SQ flat wire common mode inductor

Abstract

The utility model discloses an SQ flat wire common mode inductor which comprises a lower installation protective cover, an upper sealing top cover is detachably arranged on the lower installation protective cover, heat dissipation through holes are formed in the two sides of the lower installation protective cover, connecting pins are detachably installed at the bottom of the lower installation protective cover through an abutting connection assembly, and an installation assembly is installed in the lower installation protective cover. The beneficial effects of the utility model are that: the structure is simple, the pin is a detachable installation structure, the replacement is convenient, the welding ends of the coil and the pin can be effectively fixed in an auxiliary manner, the installation is convenient, the installation is simple, the installation is convenient, the installation is convenient, and the cost is low. And the assembly work of the flat working wire core is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of common mode inductor technology, and more specifically, to an SQ flat wire common mode inductor. Background Technology

[0002] SQ flat-wire common-mode inductors are a special type of flat-wire common-mode inductor with an SQ-shaped coil structure. Compared to traditional round coils, SQ flat-wire common-mode inductors have a lower height and a larger surface area, making them more suitable for high-density circuit boards and applications with limited space. They can effectively suppress common-mode noise and provide stable power and signal quality, which makes them widely used in communication equipment, computers, and industrial control.

[0003] In board design, common mode inductors also serve as EMI filters, used to suppress the outward radiation of electromagnetic waves generated by high-speed signal lines. Currently, most common mode inductor pins have a fixed structure, making inductor installation inconvenient. Furthermore, existing common mode inductors cannot provide auxiliary fixation for the coil solder joints, which can easily cause the solder joints to detach. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose an SQ flat line common mode inductor.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an SQ flat wire common mode inductor, including a lower mounting protective cover, an upper sealing top cover detachably mounted on the lower mounting protective cover, heat dissipation holes on both sides of the lower mounting protective cover, a connection pin detachably mounted on the bottom of the lower mounting protective cover through a contact connection component, a mounting component installed inside the lower mounting protective cover, a flat working wire core installed inside the mounting component, and a detachable connection between the lower mounting protective cover and the upper sealing top cover through an elastic connector.

[0006] Preferably, the mounting assembly includes two supporting side plates, with a connecting partition integrally connected between the supporting side plates. The supporting side plates and the connecting partition form an assembly frame. Abutment limiting blocks are symmetrically provided on the outer side of the supporting side plates. The assembly frame is assembled inside the lower mounting protective cover through the abutment limiting blocks.

[0007] Preferably, mounting posts are installed on both sides of the connecting partition between the support side plates, and the flat working wire core is sleeved on the mounting posts. The support side plates and the connecting partition are both installed on the lower support base plate, and the lower support base plate is installed in the lower mounting protective cover by fixing screws. The bottom of the lower support base plate has a wire threading opening.

[0008] Preferably, the contact connection assembly includes four sets of connecting posts installed at the bottom of the lower mounting protective cover. The top center of the connecting post is provided with a flat interface that connects to the end of the flat working wire core, and elastic limiting pieces are provided on both sides of the flat interface. An I-shaped metal block is embedded in the connecting post below the flat interface.

[0009] Preferably, the bottom of the connecting post is provided with an internal threaded connecting cavity, the bottom end of the I-shaped metal block extends into the internal threaded connecting cavity, and the top of the connecting pin is integrally connected with a connector, which is threadedly connected to the internal threaded connecting cavity and contacts the bottom end of the I-shaped metal block.

[0010] Preferably, the elastic connector includes connecting blocks fixed on both sides of the outer wall of the lower mounting protective cover, an L-shaped positioning metal piece integrally connected to the connecting block, and an arc-shaped bending part on the L-shaped positioning metal piece, the top of the L-shaped positioning metal piece being connected to the upper sealing top cover by screws.

[0011] This invention provides an SQ flat wire common mode inductor, with the following advantages:

[0012] The internal structure is protected by a detachable upper sealing cover mounted on the lower protective cover. The heat dissipation holes improve the contact with the outside air and provide heat dissipation. The contact connection component facilitates the installation and replacement of the connection pins and ensures the stability of the solder joint. The mounting component is used for the assembly of the flat working core. The elastic connector facilitates the connection between the lower protective cover and the upper sealing cover. This utility model has a simple structure with detachable pins for easy replacement. It can also effectively assist in fixing the solder joints of the coil and the pins and facilitate the assembly of the flat working core. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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 This is a front view of an SQ flat-wire common-mode inductor according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of a protective cover mounted on the bottom of an SQ flat wire common mode inductor according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the mounting component in an SQ flat wire common mode inductor according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structure of an abutting connection component in an SQ flat wire common mode inductor according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the structure of an elastic connector in an SQ flat wire common mode inductor according to an embodiment of the present invention.

[0019] In the picture:

[0020] 1. Lower protective cover; 2. Upper sealed top cover; 3. Heat dissipation hole; 4. Contact connection assembly; 5. Connecting pin; 6. Mounting assembly; 7. Flat working wire core; 8. Elastic connector; 9. Supporting side plate; 10. Connecting partition; 11. Contact limiting block; 12. Mounting support column; 13. Lower supporting base plate; 14. Fixing screw; 15. Wire through opening; 16. Connecting post; 17. Flat interface; 18. Elastic limiting piece; 19. I-shaped metal block; 20. Internal threaded connection cavity; 21. Connector; 22. Connecting block; 23. L-shaped positioning metal piece; 24. Arc-shaped bend; 25. Screw. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This utility model provides an SQ flat wire common mode inductor, including a lower mounting protective cover 1, an upper sealing top cover 2 detachably mounted on the lower mounting protective cover 1, and heat dissipation holes 3 on both sides of the lower mounting protective cover 1. The upper sealing top cover 2 detachably mounted on the lower mounting protective cover 1 achieves the protection effect of the internal structure. The heat dissipation holes 3 can improve its contact effect with the outside air and provide heat dissipation effect. The bottom of the lower mounting protective cover 1 is detachably mounted with a connecting pin 5 through a contact connection component 4. An installation component 6 is installed inside the lower mounting protective cover 1, and a flat working wire core 7 is installed inside the installation component 6. The lower mounting protective cover 1 and the upper sealing top cover 2 are detachably connected by an elastic connector 8. The contact connection component 4 facilitates the installation and replacement of the connecting pin 5 and ensures the stability of the solder joint. The installation component 6 is used for the assembly of the flat working wire core 7. The elastic connector 8 facilitates the connection between the lower mounting protective cover 1 and the upper sealing top cover 2.

[0023] In one embodiment, please refer to the appendix to the specification. Figure 3As shown, the mounting assembly 6 includes two supporting side plates 9, with a connecting partition 10 integrally connected between them. The supporting side plates 9 and the connecting partition 10 form an assembly frame. Symmetrical abutment limiting blocks 11 are provided on the outer sides of the supporting side plates 9. The assembly frame is mounted inside the lower mounting protective cover 1 via the abutment limiting blocks 11. Mounting supports 12 are installed on both sides of the connecting partition 10 between the supporting side plates 9, and flat working wire cores 7 are sleeved on the mounting supports 12. The supporting side plates 9 and the connecting partition 10 are both mounted on a lower supporting base plate 13, which is installed in the lower mounting protective cover 1 by fixing screws 14. A wire-passing opening 15 is provided at the bottom of the lower supporting base plate 13. The mounting supports 12 are fixed to the assembly frame formed by the supporting side plates 9 and the connecting partition 10, and then the flat working wire cores 7 are wound around it. The abutment limiting blocks 11 facilitate the positioning of the assembly frame within the lower mounting protective cover 1, and the mounting is then completed by fixing screws 14.

[0024] In one embodiment, please refer to the appendix to the specification. Figure 4 As shown, the contact connection assembly 4 includes four sets of connecting posts 16 installed at the bottom of the lower mounting protective cover 1. A flat interface 17, connecting to the end of the flat working core 7, is located at the top center of each connecting post 16. Elastic limiting pieces 18 are provided on both sides of the flat interface 17. An I-shaped metal block 19 is embedded in the connecting post 16 below the flat interface 17. An internally threaded connection cavity 20 is provided at the bottom of the connecting post 16. The bottom end of the I-shaped metal block 19 extends into the internally threaded connection cavity 20. A connector 21 is integrally connected to the top of the connecting pin 5, and the connector 21 is threaded into the internally threaded connection cavity 20 and contacts the bottom end of the I-shaped metal block 19. The end of the flat working core 7 is welded to the I-shaped metal block 19 through the flat interface 17 on the connecting post 16, and the elastic limiting pieces 18 provide auxiliary limiting. The top end of the connecting pin 5 is connected to the bottom of the I-shaped metal block 19 through the connector 21, thus achieving the overall connection.

[0025] In one embodiment, please refer to the appendix to the specification. Figure 5 As shown, the elastic connector 8 includes connecting blocks 22 fixed to both sides of the outer wall of the lower mounting protective cover 1. An L-shaped positioning metal piece 23 is integrally connected to the connecting block 22, and the L-shaped positioning metal piece 23 has an arc-shaped bending portion 24. The top of the L-shaped positioning metal piece 23 is connected to the upper sealing top cover 2 by screws 25. The L-shaped positioning metal piece 23, in conjunction with the screws 25, facilitates the connection between the lower mounting protective cover 1 and the upper sealing top cover 2. The arc-shaped bending portion 24 facilitates the bending of the L-shaped positioning metal piece 23 during disassembly.

[0026] In practical applications, the upper sealing top cover 2 is detachably mounted on the lower protective cover 1 to achieve the protection effect of the internal structure. The heat dissipation through hole 3 can improve its contact with the outside air and provide heat dissipation. The contact connection component 4 facilitates the installation and replacement of the connection pin 5, and at the same time ensures the stability of the welding joint. The mounting component 6 is used for the assembly of the flat working core 7. The elastic connector 8 facilitates the connection between the lower protective cover 1 and the upper sealing top cover 2. This utility model has a simple structure, and its pins are detachable mounting structures, which are convenient for replacement. At the same time, it can effectively assist in fixing the welding ends of the coil and the pins, and facilitates the assembly of the flat working core 7.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An SQ flat wire common mode inductor, characterized in that, The system includes a lower mounting protective cover (1), a detachable upper sealing top cover (2) on the lower mounting protective cover (1), heat dissipation holes (3) on both sides of the lower mounting protective cover (1), a connecting pin (5) detachably mounted on the bottom of the lower mounting protective cover (1) via a contact connection assembly (4), a mounting assembly (6) installed inside the lower mounting protective cover (1), a flat working wire core (7) installed inside the mounting assembly (6), and a detachable connection between the lower mounting protective cover (1) and the upper sealing top cover (2) via an elastic connector (8). The contact connection assembly (4) includes four sets of connecting posts (16) installed on the bottom of the lower mounting protective cover (1). (16) has a flat interface (17) at the top center that connects to the end of the flat working core (7), and elastic limiting pieces (18) are provided on both sides of the flat interface (17). An I-shaped metal block (19) is embedded in the connecting post (16) below the flat interface (17). The bottom of the connecting post (16) has an internal threaded connection cavity (20). The bottom end of the I-shaped metal block (19) extends into the internal threaded connection cavity (20). The top of the connecting pin (5) is integrally connected to a connector (21), and the connector (21) is threadedly connected to the internal threaded connection cavity (20) and contacts the bottom end of the I-shaped metal block (19).

2. The SQ flat wire common mode inductor according to claim 1, characterized in that, The mounting assembly (6) includes two supporting side plates (9), and a connecting partition (10) is integrally connected between the supporting side plates (9). The supporting side plates (9) and the connecting partition (10) form an assembly frame. Abutment limiting blocks (11) are symmetrically provided on the outer side of the supporting side plates (9). The assembly frame is assembled in the lower mounting protective cover (1) through the abutment limiting blocks (11).

3. An SQ flat wire common mode inductor according to claim 2, characterized in that, Mounting posts (12) are installed on both sides of the connecting partition (10) between the supporting side plates (9), and the flat working wire core (7) is sleeved on the mounting posts (12). The supporting side plates (9) and the connecting partition (10) are both installed on the lower supporting base plate (13), and the lower supporting base plate (13) is installed in the lower mounting protective cover (1) by fixing screws (14). The bottom of the lower supporting base plate (13) has a wire threading opening (15).

4. An SQ flat wire common mode inductor according to claim 3, characterized in that, The elastic connector (8) includes connecting blocks (22) fixed on both sides of the outer wall of the lower mounting protective cover (1). An L-shaped positioning metal piece (23) is integrally connected to the connecting block (22), and the L-shaped positioning metal piece (23) is provided with an arc-shaped bending part (24). The top of the L-shaped positioning metal piece (23) is connected to the upper sealing top cover (2) by screws (25).

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