Choking coil inductor

Abstract

The utility model relates to the technical field of electronic components, in particular to a choking coil inductor, which is characterized in that baffles are arranged at two ends of a winding sleeve, an enameled wire is wound on the winding sleeve, a rod-shaped magnetic core is arranged in the winding sleeve in a penetrating manner, grooves for mounting soft ferrite magnetic sheets are arranged on the baffles, and the soft ferrite magnetic sheets are arranged in the grooves. By means of the design, the enameled wire does not make direct contact with the rod-shaped magnetic core. Then the inductor assembly is placed in the base, and the influence of environmental high voltage on the inductor assembly is blocked through the base, so that the high voltage resistance of the choking coil inductor is improved; and the baffle plate not only protects the enameled wire and the rod-shaped magnetic core, but also supports and protects the soft ferrite magnetic sheet, so that the problem that the I-shaped magnetic core is broken due to the fact that a conventional structure is pressed or collided is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic components, in particular to a choke coil inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. In the circuit, the inductor mainly plays the role of screening signals, filtering noise, stabilizing current, and suppressing electromagnetic interference. Existing choke coil inductors usually use hard ferrite to make an I-shaped magnetic core, and enameled wire is wound on the magnetic core. The outer surface is then covered with a UL heat-resistant insulating sleeve to achieve the effect of blocking the environmental voltage. However, such a structure has the following problems: (1) The UL heat-resistant insulating sleeve is prone to deterioration or cracking; (2) The I-shaped magnetic core is not protected and is prone to serious quality problems such as appearance cracking and loss of function. Utility Model Content

[0003] In order to achieve the above object, the utility model provides a choke coil inductor, comprising:

[0004] Base;

[0005] A winding sleeve, with baffles disposed at both opposite ends thereof, and the winding sleeve can be installed in the base;

[0006] an enameled wire, wound around the outer circumference of the winding sleeve;

[0007] A rod-shaped magnetic core is inserted into the winding sleeve;

[0008] Wherein, the baffle is provided with a groove, and a soft ferrite magnetic sheet is mounted on the groove.

[0009] In some possible embodiments, the winding sleeve and the two baffles are integrally formed into an I-shaped structure.

[0010] In some possible embodiments, a horizontal arc-shaped protrusion is provided on a peripheral side of the baffle, and at least one pin winding groove is formed on the arc-shaped protrusion.

[0011] In some possible embodiments, at least one pin notch for locating the arc-shaped protrusion is opened on the peripheral side of the base, and mounting portions are arranged on both opposite sides thereof.

[0012] In some possible embodiments, a receiving groove is provided on the base, the winding sleeve is vertically placed in the receiving groove, and an upper end surface of the baffle is flush with an upper end surface of the base.

[0013] In some possible embodiments, the depth of the groove is adapted to the thickness of the soft ferrite magnetic sheet.

[0014] Compared with the prior art, the beneficial effect of the utility model is that: the choke coil inductor of the utility model is provided with baffles at both ends of the winding sleeve, the enameled wire is wound on the winding sleeve, a rod-shaped magnetic core is inserted into the winding sleeve, and a groove for mounting a soft ferrite magnetic sheet is provided on the baffle to assemble an inductor assembly. This design prevents the enameled wire from directly contacting the rod-shaped magnetic core; the inductor assembly is then placed in the base, and the influence of the environmental high voltage on the inductor assembly is blocked by the base, thereby improving the high-voltage resistance of the choke coil inductor; and the baffle not only protects the enameled wire and the rod-shaped magnetic core, but also supports and protects the soft ferrite magnetic sheet, effectively avoiding the problem of the conventional structure causing the I-shaped magnetic core to break due to pressure or collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A three-dimensional structural diagram of a choke coil inductor provided in an embodiment of the utility model;

[0017] Figure 2 A cross-sectional structural diagram of a choke coil inductor provided in an embodiment of the utility model;

[0018] Figure 3 A three-dimensional structural diagram of the winding sleeve and the baffle part provided in an embodiment of the utility model.

[0019] Figure numerals: base 10, winding sleeve 11, baffle 12, enameled wire 13, rod-shaped magnetic core 14, groove 15, soft ferrite magnetic sheet 16, arc-shaped protrusion 17, pin winding groove 18, pin notch 19, mounting portion 20, mounting threaded hole 21. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 and Figure 2A choke coil inductor shown in the figure includes a base 10, a winding sleeve 11, an enameled wire 13 and a rod-shaped magnetic core 14. A receiving groove is provided on the base 10. The enameled wire 13 is wound around the outer periphery of the winding sleeve 11. Baffles 12 are provided at both ends of the winding sleeve 11. The maximum outer diameter of the enameled wire 13 after winding is not greater than the diameter of the baffle 12, so that the baffle 12 can protect the enameled wire 13. The rod-shaped magnetic core 14 is inserted into the winding sleeve 11. A groove 15 is also provided on the outer side of the baffle 12. A soft ferrite magnetic sheet 16 is mounted on the groove 15 to assemble into an inductor assembly, and then the inductor assembly is installed in the receiving groove, so that the base 10 can protect the inductor assembly and block the environmental high voltage. In this embodiment, the soft ferrite magnetic sheet 16 is specifically a soft on-demand absorbing material FAM-B, which is a thin, flexible, broadband EMI / RFI / microwave absorbing material.

[0022] In some possible embodiments, reference Figure 3 As shown, the winding sleeve 11 and the two baffles 12 are an integrally formed I-shaped structure. This design can physically isolate the enameled wire 13 from the rod-shaped magnetic core 14, and the enameled wire 13 from the soft ferrite magnetic sheet 16, effectively avoiding the safety hazard caused by the damage of the UL heat-resistant insulating sleeve in the conventional structure.

[0023] In some possible embodiments, reference Figure 3 As shown, a horizontal arc-shaped protrusion 17 is provided on the circumferential side of the baffle 12, and at least one pin winding groove 18 is opened on the arc-shaped protrusion 17. The lead end of the enameled wire 13 can be wound around the pin winding groove 18 to fix it to the winding sleeve 11, and the lead end then extends horizontally from the winding groove.

[0024] In some possible embodiments, reference Figure 1 As shown, at least one lead notch 19 is provided on the periphery of the base 10 to allow for the arc-shaped protrusion 17 to ensure that the inductor component can be placed in the receiving groove and the lead end can pass through the base 10 to be connected to an external circuit.

[0025] In some possible embodiments, reference Figure 1 As shown, mounting portions 20 are provided on opposite sides of the base 10, and mounting threaded holes 21 are also provided on the mounting portions 20. Screws pass through the mounting threaded holes 21 to fix the choke coil inductor on the PCB. At this time, the inductor components are all located in the base 10, which has a good effect of blocking the environmental high pressure.

[0026] In some possible embodiments, the depth of the accommodating groove is adapted to the height of the inductor assembly, so that the upper end surface of the baffle 12 is flush with the upper end surface of the base 10 . Furthermore, the depth of the groove 15 is adapted to the thickness of the soft ferrite magnetic sheet 16 .

[0027] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A choke coil inductor, characterized in that: include: Base (10); A winding sleeve (11), with baffles (12) disposed at both opposite ends thereof, and the winding sleeve (11) can be installed in the base (10); An enameled wire (13) is wound around the outer circumference of the winding sleeve (11); A rod-shaped magnetic core (14) is inserted into the winding sleeve (11); The baffle (12) is provided with a groove (15), and a soft ferrite magnetic sheet (16) is mounted on the groove (15).

2. A choke coil inductor according to claim 1, characterized in that: The winding sleeve (11) and the two baffles (12) are an integrally formed I-shaped structure.

3. A choke coil inductor according to claim 1, characterized in that: A horizontal arc-shaped protrusion (17) is provided on the peripheral side of the baffle (12), and at least one pin winding groove (18) is provided on the arc-shaped protrusion (17).

4. A choke coil inductor according to claim 3, characterized in that: At least one pin notch (19) is provided on the circumferential side of the base (10) to allow for the arc-shaped protrusion (17).

5. A choke coil inductor according to claim 1, characterized in that: The base (10) is provided with mounting parts (20) on opposite sides, and the mounting parts (20) are provided with mounting threaded holes (21).

6. A choke coil inductor according to claim 1, characterized in that: The base (10) is provided with a receiving groove, the winding sleeve (11) is vertically placed in the receiving groove, and the upper end surface of the baffle (12) is flush with the upper end surface of the base (10).

7. A choke coil inductor according to claim 1, characterized in that: The groove depth of the groove (15) is adapted to the thickness of the soft ferrite magnetic sheet (16).

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