Inductor

Abstract

The utility model belongs to the technical field of electronic components, and discloses an inductor. The inductor comprises a magnet and a winding, the winding comprises at least three winding parts, the winding parts are embedded in the magnet, in the winding, every two winding parts are connected with each other to form a corresponding electrical conduction structure, the volumes of the magnets wrapped by the electrical conduction structures are different, and different inductance values are correspondingly generated; one end of each winding part extends out of the magnet and is exposed to form a first exposed surface, and the first exposed surface is used as a wiring end. In a plurality of electrical conduction structures of the inductor, the electrical conduction structure matched with the inductance value required by the circuit can be selected, and the circuit is connected with the two corresponding wiring terminals, so that the performance requirement of the circuit is met. The circuit can be applied to different circuits, and provides inductance values or responses matched with the circuits, so that the application range is widened, and the heat dissipation effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component technical field especially relates to a inductor. BACKGROUND

[0002] Inductor is an indispensable component in modern electronic equipment, which plays a variety of important roles in circuit design, from basic filtering and energy storage to complex frequency selection and impedance matching. Inductor will produce electromotive force due to the change of current passing through, thereby resisting the change of current, and is generally composed of framework, winding, shield cover, packaging material, magnetic core or iron core, etc. When there is no current passing through the inductor, if the circuit is connected, the inductor will try to hinder the passage of current. When there is current passing through the inductor, if the circuit is disconnected, the inductor will try to maintain the current unchanged.

[0003] With the continuous progress of technology, the performance and application field of inductor are also expanding. The current inductor is a two-terminal component with two outlet ports. The compact structure and high reliability make it widely used in modern electronic equipment. However, the inductance value of this kind of inductor is fixed, which can only be applied to specific circuits matching its inductance value and meet the specific frequency response requirements, and its main application scene is relatively single and the application range is relatively narrow. SUMMARY

[0004] The purpose of the utility model is to provide an inductor which can be applied in different circuits, providing inductance value or response matching the circuit, expanding the application scene and widening the application range, and having good heat dissipation effect.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] An inductor comprises:

[0007] A magnet,

[0008] A winding, the winding comprises at least three winding parts, the winding parts are embedded in the magnet, in the winding, every two winding parts are connected to each other to form a corresponding electric conduction structure, each electric conduction structure covers different volume of the magnet to correspondingly generate different inductance values; one end of each winding part extends out of the magnet and is exposed to form a first exposed surface, and the first exposed surface is used as a wiring terminal.

[0009] In some possible embodiments, in the winding, the position of at least one winding part relative to other winding parts is adjustable.

[0010] In some possible embodiments, in the winding, each winding part penetrates the same surface of the magnet.

[0011] In some possible implementation manners, each of the winding parts is further provided with a second exposed surface exposed outside the magnet.

[0012] In some possible implementation manners, the second exposed surface is arranged on the winding part close to the first exposed surface, and the second exposed surface is in communication with the first exposed surface.

[0013] In some possible implementation manners, the second exposed surface is flush with the outer surface of the magnet.

[0014] In some possible implementation manners, the winding parts are three, and each two of the winding parts are connected with each other and form three electric conduction structures, the three electric conduction structures cover different volumes of the magnet, and the three electric conduction structures are respectively a first electric conduction structure, a second electric conduction structure and a third electric conduction structure.

[0015] In some possible implementation manners, the winding parts are L-shaped structures, and the three first exposed surfaces corresponding to the three winding parts are respectively a first connecting terminal, a second connecting terminal and a third connecting terminal, the two winding parts corresponding to the first connecting terminal and the third connecting terminal are oppositely arranged and form the first electric conduction structure; the winding part corresponding to the second connecting terminal is arranged close to the winding part corresponding to the third connecting terminal and forms the second electric conduction structure with the winding part corresponding to the third connecting terminal; and the two winding parts corresponding to the first connecting terminal and the second connecting terminal are connected to form the third electric conduction structure.

[0016] In some possible implementation manners, the material of the winding part is copper.

[0017] In some possible implementation manners, the magnet and the winding part are integrally pressure cast.

[0018] The utility model discloses the beneficial effects of:

[0019] The inductor provided by the utility model, including magnet and winding, every two winding parts form electric conduction structure, because the volume of every electric conduction structure in the magnet is different, the magnetic flux surrounded by the electric conduction structure is different, then different inductance value or response can be corresponded respectively, because the demand of different circuit to inductance value is different, in the multiple electric conduction structures of inductor, the electric conduction structure matched with the inductance value required by the circuit can be selected, the circuit is connected with the corresponding two wiring terminal, to satisfy the performance demand of the circuit, the inductor of the utility model corresponds multiple different inductance value or response, can be applied in different circuit, provides the inductance value or response matched with the circuit, expands the application scene, widens the application range, in addition, when the circuit is connected with the matched electric conduction structure and works, the heat generated in the magnet can be radiated through the electric conduction structure matched with the circuit, also can be radiated through other winding part, the radiating effect is good, can make the inductor keep lower working temperature. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the inductor (magnet winding is shown) provided by the utility model;

[0021] Figure 2 It is the structural schematic diagram of the inductor (magnet winding is not shown) provided by the utility model;

[0022] Figure 3 It is the structural schematic diagram of the winding related by the utility model;

[0023] Figure 4 It is the structural schematic diagram of the magnet related by the utility model;

[0024] Figure 5 It is the schematic diagram of the magnet volume covered by the inductor provided by the utility model when the second electric conduction structure is communicated with external circuit;

[0025] Figure 6 It is the schematic diagram of the magnet volume covered by the inductor provided by the utility model when the third electric conduction structure is communicated with external circuit.

[0026] In the drawing:

[0027] 1, magnet;

[0028] 2, winding; 21, winding part; 211a, first wiring terminal; 211b, second wiring terminal; 211c, third wiring terminal; 212, second exposed surface. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0033] As Figures 1 to 4The utility model provides a kind of inductor, corresponding inductance value can be matched according to different working conditions, to optimize circuit performance, so that inductor provides specific filtering, coupling or energy storage function in more complex circuit, can provide specific impedance matching or filtering effect in high-frequency circuit.Inductor includes magnet 1 and winding 2, winding 2 includes at least three winding parts 21, winding part 21 is embedded in magnet 1, in winding 2, every two winding parts 21 are connected to each other, to form corresponding electric conduction structure, electric conduction structure is used for current passing, and the volume of each electric conduction structure is different from the volume of magnet 1, and different inductance values are correspondingly generated;The end of each winding part 21 is exposed to form a first exposed surface by extending out of magnet 1, and the first exposed surface is used as a terminal. Every two winding parts 21 form electric conduction structure, since the volume of each electric conduction structure in magnet 1 is different from the volume of magnet 1, the magnetic flux surrounded by electric conduction structure is different, and different inductance values or responses are correspondingly generated. Since the demand of different circuit for inductance value is different, in the multiple electric conduction structures of inductor, electric conduction structure matched with the inductance value required by circuit can be selected, and the circuit is connected with corresponding two terminals, i.e. the first exposed surface, to meet the performance requirement of circuit. One inductor of the utility model corresponds to multiple different inductance values or responses, and can be applied in different circuits, to provide inductance value or response matched with circuit, expand application scene, and widen application range. In addition, when circuit is connected with matched electric conduction structure and works, the heat generated in magnet 1 can be dissipated through electric conduction structure matched with circuit, or through other winding parts 21, with good heat dissipation effect, so that inductor can maintain low working temperature.

[0034] Optionally, in the embodiment, winding part 21 is provided with three, every two winding parts 21 are connected to each other, and three electric conduction structures are formed, the volume of three electric conduction structures is different from the volume of magnet 1, and the three electric conduction structures are first electric conduction structure, second electric conduction structure and third electric conduction structure respectively. By so arranging, the magnetic flux surrounded by three electric conduction structures is different, so that one inductor can provide three different inductance values or responses to meet the requirement of external circuit, and the structure is compact, and space is saved. In other embodiments, winding part 21 can be provided with four or more than four.

[0035] Specifically, in the embodiment, as shown in Figure 1As shown, the winding part 21 is in L-shaped structure, and the three first exposed surfaces corresponding to the three winding parts 21 are respectively the first connecting terminal 211a, the second connecting terminal 211b and the third connecting terminal 211c, the two winding parts 21 corresponding to the first connecting terminal 211a and the third connecting terminal 211c are oppositely arranged and form a first electric conduction structure; the winding part 21 corresponding to the second connecting terminal 211b is arranged close to the winding part 21 corresponding to the third connecting terminal 211c and forms a second electric conduction structure with the winding part 21 corresponding to the third connecting terminal 211c; the two winding parts 21 corresponding to the first connecting terminal 211a and the second connecting terminal 211b are connected to form a third electric conduction structure. When the external circuit is connected to the first connecting terminal 211a and the third connecting terminal 211c, the current flows from the first connecting terminal 211a to the third connecting terminal 211c through the first electric conduction structure, and the volume of the magnet 1 covered is as shown in Figure 2 ; when the second connecting terminal 211b and the third connecting terminal 211c are connected, the current flows from the second connecting terminal 211b to the third connecting terminal 211c through the second electric conduction structure, and the volume of the magnet 1 covered is as shown in Figure 5 ; when the first connecting terminal 211a and the second connecting terminal 211b are connected, the current flows from the first connecting terminal 211a to the second connecting terminal 211b through the third electric conduction structure, and the volume of the magnet 1 covered is as shown in Figure 6 . It should be noted that, Figure 5 the actual structure diagram of the inductor provided by the embodiment of the present application when the second electric conduction structure is in communication with the external circuit, Figure 5 only shows the part of the magnet covered when the second electric conduction structure is in communication with the external circuit; Figure 6 the actual structure diagram of the inductor provided by the embodiment of the present application when the third electric conduction structure is in communication with the external circuit, Figure 6 only shows the part of the magnet covered when the third electric conduction structure is in communication with the external circuit.

[0036] The winding part 21 is arranged in L-shaped structure, which facilitates the processing of the winding part 21, and the volume of the magnet 1 covered by the first electric conduction structure is greater than that of the third electric conduction structure, the volume of the magnet 1 covered by the third electric conduction structure is greater than that of the second electric conduction structure, and thus the inductance value corresponding to the first electric conduction structure is greater than that of the third electric conduction structure, and the inductance value corresponding to the third electric conduction structure is greater than that of the second electric conduction structure, so that one inductor provides three different inductance values or responses.

[0037] Optionally, in the embodiment, the material of the winding part 21 is copper, which has good electrical conductivity, can efficiently transmit electric energy and reduce energy loss, and has good thermal conductivity, so that heat can be effectively dissipated during work.

[0038] Optionally, in the embodiment, the magnet 1 and the winding 2 are integrally pressure cast. Specifically, the material for manufacturing the magnet 1 is alloy powder, the winding 2 and the alloy powder are placed in a mold, and then pressure cast so that the winding 2 and the alloy powder are integrally pressure cast. In this way, the process is simple, easy to automate, low cost, and tightly combines the winding 2 and the magnet 1, so that the inductor has high density characteristics and is small in size, saving space.

[0039] Optionally, in the winding 2, the position of at least one winding part 21 relative to other winding parts 21 is adjustable. When adjusting the position of the winding part 21, the magnetic flux surrounded by the electrically conductive structure changes due to the change in the position of the electrically conductive structure in the magnet 1, thereby generating a new and different inductance value or response, further expanding the application scenarios and widening the application range. In the embodiment, as shown in FIG. 2, the first terminal 211a and the third terminal 211c correspond to the winding parts 21 connected to form a U-shaped electrically conductive structure, and the winding part 21 corresponding to the second terminal 211b is adjustably arranged on the U-shaped electrically conductive structure along the length direction of the magnet 1. Specifically, the U-shaped electrically conductive structure is provided with a plurality of connecting holes along the length direction of the magnet 1, and the winding part 21 corresponding to the second terminal 211b is selectively connected to one of the connecting holes. Figure 1

[0040] Optionally, in the embodiment, in the winding 2, each winding part 21 penetrates the same surface of the magnet 1. In this way, all the terminals are located on the same side of the magnet 1, facilitating connection with the external circuit. In other embodiments, in the winding 2, part of the winding parts 21 penetrate the top surface of the magnet 1, and the other part of the winding parts 21 penetrate the side surface or the bottom surface of the magnet 1, which can achieve connection with the external circuit and is not limited to the embodiment. Further, in the embodiment, the first exposed surface of each winding part 21 is located on the same plane, and the plane is located outside the magnet 1, which is more convenient for connection with the external circuit and facilitates heat dissipation. In other embodiments, the first exposed surface of each winding part 21 is located on the same plane, and the plane is flush with the surface of the magnet 1, which can save space. Of course, the first exposed surface of each winding part 21 can not be located on the same plane.

[0041] ​Optionally, each winding part 21 is further provided with a second exposed surface 212 exposed outside the magnet 1 in the winding 2. By providing the second exposed surface 212, the contact with the outside air is increased, and the heat dissipation effect is better. In the embodiment, the second exposed surface 212 is arranged on the winding part 21 close to the first exposed surface, and the second exposed surface 212 is in communication with the first exposed surface. In this way, the structure is simple, and the formation of the second exposed surface 212 is more convenient when the winding 2 and the magnet 1 are manufactured. In other embodiments, the second exposed surface 212 can be located at the middle part of the winding part 21, and the second exposed surface 212 is not in communication with the first exposed surface. In the embodiment, the second exposed surface 212 is flush with the outer surface of the magnet 1, the structure is compact, and the space is saved.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An inductor, characterized in that, include: Magnet (1), The winding (2) includes at least three winding sections (21), which are embedded in the magnet (1). In the winding (2), every two winding sections (21) are connected to each other to form a corresponding electrical conduction structure. Each electrical conduction structure covers a different volume of the magnet (1), resulting in different inductance values. One end of each winding section (21) extends out of the magnet (1) and is exposed to form a first exposed surface, which is used as a terminal.

2. The inductor according to claim 1, characterized in that, In the winding (2), the position of at least one winding portion (21) relative to the other winding portions (21) is adjustable.

3. The inductor according to claim 1, characterized in that, In the winding (2), each winding portion (21) penetrates the same surface of the magnet (1).

4. The inductor according to claim 1, characterized in that, In the winding (2), each winding portion (21) is further provided with a second exposed surface (212), which is exposed outside the magnet (1).

5. The inductor according to claim 4, characterized in that, The second exposed surface (212) is disposed on the winding portion (21) close to the first exposed surface, and the second exposed surface (212) is connected to the first exposed surface.

6. The inductor according to claim 4, characterized in that, The second exposed surface (212) is flush with the outer surface of the magnet (1).

7. The inductor according to any one of claims 1-6, characterized in that, The winding section (21) is provided in three parts, and each pair of winding sections (21) is connected to each other to form three electrical conduction structures. The three electrical conduction structures cover the magnet (1) in different volumes. The three electrical conduction structures are the first electrical conduction structure, the second electrical conduction structure and the third electrical conduction structure.

8. The inductor according to claim 7, characterized in that, The winding section (21) has an L-shaped structure, and the three first exposed surfaces corresponding to the three winding sections (21) are a first terminal (211a), a second terminal (211b), and a third terminal (211c), respectively. The two winding sections (21) corresponding to the first terminal (211a) and the third terminal (211c) are arranged opposite to each other and form the first electrical conduction structure. The winding section (21) corresponding to the second terminal (211b) is arranged close to the winding section (21) corresponding to the third terminal (211c) and forms the second electrical conduction structure with the winding section (21) corresponding to the third terminal (211c). The two winding sections (21) corresponding to the first terminal (211a) and the second terminal (211b) are connected to form the third electrical conduction structure.

9. The inductor according to any one of claims 1-6, characterized in that, The winding section (21) is made of copper.

10. The inductor according to any one of claims 1-6, characterized in that, The magnet (1) and the winding (2) are integrally die-cast.

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