CN107785159A - PFC inductor - Google Patents
PFC inductor Download PDFInfo
- Publication number
- CN107785159A CN107785159A CN201610788331.5A CN201610788331A CN107785159A CN 107785159 A CN107785159 A CN 107785159A CN 201610788331 A CN201610788331 A CN 201610788331A CN 107785159 A CN107785159 A CN 107785159A
- Authority
- CN
- China
- Prior art keywords
- bobbin
- pfc
- winding
- main core
- core portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000411 inducer Substances 0.000 claims description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 23
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000011900 installation process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a PFC inductor, which adopts a brand-new square magnetic core design, wherein the periphery of a winding group is surrounded by a side wing part, so that better magnetic shielding can be formed, the assembly in the production process can be greatly facilitated through a combination mode of a symmetrical base and a winding framework, the production efficiency is improved, the winding mode of a circular shaft is matched with a circular main core part, so that the winding and installation process is simpler, the volume of the winding framework can be reduced, and an arc-shaped notch avoiding the winding group is arranged on the inner side of the side wing part, so that the volume of the base can be further reduced under the condition of not reducing the winding group, and the volume of the PFC inductor is smaller. The invention can replace various annular inductance coils, has wide application field, has high energy efficiency and low loss, can improve the efficiency of the whole machine because of better magnetic shielding, and has good heat dissipation effect because of low loss.
Description
Technical field
The present invention relates to magnetic elements technical field, particularly a kind of PFC inducer.
Background technology
Current power supply, the phase difference between electric current and voltage can form harmonic current, and the presence of harmonic current causes
Total power consumption (apparent energy) is much higher than effective power, causes to exchange the loss of power, wastes a large amount of electric energy.In order to suppress humorous
Ripple, computer power supply are required for improving power factor using PFC (power factor corrector) inductance, and power factor refers to effectively
The ratio of power divided by total power consumption (apparent energy).
Traditional PFC inducer, the main magnetic core for including being built up by cold-reduced silicon sheet, the magnetic core is UU types, and winding twines
Lead is drawn after magnetic core.Its winding of this PFC inducer is exposed on magnetic core, it is impossible to which preferably electromagnetic shielding, leakage field is high, damage
Consumption is big, and cold-reduced silicon sheet has lacking for the important performances such as magnetic conductivity is not high, exciting power is bigger than normal and iron loss is higher in itself
Fall into, cause power factor (PF) not high (typically below 0.70), higher (the full load coil temperature of temperature rise of this passive PFC inductor
Degree more than 120 DEG C), volume it is larger, and these all be hinder power source development important bottleneck.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of small volume, PFC inducer.
Technical scheme is used by the present invention solves its problem：
A kind of PFC inducer, including the magnetic core formed by two square base Symmetric Composites, the coiling that is nested on magnetic core
Skeleton and coiling group；
The pedestal includes main core portion, for cylinder；Multiple flank sections, are arranged at the surrounding of pedestal, adjacent flank section it
Between be provided with fluting；
The perforation roughly the same with main core shape is provided with the bobbin, the perforation is arranged in main core portion,
Bobbin is arranged in space between main core portion and flank section, and the middle part of the bobbin is a circle around axle, institute
State coiling group and be wrapped in circle on axle, the inner side of the flank section is provided with the arc notch for avoiding coiling group.
Further, the bobbin is respectively arranged at the circular osteocomma around axle both sides including two pieces, is set on the osteocomma
It is equipped with the dished cover for covering arc notch.
Further, the bobbin is provided with multiple outwardly directed pole foot supports at fluting respectively, the pole pin
The pole pin for being connected with wiring board is provided with support.
Further, all it is arranged at bobbin wherein as a kind of above-mentioned improved procedure, described pole foot support
On a piece of osteocomma.
Further, as above-mentioned another improved procedure, the pole foot support is respectively arranged at the same of two pieces of osteocommas
On side.
Further, it is provided with radiating guide groove between fluting and main core portion on the pedestal.
Further, the projection to match with radiating guide groove is provided with the bobbin.
Further, one is provided with the projection and crosses mouth.
Further, the both sides of the magnetic core are provided with firmly grasps piece, the base for two groups of pedestals to be firmly grasped into fixed aluminium foil
The locating slot that piece is firmly grasped for positioning aluminium foil is provided with seat.
Further, it is each provided with a chamfering on two arms of angle on the outside of the flank section.
The beneficial effects of the invention are as follows：A kind of PFC inducer that the present invention uses, designed using brand-new square core,
Being surrounded in the surrounding of coiling group has flank section, can form more preferable magnetic screen, present invention employs a cylindrical main core portion,
Its cross-sectional area is bigger compared with common UU types or square main core, passes through the combination of symmetrical pedestal and bobbin, energy
Greatly facilitate assembling in production process, improve production efficiency, with circular main core portion matchingly using it is circular around axle around
Not only its coiling and mounting process are simpler for line mode, and can reduce the volume of bobbin, and the flank section of the present invention
Inner side is provided with the arc notch for avoiding coiling group, and the volume of pedestal can be further reduced in the case where not reducing coiling group, is made
The volume of PFC inducer is smaller.The present invention is applied to household electrical appliances, communication, green illumination, office automatic, automotive electronics, new energy
(electric automobile, energy storage power station, photovoltaic, wind energy, LED etc.) etc., it is very wide instead of all kinds of toroidal inductors, its application field
General, because the present invention can form more preferable magnetic screen, therefore its efficiency is high and low is lost, can lift overall efficiency, and due to it
Low-loss, therefore good heat dissipation effect.
Brief description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the dimensional structure diagram of first embodiment of the invention；
Fig. 2 is the structure decomposition figure of first embodiment of the invention；
Fig. 3 is the structural representation of pedestal of the present invention；
Fig. 4 is the dimensional structure diagram of second embodiment of the invention；
Fig. 5 is the structure decomposition figure of second embodiment of the invention.
Embodiment
Reference picture 1- Fig. 5, a kind of PFC inducer of the invention, including the magnetic formed by two Symmetric Composites of square base 2
Core 1, the bobbin 3 being nested on magnetic core 1 and coiling group；
The pedestal 2 includes main core portion 21, for cylinder；Multiple flank sections 22, it is arranged at the surrounding of pedestal 2, sides adjacent
Fluting 23 is provided between alar part 22；
The perforation 31 roughly the same with the shape of main core portion 21 is provided with the bobbin 3, the perforation 31 is arranged on master
On core 21, bobbin 3 is arranged in the space between main core portion 21 and flank section 22, and the middle part of the bobbin 3 is
One circle around axle 32, the coiling group be wrapped in it is circular (do not provided in figure) on axle 32, using cylindrical main core portion 21 its
Cross-sectional area is bigger, not only its coiling and mounting process are simpler using the circular winding mode around axle 32 for bobbin 3, and
And the volume of bobbin 3 can be reduced, and in order to further reduce the volume of pedestal 2, the inner side of the flank section 22, which is provided with, to be kept away
Allow the arc notch 221 of coiling group.
The present invention is designed using brand-new square core 1, and being surrounded in the surrounding of coiling group has flank section 22, can be formed more preferable
Magnetic screen, wherein employing a cylindrical main core portion 21, its cross-sectional area compared with common UU types or square main core
It is bigger, by the combination of symmetrical pedestal 2 and bobbin 3, the assembling in production process can be greatly facilitated, improves production
Efficiency, matchingly using the circular winding mode around axle 32, not only its coiling and mounting process are simpler with circular main core portion 21
It is single, and the volume of bobbin 3 can be reduced, and the inner side of flank section 22 of the present invention is provided with the arc notch for avoiding coiling group
221, the volume of pedestal 2 can be further reduced in the case where not reducing coiling group, makes the volume of PFC inducer smaller.This hair
It is bright be applied to household electrical appliances, communication, green illumination, office automatic, automotive electronics, new energy (electric automobile, energy storage power station, photovoltaic,
Wind energy, LED etc.) etc., instead of all kinds of toroidal inductors, its application field is quite varied, because the present invention can be formed preferably
Magnetic screen, therefore the high and low loss of its efficiency, can lift overall efficiency, and due to its low-loss, therefore good heat dissipation effect.
The present invention can be obviously improved the effect of complete machine electromagnetism interference (EMI) and electromagnetic interference (EMC), resistance to high current, tool
There are the good superimposed characteristics of resistance to AC-to-DC, have a safety feature, change traditional endless PFC and make industry mode by hand, reduce copper cash paint
Bag damage degree, product application risk is reduced, improve the life-span of product.The scope of application of the present invention is wide, and it effectively produces appearance and repaid, to it
Its electronic component requires to reduce, and effectively reduces the requirement of electric capacity.The structure and production technology uniformity of the present invention is good.
Specifically, the bobbin 3 is respectively arranged at the circular osteocomma 33 around the both sides of axle 32 including two pieces, in order to avoid
Coiling group is exposed on arc notch 221, improves the security of PFC inductance, is provided with the osteocomma 33 for covering arc
The dished cover 34 of breach 221.
Further, the bobbin 3 is provided with multiple respectively from described in outwardly directed pole foot support 35. at fluting 23
The pole pin 36 for being connected with wiring board is provided with pole foot support 35.By setting pole foot support 35 to increase the steady of pole pin 36
Solidity, and by pole pin 36 PFC inducer can be allowed to be welded and fixed on circuit boards, its mounting means is very convenient.
Further, referring to figs. 1 to shown in Fig. 2, for the first embodiment of the present invention,.Described pole foot support 35 has 4
It is individual, all it is arranged on the wherein a piece of osteocomma 33 of bobbin 3.The design can allow PFC inducer to lie low installed in circuit board
On, its longitudinal direction is highly relatively low, suitable for the more close trace arrangements of longitudinal space.
Further, reference picture 4 is to shown in Fig. 5, and for second of embodiment of the present invention, pole foot support 35 has 4, above-mentioned
The different place of embodiment is that the pole foot support 35 is respectively arranged on the same side of two pieces of osteocommas 33.The design can allow
Uprightly on circuit boards, its horizontal area is smaller, suitable for the more close trace arrangements of horizontal space for installation for PFC inducer.
In summary, the type position of PFC capacitors of the present invention is variable (such as vertical type or tiling), the effectively save design space of energy,
And its stitch tolerance uniformity is good, part mate efficiency is lifted.
The radiating of PFC inducer is particularly significant, in order to solve the problems, such as radiating, appears in radiating is provided with main core portion at present
Perforation, to reach the purpose of quick heat radiating, but the design can reduce the cross-sectional area in main core portion 21, cause its loss increase,
Efficiency reduces, and the present invention solves PFC inducer by setting radiating guide groove 24 between the fluting 23 on pedestal 2 and main core portion 21
Heat dissipation problem, heat sheds from the radiating guide groove 24 on pedestal 2, and in order to further enhance the radiating effect of PFC inducer,
Two radiating guide grooves 24 are symmetrically arranged with the pedestal 2, heat loss through convection effect is formed, more preferable radiating can be brought.
Further, bobbin 3 is positioned in order to facilitate in production process, on the osteocomma 33 of the bobbin 3
It is provided with the projection 37 to match with radiating guide groove 24.During assembling, the projection 37 is corresponding to be arranged on above-mentioned one of radiating
In guide groove 24.
Further, production when, in order to ensure inductor security, it is necessary to which coiling group and bobbin 3 are immersed in
Insulating barrier is formed in insulating oil, in order that insulating oil preferably contacts with coiling group, one is provided with the projection 37 and crosses mouth 38.When
When bobbin 3 is immersed in insulating oil, insulating oil enters in bobbin 3 from the mouth 38 excessively on projection 37 to be connect with coiling group
Touch.
Further, because magnetic core 1 is combined by two pedestals 2, therefore, in order to fasten two above-mentioned pedestals 2, keep
The rock-steady structure of magnetic core 1, the both sides of the magnetic core 1 are provided with firmly grasps piece 4, institute for two groups of pedestals 2 to be firmly grasped into fixed aluminium foil
State the locating slot 25 for being provided with pedestal 2 and piece 4 being firmly grasped for positioning aluminium foil.
In order to further reduce the volume of inductor, one is each provided with two arms of angle 222 in the outside of flank section 22
Individual chamfering 223.
It is described above, simply presently preferred embodiments of the present invention, the invention is not limited in above-mentioned embodiment, as long as
It reaches the technique effect of the present invention with identical means, should all belong to protection scope of the present invention.
Claims (8)
- A kind of 1. PFC inducer, it is characterised in that：Including the magnetic core (1), embedding formed by two square base (2) Symmetric Composites Bobbin (3) and the coiling group being enclosed on magnetic core (1)；The pedestal (2) includes main core portion (21), for cylinder；Multiple sides Alar part (22), the surrounding of pedestal (2) is arranged at, fluting (23) is provided between adjacent flank section (22)；The bobbin (3) On be provided with the perforation (31) roughly the same with main core portion (21) shape, the perforation (31) is arranged on main core portion (21), coiling Skeleton (3) is arranged in the space between main core portion (21) and flank section (22), and the middle part of the bobbin (3) is a circle For shape around axle (32), the coiling group is wrapped in circle on axle (32), and the inner side of the flank section (22), which is provided with, avoids coiling group Arc notch (221)；The bobbin (3) includes two pieces and is respectively arranged at the circular osteocomma (33) around axle (32) both sides, The dished cover (34) for covering arc notch (221) is provided with the osteocomma (33)；The bobbin (3) is provided with multiple It is provided with respectively from outwardly directed pole foot support (35) from fluting (23), the pole foot support (35) for connecting with wiring board The pole pin (36) connect.
- A kind of 2. PFC inducer according to claim 1, it is characterised in that：Described pole foot support (35) is all set In on the wherein a piece of osteocomma (33) of bobbin (3).
- A kind of 3. PFC inducer according to claim 1, it is characterised in that：The pole foot support (35) is respectively arranged at On the same side of two pieces of osteocommas (33).
- 4. according to a kind of any described PFC inducers of claim 1-3, it is characterised in that：(23) are slotted on the pedestal (2) Radiating guide groove (24) is provided between main core portion (21).
- A kind of 5. PFC inducer according to claim 4, it is characterised in that：It is provided with and dissipates on the bobbin (3) The projection (37) that thermal conductivity groove (24) matches.
- A kind of 6. PFC inducer according to claim 5, it is characterised in that：One is provided with the projection (37) and crosses mouth (38)。
- A kind of 7. PFC inducer according to claim 6, it is characterised in that：The both sides of the magnetic core (1), which are provided with, to be used for Two groups of pedestals (2) are firmly grasped into fixed aluminium foil and firmly grasp piece (4), is provided with the pedestal (2) and firmly grasps piece (4) for positioning aluminium foil Locating slot (25).
- A kind of 8. PFC inducer according to claim 7, it is characterised in that：Two angles on the outside of the flank section (22) A chamfering (223) is each provided with side (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788331.5A CN107785159A (en) | 2016-08-25 | 2016-08-25 | PFC inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610788331.5A CN107785159A (en) | 2016-08-25 | 2016-08-25 | PFC inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107785159A true CN107785159A (en) | 2018-03-09 |
Family
ID=61451397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610788331.5A Pending CN107785159A (en) | 2016-08-25 | 2016-08-25 | PFC inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107785159A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516583A (en) * | 2017-10-18 | 2017-12-26 | 冯迎安 | A kind of Novel inductor |
| CN107527722A (en) * | 2017-10-18 | 2017-12-29 | 冯迎安 | A kind of low magnetism leakage, low-loss, efficient PFC inducer |
-
2016
- 2016-08-25 CN CN201610788331.5A patent/CN107785159A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516583A (en) * | 2017-10-18 | 2017-12-26 | 冯迎安 | A kind of Novel inductor |
| CN107527722A (en) * | 2017-10-18 | 2017-12-29 | 冯迎安 | A kind of low magnetism leakage, low-loss, efficient PFC inducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI379329B (en) | Transformer structure | |
| CN101807476A (en) | Transformer structure | |
| CN107527722A (en) | A kind of low magnetism leakage, low-loss, efficient PFC inducer | |
| JP3164981U (en) | Symmetric parallel induction coil applied to electromagnetic equipment | |
| CN107785159A (en) | PFC inductor | |
| CN204760167U (en) | High -power high -frequency transformer | |
| JP2010525600A5 (en) | ||
| CN107516583A (en) | A kind of Novel inductor | |
| CN202918035U (en) | Vehicle-used transformer inductor three-in-one device | |
| CN102881405B (en) | Combining structure of transformer and inductance element and forming method thereof | |
| CN104882260A (en) | Planar transformer | |
| CN201754366U (en) | Transformer structure | |
| Josifović et al. | New double-sided SMT power inductor | |
| CN106373733B (en) | A kind of adjustable flat surface transformer and its manufacture method | |
| CN203850139U (en) | Annular transformer with supports | |
| CN209233739U (en) | A kind of novel high-power synchronous rectification high frequency switch power unit module | |
| CN209328667U (en) | A kind of high efficiency and heat radiation inductor | |
| US8766759B2 (en) | Transformer | |
| CN207381242U (en) | A kind of flange-cooled Novel reactor of core structure | |
| CN202384160U (en) | Planar transformer | |
| CN202102849U (en) | High-frequency switching power supply transformer | |
| CN206293274U (en) | Improved transformer structure | |
| CN205881614U (en) | Integrated inductor based on differential mode filtering altogether | |
| CN216054239U (en) | Magnetic ring inductor capable of reducing electrostatic contact | |
| CN220439360U (en) | PCB planar transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |