Differential mode and common mode integrated flat wire inductor

Abstract

The utility model discloses a differential mode and common mode integrated flat wire inductor which comprises a wrapping post assembly and a coil assembly, the wrapping post assembly comprises a first wrapping post and a second wrapping post, the first wrapping post and the second wrapping post are arranged in parallel, the coil assembly comprises a first coil and a second coil, the first coil is wound outside the first wrapping post, and the second coil is wound outside the second wrapping post. The first coil is wound outside the first wrapping post, the second coil is wound outside the second wrapping post, the two ends of the first connecting plate are fixed to the top end of the first wrapping post and the top end of the second wrapping post respectively, the two ends of the second connecting plate are fixed to the bottom end of the first wrapping post and the bottom end of the second wrapping post respectively, and the inserting piece is of an inverted-T-shaped structure. According to the utility model, the structure design is novel, the manufacture is convenient, two kinds of interference of common mode and differential mode can be inhibited at the same time, two kinds of performance of the common mode and the differential mode can be realized, the size is small, the loss is low, and the energy loss can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flat line inductors, in particular to a differential and common mode integrated flat line inductor. Background Art

[0002] Due to the needs of people's work and life, the demand for power electronic equipment is increasing. However, almost all power circuits will generate common-mode and differential-mode electromagnetic interference signals. Usually, power circuits are connected with common-mode filter inductors and differential-mode filter inductors to reduce or suppress common-mode and differential-mode interference signals so that the power circuits meet the requirements of electromagnetic compatibility.

[0003] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only blocks the change of current. If there is no current flowing through the inductor, it will try to block the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected. Inductors are also called chokes, reactors, and dynamic reactors.

[0004] The current inductors occupy a large board area, have a high inductor cost, and have high losses during use, resulting in a large loss of electrical energy. Therefore, it is necessary to design a differential and common mode integrated flat line inductor. Utility Model Content

[0005] The purpose of the utility model is to provide a differential and common mode integrated flat wire inductor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a differential and common mode integrated flat wire inductor, comprising a winding column assembly and a coil assembly;

[0007] Wherein, the winding post assembly comprises a first winding post and a second winding post, wherein the first winding post and the second winding post are arranged in parallel;

[0008] A coil assembly, the coil assembly comprising a first coil and a second coil, the first coil being wound around the outside of a first winding post, and the second coil being wound around the outside of a second winding post;

[0009] It also includes a first connecting plate and a second connecting plate, wherein two ends of the first connecting plate are respectively fixed to the top end of the first winding post and the top end of the second winding post, and two ends of the second connecting plate are respectively fixed to the bottom end of the first winding post and the bottom end of the second winding post.

[0010] Preferably, the differential common mode integrated flat wire inductor provided in the present application further includes a mounting base assembly, wherein the mounting base assembly includes a mounting base, a first back plate, a second back plate and an intermediate plate, two mounting grooves are opened in the mounting base, the bottom ends of the first winding column and the second winding column are respectively fixed in the two mounting grooves, the first back plate, the second back plate and the intermediate plate are all arranged on one side of the mounting base, and the intermediate plate is arranged between the first back plate and the second back plate.

[0011] Preferably, in the differential common mode integrated flat wire inductor provided by the present application, the inner sides of the first back plate and the second back plate are both arc-shaped structures.

[0012] Preferably, in the differential common mode integrated flat wire inductor provided by the present application, a slot is formed between the inner end of the first backplane, the inner end of the second backplane and the middle plate.

[0013] Preferably, the differential common mode integrated flat wire inductor provided in the present application further includes a plug-in piece, the plug-in piece adopts a "convex" structure, the plug-in piece includes a main body and a plug-in end, the plug-in end is located at the outer end of the main body, the plug-in end is inserted into a slot, and the main body is plugged between the first coil and the second coil.

[0014] Preferably, in the differential common mode integrated flat wire inductor provided by the present application, a gas gap is left between both sides of the body and the first coil and the second coil, and the width of the gas gap is 0.3 cm-1 cm.

[0015] Preferably, in the differential common mode integrated flat wire inductor provided by the present application, the plug-in sheet is made of high-frequency nickel-zinc and manganese-zinc and iron-silicon-aluminum magnetic strips or non-oriented silicon steel sheets.

[0016] Preferably, the differential common mode integrated flat wire inductor provided by the present application, wherein the first coil and the second coil are both copper coils, and the copper coils are made of round wire or flat wire; the first winding post and the second winding post are both made of nickel-zinc, manganese-zinc, and second-generation iron-silicon ferrite materials with high-frequency characteristics.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model has a novel structural design and is easy to manufacture. It can suppress both common mode and differential mode interference and achieve both differential and common mode performance. It also has the advantages of small size and low loss, and can effectively reduce energy loss.

[0019] (2) The plug-in piece used in the present invention is a "convex" structure, and the plug-in piece includes a body and a plug-in end. The plug-in end is located at the outer end of the body, and the plug-in end is inserted into the slot. The body is plugged between the first coil and the second coil. This structure can effectively prevent the leakage inductance phenomenon and further improve the working performance of the inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0021] Figure 2 This is a top view of the first embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the second embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the third embodiment of the utility model;

[0024] Figure 5 This is the work flow chart of the utility model;

[0025] In the figure: a first winding post 1, a second winding post 2, a first coil 3, a second coil 4, a first connecting plate 5, a second connecting plate 6, a mounting seat 7, a first back plate 8, a second back plate 9, an intermediate plate 10, a plug-in piece 11, a body 12, and a plug-in terminal 13. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0030] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the effects that can be produced by this application and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial change in the technical content.

[0031] Embodiment 1:

[0032] See also Figure 1-2 , the utility model provides a technical solution: a differential common mode integrated flat wire inductor, including a winding column assembly and a coil assembly;

[0033] Wherein, the winding post assembly comprises a first winding post 1 and a second winding post 2, wherein the first winding post 1 and the second winding post 2 are arranged in parallel;

[0034] The coil assembly includes a first coil 3 and a second coil 4, wherein the first coil 3 is wound around the outside of a first winding post 1, and the second coil 4 is wound around the outside of a second winding post 2; the first coil 3 and the second coil 4 are both copper coils, and the copper coils are made of round wire or flat wire; the first winding post 1 and the second winding post 2 are both made of nickel-zinc, manganese-zinc, and second-generation iron-silicon ferrite materials with high-frequency characteristics.

[0035] It also includes a first connecting plate 5 and a second connecting plate 6, wherein two ends of the first connecting plate 5 are respectively fixed to the top of the first winding post 1 and the top of the second winding post 2, and two ends of the second connecting plate 6 are respectively fixed to the bottom of the first winding post 1 and the bottom of the second winding post 2.

[0036] The present embodiment also includes a mounting seat assembly, which includes a mounting seat 7, a first back plate 8, a second back plate 9 and an intermediate plate 10. Two mounting grooves are opened in the mounting seat 7, and the bottom ends of the first winding column 1 and the second winding column 2 are respectively fixed in the two mounting grooves. The first back plate 8, the second back plate 9 and the intermediate plate 10 are all arranged on one side of the mounting seat 7, and the intermediate plate 10 is arranged between the first back plate 8 and the second back plate 9; the inner sides of the first back plate 8 and the second back plate 9 are both arc-shaped structures; a slot is formed between the inner ends of the first back plate 8, the inner ends of the second back plate 9 and the intermediate plate.

[0037] This embodiment also includes a plug-in piece 11, which adopts a "convex" structure. The plug-in piece 11 includes a body 12 and a plug-in end 13. The plug-in end 13 is located at the outer end of the body 12, and the plug-in end 13 is inserted into the slot. The body 12 is plugged between the first coil 3 and the second coil 4. There are gas gaps between the two sides of the body 12 and the first coil 3 and the second coil 4, and the width of the gas gap is 0.3cm-1cm. The plug-in piece 11 adopts a magnetic strip or a silicon steel sheet. The plug-in piece used in the utility model is a "convex" structure. The plug-in piece includes a body and a plug-in end. The plug-in end is located at the outer end of the body, and the plug-in end is inserted into the slot. The body is plugged between the first coil and the second coil. This structure can effectively prevent the leakage inductance phenomenon and further improve the working performance of the inductor.

[0038] Embodiment 2:

[0039] See also Figure 3 , differential and common mode integrated flat wire inductor, including a winding column assembly and a coil assembly;

[0040] Wherein, the winding post assembly comprises a first winding post 1 and a second winding post 2, wherein the first winding post 1 and the second winding post 2 are arranged in parallel;

[0041] The coil assembly includes a first coil 3 and a second coil 4, wherein the first coil 3 is wound around the outside of a first winding post 1, and the second coil 4 is wound around the outside of a second winding post 2; the first coil 3 and the second coil 4 are both copper coils, and the copper coils are made of round wire or flat wire; the first winding post 1 and the second winding post 2 are both made of nickel-zinc, manganese-zinc, and second-generation iron-silicon ferrite materials with high-frequency characteristics.

[0042] It also includes a first connecting plate 5 and a second connecting plate 6, wherein two ends of the first connecting plate 5 are respectively fixed to the top of the first winding post 1 and the top of the second winding post 2, and two ends of the second connecting plate 6 are respectively fixed to the bottom of the first winding post 1 and the bottom of the second winding post 2.

[0043] The present embodiment also includes a mounting seat assembly, which includes a mounting seat 7, a first back plate 8, a second back plate 9 and an intermediate plate 10. Two mounting grooves are opened in the mounting seat 7, and the bottom ends of the first winding column 1 and the second winding column 2 are respectively fixed in the two mounting grooves. The first back plate 8, the second back plate 9 and the intermediate plate 10 are all arranged on one side of the mounting seat 7, and the intermediate plate 10 is arranged between the first back plate 8 and the second back plate 9; the inner sides of the first back plate 8 and the second back plate 9 are both arc-shaped structures; a slot is formed between the inner ends of the first back plate 8, the inner ends of the second back plate 9 and the intermediate plate.

[0044] This embodiment also includes a plug-in sheet 11, which adopts a "convex" structure. The plug-in sheet 11 includes a body 12 and a plug-in end 13. The plug-in end 13 is located at the outer end of the body 12, and the plug-in end 13 is inserted into the slot. The body 12 is plugged between the first coil 3 and the second coil 4. There are gas gaps between the two sides of the body 12 and the first coil 3 and the second coil 4, and the width of the gas gap is 0.3cm-1cm. The plug-in sheet adopts high-frequency nickel-zinc and manganese-zinc and iron-silicon-aluminum magnetic strips or non-oriented silicon steel sheets. The plug-in sheet used in the utility model is a "convex" structure. The plug-in sheet includes a body and a plug-in end. The plug-in end is located at the outer end of the body, and the outer side of the body is inserted into the slot. The body is plugged between the first coil and the second coil. This structure can effectively prevent the leakage inductance phenomenon and further improve the working performance of the inductor.

[0045] Embodiment three:

[0046] See also Figure 4 , differential and common mode integrated flat wire inductor, including a winding column assembly and a coil assembly;

[0047] Wherein, the winding post assembly comprises a first winding post 1 and a second winding post 2, wherein the first winding post 1 and the second winding post 2 are arranged in parallel;

[0048] The coil assembly includes a first coil 3 and a second coil 4, wherein the first coil 3 is wound around the outside of a first winding post 1, and the second coil 4 is wound around the outside of a second winding post 2; the first coil 3 and the second coil 4 are both copper coils, and the copper coils are made of round wire or flat wire; the first winding post 1 and the second winding post 2 are both made of nickel-zinc, manganese-zinc, and second-generation iron-silicon ferrite materials with high-frequency characteristics.

[0049] It also includes a first connecting plate 5 and a second connecting plate 6, wherein two ends of the first connecting plate 5 are respectively fixed to the top of the first winding post 1 and the top of the second winding post 2, and two ends of the second connecting plate 6 are respectively fixed to the bottom of the first winding post 1 and the bottom of the second winding post 2.

[0050] The present embodiment also includes a mounting seat assembly, which includes a mounting seat 7, a first back plate 8, a second back plate 9 and an intermediate plate 10. Two mounting grooves are opened in the mounting seat 7, and the bottom ends of the first winding column 1 and the second winding column 2 are respectively fixed in the two mounting grooves. The first back plate 8, the second back plate 9 and the intermediate plate 10 are all arranged on one side of the mounting seat 7, and the intermediate plate 10 is arranged between the first back plate 8 and the second back plate 9; the inner sides of the first back plate 8 and the second back plate 9 are both arc-shaped structures; a slot is formed between the inner ends of the first back plate 8, the inner ends of the second back plate 9 and the intermediate plate.

[0051] This embodiment also includes a plug-in sheet 11, and two plug-in sheets 11 are symmetrically arranged. Both of the two plug-in sheets 11 adopt a "convex" structure. The plug-in sheet 11 includes a body 12 and a plug-in end 13. The plug-in end 13 is located at the outer end of the body 12, and the plug-in end 13 is inserted into the slot. The body 12 is plugged between the first coil 3 and the second coil 4; there is a gas gap between the two sides of the body 12 and the first coil 3 and the second coil 4, and the width of the gas gap is 0.3cm-1cm; the plug-in sheet adopts high-frequency nickel-zinc and manganese-zinc and iron-silicon-aluminum magnetic strips or non-oriented silicon steel sheets. The plug-in sheet used in the utility model is a "convex" structure, and the plug-in sheet includes a body and a plug-in end. The plug-in end is located at the outer end of the body, and the outer side of the body is inserted into the slot. The body is plugged between the first coil and the second coil. The use of this structure can effectively prevent the leakage inductance phenomenon and further improve the working performance of the inductor.

[0052] Working principle: The method of using the utility model includes the following steps:

[0053] A. Winding the first coil around the outside of the first winding post, and winding the second coil around the outside of the second winding post;

[0054] B. Fix the first winding post and the second winding post in two mounting grooves in the mounting base respectively;

[0055] C. Insert the connector between the first coil and the second coil to form an air gap partition;

[0056] D. After the first coil and the second coil are energized, the first coil and the first winding column form a first magnetic field, and the second coil and the second winding column form a second magnetic field;

[0057] E. The connector area forms a bridge magnetic field, which separates the magnetic fields on both sides, reduces magnetic field interference, and prevents leakage inductance.

[0058] In summary, the utility model has novel structural design and is easy to manufacture. It can suppress both common mode and differential mode interference and achieve both differential and common mode performances. It also has the advantages of small size and low loss, and can effectively reduce energy loss.

[0059] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0060] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. Differential and common mode integrated flat wire inductor, characterized by: It includes a winding column assembly and a coil assembly; Wherein, a winding pole assembly comprises a first winding pole (1) and a second winding pole (2), wherein the first winding pole (1) and the second winding pole (2) are arranged in parallel; A coil assembly, the coil assembly comprising a first coil (3) and a second coil (4), the first coil (3) being wound around the outside of a first winding post (1), and the second coil (4) being wound around the outside of a second winding post (2); It also comprises a first connecting plate (5) and a second connecting plate (6), wherein two ends of the first connecting plate (5) are respectively fixed to the top end of the first winding post (1) and the top end of the second winding post (2), and two ends of the second connecting plate (6) are respectively fixed to the bottom end of the first winding post (1) and the bottom end of the second winding post (2).

2. The differential and common mode integrated flat wire inductor according to claim 1, characterized in that: The invention also comprises a mounting seat assembly, wherein the mounting seat assembly comprises a mounting seat (7), a first back plate (8), a second back plate (9) and an intermediate plate (10), wherein two mounting grooves are provided in the mounting seat (7), the bottom ends of the first winding post (1) and the second winding post (2) are respectively fixed in the two mounting grooves, the first back plate (8), the second back plate (9) and the intermediate plate (10) are all arranged on one side of the mounting seat (7), and the intermediate plate (10) is arranged between the first back plate (8) and the second back plate (9).

3. The differential and common mode integrated flat wire inductor according to claim 2, characterized in that: The inner sides of the first back plate (8) and the second back plate (9) are both arc-shaped structures.

4. The differential and common mode integrated flat wire inductor according to claim 2, characterized in that: A slot is formed between the inner end of the first back plate (8), the inner end of the second back plate (9) and the middle plate.

5. The differential and common mode integrated flat wire inductor according to claim 1, characterized in that: It also comprises a plug-in piece (11), the plug-in piece (11) adopts a "convex" structure, the plug-in piece (11) comprises a body (12) and a plug-in end (13), the plug-in end (13) is located at the outer end of the body (12), the plug-in end (13) is inserted into a slot, and the body (12) is plugged between the first coil (3) and the second coil (4).

6. The differential and common mode integrated flat wire inductor according to claim 5, characterized in that: Gas gaps are left between the two sides of the body (12) and the first coil (3) and the second coil (4), and the width of the gas gaps is 0.3 cm to 1 cm.

7. The differential and common mode integrated flat wire inductor according to claim 5, characterized in that: The plug-in sheet (11) is made of high-frequency nickel-zinc and manganese-zinc and iron-silicon-aluminum magnetic strips or non-oriented silicon steel sheets.

8. The differential and common mode integrated flat wire inductor according to claim 1, characterized in that: The first coil (3) and the second coil (4) are both made of copper coils, and the copper coils are made of round wires or flat wires; the first winding post (1) and the second winding post (2) are both made of nickel-zinc, manganese-zinc, and second-generation iron-silicon ferrite materials with high-frequency characteristics.

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