CN2733548Y - Miniaturized SMD-type high-current inductor - Google Patents

Abstract

The utility model discloses a miniaturized SMD-type high-current inductor, comprising an iron core, a coil curl and one or more than one clip; wherein, the iron core is made of insulation materials and is provided with a coil curl, and the iron core is an integral form pressure cast by a mould, holders are concavely arranged on inward any plane and the opposite plane of the iron core, and the acute angle formed by any contiguous planes and the opposite acute angle are cut into obtuse angle; the coil curl is wound outward at least one circle by enameled wire in the manner of concentric circle, the height can be reduced and the bulk volume of the inducer can be decreased by the method of wrapping the inner circle with the outer circle, and both ends of the coil curl are provided with a first end foot and a second end foot which are correspondingly naked to the obtuse angle; the clip is glued with the holder, a raised line is extended outward from one end of the chip, the obtuse angle and the two end feet are separately fixedly welded together, and the component can be welded on the circuit board flatly, which saves the man-hours of manual shearing. The utility model overcomes the defects of space limitation and man-hour consumption and achieves the effects of procedure saving as well as steady and flat weld.

Description

The SMD type high-current inductor of miniaturization

Technical field

The utility model relates to inductor, refers to especially a kind ofly can effectively reduce production costs and shorten assembling man-hour and for the firm smooth SMD type high-current inductor that is welded in the miniaturization on the circuit board.

Background technology

With known inductor shown in Figure 11 is example, and it is made up of a flat wire 11 and an iron core 12; Wherein, flat wire 11 is to form more than vertical coiling storehouse one circle; The two ends of flat wire 11 outwards enlarge extension and are provided with an appearance sheet 13, and expose to the outside on iron core 12 wantonly two relative planes.Known inductor 1 utilizes flat wire 11 forming more than the minimum circle of vertical coiling storehouse, and this way is because the restriction on the height, have can't miniaturization shortcoming.And for example shown in Figure 2, guide card 13 is used as pin, directly bending is welded on the circuit board downwards, but in the bending process, easily damage inductor 1 because of the application of force is improper, bending action is that manual type is implemented in addition, can't effectively control product quality (smooth) in the inductor bottom, and the angle of bending is also because of the different differences to some extent of technical staff, cause guide card 13 to produce elasticity, when advancing the welding of tin stove, also can at the circuit board superior displacement, cause the finished product fraction defective to improve because elasticity causes rolling, and comparatively loaded down with trivial details time-consuming on operation.Therefore, known inductor 1 can't reach the standard that requires now can't the excessive spatial limitation that causes of breakthrough volume and the reason of labor intensive, man-hour, cost, quality following.

Summary of the invention

The purpose of this utility model is providing a kind of SMD type high-current inductor of miniaturization, can utilize the small size big electric current of loading, and saves operation, and firm smooth being welded on the circuit board.

The purpose of this utility model is achieved in that a kind of SMD type high-current inductor of miniaturization, includes an iron core, a coil and one or more intermediate plates; Wherein: iron core is the insulation material; Coil is an enamelled wire, is provided with the first end pin and the second end pin; Intermediate plate is a conductive material, is bonding on holder.

The SMD type high-current inductor of described miniaturization, iron core is one-body molded through die casting together with coil.

The SMD type high-current inductor of described miniaturization, the arbitrary plane and the opposite planar thereof of iron core are concaved with holder.

The SMD type high-current inductor of described miniaturization, the acute angle acute angle relative with it that the wantonly two adjacent planes of iron core are constituted cuts into the obtuse angle.

The SMD type high-current inductor of described miniaturization, coil are outwards reeled in the concentric circles mode by enamelled wire and are formed more than at least one circle.

The SMD type high-current inductor of described miniaturization, intermediate plate are ㄇ font outward appearance.

Description of drawings

Below in conjunction with an accompanying drawing and an embodiment, the effect that describes content of the present utility model and advantage in detail and reached.

Fig. 1 is known schematic appearance.

Fig. 2 is the schematic diagram of known application.

Fig. 3 is a combination schematic diagram of the present utility model.

Fig. 4 is a decomposing schematic representation of the present utility model.

Fig. 5 is an embodiment schematic diagram of the present utility model.

The figure number explanation:

1... inductor 11... coil

12... iron core 13... guide card

2... iron core 21... solder joint

22... the coil 221... first end pin

222... the second end pin 23... intermediate plate

231... raised line 24... holder

Embodiment

See also shown in Figure 3ly, the utility model includes an iron core 2, a coil 22 and one or more intermediate plates 23; Iron core 2 (as shown in Figure 4) wherein, its arbitrary plane and opposite planar thereof are concaved with holder 24; And the acute angle acute angle relative with it that the wantonly two adjacent planes of iron core 2 are constituted cuts into the obtuse angle, is intended to reserve the volume that is increased because of after intermediate plate and the solid welding together of end pin; Iron core 2 is the insulation material and includes a coil 22 again, and is one-body molded behind die casting.

See also shown in Figure 3ly again, coil 22 is outwards reeled in the concentric circles mode by enamelled wire and is formed more than at least one circle, and the mat outer ring coats the inner ring mode and reduces height, and the height that reduces the stacked vertical coil is with reduced inductance device cumulative volume; Coil 22 two ends are provided with the first end pin 221 and the second end pin 222 again, and with diagonally opposing corner outside relative direction is exposed to the obtuse angle of iron core 2.

See also shown in Figure 4ly, intermediate plate 23 is through processing the recessed ㄇ of being converted into font, and arbitrary surface is all smooth plane, can be bonding on holder 24; Intermediate plate 23 1 ends are outward extended with a raised line 231 again, are exposed to the iron core 2 outer first end pin 221 and the second end pin 222 together with coil 22 and are welded on the obtuse angle of iron core 2, and solid welding locates to form a visual solder joint 21 (as shown in Figure 3) together; After the intermediate plate 23 and the first end pin 221 and 222 solid weldings together of the second end pin, the beginning becomes a conductive path again, and assembly is smooth being welded in (as shown in Figure 5) on the circuit board directly.By above-mentioned structure, can overcome that known spatial limitation, processing procedure are tediously long, the shortcoming of labor intensive, reach and save assembling procedure, reduce production costs lightening and smooth welding of volume and the effect that reduces fraction defective.

For making the utility model show its progressive and practicality more, now with commonly use that to do a comparative analysis as follows:

Located by prior art:

1, bulk volume is excessive;

2, pad out-of-flatness;

3, fraction defective is too high;

4, assembling is tediously long man-hour;

5, expend unnecessary manpower;

6, be not inconsistent the lightening now standard that requires.

The utility model advantage:

1, bulk volume is significantly dwindled;

2, pad is smooth;

3, reduced fraction defective;

4, shortened assembling man-hour;

5, needn't expend unnecessary manpower;

6, reduced production cost;

7, overcome can't the load shortcoming of big electric current of small size;

8, meet the lightening now standard that requires.

In sum, the utility model has reached the effect that institute's desire is promoted really breaking through under the previous technical pattern, and also non-those who are familiar with this art institute easily full of beard and, show the application condition that has met utility model patent, file an application in the whence in accordance with the law.

Claims (6)

1, a kind of SMD type high-current inductor of miniaturization includes an iron core, a coil and one or more intermediate plates; It is characterized in that iron core is the insulation material; Coil is an enamelled wire, is provided with the first end pin and the second end pin; Intermediate plate is a conductive material, is bonding on holder.

2. the SMD type high-current inductor of miniaturization according to claim 1 is characterized in that iron core is one-body molded through die casting together with coil.

3. the SMD type high-current inductor of miniaturization according to claim 1 is characterized in that, the arbitrary plane and the opposite planar thereof of iron core are concaved with holder.

4. the SMD type high-current inductor of miniaturization according to claim 1 is characterized in that, the acute angle acute angle relative with it that the wantonly two adjacent planes of iron core are constituted cuts into the obtuse angle.

5. the SMD type high-current inductor of miniaturization according to claim 1 is characterized in that, coil is outwards reeled in the concentric circles mode by enamelled wire and formed more than at least one circle.

6. the SMD type high-current inductor of miniaturization according to claim 1 is characterized in that, intermediate plate is a ㄇ font outward appearance.

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