CN201877237U

CN201877237U - Surface mount device (SMD) type inducer

Info

Publication number: CN201877237U
Application number: CN2010206021899U
Authority: CN
Inventors: 罗鹏程
Original assignee: MAGIC ELECTRONIC TECHNOLOGY (SHENZHEN) Co Ltd
Current assignee: CHONGQING MAGIC ELECTRONIC SCIENCE & TECHNOLOGY CO., LTD.
Priority date: 2010-11-11
Filing date: 2010-11-11
Publication date: 2011-06-22
Anticipated expiration: 2020-11-11

Abstract

The utility model discloses a surface mount device (SMD) type inducer, which comprises a conductor unit, an upper magnetic core and a lower magnetic core, wherein the conductor unit is bent and comprises a body and two groups of pins which are connected to the tail end of the body; a groove for accommodating the body is formed on the lower magnetic core; and the lower magnetic core for accommodating the body is combined with the upper magnetic core, so that the conductor unit is coated between the upper magnetic core and the lower magnetic core and the two groups of pins are exposed. Therefore, the SMD type inducer has the advantages that the manufacturing process is simplified and the production cost is lowered.

Description

SMD type inductor

Technical field

The utility model relates to a kind of SMD type inductor, is specifically related to a kind of SMD type inductor that need not bend the coil pin.

Background technology

Modern science and technology is maked rapid progress, thereby develops and many electronic products.These electronic products need many electronic component layouts on circuit board, and conventional practice is with Through-Hole Technology electronic component to be plugged on the circuit board.Yet this kind practice cost height, working (machining) efficiency is low and have impedance than problems such as height.

For microminiaturization and the compact trend of electronics information product that adapts to the IC manufacturing technology, the technology that electronic component is attached on the printed circuit board (PCB) is also become surface adhesive type (Surface Mount Technology) and is become surface adhering element (Surface Mount Device by plug-in type evolution; And SMD has characteristics such as miniaturization, Low ESR, life-span be long SMD).

Adopt the advantage of SMD can be summarized as following some: the surface adhesive type component size is little, is arranged at area shared on the circuit board with respect to the plug-in type element and also dwindles, thereby reduced the cost of producing circuit board.In addition, surface adhering technology rapid and convenient comparatively on electronic circuitry design, and can reduce circuit interfering with each other in running, its circuit running performance that also can be greatly improved is particularly for some microwave lines, high noisy, digital circuit and high frequency analog line etc.Moreover, the surface adhering technology on production line from place tin cream, putting engineering sequential such as element and welding can full-automatic operation.Therefore, on speed of production, reliability, accuracy and quality, all be greatly improved than conventional via plug-in mounting technology.

See also Figure 1A and Figure 1B, it is the exploded view and the constitutional diagram of existing SMD type inductance element 1 structure, in Figure 1A, center section part 110 with magnetic core 11 coats with spiral coil 12 earlier, then shown in Figure 1B, two winding line ends 121 of coil 12 are bent to the bottom 111 of magnetic core 11, and two winding line ends 121 are fixed in bottom 111, to become SMD type inductance element with scolding tin 13.

Yet SMD type inductance element also needs the terminals of coil end are bent with adhesion, are stable on the magnetic core except coil being fastened in magnetic core, therefore certainly will increase extra fabrication schedule when producing, and causes the increase of time or human cost.

In sum, how to avoid variety of problems above-mentioned in the prior art and propose a kind of SMD type inductor, become present urgent problem.

Summary of the invention

In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of SMD type inductor, can reduce the cost of manufacture of inductor.

In order to achieve the above object, the utility model has been taked following technical scheme:

A kind of SMD type inductor comprises conductor element, forms bending and comprises body and two group of pins that are connected this body tip; Last magnetic core has last magnetic core faying face; Following magnetic core, has following magnetic core faying face, be formed with the groove of ccontaining this body on this time magnetic core faying face, wherein, the following magnetic core that is equipped with this body combined with going up magnetic core in the mode of this time magnetic core faying face magnetic core faying face on this, was coated on this this body between the magnetic core and this time magnetic core and exposed this two group of pins.

In one embodiment, this body series forms U or ㄇ font.

In another embodiment, this conductor element system forms the Ω font.

From the above, the SMD type inductor that the utility model provides has solved in the prior art, with the terminals bending of the coil end of inductor and be welded in the program of magnetic core, and then reduces the cost of manufacture of SMD type inductor.

Description of drawings

Figure 1A makes the exploded view of structure for existing SMD type inductance element.

Figure 1B figure is the constitutional diagram that existing SMD type inductance element is made structure.

The exploded view of one specific embodiment of the SMD type inductor that Fig. 2 provides for the utility model embodiment.

A kind of constitutional diagram of Fig. 3 A for combining according to the described exploded view of Fig. 2.

Fig. 3 B another constitutional diagram for combining according to the described exploded view of Fig. 2.

Fig. 4 is the exploded view of another specific embodiment of the utility model SMD type inductor.

The constitutional diagram of Fig. 5 A for combining according to the described exploded view of Fig. 4.Fig. 5 B another constitutional diagram for combining according to the described exploded view of Fig. 4.

Embodiment

The utility model provides a kind of SMD type inductor, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, below with reference to accompanying drawing and give an actual example the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also Fig. 2, it is the exploded view of a specific embodiment of the utility model SMD type inductor 2, and SMD type inductor 2 comprises: conductor element 21 forms bending and comprises body 211 and two group of pins 212 that are connected in body 211 ends; Last magnetic core 22 has last magnetic core faying face 221; Following magnetic core 23, has following magnetic core faying face 231, and be formed with the groove 232 of ccontaining body 211 on the following magnetic core faying face 231, wherein, the following magnetic core 23 following magnetic core faying faces 231 that are equipped with body 211 combine with last magnetic core 22 towards the mode of last magnetic core faying face 221, and body 211 is coated between magnetic core 22 and the following magnetic core 23, and expose two group of pins 212.

Particularly, conductor element 21 is for passing to the coil of electric current, and it forms for many lead compactings.Particularly, the body 211 of conductor element 21 can be similar in appearance to ㄇ font (as shown in Figure 2) or U font (not providing diagram), and pin 212 is shaped in the end of ㄇ font or U font body 211, and conductor element 21 is similar in appearance to the Ω font in other words.

When assembling SMD type inductor 2, can reach between the magnetic core faying face 221 and/or between conductor element 21 and time magnetic core faying face 231 at conductor element 21 and be coated with solid, so that go up magnetic core 22, conductor element 21 and following magnetic core 23 mutual cementations, and expose two group of pins 212, as shown in Figure 3A.

In addition, in Fig. 3 A, last magnetic core 22 can cover the top of conductor element fully, and magnetic core 23 contracts in respect to last magnetic core 22 being down, so that two group of pins 212 protrude from down magnetic core 23.Certainly, the profile of last magnetic core 22 and following magnetic core 23 and the restriction that size is not subjected to Fig. 2 or Fig. 3 A.

Moreover, body 211 can be divided into transverse part 211a and be connected two groups of longitudinal part 211b of transverse part 211a end, in the embodiment shown in Fig. 3 B, be equipped with the following magnetic core 23 of body 211, when following magnetic core faying face 231 combined with last magnetic core 21 towards the mode of last magnetic core faying face 221, groove 232 can hold body 211 fully and only expose the side 211a1 of the transverse part 211a of body 211.

Fig. 4 is another specific embodiment of SMD type inductor 4 of the present utility model, and its structure exposes to SMD type inductor 4 as SMD type inductor 2, two group of pins 412 of Fig. 2, shown in Fig. 5 A.Its difference be in, two groups of longitudinal part 411b of the only ccontaining body 411 of groove 432 of following magnetic core 43 and not ccontaining transverse part 411a, thereby be equipped with the following magnetic core 43 of longitudinal part 411b, following magnetic core faying face 431 is on last magnetic core 42, the mode of magnetic core faying face 421 is with after last magnetic core 42 combines, make transverse part 411a unsettled on following magnetic core 43, shown in Fig. 5 B.

In sum,, can save the program of bending and solid welding pin, and then reduce to make and go up human cost and time cost by the enforcement of the utility model SMD type inductor.

Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.

Claims

1. a SMD type inductor is characterized in that, comprising:

Conductor element forms bending and comprises body and two group of pins that are connected this body tip;

Last magnetic core has last magnetic core faying face; And

Following magnetic core has following magnetic core faying face, is formed with the groove of ccontaining this body on this time magnetic core faying face.

2. SMD type inductor as claimed in claim 1, it is characterized in that, be equipped with faying face magnetic core composition surface on this of the following magnetic core of this body, and combine, and be coated on this this body between the magnetic core and this time magnetic core and expose this two group of pins with magnetic core on this.

3. SMD type inductor as claimed in claim 1 is characterized in that, this body is made up of transverse part and two groups of longitudinal parts being connected in this transverse part end.

4. SMD type inductor as claimed in claim 3, it is characterized in that, be equipped with faying face magnetic core faying face on this of the following magnetic core of this body, and combine with magnetic core on this, this body is coated on this between the magnetic core and this time magnetic core, exposes the side of this transverse part with respect to the pin of this two conductor.

5. SMD type inductor as claimed in claim 3 is characterized in that, the groove of this time magnetic core is two groups of longitudinal parts of ccontaining this body only, and magnetic core and this time magnetic core coat two groups of longitudinal parts of this body on this, and this transverse part is suspended on this time magnetic core.

6. SMD type inductor as claimed in claim 1 is characterized in that this body is U font or ㄇ font.

7. SMD type inductor as claimed in claim 1 is characterized in that this conductor element is the Ω font.

8. SMD type inductor as claimed in claim 1 is characterized in that, this conductor element and this are gone up the magnetic core faying face and maybe be coated with solid between this time magnetic core faying face, make magnetic core on this, conductor element and the mutual cementation of this time magnetic core.