CN206497796U - A kind of SMD flat common mode inductance - Google Patents
A kind of SMD flat common mode inductance Download PDFInfo
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- CN206497796U CN206497796U CN201720208579.XU CN201720208579U CN206497796U CN 206497796 U CN206497796 U CN 206497796U CN 201720208579 U CN201720208579 U CN 201720208579U CN 206497796 U CN206497796 U CN 206497796U
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Abstract
The utility model is applied to electronic technology field there is provided a kind of common mode inductance, including：Magnetic core, first coil, the second coil and dividing plate, the first coil, the second coil are rotating around being located on the magnetic core, and the dividing plate, which is arranged in magnetic core, to be used to separate the first coil and second coil；Also include a base, the base profile is rectangular configuration, and there is the base inner chamber to be used to set the magnetic core, and four corners of the base are respectively arranged with stitch.The base of rectangular configuration and it can realize that the profile of common mode inductance can meet the requirement of SMD techniques in the stitch that four corners are set.It is achieved thereby that the automation of common mode inductance, improves the efficiency of assembling of common mode inductance.
Description
Technical field
The utility model belongs to electronic technology field, more particularly to a kind of SMD flat common mode inductance.
Background technology
Common mode inductance has two coils.The two coils are wound on same iron core, and all identical (coiling is anti-for the number of turn and phase
To).So, when the normal current in circuit flows through common mode inductance, electric current is produced instead in the inductance coil of same-phase coiling
To magnetic field and cancel out each other, now normal signal electric current is mainly influenceed (and a small amount of resistance caused by leakage inductance by coil resistance
Buddhist nun)；When there is common mode current flowing through coil, due to the same tropism of common mode current, magnetic field in the same direction can be produced in coil and is increased
The induction reactance of big coil, makes coil show as high impedance, produces stronger damping, with this attenuation common-mode electric current, reaches filtering
Purpose.
The structure of existing common mode inductance generally uses the structure of contact pin type, and this structure needs to arrange for manually carrying out plug-in unit,
But such mode of production efficiency is more low, it is difficult to realize and produce in enormous quantities and automated production.
Utility model content
The utility model provides a kind of SMD flat common mode inductance, it is intended to solve existing common mode inductance efficiency of assembling low
Problem.
What the utility model was realized in：
A kind of SMD flat common mode inductance, including：Magnetic core, first coil, the second coil and dividing plate, described first
Coil, the second coil rotating around being located on the magnetic core, the dividing plate be arranged in magnetic core be used to separating the first coil and
Second coil；Also include a base, the base profile is rectangular configuration, and there is the base inner chamber to be used to set described
Magnetic core, four corners of the base are respectively arranged with stitch.
It is preferred that, the inner chamber is also rectangular configuration, the structure of the magnetic core also for rectangular configuration with can with it is described
The structure of inner chamber is adapted, and the first coil, the second coil are separately positioned on two of the magnetic core of the rectangular configuration relatively
Coiling side column on.
It is preferred that, the inner face structure of the coiling side column is cylinder, and the exterior face of the coiling side column is rectangle.
It is preferred that, the first coil and second coil carry out coiling by flat wire.
It is preferred that, four corners of the base are provided with pore structure, and the stitch is arranged in the pore structure.
It is preferred that, the base is integrally formed with the dividing plate.
SMD flat common mode inductance of the present utility model sets a base, and the base has well-regulated rectangular configuration,
Four corners of the base are respectively arranged with stitch, and the base of rectangular configuration and the stitch in four corners settings can be realized altogether
The profile of mould inductance can meet the requirement of SMD (Surface Mounted Devices, surface mount device) technique.So as to
The automation of common mode inductance is realized, the efficiency of assembling of common mode inductance is improved.
Brief description of the drawings
Fig. 1 is the structural decomposition diagram of the SMD flat common mode inductance of the utility model embodiment,
Fig. 2 is the surface structure schematic diagram of the SMD flat common mode inductance of the utility model embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
It is as shown in Figure 1-2 a kind of SMD flat common mode inductance provided in the present embodiment, the common mode inductance includes：Magnetic
Core 15, first coil 13, the second coil 14 and dividing plate 14.Wherein, the first coil 13, the difference winding of the second coil 14
On the magnetic core 15, the dividing plate 14, which is arranged in magnetic core 15, to be used to separate the first coil 13 and second coil
14.In the present embodiment, the common mode inductance also includes a base 10, and the profile of base 10 is rectangular configuration, the base 10
It is used to set the magnetic core 15 with inner chamber, four corners of the base 10 are respectively arranged with stitch 12.The bottom of rectangular configuration
Seat 10 and it can realize that the profile of common mode inductance can meet the requirement of SMD techniques in the stitch 12 that four corners are set, so that
The automation of common mode inductance is realized, the efficiency of assembling of common mode inductance is improved.
In the present embodiment, the inner chamber of base 10 is also rectangular configuration, and corresponding, and the structure of the magnetic core 15 is also square
Shape structure with the structure of the inner chamber can be adapted, and the first coil 13, the second coil 14 are separately positioned on described
On two relative coiling side columns (15a, 15b) of the magnetic core 15 of rectangular configuration.It is whole after coiling using the magnetic core 15 of rectangular configuration
The package area and packaging height of individual coil can be reduced, it is easier to the miniaturization and flattening of finished product be realized, so as to be more easy to
In realizing SMD assembly technologies,
In the present embodiment, as shown in figure 1, by taking the coiling side column 15a of magnetic core 15 as an example, the coiling side column 15a of magnetic core 15
Inner face structure for cylinder, and coiling side column 15a exterior face be rectangle.The exterior face structure of rectangle can be with coiling
The still rectangular shaped of the overall structure after coiling is preferably kept, and inner face structure can increase the length of coiling for cylinder
Degree, so, can both improve winding length, rectangular shape can be kept again so that the entirety after coiling is more easily implemented structure
Flattening.
In the present embodiment, as a preferred embodiment, the first coil 13 and second coil 14
Coiling can be carried out by flat wire., can between the line and line of flat wire for the coil of traditional circular copper wire winding
To keep smaller gap (line is with having very big gap after circular copper wire winding between line), so that the utilization of magnetic core 15
Rate is higher.
In the present embodiment, four corners of the base 10 are provided with pore structure 11, and the stitch 12 is arranged on described
Realize and fix in pore structure 11.The fixed form of pore structure 11 is easier to be made when base is molded, and technique is more simple.
In the present embodiment, dividing plate 14 can also be integrally formed with base 10, and dividing plate, letter are set so there is no need to extra
Technological process is changed.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
1. a kind of SMD flat common mode inductance, including：Magnetic core, first coil, the second coil and dividing plate, the First Line
Circle, the second coil are rotating around being located on the magnetic core, and the dividing plate, which is arranged in magnetic core, to be used to separate the first coil and institute
State the second coil；Characterized in that, also including a base, the base profile is rectangular configuration, and the base has inner chamber use
In setting the magnetic core, four corners of the base are respectively arranged with stitch.
2. SMD flat common mode inductance as claimed in claim 1, it is characterised in that the inner chamber is also rectangular configuration, institute
To state the structure of magnetic core be also rectangular configuration can be adapted with the structure of the inner chamber, the first coil, the second coil
It is separately positioned on two relative coiling side columns of the magnetic core of the rectangular configuration.
3. SMD flat common mode inductance as claimed in claim 2, it is characterised in that the inner face structure of the coiling side column is
Cylinder, the exterior face of the coiling side column is rectangle.
4. SMD flat common mode inductance as claimed in claim 1, it is characterised in that the first coil and described second
Coil carries out coiling by flat wire.
5. SMD flat common mode inductance as claimed in claim 1, it is characterised in that four corners of the base are provided with
Pore structure, the stitch is arranged in the pore structure.
6. SMD flat common mode inductance as claimed in claim 1, it is characterised in that the base and dividing plate one into
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720208579.XU CN206497796U (en) | 2017-03-02 | 2017-03-02 | A kind of SMD flat common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720208579.XU CN206497796U (en) | 2017-03-02 | 2017-03-02 | A kind of SMD flat common mode inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206497796U true CN206497796U (en) | 2017-09-15 |
Family
ID=59807027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720208579.XU Active CN206497796U (en) | 2017-03-02 | 2017-03-02 | A kind of SMD flat common mode inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206497796U (en) |
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2017
- 2017-03-02 CN CN201720208579.XU patent/CN206497796U/en active Active
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