CN212113348U

CN212113348U - SMD three-pin inductor

Info

Publication number: CN212113348U
Application number: CN202021362432.4U
Authority: CN
Inventors: 谢添才
Original assignee: Shenzhen Xinchangjia Technology Co ltd
Current assignee: Shenzhen Xinchangjia Technology Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-12-08
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a SMD tripod inductor one side is used for spot welding, be used for welding the inductor on the circuit board through this paster face, on the paster face, thereby be provided with two bridge arms and divide into three paster face with the paster face, there is three grafting pin for this inductor, draw forth three end spot welding respectively at first paster face after the coil winding, on second paster face and the third paster face, can pass through automation equipment spot welding with the inductor on the circuit board through this three paster face, do not need the manual alignment of rethread to peg graft, improve production efficiency greatly.

Description

SMD three-pin inductor

Technical Field

The utility model relates to an inductor field especially relates to a SMD tripod inductor.

Background

The inductor can be the component that can convert the electric energy into magnetic energy and store, is the indispensable components and parts in the circuit board, and the inductance is two pins usually, but also is indispensable in some if electronic face-spray appearance field the inside tripod inductance, need artifically align the inductor when producing to this type of circuit board and peg graft the via hole on the circuit board and weld again, unable automated production, so production efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the technical scheme provides a chip three-pin inductor, which is arranged in a chip manner, so that the production efficiency can be effectively enhanced.

In order to achieve the purpose, the technical scheme is as follows:

the utility model provides a SMD tripod inductor, has the magnetic core of coil including the winding, the unwrapping wire groove that stretches into after supplying the coil winding is seted up to the paster face of magnetic core, the protruding two bridge arms that are equipped with in unwrapping wire groove both sides to make the paster face open and establish the first paster face that is located unwrapping wire groove one side, be located the second paster face of unwrapping wire inslot and be located the third paster face of unwrapping wire groove opposite side, the paster face all with the end spot welding of coil.

In some embodiments, a concave cavity for collecting solder is recessed in the middle of each of the second and third attachment surfaces.

In some embodiments, the coil includes a first winding and a second winding, one side of the first winding extends into the discharge slot and is welded in the second patch surface, the other side of the first winding is wound and then welded in the first patch surface, one side of the second winding is welded in the second patch surface, and the other side of the second winding is wound and then welded in the third patch surface.

In some embodiments, the cavity has an inverted triangular cross-section.

In some embodiments, the width of the wire releasing groove is 0.94-1.14mm, and the length of the wire releasing groove is 6.91-7.21 mm.

In some embodiments, the wire unwinding groove is provided with a first unwinding cavity and a second unwinding cavity twice.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

fig. 3 is a third schematic structural diagram of the present invention;

fig. 4 is an electrical schematic diagram of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the utility model provides a SMD tripod inductor, including winding magnetic core 2 that has coil 1, the unwrapping wire groove 3 that stretches into after supplying coil 1 winding is seted up to the paster face of magnetic core 2, two bridge arms 4 are protruding to 3 both sides of unwrapping wire groove to make the paster face open and establish to be located the first paster face 5 of unwrapping wire groove 3 one side, be located the second paster face 6 of unwrapping wire groove 3 and be located the third paster face 7 of 3 opposite sides of unwrapping wire groove, the paster face all with the end spot welding of coil 1.

In this embodiment, the middle portions of the second and

third patch surfaces

6 and 7 are both concavely provided with a concave cavity 8 for collecting solder, which is beneficial to melting the solder in the concave cavity during production, and plays a role of containing solder.

In this embodiment, the coil 1 includes a first winding and a second winding, one side of the first winding extends into the wire laying groove 3 and is spot-welded in the second patch surface 6, the other side of the first winding is wound and then is spot-welded in the first patch surface 5, one side of the second winding is spot-welded in the second patch surface 6, the other side of the second winding is wound and then is spot-welded in the third patch surface 7, the setting performance of the two windings is improved, as shown in the figure, the first winding is wound first, the ends of the two ends of the first winding are welded, and then the ends of the winding are welded by the second winding, so that the use of the two windings increases the performance of the inductor.

In this embodiment, the cross section of the cavity 8 is an inverted triangle, which is more beneficial to solder collection.

In this embodiment, as shown in fig. 2-3, the width of the slot 3 is 0.94-1.14mm, the length is 6.91-7.21mm, a2 is 7.06 ± 0.15, B is 3.00 ± 0.15, D is 5.20 ± 0.2, E is 1.00 ± 0.15, F is 2.60 ± 0.15, G is 1.60 ± 0.15, C is 1.04 ± 0.10, H is 1.04 ± 0.10, T is 3.52 ± 0.10, I is 3.30 ± 0.1, and M is 0.33 ± 0.10, which prevents excessive solder from being wasted during spot welding, and the two bridge arms can limit the solder flow and obstruct the connection between the patch surface and the patch surface.

In this embodiment, as shown in fig. 4, 1.2.3 is a winding pin, 1 is a central common pin, 1-2 is 25UH,1-3 is 800UH, where 1 is a second patch surface, 2 is a first patch surface, and 3 is a third patch surface.

In this embodiment, the wire releasing slot 3 is provided with the first releasing cavity 9 and the second releasing cavity 10 twice, and when a manufacturer does not need two windings and only needs the two-pin inductor for use, the two ends of one winding wound around the magnetic core are respectively welded in the first releasing cavity and the second releasing cavity, so that the use of the two-pin inductor can be used.

The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the scope of the present application, which is within the scope of the present application, except that the same or similar principles and basic structures as the present application may be used.

Claims

1. A SMD three-pin inductor which characterized in that: magnetic core (2) that have coil (1) including the winding, wire casing (3) that supply coil (1) winding back to stretch into are seted up to the paster face of magnetic core (2), wire casing (3) both sides are protruding to be equipped with two bridge arms (4) to make the paster face open and to be located first paster face (5) of wire casing (3) one side, be located second paster face (6) of wire casing (3) and be located third paster face (7) of wire casing (3) opposite side, the paster face all with the end spot welding of coil (1).

2. The chip three-pin inductor according to claim 1, wherein: and concave cavities (8) for collecting soldering tin are concavely arranged in the middle parts of the second patch surface (6) and the third patch surface (7).

3. The chip three-pin inductor according to claim 1, wherein: the coil (1) comprises a first winding and a second winding, one side of the first winding extends into the wire placing groove (3) and is welded in the second patch surface (6) in a spot mode, the other side of the first winding is welded in the first patch surface (5) after being wound, one side of the second winding is welded in the second patch surface (6) in a spot mode, and the other side of the second winding is welded in the third patch surface (7) after being wound.

4. The chip three-pin inductor according to claim 2, wherein: the cross section of the concave cavity (8) is in an inverted triangle shape.

5. The chip three-pin inductor according to claim 4, wherein: the width of the wire laying groove (3) is 0.94-1.14mm, and the length is 6.91-7.21 mm.

6. The chip three-pin inductor according to claim 1, wherein: and a first holding cavity (9) and a second holding cavity (10) are arranged on two sides of the holding groove (3).