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CN-122025379-A - Inductance element and electronic equipment

CN122025379ACN 122025379 ACN122025379 ACN 122025379ACN-122025379-A

Abstract

The present disclosure relates to inductance devices, and particularly to an inductance device and an electronic device. The inductance element comprises a main body, two embedded terminals and a coil. The main body is provided with a top surface, a bottom surface and two side surfaces which are oppositely arranged, wherein the opposite directions of the top surface and the bottom surface are first directions, the opposite directions of the two side surfaces are second directions, and the first directions are intersected with the second directions. Along the second direction, two embedded terminals are arranged at intervals on one side of the bottom surface facing the top surface. The coil is arranged in the main body and is electrically connected with the embedded terminal, the coil comprises at least one inner electrode, the orthographic projection of the inner electrode and the orthographic projection of the embedded terminal are partially overlapped on the side surface, the overlapped part is an overlapped area, the length of each overlapped area along the first direction is L1, the line width of the inner electrode is W2, and the L1 is less than W2. The inductance element can have larger inductance and higher quality factor.

Inventors

  • ZENG XIANGDONG
  • YAO HUIMING
  • QIN JIEYONG

Assignees

  • 深圳顺络电子股份有限公司

Dates

Publication Date
20260512
Application Date
20251013

Claims (10)

  1. 1. An inductive element, comprising: The main body is provided with a top surface, a bottom surface and two side surfaces which are oppositely arranged, wherein the opposite directions of the top surface and the bottom surface are first directions, the opposite directions of the two side surfaces are second directions, and the first directions are intersected with the second directions; The embedded terminals are arranged at intervals on one side of the bottom surface, facing the top surface, along the second direction; the coil is arranged in the main body and is electrically connected with the embedded terminals, and the coil comprises at least one layer of inner electrode, wherein the plane of the inner electrode is parallel to the plane formed by the first direction and the second direction; On the side surface, the orthographic projection of the inner electrode and the orthographic projection of the embedded terminal are partially overlapped, the overlapped part is an overlapped area, the length of each overlapped area along the first direction is L1, the line width of the inner electrode is W2, and L1 is less than W2.
  2. 2. The inductive element according to claim 1, characterized in that on the side surface the orthographic projection area of the individual inner electrodes on the side surface is S1 and the area of the overlapping area of the individual inner electrodes is S2, wherein S2/S1< 5%.
  3. 3. The inductive element of claim 2, wherein the total number of internal electrodes is n, wherein n x S2<700 square microns.
  4. 4. The inductive element of claim 1, wherein said body is hexahedral, said body further having oppositely disposed front and rear faces, said embedded terminals being in the shape of a straight strip in orthographic projection on said front face; The height of the embedded terminal along the first direction is H1, and the width of the embedded terminal along the second direction is W1, wherein H1/W1 is more than or equal to 0.07 and less than or equal to 0.18.
  5. 5. The inductive element of claim 1, wherein in said second direction, ends of two of said embedded terminals that are adjacent to each other each have a chamfered profile; the radius of the chamfer profile is r, wherein r is more than or equal to 10 microns and less than or equal to H1.
  6. 6. The inductive element of claim 1, wherein said inner electrode comprises: A side wire extending between the embedded terminal and the top surface; the lower side lead is connected to one end of the side lead, close to the embedded terminal, and at least partially extends along the upper side contour of the embedded terminal, wherein the upper side contour is a contour of the embedded terminal facing the top surface; the upper side wires extend along the second direction, two side wires are arranged at intervals along the second direction, and one end of each side wire, which is close to the top surface, is respectively connected with each end of the upper side wire along the second direction.
  7. 7. The inductive element of claim 6, wherein said side conductive lines extend in said first direction, wherein said side conductive lines have a length L2 and a height H2 in said first direction, said height satisfying the relationship 0.7L 2/H2 0.85; And/or, in the second direction, a distance between each side wire and the nearest one of the sides is D0, wherein 3 microns is equal to or less than D0 is equal to or less than 15 microns.
  8. 8. The inductive element of claim 6, wherein said upper profile extends from said side surface in said second direction and is proximate to a center of said body, and an end of said upper profile proximate to the center of said body is folded and extends to said bottom surface; The lower side wire comprises a first conductor section, a second conductor section and a third conductor section; the first conductor section is connected with one end of the side wire close to the embedded terminal and extends along the second direction to be close to the center of the main body, and the center of the main body is the center of the main body along the second direction; The second conductor section is connected with one end of the first conductor section close to the center of the main body, and is bent relative to the first conductor section and close to the bottom surface, wherein an inner included angle alpha between the first conductor section and the second conductor section is more than 180 degrees; The third conductor section is connected to one end of the second conductor section close to the bottom surface and extends along the second direction to be far away from the connected second conductor section, wherein the third conductor section is positioned between the two embedded terminals; The distance between the third conductor section and the bottom surface is D1, and the following relation is satisfied, namely D1/H1 is more than or equal to 0.6 and less than or equal to 1.6; The two embedded terminals are arranged at intervals along the second direction, the distance between the two embedded terminals is D2, and the narrowest distance between the third conductor section and the embedded terminals along the second direction is D3, so that the following relational expression is satisfied, namely D3/D2 is more than or equal to 0.05 and less than or equal to 0.1.
  9. 9. The inductive element according to any one of claims 1 to 8, wherein in the first direction the height of the body is H2, satisfying the following relation 0.08< H1/H2<0.15, and/or, In the first direction, the height H2 of the main body is less than or equal to 320 microns, and/or, H1 is 5 microns or less and H1 is 20 microns or less, and/or, Along the second direction, one ends of the two embedded terminals far away from each other extend to the side surfaces respectively.
  10. 10. An electronic device comprising an inductive element according to any one of claims 1 to 9.

Description

Inductance element and electronic equipment Related cross-reference The application discloses a division application of China patent application with the application number 202511455719.9 and the application name of inductance element and electronic equipment, which is filed by China patent office on the day of 10 and 13 of 2025. Technical Field The present disclosure relates to inductance devices, and particularly to an inductance device and an electronic device. Background In the inductance element, since the embedded terminal occupies the space in the main body, the internal electrode in the main body needs to be spaced from the embedded terminal by a certain distance, so that the wiring near the embedded terminal of the internal electrode becomes difficult to bend, the size of the internal electrode is forced to be reduced, the area in the coil of the internal electrode is difficult to be further increased, and the inductance and the quality factor (Q value) of the inductance element are limited. Disclosure of Invention The embodiment of the application discloses an inductance element and electronic equipment, which can have larger inductance and higher Q value. To achieve the above object, in a first aspect, an embodiment of the present application discloses an inductance element, including: the main body is provided with a top surface, a bottom surface and two side surfaces which are oppositely arranged, wherein the opposite directions of the top surface and the bottom surface are first directions, the opposite directions of the two side surfaces are second directions, and the first directions are intersected with the second directions. The embedded terminals are arranged at intervals on one side of the bottom surface, facing the top surface, along the second direction; the coil is arranged in the main body and is electrically connected with the embedded terminals, and the coil comprises at least one layer of inner electrode, wherein the plane of the inner electrode is parallel to the plane formed by the first direction and the second direction; On the side surface, the orthographic projection of the inner electrode and the orthographic projection of the embedded terminal are partially overlapped, the overlapped part is an overlapped area, the length of each overlapped area along the first direction is L1, the line width of the inner electrode is W2, and L1 is less than W2. In a possible implementation manner of the first aspect, an orthographic projection area of the single inner electrode on the side surface is S1, and an area of the overlapping area of the single inner electrode is S2, where S2/S1< 5%. In a possible implementation manner of the first aspect, the total number of the internal electrodes is n, where n×s2<700 square micrometers. In a possible implementation manner of the first aspect, the main body is a hexahedron, the main body further has a front surface and a back surface that are disposed opposite to each other, and an orthographic projection shape of the embedded terminal on the front surface is a straight strip shape. In a possible implementation manner of the first aspect, a height of the embedded terminal along the first direction is H1, and a width of the embedded terminal along the second direction is W1, where 0.07+.h1/w1+.0.18. In a possible implementation manner of the first aspect, along the second direction, one ends of the two embedded terminals, which are close to each other, have chamfer profiles; the radius of the chamfer profile is r, wherein r is more than or equal to 10 microns and less than or equal to H1. In a possible implementation manner of the first aspect, the inner electrode includes: A side wire extending between the embedded terminal and the top surface; the lower side lead is connected to one end of the side lead, close to the embedded terminal, and at least partially extends along the upper side contour of the embedded terminal, wherein the upper side contour is a contour of the embedded terminal facing the top surface; the upper side wires extend along the second direction, two side wires are arranged at intervals along the second direction, and one end of each side wire, which is close to the top surface, is respectively connected with each end of the upper side wire along the second direction. In a possible implementation manner of the first aspect, the side wires extend along the first direction, wherein the length of the side wires is L2, and the height of the main body is H2 along the first direction, so that the following relation is satisfied, namely 0.7-L2/H2-0.85; And/or, in the second direction, a distance between each side wire and the nearest one of the sides is D0, wherein 3 microns is equal to or less than D0 is equal to or less than 15 microns. In a possible implementation manner of the first aspect, the upper profile extends from the side surface along the second direction and is close to the center of the main body, and an end of the