A choke coil inductor

Abstract

The utility model relates to electronic components technical field especially relates to a choke coil inductor, the utility model discloses the protrusion that extends along the radial is arranged at two corners of base body, the threading hole along the axial is seted up on the protrusion, and the both ends of coil extend to two protrusions along the radial respectively, and the one end of two electronic wires respectively passes threading hole and is electrically connected with the both ends of coil, and such design can increase the distance between the two lead ends of coil, and the insulation performance and reliability of inductor are improved significantly, and the corona discharge problem under high pressure environment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, and in particular to a choke coil inductor. Background Technology

[0002] In electronic devices, choke inductors are key components for suppressing high-frequency interference and stabilizing current. However, existing choke inductors have shortcomings in insulation performance and reliability. When applied to high-voltage environments, inductors are prone to corona discharge and deterioration of insulation performance, which not only affect the normal operation of the inductor but may also cause equipment failure and even safety hazards. Furthermore, the handling of the lead ends in existing inductors is inadequate, easily leading to contact between the leads and causing short circuits. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a housing and a base body. The center of the base body is provided with a first through hole for mounting a rod-shaped magnetic core. The outer periphery of the base body is used for winding a coil. Both ends of the base body are provided with baffles. The baffles have grooves. Soft ferrite magnetic sheets are attached to the grooves. Both corners of the base body are provided with radially extending protrusions. The protrusions have axially extending wire holes. The housing is formed with a mounting groove for placing the base body. The bottom of the mounting groove, corresponding to the position of the protrusion, has a second through hole. One end of each of two electronic wires passes through the two wire holes and is electrically connected to the lead end of the coil.

[0004] In some possible embodiments, a groove is formed on the inner side of the baffle, the groove extending from the middle of the baffle to the protrusion.

[0005] In some possible embodiments, the thickness of the protrusion is smaller than the thickness of the baffle, and a clearance step is formed between the protrusion and the inner side of the baffle.

[0006] In some possible embodiments, the protrusion is cylindrical, the outer shell is rectangular in shape, and the mounting groove thereon is adapted to the base body.

[0007] In some possible embodiments, a notch is formed on the housing at a position corresponding to the second through hole, and the electronic wire can be bent from the notch and pass through the wire hole.

[0008] In some possible embodiments, mounting portions are provided on opposite sides of the housing, and mounting portions are provided with mounting through holes.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides radially extending protrusions at the two corners of the base body, and axially extending wire holes are opened on the protrusions. The two ends of the coil extend radially to the two protrusions respectively. One end of each of the two electronic wires passes through the wire holes and is electrically connected to the two ends of the coil. This design can increase the distance between the two lead ends of the coil, significantly improve the insulation performance and reliability of the inductor, and avoid the corona discharge problem under high voltage environment. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A three-dimensional structural diagram of a choke coil inductor provided in an embodiment of this utility model;

[0012] Figure 2 A three-dimensional assembly drawing of a choke coil inductor provided for an embodiment of this utility model;

[0013] Figure 3 A three-dimensional structural diagram of the inductor after the housing is hidden, provided in an embodiment of this utility model;

[0014] Figure 4 The main structural view of the choke coil inductor provided in the embodiment of this utility model.

[0015] Reference numerals: 1. Outer shell; 11. Mounting groove; 13. Notch; 14. Mounting part; 14a. Mounting through hole; 2. Base body; 21. First through hole; 22. Baffle; 23. Groove; 24. Soft ferrite magnetic sheet; 25. Protrusion; 25a. Wire hole; 26. Wire groove; 27. Relief step; 3. Coil; 4. Electronic wire; 5. Magnetic core. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 4The diagram shows a choke coil inductor, comprising a housing 1 and a base body 2. The housing 1 is rectangular hexahedron in shape, and the base body 2 is sleeve-shaped. A first through hole 21 for mounting a rod-shaped magnetic core 5 is provided at the center of the base body 2, and the outer periphery of the base body 2 is used for winding a coil 3. Both ends of the base body 2 are provided with baffles 22. The maximum outer diameter of the coil 3 after winding is not greater than the minimum outer diameter of the baffle 22. Grooves 23 are formed on the baffles 22, and soft ferrite magnetic sheets 24 are attached to the grooves 23. Radially extending protrusions 25 are provided at both corners of the base body 2. These two corners are preferably adjacent corners of the rectangular baffle 22. A through hole 25a is formed on the protrusions 25 along the axial direction. A mounting groove 11 for placing the base body 2 is formed on the housing 1, and a second through hole is formed at the bottom of the mounting groove 11 corresponding to the position of the protrusion 25. One end of the electronic wire 4 is inserted sequentially through the second through hole and the wire hole 25a and electrically connected to the lead end of the coil 3.

[0018] The choke coil inductor of this invention has protrusions 25 at both corners of the baffle 22. The protrusions 25 have axial through holes 25a. The two leads of the coil 3 extend radially to the two through holes 25a respectively. One end of the electronic wire 4 passes through the second through hole and the through hole 25a and is electrically connected to the lead of the coil 3. This design can increase the distance between the two leads of the coil 3, significantly improve the insulation performance and reliability of the inductor, and avoid the problem of corona discharge under high voltage environment.

[0019] In some possible embodiments, a wire groove 26 is formed on the inner side of the baffle 22, extending from the middle of the baffle 22 to the protrusion 25. The design of the wire groove 26 facilitates the guidance and fixation of the lead wire, effectively avoiding the problem of wear and leakage caused by friction between the lead wire end and the coil 3, and improving the reliability of the inductor.

[0020] In some possible embodiments, the thickness of the protrusion 25 is smaller than the thickness of the baffle 22, and a clearance step is formed between the protrusion 25 and the inner side of the baffle 22. The clearance step design provides space for bending and connecting the electronic wire 4, with the lead end extending radially and the end of the electronic wire 4 extending axially from the wire hole 25a, the two directions being staggered to facilitate the winding and fixing of the lead end and the electronic wire 4.

[0021] In some possible embodiments, the protrusion 25 is cylindrical, and the outer shell 1 is rectangular in shape with a mounting groove 11 that fits into the base body 2. The rectangular shell design facilitates positioning and installation on the circuit board while providing good mechanical protection against external mechanical stress that could damage the base body 2 and the coil 3.

[0022] In some possible embodiments, a notch 13 is formed on the housing 1 at a position corresponding to the second through hole, allowing the electronic wire 4 to be bent through the notch 13 and pass through the wire hole 25a. The notch 13 is designed to facilitate the lead-out and bending of the electronic wire 4, simplifying the assembly process and improving production efficiency.

[0023] In some possible embodiments, mounting portions 14 are also provided on opposite sides of the housing 1, and mounting portions 14 are provided with mounting through holes 14a. The design of the mounting through holes 14a facilitates the fixed installation of the inductor on the circuit board or other equipment, improves the flexibility and convenience of use, and can adapt to a variety of different installation scenarios and needs.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A choke coil inductor, characterized by, The device includes an outer shell (1) and a base body (2). The base body (2) has a first through hole (21) at its center for mounting a rod-shaped magnetic core (5). The outer periphery of the base body (2) is used for winding a coil (3). Both ends of the base body (2) are provided with baffles (22). The baffles (22) have grooves (23) on them. Soft ferrite magnetic sheets (24) are attached to the grooves (23). Both corners of the base body (2) have radially extending protrusions (25). The protrusions (25) have axially extending wire holes (25a). The outer shell (1) has a mounting groove (11) for placing the base body (2). The bottom of the mounting groove (11) is provided with a second through hole at the position corresponding to the protrusion (25). One end of each of the two electronic wires (4) passes through the two wire holes (25a) and is electrically connected to the lead end of the coil (3).

2. A transformer inductor according to claim 1, wherein A groove (26) is formed on the inner side of the baffle (22), and the groove (26) extends from the middle of the baffle (22) to the protrusion (25).

3. A transformer inductor according to claim 2, wherein The thickness of the protrusion (25) is smaller than that of the baffle (22), and a clearance step is formed between the protrusion (25) and the inner side of the baffle (22).

4. A choke coil inductor according to claim 1, characterized in that, The protrusion (25) is cylindrical, and the outer shell (1) is rectangular in shape, with the mounting groove (11) on it being adapted to the base body (2).

5. A choke coil inductor according to claim 1, characterized in that, A notch (13) is formed on the outer casing (1) at the position corresponding to the second through hole, and the electronic wire (4) can be bent from the notch (13) and pass through the wire hole (25a).

6. A choke coil inductor according to claim 1, characterized in that, The outer shell (1) is provided with mounting portions (14) on opposite sides, and mounting through holes (14a) are provided on the mounting portions (14).

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