Inductor structure

Abstract

The utility model discloses an inductor structure, which comprises a magnetic core assembly, a magnetic core, a coil, a first coil, a second coil, a third coil, a fourth coil and a fifth coil, the coil body is arranged in the coil accommodating cavity, and the cross section of the coil body is rectangular; the base is connected with the magnetic core assembly and provided with two tin guide plates, the two tin guide plates are arranged in a central symmetry mode, the magnetic core assembly is made of alloy materials, the saturation magnetic flux density of the magnetic core assembly can be increased, the size of a coil containing cavity in the magnetic core assembly is increased, the cross section of the coil body is arranged to be rectangular, and the size of the coil containing cavity in the magnetic core assembly is increased. The direct-current resistance of the coil body can be reduced, so that the temperature rise current and the rated current are improved to meet the current requirement of a circuit.

Description

Technical Field

[0001] The present application relates to the technical field of inductors, and in particular to an inductor structure. Background Art

[0002] Inductors, also known as chokes, reactors, and dynamic reactors, are components that convert electrical energy into magnetic energy and store it. Their structure is similar to a transformer, but with only one winding. While they possess a certain inductance, they only impede changes in current.

[0003] Currently, existing inductors are usually assembled using a ferrite core, a coil, and a base. The ferrite core has a relatively small Bs (saturated magnetic flux density). To ensure that the core is not saturated at peak current, the cross-sectional area of ​​the ferrite core is required to be larger. As a result, the space for placing the coil in the ferrite core is smaller, the coil size is reduced, and the DC resistance of the coil is increased, while the temperature rise current is reduced, resulting in a reduced rated current that cannot meet the circuit current requirements. Utility Model Content

[0004] The embodiments of the present application provide an inductor structure that can solve the problem that the space for placing the coil in the current ferrite core is small, the coil size is reduced, and the DC resistance of the coil is increased, the temperature rise current is reduced, and the rated current is reduced and cannot meet the circuit current requirements.

[0005] The present application provides an inductor structure, comprising:

[0006] A magnetic core component, wherein a coil cavity is provided therein, and the magnetic core component is made of an alloy material;

[0007] A coil body is disposed in the coil cavity, and the cross section of the coil body is rectangular;

[0008] The base is connected to the magnetic core assembly and is provided with two tin guide plates, which are centrally symmetrically arranged.

[0009] In some embodiments, the magnetic core assembly includes two magnetic cores, each of which includes a center column and an outer wall. A half coil cavity is formed between the center column and the outer wall, and the two half coil cavities form the coil cavity.

[0010] In some embodiments, a coupling surface is provided at the bottom of the outer wall, and the two magnetic cores are connected via the coupling surface.

[0011] In some embodiments, the outer surface of the outer wall is coated with insulating anti-rust paint.

[0012] In some embodiments, the base is further provided with two pin holes.

[0013] In some embodiments, the two pin holes are arranged in a central symmetry.

[0014] In some embodiments, the two ends of the coil body have an inlet end and an outlet end, and the inlet end and the outlet end are provided in the two pin holes.

[0015] In some embodiments, the inlet end and the outlet end are coated with a connecting tin layer.

[0016] In some embodiments, the base is made of an alloy material.

[0017] In some embodiments, the outer surface of the base is coated with an insulating anti-rust paint.

[0018] The application provides an inductor structure comprising: a magnetic core assembly provided with a coil cavity, the magnetic core assembly being made of an alloy material; a coil body provided in the coil cavity, the cross section of the coil body being rectangular; and a base connected to the magnetic core assembly and provided with two tin guide plates, the two tin guide plates being arranged in a central symmetry. The magnetic core assembly is made of an alloy material to increase the saturation magnetic flux density of the magnetic core assembly, increase the volume of the coil cavity in the magnetic core assembly, and the cross section of the coil body is rectangular to reduce the direct current resistance of the coil body, thereby improving the temperature rise current and the rated current to meet the circuit current demand. BRIEF DESCRIPTION OF DRAWINGS

[0019] The technical solutions and other beneficial effects of the application will become apparent from the following detailed description of specific embodiments of the application, taken in conjunction with the accompanying drawings.

[0020] Figure 1 is an exploded view of an inductor structure provided by an embodiment of the application;

[0021] Figure 2 is a perspective view of an inductor structure provided by an embodiment of the application;

[0022] Figure 3 is a schematic view of a magnetic core structure provided by an embodiment of the application;

[0023] Figure 4 is a schematic view of a coil structure provided by an embodiment of the application;

[0024] Figure 5 is a schematic view of a base structure provided by an embodiment of the application.

[0025] Reference Signs:

[0026] 10, magnetic core; 110, outer wall; 1101, bottom connecting surface; 1102, connecting surface; 120, middle column; 130, half coil cavity;

[0027] 20, coil body; 210, incoming line end; 220, outgoing line end;

[0028] 30. Base plate; 310. Tin guide plate; 320. Pin hole. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] An inductor is a component that converts electrical energy into magnetic energy and stores it. Its structure is similar to a transformer, but with a single winding. An inductor has a certain inductance, which simply blocks changes in current. If no current flows through the inductor, it will attempt to block current flow when the circuit is connected. If current flows through the inductor, it will attempt to maintain the current flow when the circuit is disconnected. Inductors are also called chokes, reactors, and dynamic reactors.

[0032] With the needs of industry development, inductors in circuits are generally required to have a large rated current while having a small volume. However, existing inductors are generally assembled using a ferrite core, a coil, and a base. The ferrite core has a relatively small saturated magnetic flux density (Bs). To ensure that the core is not saturated at peak current, the formula is N*Ae*Bs=L*Ip, where N is the number of coil turns, Ae is the effective cross-sectional area of ​​the core, Bs is the saturated magnetic flux density, L is the required inductance, and Ip is the required current. Usually, L and Ip are fixed requirements and cannot be changed. The Bs value of the ferrite core is usually small. Under the same volume, the cross-sectional area of ​​the required ferrite core (i.e., the center leg) is larger, resulting in less space for placing the coil in the ferrite core, reducing the coil size (i.e., the cross-sectional area), and thus increasing the DC resistance of the coil and reducing the temperature rise current. As a result, the rated current is reduced and cannot meet the circuit current requirements.

[0033] In response to the above technical issues, such as Figure 1 、 2 As shown, an embodiment of the present application provides an inductor structure, including:

[0034] A magnetic core component, wherein a coil cavity is provided therein, and the magnetic core component is made of an alloy material;

[0035] The coil body 20 is disposed in the coil cavity, and the cross section of the coil body 20 is rectangular;

[0036] The base 30 is connected to the magnetic core assembly and is provided with two tin guide plates 310 , which are centrally symmetrically arranged.

[0037] It should be noted that by setting the magnetic core component to an alloy material, the saturation magnetic flux density of the magnetic core component can be increased, thereby increasing the volume of the coil cavity in the magnetic flux component, and by setting the cross-section of the coil body 20 to a rectangle, the DC resistance of the coil body 20 can be reduced, thereby increasing the temperature rise current and rated current to meet the circuit current requirements, and by arranging the two tin guide plates 310 on the base 30 in a centrally symmetrical manner, the welding reliability can be improved.

[0038] In some embodiments, the magnetic core assembly includes two magnetic cores 10, the magnetic core 10 includes a central column 120 and an outer wall 110, a half coil cavity 130 is formed between the central column 120 and the outer wall 110, and the two half coil cavities 130 form the coil cavity.

[0039] In some embodiments, a joint surface 1102 is provided at the bottom of the outer wall 110 , and the two magnetic cores 10 are connected via the joint surface 1102 .

[0040] It should be noted that if Figure 1 、 3 As shown, by dividing the magnetic core assembly into two magnetic cores 10, the assembly and disassembly of the inductor can be facilitated, and the two magnetic cores 10 are relatively connected through the coupling surface 1102. One end of the outer wall 110 in the vertical direction is the coupling surface 1102, and one end of the outer wall 110 in the horizontal direction (i.e., the left end) is an open structure, which is provided with a bottom connecting surface 1101 for easy connection with the bottom plate 30. The inner side of the outer wall 110 away from the bottom connecting surface 1101 is an arc-shaped surface, which can increase the strength and shielding capability of the magnetic core 10.

[0041] In some embodiments, the outer surface of the outer wall 110 is coated with insulating anti-rust paint.

[0042] It should be noted that coating the outer surface of the outer wall 110 with the insulating anti-rust paint can reduce interference with the inductor and prevent corrosion.

[0043] In some embodiments, the base 30 is further provided with two pin holes 320 .

[0044] In some embodiments, the two pin holes 320 are arranged in a centrally symmetrical manner.

[0045] It should be noted that if Figure 5 As shown, the central arrangement of the two pin holes 320 can improve the uniformity of the weight distribution of the entire inductor, thereby improving the connection stability and reliability.

[0046] In some embodiments, the coil body 20 has an inlet terminal 210 and an outlet terminal 220 at both ends, and the inlet terminal 210 and the outlet terminal 220 are inserted into the two pin holes 320 .

[0047] In some embodiments, the inlet terminal 210 and the outlet terminal 220 are coated with a connection tin layer.

[0048] It should be noted that if Figure 2 、 4 As shown in Figure 5, in the assembled state, the input terminal 210 and the output terminal 220 are respectively passed through the two pin holes 320. By providing the connecting tin layer on the input terminal 210 and the output terminal 220, the coil body 20 can be easily connected to the external circuit.

[0049] It should be noted that the two tin guide plates 310 are arranged on the edges of the base plate 30 (i.e., the left and right sides of the base plate 30, and are arranged in a centrally symmetrical manner), and do not completely cover the edges of the base plate 30 (i.e., the left and right sides). The edges of the base plate 30 not covered by the tin guide plates 310 are used to set the two pin holes 320, thereby facilitating the connection of the coil body 20 and the tin guide plates 310 with the external circuit.

[0050] In some embodiments, the base 30 is made of alloy.

[0051] In some embodiments, the outer surface of the base 30 is coated with insulating anti-rust paint.

[0052] It should be noted that coating the outer surface of the base 30 with the insulating anti-rust paint can reduce interference with the inductor and prevent corrosion.

[0053] In summary, an embodiment of the present application provides an inductor structure including: a magnetic core component, which is provided with a coil cavity, and the magnetic core component is made of an alloy material; a coil body 20, which is provided in the coil cavity, and the cross-section of the coil body 20 is rectangular; a base 30, which is connected to the magnetic core component and is provided with two tin guide plates 310, and the two tin guide plates 310 are arranged in a central symmetrical manner. By setting the magnetic core component to an alloy material, the saturation magnetic flux density of the magnetic core component can be increased, the volume of the coil cavity in the magnetic core component can be increased, and by setting the cross-section of the coil body 20 to a rectangle, the DC resistance of the coil body 20 can be reduced, thereby increasing the temperature rise current and the rated current to meet the circuit current requirements.

[0054] It should be noted that the terms used in this application are intended only to describe specific embodiments and are not intended to limit the scope of this application. As shown in the specification and claims of this application, unless the context clearly indicates an exception, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may include the plural. The terms "include," "comprising," or any other variations thereof are intended to cover non-exclusive inclusions.

[0055] It should also be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

[0057] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. An inductor structure, characterized in that: include: A magnetic core component, wherein a coil cavity is provided therein, and the magnetic core component is made of an alloy material; A coil body is disposed in the coil cavity, and the cross section of the coil body is rectangular; The base is connected to the magnetic core assembly and is provided with two tin guide plates, which are centrally symmetrically arranged.

2. The inductor structure according to claim 1, wherein: The magnetic core assembly includes two magnetic cores, each of which includes a center column and an outer wall. A half coil cavity is formed between the center column and the outer wall, and the two half coil cavities form the coil cavity.

3. The inductor structure according to claim 2, wherein: A joining surface is provided at the bottom of the outer wall, and the two magnetic cores are connected via the joining surface.

4. The inductor structure according to claim 2, wherein: The outer surface of the outer wall is coated with insulating anti-rust paint.

5. The inductor structure according to claim 1, wherein: The base is also provided with two pin holes.

6. The inductor structure according to claim 5, wherein: The two pin holes are arranged in a centrally symmetrical manner.

7. The inductor structure according to claim 5, wherein: The two ends of the coil body are provided with an inlet end and an outlet end, and the inlet end and the outlet end are passed through the two pin holes.

8. The inductor structure according to claim 7, wherein: The inlet terminal and the outlet terminal are coated with a connection tin layer.

9. The inductor structure according to claim 1, wherein: The base is made of alloy.

10. The inductor structure according to claim 1, wherein: The outer surface of the base is coated with insulating anti-rust paint.

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