A differential common mode inductance structure

Abstract

The utility model discloses a difference common mode inductance structure, include: shell, two difference mode magnetic core, a common mode magnetic core and copper bar assembly, the shell is provided with two mounting post in parallel in, two difference mode magnetic core from top to bottom respectively cover the outside of corresponding mounting post, and each mounting post all installs a positive pole / negative pole copper column, and the position of the threaded hole on the copper column top corresponds the input / output overlap position, the positive pole copper column and corresponding negative pole copper column are connected through copper bar assembly. The utility model discloses the difference mode inductance and common mode inductance are combined into one, greatly reduce the mounting space required, compact structure, and have good EMC performance and heat dissipation performance, and the assembly is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of hydrogen fuel cell DC / DC converters, and particularly to a differential common-mode inductor structure. Background Technology

[0002] In current inductor applications, differential mode and common mode are usually set up separately, which makes the overall product larger. Utility Model Content

[0003] The main purpose of this invention is to propose a differential common-mode inductor structure, which aims to reduce the volume and space occupied by the inductor structure.

[0004] To achieve the above objectives, this utility model provides a differential and common mode inductor structure, comprising: a housing, two differential mode magnetic cores, a common mode magnetic core, and a copper busbar assembly;

[0005] Two mounting posts are arranged in parallel inside the housing. The two differential mode magnetic cores are respectively sleeved on the corresponding mounting posts from top to bottom. Each mounting post is equipped with a positive / negative copper post. The position of the threaded hole on the top of the copper post corresponds to the input / output connection position.

[0006] A further technical solution of this utility model is that the copper busbar assembly includes an upper copper busbar, a middle copper busbar, and a lower copper busbar. One end of the upper copper busbar and one end of the lower copper busbar are respectively connected to the middle copper busbar by screws. The other end of the upper copper busbar is connected to the copper column, and the other end of the lower copper busbar is connected to the copper column.

[0007] A further technical solution of this utility model is that the upper copper busbar and the lower copper busbar are L-shaped, and the middle copper busbar is square.

[0008] A further technical solution of this utility model is that both the differential mode magnetic core and the common mode magnetic core are ring structures.

[0009] A further technical solution of this utility model is that the bottom of the outer shell is provided with mounting holes.

[0010] A further technical solution of this utility model is that the top / bottom of the copper pillar is provided with inductor input and output connection positions.

[0011] The beneficial effects of this novel differential and common-mode inductor structure are:

[0012] This utility model, through the above-described technical solution, includes: a housing, two differential-mode magnetic cores, a common-mode magnetic core, and a copper busbar assembly; two mounting posts are arranged in parallel inside the housing, and the two differential-mode magnetic cores are respectively sleeved on the corresponding mounting posts from top to bottom. Each mounting post is equipped with a positive / negative copper post, and the position of the threaded hole on the top of the copper post corresponds to the input / output connection position. The differential-mode inductor and the common-mode inductor are combined into one, which greatly reduces the required installation space, has a compact structure, and has good EMC performance and heat dissipation performance. Assembly is simple and convenient. 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 description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the differential and common mode inductor structure of this utility model;

[0015] Figure 2 This is an exploded structural diagram of a preferred embodiment of the differential common-mode inductor structure of this utility model.

[0016] Explanation of icon numbers:

[0017] Upper copper busbar 1;

[0018] Common mode core 2;

[0019] Copper pillar 3;

[0020] Copper pillar 4;

[0021] Screw 5;

[0022] China Copper Bus 6;

[0023] Differential mode magnetic core 7;

[0024] 8. Outer shell;

[0025] Lower copper busbar 9;

[0026] Mounting hole 10.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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.

[0029] Please refer to Figures 1 to 2 This utility model proposes a differential and common mode inductor structure. A preferred embodiment of the differential and common mode inductor structure of this utility model includes a housing 8, two differential mode magnetic cores 7, a common mode magnetic core 2, and a copper busbar assembly.

[0030] Two mounting posts are arranged in parallel inside the outer casing 8. The two differential mode magnetic cores 7 are respectively sleeved on the corresponding mounting posts from top to bottom. Each mounting post is fitted with a copper post 3 and a copper post 4. The common mode magnetic core 2 is sleeved on the two mounting posts and is located above the two differential mode magnetic cores 7. The copper post 3 and the corresponding copper post 4 are connected by a copper busbar assembly.

[0031] This embodiment combines the differential-mode inductor and the common-mode inductor into one, greatly reducing the required installation space, resulting in a compact structure with good EMC and heat dissipation performance, and simple and convenient assembly.

[0032] Specifically, in this embodiment, the copper busbar assembly includes an upper copper busbar 1, a middle copper busbar 6, and a lower copper busbar 9. One end of the upper copper busbar 1 and one end of the lower copper busbar 9 are respectively connected to the middle copper busbar 6 by screws 5. The other end of the upper copper busbar 1 is connected to the copper pillar 3, and the other end of the lower copper busbar 9 is connected to the copper pillar 4.

[0033] In this embodiment, the upper copper busbar 1, middle copper busbar 6, lower copper busbar 9, copper pillar 3 and copper pillar 4 form a structure similar to a conventional coil wound around a magnetic core (differential mode magnetic core 7 and common mode magnetic core 2). The differential mode magnetic core 7 and the common mode magnetic core 2 share a set of coils, which greatly reduces the required installation space, has a compact structure, and has good EMC performance and heat dissipation performance. Assembly is simple and convenient.

[0034] Furthermore, in this embodiment, the upper copper busbar 1 and the lower copper busbar 9 are L-shaped, and the middle copper busbar 6 is square.

[0035] Both the differential-mode magnetic core 7 and the common-mode magnetic core 2 are toroidal structures.

[0036] The bottom of the outer casing 8 is provided with mounting holes 10.

[0037] In this embodiment, the outer shell 8 is a potting shell 8, which can be potted with glue, and is conducive to heat dissipation after installation. The potting shell 8 has 4 mounting holes 10, which is conducive to fixing the inductor.

[0038] Furthermore, in this embodiment, the copper pillars 3 and 4 are provided with inductor input and output connection positions.

[0039] The beneficial effects of this novel differential and common-mode inductor structure are:

[0040] This utility model, through the above-described technical solution, includes: a housing, two differential-mode magnetic cores, a common-mode magnetic core, and a copper busbar assembly; two mounting posts are arranged in parallel inside the housing, and the two differential-mode magnetic cores are respectively sleeved on the corresponding mounting posts from top to bottom. Each mounting post is equipped with a positive / negative copper post, and the position of the threaded hole on the top of the copper post corresponds to the input / output connection position; the common-mode magnetic core is sleeved on the two mounting posts and is located above the two differential-mode magnetic cores; the positive copper post and the corresponding negative copper post are connected by the copper busbar assembly, combining the differential-mode inductor and the common-mode inductor into one, greatly reducing the required installation space, resulting in a compact structure, good EMC performance and heat dissipation performance, and simple and convenient assembly.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A differential common-mode inductor structure, characterized in that, include: The assembly consists of a housing, two differential-mode magnetic cores, a common-mode magnetic core, and a copper busbar. Two mounting posts are arranged in parallel inside the housing. The two differential mode magnetic cores are respectively sleeved on the corresponding mounting posts from top to bottom. Each mounting post is equipped with a positive / negative copper post. The position of the threaded hole on the top of the copper post corresponds to the input / output connection position. The positive copper post and the corresponding negative copper post are connected by a copper busbar assembly.

2. The differential common-mode inductor structure according to claim 1, characterized in that, The copper busbar assembly includes an upper copper busbar, a middle copper busbar, and a lower copper busbar. One end of the upper copper busbar and one end of the lower copper busbar are respectively connected to the middle copper busbar by screws. The other end of the upper copper busbar is connected to the copper post, and the other end of the lower copper busbar is connected to the copper post.

3. The differential common-mode inductor structure according to claim 2, characterized in that, The upper copper busbar and the lower copper busbar are L-shaped, and the middle copper busbar is square.

4. The differential common-mode inductor structure according to claim 1, characterized in that, Both the differential-mode magnetic core and the common-mode magnetic core have a toroidal structure.

5. The differential common-mode inductor structure according to claim 1, characterized in that, The bottom of the outer casing is provided with mounting holes.

6. The differential common-mode inductor structure according to claim 1, characterized in that, The copper pillar has inductor input and output connection points at its top and bottom.

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