Rod-shaped inductor with center pillar

Abstract

The utility model relates to a rod-shaped inductor with a middle column, which is characterized in that the middle column adopts a hollow structure and is made of insulating materials, a magnetic core is arranged in the middle column, a plurality of groups of coils are arranged outside the middle column in a surrounding manner, and two groups of coils on the outermost side are provided with pins. According to the design, through the hollowed-out middle column, a necessary insulation gap between the magnetic core and the coil is ensured, effective heat dissipation is greatly promoted, and the heat dissipation performance and the working stability of the inductor are remarkably improved. Compared with a traditional solid structure, the inductor has the advantages that the structural strength is maintained, the weight is reduced, the space utilization rate is optimized, and the electrical performance of the inductor can be improved. Therefore, the inductor is suitable for inductor application occasions with high heat dissipation requirements, limited space and pursuing of high performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric component technical field especially, it relates to a kind of with middle column rod inductance. BACKGROUND

[0002] In electronic field, inductor is widely used in various electronic circuits as an important component, and plays the role of energy storage, filtering, oscillation and delay. The traditional rod inductance design usually includes a solid middle column, the magnetic core is placed in the middle column, and the coil is tightly wound outside the middle column. Although this design realizes the basic function of inductance to some extent, due to the solid structure of the middle column, heat is difficult to dissipate effectively, resulting in rapid temperature rise of inductor during operation, especially in high-power or long-time working scenarios, the excessively high temperature not only affects the performance stability of inductor, but also may shorten its service life, and even cause safety hazards. SUMMARY

[0003] The utility model aims at providing a kind of with middle column rod inductance, to solve the technical problem of poor heat dissipation performance of traditional rod inductance.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of providing a kind of with middle column rod inductance, the with middle column rod inductance includes:

[0005] Middle column, the middle column is hollow structure, the middle column is made of insulating material;

[0006] Magnetic core, the magnetic core is arranged in the middle column;

[0007] A plurality of groups of coils, the coil is arranged around the outside of the middle column, and the two outermost groups of coils are provided with pins.

[0008] In one embodiment, one end of the middle column is provided with an opening.

[0009] In one embodiment, the outer surface of the middle column is provided with a limiting boss, the limiting boss is uniformly arranged along the length direction of the middle column, and the limiting boss uniformly separates each group of the coil.

[0010] In one embodiment, the wire gauge of the coil is 1.5*6, and the number of turns of the coil is 14.5Ts.

[0011] In one embodiment, the pin of the coil is welded with an electronic wire, and the wire is drawn out by welding the electronic wire.

[0012] In one embodiment, it further includes a base, the base is provided with a supporting part at both ends, one end of the middle column is embedded in one of the supporting parts, and the other end of the middle column is clamped on the other supporting part by buckle.

[0013] In one embodiment, a gap is provided between the bottom of the coil and the top surface of the base.

[0014] The one or more technical solutions described above in the embodiments of the present application have at least the following technical effects or advantages:

[0015] The middle column rod-shaped inductor provided in the embodiments of the present application naturally forms an insulation gap between the magnetic core and the coil by using the hollow middle column structure, effectively prevents the occurrence of short circuit phenomenon, and improves the safety and reliability of the inductor. Moreover, the hollow structure greatly increases the air circulation area, so that the heat can be quickly dissipated from the magnetic core body and the coil inner side through the gap of the middle column, significantly reduces the working temperature of the inductor, prolongs the service life of the inductor, and improves the stability and efficiency of the inductor in high-power applications. In addition, the hollow design not only maintains the necessary structural strength of the inductor, but also reduces the overall weight, which is conducive to the lightweight development of electronic products. Finally, the good heat dissipation condition and stable insulation environment jointly improve the improvement of the electrical performance of the inductor, including lower loss and more stable inductance value. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Fig. 1 The structure schematic diagram of the middle column rod-shaped inductor provided in the embodiments of the present application is shown in the figure.

[0018] Fig. 2 The sectional view of the middle column rod-shaped inductor provided in the embodiments of the present application is shown in the figure.

[0019] Fig. 3 The structure schematic diagram of the middle column rod-shaped inductor provided in the embodiments of the present application is shown in the figure.

[0020] Among them, various signs are as follows:

[0021] 1, middle column; 2, magnetic core; 3, coil; 4, electronic wire; 5, base; 11, limiting boss; 31, pin; 51, support part. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0023] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0025] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, 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 those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figs. 1 to 3 The embodiment of the present application provides a kind of with middle column rod-shaped inductance, including middle column 1, magnetic core 2 and several groups of coil 3. Among them, middle column 1 is hollow structure, middle column 1 is made of insulating material. Magnetic core 2 is arranged in middle column 1. Coil 3 is arranged around the outside of middle column 1, and the two groups of coils 3 on the outermost side are provided with pin 31.

[0027] The bar-shaped inductor with a middle column 1 provided by the embodiment utilizes the hollow middle column 1 structure to naturally form an insulation gap between the magnetic core 2 and the coil 3, effectively prevents the occurrence of short circuit phenomenon, and improves the safety and reliability of the inductor. Moreover, the hollow structure greatly increases the air flow area, so that the heat can be quickly dissipated from the magnetic core 2 body and the inside of the coil 3 through the gap of the middle column 1, significantly reduces the working temperature of the inductor, prolongs the service life of the inductor, and improves the stability and efficiency of the inductor in high-power applications. In addition, the hollow design not only maintains the necessary structural strength of the inductor, but also reduces the overall weight, which is conducive to the lightweight development of electronic products. Finally, the good heat dissipation condition and stable insulation environment jointly improve the improvement of the electrical performance of the inductor, including lower loss and more stable inductance value.

[0028] In one embodiment, one end of the middle column 1 is provided with an opening. By designing an opening at one end of the middle column 1, the bar-shaped magnetic core 2 can be more conveniently inserted or taken out from the opening end, simplifying the assembly process, thereby improving the assembly efficiency, reducing the assembly difficulty, and facilitating the maintenance and replacement of the magnetic core 2.

[0029] In one embodiment, the outer surface of the middle column 1 is provided with a limiting boss 11, and the limiting bosses 11 are uniformly arranged along the length direction of the middle column 1. The limiting bosses 11 uniformly separate the groups of coils 3. By uniformly arranging the limiting bosses 11 along the length direction of the outer surface of the middle column 1, these limiting bosses 11 as physical barriers uniformly separate the groups of coils 3. The limiting bosses 11 not only ensure the uniform distribution of the coils 3, improve the consistency of the inductor performance, but also ensure the uniform gap between the coils 3, promote the heat dissipation, reduce the working temperature, and improve the service life and stability of the inductor.

[0030] In one embodiment, the wire gauge of the coil 3 is 1.5*6, and the number of turns of the coil 3 is 14.5Ts. Based on the comprehensive design of electrical performance requirements, heat dissipation considerations, and cost control, a specific wire gauge (1.5*6) and number of turns (14.5Ts) of the coil 3 are selected in this embodiment. This design makes the inductor have appropriate inductance, good current carrying capacity and low noise level, while maintaining high heat dissipation efficiency and reducing energy consumption.

[0031] In one embodiment, an electronic wire 4 is welded on the pin 31 of the coil 3, and the electronic wire 4 is welded out. The electronic wire 4 is directly welded on the pin 31 of the coil 3 as a connection mode of the inductor and the external circuit. The welding mode of the electronic wire 4 improves the reliability and stability of the connection, simplifies the installation process, and enables the inductor to be applicable to more installation environments and application scenarios.

[0032] In one embodiment, the base 5 is further provided with support portions 51 at both ends, one end of the middle column 1 is embedded in one support portion 51, and the other end of the middle column 1 is buckled to the other support portion 51. The base 5 provides stable support and ensures the stability of the inductor. Meanwhile, the combination of embedding and buckling makes the assembly of the middle column 1 more convenient and improves the production efficiency.

[0033] Optionally, a plurality of mounting holes are formed in the edge of the base 5 to facilitate the mounting and fixing of the inductor.

[0034] In one embodiment, a gap is provided between the bottom of the coil 3 and the top surface of the base 5. By providing the base 5, the height of the middle column 1 is raised, and thus a gap is provided between the bottom of the coil 3 and the top surface of the base 5. This gap provides additional heat dissipation space for the coil 3, helps to quickly dissipate heat, further reduces the working temperature of the inductor, and improves the stability and reliability of long-term operation.

[0035] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An inductor with a central column rod shape, characterized in that, The strip middle column rod-shaped inductor comprises: a middle column in a hollow structure made of insulating material; a magnetic core arranged in the middle column; a plurality of groups of coils arranged outside the middle column, and pins arranged on the outermost two groups of coils.

2. The strip middle column rod-shaped inductor according to claim 1, wherein: one end of the middle column is provided with an opening.

3. The strip middle column rod-shaped inductor according to claim 1, wherein: a limiting boss is arranged on the outer surface of the middle column, the limiting boss is uniformly arranged along the length direction of the middle column, and the limiting boss uniformly separates the groups of coils.

4. The strip middle column rod-shaped inductor according to claim 1, wherein: the wire gauge of the coil is 1.5*6, and the number of turns of the coil is 14.5Ts.

5. The strip middle column rod-shaped inductor according to claim 1, wherein: an electronic wire is welded on the pin of the coil, and the wire is led out by welding the electronic wire.

6. The strip middle column rod-shaped inductor according to claim 1, further comprising: a base provided with support portions at both ends, one end of the middle column is embedded in one of the support portions, and the other end of the middle column is clamped on the other support portion by a buckle.

7. The strip middle column rod-shaped inductor according to claim 6, wherein: a gap is arranged between the bottom of the coil and the top surface of the base.

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