CN206163282U - PFC inductance - Google Patents
PFC inductance Download PDFInfo
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- CN206163282U CN206163282U CN201621241726.5U CN201621241726U CN206163282U CN 206163282 U CN206163282 U CN 206163282U CN 201621241726 U CN201621241726 U CN 201621241726U CN 206163282 U CN206163282 U CN 206163282U
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- magnetic core
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Abstract
The utility model relates to a PFC inductance, it has been solved current PFC inductance and has taken place withstand voltage unusually easily, the terminal takes place easily to leak and welds, technical problem that production efficiency is low, it includes the air core coil and moulds plastics skeleton integration assembly, upper magnetic core and lower magnetic core, the air core coil with mould plastics skeleton integration assembly including moulding plastics skeleton and air core coil, the air core coil is lived to the skeleton of moulding plastics parcel, the skeleton of moulding plastics is equipped with the centre bore, and the both sides of the skeleton of moulding plastics are equipped with first stitch lead -out portion and second stitch lead -out portion respectively, lower magnetic core is equipped with down cylinder portion and coil standing groove, and upper magnetic core is equipped with cylinder portion and coil standing groove, during lower magnetic core and upper magnetic core 's coil standing groove was located with the skeleton integration assembly that moulds plastics to the air core coil, during upper magnetic core 's last cylinder portion located the centre bore of the skeleton of moulding plastics, lower magnetic core's lower cylinder portion located in the centre bore of the skeleton of moulding plastics, first stitch lead -out portion is do not followed to two tip of air core coil and second stitch lead -out portion stretches out, but its wide application in inductance technical field.
Description
Technical field
The utility model is related to a kind of electronic device, specifically a kind of PFC inductance.
Background technology
Inductor be for the part of Power convert in the electronic equipments such as TV, radio, the communication apparatus, its make voltage or
Electric current is transformed into other energy, plays a part of current stabilization.PFC inductance is used in pfc circuit, and the English full name of PFC is
" Power Factor Correction ", means " PFC ", power factor refers to effective power with total power consumption
Relation between amount (apparent energy), that is, effective power is divided by the ratio of total power consumption (apparent energy).Substantially power
Factor can weigh the degree that electric power is used effectively, and when power factor value is bigger, represent its electric power utilization rate higher.
Computer switching power supply is a kind of condenser input type circuit, and the phase difference between its electric current and voltage can cause to exchange
The loss of power, now just needs pfc circuit to improve power factor.Current pfc circuit has two kinds, is respectively passive PFC
(also referred to as passive PFC) and active PFC (also referred to as active PFC).
The primary structure of existing PFC inductance is by skeleton, the coil of multiply silk-covered copper wire coiling and manganese-zinc ferrite core
(Mn-Zn) three parts composition, production process is that winding multi-strand silk-covered copper wire forms coil first on skeleton, will after the completion of coiling
End copper cash is wound on the tinning steel-in-copper PIN terminals of skeleton, after the completion of carry out scolding tin, then using glue by magnetic core and bone
Frame assembling is secured together.However, there is the low technical problem of efficiency in existing production process.Additionally, PFC inductance uses many
Stock silk-covered copper wire, multiply silk-covered copper wire is many due to copper cash number of share of stock, generating unit share split number is very easy to during scolding tin and is not welded
The rosin joint phenomenon of tin, PFC inductor sizes are bigger, and the multiply silk-covered copper wire for using is more, are more susceptible to part number of share of stock solder skip
It is abnormal.
Because voltage is very high in PFC inductive circuits, it is desirable to which PFC inductance is it is necessary to have very high pressure performance, i.e. copper cash
(Coil) pressure very high and manganese-zinc ferrite core (Mn-Zn) between, the magnetic core that PFC inductance is used is manganese-zinc ferrite core
(Mn-Zn), manganese-zinc ferrite core has relatively low resistivity, therefore pressure performance is very low, and the copper cash of existing PFC inductance is again
With magnetic core contact, this is just very easy to pressure exception, and it is breakdown that PFC inductance cannot bear high pressure, causes PFC inductance to lose
Effect, circuit burnout.Simultaneously PFC inductance uses multiply silk-covered wire, in the case that winding state is bad, it is easier to which pressure exception occurs
Phenomenon.
The content of the invention
The utility model is exactly to be susceptible to pressure exception to solve existing PFC inductance, and terminal carries out easy during scolding tin
Generation solder skip, the technical problem of low production efficiency, there is provided one kind can avoid pressure abnormal, solder skip from occurring, and production efficiency is high
PFC inductance.
The technical solution of the utility model is to provide a kind of PFC inductance, including air core coil and injection skeleton integration group
Part, upper magnetic core and lower magnetic core, air core coil and injection skeleton integral component include injection skeleton and air core coil, are molded skeleton
Wrap air core coil；
Injection bone sets up centre bore, and be molded skeleton is respectively provided on two sides with the first stitch lead division and the extraction of the second stitch
Portion；
Lower magnetic core is provided with lower cylindrical portion and coil standing groove, and upper magnetic core is provided with cylindrical portion and coil standing groove；
Air core coil and injection skeleton integral component are located in the coil standing groove of lower magnetic core and upper magnetic core, upper magnetic core
In the centre bore of injection skeleton, the lower cylindrical portion of lower magnetic core is in the centre bore of injection skeleton for upper cylindrical portion；
Stretch out from the first stitch lead division and the second stitch lead division respectively two ends of air core coil；Air core coil
Two end tip appearances are connected with soldering-tin layer.
Preferably, the first stitch lead division for being molded skeleton is provided with the first groove, and it is recessed that the second stitch lead division is provided with second
Groove；Two ends of air core coil are folded into respectively in the first groove and the second groove, while being fixed using glue.
Preferably, it is provided with gap between the lower cylindrical portion of lower magnetic core and the upper cylindrical portion of upper magnetic core.
Preferably, the upper and lower surfaces for being molded skeleton are respectively equipped with hole.
The beneficial effects of the utility model are that low cost, production efficiency is high, have prevented the abnormal generation of solder skip, are prevented
Pressure abnormal generation between copper cash and magnetic core.
The utility model further feature and aspect, by the description below with reference to the specific embodiment of accompanying drawing,
It is clearly stated that.
Description of the drawings
Fig. 1 is the stereogram of inductor；
Fig. 2 is the front view of inductor；
Fig. 3 is the right view of inductor；
Fig. 4 is inductor explosive view；
Fig. 5 is to be molded the integral component figure that skeleton parcel air core coil is formed；
Fig. 6 is the perspective view for being molded the integral component that skeleton parcel air core coil is formed；
Fig. 7 is the structural representation of air core coil；
Fig. 8 is the side view of air core coil in Fig. 7；
Fig. 9 is the structural representation of upper magnetic core；
Figure 10 is the top view of upper magnetic core in Fig. 9；
Figure 11 is the structural representation of lower magnetic core；
Figure 12 is the top view of lower magnetic core in Figure 11；
Figure 13 is the front view of lower magnetic core in Figure 11；
Figure 14 is the right view of lower magnetic core in Figure 11.
Symbol description in figure：
10. air core coil and injection skeleton integral component；11. injection skeletons；12. air core coils；13. centre bores；14.
Hole；15. first stitch lead divisions；16. second stitch lead divisions；151. first grooves；161. second grooves；Magnetic core on 20.；
30. times magnetic cores；31. times cylindrical portions；32. coil standing grooves.
Specific embodiment
Referring to the drawings, the utility model is described in further detail with specific embodiment.
As Figure 1-4, inductor includes air core coil and injection skeleton integral component 10, upper magnetic core 20 and lower magnetic core
30, air core coil and injection skeleton integral component 10 are arranged between magnetic core 20 and lower magnetic core 30.
As viewed in figures 5-8, the manufacturing process of air core coil and injection skeleton integral component 10 is, first by full-automatic
Coil winding machine coiling air core coil 12, then air core coil 12 is fixed on injection mold be molded, and is formed injection bone
Frame 11, is so molded skeleton 11 and just wraps air core coil 12, and air core coil 12 is fully located inside injection skeleton 11.Injection bone
The material of frame 11 can be LCP, PPT etc..
Because air core coil 12 is provided with centre bore, the injection skeleton 11 for being formed also is provided with centre bore 13.Injection skeleton
11 are respectively provided on two sides with the first stitch lead division 15, the second stitch lead division 16, are molded on the upper and lower surfaces of skeleton 11 point
Uniform four hole 14 is not provided with, the air core coil 12 of inside can be seen by hole 14.In injection mold, in order to fix
Air core coil 12, air core coil 12 is withstood with push rod from both sides, is formed hole 14.
Stretch out from the first stitch lead division 15, the second stitch lead division 16 respectively two ends of air core coil 12.By sky
Two ends immersion solder bath of wire-core coil 12, makes two end tips wrap up one layer of scolding tin in appearance, material is thus formed use
In the PIN terminals being plugged on pcb board, the structure eliminates the tinning steel-in-copper PIN terminals that conventional inductor is used, therefore drops
Low cost, improves production efficiency.Meanwhile, two end buttock line multiply silk-covered copper wires of air core coil 12 are during scolding tin
Directly contact tin, has prevented the abnormal generation of solder skip.
But, the PIN terminals for being provided with soldering-tin layer are after all copper cash, softer than conventional tinning steel-in-copper PIN terminals, because
This PIN terminal is susceptible to crooked.In order to solve this problem, the is arranged on the first stitch lead division 15 of injection skeleton 11
One groove 151, arranges the second groove 161 on the second stitch lead division 16.PIN terminals are folded into into the first groove 151, second
In groove 161 (as indicated in figs. 1 and 3), while being fixed using glue, so PIN terminals can be completely fixed, Bu Huifa
The crooked phenomenon of life, while copper cash can be protected, reaches and the duplicate effect of conventional tinning steel-in-copper PIN terminals.
As illustrated in figs. 11-14, it is rectangle that lower magnetic core 30 is overall, and its middle part is provided with lower cylindrical portion 31, the week of lower cylindrical portion 31
It is coil standing groove 32 to enclose.
Upper magnetic core 20 as shown in Figures 9 and 10, it is identical with the structure of lower magnetic core 30.Upper magnetic core 20 is provided with cylindrical portion,
It is coil standing groove around upper cylindrical portion.Upper magnetic core 20 and lower magnetic core 30 are manganese-zinc ferrite core.
During assembling inductor finished product, air core coil and injection skeleton integral component 10 are from up to down placed on into lower magnetic core 30
Coil standing groove 32 on, lower cylindrical portion 31 through injection skeleton 11 centre bore 13, then by the upper cylindrical portion of upper magnetic core 20
In the centre bore 13 of insertion injection skeleton 11.Skeleton 11 will be molded with glue and lower magnetic core 30, upper magnetic core 20 stick together.This
Sample, air core coil 12 is placed in the coil standing groove of magnetic core 20 and lower magnetic core 30.Lower cylindrical portion 31 and upper magnetic core 20
Upper cylindrical portion between be provided with gap, the gap be used for adjust product performance, different gaps is corresponding with winding turns different
Product performance.
The copper cash of air core coil 12 completely without and upper magnetic core 20, lower magnetic core 30 contact possibility, thoroughly fundamentally shut out
Absolutely pressure abnormal generation between copper cash and magnetic core.
The above only to preferred embodiment of the present utility model, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.
Claims (4)
1. a kind of PFC inductance, is characterized in that, including air core coil and injection skeleton integral component, upper magnetic core and lower magnetic core, institute
Stating air core coil and injection skeleton integral component includes injection skeleton and air core coil, and the injection skeleton wraps tubular wire
Circle；
The injection bone sets up centre bore, and the injection skeleton is respectively provided on two sides with the first stitch lead division and the second stitch
Lead division；
The lower magnetic core is provided with lower cylindrical portion and coil standing groove, and the upper magnetic core is provided with cylindrical portion and coil standing groove；
The air core coil and injection skeleton integral component are described in the coil standing groove of the lower magnetic core and upper magnetic core
In the centre bore of the injection skeleton, the lower cylindrical portion of the lower magnetic core is located at the injection bone to the upper cylindrical portion of upper magnetic core
In the centre bore of frame；
Stretch out from the first stitch lead division and the second stitch lead division respectively two ends of the air core coil；
Two end tip appearances of the air core coil are connected with soldering-tin layer.
2. PFC inductance according to claim 1, it is characterised in that the first stitch lead division of the injection skeleton is provided with
First groove, the second stitch lead division is provided with the second groove；It is recessed that two ends of the air core coil are folded into respectively first
In groove and the second groove, while being fixed using glue.
3. PFC inductance according to claim 2, it is characterised in that the lower cylindrical portion of the lower magnetic core and upper magnetic core it is upper
Gap is provided between cylindrical portion.
4. PFC inductance according to claim 3, it is characterised in that the upper and lower surfaces of the injection skeleton are respectively equipped with
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241726.5U CN206163282U (en) | 2016-11-17 | 2016-11-17 | PFC inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621241726.5U CN206163282U (en) | 2016-11-17 | 2016-11-17 | PFC inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206163282U true CN206163282U (en) | 2017-05-10 |
Family
ID=58660709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621241726.5U Active CN206163282U (en) | 2016-11-17 | 2016-11-17 | PFC inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206163282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060550A1 (en) * | 2021-10-15 | 2023-04-20 | 广东伊戈尔智能电器有限公司 | Injection molded inductive apparatus, powder magnetic core, and injection molding method |
-
2016
- 2016-11-17 CN CN201621241726.5U patent/CN206163282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060550A1 (en) * | 2021-10-15 | 2023-04-20 | 广东伊戈尔智能电器有限公司 | Injection molded inductive apparatus, powder magnetic core, and injection molding method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.34-10, Guangzhou road, Wendeng Economic Development Zone, Weihai City, Shandong Province 264400 Patentee after: Maishiteng Technology (Shandong) Co.,Ltd. Address before: 264400 No.7-1, 7-2, 7-3, Kuncheng street, Wendeng City, Weihai City, Shandong Province Patentee before: WENDENG MST ELECTRONIC Co.,Ltd. |