CN214753209U

CN214753209U - Inductance element of bending-free end piece

Info

Publication number: CN214753209U
Application number: CN202120764262.0U
Authority: CN
Inventors: 王正庭
Original assignee: Suzhou More Chance Electronic Co ltd
Current assignee: Suzhou More Chance Electronic Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-16
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses an exempt from inductive element of curved end piece, include the iron core, trade core, end piece and colloid down, the lower terminal surface of going up the iron core is equipped with a recess, can supply the convex end piece holding of iron core upper surface down when this recess is upper and lower iron core and end piece equipment, the iron core bottom is equipped with a T type boss down, and this T type boss both sides form two guide ways, the end piece is the mouth type conductor, and this mouth type bottom becomes open form and forms two electrode faces, the end piece is two guide way department covers the outside at iron core down from the opening of T type boss promptly, the up end protrusion of end piece is in the top surface and the holding of iron core down in the recess, the colloid is filled in the space department between last iron core and the lower iron core. In this way, the utility model discloses can reduce the air gap loss, improve inductor efficiency.

Description

Inductance element of bending-free end piece

Technical Field

The utility model relates to an inductance element field especially relates to an exempt from inductance element of curved end piece.

Background

As shown in fig. 1, the conventional inductor with low inductance and large current includes an upper core 11, a lower core 15, a spacer 12, an adhesive 14 and a coil 16, wherein the spacer 12 is disposed between the upper core 11 and the lower core 15, so that a gap is generated due to the thickness of the spacer 12 after the upper core 11 and the lower core 15 are bonded, and the adhesive 14 is coated on the surfaces of the upper core 11 and the lower core 15 which are not shielded by the spacer 12 to adhere the upper core 11 and the lower core 15.

However, when the contact area between the spacer 12 and the upper core 11 and the lower core 15 is too large due to too large spacer 12, the adhesive 14 may be coated on the surface of the upper core 11 and the lower core 15, and the area for adhering the upper core 11 and the lower core 15 is too small, so that the upper core 11 and the lower core 15 cannot be firmly adhered, and the upper core 11 and the lower core 15 may be detached due to insufficient adhesion stability. In addition, the conventional inductor achieves inductance by forming a Gap between the upper core 11 and the lower core 15 through the spacer 12, but the Gap inevitably causes air Gap loss (Gap loss), which reduces the efficiency of the inductor.

Thus, there is still a need for improvement and development of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an exempt from inductive element of bent end piece, can reduce the air gap loss, improves inductor efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme be: the lower end face of the upper iron core is provided with a groove, the groove is used for accommodating the end piece with the convex upper surface of the lower iron core when the upper iron core and the end piece are assembled, the bottom of the lower iron core is provided with a T-shaped boss, two sides of the T-shaped boss form two guide grooves, the end piece is a mouth-shaped conductor, the bottom of the mouth-shaped conductor is open to form two electrode surfaces, the end piece is sleeved outside the lower iron core from the opening of the T-shaped boss, namely the two guide grooves, the upper end face of the end piece protrudes out of the top surface of the lower iron core and is accommodated in the groove, the colloid is filled in the gap between the upper iron core and the lower iron core, and the groove and the two guide grooves are arranged vertically and oppositely.

Further, granules are stirred in the colloid, and the size of the granules controls the distance between the upper iron cores to complete characteristic adjustment.

Further, the granules may be glass beads, plastic beads, or the like.

Further, the magnetic powder is stirred in the colloid.

Further, the magnetic powder is a ferrite material, an alloy material, or the like.

Furthermore, the end plate is a conductor formed by punch forming, the end plate is formed by punch forming of pure copper, and nickel plating or tin plating is carried out on the surface of the end plate.

Further, the colloid is an epoxy resin.

The utility model has the advantages that: the utility model discloses an inductance element of bending-free end piece, the colloid is filled in the gap between the upper iron core and the lower iron core, the air gap loss can be reduced, and the efficiency of the inductor is improved; the end piece is a punch-formed conductor and is installed in a matched mode with the T-shaped boss arranged at the bottom of the lower iron core, the upper end face of the end piece protrudes out of the top face of the lower iron core and is contained in the groove, and the structure is reasonable and installation is simple.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

fig. 2 is a schematic structural diagram of an inductance device with bending-free end plates according to the present invention;

fig. 3 is an exploded view of an inductive element of the present invention without a bent end piece.

11. An upper iron core; 12. a gasket; 13. an end piece; 14. an adhesive agent; 15. changing the core downwards; 16. a coil; 17. a groove; 18. a T-shaped boss; 19. a guide groove.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 2 and 3, an embodiment of the present invention includes:

the utility model relates to an inductance element with bending-free end plates, which comprises an upper iron core 11, a lower replacement core 15, an end plate 13 and colloid, wherein the lower end surface of the upper iron core 11 is provided with a groove 17, the groove 17 is used for accommodating the protruding end piece 13 on the upper surface of the lower iron core 15 when the upper iron core 11, the lower iron core 15 and the end piece 13 are assembled, the bottom of the lower iron core 15 is provided with a T-shaped boss 18, two guide grooves 19 are formed on two sides of the T-shaped boss, the end sheet 13 is a mouth-shaped conductor, the bottom of the mouth is open to form two electrode surfaces, the end piece 13 is sleeved outside the lower iron core 15 from the opening of the T-shaped boss, namely two guide grooves 19, the upper end surface of the end piece 13 protrudes from the top surface of the lower iron core 15 and is accommodated in the groove 17, the colloid is filled in the gap between the upper iron core 11 and the lower iron core 15, and the groove 17 and the two guide grooves 19 are arranged vertically and oppositely.

Further, granules are stirred in the colloid, and the size of the granules controls the distance between the upper iron core and the lower iron core to complete characteristic adjustment. Still further, magnetic powder is stirred in the colloid, and the magnetic powder is a ferrite material, an alloy material and the like.

Further, the granules may be glass beads, plastic beads, or the like.

Further, the terminal piece 13 is a conductor formed by press molding, the terminal piece 13 is formed by press molding of pure copper, and the surface of the terminal piece 13 is plated with nickel or tin.

Further, the colloid is an epoxy resin.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The lower end face of the upper iron core is provided with a groove, the groove can accommodate the end piece with the upper surface protruding out of the lower iron core when the upper iron core, the lower iron core and the end piece are assembled, the bottom of the lower iron core is provided with a T-shaped boss, two sides of the T-shaped boss form two guide grooves, the end piece is a mouth-shaped conductor, the bottom of the mouth-shaped boss is open to form two electrode surfaces, the end piece is sleeved outside the lower iron core from the opening of the T-shaped boss, namely the two guide grooves, the upper end face of the end piece protrudes out of the top surface of the lower iron core and is accommodated in the groove, the colloid is filled in a gap between the upper iron core and the lower iron core, and the groove and the slotting directions of the two guide grooves are arranged vertically.

2. The bend-free end piece inductor of claim 1, wherein: granules are stirred in the colloid, and the size of the granules controls the distance between the upper iron core and the lower iron core to complete characteristic adjustment.

3. The bend-free end piece inductor of claim 2, wherein: the granules can be glass beads, plastic beads and the like.

4. The bend-free end piece inductor of claim 2, wherein: the magnetic powder is stirred in the colloid.

5. The bend-free end piece inductor of claim 4, wherein: the magnetic powder is ferrite material, alloy material and the like.

6. The bend-free end piece inductor of claim 1, wherein: the end plate is a conductor formed by punch forming, the end plate is formed by punch forming of pure copper, and nickel plating or tin plating is carried out on the surface of the end plate.

7. The bend-free end piece inductor of claim 1, wherein: the colloid is an epoxy resin.