Electronic component and terminal device

Abstract

Disclosed in the present invention are an electronic component and a terminal device. The electronic component comprises a dielectric layer and an electrode layer, the electrode layer being arranged on the dielectric layer; the electrode layer comprises a main body portion, a first end portion and a second end portion, the first end portion and the second end portion being respectively connected to two ends of the main body portion, so as to jointly enclose to form an inductor region; the first end portion and the second end portion both extend in a first direction, and are arranged opposite to each other at an interval in a second direction; the width of the main body portion in a line width direction thereof is a first width, and the width of at least part of the first end portion in the line width direction thereof is less than the first width, and / or the width of at least part of the second end portion in the line width direction thereof is less than the first width, such that the distance between the first end portion and the second end portion in the second direction is increased, the first direction being perpendicular to the second direction. Using the solution of the present invention can increase the distance between the first end portion and the second end portion, avoiding short circuits caused by mutual conduction between the first end portion and the second end portion.

Description

Electronic component and terminal device

[0001] Related Cross Reference

[0002] The present application claims priority to the Chinese patent application No. 2024112816601, filed on September 13, 2024, entitled "Electronic component and terminal device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of inductance, and in particular to an electronic component and a terminal device. BACKGROUND

[0004] In the inductance industry, a laminated chip inductor usually includes a plurality of dielectric layers and a plurality of electrode layers. The effective coil area enclosed by the electrode layers affects the inductance. In order to obtain a higher inductance in a limited number of dielectric layers and electrode layers, the distance between the two end portions of the electrode layers is usually made closer to increase the effective coil area. However, the material of the electrode layers is usually silver. In a high-temperature load environment, if the distance between the two end portions of the electrode layers is set to be closer, the two end portions of the electrode layers will have a silver migration phenomenon, resulting in a short circuit between the two end portions, which affects the normal operation of the laminated chip inductor. SUMMARY

[0005] The present application discloses an electronic component and a terminal device, which can increase the distance between the first end portion and the second end portion, and avoid a short circuit between the first end portion and the second end portion.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present application discloses an electronic component, comprising:

[0007] a dielectric layer; and

[0008] an electrode layer, the electrode layer being arranged on the dielectric layer, the electrode layer including a main body portion, a first end portion and a second end portion, the first end portion and the second end portion being respectively connected to two ends of the main body portion to jointly enclose an inductance region, the first end portion and the second end portion being arranged in extension along a first direction and being arranged in opposition and in interval along a second direction;

[0009] a width of the main body portion along a line width direction thereof is a first width, a width of at least part of the first end portion along a line width direction thereof is less than the first width, and / or a width of at least part of the second end portion along a line width direction thereof is less than the first width, so as to increase the distance between the first end portion and the second end portion along the second direction;

[0010] The first direction is perpendicular to the second direction.

[0011] As an optional implementation, in the embodiment of the first aspect of the present application, when the width of at least part of the first end portion is less than the first width, the first end portion has a first part, the first part has a first surface spaced apart from the second end portion, the first surface is a plane, and the first surface is arranged away from the second end portion in the second direction, so that the width of the first part in the line width direction is less than the first width.

[0012] As an optional implementation, in the embodiment of the first aspect of the present application, in the first direction, the length of the second end portion is less than the length of the first end portion, and the length of the first part is adapted to the length of the second end portion.

[0013] As an optional implementation, in the embodiment of the first aspect of the present application, the first end portion further comprises a second part connected between the first part and the main body portion, and in the first direction, at least part of the side of the second part close to the second end portion is configured as a transition surface, and in the direction of the second part pointing to the first part, the distance between the transition surface and the second end portion in the second direction gradually increases.

[0014] As an optional implementation, in the embodiment of the first aspect of the present application, the first width is D1, in the first direction, the length of the part of the second part having the transition surface is L1, and the relationship 0.5D1≤L1≤1.5D1 is satisfied, and / or,

[0015] In the first direction, the length of the part of the first end portion opposite to the second end portion is L2, and the relationship 1.8D1≤L2≤2.2D1 is satisfied.

[0016] As an optional implementation, in the embodiment of the first aspect of the present application, the first width is D1, the width of the first end portion is D2, and the relationship 0.6D1≤D2≤0.9D1 is satisfied, and / or, the width of the second end portion is D3, and the relationship 0.6D1≤D3≤0.9D1 is satisfied.

[0017] As an optional implementation, in the embodiment of the first aspect of the present application, the first width is D1, in the second direction, the distance between the first end portion and the second end portion is H1, and the relationship 0.3D1≤H1≤0.7D1 is satisfied.

[0018] As an optional implementation, in the embodiment of the first aspect of the present application, the first width is D1, the width of the first end portion is D2, the width of the second end portion is D3, and the distance between the first end portion and the second end portion in the second direction is H1, and the following relationship is satisfied: 1.5D1≤D2+D3+H1≤2.5D1.

[0019] As an optional implementation, in the embodiment of the first aspect of the present application, the second end portion has a second surface and a third surface in the second direction, the second surface is the surface close to the first end portion, and the second surface is a plane.

[0020] The third surface is arranged close to the second surface in the second direction, so that the width of the second end portion is less than the first width.

[0021] In a second aspect, the present application also discloses a terminal device, which comprises the electronic component as described in the first aspect.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The electronic component and the terminal device provided by the embodiments of the present application can increase the distance between the first end portion and the second end portion by making the width of the first end portion of the electrode layer in the line width direction and / or the width of the second end portion of the electrode layer in the line width direction less than the first width, so that there is a sufficient safety distance between the first end portion and the second end portion, and when the phenomenon of silver migration occurs between the first end portion and the second end portion in a high-temperature load environment, the first end portion and the second end portion can be prevented from being mutually conductive to cause short circuit. Meanwhile, the scheme of the present application does not need to adjust the line width of the main body portion of the electrode layer as a whole, that is, the line width of the main body portion is not changed, but the width of the first end portion of the electrode layer in the line width direction and / or the width of the second end portion of the electrode layer in the line width direction is made less than the first width, so that this way will not reduce the effective coil area of the electronic component, and the influence on the overall direct current resistance of the electrode layer is relatively small, so that the situation of serious heating of the electrode layer is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] FIG. 1 is a first structure schematic diagram of an electronic component of the related art;

[0026] FIG. 2 is a second structural schematic diagram of an electronic component in the related art;

[0027] FIG. 3 is a third structural schematic diagram of an electronic component in the related art;

[0028] FIG. 4 is a fourth structural schematic diagram of an electronic component in the related art;

[0029] FIG. 5 is a first structural schematic diagram of an electronic component disclosed by the first aspect of the embodiments of the present application;

[0030] FIG. 6 is a second structural schematic diagram of an electronic component disclosed by the first aspect of the embodiments of the present application;

[0031] FIG. 7 is a third structural schematic diagram of an electronic component disclosed by the first aspect of the embodiments of the present application;

[0032] FIG. 8 is a fourth structural schematic diagram of an electronic component disclosed by the first aspect of the embodiments of the present application;

[0033] FIG. 9 is a three-dimensional structural schematic diagram of an electronic component disclosed by the first aspect of the embodiments of the present application;

[0034] FIG. 10 is a three-dimensional structural schematic diagram of a terminal device disclosed by the second aspect of the embodiments of the present application.

[0035] FIG. 1 is an electronic component; FIG. 10 is a terminal device; FIG. 11 is a first end portion; FIG. 12 is an outer electrode layer; FIG. 2 is a first direction; FIG. 3 is a second direction; and FIG. 4 is a third direction. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the inductance industry, a laminated chip inductor generally comprises a plurality of dielectric layers and a plurality of electrode layers, each dielectric layer is provided with a corresponding electrode layer, and two adjacent electrode layers are isolated by a dielectric layer. Due to the limited size of the dielectric layer, the effective coil area enclosed by the electrode layer on the dielectric layer will affect the inductance. In order to obtain higher inductance in a limited number of dielectric layers and electrode layers, the distance between the two end portions of the electrode layer is usually close, thereby expanding the effective coil area enclosed by the electrode layer. However, the material of the electrode layer is usually silver. As shown in FIG. 1, if the distance between the first end portion 111 and the second end portion 112 of the electrode layer 11 is set to be close, the two end portions of the electrode layer 11 will have silver migration phenomenon, resulting in short circuit between the two end portions, which affects the normal work of the laminated chip inductor.

[0038] In order to facilitate comparison with the prior art electronic component 1 (i.e., the electronic component 1 shown in FIG. 1), the electronic component 1 in FIG. 1 is schematically shown by a dashed line in FIGS. 2-8.

[0039] In order to solve the problem that the two end portions may be in conduction with each other and short circuit, the inventor made the following attempt, as shown in FIG. 2, the length of the main body portion 110 of the electrode layer 11 connected with the first end portion 111 is elongated, so that the first end portion 111 is away from the second end portion 112, thereby increasing the distance between the first end portion 111 and the second end portion 112. Although this way can increase the distance between the first end portion 111 and the second end portion 112, it will increase the overall size of the electronic component 1, which is not conducive to the miniaturization design of the electronic component 1, and further not conducive to the application of the electronic component 1 in the miniaturized terminal device.

[0040] In order to take into account the miniaturization design of the electronic component 1, the inventor made other attempts, as shown in FIG. 3, the inventor tried to make the overall line width of the electrode layer 11 smaller, that is, the distance between the first end portion 111 and the second end portion 112 can be increased without increasing the overall size of the electronic component 1. However, the narrowing of the overall line width of the electrode layer 11 will result in too large overall direct current resistance of the electrode layer 11, which will seriously affect the service life of the electrode layer 11, and also is not conducive to its application in the terminal device.

[0041] Based on the above, the inventor further thought of other methods, as shown in FIG. 4, the inventor tried to shorten the length of the main body part 110 of the electrode layer 11 connected with the second end part 112, so that the second end part 112 is away from the first end part 111, thereby increasing the distance between the first end part 111 and the second end part 112. However, the inventor found through testing that although this way does not increase the overall size of the electronic component 1, nor does it increase the direct current resistance of the electrode layer 11, that is, this way can take into account miniaturization, heat dissipation considerations, but under this way, the effective coil area of the electrode layer 11 is reduced, which seriously affects the inductance of the electronic component 1.

[0042] That is, in the related art, in order to enable the electronic component 1 to have more inductance, the inventor has tried various ways to solve the problem of short circuiting of the two end parts of the electrode layer 11, but no matter which way is tried, it is difficult to take into account the requirements of miniaturization, heat dissipation effect and inductance of the electronic component 1.

[0043] Therefore, the present application increases the distance between the first end part 111 and the second end part 112 in the second direction by making at least part of the first end part 111 have a width smaller than the first width, and / or at least part of the second end part 112 have a width smaller than the first width, so as to take into account the miniaturization design of the electronic component 1, and take into account the direct current resistance and effective coil area of the electrode layer 11.

[0044] The technical solutions of the present application will be further described below in conjunction with embodiments and drawings.

[0045] Please refer to FIGS. 5 to 7, the first aspect of the embodiment of the present application provides an electronic component 1, the electronic component 1 includes a dielectric layer 10 and an electrode layer 11, the electrode layer 11 is arranged on the dielectric layer 10, the electrode layer 11 includes a main body part 110, a first end part 111 and a second end part 112, the first end part 111 and the second end part 112 are respectively connected to the two ends of the main body part 110 to jointly enclose an inductance region. The first end part 111 and the second end part 112 are arranged in extension along a first direction X, and are arranged opposite and spaced apart in a second direction Y, the width of the main body part 110 in the line width direction is a first width, at least part of the first end part 111 in the line width direction has a width smaller than the first width, and / or at least part of the second end part 112 in the line width direction has a width smaller than the first width, so as to increase the distance between the first end part 111 and the second end part 112 in the second direction Y, wherein the first direction X is perpendicular to the second direction Y.

[0046] It can be understood that the first direction X can be perpendicular to the line width direction of the first end portion 111 and the second end portion 112, and the second direction Y can be the line width direction of the first end portion 111 and the second end portion 112. The above directions are only examples for easy understanding, and do not limit the scope of the application.

[0047] The electronic component 1 provided by the first aspect of the embodiment of the application can increase the distance between the first end portion 111 and the second end portion 112 by making the width of the first end portion 111 in the line width direction thereof and / or the width of the second end portion 112 in the line width direction thereof less than the first width, so that there is a sufficient safety distance between the first end portion 111 and the second end portion 112. In the case where the phenomenon of silver migration occurs between the first end portion 111 and the second end portion 112 in a high-temperature load environment, the first end portion 111 and the second end portion 112 can be prevented from being in conduction with each other to cause short circuit. At the same time, the scheme of the application does not need to adjust the line width of the main body portion 110 of the electrode layer 11 as a whole, that is, the line width of the main body portion 110 is not changed, but the width of the first end portion 111 of the electrode layer 11 in the line width direction thereof and / or the width of the second end portion 112 of the electrode layer 11 in the line width direction thereof are made less than the width of the main body portion 110. Therefore, this way will not reduce the effective coil area of the electronic component 1, and since this way adjusts the width of the local position of the electrode layer 11, the influence on the overall direct current resistance of the electrode layer 11 is relatively small, so that the case of serious heating of the electrode layer 11 is avoided.

[0048] That is, the electronic component 1 of the application balances between the overall direct current resistance and the effective coil area of the electrode layer 11 on the basis of considering the miniaturized design of the electronic component 1, so that the electronic component 1 can realize the miniaturized design while having sufficient effective coil area and good heat dissipation effect, and thus the electronic component 1 can play its inductance role.

[0049] In order to avoid the mutual conduction between the first end portion 111 and the second end portion 112, the first end portion 111 and the second end portion 112 should be insulating medium. Alternatively, the insulating medium can be air, and the insulating medium can also be additional filled insulating material, which can be selected according to actual conditions, and is not limited in the embodiment.

[0050] When the insulating medium is an additional insulating material, due to the inconsistency of the shrinkage temperature and rate of the material of the electrode layer 11 and the material of the insulating medium, the insulating medium between the first end portion 111 and the second end portion 112 will be subjected to tensile stress of the electrode layer 11 during the sintering process of the electronic component 1, and the insulating material may be pulled apart to generate crack defects. By filling the insulating medium between the first end portion 111 and the second end portion 112 through the screen printing process in the electronic component 1 provided by the first aspect of the embodiment, the ink amount of the insulating medium is increased, so that the density of the insulating medium between the first end portion 111 and the second end portion 112 is increased, the structural strength of the insulating medium itself is improved, thereby reducing the occurrence of crack defects caused by the insulating medium being pulled apart during the sintering process, and further facilitating the avoidance of the occurrence of short circuit between the first end portion 111 and the second end portion 112 under high temperature load.

[0051] For the increase of the distance between the first end portion 111 and the second end portion 112 in the second direction Y, the following methods can be used, which will be described below.

[0052] In the first example, as shown in FIG. 5, the width of at least part of the first end portion 111 is smaller than the width of the main body portion 110, so as to increase the distance between the first end portion 111 and the second end portion 112 in the second direction Y. That is, in the case where the line width of the main body portion 110 and the second end portion 112 is unchanged, at least part of the first end portion 111 on the side facing the second end portion 112 is narrowed in line width compared with the main body portion 110. In other words, at least part of the first end portion 111 on the side facing the second end portion 112 is away from the second end portion 112 in the second direction Y, so that the distance between the narrowed part of the first end portion 111 and the second end portion 112 in the second direction Y is increased. In this way, the distance between the first end portion 111 and the second end portion 112 in the second direction Y can be increased by adjusting the line width of the first end portion 111, so as to avoid the short circuit between the first end portion 111 and the second end portion 112 under high temperature load, and the effective coil area of the electronic component 1 will not be reduced, and the influence on the overall direct current resistance of the electrode layer 11 is relatively small.

[0053] In the second example, as shown in FIG. 6, the width of at least part of the second end portion 112 is smaller than the width of the main body portion 110, so that the distance between the first end portion 111 and the second end portion 112 in the second direction Y is increased. That is, in the case where the line width of the main body portion 110 and the first end portion 111 is not changed, at least part of the second end portion 112 is narrowed in line width toward the side of the first end portion 111 compared with the main body portion 110. In other words, at least part of the second end portion 112 is arranged farther apart in the second direction Y compared with the first end portion 111, so that the distance between the narrowed part of the second end portion 112 and the first end portion 111 in the second direction Y is increased. In this way, the distance between the first end portion 111 and the second end portion 112 in the second direction Y can be increased by adjusting the line width of the second end portion 112, so that the short circuit between the first end portion 111 and the second end portion 112 due to the conduction therebetween under a high-temperature load environment can be avoided, and the effective coil area of the electronic component 1 is not reduced, and the influence on the overall direct-current resistance of the electrode layer 11 is relatively small.

[0054] In the third example, as shown in FIG. 7, the width of at least part of the first end portion 111 is smaller than the width of the main body portion 110, and the width of at least part of the second end portion 112 is smaller than the width of the main body portion 110, so that the distance between the first end portion 111 and the second end portion 112 in the second direction Y is increased, that is, at least part of the first end portion 111 is narrowed in line width toward the side of the second end portion 112 compared with the main body portion 110, and at least part of the second end portion 112 is also narrowed in line width toward the side of the first end portion 111 compared with the main body portion 110. In other words, at least part of the first end portion 111 is arranged farther apart in the second direction Y compared with the second end portion 112, and at least part of the second end portion 112 is arranged farther apart in the second direction Y compared with the first end portion 111, so that the distance between the narrowed part of the first end portion 111 and the narrowed part of the second end portion 112 in the second direction Y is increased. In this way, the distance between the first end portion 111 and the second end portion 112 in the second direction Y is increased, but since the first end portion 111 and the second end portion 112 are narrowed at the same time compared with the main body portion 110, compared with the first example and the second example, the distance between the first end portion 111 and the second end portion 112 in the second direction Y is larger, but the overall direct-current resistance of the electrode layer 11 of the electronic component 1 is slightly larger.

[0055] In the electrode layer 11, the main body portion 110, the first end portion 111, and the second end portion 112 generally enclose a ring-shaped structure, i.e., the inductance region is a ring-shaped region, and generally, one of the first end portion 111 and the second end portion 112 is disposed outside the inductance region, and the other is disposed inside, i.e., when the first end portion 111 and the second end portion 112 are disposed opposite to each other, one of them is disposed outside the other.

[0056] Hereinafter, the first end portion 111 is disposed outside, and the second end portion 112 is disposed inside, as an example.

[0057] In some embodiments, when the width of at least a portion of the first end portion 111 is less than the first width, the entire width of the first end portion 111 can be less than the first width, or a portion of the first end portion 111 can have a width less than the first width, and another portion can have a width equal to the first width.

[0058] For example, when the entire width of the first end portion 111 is less than the first width, the surface of the first end portion 111 that forms a spacing with the second end portion 112 can be a bevel that is inclined from the end of the first end portion 111 connected to the main body portion 110 to the end of the first end portion 111 away from the main body portion 110, so that the first end portion 111 gradually moves away from the second end portion 112 in the second direction Y to increase the distance between the first end portion 111 and the second end portion 112.

[0059] For example, when the width of at least a portion of the first end portion 111 is less than the first width, the first end portion 111 can have a first portion 111a, and the first portion 111a can have a first surface 1110 that forms a spacing with the second end portion 112, and the first surface 1110 can be a flat surface, and the first surface 1110 is disposed away from the second end portion 112 in the second direction Y, so that the width of the first portion 111a in the line width direction is less than the first width. In this way, by disposing the first surface 1110 away from the second end portion 112 in the second direction Y, the width of the first portion 111a in the line width direction is narrowed, and the value of the narrowing is the same as the value of the increase in the distance between the first end portion 111 and the second end portion 112 in the second direction Y. In addition, the first surface 1110 is a flat surface, which can make the entire width of the first portion 111a uniform, so that the heating of the first portion 111a is more uniform, and the working state of the electronic component 1 is more stable.

[0060] Optionally, in the first direction X, the length of the second end portion 112 is less than the length of the first end portion 111, i.e., the length of the first end portion 111 is greater than the length of the second end portion 112, and the length of the first portion 111a matches the length of the second end portion 112. In this way, the portion of the first end portion 111 facing the second end portion 112 is the portion of the first end portion 111 with a narrowed width, and the portion of the first end portion 111 with a narrowed width can be maximally utilized, the length of the portion of the first end portion 111 with a narrowed width is reduced, and thus the influence on the overall direct current resistance of the electrode layer 11 is reduced.

[0061] On the basis of the above, the first end portion 111 further includes a second portion 111b connected between the first portion 111a and the main body portion 110, and at least a portion of the side of the second portion 111b close to the second end portion 112 is configured as a transition surface 1111 in the first direction X, and the distance between the transition surface 1111 and the second end portion 112 in the second direction Y gradually increases in the direction of the second portion 111b pointing to the first portion 111a. In this way, by configuring at least a portion of the side of the second portion 111b close to the second end portion 112 as the transition surface 1111, while achieving the narrowed width of the first portion 111a relative to the second portion 111b, the stress concentration at the connection between the first portion 111a and the second portion 111b is avoided, the structural strength of the electrode layer 11 itself is not affected, and the effective coil area of the electrode layer 11 is improved.

[0062] In some embodiments, the portion of the second portion 111b close to the second end portion 112 is configured as the transition surface 1111, and the width of the remaining portion of the second portion 111b is equal to the width of the main body portion 110. In this way, the width of the portion of the second portion 111b on which the transition surface 1111 is not provided is equal to the width of the main body portion 110, the influence of the provision of the first portion 111a and the transition surface 1111 on the overall width of the first end portion 111 is minimized, the overall direct current resistance of the first end portion 111 is not excessively large, and thus the situation of local overheating is avoided.

[0063] In some embodiments, the first width is D1, and the second portion 111b has a length L1 of the portion of the transition surface 1111 in the first direction X, satisfying the relationship: 0.5D1≤L1≤1.5D1. In one aspect, the transition surface 1111 can have sufficient length in the first direction X, avoiding a large stress concentration at the connection between the first portion 111a and the second portion 111b, affecting the structural strength of the electrode layer 11 itself, while being able to improve the effective coil area of the electrode layer 11. On the other hand, the length of the transition surface 1111 in the first direction X can also not be too large, avoiding a large impact on the overall width of the first end portion 111 due to the length of the transition surface 1111 in the first direction X being too large, thereby causing the DC resistance of the first end portion 111 to be too large.

[0064] In some embodiments, along the second direction Y, the second end portion 112 has a second surface 1120 and a third surface 1121, the second surface 1120 being a surface close to the first end portion 111, the second surface 1120 being a plane, and the third surface 1121 being disposed close to the second surface 1120 along the second direction Y, so that the width of the second end portion 112 is less than the first width. That is, the width of the side of the second end portion 112 away from the first end portion 111 is narrowed. In this way, the effective coil area of the electrode layer 11 can be improved to some extent without the DC resistance of the second end portion 112 being too large.

[0065] In some embodiments, the first surface 1110 and the second surface 1120 are disposed in parallel and are both perpendicular to the second direction Y. In this way, the distance between the first surface 1110 and the second surface 1120 at each position corresponding to the second direction Y is equal, that is, the distance between the first portion 111a of the first end portion 111 and the second end portion 112 in the second direction Y is equal, which can further reduce the impact on the overall DC resistance of the electrode layer 11 while ensuring that the first end portion 111 and the second end portion 112 have sufficient safety distance.

[0066] In other embodiments, the first surface 1110 and the second surface 1120 can also be disposed intersecting, that is, the first surface 1110 and the second surface 1120 can be disposed at an angle.

[0067] Considering the width of the main body portion 110, the first end portion 111, and the second end portion 112, which affects the effective coil area and the overall DC resistance of the electrode layer 11, the width and length of the main body portion 110, the first end portion 111, and the second end portion 112 are considered in the present application, which will be described below.

[0068] Optionally, the first width is D1, the width of the first end portion 111 is D2, and the following relationship is satisfied: 0.6D1≤D2≤0.9D1. For example, D2 can be equal to 0.6D1, 0.7D1, 0.8D1, or 0.9D1, etc.

[0069] Optionally, the first width is D1, the width of the second end portion 112 is D3, and the following relationship is satisfied: 0.6D1≤D3≤0.9D1. For example, D3 can be equal to 0.6D1, 0.7D1, 0.8D1, or 0.9D1, etc.

[0070] In this way, on the one hand, the width of the first end portion 111 and the second end portion 112 can not be too small, avoiding the situation that the local DC resistance of the first end portion 111 and the second end portion 112 is too large due to the small width of the first end portion 111 and the second end portion 112, thereby avoiding the situation that the first end portion 111 and the second end portion 112 are seriously heated. On the other hand, the width of the first end portion 111 and the second end portion 112 can not be too large, ensuring that the distance between the first end portion 111 and the second end portion 112 in the second direction Y is large enough, thereby avoiding the situation that the first end portion 111 and the second end portion 112 are short-circuited due to mutual conduction.

[0071] Optionally, the first width is D1, and the distance between the first end portion 111 and the second end portion 112 in the second direction Y is H1, and the following relationship is satisfied: 0.3D1≤H1≤0.7D1. For example, H1 can be equal to 0.3D1, 0.4D1, 0.5D1, 0.6D1, or 0.7D1, etc.

[0072] In this way, on the one hand, the distance between the first end portion 111 and the second end portion 112 can be large, thereby avoiding the situation that the first end portion 111 and the second end portion 112 are short-circuited due to mutual conduction. On the other hand, the distance between the first end portion 111 and the second end portion 112 can not be too large, thereby avoiding the situation that the effective coil area of the electronic component 1 is excessively affected, and avoiding the situation that the width of the first end portion 111 and the second end portion 112 is excessively reduced, thereby causing the local DC resistance of the first end portion 111 and the second end portion 112 to be too large.

[0073] Optionally, the first width is D1, the width of the first end portion 111 is D2, the width of the second end portion 112 is D3, and the distance between the first end portion 111 and the second end portion 112 in the second direction Y is H1, and the following relationship is satisfied: 1.5D1≤D2+D3+H1≤2.5D1. For example, D2+D3+H1 can be equal to 1.5D1, 1.7D1, 2D1, 2.3D1, 2.5D1, or the like, and D2, D3, and H1 can be designed according to actual conditions, for example, when D2+D3+H1 is equal to 2D1, D2 can be equal to 0.8D1, D3 can be equal to 0.8D1, and H1 can be equal to 0.4D1.

[0074] That is, the following relationship is satisfied: 0.5D1≤D2+D3+H1-D1≤1.5D1, and D2+D3+H1-D1 is a relevant parameter affecting the effective coil area of the electrode layer 11. The larger the value of D2+D3+H1-D1, the smaller the effective coil area of the electrode layer 11, and the smaller the value of D2+D3+H1-D1, the larger the effective coil area of the electrode layer 11. By satisfying 0.5D1≤D2+D3+H1-D1≤1.5D1, on the one hand, the value of D2+D3+H1-D1 can be relatively small, reducing the impact on the effective coil area of the electrode layer 11. On the other hand, the value of D2+D3+H1-D1 cannot be too small, avoiding the situation that the width of the first end portion 111 and the width of the second end portion 112 are too small, causing the local direct current resistance to be too large, and avoiding the situation that the distance between the first end portion 111 and the second end portion 112 is too small, causing the first end portion 111 and the second end portion 112 to be in conduction with each other and short circuit.

[0075] In some embodiments, the first width is D1, and the length of the portion of the first end portion 111 opposite the second end portion 112 in the first direction X is L2, and the following relationship is satisfied: 1.8D1≤L2≤2.2D1. Since the first end portion 111 and the second end portion 112 are structures for realizing mutual conduction between different electrode layers 11, when 1.8D1≤L2≤2.2D1 is satisfied, the area of the first end portion 111 and the second end portion 112 can be ensured to stably electrically connect with the first end portion 111 and the second end portion 112 of other electrode layers 11. On the other hand, since the length of the second end portion 112 is another relevant parameter affecting the effective coil area of the electrode layer 11, the length of the second end portion 112 cannot be too large, reducing the impact on the effective coil area of the electrode layer 11. For example, L2 can be equal to 1.8D1, 2D1, 2.2D1, or the like.

[0076] Referring to FIG. 9, optionally, the material of the dielectric layer 10 can be ferrite material or ceramic material, which can be selected according to actual conditions, and is not limited in the embodiment.

[0077] Optionally, the number of the medium layer 10 and the electrode layer 11 can be one or more, which can be selected according to actual conditions, and is not specifically limited in the embodiment.

[0078] Optionally, the medium layer 10 and the electrode layer 11 in the embodiment can be used as an intermediate layer of the electronic component 1, the electrode layer 11 is an intermediate inner electrode layer, and the electronic component 1 further includes upper and lower layers provided with an outer electrode layer 12, the outer electrode layer 12 is used to connect with other electronic elements.

[0079] Referring to FIG. 10, the dashed line in FIG. 10 schematically shows that the electronic component 1 is located inside the terminal device 2. The second aspect of the embodiment of the present application provides a terminal device 2, which includes the electronic component 1 of the first aspect of the above embodiment.

[0080] The terminal device 2 provided by the second aspect of the embodiment of the present application can have a sufficient safety distance between the first end portion 111 and the second end portion 112, because the terminal device 2 adopts the electronic component 1 of the first aspect of the embodiment of the present application. When the phenomenon of silver migration occurs between the first end portion 111 and the second end portion 112 in a high-temperature load environment, the first end portion 111 and the second end portion 112 can be prevented from being mutually conducted to cause a short circuit. At the same time, the effective coil area of the electronic component 1 is not reduced, and the influence on the overall direct current resistance of the electrode layer 11 is relatively small, so that the electrode layer 11 is prevented from being seriously heated.

[0081] Optionally, the terminal device 2 includes, but is not limited to, a smart phone, a wearable device, a drone, an electric vehicle, an electric cleaning tool, an energy storage product, an electric vehicle, an electric bicycle, an electric navigation tool, etc., which can be selected according to actual conditions, and is not specifically limited in the embodiment.

[0082] The electronic component and the terminal device disclosed in the embodiment of the present application are described in detail above, and the principle and implementation manner of the present application are described by applying specific examples in the text. The above description of the embodiments is only used to help understand the electronic component and the terminal device and the core idea thereof; meanwhile, for those skilled in the art, the specific implementation manner and application range can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application. The content of the specification is entered here.

Claims

1. An electronic component, characterized by, The electronic component comprises: a dielectric layer; and an electrode layer disposed on the dielectric layer, the electrode layer comprising a main body portion, a first end portion and a second end portion, the first end portion and the second end portion being connected to two ends of the main body portion respectively to jointly enclose an inductance region, the first end portion and the second end portion being disposed in extension along a first direction and being disposed in opposition and in interval along a second direction. A width of the main body portion along a line width direction thereof is a first width, a width of at least part of the first end portion along a line width direction thereof is less than the first width, and / or a width of at least part of the second end portion along a line width direction thereof is less than the first width, so that a distance between the first end portion and the second end portion along the second direction is increased. The first direction is perpendicular to the second direction.

2. The electronic component according to claim 1, characterized in that, When the width of at least part of the first end portion is less than the first width, the first end portion has a first portion having a first surface spaced apart from the second end portion, the first surface being a plane, and the first surface being disposed away from the second end portion along the second direction, so that the width of the first portion along the line width direction thereof is less than the first width.

3. The electronic component according to claim 2, characterized in that, In the first direction, a length of the second end portion is less than a length of the first end portion, and a length of the first portion is adapted to the length of the second end portion.

4. The electronic component according to claim 3, wherein the first end portion further comprises a second portion connected between the first portion and the main body portion, at least part of a side of the second portion close to the second end portion in the first direction is configured as a transition surface, and a distance between the transition surface and the second end portion along the second direction gradually increases in a direction of the second portion pointing to the first portion.

5. The electronic component according to claim 4, characterized in that, The first width is D1, a length of a portion of the second portion having the transition surface in the first direction is L1, and a relationship 0.5D1≤L1≤1.5D1 is satisfied, and / or in the first direction, a length of a portion of the first end portion opposite to the second end portion is L2, and a relationship 1.8D1≤L2≤2.2D1 is satisfied.

6. The electronic component according to any one of claims 1 to 4, characterized in that, The first width is D1, a width of the first end portion is D2, and a relationship 0.6D1≤D2≤0.9D1 is satisfied, and / or a width of the second end portion is D3, and a relationship 0.6D1≤D3≤0.9D1 is satisfied.

7. The electronic component according to any one of claims 1 to 4, characterized by The first width is D1, and a distance between the first end portion and the second end portion in the second direction is H1, and a relationship 0.3D1≤H1≤0.7D1 is satisfied.

8. The electronic component according to any one of claims 1 to 4, characterized by The first width is D1, a width of the first end portion is D2, a width of the second end portion is D3, and a distance between the first end portion and the second end portion in the second direction is H1, and a relationship 1.5D1≤D2+D3+H1≤2.5D1 is satisfied.

9. The electronic component according to any one of claims 1 to 5, characterized by In the second direction, the second end portion has a second surface and a third surface, the second surface being a surface close to the first end portion, the second surface being a flat surface; The third surface is disposed close to the second surface in the second direction, such that the second end portion has a width smaller than the first width.

10. A terminal device, comprising: The terminal device comprises an electronic component as claimed in any of claims 1-9.

Images