CN210896936U - Inductance element and electronic equipment - Google Patents

Abstract

The utility model provides an inductance element and an electronic device. The inductance element comprises a magnetic core body, a first coil, a second coil, a first outer electrode layer, a second outer electrode layer and a third outer electrode layer. The second coil is embedded in the magnetic core body, the first outer electrode layer, the second outer electrode layer and the third outer electrode layer are arranged on the first side of the magnetic core body, the first end of the first coil and the first outer electrode layer Electrically connected, the first end of the second coil is electrically connected to the second outer electrode layer, and the second end of the first coil and the second end of the second coil are electrically connected through the third outer electrode layer. The inductance element provided by the utility model realizes that one inductance element has two coils connected in series, which improves the large current capability of the inductance element, so that the inductance element can meet the large current demand of the circuit, thereby improving the working performance of the electronic equipment.

Description

An inductive element and electronic equipment

technical field

The utility model relates to the field of electronic technology, in particular to an inductive element and an electronic device.

Background technique

With the rapid development of wireless communication technology, electronic devices such as mobile phones and tablet computers are becoming more and more popular and become an indispensable part of people's daily life. Among them, in order to meet people's more and more functional requirements for electronic equipment, the layout of electronic components in electronic equipment is getting closer and closer, and the demand for high current is also becoming stronger and stronger, and the inductance components installed in electronic equipment need to be It has the ability to supply large currents of several amperes or even tens of amperes. However, the current miniaturized and thinned single inductor has gradually been unable to meet the high current requirements of the electronic device, which will lead to a decrease in the working performance of the electronic device. It can be seen that there is a problem that the working performance of the current electronic equipment is degraded because the inductive element cannot meet the high current demand.

Utility model content

The embodiments of the present invention provide an inductance element and an electronic device, so as to solve the problem that the working performance of the current electronic device is degraded because the inductance element cannot meet the demand of large current.

In order to solve the above-mentioned problems, the embodiments of the present utility model are implemented as follows:

In a first aspect, an embodiment of the present invention provides an inductance element, which is applied to electronic equipment, including a magnetic core body, a first coil, a second coil, a first outer electrode layer, a second outer electrode layer, and a third outer electrode layer , the first coil and the second coil are embedded in the magnetic core body, and the first outer electrode layer, the second outer electrode layer and the third outer electrode layer are arranged in the magnetic core the first side of the core body, the first end of the first coil is electrically connected to the first outer electrode layer, the first end of the second coil is electrically connected to the second outer electrode layer, and the The second end of the first coil and the second end of the second coil are electrically connected through the third outer electrode layer.

In a second aspect, an embodiment of the present invention further provides an electronic device including the above-mentioned inductive element.

The inductance element of the embodiment of the present invention includes a magnetic core body, a first coil, a second coil, a first outer electrode layer, a second outer electrode layer and a third outer electrode layer. The first coil and the second coil are embedded in the magnetic In the core body, the first outer electrode layer, the second outer electrode layer and the third outer electrode layer are arranged on the first side of the magnetic core body, the first end of the first coil is electrically connected to the first outer electrode layer, and the second coil is electrically connected to the first outer electrode layer. The first end of the coil is electrically connected to the second outer electrode layer, and the second end of the first coil and the second end of the second coil are electrically connected through the third outer electrode layer, so that an inductance element can be realized with two coils connected in series , to improve the large current capability of the inductive element, so that the inductive element can meet the large current demand of the circuit, thereby improving the working performance of the electronic device.

Description of drawings

Fig. 1 is one of the structural schematic diagrams of the inductance element provided by the embodiment of the present invention;

Fig. 2 is the second structural schematic diagram of the inductance element provided by the embodiment of the present invention;

3 is a third schematic structural diagram of an inductance element provided by an embodiment of the present invention;

FIG. 4 is a fourth schematic structural diagram of an inductance element provided by an embodiment of the present invention;

FIG. 5 is a fifth structural schematic diagram of an inductance element provided by an embodiment of the present invention;

FIG. 6 is a sixth schematic structural diagram of an inductance element provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, not all of the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to FIG. 1 to FIG. 3 , this embodiment provides an inductance element, which is applied to an electronic device. The inductance element includes a magnetic core body 10 , a first coil 20 , a second coil 30 , a first outer electrode layer 40 , a The second outer electrode layer 50 and the third outer electrode layer 60, the first coil 20 and the second coil 30 are embedded in the magnetic core body 10, the first outer electrode layer 40, the second outer electrode layer 40 The outer electrode layer 50 and the third outer electrode layer 60 are disposed on the first side surface 11 of the magnetic core body 10 , and the first end of the first coil 20 is electrically connected to the first outer electrode layer 40 , so The first end of the second coil 30 is electrically connected to the second outer electrode layer 50, and the second end of the first coil 20 and the second end of the second coil 30 pass through the third outer electrode Layer 60 is electrically connected.

Here, the inductance element is provided with a first coil 20 and a second coil 30, and the first coil 20 and the second coil 30 can be connected in series through the outer electrode layer, so that one inductance element has two coils connected in series, and the inductance element is improved. High current capability, so that the inductive element can meet the high current demand of the circuit, thereby improving the working performance of electronic equipment.

In this embodiment, the above-mentioned magnetic core body 10 may be a structure with high magnetic permeability and high magnetic flux density, and the above-mentioned magnetic core body 10 may be made of magnetic alloy material (such as manganese-zinc ferrite or nickel-zinc iron Oxygen, etc.) or amorphous materials (such as iron-based amorphous alloys or iron-nickel-based amorphous alloys) and the like.

In addition, the shape and size of the magnetic core body 10 can be set according to actual needs, and the magnetic core body 10 at least includes the first side 11 and the second side 12, and the first coil 20 and the second coil 30 are set. Between the first side surface 11 and the second side surface 12, the first external electrode layer 40, the second external electrode layer 50 and the third external electrode layer 60 are arranged on the first side surface 11. Specifically, the above-mentioned magnetic core body 10 may be A cylindrical or rectangular magnetic core body 10 including a first side 11 and a second side 12 .

In this embodiment, the first coil 20 and the second coil 30 may be formed by winding wires, and the first coil 20 and the second coil 30 may be copper enameled coils or the like. Specifically, at least one of the first coil 20 and the second coil 30 includes a plurality of sub-coils 21 connected in series. Optionally, the plurality of sub-coils 21 are arranged on the magnetic core body 10 in an array. in order to improve the performance of the inductive element.

Wherein, the first coil 20 and the second coil 30 are embedded in the magnetic core body 10, and the first coil 20 and the second coil 30 may be stacked in the direction from the first side 11 to the second side 12; or, The central axis of the first coil 20 and the central axis of the second coil 30 are parallel, and the plane on which the central axis of the first coil 20 and the central axis of the second coil 30 are located is perpendicular to the first coil. One side surface 11, so that the thickness of the inductive element can be reduced.

In addition, the first end of the first coil 20 is electrically connected to the first outer electrode layer 40, the first end of the second coil 30 is electrically connected to the second outer electrode layer 50, and the first The second end of the coil 20 and the second end of the second coil 30 are electrically connected through the third outer electrode layer 60 , that is, the first coil 20 is electrically connected to the first outer electrode layer 40 and the third outer electrode layer 60 , the second coil 30 is electrically connected to the second outer electrode layer 50 and the third outer electrode layer 60 .

It should be noted that, in the case where the coil of the inductance element is composed of only the first coil 20 and the second coil 30, the first coil 20 and the second coil 30 pass through the first outer electrode layer 40 and the second outer electrode The layer 50 is electrically connected to other circuits of the electronic device, that is, the first external electrode layer 40 and the second external electrode layer 50 are soldered on the circuit board connected to the external circuit; and the above-mentioned third external electrode layer 60 is used to connect the first coil 20 connected in series with the second coil 30 .

The above inductance element may also be provided with more than two coils. Specifically, the inductance element further includes a third coil and a fourth outer electrode layer, and the first end of the third coil is connected to the fourth outer electrode layer. Electrical connection, the second end of the third coil and the first end of the second coil 30 are electrically connected through the second outer electrode layer 50, here, the inductance element can be through the first outer electrode layer 40 and the fourth The outer electrode layer is electrically connected to the circuit board, and the first coil 20 , the second coil 30 and the third coil are connected in series through the second outer electrode layer 50 and the third outer electrode layer 60 , thereby further improving the large current capability of the inductance element , thereby improving the stability of electronic equipment.

Of course, the above-mentioned inductive element can also be provided with more coils connected in series, and the realization principle is similar to that of the above-mentioned inductive element with three coils (ie, the first coil 20 , the second coil 30 and the third coil). This will not be repeated.

In addition, each of the above-mentioned external electrode layers (including the first external electrode layer 40, the second external electrode layer 50, the third external electrode layer 60 and the fourth external electrode layer) can be any provided on the first side surface 11 and has excellent Electrode layers with electrical conductivity, specifically, in the first outer electrode layer 40 , the second outer electrode layer 50 and the third outer electrode layer 60 , each electrode layer includes an electroplating metal layer stacked in sequence 41 (such as electroplated copper layer or silver glue layer), electroplated nickel layer 42 and electroplated tin layer 43, the electroplated metal layer 41 is attached to the first side surface 11 and is electrically connected to the corresponding coil, thereby enhancing each external electrode layer performance.

In this embodiment, since the inductance element is provided with at least two coils, the inductance element will generate higher magnetic field radiation during operation, which will affect the operation of other elements around the inductance element, and the magnetic field radiation generated by other elements It may also affect the operation of the inductive element.

In some embodiments, as shown in FIG. 4 , the inductance element further includes a first metal shield 71 , and the first metal shield 71 covers a second portion of the magnetic core body 10 away from the first side surface 11 . On the side 12, by setting a metal shield on the second side 12 of the magnetic core body 10, the magnetic field radiated from the inductance element to the outside and the magnetic field radiated to the inductance element from the outside can be reduced, thereby reducing the influence of the inductance element on the work of other elements. In addition, by arranging the first metal shielding member 71 , the second side surface 12 of the magnetic core body 10 can also be protected from external stress, thereby reducing the possibility of damage to the magnetic core body 10 .

Wherein, the above-mentioned inductance element may only be provided with a metal shielding layer on the second side surface 12 of the above-mentioned magnetic core body 10; or, in some embodiments, as shown in FIG. The second metal shield covers the sides of the magnetic core body 10 except the first side 11 and the second side 12, which further improves the shielding performance of the electronic components, thereby reducing the work of the inductance element on other components and improve the performance of the inductive components.

In addition, the above-mentioned first metal shielding member 71 covers the second side surface 12, which can be realized by plating, that is, the first metal shielding member 71 is a metal layer plated on the second side surface 12, so as to improve the first metal shielding member 71. The firmness of the connection between a metal shielding member 71 and the magnetic core body 10; alternatively, as shown in FIG. 6, the first metal shielding member 71 may also be adhered to the second side surface 12. It also includes a heat-resistant adhesive layer 80 , the heat-resistant adhesive layer 80 is arranged between the first metal shielding member 71 and the second side surface 12 , so as to connect the first metal shielding member 71 and the magnetic core body 10 way more flexible.

Of course, the arrangement of the second metal shielding member 72 is similar to that of the first shielding member, and details are not described herein again.

It should be noted that the above-mentioned metal shielding member can be any metal member with shielding performance, for example, can be a metal layer made of nickel or copper; 270°C or higher), which is not limited here.

Based on the above-mentioned inductive element, an embodiment of the present invention further provides an electronic device including the above-mentioned inductive element.

Since the structure of the electronic device body is in the prior art, and the inductive element has been described in detail in the above embodiments, the structure of the specific electronic device will not be repeated in this embodiment.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides an inductance element, is applied to electronic equipment, its characterized in that, includes magnetic core body, first coil, second coil, first outer electrode layer, second outer electrode layer and third outer electrode layer, first coil with the second coil inlays to be located in the magnetic core body, first outer electrode layer, second outer electrode layer and third outer electrode layer set up in the first side of magnetic core body, the first end of first coil with first outer electrode layer electricity is connected, the first end of second coil with second outer electrode layer electricity is connected, and the second end of first coil with the second end of second coil passes through third outer electrode layer electricity is connected.

2. The inductive element of claim 1, further comprising a first metallic shield covering a second side of the magnetic core body distal from the first side.

3. The inductive element of claim 2, further comprising a second metallic shield covering sides of the magnetic core body other than the first side and the second side.

4. The inductive element of claim 2, wherein the first metallic shield is a metallic layer plated on the second side.

5. The inductive element of claim 2, further comprising a heat resistant glue layer disposed between the first metallic shield and the second side.

6. The inductance element according to claim 1, wherein each of the first, second and third outer electrode layers comprises a metal plating layer, a nickel plating layer and a tin plating layer sequentially stacked, and the metal plating layer is attached to the first side surface and electrically connected to the corresponding coil.

7. The inductance element according to claim 1, further comprising a third coil and a fourth outer electrode layer, wherein a first end of said third coil is electrically connected to said fourth outer electrode layer, and a second end of said third coil and a first end of said second coil are electrically connected through said second outer electrode layer.

8. The inductance element according to claim 1, wherein the central axis of said first coil and the central axis of said second coil are parallel, and a plane in which the central axis of said first coil and the central axis of said second coil are located is perpendicular to said first side surface.

9. The inductive element of claim 1, wherein the first coil and/or the second coil comprises a plurality of sub-coils connected in series, and wherein the plurality of sub-coils are arranged in an array within the core body.

10. An electronic device, characterized in that the electronic device comprises an inductive element according to any one of claims 1 to 9.

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