A vertical dual-winding coupled inductor

Abstract

This utility model relates to the field of electronic component technology, and in particular to a vertical dual-winding coupled inductor. The vertical dual-winding coupled inductor of this utility model adopts a dual-winding structure design. The first winding is wound on a magnetic core, and the second winding is wound on a bushing base. The magnetic core is then inserted into the bushing base, so that the first winding and the second winding are combined. The magnetic core of the first winding increases the inductance of the second winding. After assembly, the base and the outer shell are installed to separate the windings. The staggered second wire outlet holes and wire slots ensure that the lead ends of the two windings can maintain a certain distance, reducing the chance of contact and achieving effective isolation, which can effectively avoid the risk of short circuits and failures.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, and in particular to a vertical dual-winding coupled inductor. Background Technology

[0002] Traditional coupled inductors often adopt a horizontal parallel winding structure. However, due to insufficient distance between the first and second windings and between the lead ends of the two windings, short circuits are prone to occur. Furthermore, the first and second windings are only insulated by insulating tape, resulting in poor insulation reliability. This can easily affect the function of the coupled coil assembly and lead to failure. Therefore, the failure rate of this traditional design is very high, causing great problems in terms of quality. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a vertical dual-winding coupled inductor, comprising a magnetic core with a first winding wound around its outer periphery, the first winding having two first lead ends; a sleeve base movably fitted around the magnetic core, the inner wall of the sleeve base having two sets of grooves for the two first lead ends to pass through; a second winding wound around the outer periphery of the sleeve base, the second winding having two second lead ends; two sets of second outlet holes for the two second lead ends to pass through on the outlet end of the sleeve base, the two sets of second outlet holes and the two sets of grooves being staggered; a base detachably mounted on the outlet end of the sleeve base; and a housing covering the outside of the sleeve base.

[0004] In some possible embodiments, the lead-out end of the magnetic core is provided with a first wire outlet hole adapted to the two first lead ends, the two sets of wire grooves are provided at positions corresponding to the two sets of first wire outlet holes, and the two sets of second wire outlet holes are staggered with the two sets of first wire outlet holes.

[0005] In some possible embodiments, one end of the sleeve base is provided with an anti-pressure groove adapted to the position of the two sets of first outlet holes, and the two first lead ends pass through the anti-pressure groove.

[0006] In some possible embodiments, the lead-out end of the sleeve base is provided with an anti-pressure groove for the two first lead ends to pass through at a position corresponding to the two sets of first lead holes.

[0007] In some possible embodiments, the base is provided with a plurality of winding posts, and all the first lead ends and the second lead ends are respectively wound around the corresponding winding posts.

[0008] In some possible embodiments, the lead-out end of the sleeve base is provided with a positioning protrusion, and the base is provided with a positioning notch that can cooperate with the positioning protrusion.

[0009] In some possible embodiments, the sleeve base has a positioning hole at the end away from the lead-out end, and the interior of the outer shell has a positioning protrusion that can cooperate with the positioning hole.

[0010] In some possible embodiments, a first mark is provided on the outer surface of the housing at a position corresponding to all the first lead ends, and a second mark is provided on the outer surface of the housing at a position corresponding to all the second lead ends.

[0011] In some possible embodiments, the housing is provided with heat dissipation holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model adopts a dual-winding structure design. The first winding is wound on the magnetic core, and the second winding is wound on the sleeve base. The magnetic core is then inserted into the sleeve base, so that the first winding and the second winding are combined. The magnetic core of the first winding increases the inductance of the second winding. After assembly, the base and the outer shell are installed to separate the windings. The staggered second wire outlet holes and wire grooves ensure that the lead ends of the two windings can maintain a certain distance, reduce the chance of contact and achieve effective isolation, which can effectively avoid the risk of short circuits and failures. Attached Figure Description

[0013] 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.

[0014] Figure 1 The structure of the vertical dual-winding coupled inductor provided in the embodiment of this utility model Figure 1 ; Figure 2 Explosion of the vertical double-winding coupled inductor provided in the embodiment of this utility model Figure 1 ; Figure 3 Exploded view of the magnetic core and sleeve base provided in the embodiment of this utility model; Figure 4 An exploded view of a portion of the structure of a vertical dual-winding coupled inductor provided in an embodiment of this utility model; Figure 5 A partial structural schematic diagram of a vertical dual-winding coupled inductor provided in an embodiment of this utility model; Figure 6 Explosion of the vertical double-winding coupled inductor provided in the embodiment of this utility model Figure 2 .

[0015] Reference numerals: magnetic core 10, first winding 11, first lead end 12, first outlet hole 13, sleeve base 20, second winding 21, second lead end 22, second outlet hole 23, anti-pressure groove 24, wire groove 25, positioning protrusion 26, positioning hole 27, base 30, winding post 31, positioning notch 32, outer shell 40, positioning protrusion 41, first mark 42, second mark 43. 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 6 The diagram illustrates a vertical dual-winding coupled inductor, comprising a magnetic core 10 with a first winding 11 wound around its outer periphery. The first winding 11 has two first lead ends 12. A sleeve base 20 is provided, in which the magnetic core 10 is movably inserted. Two sets of slots 25 are formed on the inner wall of the sleeve base 20 to allow the two first lead ends 12 to pass through. These slots 25 not only provide clearance, ensuring the smooth passage of the two first lead ends 12 during insertion of the magnetic core 10 into the sleeve base 20, but also limit the exit position of the two first lead ends 12. A second winding 21 is wound around the outer periphery of the sleeve base 20. The second winding 21 has two second lead ends 22. The lead-out end of the bushing base 20 is provided with two sets of second lead holes 23 for the two second lead ends 22 to pass through. The two sets of second lead holes 23 and the two sets of wire grooves 25 are staggered and can be arranged at 90° intervals around the circumference of the bushing base 20. The two first lead ends 12 and the two second lead ends 22 are led out from corresponding positions, maintaining a certain distance from each other and not contacting each other to avoid short circuits. The base 30 is detachably mounted on the lead-out end of the bushing base 20. The outer shell 40 is fitted over the outside of the bushing base 20 and can be clamped and fixed. The magnetic core 10 is a ferrite core, and the bushing base 20 is a phenolic resin base. The phenolic resin material has insulating properties to ensure the insulation effect between the two windings. The bottom end of the bushing base 20 is provided with a limiting structure that can stably support the magnetic core 10. The opening of the outer casing 40 actually engages and locks with the bottom outer periphery of the sleeve base 20, while completely enclosing the magnetic core 10 and the second winding 21 for protection. Of course, in some embodiments, the opening of the outer casing 40 can also engage with the base 30, thus completely protecting the magnetic core 10 and the sleeve base 20.

[0018] In some possible embodiments, refer to Figure 5 As shown, the lead-out end of the magnetic core 10 is provided with two sets of first lead-out holes 13 for the two first lead-out ends 12 of the first winding 11 to pass through. Two sets of wire grooves 25 are provided at positions corresponding to the two sets of first lead-out holes 13, and two sets of second lead-out holes 23 are staggered with the two sets of first lead-out holes 13. Furthermore, the lead-out end of the sleeve base 20 is provided with anti-pressure grooves 24 adapted to the two sets of first lead-out holes 13, and the two first lead-out ends 12 pass through the anti-pressure grooves 24. After the magnetic core 10 is inserted into the sleeve base 20, the two first lead-out ends 12 need to be bent outward at 90° and led out from the position of the anti-pressure groove 24. When the base 30 is installed, the space formed between the anti-pressure groove 24 and the base 30 can prevent the copper wire from being crushed, avoiding wire breakage or excessive impedance caused by copper wire deformation.

[0019] In some possible embodiments, refer to Figure 1 and Figure 4 As shown, the base 30 is provided with several winding posts 31, and all the first lead ends 12 and second lead ends 22 are respectively wound onto the corresponding winding posts 31. After the magnetic core 10 is inserted and combined with the sleeve base 20, the base 30 can be installed, and all the first lead ends 12 and second lead ends 22 are respectively wound onto the corresponding winding posts 31. After winding and soldering, a terminal for soldering to the PCB can be formed. Furthermore, the lead-out end of the sleeve base 20 is provided with a positioning protrusion 26, and the base 30 is provided with a positioning notch 32 that can cooperate with the positioning protrusion 26, which facilitates the positioning and installation of the base 30.

[0020] In some possible embodiments, refer to Figure 5 As shown, the sleeve base 20 has a positioning hole 27 at the end away from the lead-out end, and the housing 40 has a positioning protrusion 41 inside that mates with the positioning hole 27 for positioning and mounting the housing 40 and the sleeve base 20. Furthermore, a first mark 42 is provided on the outer surface of the housing 40 at a position corresponding to all the first lead ends 12, and a second mark 43 is provided on the outer surface of the housing 40 at a position corresponding to all the second lead ends 22, serving as identification marks for the first lead ends 12 and the second lead ends 22, achieving accurate positioning. In addition, the housing 40 has heat dissipation holes.

[0021] 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 vertical dual-winding coupled inductor, characterized in that, include: A magnetic core (10) has a first winding (11) wound around its outer periphery, and the first winding (11) has two first lead ends (12). A sleeve base (20) is movably fitted outside the magnetic core (10). The inner wall of the sleeve base (20) is provided with two sets of wire grooves (25) for the two first lead ends (12) to pass through. A second winding (21) is wound around the outer periphery of the sleeve base (20). The second winding (21) has two second lead ends (22). The lead-out end of the sleeve base (20) is provided with two sets of second wire outlet holes (23) for the two second lead ends (22) to pass through. The two sets of second wire outlet holes (23) and the two sets of wire grooves (25) are staggered. The base (30) is detachably mounted on the lead-out end of the sleeve base (20); The outer casing (40) is fitted over the outside of the sleeve base (20).

2. A vertical dual-winding coupled inductor according to claim 1, characterized in that, The magnetic core (10) has a first wire outlet hole (13) adapted to the two first wire ends (12) on the lead end. The two sets of wire grooves (25) are located at positions corresponding to the two sets of first wire outlet holes (13). The two sets of second wire outlet holes (23) are staggered with the two sets of first wire outlet holes (13).

3. A vertical dual-winding coupled inductor according to claim 2, characterized in that, The sleeve base (20) is provided with an anti-pressure groove (24) at one end that is adapted to the position of the two sets of first outlet holes (13), and the two first lead wire ends (12) pass out from the anti-pressure groove (24).

4. A vertical dual-winding coupled inductor according to claim 1, characterized in that, The base (30) is provided with a plurality of winding posts (31), and all the first lead end (12) and the second lead end (22) are respectively wound on the corresponding winding post (31).

5. A vertical dual-winding coupled inductor according to claim 1, characterized in that, The sleeve base (20) has a positioning protrusion (26) on its lead-out end, and the base (30) has a positioning notch (32) that can cooperate with the positioning protrusion (26).

6. A vertical dual-winding coupled inductor according to claim 1, characterized in that, The sleeve base (20) has a positioning hole (27) on one end away from the lead-out end, and the housing (40) has a positioning protrusion (41) inside that can cooperate with the positioning hole (27).

7. A vertical dual-winding coupled inductor according to claim 1, characterized in that, A first mark (42) is provided on the outer surface of the housing (40) at a position corresponding to all the first lead ends (12), and a second mark (43) is provided on the outer surface of the housing (40) at a position corresponding to all the second lead ends (22).

8. A vertical dual-winding coupled inductor according to claim 1, characterized in that, The outer casing (40) is provided with heat dissipation holes.

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