CN117219422A - Radio frequency transformer - Google Patents
Radio frequency transformer Download PDFInfo
- Publication number
- CN117219422A CN117219422A CN202311412627.3A CN202311412627A CN117219422A CN 117219422 A CN117219422 A CN 117219422A CN 202311412627 A CN202311412627 A CN 202311412627A CN 117219422 A CN117219422 A CN 117219422A
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- Prior art keywords
- magnetic core
- input
- output
- lead
- pin piece
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000741 silica gel Substances 0.000 claims abstract description 17
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 17
- 229910052709 silver Inorganic materials 0.000 claims abstract description 14
- 239000004332 silver Substances 0.000 claims abstract description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004593 Epoxy Substances 0.000 claims description 27
- 239000004020 conductor Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000009466 transformation Effects 0.000 description 11
- 230000002500 effect on skin Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 229910000597 tin-copper alloy Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- 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
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
- H01F27/2823—Wires
-
- 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
-
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/341—Preventing or reducing no-load losses or reactive currents
Abstract
The invention discloses a radio frequency transformer, which relates to the technical field of transformers and comprises a whole magnetic core, an input wire and an output wire; the magnetic core is provided with two through holes along the length direction; the two through holes are internally provided with threading pipes, and the two ends of the two threading pipes extend out of the magnetic cores and are respectively connected with an input pin piece and an output pin piece; the input lead and the output lead are wound on the two threading pipes, two ends of the output lead are respectively connected to the two input pin pieces, and two ends of the input lead extend out of the threading pipes; the input pin piece and the output pin piece are respectively provided with two pins along the vertical direction, the output pin piece is also provided with an extension part, and the extension parts are arranged along the length direction of the magnetic core; the surface of the magnetic core is coated with a heat dissipation silica gel layer; the input lead and the output lead have the same structure and comprise an insulating sleeve and two or more copper wires, the copper wires are externally plated with silver layers, and the insulating sleeve covers all the copper wires. The invention can reduce magnetic leakage and improve the conversion efficiency of the radio frequency transformer.
Description
The invention relates to a division application of a radio frequency transformer, a wire and an application method thereof, wherein the application number of the mother application is 201910996828.X, and the application date is 2019.10.19.
Technical Field
The invention relates to the technical field of transformers, in particular to a radio frequency transformer.
Background
A transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformers), and the like.
Currently, an iron core in a radio frequency transformer in the market is generally formed by laminating painted silicon steel sheets, and two coils are respectively wound on two sides of the iron core. The prior art solutions described above have the following drawbacks: the magnetic core formed by overlapping the silicon steel sheets has gaps, and magnetic induction lines are unevenly distributed, so that the possibility of magnetic leakage is easily generated, and the conversion efficiency of the radio frequency transformer is affected.
Disclosure of Invention
The invention provides a radio frequency transformer which has the effects of reducing magnetic leakage and improving the conversion efficiency of the radio frequency transformer.
In order to solve the technical problems, the embodiment of the invention provides the following technical scheme:
a radio frequency transformer comprises a monolithic magnetic core, an input wire and an output wire;
the magnetic core is provided with two through holes along the length direction, and the two through holes are symmetrical relative to the central line of the magnetic core along the length direction; a threading pipe is arranged in each of the two through holes, and two ends of each threading pipe extend out of the magnetic cores and are respectively connected with an input pin piece and an output pin piece;
the input lead and the output lead are wound on two threading pipes, two ends of the output lead are respectively connected to two input pin pieces, and two ends of the input lead extend out of the threading pipes;
the input pin piece and the output pin piece are respectively provided with two pins along the vertical direction, the output pin piece is also provided with an extension part, and the extension parts are arranged along the length direction of the magnetic core;
a heat dissipation silica gel layer is coated on the surface of the magnetic core;
the structure of the input lead and the structure of the output lead are consistent, the input lead and the output lead both comprise an insulating sleeve and two or more copper wires, a silver layer is plated outside the copper wires, and the insulating sleeve covers all the copper wires.
Through above-mentioned technical scheme, because input wire and output wire are around establishing simultaneously on two threading pipes, therefore when the input wire circular telegram, the most dense point of magnetic field that the input wire produced promptly is between two threading pipes, and the induced current loss that the output wire produced can be reduced to the minimum this moment to because the magnetic core is a monoblock, does not have the gap, compare in ordinary concatenation type magnetic core, can significantly reduce the possibility of magnetic leakage, thereby improve radio frequency transformer's conversion efficiency.
Through the technical scheme, an operator can quickly and conveniently plug the radio frequency transformer on the circuit board through the pins, so that the installation difficulty is reduced; the extension part can be used as an output end, so that the resistance of the output end is reduced, and the safe, stable and efficient output current of the radio-frequency transformer is facilitated.
The loss of the radio frequency transformer in the working process often appears on the heating of the magnetic core, and at the moment, the heat dissipation capacity of the surface of the magnetic core can be improved through the heat dissipation silica gel layer, so that the possibility that the heat energy accumulation on the magnetic core causes heating and the stable working of the magnetic core is reduced.
According to the technical scheme, when alternating-current high-voltage electricity is introduced into the lead, electrons are concentrated to the outer edge of the copper wire due to skin effect, at the moment, part of the electrons move into the silver layer, and the conductivity of silver is better than that of copper, so that the conductivity of the copper wire can be improved, and the current loss caused by skin effect is reduced by the arrangement; and the lead contains stranded copper wires, and electrons can be split, so that more electrons move from the silver layer, the loss is reduced, and the transformation efficiency is improved.
Optionally, two input pins are located at the left end of the magnetic core and have a gap of 4mm therebetween, and two output pins are located at the right end of the magnetic core and have a gap of 4mm therebetween.
Optionally, when the input wire and the output wire are wound on the two threading pipes, the input wire is wound in one turn, and the output wire is wound in five turns.
Optionally, epoxy plates are respectively arranged on two sides of the magnetic core along the length direction, the epoxy plates are clamped between the input pin piece and the magnetic core or between the output pin piece and the magnetic core, and two ends of the threading pipe are respectively welded on the input pin piece and the output pin piece;
and a rubber sheet is also arranged between the epoxy plate and the magnetic core.
Through the technical scheme, the two ends of the threading pipe are welded on the input pin piece and the output pin piece, so that the connection tightness between the threading pipe and the input pin piece and between the threading pipe and the output pin piece can be improved, and the current stability on the radio frequency transformer is ensured; because the input foot piece and the output foot piece can produce local stress to the magnetic core during welding, the setting of epoxy board can play a cushioning effect, reduces the local pressure of input foot piece and output foot piece to the magnetic core to the epoxy board can be fine to each input foot piece and output foot piece play insulating effect, guarantees radio frequency transformer's job stabilization nature.
The rubber sheet is tightly pressed between the epoxy plate and the magnetic core, and the rubber sheet has certain elasticity, so that a buffer effect can be further achieved between the epoxy plate and the magnetic core, the end part of the magnetic core is guaranteed to be uniformly stressed, the shock resistance of the magnetic core is improved, and the possibility of looseness between the magnetic core and the epoxy plate is reduced.
Optionally, a plurality of flexible belts are arranged on the periphery of one epoxy plate, a clamping hook is arranged on each flexible belt, and a clamping groove is arranged on the other epoxy plate; the flexible band is made of soft plastic;
when the clamping hooks are clamped in the clamping grooves, the flexible belt is abutted against the heat dissipation silica gel layer.
Through the technical scheme, an operator can clamp the clamping hooks on the flexible belt in the clamping grooves, and at the moment, the flexible belt can tighten the two epoxy plates on one hand, so that the possibility that the two epoxy plates are separated from the magnetic core is reduced; on the other hand, the flexible belt is inconsistent with the heat dissipation silica gel layer, the heat dissipation silica gel layer can be abutted against the surface of the magnetic core, the possibility that the heat dissipation silica gel layer falls off from the magnetic core is reduced, the connection area between the heat dissipation silica gel layer and the magnetic core can be ensured, and therefore the heat dissipation capacity of the magnetic core is ensured.
Optionally, the copper wire is provided with 19 strands, and the diameter of the copper wire is set to be 0.19mm; the silver layer is 0.01mm.
Through the technical scheme, the copper wire is provided with 19 strands, the diameter of the copper wire is 0.19mm, the current loss caused by skin effect can be greatly reduced, and the transformation efficiency is improved.
In summary, the invention has the following beneficial effects:
1. compared with an ordinary spliced magnetic core, the magnetic core has the advantages that the possibility of magnetic leakage can be greatly reduced, and therefore the conversion efficiency of the transformer is improved;
2. the copper wire with silver plating is used as a lead, so that the current loss caused by skin effect can be reduced, and the transformation efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic overall structure of embodiment 1;
FIG. 2 is a schematic diagram of the structure of embodiment 1 for embodying an input pad;
fig. 3 is a schematic view of the structure of embodiment 1 for embodying the through hole;
fig. 4 is a schematic diagram of the internal structure of embodiment 1 for embodying the input wire and the output wire;
fig. 5 is a schematic overall structure of embodiment 2.
Reference numerals:
1-a magnetic core; 11-through holes; 12-a heat dissipation silica gel layer; 2-input leads; 3-an output wire; 4-threading pipe; 5-input pins; 6-outputting a foot piece; 61-extension; 7-pins; 8-epoxy board; 81-rubber sheets; 9-a flexible belt; 91-clamping hooks; 92-clamping grooves; 10-an insulating sleeve; 101-copper wire; 102-silver layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention will be further described in detail with reference to the drawings and detailed description below in order to make the objects, features and advantages of the invention more comprehensible.
Example 1: a radio frequency transformer, as shown in fig. 1 and 2, comprises a monolithic magnetic core 1, wherein the magnetic core 1 is made of Fair-Rite company in the United states, the magnetic core 1 is rectangular, two through holes 11 (as shown in fig. 3) penetrating through the magnetic core 1 are formed in one end of the magnetic core 1 along the length direction, the two through holes 11 are symmetrical with respect to the central line of the magnetic core 1 along the length direction, a threading pipe 4 is arranged in each of the two through holes 11, the threading pipe 4 is made of electrolytic copper, the threading pipe 4 is fixed in the through holes 11, and two ends of the threading pipe 4 extend out of the magnetic core 1. The both ends of threading pipe 4 have input foot piece 5 and output foot piece 6 through soldering tin welding respectively, and two input foot pieces 5 are located magnetic core 1 left end and have 4 mm's clearance each other, and two output foot pieces 6 are located magnetic core 1 right-hand member and have 4 mm's clearance each other, and input foot piece 5 and output foot piece 6 are also made by electrolytic copper, and input foot piece 5 and output foot piece 6 surface still plate tin copper alloy to improve the rigidity of input foot piece 5 and output foot piece 6, reduce input foot piece 5 and output foot piece 6 atress deformation's possibility. Specifically, through above-mentioned technical scheme, electrolytic copper's purity is high, consequently the conductivity is high, can reduce the heat loss of input foot piece and output foot piece to guarantee radio frequency transformer's transformation efficiency, tin copper alloy then can improve the rigidity of input foot piece and output foot piece, reduces input foot piece and output foot piece atress deformation's possibility.
As shown in fig. 2, the two threading pipes 4 are simultaneously wound with an input wire 2 and an output wire 3, wherein the input wire 2 is wound with one circle, two threading pipes 4 extend from two ends of the input wire 2, the output wire 3 is wound with five circles, and two ends of the output wire 3 are respectively welded on the two input pin pieces 5 through soldering tin. When the input lead 2 is electrified, the output pin piece 6 can convey the transformed current; because the most dense point of the magnetic field generated by the input lead 2 is between the two threading pipes 4, the induced current loss generated by the output lead 3 can be reduced to the minimum at the moment, and because the magnetic core 1 is a whole block without gaps, compared with the ordinary spliced magnetic core 1, the possibility of magnetic leakage can be greatly reduced, thereby improving the conversion efficiency of the transformer.
As shown in fig. 2 and 4, the input conductor 2 and the output conductor 3 are made of special materials, and comprise an insulating sleeve 10 and a plurality of strands of copper wires 101, in this embodiment, the copper wires 101 are 19 strands, the diameter of the cross section of each copper wire 101 is 0.19mm, the outer surface of each copper wire 101 is plated with a silver layer 102 of 0.01mm, and each strand of copper wires 101 are tightly bound together and are wrapped in the insulating sleeve 10. When alternating-current high-voltage electricity is introduced into the input lead 2 and the output lead 3, electrons are concentrated to the outer edge of the copper wire 101 due to skin effect, at the moment, part of the electrons move into the silver layer 102, and the conductivity of silver is better than that of copper, so that the conductivity of the copper wire 101 can be improved, and the current loss caused by skin effect is reduced by the arrangement; and the lead comprises a plurality of strands of copper wires 101, so that electrons can be split, more electrons can move from the silver layer 102, loss is reduced, and transformation efficiency is improved.
As shown in fig. 1 and fig. 2, the input pin piece 5 and the output pin piece 6 are respectively provided with two pins 7 along the vertical direction, so that an operator can plug the radio frequency transformer on the circuit board, the output pin piece 6 is also provided with an extension portion 61, the extension portion 61 is arranged along the length direction of the magnetic core 1, and after the operator plugs the radio frequency transformer on the circuit board through the pins 7, the extension portion 61 floats on the circuit board, so that the radio frequency transformer can be externally connected to a circuit as an output end, thereby reducing the resistance of the output end, and facilitating the safe, stable and efficient output current of the radio frequency transformer.
As shown in fig. 2, the two sides of the magnetic core 1 along the length direction are respectively provided with an epoxy plate 8, a rubber sheet 81 is further arranged between one of the epoxy plates 8 and the magnetic core 1, during installation, an operator firstly abuts against one end of the epoxy plate 8 and one end of the magnetic core 1, then the rubber sheet 81 is attached to the other end of the magnetic core 1, the other epoxy plate 8 is tightly pressed on the rubber sheet 81, then the input pin 5 and the output pin 6 are sleeved at two ends of the threading pipe 4, and finally the input pin 5 and the output pin 6 are welded on the threading pipe 4 through soldering tin. The rubber sheet 81 is tightly pressed between the epoxy plate 8 and the magnetic core 1, and the rubber sheet has certain elasticity, so that the rubber sheet can play a buffering role between the epoxy plate 8 and the magnetic core 1, thereby ensuring that the end part of the magnetic core 1 is stressed uniformly, improving the shock resistance of the magnetic core 1 and reducing the possibility of looseness between the magnetic core 1 and the input pin sheet 5 and the output pin sheet 6.
In summary, the radio frequency transformer of the embodiment has the following characteristics: 1. the special lead can reduce the current loss caused by skin effect and improve the transformation efficiency; 2. the adoption of the whole magnetic core 1 has no gap, compared with an ordinary spliced magnetic core, the possibility of magnetic leakage can be greatly reduced, and the conversion efficiency of the transformer is improved; 3. the input lead 2 and the output lead 3 are wound on the two threading pipes 4 at the same time, so when the input lead 2 is electrified, the most concentrated point of the magnetic field generated by the input lead 2 is between the two threading pipes 4, and the induced current loss generated by the output lead 3 can be reduced to the minimum at the moment, thereby improving the transformation efficiency.
The second object of the present invention is to provide a conductive wire, which has the effects of reducing loss and improving conductive efficiency. The third object of the present invention is to provide a method for applying the above-mentioned wire to a radio frequency transformer. Through the technical scheme, the current loss of the lead wire due to the skin effect can be greatly reduced when the radio frequency transformer works, so that the transformation efficiency of the radio frequency transformer is improved.
Example 2: a radio frequency transformer is different from embodiment 1 in that, as shown in fig. 5, a heat dissipation silica gel layer 12 is coated on the surface of the magnetic core 1 to improve the heat dissipation capability of the magnetic core 1 and ensure the working stability of the magnetic core 1. One of them is connected with a plurality of flexible bands 9 along the periphery on the epoxy board 8, flexible band 9 is made by soft plastics, flexible band 9 keeps away from the epoxy board 8 one end that links to each other with it and is equipped with pothook 91, then set up draw-in groove 92 on another epoxy board 8, the operator is with the back of heat dissipation silica gel layer 12 coating on magnetic core 1 surface, can outwards pull flexible band 9, then with the pothook 91 joint on the flexible band 9 in draw-in groove 92, the one side of flexible band 9 orientation magnetic core 1 now is contradicted on heat dissipation silica gel layer 12, thereby can support heat dissipation silica gel layer 12 tightly at magnetic core 1 surface, thereby reduce the possibility that heat dissipation silica gel layer 12 drops on magnetic core 1, also can guarantee the connection area between heat dissipation silica gel layer 12 and the magnetic core 1, thereby guarantee the heat dissipation capacity of magnetic core 1.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The radio frequency transformer is characterized by comprising a whole magnetic core, an input wire and an output wire;
the magnetic core is provided with two through holes along the length direction, and the two through holes are symmetrical relative to the central line of the magnetic core along the length direction; a threading pipe is arranged in each of the two through holes, and two ends of each threading pipe extend out of the magnetic cores and are respectively connected with an input pin piece and an output pin piece;
the input lead and the output lead are wound on two threading pipes, two ends of the output lead are respectively connected to two input pin pieces, and two ends of the input lead extend out of the threading pipes;
the input pin piece and the output pin piece are respectively provided with two pins along the vertical direction, the output pin piece is also provided with an extension part, and the extension parts are arranged along the length direction of the magnetic core;
a heat dissipation silica gel layer is coated on the surface of the magnetic core;
the structure of the input lead and the structure of the output lead are consistent, the input lead and the output lead both comprise an insulating sleeve and two or more copper wires, a silver layer is plated outside the copper wires, and the insulating sleeve covers all the copper wires.
2. The radio frequency transformer of claim 1, wherein two of the input legs are positioned at the left end of the core with a 4mm gap therebetween and two of the output legs are positioned at the right end of the core with a 4mm gap therebetween.
3. The radio frequency transformer of claim 1, wherein when the input and output conductors are each wound on two of the feed-through tubes, the input conductor is wound one turn and the output conductor is wound five turns.
4. The radio frequency transformer according to claim 1, wherein both sides of the magnetic core in the length direction are provided with epoxy plates, the epoxy plates are clamped between the input pin piece and the magnetic core or between the output pin piece and the magnetic core, and both ends of the threading pipe are welded on the input pin piece and the output pin piece respectively;
and a rubber sheet is also arranged between the epoxy plate and the magnetic core.
5. The radio frequency transformer according to claim 4, wherein one of the epoxy boards is provided with a plurality of flexible belts along the periphery, the flexible belts are provided with hooks, and the other epoxy board is provided with a clamping groove; the flexible band is made of soft plastic;
when the clamping hooks are clamped in the clamping grooves, the flexible belt is abutted against the heat dissipation silica gel layer.
6. The radio frequency transformer according to claim 1, wherein the copper wire is provided with 19 strands, the diameter of the copper wire being set to 0.19mm; the silver layer is 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311412627.3A CN117219422A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996828.XA CN110718371A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer, lead and application method thereof |
| CN202311412627.3A CN117219422A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996828.XA Division CN110718371A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer, lead and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117219422A true CN117219422A (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996828.XA Pending CN110718371A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer, lead and application method thereof |
| CN202311412627.3A Pending CN117219422A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910996828.XA Pending CN110718371A (en) | 2019-10-19 | 2019-10-19 | Radio frequency transformer, lead and application method thereof |
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| WO2022246827A1 (en) * | 2021-05-28 | 2022-12-01 | 东莞顺络电子有限公司 | Inductor and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2370533Y (en) * | 1999-03-17 | 2000-03-22 | 邓超 | Signal connection group line of displayer |
| US7612641B2 (en) * | 2004-09-21 | 2009-11-03 | Pulse Engineering, Inc. | Simplified surface-mount devices and methods |
| CN103457010A (en) * | 2013-10-08 | 2013-12-18 | 东莞铭普光磁股份有限公司 | Integral patch type packing structure applied to radio frequency magnetic device |
| CN204029568U (en) * | 2014-06-30 | 2014-12-17 | 深圳振华富电子有限公司 | Radio freqnency transformer |
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2019
- 2019-10-19 CN CN201910996828.XA patent/CN110718371A/en active Pending
- 2019-10-19 CN CN202311412627.3A patent/CN117219422A/en active Pending
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