of each panel mounting type coil parts 1 roughly all identical by length with coil 4.Therefore, can realize the very little panel mounting type coil parts 1 of error (tolerance) between the goods.
More than, describe preferred implementation of the present invention in detail, but the invention is not restricted to above-mentioned execution mode.For example, in the above-described embodiment, with the metallic plate terminal 7a of flange 2b, the face S of 7b contact
3Periphery edge go up to form step difference 11 full week, at surperficial S
3The part of periphery edge on form step difference 11 and also can.
In addition, with surperficial S
3The structure of periphery edge chamfering also can.Like this, same with the situation that forms step difference 11, as metallic plate terminal 7a, when 7b and flange 2b push mutually by bonding agent 12, the remainder of bonding agent 12 extrudes towards the edge direction of flange 2b, and savings is at the part and the metallic plate terminal 7a of chamfering, in the zone that 7b clamps.Because the thickness that forms bond layer than near the big part in other positions the periphery edge of flange 2b, therefore can further improve metallic plate terminal 7a, the adhesive strength of 7b and flange 2b.
(embodiment 1)
Below, with reference to Figure 13～Figure 20, enumerate the content that embodiment and comparative example explain panel mounting type coil parts of the present invention again, but the invention is not restricted to these embodiment.Adhesive strength shown below is not by will be not being fixed on the pedestal with the bonding flange of metallic plate terminal, under this state, to be added in the tension load of pedestal detaching direction on the end with the bonding flange of metallic plate terminal, the load when peeling off by measuring metallic plate terminal and flange decides.
The various sizes of the embodiment shown below and the panel mounting type coil parts of comparative example are as follows: in cored, longitudinal length is 4.00mm outside, and lateral length is 4.00mm, and highly (thickness) is 1.80mm; In the drum type fuse, the internal diameter of discoideus flange is 2.80mm, and thickness is 0.35mm, and the internal diameter of cylindrical body is 1.50mm, and direction of principal axis length is 1.50mm; In the metallic plate terminal, thickness is 0.30mm.In addition, in bonding agent, contain granular filler, see easily and omit among the figure.
(comparative example 1)
Figure 13 is the part enlarged drawing of a part of the panel mounting type coil parts of expression comparative example 1, and Figure 14 is the figure of the relation of the bonding agent thickness of expression panel mounting type coil parts shown in Figure 13 and adhesive strength.
In this comparative example 1, use the panel mounting type coil parts that on the bonding plane of metallic plate terminal 33 shown in Figure 13 and flange 31, does not carry out embossing processing, research changes the bed thickness L of bonding agent 32
1The variation of the adhesive strength (gf) when (μ m).
The result who measures as shown in figure 14, along with the bed thickness L of bonding agent
1Increase, adhesive strength increases, but works as the bed thickness L of bonding agent
1When surpassing 60 μ m, recruitment reduces, and passes towards the adhesive strength of about 300 (gf).Therefore, with the bed thickness L of bonding agent
1It is optimum to be set at 60～80 μ m.
(embodiment 1)
Figure 15 is the part enlarged drawing of a part of the panel mounting type coil parts of expression embodiment 1, and Figure 16 is the figure of the relation of the step difference of expression panel mounting type coil parts shown in Figure 15 and adhesive strength.
In present embodiment 1, use the panel mounting type coil parts that on the circumference of flange shown in Figure 15 41, forms step difference 44, be determined at change step difference width D
1The variation of the adhesive strength in the time of (mm) (gf).In addition, even in present embodiment 1, on the bonding plane of metallic plate terminal 43 and flange 41, do not carry out embossing processing yet.In addition, the bed thickness L of bonding agent 42
2 Be 20 μ m.
Measurement result as shown in figure 16, along with the step difference width D
1Increase, adhesive strength increases, but when the step difference width D
1When being 0.10～0.15mm left and right sides, recruitment reduces, and passes to the adhesive strength of about 300～320 (gf).
(embodiment 2)
Figure 17 is the part enlarged drawing of the part of the panel mounting type coil parts of expression embodiment 2, Figure 18 is illustrated in the panel mounting type coil parts shown in Figure 17, the figure of the relation of embossing processing density (with respect to the density of the recess 55 of metallic plate terminal surfaces) and adhesive strength.
As shown in figure 17, in present embodiment 2, use the panel mounting type coil parts that on the bonding plane of metallic plate terminal 53 and flange 51, carries out embossing processing (forming recess 55), be determined at the variation of the adhesive strength (gf) when changing embossing processing density (%).In addition, in present embodiment 2, on the circumference of flange 51, do not form step difference.And, the bed thickness L of bonding agent 52
3 Be 20 μ m.
Measurement result as shown in figure 18, along with embossing processing density (%) improves, adhesive strength increases.When embossing processing density (%) was 4%, adhesive strength was near 300 (gf), and when 6% when following, adhesive strength can reach 310 (gf) above 300 (gf) at 8% o'clock.
(embodiment 3)
Figure 19 forms the part enlarged drawing of a part of the panel mounting type coil parts of the recess 65 that step difference 66 and embossing processing produces for expression, Figure 20 for the panel mounting type coil parts of the recess that will not form step difference and embossing processing and produce, do not form the recess of embossing processing but form the panel mounting type coil parts of step difference that the step difference width is 0.15mm and figure that the adhesive strength of panel mounting type coil parts shown in Figure 19 compares.
As shown in figure 20, in forming both panel mounting type coil parts of recess that step difference 66 and embossing processing produces 65, adhesive strength is than high about 80 (gf) of the part that only forms step difference, and under the situation that the part with the recess that does not form step difference and embossing processing generation compares, can obtain the adhesive strength more than 2 times.
Claims (12)
1. a panel mounting type coil parts is characterized by, and possesses:
Body and the drum type fuse that is located at the pair of flanges at these body two ends with column;
Be wound on the coil on the described body;
By one in bonding agent and described flange pair of metal plate terminal bonding, that be used for connection face,
On described metallic plate terminal and bonding plane described flange, carry out embossing processing,
Described bonding agent contains granular filler,
Number on the described granular filler per unit area is more than the recess that forms on described metallic plate terminal and bonding plane described flange by described embossing processing.
2. panel mounting type coil parts as claimed in claim 1 is characterized by, and forms step difference at least a portion of the periphery edge of described flange and bonding plane described metallic plate terminal.
3. panel mounting type coil parts as claimed in claim 1 is characterized by, the periphery edge chamfering of described flange and bonding plane described metallic plate terminal.
4. as each described panel mounting type coil parts in the claim 1～3, it is characterized by, described bonding agent is coated on described flange and the bonding plane described metallic plate terminal in the form of a ring.
5. as each described panel mounting type coil parts in the claim 1～3, it is characterized by, the part at the edge of described metallic plate terminal in the installed surface side by warpage.
6. panel mounting type coil parts as claimed in claim 4 is characterized by, the part at the edge of described metallic plate terminal in the installed surface side by warpage.
7. the manufacture method of a panel mounting type coil parts is characterized by, and described panel mounting type coil parts possesses:
Body and the drum type fuse that is located at the pair of flanges at these body two ends with column;
Be wound on the coil on the described body;
With a pair of metal plate terminal bonding, that be used for connection face in the described flange,
Described manufacture method comprises:
(a) on described metallic plate terminal and bonding plane described flange, carry out the operation of embossing processing;
(b) preparation contains the operation of the bonding agent of granular filler;
(c) by described bonding agent, the operation of bonding described flange and described metallic plate terminal,
Number on the described granular filler per unit area is more than the recess that forms on the metallic plate terminal and bonding plane described flange by described embossing processing.
8. the manufacture method of panel mounting type coil parts as claimed in claim 7 is characterized by, and forms step difference at least a portion of the periphery edge of described flange and bonding plane described metallic plate terminal.
9. the manufacture method of panel mounting type coil parts as claimed in claim 7 is characterized by, the periphery edge chamfering of described flange and bonding plane described metallic plate terminal.
10. as the manufacture method of each described panel mounting type coil parts in the claim 7～9, it is characterized by, described bonding agent is coated on described flange and the bonding plane described metallic plate terminal in the form of a ring.
11. the manufacture method as each described panel mounting type coil parts in the claim 7～9 is characterized by, and comprises the part at the edge of the described metallic plate terminal operation at installed surface side warpage.
12. the manufacture method of panel mounting type coil parts as claimed in claim 10 is characterized by, and comprises the part at the edge of the described metallic plate terminal operation at installed surface side warpage.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004034114 | 2004-02-10 | ||
| JP2004-034114 | 2004-02-10 | ||
| JP2004034114A JP3947522B2 (en) | 2004-02-10 | 2004-02-10 | Surface mount type coil component and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1655298A CN1655298A (en) | 2005-08-17 |
| CN1655298B true CN1655298B (en) | 2010-05-26 |
Family
ID=34908331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510007355 Active CN1655298B (en) | 2004-02-10 | 2005-02-04 | Panel mounting type coil parts and method for making same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3947522B2 (en) |
| CN (1) | CN1655298B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4857760B2 (en) * | 2005-12-22 | 2012-01-18 | Ｔｄｋ株式会社 | Core and inductance element |
| WO2009011217A1 (en) * | 2007-07-19 | 2009-01-22 | Sumida Corporation | Surface mounting component |
| US7609140B2 (en) | 2008-01-18 | 2009-10-27 | Toko, Inc. | Molded body |
| JP5232594B2 (en) * | 2008-01-18 | 2013-07-10 | 東光株式会社 | Molded body |
| JP2009295774A (en) * | 2008-06-05 | 2009-12-17 | Koa Corp | Chip inductor |
| DE112009001388T5 (en) * | 2008-06-05 | 2011-04-28 | Koa Corp., Ina-shi | Chip induction coil and manufacturing method therefor |
| JP5369293B2 (en) * | 2008-09-24 | 2013-12-18 | コーア株式会社 | Chip inductor and manufacturing method thereof |
| JP5369294B2 (en) * | 2008-09-24 | 2013-12-18 | コーア株式会社 | Chip inductor and manufacturing method thereof |
| JP5257849B2 (en) * | 2009-06-24 | 2013-08-07 | Ｔｄｋ株式会社 | Resin-sealed coil component and method for manufacturing resin-sealed coil component |
| JP6965848B2 (en) * | 2018-08-25 | 2021-11-10 | 株式会社村田製作所 | Coil parts |
| JP7218831B2 (en) * | 2019-02-07 | 2023-02-07 | 株式会社村田製作所 | coil parts |
| JP7103254B2 (en) * | 2019-02-07 | 2022-07-20 | 株式会社村田製作所 | Coil parts |
| WO2021057566A1 (en) * | 2019-09-24 | 2021-04-01 | 苏州欧普照明有限公司 | Inductive framework, inductive device, and lamp |
-
2004
- 2004-02-10 JP JP2004034114A patent/JP3947522B2/en not_active Expired - Lifetime
-
2005
- 2005-02-04 CN CN 200510007355 patent/CN1655298B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| JP平1-199413A 1989.08.10 |
| JP特开2001-167942A 2001.06.22 |
| JP特开平6-290948A 1994.10.18 |
| JP特开平8-273947A 1996.10.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005228827A (en) | 2005-08-25 |
| CN1655298A (en) | 2005-08-17 |
| JP3947522B2 (en) | 2007-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1655298B (en) | Panel mounting type coil parts and method for making same | |
| US9147514B2 (en) | Wire-wound inductor | |
| JP5084408B2 (en) | Wire wound electronic components | |
| JP2009010345A (en) | Inductance element | |
| JP2018174219A (en) | Common mode choke coil and manufacturing method thereof, and circuit board | |
| WO2010125809A1 (en) | Process for production of circuit board | |
| JP2008306017A (en) | Inductor and its manufacturing method | |
| EP2665070B1 (en) | Surface mount inductor | |
| CN104700991A (en) | Inductance element and method for manufacturing inductance element | |
| US10770215B2 (en) | Electronic component, diaphragm, electronic device, and electronic component manufacturing method | |
| JP6390825B1 (en) | Mounting board | |
| JP6029819B2 (en) | Electronic component and manufacturing method thereof | |
| JP6455561B2 (en) | Electronic components | |
| JP2004214371A (en) | Surface-mounting coil component and its manufacturing method | |
| JP2014179824A (en) | Mounting method of patch antenna | |
| JP2005217280A (en) | Ferrite core, surface-mounted coil component using same, and its manufacturing method | |
| JP6460211B2 (en) | Coil component and manufacturing method thereof | |
| JP2008270309A (en) | Coil winding nozzle and process for manufacturing small-sized coil using coil winding nozzle | |
| JPWO2009011217A1 (en) | Surface mount parts | |
| US11923118B2 (en) | Coil component and method of manufacturing coil component | |
| JP3711920B2 (en) | Method for manufacturing choke coil | |
| JP2004006629A (en) | Surface mount coil component and its manufacturing process | |
| JPH0746659B2 (en) | Chip inductor | |
| JP3051660B2 (en) | High frequency coil and method of manufacturing the same | |
| JP2011258752A (en) | Winding type electronic component |
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 |