CN204029581U - High insulating planar impedance matching transformer - Google Patents
High insulating planar impedance matching transformer Download PDFInfo
- Publication number
- CN204029581U CN204029581U CN201420511553.9U CN201420511553U CN204029581U CN 204029581 U CN204029581 U CN 204029581U CN 201420511553 U CN201420511553 U CN 201420511553U CN 204029581 U CN204029581 U CN 204029581U
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- skeleton
- impedance matching
- matching transformer
- coil
- high insulating
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Abstract
A kind of high insulating planar impedance matching transformer, base is provided with winding skeleton, winding skeleton is wound with primary coil and secondary coil, described winding skeleton is double flute skeleton, in the first wire casing that primary coil and secondary coil are wound on double flute skeleton respectively and the second wire casing, separated by winding slot dividing plate between the first wire casing and the second wire casing; Double flute frame center is provided with through hole, and multi-piece core is staggered installation of in through hole.The high insulating planar impedance matching transformer of the one that the utility model provides, by adopting double flute skeleton, winding slot dividing plate is utilized effectively to isolate primary coil and secondary coil structure, thus overcome defect of the prior art, make product of the present utility model can realize the high insulating requirements of 4KVAC.
Description
Technical field
The utility model relates to the communication impedance matching transformer in Telecommunication Transformers field, particularly a kind of high insulating planar impedance matching transformer and preparation method.
Background technology
At the communication impedance matching transformer that communication field is widely adopted, have the advantages that pass band, volume are little, meet UL safety, structure as shown in fig. 1, but generally all can only meet within 2KV AC in the requirement of insulation degree, and the communication impedance matching transformer of the high insulating requirements of the market demand, less in the research of communication field, be showed no the communication impedance matching transformer of the requirement that can meet more than 4KV AC at present.
What adopt in prior art is single groove skeleton of thermoplasticity LCP as shown in Figure 1, and through carefully comparing, this material, by yielding after high temperature, easily forms capillary gap at the faying face of sealing and skeleton, under causing high voltage, and the primary and secondary defect easily punctured.
The high insulating planar impedance matching transformer of the one that the utility model provides, by adopting the double flute skeleton of " king " font, winding slot dividing plate is utilized effectively to isolate primary coil and secondary coil structure, thus overcome defect of the prior art, make product of the present utility model can realize the high insulating requirements of 4KV AC.
In the scheme optimized, winding slot dividing plate adopts thermosetting phenolic resin, and make winding slot dividing plate stability height not yielding, thermal change temperature is high, can bear the high temperature of 370 DEG C, and good with the adhering with epoxy resin of embedding.Universal plane impedance matching transformer coil, the enamelled wire of usual employing heatproof 130 DEG C, and the utility model can the P180 enamelled wire of resistance to 180 DEG C of high temperature by adopting, effectively can solve product in later stage paster reflow tin soldering and other production and use procedure, meet the problem that high temperature causes paint film to damage, stopped paint film damage and caused dielectric strength to reduce.
In the scheme optimized, have employed outside primary coil and secondary coil can the KT insulating tape of resistance to 180 DEG C of high temperature, and namely brown paper insulating tape is coated, strengthens isolated insulation effect, and it is injury-free to meet high temperature.
In the scheme of further optimization, transformer finished products is placed in insulation crust, and then the epoxide-resin glue of perfusion modification in shell carries out embedding, after sealing is dried in the shade, can play protection against the tide to product, the effect of against shock and reinforced insulation intensity.
By the scheme of above-mentioned optimization, the highest insulating requirements that can reach 4.6KV AC of product of the present utility model.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of high insulating planar impedance matching transformer, makes it in the high insulating requirements that can reach 4KV AC after Reflow Soldering paster processing procedure, to meet the product demand of market high-end customer to higher insulation.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of high insulating planar impedance matching transformer, comprise base, base is provided with winding skeleton, winding skeleton is wound with primary coil and secondary coil, primary coil is connected with the coil pin being fixed on base two ends with the termination of secondary coil, described winding skeleton is double flute skeleton, in the first wire casing that primary coil and secondary coil are wound on double flute skeleton respectively and the second wire casing, separated by winding slot dividing plate between the first wire casing and the second wire casing;
Double flute frame center is provided with through hole, and multi-piece core is staggered installation of in through hole.
Preferably, described winding slot dividing plate material is thermosetting phenolic resin.
The external sheath of primary coil and secondary coil has the insulating tape of heatproof 180 DEG C.
The height of described winding slot dividing plate is higher than the height of the coil after coated insulation adhesive tape.
Outside base, double flute skeleton and magnetic core, be also provided with insulation crust, in insulation crust, be filled with sealing.
Described sealing is modified epoxy.
Described primary coil and the material of secondary coil are can the enamelled wire of resistance to 180 DEG C of high temperature.
Primary coil is identical with the umber of turn of secondary coil.
Prepare a preparation method for above-mentioned high insulating planar impedance matching transformer, comprise the following steps:
One, double flute skeleton is adopted, separated by winding slot dividing plate between first wire casing and the second wire casing, in the first wire casing that primary coil and secondary coil are wound on double flute skeleton respectively and the second wire casing, primary coil is connected with coil pin respectively with the termination of secondary coil, and primary coil is identical with the winding number of turn of secondary coil;
Two, can the insulating tape of resistance to 180 DEG C of high temperature in the outer cladding of primary coil and secondary coil;
Three, the magnetic core of " E " font is inserted from the central through hole of double flute skeleton is staggered;
Four, transformer whole is inserted in insulation crust, only coil pin is drawn;
Five, the sealing of embedding modified epoxy material in insulation crust, and dry in the shade;
High insulating planar impedance matching transformer is obtained by above-mentioned steps.
The material of primary coil and secondary coil is can the enamelled wire of resistance to 180 DEG C of high temperature.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the perspective view of common transformer.
Fig. 2 is the perspective view of double flute skeleton in the utility model.
Fig. 3 is the perspective view of the utility model winding enamel wire coil.
Fig. 4 is the structural representation of the utility model magnetic core.
Fig. 5 is the perspective view after the utility model coated insulation adhesive tape.
Fig. 6 is the perspective view that transformer of the present utility model loads insulation crust.
Fig. 7 is the perspective view of perfusion sealing in the utility model insulation crust.
In figure: double flute skeleton 1, enamel wire coil 2, winding slot dividing plate 3, coil pin 4, insulating tape 5, insulation crust 6, sealing 7, magnetic core 8, base 9, the first wire casing 10, second wire casing 11.
Embodiment
Embodiment 1:
As in Fig. 1 ~ 7, a kind of high insulating planar impedance matching transformer, comprise base 9, base 9 is provided with winding skeleton, winding skeleton is wound with primary coil and secondary coil, primary coil is connected with the coil pin 4 being fixed on base 9 two ends with the termination of secondary coil, and described winding skeleton is double flute skeleton 1, in the first wire casing 10 that primary coil and secondary coil are wound on double flute skeleton 1 respectively and the second wire casing 11, separated by winding slot dividing plate 3 between the first wire casing 10 and the second wire casing 11;
Preferably, described winding slot dividing plate 3 material is thermosetting phenolic resin.
Preferred further, whole double flute skeleton 1 material is thermosetting phenolic resin.
Have employed the double flute skeleton of phenolic resins material in this example, effectively improve the dielectric strength of double flute skeleton and be subject to force intensity, and by the winding slot dividing plate that double flute designs, effectively increasing the insulation distance between primary and secondary two coil windings.
Double flute skeleton 1 center is provided with through hole, and multi-piece core 8 is staggered installation of in through hole.Magnetic core 8 in this example is multi-sheet structure, and as shown in Figure 4, the magnetic chip of monolithic is " E " font, and the open side of " E " font magnetic chip is inserted in through hole from the two ends of double flute skeleton 1 central through hole are staggered, and exposes from the other end, as shown in Figure 5.The material of magnetic core 8 is Mn-Zn soft magnetic ferrite, and parameter is EL08 ∮ 8 × 11 0.15T Ni80%.
Preferably, described primary coil and the material of secondary coil are can the enamelled wire of resistance to 180 DEG C of high temperature.
Preferably, the external sheath of primary coil and secondary coil has the KT insulating tape 5 of heatproof 180 DEG C.
Preferably, the height of described winding slot dividing plate 3 is higher than the height of the coil after coated insulation adhesive tape 5.
Preferably, outside base 9, double flute skeleton 1 and magnetic core 8, be also provided with insulation crust 6, in insulation crust 6, be filled with sealing 7.Described sealing 7 is modified epoxy.Modified epoxy in this example adopts the mode of A agent and B agent, and wherein A agent component is (weight portion): low halogen epoxy resin [C
11h
12o
2] N 50-55 part; Environment-friendly type diluent C
7h
140
27-11 part; Environment protection additive H
2nC
3h
6s
2(OC
2h
6)
35-7 part; Environment-friendly type colorant C 4-6 part; Environment-protection filling agent SiO
222-28 part; B agent component is (weight portion): special defects curing agent C
12h
14n
760-65 part; Accelerant C nH
2n-1COOHn 15-20 part; Environment-friendly type diluent C
7h
140
215-25 part.
Primary coil is identical with the umber of turn of secondary coil.In this example, the number of turn is 500.
After tested, the performance index of the utility model product are as follows:
Primary direct current resistance (Ω) 115 ± 15%
Secondary direct resistance (Ω) 115 ± 15%
Primary electrical sensibility reciprocal (H) MIN 3.8H
Primary leakage inductance amount (mH) TYP 6
600:412 is compared in impedance matching
Insertion loss 2KHZ 2.0dBmax
Reflection loss 200HZ-4KHZ 24dBmin
Frequency response 200HZ-4KHZ ± 0.25dB
Dielectric strength (after Reflow after Reflow Soldering paster processing procedure) 4.0KVAC for 1min
Embodiment 2:
As in Fig. 1 ~ 7, a kind of preparation method preparing high insulating planar impedance matching transformer described in embodiment 1, comprises the following steps:
One, double flute skeleton 1 is adopted, separated by winding slot dividing plate 3 between first wire casing 10 and the second wire casing 11, in the first wire casing 10 that primary coil and secondary coil are wound on double flute skeleton 1 respectively and the second wire casing 11, primary coil is connected with coil pin 4 respectively with the termination of secondary coil, primary coil is identical with the winding number of turn of secondary coil, preferably, the material of primary coil and secondary coil is can the enamelled wire of resistance to 180 DEG C of high temperature.As shown in Fig. 2,3.
Two, can the insulating tape 5 of resistance to 180 DEG C of high temperature in the outer cladding of primary coil and secondary coil; As shown in Figure 5.
Three, the magnetic core 8 of " E " font is inserted from the central through hole of double flute skeleton 1 is staggered; As shown in Fig. 4,5.
Four, transformer whole is inserted in insulation crust 6, only coil pin 4 is drawn; As shown in Figure 6.
Five, the sealing 7 of embedding modified epoxy material in insulation crust 6, and dry in the shade; As shown in Figure 7.
High insulating planar impedance matching transformer is obtained by above-mentioned steps.
The above embodiments are only optimal technical scheme of the present utility model; and should not be considered as restriction of the present utility model; the technical scheme that protection range of the present utility model should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection range.Namely the equivalent replacement within the scope of this improves, also within protection range of the present utility model.
Claims (8)
1. one kind high insulating planar impedance matching transformer, comprise base (9), base (9) is provided with winding skeleton, winding skeleton is wound with primary coil and secondary coil, primary coil is connected with the coil pin (4) being fixed on base (9) two ends with the termination of secondary coil, it is characterized in that: described winding skeleton is double flute skeleton (1), in the first wire casing (10) that primary coil and secondary coil are wound on double flute skeleton (1) respectively and the second wire casing (11), separated by winding slot dividing plate (3) between first wire casing (10) and the second wire casing (11),
Double flute skeleton (1) center is provided with through hole, and multi-piece core (8) is staggered installation of in through hole.
2. the high insulating planar impedance matching transformer of one according to claim 1, is characterized in that: described winding slot dividing plate (3) material is thermosetting phenolic resin.
3. the high insulating planar impedance matching transformer of one according to claim 1, is characterized in that: the external sheath of primary coil and secondary coil has the insulating tape (5) of heatproof 180 DEG C.
4. the high insulating planar impedance matching transformer of one according to claim 3, is characterized in that: the height of described winding slot dividing plate (3) is higher than the height of the coil after coated insulation adhesive tape (5).
5. the high insulating planar impedance matching transformer of one according to claim 1, is characterized in that: outside base (9), double flute skeleton (1) and magnetic core (8), be also provided with insulation crust (6), be filled with sealing (7) in insulation crust (6).
6. the high insulating planar impedance matching transformer of one according to claim 5, is characterized in that: described sealing (7) is modified epoxy.
7. the high insulating planar impedance matching transformer of one according to claim 1, is characterized in that: described primary coil and the material of secondary coil are can the enamelled wire of resistance to 180 DEG C of high temperature.
8. the high insulating planar impedance matching transformer of one according to claim 1, is characterized in that: primary coil is identical with the umber of turn of secondary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420511553.9U CN204029581U (en) | 2014-09-05 | 2014-09-05 | High insulating planar impedance matching transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420511553.9U CN204029581U (en) | 2014-09-05 | 2014-09-05 | High insulating planar impedance matching transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029581U true CN204029581U (en) | 2014-12-17 |
Family
ID=52069416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420511553.9U Expired - Fee Related CN204029581U (en) | 2014-09-05 | 2014-09-05 | High insulating planar impedance matching transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157428A (en) * | 2014-09-05 | 2014-11-19 | 亚元科技（宜昌）电子有限公司 | High-insulation plane impedance-matching transformer and preparation method |
-
2014
- 2014-09-05 CN CN201420511553.9U patent/CN204029581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157428A (en) * | 2014-09-05 | 2014-11-19 | 亚元科技（宜昌）电子有限公司 | High-insulation plane impedance-matching transformer and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20180905 |