Symmetrical split type inductor structure

Abstract

The utility model discloses a symmetrical split type inductor structure, and relates to the technical field of inductor structures. According to the utility model, the distance between the two magnetic cores can be adjusted and locked through the adjusting and locking mechanism, so that the differential mode inductance value can be adjusted by adjusting the size of the air gap of the middle column of the magnetic core; after the positioning connecting plates on the telescopic connecting plate group are matched and clamped with the positioning grooves in the magnetic cores, the length can be adjusted through the arranged telescopic connecting plate group, so that the distance between the two magnetic cores is adjusted, and the adjustment of the differential mode inductance value can be realized; the design that the positioning connecting rods in the positioning grooves are matched with the positioning holes formed in the positioning connecting plates enables the telescopic connecting plate sets to be quickly positioned, efficiency is improved, the fixing stability of the two magnetic cores is also improved, and due to the arrangement of the two telescopic connecting plate sets, the fixing stability between the two magnetic cores is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of inductance structures, and specifically relates to a symmetric split inductance structure. Background Technique

[0002] According to the Chinese authorized patent with the application number CN202223375375.5, a symmetric split inductance structure is disclosed, which includes two "mountain"-shaped magnetic cores and two coil skeletons with a "I"-shaped cross-section. The two coil skeletons are symmetrically installed on the left and right between the two magnetic cores, and the two magnetic cores are connected into one body through a "U"-shaped fixed steel frame. The utility model is applicable to medium and small power supplies, adopts a common-mode and differential-mode integrated structure, reduces the number of devices, saves layout space, meets the requirement of suppressing common-mode noise signals, and increases the impedance for suppressing high-frequency differential-mode noise signals, which can further improve the anti-EMI ability. It uses a high-permeability manganese-zinc ferrite magnetic core, the side column cross-section is cylindrical, the middle column cross-section is rectangular, the side columns form the main magnetic circuit of the common mode, the middle column forms the main magnetic circuit of the differential mode, the magnetic cores are symmetrically split and assembled, fixed by a fixed steel clip, and an air gap is opened in the middle column of the magnetic core. By adjusting the size of the air gap in the middle column of the magnetic core, the differential-mode inductance can be adjusted. The two magnetic cores are only connected into one body through a "U"-shaped fixed steel frame, but the fixed steel frame is fixed and cannot adjust the air gap between the two middle columns of the magnetic cores, so it is difficult to adjust the differential-mode inductance. Content of the Utility Model

[0003] To solve the defects existing in the prior art, the utility model provides a symmetric split inductance structure.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] A symmetric split inductance structure of the utility model includes two "mountain"-shaped magnetic cores and two "I"-shaped coil skeletons. The two coil skeletons are symmetrically installed on both sides between the two magnetic cores. The two magnetic cores are connected by an adjustment and locking mechanism arranged on both sides of the magnetic cores. The adjustment and locking mechanism includes positioning grooves arranged in the middle of the two magnetic cores. There are two telescopic connecting plate groups between the two positioning grooves. The two ends of the telescopic connecting plate groups are respectively provided with positioning connecting plates matching the two positioning grooves. The inside of the positioning groove is provided with a vertical positioning connecting rod, and the positioning connecting plate is provided with a positioning hole matching the positioning connecting rod.

[0006] As a preferred technical solution of the utility model, the telescopic connecting plate group includes a connecting plate connected to one of the positioning connecting plates and a connecting sleeve plate connected to the other positioning connecting plate, and one end of the connecting sleeve plate is sleeved with the opposite end on the connecting plate.

[0007] As a preferred technical solution of the utility model, the connecting sleeve is provided with a gap adjustment component for adjusting the length of the telescopic connecting plate group.

[0008] As a preferred technical solution of the utility model, the gap adjustment assembly includes a limit block arranged on the connecting plate at one end inside the connecting sleeve, the limit block is provided with a spring pin, and the connecting sleeve is provided with a plurality of limit holes adapted to the spring pin.

[0009] As a preferred technical solution of the utility model, the gap adjustment component includes an adjustment screw arranged inside the connecting sleeve via a rotating shaft, and a threaded connection groove matching the adjustment screw is provided on one end of the connecting plate located inside the connecting sleeve.

[0010] As a preferred technical solution of the utility model, a rotating wheel is provided at the outer end of the adjusting screw.

[0011] The beneficial effects of the utility model are:

[0012] 1. This symmetrical split inductor structure can adjust and lock the distance between the two magnetic cores through the adjustment and locking mechanism, so that the differential mode inductance can be adjusted by adjusting the size of the air gap in the middle column of the magnetic core; after the positioning connecting plate on the telescopic connecting plate group is matched and clamped with the positioning groove on the magnetic core, the length of the telescopic connecting plate group can be adjusted, so as to adjust the distance between the two magnetic cores, and then the differential mode inductance can be adjusted; wherein, the positioning connecting rod inside the positioning groove is matched with the positioning hole on the positioning connecting plate, so that the telescopic connecting plate group can be quickly positioned, which improves efficiency and also improves the stability of the fixation of the two magnetic cores, and the provision of the two telescopic connecting plate groups makes the fixation stability between the two magnetic cores higher.

[0013] 2. For this symmetrical split inductor structure, when adjusting the length of the telescopic connecting plate group, press the spring latch downward to compress the spring latch and adjust the total length of the connecting plate and the connecting sleeve. After adjusting the total length of the connecting plate and the connecting sleeve, the spring latch is in a normal extension state under the action of the elastic potential energy of the spring latch, and the movable pin of the spring latch enters the corresponding limit hole on the connecting sleeve, so that the total length of the connecting plate and the connecting sleeve can be locked, thereby adjusting the air gap between the two core center columns.

[0014] 3. For this symmetrical split inductor structure, when adjusting the length of the telescopic connecting plate group, the rotating wheel drives the adjusting screw to rotate, and the adjusting screw is threadedly connected to the threaded connecting groove opened at the inner end of the connecting plate, so that the total length of the connecting plate and the connecting sleeve can be adjusted. Since it is a threaded connection, the total length adjustment of the connecting plate and the connecting sleeve is completed after the rotation stops, and the length adjustment of the telescopic connecting plate group is completed, thereby completing the adjustment of the air gap between the two core center columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of a symmetrical split inductor structure embodiment 1 of the utility model;

[0017] Figure 2 It is a structural schematic diagram of an adjustment and locking mechanism of Embodiment 1 of a symmetrical split inductor structure of the utility model;

[0018] Figure 3 It is a structural cross-sectional view of a gap adjustment component of Embodiment 1 of a symmetrical split inductor structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a symmetrical split inductor structure embodiment 2 of the utility model;

[0020] Figure 5 It is a structural cross-sectional view of an adjustment locking mechanism of Embodiment 2 of a symmetrical split inductor structure of the utility model.

[0021] In the figure: 1. magnetic core; 2. coil skeleton; 3. adjustment locking mechanism; 4. positioning groove; 5. telescopic connecting plate group; 6. positioning connecting plate; 7. positioning connecting rod; 8. positioning hole; 9. connecting plate; 10. connecting sleeve plate; 11. gap adjustment assembly; 12. limit block; 13. spring latch; 14. limit hole; 15. adjusting screw; 16. threaded connection groove; 17. rotating wheel. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example 1: Figure 1 , Figure 2 and Figure 3As shown, the utility model is a symmetrical split inductor structure, comprising two "mountain"-shaped magnetic cores 1 and two "I"-shaped coil skeletons 2, the two coil skeletons 2 are symmetrically installed on both sides between the two magnetic cores 1, and the two magnetic cores 1 are connected by an adjustment locking mechanism 3 arranged on both sides of the magnetic core 1, the adjustment locking mechanism 3 comprises a positioning groove 4 arranged in the middle of the two magnetic cores 1, two telescopic connecting plate groups 5 are arranged between the two positioning grooves 4, and the two end ends of the telescopic connecting plate group 5 are respectively provided with positioning connecting plates 6 matching the two positioning grooves 4, a vertical positioning connecting rod 7 is arranged inside the positioning groove 4, and a positioning hole 8 matching the positioning connecting rod 7 is opened on the positioning connecting plate 6.

[0024] Among them, the telescopic connecting plate group 5 includes a connecting plate 9 connected to one of the positioning connecting plates 6 and a connecting sleeve 10 connected to the other positioning connecting plate 6, and one end of the connecting sleeve 10 is sleeved with the opposite end of the connecting plate 9, and the connecting sleeve 10 is provided with a gap adjustment component 11 for adjusting the length of the telescopic connecting plate group 5, and the gap adjustment component 11 includes a limit block 12 arranged on the connecting plate 9 at one end inside the connecting sleeve 10, and the limit block 12 is provided with a spring latch 13, and the connecting sleeve 10 is provided with a plurality of limit holes 14 adapted to the spring latch 13. When adjusting the length of the telescopic connecting plate 9 group 5, press the spring latch 13 downward so that the spring latch 13 is in a compressed state, and adjust the total length of the connecting plate 9 and the connecting sleeve 10. After adjusting the total length of the connecting plate 9 and the connecting sleeve 10, under the action of the elastic potential energy of the spring latch 13, the spring latch 13 is in a normal extension state, and the movable pin of the spring latch 13 will enter the corresponding limit hole 14 on the connecting sleeve 10, so that the total length of the connecting plate 9 and the connecting sleeve 10 can be locked, so that the air gap between the two core 1 columns can be adjusted.

[0025] When working, this symmetrical split inductor structure can adjust and lock the distance between the two magnetic cores 1 through the adjustment and locking mechanism 3, so that the differential mode inductance can be adjusted by adjusting the size of the air gap in the middle column of the magnetic core 1; after the positioning connecting plate 6 on the telescopic connecting plate group 9 group 5 is matched and clamped with the positioning groove 4 on the magnetic core 1, the length of the telescopic connecting plate group 9 group 5 can be adjusted, so as to adjust the distance between the two magnetic cores 1, and then the differential mode inductance can be adjusted; wherein, the positioning connecting rod 7 inside the positioning groove 4 is matched with the positioning hole 8 provided on the positioning connecting plate 6, so that the telescopic connecting plate group 9 group 5 can be quickly positioned, which improves efficiency and also improves the stability of fixing the two magnetic cores 1, and the setting of the two telescopic connecting plates 9 groups 5 makes the fixing stability between the two magnetic cores 1 higher.

[0026] Embodiment 2, as Figure 4 and Figure 5 As shown, the technical feature that distinguishes it from Example 1 is that the gap adjustment assembly 11 includes an adjusting screw 15 arranged inside the connecting sleeve 10 via a rotating shaft, and one end of the connecting plate 9 located inside the connecting sleeve 10 is provided with a threaded connection groove 16 matching the adjusting screw 15, and the outer end of the adjusting screw 15 is provided with a rotating wheel 17.

[0027] During operation, this symmetrical split inductor structure adjusts the length of the telescopic connecting plate 9 group 5 by rotating the rotating wheel 17, which drives the adjusting screw 15 to rotate. The adjusting screw 15 is threadedly connected to the threaded connecting groove 16 provided at the inner end of the connecting plate 9, so that the total length of the connecting plate 9 and the connecting sleeve 10 can be adjusted. Since it is a threaded connection, the total length adjustment of the connecting plate 9 and the connecting sleeve 10 is completed after the rotation stops, and the length adjustment of the telescopic connecting plate 9 group 5 is completed, thereby completing the adjustment of the air gap between the two core 1 middle columns.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A symmetric split-type inductor structure, comprising two "mountain"-shaped magnetic cores (1) and two "I"-shaped coil skeletons (2). Characterized in that, The two coil skeletons (2) are symmetrically installed on both sides between the two magnetic cores (1). The two magnetic cores (1) are connected by an adjustment and locking mechanism (3) provided on both sides of the magnetic cores (1). The adjustment and locking mechanism (3) includes positioning grooves (4) provided in the middle of the two magnetic cores (1). Between the two positioning grooves (4), there are two telescopic connecting plate groups (5). The two ends of the telescopic connecting plate group (5) are respectively provided with positioning connecting plates (6) that match the two positioning grooves (4). Inside the positioning groove (4), there is a vertically arranged positioning connecting rod (7). The positioning connecting plate (6) is provided with a positioning hole (8) that matches the positioning connecting rod (7).

2. A symmetric split-type inductor structure according to claim 1, Characterized in that, The telescopic connecting plate group (5) includes a connecting plate (9) connected to one of the positioning connecting plates (6) and a connecting sleeve plate (10) connected to the other positioning connecting plate (6), and one end of the connecting sleeve plate (10) is sleeved with the opposite end on the connecting plate (9).

3. A symmetric split-type inductor structure according to claim 2, Characterized in that, The connecting sleeve plate (10) is provided with a gap adjustment component (11) for adjusting the length of the telescopic connecting plate group (5).

4. A symmetric split-type inductor structure according to claim 3, Characterized in that, The gap adjustment component (11) includes a limit block (12) provided at one end of the connecting plate (9) inside the connecting sleeve plate (10). A spring bolt (13) is provided on the limit block (12). The connecting sleeve plate (10) is provided with a plurality of limit holes (14) that match the spring bolt (13).

5. A symmetric split-type inductor structure according to claim 3, Characterized in that, The gap adjustment component (11) includes an adjustment screw (15) arranged inside the connecting sleeve plate (10) via a rotating shaft. One end of the connecting plate (9) inside the connecting sleeve plate (10) is provided with a threaded connection groove (16) that matches the adjustment screw (15).

6. A symmetric split-type inductor structure according to claim 5, Characterized in that, A rotating wheel (17) is provided at the outer end of the adjustment screw (15).

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