CN205828054U - A kind of many circuit signals suppression common mode inductance - Google Patents
A kind of many circuit signals suppression common mode inductance Download PDFInfo
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- CN205828054U CN205828054U CN201620777553.2U CN201620777553U CN205828054U CN 205828054 U CN205828054 U CN 205828054U CN 201620777553 U CN201620777553 U CN 201620777553U CN 205828054 U CN205828054 U CN 205828054U
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Abstract
This utility model disclose a kind of many circuit signals suppression common mode inductance, including annular magnetic core, cross in insert and base plate, wire；Insert in cross in the magnetic core being arranged on annular, magnetic core is divided into four regions；Being correspondingly provided with one group of conductive coil in each region, this conductive coil is formed by identical and independent wire coiling；Often group conductive coil is provided with two lead terminals, respectively input lead and output lead, and above-mentioned two lead-in wires are fixed on base plate after drawing；Base plate is provided with the pin bores that two rows are corresponding with lead-in wire；Often group input lead is connected in string pin bores accordingly, and what output lead was corresponding is connected in another row pin bores.This utility model solves traditional common mode inductance and only has two groups of coils to be wound on a magnetic core simultaneously, only has access the natural mode of a circuit signal；Four tunnels can be simultaneously directed on a magnetic core and need the circuit signal of suppression, reach to reduce cost, the excellent results of minimizing circuit board space.
Description
Technical field
This utility model relates to a kind of many circuit signals suppression common mode inductance, and can be simultaneously directed multichannel needs the circuit of suppression
Signal, has reached to reduce cost, the excellent results of minimizing circuit board space.
Background technology
In the construction of conservation-minded society of China, want along with people's security performance etc. to Electrical Appliances Designing with to electrical equipment uses
That asks improves constantly, and the place introducing, using common mode inductance on circuit boards also gets more and more.Common mode inductance is also common mode inductance
Coil.Its main operation principle is: when common mode current flows through common mode inductance, can produce in the same direction in common mode inductance coil
Magnetic field and increase the induction reactance of coil, make coil show as high impedance, thus produce stronger damping, with this attenuation common-mode electricity
Stream, filtering common mode disturbs, reaches higher using effect.
But the common mode inductance commonly used in the market is two coils and is wound on same magnetic core, say, that
One common mode inductance only has access set of circuits signal.But being as the development of society, new household electrical appliance are constantly updated and are regenerated,
On the most emerging high-power frequency conversion air-conditioning, Jiu You tetra-road signal demand common mode inductance suppresses, if still
If traditional electric mould inductance, that is accomplished by four common mode inductances of mounting design on circuit boards, and this access way can be made
It is bigger that one-tenth circuit board volume does, and affects aesthetic property and the integration of whole electrical equipment；The electronic component of access is the most also can
Complete machine manufacturing cost is greatly increased.
Utility model content
For technical problem present in prior art, this utility model provides a kind of many circuit signals suppression common mode electricity
Sense.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of many circuit signals suppression common mode inductance, including annular magnetic core, cross in insert and base plate, wire；
Described cross in insert be arranged on annular magnetic core in, magnetic core is divided into four regions；In each described region
Being correspondingly provided with one group of conductive coil, this conductive coil is formed by identical and independent wire coiling；
Often organizing described conductive coil and be provided with two lead terminals, respectively input lead and output lead, above-mentioned two are drawn
Line is fixed on base plate after drawing；
Described base plate is provided with the pin bores that two rows are corresponding with lead-in wire；Often organize described input lead and be connected to string accordingly
In pin bores, what described output lead was corresponding is connected in another row pin bores.
Described wire is polyurethane enamelled wire wire；The enamel-covered wire number of turn and coiling direction in each described region are homogeneous
With.
Described wire and base plate, magnetic core and in insert and all fixed respectively by epoxy glue.
After described conductive line surfaces polyurethane coat of paint is peeled off, then leaching is upper without slicker solder.
The beneficial effects of the utility model: many circuit signals of the present utility model suppression common mode inductance, solve traditional
Common mode inductance only has two groups of coils to be wound on a magnetic core simultaneously, only has access the natural mode of a circuit signal；This reality
Need the circuit signal of suppression with novel four tunnels that can be simultaneously directed on a magnetic core, reached reduction cost, reduced circuit
The excellent results of board space.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is further described for the ease of it will be appreciated by those skilled in the art that.
Fig. 1 is this utility model a kind of many circuit signals suppression common mode inductance structural representation；
Fig. 2 is this utility model a kind of many circuit signals suppression common mode inductance side schematic view；
Fig. 3 is this utility model base plate schematic diagram.
Detailed description of the invention
A kind of many circuit signals suppression common mode inductance, as it is shown in figure 1, include the magnetic core 1 of annular, cross in insert 2 with
And base plate 3, wire 4；
Insert in cross in 2 magnetic cores 1 being arranged on annular, whole magnetic core 1 is divided into four regions；In each region
In the face of one group of conductive coil, each group of conductive coil should be had to be formed by identical and independent wire 4 coiling, wire 4 is poly-ammonia
Ester enameled wire leads；The enamel-covered wire number of turn in each region is the most identical with coiling direction, to guarantee the inductance value in four regions
Numerical value is unanimously；
All having one group of conductive coil in each region, as a example by some region, often group conductive coil all can form two
Lead terminal, respectively input lead 41 and output lead 42, as shown in Figure 2；After the most respectively these two lead-in wires being drawn admittedly
Being scheduled on base plate 3, base plate 3 is provided with the pin bores that two rows are corresponding with lead-in wire, when Pin arrangement, by whole for input lead 41 phases
That answers is connected in string pin bores, is then connected in another row pin bores by the most corresponding for output lead 42, sees figure
3；
The connecting mode of other trizonal winding method and pin is all with the most consistent；
After all guiding on base plate 3 Deng eight pins, with epoxy glue 5 by wire 4 and base plate 3, magnetic core 1 and in insert 2 respectively
Fix, allow for magnetic core 1, wire 4 and base plate 3 and be fixed as an entirety.Then the wire that eight are exposed base plate is cut into one
The length that sample is neat, then the polyurethane coat of paint on clean wire 4 surface is shelled respectively with peeling machine, then leaching is upper without slicker solder, finally by whole
Common mode inductance after machining can be mounted directly on circuit boards, it is possible to reaches four single effects organizing common mode inductance,
Add integration and the aesthetic property of whole circuit board, also greatly reduce production cost.
This utility model changes the preparation of the most traditional common mode inductance, installation method, by four single channel common mode inductances
Be integrated on a common mode inductance, the magnetic core 1 that annular utilize one cross in insert and 2 whole magnetic core be divided into four
Decile, is namely divided into four regions, such as Fig. 1.A pair input lead and output lead it is respectively connected to, then inside each region
Being fixed on base plate 3 after respectively these two lead-in wires being drawn, base plate 3 is provided with the pin bores that two rows are corresponding with lead-in wire, at lead-in wire
Input lead is connected to the most accordingly in string pin bores during arrangement, then the most corresponding for output lead is connected to separately
In string pin bores, finally whole common mode inductance can be mounted directly on circuit boards, it is possible to reach four single group common modes
The effect of inductance.
Above content is only to this utility model structure example and explanation, the technology people of affiliated the art
Described specific embodiment is made various amendment or supplements or use similar mode to substitute, without departing from reality by member
By novel structure or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. circuit signal more than a kind suppression common mode inductance, it is characterised in that include annular magnetic core (1), cross in insert (2)
And base plate (3), wire (4)；
Described cross in insert (2) be arranged on annular magnetic core (1) in, magnetic core (1) is divided into four regions；Each described district
Being correspondingly provided with one group of conductive coil in territory, this conductive coil is formed by identical and independent wire (4) coiling；
Often organize described conductive coil and be provided with two lead terminals, respectively input lead (41) and output lead (42), above-mentioned two
Root lead-in wire is fixed on base plate (3) after drawing；
Described base plate (3) is provided with the pin bores that two rows are corresponding with lead-in wire；Often organize described input lead (41) to be connected to accordingly
In string pin bores, what described output lead (42) was corresponding is connected in another row pin bores.
One the most according to claim 1 many circuit signals suppression common mode inductance, it is characterised in that described wire (4) is
Polyurethane enamelled wire wire；The enamel-covered wire number of turn in each described region is the most identical with coiling direction.
One the most according to claim 1 many circuit signals suppression common mode inductance, it is characterised in that described wire (4) with
Base plate (3), magnetic core (1) and in insert (2) all fixed respectively by epoxy glue (5).
One the most according to claim 1 many circuit signals suppression common mode inductance, it is characterised in that described wire (4) table
After face polyurethane coat of paint is peeled off, then leaching is upper without slicker solder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620777553.2U CN205828054U (en) | 2016-07-22 | 2016-07-22 | A kind of many circuit signals suppression common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620777553.2U CN205828054U (en) | 2016-07-22 | 2016-07-22 | A kind of many circuit signals suppression common mode inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205828054U true CN205828054U (en) | 2016-12-21 |
Family
ID=57560531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620777553.2U Active CN205828054U (en) | 2016-07-22 | 2016-07-22 | A kind of many circuit signals suppression common mode inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205828054U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768159A (en) * | 2018-07-19 | 2018-11-06 | 深圳振华富电子有限公司 | Doubleway output DC power supply electromagnetic interface filter |
| WO2021168797A1 (en) * | 2020-02-28 | 2021-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Common mode choke |
| CN108768159B (en) * | 2018-07-19 | 2024-05-31 | 深圳振华富电子有限公司 | Dual-output direct-current power supply EMI filter |
-
2016
- 2016-07-22 CN CN201620777553.2U patent/CN205828054U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768159A (en) * | 2018-07-19 | 2018-11-06 | 深圳振华富电子有限公司 | Doubleway output DC power supply electromagnetic interface filter |
| CN108768159B (en) * | 2018-07-19 | 2024-05-31 | 深圳振华富电子有限公司 | Dual-output direct-current power supply EMI filter |
| WO2021168797A1 (en) * | 2020-02-28 | 2021-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Common mode choke |
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