CN220290604U

CN220290604U - Inductance connection structure

Info

Publication number: CN220290604U
Application number: CN202321820947.8U
Authority: CN
Inventors: 王林科; 金志洪
Original assignee: Jinhua Cimeng Intellectual Property Service Co ltd; Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Jinhua Cimeng Intellectual Property Service Co ltd; Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-02
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to the technical field of electromagnetism and discloses an inductance connecting structure, which comprises an inductance and a connecting base, wherein the inductance comprises a magnet part and a first connecting part, the first connecting part is in a flat plate shape, one end of the first connecting part is connected to the side surface of the magnet part, and the magnet part comprises an embedded part positioned below the first connecting part; the connecting base is provided with a containing structure, a second connecting part is formed on the top surface of the connecting base, and the second connecting part is positioned at the outer side of the containing structure; wherein, the embedded part is arranged in the accommodating structure, and the first connecting part and the second connecting part are electrically connected. According to the inductance connecting structure, the magnet part is arranged in the accommodating structure of the connecting base, so that the overall packaging height is reduced, the miniaturization of the inductance connecting structure is realized, and the application range of the inductance connecting structure is enlarged. And because the first connecting part of the inductor is in a flat plate shape, bending and flattening are not needed during manufacturing, the defective rate of the inductor is reduced, the production efficiency is improved, and the production cost is reduced.

Description

Inductance connection structure

Technical Field

The utility model relates to the technical field of electromagnetism, in particular to an inductance connecting structure.

Background

Currently, an integrally formed inductor generally includes a base and a winding, the base is an inductor housing formed by embedding the winding into metal magnetic powder and die-casting the winding, and the winding is generally a set of coils formed inside the base by die-casting. Because the integrated inductor adopts a fully-closed structure, the magnetic shielding effect is good, the electromagnetic interference can be effectively reduced, the noise is avoided, the direct current impedance with the same size is the lowest, and the current-resistant inductance value is ensured to be smooth in amplitude reduction, so that the integrated inductor has wide application.

In order to realize the electrical connection between the inductor and the PCB board, a connection terminal needs to be attached to the surface of the base. In the prior art, the connecting terminal of the inductor needs to be cut, bent, flattened and the like to form a folded plate structure, and the side edge of the base is bent to the bottom surface of the base, so that the connecting terminal is easy to damage in the whole process, and the defective rate of the integrally formed inductor is high. In addition, in the prior art, the part of the connecting terminal, which is positioned on the bottom surface of the base body after being bent, is directly welded on the PCB, so that the packaging height of the integrated structure consisting of the integrated inductor and the PCB is large, and the design requirement cannot be met.

Therefore, there is a need to provide an inductance connecting structure to solve the above-mentioned problems.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide the inductance connecting structure, which reduces the defective rate of the integrally formed inductance, reduces the packaging height of the inductance connecting structure and improves the space utilization rate of the inductance connecting structure.

To achieve the purpose, the utility model adopts the following technical scheme:

the inductance connecting structure comprises an inductance and a connecting base, wherein the inductance comprises a magnet part and a first connecting part, the first connecting part is in a flat plate shape, one end of the first connecting part is connected to the side surface of the magnet part, and the magnet part comprises an embedded part positioned below the first connecting part; the connecting base is provided with a containing structure, a second connecting part is formed on the top surface of the connecting base, and the second connecting part is positioned at the outer side of the containing structure; the embedded part is arranged in the accommodating structure, and the first connecting part and the second connecting part are electrically connected.

In some embodiments, the receiving structure is a through hole through the magnet portion.

In some embodiments, the receiving structure is a square hole and the magnet portion is cube-shaped.

In some embodiments, the receiving structure is a receiving groove open on the magnet portion.

In some embodiments, the ratio of the height difference H between the top surface of the magnet portion and the top surface of the connection base to the overall height H of the inductance connection structure is

In some embodiments, the height difference H between the top surface of the magnet portion and the top surface of the connection base is 0.90mm-1.90mm, and the overall height H of the inductance connection structure is 2.5mm-3.5mm.

In some embodiments, the inductor includes two first connection portions, the two first connection portions are connected to two side surfaces of the magnet portion, which are oppositely disposed, two second connection portions are formed on the top surface of the connection base, the two second connection portions are located at two sides of the receiving structure, which are oppositely disposed, and the two first connection portions and the second connection portions are connected in a one-to-one correspondence.

In some embodiments, the magnet part comprises a base and a winding, wherein the winding is encapsulated inside the base, and two ends of the winding are connected with two ends of the first connecting parts in the base in a one-to-one correspondence manner.

In some embodiments, the two first connection portions are located in the same plane, and the two first connection portions are disposed parallel to the top surface of the connection base.

In some embodiments, the number of the inductors is a plurality, a plurality of accommodating structures are arranged on the connecting base at intervals, and one inductor is arranged in each accommodating structure.

The utility model has the beneficial effects that:

the inductance connecting structure comprises a magnet part and a first connecting part, wherein the first connecting part is in a flat plate shape, one end of the first connecting part is connected to the side surface of the magnet part, and the magnet part comprises an embedded part positioned below the first connecting part; the connecting base is provided with a containing structure, a second connecting part is formed on the top surface of the connecting base, and the second connecting part is positioned at the outer side of the containing structure; wherein, the embedded part is arranged in the accommodating structure, and the first connecting part and the second connecting part are electrically connected. This inductance connection structure has reduced holistic encapsulation height through arranging the magnet portion in the accommodation structure of connecting base, has improved inductance connection structure's space utilization, has realized inductance connection structure's miniaturization for inductance connection structure's application range increases. And because the first connecting part of the inductor is in a flat plate shape, bending and flattening are not needed during manufacturing, the defective rate of the inductor is reduced, the production efficiency is improved, and the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is an isometric view of an inductance connecting structure according to an embodiment of the present utility model;

FIG. 2 is an isometric view of an inductor provided by an embodiment of the present utility model;

fig. 3 is a front view of an inductance connecting structure according to an embodiment of the present utility model.

In the figure:

1. an inductance; 11. a magnet portion; 12. a first connection portion;

2. a connecting base; 21. a receiving structure; 22. and a second connecting part.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, the present embodiment provides an inductance connecting structure including an inductance 1 and a connecting base 2. The inductor 1 includes a magnet portion 11 and a first connection portion 12. The first connecting portion 12 is flat, one end of the first connecting portion 12 is connected to the side surface of the magnet portion 11, and the magnet portion 11 includes an embedded portion located below the first connecting portion 12. The connecting base 2 is provided with a containing structure 21, a second connecting part 22 is formed on the top surface of the connecting base 2, and the second connecting part 22 is positioned on the outer side of the containing structure 21; wherein the embedded portion of the magnet portion 11 is disposed in the receiving structure 21, and the first connection portion 12 and the second connection portion 22 are electrically connected.

Compared with the connecting terminal needing to be bent in the prior art, the inductor connecting structure provided by the embodiment of the utility model has the advantages that the first connecting part 12 of the inductor 1 is arranged to be in the shape of the flat plate, and compared with the connecting part on the conventional inductor, the connecting terminal has fewer bending and flattening procedures, so that the defective rate of the inductor 1 is reduced. In addition, the second connecting portion 22 is arranged on the top surface of the connecting base 2, and the first connecting portion 12 which is in the shape of a flat plate is directly and electrically connected with the second connecting portion 22, so that the convenience of connecting the first connecting portion 12 with the connecting base 2 is improved, and interference between other electric elements mounted on the connecting base 2 and the first connecting portion 12 is avoided. In addition, in the inductance connecting structure provided by the embodiment of the utility model, the embedded part of the magnet part 11, which is positioned below the first connecting part 12, is arranged in the accommodating structure 21, so that the packaging height of the inductance connecting structure is reduced, the miniaturization of the inductance connecting structure is realized, and the application range of the inductance connecting structure is enlarged.

In some embodiments, the connection base 2 is a PCB board.

The magnet portion 11 is a main body structure of the inductor 1, specifically, the magnet portion 11 includes a base and windings, the windings are encapsulated inside the base, and two ends of the windings are connected in one-to-one correspondence with ends of the two first connection portions 12 located inside the base. In some embodiments, the winding is in a spiral line structure formed by winding a conductive cable, and the base is in a block structure formed by baking and solidifying the winding by wrapping metal powder. The first connection portion 12 is a connection terminal of the inductor 1, the first connection portion 12 is a plate-shaped structure made of conductive material, and in the embodiment of the present utility model, specific materials of the first connection portion 12 are not limited, and flexible setting is performed according to requirements.

In order to achieve the electrical connection between the first connection portion 12 and the second connection portion 22, there are a variety of different connection manners for the first connection portion 12 and the second connection portion 22. In some embodiments, the first and second connection portions 12, 22 are welded together using a welding material. In some more specific embodiments, the solder may be tin wire, lead wire, or copper wire. In some other embodiments, the first and second connection portions 12 and 22 are bonded together using conductive glue. In some more specific embodiments, the conductive paste may be a silver-based conductive paste, a gold-based conductive paste, a copper-based conductive paste, or a carbon-based conductive paste.

The accommodating structure 21 is used for accommodating a part of the magnet portion 11, and in some embodiments, referring to fig. 1, the accommodating structure 21 is a through hole penetrating the magnet portion 11, an embedded portion of the magnet portion 11 below the first connecting portion 12 is disposed in the through hole, and the first connecting portion 12 is overlapped on the top surface of the magnet portion 11. In a specific embodiment, the accommodating structure 21 is a square hole, and the magnet portion 11 is cubic. In another specific embodiment, the accommodating structure 21 is a circular hole, and the magnet portion 11 is cylindrical.

In other embodiments, the accommodating structure 21 may be an accommodating groove formed on the magnet portion 11, and an embedded portion of the magnet portion 11 below the first connecting portion 12 is disposed in the accommodating groove. The depth of the accommodating groove may be equal to or smaller than the height of the embedded portion in the vertical direction, and at this time, the bottom surface of the magnet portion 11 may be directly attached to the bottom surface of the accommodating groove, thereby realizing support of the magnet portion 11; of course, the depth of the accommodating groove may be larger than the height of the embedded portion in the vertical direction, and a certain space is provided between the bottom surface of the magnet portion 11 and the bottom surface of the accommodating groove, so that the magnet portion 11 is lifted and suspended in the accommodating groove by the attachment of the first connecting portion 12 and the second connecting portion 22. In a specific embodiment, the accommodating structure 21 is a square groove, and the magnet portion 11 is cubic. In another specific embodiment, the accommodating structure 21 is a circular groove, and the magnet portion 11 is cylindrical.

The cross-sectional shape of the magnet portion 11 may be different from the cross-sectional shape of the housing structure 21, for example, the cross-sectional shape of the magnet portion 11 may be square, and the cross-sectional shape of the housing structure 21 may be circular, so long as the insertion portion of the magnet portion 11 can be placed in the housing structure 21.

In general, the ratio of the height difference H between the top surface of the magnet portion 11 and the top surface of the connection base 2 to the overall height H of the inductance connection structure isThe overall height H of the inductance connecting structure is more than 4 mm.

In order to make the package height of the inductance connecting structure meet the use requirement, the ratio of the height difference h between the top surface of the magnet portion 11 and the top surface of the connection base 2 to the entire height of the inductance connecting structure is limited within a certain range. In some embodiments, the ratio of the height difference H between the top surface of the magnet portion 11 and the top surface of the connection base 2 to the overall height H of the inductance connection structure is

In some embodiments, referring to fig. 3, the overall height H of the inductive connection structure is 2.5mm-3.5mm, for example, the overall height H of the inductive connection structure may be 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, or 3.5mm.

In order to make the size of the inductor 1 assembled with the connection base 2 meet the use requirement, the height difference between the top surface of the magnet portion 11 and the top surface of the connection base 2 is limited to a certain range. In some embodiments, referring to fig. 3, the height difference h between the top surface of the magnet portion 11 and the top surface of the connection base 2 is 0.90mm to 1.90mm, for example, the height difference h between the top surface of the magnet portion 11 and the top surface of the connection base 2 may be 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, or 1.9mm.

In some more specific embodiments, the overall height H of the inductance connecting structure is set to 3.0mm, and the height difference H between the top surface of the magnet portion 11 and the top surface of the connection base 2 is set to 1.40mm.

As shown in fig. 2 and 3, the inductor 1 includes two first connection portions 12. In some embodiments, referring to fig. 2, two first connection parts 12 are connected to two side surfaces of the magnet part 11 opposite to each other, two second connection parts 22 are formed on the top surface of the connection base 2, the two second connection parts 22 are located at two sides of the receiving structure 21 opposite to each other, and the two first connection parts 12 and the two second connection parts 22 are connected in a one-to-one correspondence.

Of course, in other embodiments, the two first connection portions 12 may be disposed on the side surfaces of the magnet portion 11 disposed adjacently, and the two second connection portions 22 are disposed on two sides of the receiving structure 21 disposed adjacently, so that the two first connection portions 12 and the two second connection portions 22 can be connected in a one-to-one correspondence.

Further, the number of the inductors 1 provided on the connection base 2 may be one or more in order to meet different use requirements.

In some embodiments, as shown in fig. 1, the number of inductors 1 is 1, 1 accommodating structure 21 is provided on the connection base 2, and one inductor 1 is provided in the accommodating structure 21.

In some other embodiments, the number of the inductors 1 is multiple, and a plurality of accommodating structures 21 are arranged on the connection base 2 at intervals, and one inductor 1 is arranged in each accommodating structure 21. For example, the number of the inductors 1 is 2, 3, 4, 5 or more, and correspondingly, the number of the accommodating structures 21 provided at intervals on the connection base 2 is 2, 3, 4, 5 or the same number as the inductors 1. The plurality of receiving structures 21 provided on the connection base 2 may have the same shape or may be different from each other, and the inductors 1 provided in the different receiving structures 21 may have the same shape or may be different from each other.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. An inductive coupling structure, the inductive coupling structure comprising:

the inductor (1), the inductor (1) comprises a magnet part (11) and a first connecting part (12), the first connecting part (12) is in a flat plate shape, one end of the first connecting part (12) is connected to the side surface of the magnet part (11), and the magnet part (11) comprises an embedded part positioned below the first connecting part (12);

a connecting base (2), wherein a containing structure (21) is arranged on the connecting base (2), a second connecting part (22) is formed on the top surface of the connecting base (2), and the second connecting part (22) is positioned on the outer side of the containing structure (21);

wherein the embedded part is arranged in the accommodating structure (21), and the first connecting part (12) and the second connecting part (22) are electrically connected.

2. The inductive coupling structure according to claim 1, wherein,

the receiving structure (21) is a through hole penetrating the magnet part (11).

3. The inductive coupling structure according to claim 2, wherein,

the accommodating structure (21) is a square hole, and the magnet part (11) is cubic.

4. The inductive coupling structure according to claim 1, wherein,

the containing structure (21) is a containing groove formed in the top surface of the magnet part (11).

5. The inductive coupling structure according to claim 1, wherein,

the ratio of the height difference H between the top surface of the magnet part (11) and the top surface of the connecting base (2) to the whole height H of the inductance connecting structure is 0.36-less ^h _H ≤0.55。

6. The inductive coupling structure according to claim 5, wherein,

the height difference H between the top surface of the magnet part (11) and the top surface of the connecting base (2) is 0.90mm-1.90mm, and the overall height H of the inductance connecting structure is 2.5mm-3.5mm.

7. The inductive coupling structure according to claim 1, wherein,

the inductor (1) comprises two first connecting portions (12), the two first connecting portions (12) are connected to two side faces, which are oppositely arranged, of the magnet portion (11), two second connecting portions (22) are formed on the top face of the connecting base (2), the two second connecting portions (22) are located on two sides, which are oppositely arranged, of the accommodating structure (21), and the two first connecting portions (12) are connected with the second connecting portions (22) in a one-to-one correspondence mode.

8. The inductive coupling structure according to claim 7, wherein,

the magnet part (11) comprises a base and windings, wherein the windings are packaged in the base, and two ends of the windings are connected with the ends of the two first connecting parts (12) in the base in a one-to-one correspondence mode.

9. The inductive coupling structure according to claim 7, wherein,

the two first connecting parts (12) are positioned in the same plane, and the two first connecting parts (12) are arranged in parallel with the top surface of the connecting base (2).

10. The inductive connecting structure according to any one of claims 1 to 9, wherein,

the number of the inductors (1) is multiple, a plurality of containing structures (21) are arranged on the connecting base (2) at intervals, and each containing structure (21) is internally provided with one inductor (1).