Coil framework insulation structure of inductor

Abstract

The utility model provides an inductor coil framework insulation structure, the inductor comprises a framework and a winding wound outside the framework, the framework is sleeved with a plastic outer shell, the plastic outer shell comprises an upper shell and a lower shell which are mutually spliced, and the upper shell and the lower shell are mutually connected. Positioning assemblies used for positioning the two ends of the insulating sheet are symmetrically arranged on the plastic shell, each positioning assembly comprises a first positioning frame and a second positioning frame which are arranged on the upper shell and the lower shell respectively, and a gap exists between the first positioning frame and the second positioning frame; the insulation structure can overcome the defects that in the prior art, a sliding groove is too long, burrs are likely to exist in the sliding groove, and an insulation sheet is difficult to penetrate through.

Description

Technical Field

[0001] The utility model relates to the technical field of inductors, in particular to a coil skeleton insulation structure of an inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. It has a winding inside, which is composed of a coil wound on a magnetic core. There are usually two leads at both ends for connecting the circuit. In the prior art, in the utility model patent with patent publication number CN204332587U, a toroidal vertical common mode inductor is disclosed, which includes a base, a toroidal magnetic core, a coil, a plastic shell and an insulating sheet. The plastic shell is installed in the toroidal magnetic core, the coil is wound outside the plastic shell and has two pins at both ends. The insulating sheet needs to be manually inserted into the plastic shell to separate the coils of the two pins. However, during the production process, it was found that the slide groove was set too long, and burrs were easily present in the slide groove, which made it difficult for the insulating sheet to pass through, thereby seriously affecting the production efficiency. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that the slide groove is too long, burrs are easily present in the slide groove, making it difficult for the insulating sheet to pass through, thereby seriously affecting the manufacturing efficiency, thereby providing a coil skeleton insulation structure of the inductor that is convenient for the insulating sheet to pass through.

[0004] To this end, the utility model provides a coil skeleton insulation structure of an inductor, the inductor includes a skeleton and a winding wound on the outside of the skeleton, the outside of the skeleton is covered with a plastic shell, the plastic shell includes an upper shell and a lower shell spliced ​​together, and the plastic shell is symmetrically provided with positioning components for positioning both ends of the insulating sheet, the positioning components include a first positioning frame and a second positioning frame respectively arranged at the upper shell and the lower shell, and there is a gap between the first positioning frame and the second positioning frame.

[0005] Further: the first positioning frame includes a first front positioning frame and a first rear positioning frame respectively arranged at the upper shell and the lower shell, the second positioning frame includes a second front positioning frame and a second rear positioning frame respectively arranged at the upper shell and the lower shell, there is a gap between the first front positioning frame and the first rear positioning frame, and there is a gap between the second front positioning frame and the second rear positioning frame.

[0006] Furthermore: the first front positioning frame, the first rear positioning frame, the second front positioning frame and the second rear positioning frame have the same structure, and include a first limiting column and a second limiting column which are arranged opposite to each other and can be deformed from the middle to both sides, and a sliding groove is provided between the first limiting column and the second limiting column for the insulating sheet to be horizontally arranged between the plastic shell.

[0007] Further: the upper shell and the lower shell are provided with a buckle device for connecting the two, and the buckle device includes a positioning block provided on one side and a positioning groove provided on the other side and adapted to the positioning block. Further: the positioning block is provided on the upper shell, and the positioning groove is provided on the lower shell, and the positioning groove is formed by a first positioning rod and a second positioning rod, and the distance between the first positioning rod and the second positioning rod is less than the width of the positioning block. The technical solution of the utility model has the following advantages:

[0008] 1. The utility model provides a coil skeleton insulation structure of an inductor, wherein there is a gap between a first positioning frame and a second positioning frame. When installing an insulating sheet, the insulating sheet first passes through the first insulating frame, and then passes through the gap in the middle to allow the insulating sheet to pass through the second positioning frame. There is a gap between the first positioning frame and the second positioning frame, so the contact area between the insulating sheet and the first positioning frame and the second positioning frame is small. Even if there are burrs between the first positioning frame and the second positioning frame and the insulating sheet, the insulating sheet can be relatively easily pushed into the first positioning frame and the second positioning frame, and the setting of a slide groove between the first positioning frame and the second positioning frame is omitted, thereby saving materials and reducing material costs.

[0009] 2. The utility model provides a coil skeleton insulation structure of an inductor, wherein the structures of the first front positioning frame, the first rear positioning frame, the second front positioning frame and the second rear positioning frame are consistent, and the structure comprises a first limiting column and a second limiting column which are relatively arranged, wherein the distance between the first limiting column and the second limiting column is smaller than the thickness of the insulating sheet, and during the installation of the insulating sheet, when the insulating sheet is inserted into the first limiting column and the second limiting column, the first limiting column and the second limiting column will deform from the middle toward the two sides, and due to the elastic deformation force of the first limiting column and the second limiting column themselves, the first limiting column and the second limiting column will clamp the insulating sheet tightly, thereby preventing the insulating sheet from detaching from the first limiting column and the second limiting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a front structural schematic diagram of the coil skeleton insulation structure of the inductor;

[0012] Figure 2 A schematic diagram of the back structure of the coil skeleton insulation structure of the inductor;

[0013] Figure 3 It is a side structural schematic diagram of the coil skeleton insulation structure of the inductor;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the coil skeleton insulation structure of the inductor.

[0015] Description of reference numerals:

[0016] 1. Plastic shell; 10. Upper shell; 11. Lower shell; 2. Winding; 3. Insulating sheet; 4. First positioning frame; 41. First left positioning frame; 42. First right positioning frame; 5. Second positioning frame; 51. Second left positioning frame; 52. Second right positioning frame; 6. First limiting column; 61. Second limiting column; 62. Slide; 7. Positioning block; 8. Positioning slot; 81. First positioning rod; 82. Second positioning rod. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example

[0022] The present embodiment provides a coil skeleton insulation structure of an inductor, the inductor includes a skeleton and a winding 2 wound on the outside of the skeleton, the skeleton is covered with a plastic shell 1, the plastic shell 1 includes an upper shell 10 and a lower shell 11 spliced ​​together, and the plastic shell 1 is symmetrically provided with positioning components for positioning both ends of an insulating sheet 3, the positioning components include a first positioning frame 4 and a second positioning frame 5 respectively arranged at the upper shell and the lower shell, and there is a gap between the first positioning frame 4 and the second positioning frame 5.

[0023] The above specific improvements are: Figure 1 , Figure 2 and Figure 4 As shown, compared with the prior art, there is a gap between the first positioning frame 4 and the second positioning frame 5. When installing the insulating sheet 3, the insulating sheet 3 first passes through the first insulating frame, and then passes through the gap in the middle to make the insulating sheet 3 pass through the second positioning frame 5. There is a gap between the first positioning frame 4 and the second positioning frame 5, so the contact area between the insulating sheet 3 and the first positioning frame 4 and the second positioning frame 5 is small. Even if there are burrs between the first positioning frame 4 and the second positioning frame 5 and the insulating sheet 3, the insulating sheet 3 can be relatively easily pushed into the first positioning frame 4 and the second positioning frame 5, and the setting of the slide groove 62 between the first positioning frame 4 and the second positioning frame 5 is omitted, which can save materials and reduce material costs.

[0024] On the basis of the above embodiment: the first positioning frame 4 includes a first front positioning frame 41 and a first rear positioning frame 42 respectively arranged on both sides of the upper shell 10 near the end; the second positioning frame 5 includes a second front positioning frame 51 and a second rear positioning frame 52 respectively arranged on both sides of the lower shell 11 near the end; there is a gap between the first front positioning frame 41 and the second front positioning frame 51, and there is a gap between the first rear positioning frame 42 and the second rear positioning frame 52.

[0025] The above specific improvements are: Figure 1 , Figure 2 and Figure 4 As shown, the first front positioning frame and the second front positioning frame are both located on the upper shell 10, and the first rear positioning frame and the second rear positioning frame are located on the lower shell 11. When installing the insulating sheet 3, the two ends of the insulating sheet 3 are respectively inserted from the first front positioning frame and the second front positioning frame, and extend to the first rear positioning frame and the second rear positioning frame.

[0026] On the basis of the above embodiments: the first front positioning frame 41, the first rear positioning frame 42, the second front positioning frame 51 and the second rear positioning frame 52 have the same structure, which include a first limiting column 6 and a second limiting column 61 which are relatively arranged and can be deformed from the middle to both sides, and a slide groove 62 is provided between the first limiting column 6 and the second limiting column 61 for the insulating sheet 3 to be horizontally arranged between the plastic shell 1.

[0027] The above specific improvements are: Figure 1-Figure 4 As shown, the structures of the first front positioning frame, the first rear positioning frame, the second front positioning frame and the second rear positioning frame are consistent, which include a first limiting column 6 and a second limiting column 61 that are relatively arranged, and the distance between the first limiting column 6 and the second limiting column 61 is smaller than the thickness of the insulating sheet 3. During the installation of the insulating sheet 3, when the insulating sheet 3 is inserted into the first limiting column 6 and the second limiting column 61, the first limiting column 6 and the second limiting column 61 will deform from the middle to both sides. Due to the elastic deformation force of the first limiting column 6 and the second limiting column 61 themselves, the first limiting column 6 and the second limiting column 61 will tightly clamp the insulating sheet 3, thereby preventing the insulating sheet 3 from detaching from the first limiting column 6 and the second limiting column 61.

[0028] On the basis of the above embodiment: a buckling device for connecting the upper shell 10 and the lower shell 11 is arranged on the side thereof, and the buckling device comprises a positioning block 7 arranged on one side and a positioning groove 8 arranged on the other side and adapted to the positioning block 7.

[0029] On the basis of the above embodiment: the positioning block 7 is arranged on the upper shell, the positioning groove 8 is arranged on the lower shell, the positioning groove 8 is formed by a first positioning rod 81 and a second positioning rod 82, and the distance between the first positioning rod 81 and the second positioning rod 82 is smaller than the width of the positioning block 7.

[0030] The above specific improvements are: Figure 3 As shown, in order to enable the upper shell 10 and the lower shell 11 to tightly wrap the skeleton, the buckling device is arranged at the connection between the upper shell 10 and the lower shell 11, a positioning block 7 is arranged at the upper shell 10, and a positioning groove 8 is arranged at the lower shell 11. When the upper shell 10 and the lower shell 11 are assembled, the positioning block 7 will be squeezed into the positioning groove 8, causing the first positioning rod 81 and the second positioning rod 82 to be deformed, until the positioning block 7 is completely squeezed into the positioning groove 8, the positioning block 7 and the positioning groove 8 are interference fit, thereby preventing the upper shell 10 and the lower shell 11 from separating.

[0031] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An inductor coil skeleton insulation structure, the inductor comprising a skeleton and a winding (2) wound outside the skeleton, characterized in that: The frame is externally covered with a plastic shell (1), the plastic shell (1) comprising an upper shell (10) and a lower shell (11) which are spliced ​​together, the plastic shell (1) is symmetrically provided with positioning components for positioning the two ends of the insulating sheet (3), the positioning components comprising a first positioning frame (4) and a second positioning frame (5) which are respectively arranged at the upper shell and the lower shell, and there is a gap between the first positioning frame (4) and the second positioning frame (5).

2. The coil skeleton insulation structure of an inductor according to claim 1, characterized in that: The first positioning frame (4) comprises a first front positioning frame (41) and a first rear positioning frame (42) respectively arranged at the upper shell (10) and the lower shell (11); the second positioning frame (5) comprises a second front positioning frame (51) and a second rear positioning frame (52) respectively arranged at the upper shell (10) and the lower shell (11); there is a gap between the first front positioning frame (41) and the first rear positioning frame (42); and there is a gap between the second front positioning frame (51) and the second rear positioning frame (52).

3. The coil skeleton insulation structure of an inductor according to claim 2, characterized in that: The first front positioning frame (41), the first rear positioning frame (42), the second front positioning frame (51) and the second rear positioning frame (52) have the same structure, and include a first limiting column (6) and a second limiting column (61) which are arranged opposite to each other and can be deformed from the middle to both sides, and a sliding groove (62) is provided between the first limiting column (6) and the second limiting column (61) for the insulating sheet (3) to be horizontally arranged between the plastic shell (1).

4. The coil skeleton insulation structure of an inductor according to any one of claims 1 to 3, characterized in that: The upper shell (10) and the lower shell (11) are provided with buckling devices for connecting the two on their sides, and the buckling devices include a positioning block (7) provided on one side and a positioning groove (8) provided on the other side and adapted to the positioning block (7).

5. The coil skeleton insulation structure of an inductor according to claim 4, characterized in that: The positioning block (7) is arranged on the upper shell, and the positioning groove (8) is arranged on the lower shell. The positioning groove (8) is formed by a first positioning rod (81) and a second positioning rod (82). The distance between the first positioning rod (81) and the second positioning rod (82) is smaller than the width of the positioning block (7).

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