CN206774350U - A kind of plastic packaging attachment inductor and electrical equipment - Google Patents

Abstract

The utility model provides a kind of plastic packaging attachment inductor and electrical equipment, is related to electronic device production and processing field.The plastic packaging that the utility model is obtained by above-mentioned design mounts inductor, and by improvement design, and simple processing, the inductor structure of acquisition consolidate, stable performance, convenient production；Using the electrical equipment of plastic packaging attachment inductor, performance is more firm, safer.

Description

A kind of plastic packaging attachment inductor and electrical equipment

Technical field

The utility model is related to electronic device production and processing field, in particular to a kind of plastic packaging mount inductor and Electrical equipment.

Background technology

The loop configuration of alloy magnetic powder core is applied more with E shapes structure at present, and wherein toroidal core has manufacturing process simple The characteristics of list, easy-formation, cost are low, Magnetic Shielding Effectiveness is good, but because its volume is larger, magnetic circuit is short, easy saturation, and be not easy around Line, it so largely have impact on its packing density in electronic circuit；Though E shape magnetic cores are simple in construction, easy-formation, because Section is that square structure is not suitable for thick line coiling, and Magnetic Shielding Effectiveness is poor.

Utility model content

The utility model provides a kind of plastic packaging attachment inductor, passes through optimizing structure design so that the performance of inductor Lifted.

The utility model also provides a kind of electrical equipment, and the electrical equipment mounts inductor, energy by using above-mentioned plastic packaging Stable operation.

What the utility model was realized in：

A kind of plastic packaging mounts inductor, including：

Core body, core body include bridge core and end, and end is connected with bridge core, and end set is leaded, bridge core and draw Line is connected by inductance coil；

Screen layer, screen layer parcel core body, screen layer are provided with perforate, and perforate coordinates with lead；

Shell, shell are provided with the accommodating chamber for accommodating core body and the through hole for exporting lead.

Further, in the utility model preferred embodiment, side of the end away from bridge core sets connecting hole, draws Line is arranged in connecting hole.

Further, in the utility model preferred embodiment, bridge core includes pars intermedia and connecting portion, connecting portion bag Two are included, two connecting portions are respectively arranged at the both ends of pars intermedia.

Further, in the utility model preferred embodiment, the cross-sectional width of each connecting portion is all higher than centre The cross-sectional width in portion.

Further, in the utility model preferred embodiment, the cross-sectional width of connecting portion is along close to pars intermedia Direction tapers into.

Further, in the utility model preferred embodiment, lead includes leading portion, stage casing and endpiece, leading portion and company Hole connection is connect, endpiece coordinates with through hole, stage casing connection leading portion and endpiece.

Further, in the utility model preferred embodiment, the cross section in stage casing is polygon, and polygon is three sides It is a kind of in shape, quadrangle, pentagon and hexagon.

Further, in the utility model preferred embodiment, inductance coil is connected with stage casing.

Further, in the utility model preferred embodiment, inductance coil spiral surrounding is in bridge core.

A kind of electrical equipment, electrical equipment include plastic packaging described above attachment inductor.

The beneficial effects of the utility model are：The plastic packaging that the utility model is obtained by above-mentioned design mounts inductor, leads to Improvement design is crossed, and simple processing, the inductor structure of acquisition consolidate, stable performance, convenient production；Mounted using the plastic packaging The electrical equipment of inductor, performance is more excellent, runs safer reliable.

Brief description of the drawings

, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work, Other related accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic diagram for the plastic packaging attachment inductor that the utility model embodiment 1 provides；

Fig. 2 is the schematic diagram for the core body that the utility model embodiment 1 provides；

Fig. 3 is the schematic diagram for the plastic packaging attachment inductor that the utility model embodiment 2 provides；

Fig. 4 is the schematic diagram for the core body that the utility model embodiment 2 provides.

Icon：100- plastic packagings mount inductor；200- plastic packagings mount inductor；110- core bodys；210- core bodys；111- bridge cores Portion；211- bridge cores；112- ends；212- ends；112a- sides；113- pars intermedias；114- connecting portions；115- connecting holes； 116- leads；116a- leading portions；116b- stage casings；116c- endpieces；117- inductance coils；120- screen layers；121- perforates；130- Shell；131- accommodating chambers；132- through holes.

Embodiment

To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Therefore, below It is new that the detailed description of embodiment of the present utility model to providing in the accompanying drawings is not intended to limit this claimed practicality The scope of type, but it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ability The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

In description of the present utility model, it is to be understood that term " vertical ", " level ", " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of Describe the utility model and simplify to describe, rather than instruction or imply signified equipment or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two More than, unless otherwise specifically defined.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands concrete meaning of the above-mentioned term in the utility model.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

Embodiment is referring to figs. 1 to shown in Fig. 2

Inductor is the element that electric energy can be converted into magnetic energy and stored, and structure is similar to transformer, but only One winding, there is certain inductance, only hinder the change of electric current.Inductor is typically by skeleton, winding, radome, package material The composition such as material, magnetic core or iron core.The addition of iron core or magnetic core can strengthen the inductance value of inductor, with can be reduced in the case of inductance value around The coiling number of turn of group, and then the volume of inductor is reduced to a certain extent.At present using more in inductor Magnetic core has FERRITE CORE and metal magnetic powder core.Metal magnetic powder core is because with saturation flux density height, being lost low, frequency of use Extensively, the features such as magnetic property is stably and controllability is high, and it is widely used in inductance element.Metal magnetic powder core mainly include ferrocart core, High magnetic flux powder core, iron silica flour core, iron Si-Al Magnetic Powder Core and FeNiCo magnetic core.Outside iron removaling powder core, other powder cores are typically collectively referred to as Alloy magnetic powder core.Alloy magnetic powder core is by the way that powder made of alloy soft magnetic material and insulation additives mixed compacting are formed A kind of compound soft magnetic material.Separated because ferromagnetic particle is small, and by non magnetic dielectric, therefore, alloy magnetic powder core resistance Much bigger than metal and its alloy of rate, eddy-current loss is small, suitable for upper frequency.Overcome ferrite Saturation magnetic sense intensity compared with The shortcomings that eddy-current loss is big under low and metal soft magnetic alloy high frequency, while the advantages of combine both to greatest extent, can apply It is difficult to meet desired field in conventional soft magnetic materials.

In face of electronic component is increasingly integrated, miniaturization, the development of encapsulation effect, to manufacture a kind of low resistance, low damage Consumption, high-frequency, high current, temperature stability are good, the inductor of strong antijamming capability, small volume, it is therefore desirable to prepare in performance It is excellent, loss is low, reliability is high, on the basis of the alloy magnetic powder core of wide frequency range, for simultaneously be avoided that annular powder core Volume is larger, magnetic saturation density is low, and the problem of Magnetic Shielding Effectiveness difference of E-type magnetic powder core etc., redesign can meet electronics member device Part small, high frequency, the inductor of high-power developing direction.

Thus in summary, the inductor core that alloy magnetic powder core is undoubtedly current function admirable, loss is low, stability is good The first choice of material.

Referring to Fig. 1 and Fig. 2, the utility model provides a kind of plastic packaging attachment inductor 100, including：Core body 110, screen layer 120 and shell 130.

Core body 110 includes bridge core 111 and end 112, and end 112 is connected with bridge core 111.Bridge core 111 and end 112 form core body 110, the shape such as waist drum shape of core body 110, and end 112 includes two, and two ends 112 are separately positioned on bridge The both ends of core 111, end 112 and bridge core 111 are integrally formed.

Core body 110 can be integrally formed that can also to be different parts be obtained by assembling；Can certainly be molded Cylinder on by cutting realize；Certainly, there is provided the structural stability of assembling is not as being integrally formed, and the method for cutting can wave Take many raw materials, and leftover bits and pieces can not recycle, and so be unfavorable for controlling and reducing cost.

Bridge core 111 includes pars intermedia 113 and connecting portion 114, and connecting portion 114 is also provided with two, two connecting portions 114 are arranged on the both ends of pars intermedia 113, and pars intermedia 113 and connecting portion 114 are also still integrally formed.A pair of two connecting portions 114 One is connected with end 112 so that pars intermedia 113, connecting portion 114 and end 112 form the core body 110 of an entirety.

In the present embodiment, 114 preferably circular structure of pars intermedia 113 and connecting portion, and along pars intermedia 113 and connecting portion The direction of 114 axles；Gradually increase from pars intermedia 113 to the diameter of a circle of connecting portion 114, untill with the contact surface of end 112. In terms of from the cross section that the connecting portion 114 of one end is formed through pars intermedia 113 to other end of connecting portion 114, outside bridge core 111 Profile generally forms a camber line structure.

Side 112a of the end 112 away from bridge core 111 sets connecting hole 115, and lead 116 is arranged in connecting hole 115.

End 112 sets leaded 116, and bridge core 111 and lead 116 are connected by inductance coil 117.

Inductance coil 117 is drawn from the lead 116 of one end, close to the side 112a of end 112 and the circumference of end 112 Face is transitioned into bridge core 111, and on the surface of bridge core 111 to other end spiral winding；Likewise, inductance coil 117 arrives Behind the border of bridge core 111, by way of the periphery and side 112a of other end of end 112 and by spiral winding It is connected on other end of lead 116.

Inductance coil 117 selects polyurethane enamelled wire, and enamel-covered wire is a principal item of winding wire, by conductor and insulation Two composition of layer, after the annealed softening of bare wire, then by repeatedly painting, baking forms.Polyurethane wire enamel is Bayer Bitterfeld GmbH Developed in nineteen thirty-seven, because it has a straight weldering property, high frequency tolerant performance and can dyeing property, therefore led in electronics, electrical equipment etc. It is widely used in domain.The temperature classification on improving polyurethane enamelled wire external at present does not influence its direct-welding property extremely again simultaneously Concern.

Inductance coil 117 avoids inductance coil 117 from directly being contacted with core body 110, by wrapping paint point by using enamel-covered wire Inductance coil 117 and core body 110 are separated, can accomplish to insulate but not adiabatic, can be very good to avoid inductance coil 117 and core body There is short trouble between coil turn and circle in interfering between 110.

Referring to Fig. 2, lead 116 includes leading portion 116a, stage casing 116b and endpiece 116c.

Leading portion 116a coordinates with connecting hole 115, is installed on connecting hole 115.Leading portion 116a can by bonding agent be bonded or The leading portion 116a of lead 116 is fixed in connecting hole 115 by the method for person's metal pulp welding.

In practice, bonding agent the reason such as electromagnetic field or the heating of core body 110, the gradual aging of meeting, causes to draw due to the time Line 116 connects loosely, and then has influence on overall performance, has influence on the bulk life time of plastic packaging attachment inductor 100.

And by way of welding, aging can be avoided, and the electromagnetism connection of plastic packaging attachment inductor 100 is not influenceed, make It is also relatively long with the life-span.

Stage casing 116b is the section of a polygon, and the section of polygon can be triangle, quadrangle, pentagon and six It is a kind of in the shape of side；The preferred stage casing 116b section for being shaped as a quadrangle in the present embodiment.Install lead 116 when Wait, the stage casing 116b of the lead 116 of both ends installation section can be the same, can also select different sections.

Because stage casing 116b is the position with the connection of inductance coil 117, so polygon is made in 116b selections in stage casing, it is convenient Inductance coil 117 is fixedly connected.

Screen layer 120 wraps up core body 110, and screen layer 120 is provided with perforate 121, and perforate 121 coordinates with lead 116.

Screen layer 120 is coated uniformly on core body 110 and inductance coil 117 from the mixing material of resin and curing agent Surface, a resin protective layer is formed after the surface cure of core body 110 and inductance coil 117, play the work of shielding and protection With.

Shell 130 is provided with the accommodating chamber 131 for accommodating core body 110 and the through hole 132 for exporting lead 116.

The endpiece 116c of through hole 132 and lead 116 coordinates；Lead 116 passes through through hole 132 and external connection.

Shell 130 selects dielectric resin material, plastic packaging is mounted to the main part whole wrapping and encapsulating of inductor 100, outside It is in rectangular parallelepiped structure to see neat.

Increase a plastic shell 130, on the one hand can protect the core body 110 of the plastic packaging attachment inductor 100 of inside, and It can play a part of being relatively fixed core body 110；On the other hand it is possible to prevente effectively from plastic packaging attachment inductor 100 in the application with week Enclose interfering between other electronic devices.

When in use, external circuit is connected by lead 116, realizes the power supply of plastic packaging attachment inductor 100, core body 110 connect, meanwhile, inductance coil 117 also connects circuit, produces inductance；The cambered design of bridge core 111, plastic packaging can make it that Mount inductor 100 and produce stable, larger inductance.Meanwhile screen layer 120 and shell 130 can preferably protect core body 110, avoid plastic packaging attachment inductor 100 from being interfered with other electronic devices, while also increase its mechanical strength, Jin Erti The Stability and dependability of inductor is risen.

The present embodiment additionally provides a kind of electrical equipment, and the electrical equipment is provided with above-mentioned plastic packaging attachment inductor 100.

Shown in the reference picture 3 of embodiment 2 and Fig. 4

The plastic packaging attachment inductor 200 that the utility model embodiment is provided, its realization principle and caused technique effect Essentially identical with embodiment 1, to briefly describe, the present embodiment does not refer to part, refers to corresponding contents in embodiment 1.

The plastic packaging obtained by above-mentioned design mounts inductor 100, can meet the use of daily life substantially, but in line with The objective of its function is further improved, designer has carried out further improvement to plastic packaging attachment inductor 100.

Referring to Fig. 3 and Fig. 4, core body 210 includes bridge core 211 and end 212, and end 212 is connected with bridge core 211.Bridge Core 211 and end 212 form core body 210, the shape such as dumbbell shaped of core body 210, and end 212 includes two, two ends 212 The both ends of bridge core 211 are separately positioned on, end 212 and bridge core 111 are integrally formed.

Bridge core 211 is cylindrical structural, and bridge core 211 is designed into cylindrical structural, facilitate inductance coil 117 around Line procedures.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former Within then, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of plastic packaging mounts inductor, it is characterised in that including：

Core body, the core body include bridge core and end, and the end is connected with the bridge core, and the end set, which has, draws Line, the bridge core are connected with the lead by inductance coil；

Screen layer, the screen layer wrap up the core body, and the screen layer is provided with perforate, and the perforate is matched somebody with somebody with the lead Close；

Shell, the shell are provided with the accommodating chamber for accommodating the core body and the through hole for exporting the lead.

2. plastic packaging according to claim 1 mounts inductor, it is characterised in that side of the end away from the bridge core Face sets connecting hole, and the lead is arranged in the connecting hole.

3. plastic packaging according to claim 1 mounts inductor, it is characterised in that the bridge core includes pars intermedia and two Connecting portion, two connecting portions are respectively arranged at the both ends of the pars intermedia.

4. plastic packaging according to claim 3 mounts inductor, it is characterised in that the cross-sectional width of each connecting portion It is all higher than the cross-sectional width of the pars intermedia.

5. plastic packaging according to claim 4 mounts inductor, it is characterised in that the cross-sectional width edge of the connecting portion is leaned on The direction of the nearly pars intermedia tapers into.

6. plastic packaging according to claim 2 mounts inductor, it is characterised in that the lead includes leading portion, stage casing and tail Section, the leading portion be connected with the connecting hole, the endpiece and through hole cooperation, the stage casing connection leading portion and described Endpiece.

7. plastic packaging according to claim 6 mounts inductor, it is characterised in that the cross section in the stage casing is polygon, The polygon is a kind of in triangle, quadrangle, pentagon and hexagon.

8. plastic packaging according to claim 6 mounts inductor, it is characterised in that the inductance coil connects with the stage casing Connect.

9. plastic packaging according to claim 8 mounts inductor, it is characterised in that the inductance coil spiral surrounding is in described Bridge core.

10. a kind of electrical equipment, it is characterised in that the electrical equipment includes the plastic packaging as described in claim any one of 1-9 Mount inductor.