Embedded ultra-thin differential and common mode integrated inductor

By using embedded design and innovative connection methods, the problems of large thickness and unstable fixation of existing differential and common mode integrated inductors have been solved, achieving an ultra-thin and stable inductor structure, reducing costs and avoiding mutual interference between functional areas.

CN224287974UActive Publication Date: 2026-05-26GUANGDONG HEDONG TRANSFORMER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HEDONG TRANSFORMER CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing integrated differential and common mode inductors have a large structural thickness and are not securely fixed, which increases the cost of use, and the common mode and differential mode functional areas interfere with each other.

Method used

Employing an embedded design, the structure is assembled and disassembled, and the magnetic strip structure is assembled and disassembled. Rectangular slots, blocks, and threaded connections are used to form a bridging magnetic field with the magnetic strip plate, avoiding mutual interference between common mode and differential mode structures, and achieving an ultra-thin design.

Benefits of technology

It achieves ultra-thin inductor structure and stable connection, reduces overall thickness and usage cost, and avoids mutual interference between common mode and differential mode functional areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an embedded ultra-thin differential and common-mode integrated inductor, relating to the field of inductor technology. It includes a first winding post and a second winding post. A first coil is wound around the outer surface of the first winding post, and a second coil is wound around the outer surface of the second winding post. A first connecting plate is fixedly connected to one side of the first and second winding posts. Through a disassembly and fixing structure, the connecting plate can be disassembled and assembled using rectangular slots and rectangular blocks, and then fixed using threaded rods, first screw holes, and second screw holes. Finally, a fixing plate can be used to fix the first and second connecting plates. Simultaneously, the entire structure allows for an ultra-thin design of the base, the first coil, and the second coil. Furthermore, by incorporating pins and other structures to embed and connect the base and other components, the overall structure can achieve an ultra-thin design.
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Description

Technical Field

[0001] This utility model relates to the field of inductor technology, and in particular to an embedded ultra-thin differential and common-mode integrated inductor. Background Technology

[0002] A combined differential-mode and common-mode inductor is an electronic component that combines the functions of differential-mode and common-mode inductors. It integrates the functions of both inductors into one device, thereby simplifying circuit design and saving space and cost.

[0003] In practical applications, the existing differential and common-mode integrated inductors have relatively complete structures and functions, which can meet basic usage requirements. However, the following problems still exist:

[0004] The existing differential and common mode base and coil structure, when used with pins, results in a large overall structural thickness. The differential and common mode is fixed by snap-fit, which makes it impossible for the differential and common mode to be fully adapted to the snap-fit ​​part, thus increasing the thickness. At the same time, the snap-fit ​​limiting method between the differential and common mode and the base makes the overall fixation unstable. If soldering is used, the coil on the differential and common mode cannot be separated from the base, which will increase the subsequent use cost.

[0005] Therefore, this utility model provides an embedded ultra-thin differential and common-mode integrated inductor. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an embedded ultra-thin differential and common-mode integrated inductor.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an embedded ultra-thin differential and common-mode integrated inductor, including a first winding post and a second winding post. A first coil is wound around the outer surface of the first winding post, and a second coil is wound around the outer surface of the second winding post. A first connecting plate is fixedly connected to one side of the first and second winding posts, and a second connecting plate is fixedly connected to the side of the first and second winding posts opposite to the first connecting plate. A base is provided at the bottom of the first and second coils, and an arc-shaped wire groove is provided at the top of the base. The first and second coils are engaged with the inner wall of the arc-shaped wire groove. Auxiliary blocks are fixedly connected at the four corners of the base, and pins are inserted into the inner wall of the auxiliary blocks. A disassembly and assembly fixing structure is provided at the bottom of the base, including a rectangular locking groove. The rectangular locking groove is opened at the bottom of the base, and a rectangular locking block is engaged with the inner wall of the rectangular locking groove. A disassembly and assembly magnetic strip structure is provided at the top of the base, including a rectangular slot. The rectangular slot is opened at the top of the base, and a rectangular locking block is engaged with the inner wall of the rectangular slot.

[0008] In a preferred embodiment, rectangular slots are provided on both sides of the rectangular card slot, rectangular inserts are inserted into the inner wall of the rectangular slots, a connecting plate is fixedly connected to the top of the rectangular inserts, and a fixing pressure plate is fixedly connected to one side of the connecting plate.

[0009] The technical effect of adopting the above-mentioned further solution is that, under the action of the rectangular locking block and the rectangular locking groove, the rectangular slot and the rectangular insert can be used to lock and install the connecting plate and other components, and the fixing pressure plate can be used to assist in fixing the first connecting plate, the second connecting plate and the base.

[0010] In a preferred embodiment, a second screw hole is provided on one side of the rectangular insert block, and a first screw hole is provided on one side of the rectangular locking block. The inner walls of the first screw hole and the second screw hole are threadedly connected to a threaded locking rod.

[0011] The technical effect of adopting the above-mentioned further solution is that, under the action of the threaded clamp, it can cooperate with the first threaded hole and the second threaded hole to assist in fixing the rectangular clamping block and the rectangular insert block.

[0012] In a preferred embodiment, a partition plate is fixedly connected to the top of the rectangular card block, and a card slot is provided on the top of the partition plate. A magnetic strip plate is engaged with the inner wall of the card slot.

[0013] The technical effect of adopting the above-mentioned further solution is that, under the action of the rectangular card block and the rectangular card slot, the partition plate can be limited, and at the same time, under the action of the magnetic strip plate, a bridging magnetic field can be formed between the first coil and the second coil, thereby avoiding mutual interference between the differential mode functional area and the common mode functional area.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] By setting up a disassembly and fixing structure, the rectangular slot and rectangular block can work with the rectangular slot and rectangular insert to disassemble and assemble the connecting plate. The rectangular insert can be fixed by the threaded rod, the first screw hole, and the second screw hole. The first and second connecting plates can be fixed by the fixing plate. At the same time, the entire structure can make the base, the first coil, and the second coil ultra-thin. The base and other structures can be embedded and connected with the pins, making the overall structure ultra-thin. By setting up a disassembly and assembly magnetic strip structure, the partition plate can be disassembled and assembled by the rectangular block and rectangular slot. The magnetic strip plate can form a bridging magnetic field, thereby avoiding the mutual interference between the differential mode structure and the common mode structure. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of the embedded ultra-thin differential and common-mode integrated inductor provided by this utility model;

[0017] Figure 2 A schematic diagram of the structure at the first and second winding posts of the embedded ultra-thin differential and common-mode integrated inductor provided by this utility model;

[0018] Figure 3 A schematic diagram of the base structure of the embedded ultra-thin differential and common mode integrated inductor provided by this utility model;

[0019] Figure 4 A schematic diagram of the rectangular mounting block of the embedded ultra-thin differential and common-mode integrated inductor provided by this utility model;

[0020] Figure 5 A schematic diagram of the rectangular slot structure of the embedded ultra-thin differential and common mode integrated inductor provided by this utility model;

[0021] Figure 6 A schematic diagram of the partition structure of the embedded ultra-thin differential and common mode integrated inductor provided by this utility model.

[0022] Legend:

[0023] 1. First winding post; 2. Second winding post; 3. First coil; 4. Second coil; 5. First connecting plate; 6. Second connecting plate; 7. Base;

[0024] 8. Disassembly and assembly fixing structure; 81. Rectangular slot; 82. Rectangular block; 83. Rectangular slot; 84. Rectangular insert; 85. Connecting plate; 86. Fixing pressure plate; 87. First screw hole; 88. Second screw hole; 89. Threaded locking rod;

[0025] 9. Magnetic stripe assembly / disassembly structure; 91. Rectangular card slot; 92. Rectangular card block; 93. Divider plate; 94. Card slot; 95. Magnetic stripe plate;

[0026] 10. Arc-shaped groove; 11. Auxiliary block; 12. Pin. Detailed Implementation

[0027] 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.

[0028] like Figures 1-6As shown, this embodiment provides a technical solution: an embedded ultra-thin differential and common-mode integrated inductor, including a first winding post 1 and a second winding post 2. A first coil 3 is wound around the outer surface of the first winding post 1, and a second coil 4 is wound around the outer surface of the second winding post 2. A first connecting plate 5 is fixedly connected to one side of the first winding post 1 and the second winding post 2, and a second connecting plate 6 is fixedly connected to the side of the first winding post 1 and the second winding post 2 opposite to the first connecting plate 5. A base 7 is provided at the bottom of the first coil 3 and the second coil 4, and the top of the base 7... The base 7 is provided with an arc-shaped wire groove 10, and the first coil 3 and the second coil 4 are engaged with the inner wall of the arc-shaped wire groove 10. Auxiliary blocks 11 are fixedly connected to the four corners of the base 7, and pins 12 are inserted into the inner wall of the auxiliary blocks 11. The bottom of the base 7 is provided with a disassembly and assembly fixing structure 8, which includes a rectangular locking groove 81. The rectangular locking groove 81 is located at the bottom of the base 7, and a rectangular locking block 82 is engaged with the inner wall of the rectangular locking groove 81. The top of the base 7 is provided with a disassembly and assembly magnetic strip structure 9, which includes... The base 7 includes a rectangular slot 91 located on its top. A rectangular block 92 is attached to the inner wall of the slot 91. A disassembly and fixing structure 8, along with the rectangular slot 81 and the rectangular block 82, allows for the assembly and disassembly of the connecting plate 85. The rectangular block 84 can be fixed using the threaded rod 89, the first screw hole 87, and the second screw hole 88. The first connecting plate 5 and the second connecting plate 6 can be fixed using the fixing plate 86. This structure allows for an ultra-thin design of the base 7, the first coil 3, and the second coil 4. The base 7 and other structures, including the pin 12, are then embedded and connected, further contributing to the ultra-thin overall structure. A magnetic stripe disassembly and assembly structure 9, along with the rectangular block 92 and the rectangular slot 91, allows for the disassembly and assembly of the partition plate 93. This, in conjunction with the magnetic stripe plate 95, forms a bridging magnetic field, preventing the differential mode and common mode structures from interfering with each other.

[0029] Going a step further, such as Figures 3-4 As shown: Rectangular slots 83 are provided on both sides of the rectangular locking block 82. A rectangular insert block 84 is inserted into the inner wall of the rectangular slot 83. A connecting plate 85 is fixedly connected to the top of the rectangular insert block 84. A fixing pressure plate 86 is fixedly connected to one side of the connecting plate 85. Under the action of the rectangular locking block 82 and the rectangular locking slot 81, the rectangular slots 83 and the rectangular insert blocks 84 can be used to lock and install the connecting plate 85 and other components. The fixing pressure plate 86 can be used to assist in fixing the first connecting plate 5, the second connecting plate 6 and the base 7.

[0030] The above solution also has the problem of unstable fixing of the rectangular insert 84 and the rectangular slot 83, such as... Figure 4As shown: In this scheme, a second screw hole 88 is provided on one side of the rectangular insert block 84, and a first screw hole 87 is provided on one side of the rectangular locking block 82. The inner walls of the first screw hole 87 and the second screw hole 88 are threadedly connected to a threaded locking rod 89. Under the action of the threaded locking rod 89, it can cooperate with the first screw hole 87 and the second screw hole 88 to assist in fixing the rectangular locking block 82 and the rectangular insert block 84.

[0031] The above solutions also suffer from the problem of mutual interference between the common-mode functional region structure and the differential-mode functional region structure, such as... Figure 5 and Figure 6 As shown, a partition plate 93 is fixedly connected to the top of the rectangular card block 92. A card slot 94 is opened on the top of the partition plate 93. A magnetic strip plate 95 is engaged with the inner wall of the card slot 94. Under the action of the rectangular card block 92 and the rectangular card slot 91, the partition plate 93 can be limited. At the same time, under the action of the magnetic strip plate 95, a bridging magnetic field can be formed between the first coil 3 and the second coil 4, thereby avoiding mutual interference between the differential mode functional area and the common mode functional area.

[0032] Working principle:

[0033] like Figure 1-6 As shown:

[0034] The first coil 3 and the second coil 4 are wound around the outer surfaces of the first winding post 1 and the second winding post 2. At this time, the first connecting plate 5 and the second connecting plate 6 are welded to the two sides of the first winding post 1 and the second winding post 2 respectively. At this time, the rectangular card block 92 is inserted into the inner wall of the rectangular card slot 91, and then the magnetic strip plate 95 is inserted into the inner wall of the card slot 94.

[0035] At this time, the first coil 3 and the second coil 4 are inserted into the inner wall of the arc-shaped wire groove 10. Then, the rectangular locking block 82 can be inserted into the inner wall of the rectangular locking groove 81, and then the rectangular insert block 84 can be inserted into the inner wall of the rectangular slot 83, so that the fixing plate 86 can fix the first connecting plate 5 and the second connecting plate 6.

[0036] At this point, the threaded clamp 89 is fixed to the first screw hole 87 and the second screw hole 88, thereby fixing the rectangular insert 84 and the rectangular slot 83.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An embedded ultra-thin differential and common-mode integrated inductor, comprising a first winding post (1) and a second winding post (2), characterized in that, The outer surface of the first winding post (1) is wound with a first coil (3), the outer surface of the second winding post (2) is wound with a second coil (4), a first connecting plate (5) is fixedly connected to one side of the first winding post (1) and the second winding post (2), a second connecting plate (6) is fixedly connected to the side of the first winding post (1) and the second winding post (2) opposite to the first connecting plate (5), a base (7) is provided at the bottom of the first coil (3) and the second coil (4), an arc-shaped wire groove (10) is provided at the top of the base (7), the first coil (3) and the second coil (4) are engaged with the inner wall of the arc-shaped wire groove (10), and auxiliary blocks (11) are fixedly connected at the four corners of the base (7), and pins (12) are inserted into the inner wall of the auxiliary blocks (11). The bottom of the base (7) is provided with a disassembly and fixing structure (8), which includes a rectangular slot (81). The rectangular slot (81) is opened at the bottom of the base (7), and a rectangular slot block (82) is engaged with the inner wall of the rectangular slot (81). The top of the base (7) is provided with a detachable magnetic strip structure (9), which includes a rectangular slot (91). The rectangular slot (91) is opened on the top of the base (7), and a rectangular block (92) is engaged with the inner wall of the rectangular slot (91).

2. The embedded ultra-thin differential common mode integrated inductor of claim 1, wherein: The rectangular card slot (82) has rectangular slots (83) on both sides, and rectangular inserts (84) are inserted into the inner wall of the rectangular slots (83).

3. The embedded ultra-thin differential common mode integrated inductor of claim 2, wherein: A connecting plate (85) is fixedly connected to the top of the rectangular insert (84), and a fixing pressure plate (86) is fixedly connected to one side of the connecting plate (85).

4. The embedded ultra-thin differential common mode integrated inductor of claim 2, wherein: The rectangular insert (84) has a second screw hole (88) on one side, and the rectangular locking block (82) has a first screw hole (87) on one side.

5. The embedded ultra-thin differential common mode integrated inductor of claim 4, wherein: The inner walls of the first screw hole (87) and the second screw hole (88) are threaded with threaded clamps (89).

6. The embedded ultra-thin differential and common-mode integrated inductor according to claim 1, characterized in that: The top of the rectangular card block (92) is fixedly connected to a partition plate (93), and the top of the partition plate (93) is provided with a card slot (94).

7. The embedded ultra-thin differential and common-mode integrated inductor according to claim 6, characterized in that: The inner wall of the slot (94) is fitted with a magnetic strip plate (95).