CN208225643U - A kind of high current flat wire common mode inductance - Google Patents
A kind of high current flat wire common mode inductance Download PDFInfo
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- CN208225643U CN208225643U CN201820420566.3U CN201820420566U CN208225643U CN 208225643 U CN208225643 U CN 208225643U CN 201820420566 U CN201820420566 U CN 201820420566U CN 208225643 U CN208225643 U CN 208225643U
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- flatwise coil
- conductor
- common mode
- flat wire
- coil
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Abstract
The utility model discloses a kind of high current flat wire common mode inductance, including skeleton, magnetic core, the first flatwise coil and the second flatwise coil, in order to guarantee that high current passes through, using wider flat wire, round is formed after first flatwise coil and the second flatwise coil are wound on magnetic core, side close to inner ring be albronze conductor, close to the side of outer ring be Kufil conductor, middle position is pure cu conductor, and coat insulating layer entirely in the outer surface of the first flatwise coil and the second flatwise coil.Since the sequence of conductivity is: albronze conductor > pure cu conductor > Kufil conductor that is to say that diameter is bigger, and conductivity is smaller, cause the problem of voltage not etc. with this to balance the gap of internal diameter and outer diameter after flatwise coil winding.
Description
Technical field
The utility model relates to electronic component field technologies, refer in particular to a kind of high current flat wire common mode inductance.
Background technique
Common mode inductance (Common mode Choke), is also common mode choke, is usually used in filtering in the Switching Power Supply of electric appliance
The electromagnetic interference signal of common mode.In each middle circuit design, common mode inductance is also to play EMI filtering, for inhibiting high speed
The electromagnetic wave outside radiation-emitting that signal wire generates.
Conventional common-mode inductance is to be wrapped in magnetic core two sides using two groups of circular coils, when the line footpath of round wires is smaller, Wu Fatong
Super-high-current.The volume of inductance entirety becomes larger when round wires use big line footpath, and after will lead to winding.Therefore, at present on the market
There is conventional flat wire winding construction.However when flat wire directly around lopping after, there are certain distances with outer ring for inner ring, outside
When the diameter of circle is much larger than inner ring diameter, usual race diameter is the 2 times or more of inner ring diameter.It is meant that the total electricity in outer ring is attached is
2 times or more of inner ring, lead to the presence of voltage difference.
Utility model content
In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of high current
Flat wire common mode inductance puts down the resistance of horizontal entire flatwise coil internal diameter and outer diameter by the conductivity in outside in change flat wire,
Voltage difference is reduced, thus overcome the deficiencies in the prior art.
To achieve the above object, the utility model is using following technical solution:
A kind of high current flat wire common mode inductance, including
One skeleton erects the back side panel formed including a pedestal, from the rear side of pedestal one, from back side panel to extension upwards
The out and vacantly isolation board above pedestal；The bottom of the skeleton is equipped with multiple wiring pins；
One magnetic core is FERRITE CORE, including the first vertical wrapping post, the second wrapping post, the first lateral connecting column,
Second connecting column, making magnetic core is in the square frame shape of center hollow out；
First flatwise coil and the second flatwise coil, first flatwise coil are wrapped on the first wrapping post, this is first flat
The two of them wiring pin in skeleton is respectively welded in the head and the tail both ends of flat coil；Second flatwise coil is wrapped in the second wrapping post
On, the two of them wiring pin in skeleton is respectively welded in the head and the tail both ends of second flatwise coil；The magnetic core and first flat
The entirety that coil, the second flatwise coil three are formed is assemblied on skeleton, and isolation board is made to penetrate the first flatwise coil and second flat
Gap between flat coil；
Round is formed after first flatwise coil and the winding of the second flatwise coil, is albronze close to the side of inner ring
Conductor, close to the side of outer ring be Kufil conductor, middle position is pure cu conductor, and in the first flatwise coil and second
The outer surface of flatwise coil coats insulating layer entirely.
As a preferred embodiment, the albronze conductor, pure cu conductor, seamless knot between Kufil conductor
It closes.
As a preferred embodiment, the width of first flatwise coil and the second flatwise coil be 3-5 times of thickness with
On.
As a preferred embodiment, the top of the back side panel is equipped with two crossed beam trunkings, the first flatwise coil of correspondence and the
The end of two flatwise coils passes through from the crossed beam trunking and is attached to the back side of back side panel, and welds with corresponding wiring pin.
As a preferred embodiment, the left side, right side of the pedestal and rear side are equipped with the block machine to raise upward, are formed
One accommodating cavity, for accommodating the entirety of the magnetic core and the first flatwise coil, the second flatwise coil three formation.
As a preferred embodiment, the skeleton is integral type bakelite body.
The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Scheme is it is found that high current flat wire common mode inductance includes skeleton, magnetic core, the first flatwise coil and the second flatwise coil, in order to protect
Card high current passes through, and using wider flat wire, forms round after first flatwise coil and the winding of the second flatwise coil,
Close to inner ring side be albronze conductor, close to outer ring side be Kufil conductor, middle position is pure cu conductor,
And insulating layer is coated entirely in the outer surface of the first flatwise coil and the second flatwise coil.Since the sequence of conductivity is: copper aluminium
Alloy conductor > pure cu conductor > Kufil conductor that is to say, diameter is bigger, and conductivity is smaller, balance flatwise coil with this
The gap of internal diameter and outer diameter causes the problem of voltage not etc. after winding.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the decomposition diagram of the common mode inductance of the embodiment of the utility model.
Fig. 2 is the bottom schematic view of the skeleton of the embodiment of the utility model.
Fig. 3 is the schematic diagram after the flatwise coil coiling of the embodiment of the utility model.
Fig. 4 is the cut-away view of A-A in Fig. 3.
Description of drawing identification:
10, skeleton 11, pedestal
12, back side panel 13, isolation board
14, wiring pin 15, crossed beam trunking
16, block machine 17, accommodating cavity
20, magnetic core 21, the first wrapping post
22, the second wrapping post 23, the first connecting column
24, the second connecting column 30, the first flatwise coil
31, albronze conductor 32, Kufil conductor
33, pure cu conductor 34, insulating layer
40, the second flatwise coil 50, gap.
Specific embodiment
Please refer to figs. 1 to 4, that show the specific structures of the preferred embodiment of the utility model, are a kind of
High current flat wire common mode inductance, including skeleton 10, magnetic core 20, the first flatwise coil 30 and the second flatwise coil 40.
Wherein, the skeleton 10 is integral type bakelite body.The skeleton 10 includes a pedestal 11, the rear side one from pedestal 11
Body erects the back side panel 12 of formation upwards, forward extended out by back side panel 12 and the isolation board 13 of hanging side on the pedestal 11, uses
It is separated in by the first flatwise coil 30 and the second flatwise coil 40；The bottom of the skeleton 10 is equipped with multiple wiring pins 14, is used for
The input/output of electric current.In the present embodiment, left side, right side and the rear side of the pedestal 11 are equipped with the block machine to raise upward
16, an accommodating cavity 17 is formed, is formed for accommodating the magnetic core 20 and the first flatwise coil 30,40 three of the second flatwise coil
It is whole.The top of the back side panel 12 is equipped with two crossed beam trunkings 15, for the first flatwise coil 30 of correspondence and the second flatwise coil
40 end passes through from the crossed beam trunking 15 and is attached to the back side of back side panel 12, and welds with corresponding wiring pin 14.
The magnetic core 20 is FERRITE CORE 20, including the first vertical wrapping post 21, the second wrapping post 22, lateral the
One connecting column 23, the second connecting column 24, making magnetic core 20 is in the square frame shape of center hollow out, i.e. "mouth" shape.
First flatwise coil 30 and the second flatwise coil 40, first flatwise coil 30 are wrapped in the first wrapping post 21
On, the two of them wiring pin 14 in skeleton 10 is respectively welded in the head and the tail both ends of first flatwise coil 30；Second flat wire
Circle 40 is wrapped on the second wrapping post 22, and the head and the tail both ends of second flatwise coil 40 are respectively welded in the two of them of skeleton 10
Wiring pin 14；The entirety that the magnetic core 20 and the first flatwise coil 30,40 three of the second flatwise coil are formed is assemblied in skeleton 10
On, so that isolation board 13 is penetrated the gap 50 between the first flatwise coil 30 and the second flatwise coil 40.
Cause the problem of voltage not etc. to balance the gap of internal diameter and outer diameter after flatwise coil winding, in the present embodiment,
Round is formed after first flatwise coil 30 and the winding of the second flatwise coil 40, is albronze conductor close to the side of inner ring
31, the side close to outer ring is Kufil conductor 32, middle position is pure cu conductor 33, the albronze conductor 31, pure
Seamless combination between copper conductor 33, Kufil conductor 32.And in the first flatwise coil 30 and the second flatwise coil 40
Outer surface coats insulating layer 34 entirely.In the present embodiment, the width of first flatwise coil 30 and the second flatwise coil 40 is thick
3-5 times or more of degree, outer diameter is the 2 times or more of internal diameter after same coil winding.
The production of the big galvanic flat line common mode inductance of the utility model and working principle are as follows: magnetic core 20 being fixed on and is controlled
On tool, using machine automatic winding the first flatwise coil 30 and the second flatwise coil 40, each layer of the first flatwise coil 30 is mutual
Stacking, each layer of the second flatwise coil 40 is also layered on top of each other, after the completion of winding, first flatwise coil 30, the second flatwise coil
40 and 20 three of magnetic core form entirety, then be installed on skeleton 10, isolation board 13 made to be threaded through the first flatwise coil 30 and second
Gap 50 between flatwise coil 40.Coil head and the tail both ends are respectively welded in corresponding wiring pin 14.Since this is practical
The first novel flatwise coil 30 and the second flatwise coil 40 are different according to diameter after coiling and configure different electric conductors,
In, it is the higher Kufil of conductivity close to the side of outer diameter, is albronze of the conductivity bottom of compared with close to the side of internal diameter,
Centre is the fine copper of conductivity therebetween, so that the resistance of flatwise coil homogenizes, so that the balance of voltage.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (6)
1. a kind of high current flat wire common mode inductance, including
One skeleton (10) erects the back side panel (12) formed, by rear side including a pedestal (11), from the rear side one of pedestal upwards
Plate forward extends out and the hanging isolation board above pedestal (13)；The bottom of the skeleton is equipped with multiple wiring pins (14)；
One magnetic core (20), be FERRITE CORE (, including vertical the first wrapping post (21), the second wrapping post (22), lateral the
One connecting column (23), the second connecting column (24), making magnetic core is in the square frame shape of center hollow out；
First flatwise coil (30) and the second flatwise coil (40), first flatwise coil are wrapped on the first wrapping post (21),
The two of them wiring pin (14) in skeleton is respectively welded in the head and the tail both ends of first flatwise coil；Second flatwise coil winding
On the second wrapping post (22), the two of them wiring pin in skeleton is respectively welded in the head and the tail both ends of second flatwise coil
(14)；The entirety that the magnetic core (20) and the first flatwise coil (30), the second flatwise coil (40) three are formed is assemblied in skeleton
(10) on, the gap (50) that penetrates isolation board (13) between the first flatwise coil and the second flatwise coil；It is characterized by:
Round is formed after first flatwise coil (30) and the second flatwise coil (40) winding, is copper aluminium close to the side of inner ring
Alloy conductor (31), close to the side of outer ring be Kufil conductor (32), middle position is pure cu conductor (33), and in the
The outer surface of one flatwise coil (30) and the second flatwise coil (40) coats insulating layer (34) entirely.
2. a kind of high current flat wire common mode inductance according to claim 1, it is characterised in that: the albronze conductor
(31), seamless combination between pure cu conductor (33), Kufil conductor (32).
3. a kind of high current flat wire common mode inductance according to claim 1, it is characterised in that: first flatwise coil
(30) and the width of the second flatwise coil (40) is 3-5 times of thickness or more.
4. a kind of high current flat wire common mode inductance according to claim 1, it is characterised in that: the back side panel (12)
Top is equipped with two crossed beam trunkings (15), and the end of the first flatwise coil (30) of correspondence and the second flatwise coil (40) is from the crossed beam trunking
(15) back side of back side panel (12) is passed through and be attached to, and is welded with corresponding wiring pin (14).
5. a kind of high current flat wire common mode inductance according to claim 1, it is characterised in that: a left side for the pedestal (11)
Side, right side and rear side are equipped with the block machine (16) to raise upward, are formed an accommodating cavity (17), for accommodating the magnetic core (20)
The entirety formed with the first flatwise coil (30), the second flatwise coil (40) three.
6. a kind of high current flat wire common mode inductance according to claim 1, it is characterised in that: the skeleton (10) is one
Body formula bakelite body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820420566.3U CN208225643U (en) | 2018-03-27 | 2018-03-27 | A kind of high current flat wire common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820420566.3U CN208225643U (en) | 2018-03-27 | 2018-03-27 | A kind of high current flat wire common mode inductance |
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| Publication Number | Publication Date |
|---|---|
| CN208225643U true CN208225643U (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820420566.3U Active CN208225643U (en) | 2018-03-27 | 2018-03-27 | A kind of high current flat wire common mode inductance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435618A (en) * | 2019-01-11 | 2020-07-21 | 京瓷株式会社 | Core member, method of manufacturing core member, and inductor |
| WO2022257914A1 (en) * | 2021-06-09 | 2022-12-15 | 中国科学院电工研究所 | Rotary rectifier suitable for high speed and large current |
-
2018
- 2018-03-27 CN CN201820420566.3U patent/CN208225643U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435618A (en) * | 2019-01-11 | 2020-07-21 | 京瓷株式会社 | Core member, method of manufacturing core member, and inductor |
| WO2022257914A1 (en) * | 2021-06-09 | 2022-12-15 | 中国科学院电工研究所 | Rotary rectifier suitable for high speed and large current |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220602 Address after: 523000 No. 2, hefengwei Industrial Road, Chang'an Town, Dongguan City, Guangdong Province Patentee after: Dongguan Benci Electronics Co.,Ltd. Address before: 523000 Wusha Sixth Industrial Avenue, Chang'an Town, Dongguan City, Guangdong Province Patentee before: BRICH ELECTRONIC (DONGGUAN) CO.,LTD. |