CN210575423U - Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer - Google Patents
Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer Download PDFInfo
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- CN210575423U CN210575423U CN201922081550.1U CN201922081550U CN210575423U CN 210575423 U CN210575423 U CN 210575423U CN 201922081550 U CN201922081550 U CN 201922081550U CN 210575423 U CN210575423 U CN 210575423U
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Abstract
The utility model relates to an energy-saving, environment-friendly and high-efficiency segmented isolated high-frequency transformer; the transformer comprises a magnetic core, a segmented framework, a primary winding, a secondary winding and a feedback winding; the segmented framework is integrally formed and manufactured by polytetrafluoroethylene materials; a notch is arranged on the strip heat dissipation rib; the primary winding is formed by tightly winding a plurality of strands of insulated wires on a primary winding groove between two annular insulated retaining walls of the segmented framework, the secondary winding is formed by taking a plurality of copper sheets as the winding, and the feedback winding is formed by winding a wire sleeved with a Teflon tube. The utility model discloses small, the loss is low, the noise is little, power is big, current distribution is even.
Description
Technical Field
The utility model relates to an electronic transformer technique, concretely relates to energy-concerving and environment-protective high-efficient segmentation isolated high frequency transformer.
Background
The existing high-frequency transformer consists of a coil, a framework and a magnetic core, wherein the coil part of the transformer is formed by sequentially winding a primary coil, a secondary coil and a feedback winding, wherein the primary winding and the feedback winding are on the same side, and the windings are isolated by using adhesive tapes. In 2019, 03 and 19, chinese utility model discloses an authorization notice number CN208622563U discloses a good high frequency transformer dispels heat, including magnetic core, primary coil, secondary thin copper sheet and ceramic substrate, inside primary coil, secondary thin copper sheet and the ceramic substrate of wrapping up of magnetic core, part zonulae occludens between magnetic core, primary coil, secondary thin copper sheet and the ceramic substrate, both ends are provided with primary coil about the magnetic core is inside, the interval of primary coil both sides is provided with secondary thin copper sheet and ceramic substrate. Although the high-frequency transformer can conduct heat generated by the secondary copper sheet to the ceramic substrate, the high-frequency transformer is effectively connected with a radiator, and the technical problem of high temperature rise is solved. However, the transformer manufactured in this way has the problem that the feedback winding generates noise when vibrating at high frequency, and the environment is polluted.
SUMMERY OF THE UTILITY MODEL
Technical problem to prior art exists, the utility model provides a high-efficient segmentation isolated high frequency transformer of energy-concerving and environment-protective can reach small, the loss is low, the noise is little, power is big, the even effect of current distribution.
In order to solve the above problem, the utility model discloses take following technical scheme to carry out:
an energy-saving, environment-friendly and efficient segmented isolation type high-frequency transformer comprises a magnetic core, a segmented framework, a primary winding, a secondary winding and a feedback winding; the segmented framework is integrally formed and manufactured by polytetrafluoroethylene materials; the main structure of the magnetic core is a hollow cylinder matched with the center post of the magnetic core; two annular insulating retaining walls are respectively arranged on the outer surface of the bottom end part and the outer surface of the middle part of the hollow cylindrical barrel to separate the outer surface of the hollow cylindrical barrel into two sections, wherein the section between the two annular insulating retaining walls forms a primary winding groove; the other side hollow cylindrical section of the annular insulating retaining wall at the middle part is provided with a part of sections, a plurality of radiating ribs with the same length are uniformly and axially symmetrically distributed along the outer circumference of the hollow cylindrical section, rib lands of the radiating ribs with the same length are jointly combined into a feedback winding area, and the end part section of the hollow cylindrical section without the radiating ribs is a secondary winding area; among the multiple heat dissipation ribs with the same length, the rib ridge surface of one heat dissipation rib is higher than the rib ridge surfaces of other heat dissipation ribs, and a notch is formed in the heat dissipation rib; an outlet wire groove is formed in the annular insulating retaining wall at the bottom end part of the outer surface of the hollow cylindrical barrel;
the primary winding is tightly wound on a primary winding groove between two annular insulating retaining walls of the segmented framework by adopting a plurality of strands of insulating wires, and a lead is led out through a lead-out wire groove of the segmented framework after winding is finished;
the secondary winding adopts a plurality of copper sheets as the winding and is arranged in a secondary winding area of the end section of the hollow cylinder without the heat dissipation ribs in the segmented framework; a ceramic substrate is arranged between the copper sheets; insulating the copper sheet close to the magnetic core side in the secondary winding area by using a high-temperature adhesive tape;
the secondary copper sheet is a copper sheet in an omega shape, the thickness of the copper sheet is 0.5-1.5mm,
the inner diameter of the annular part of the copper sheet is matched with the outer diameter of the hollow cylinder of the segmented framework, and the lower gap part of the annular part of the copper sheet is designed into two pins; the ceramic substrate is a rectangular sheet with the thickness of 0.1-0.5mm, a round hole with the diameter equal to the inner diameter of the circular ring-shaped part of the copper sheet is formed in the middle of the ceramic substrate, the width direction of the ceramic substrate is equal to the outer diameter of the circular ring-shaped part of the copper sheet, and the length direction of the ceramic substrate is larger than the outer diameter of the circular ring-shaped part of the copper sheet;
the feedback winding is wound by a lead sheathed with a Teflon tube, and the lead sheathed with the Teflon tube is clamped and fixed on a gap of a heat dissipation rib in the segmented framework; the center pillar of the magnetic core is inserted into the hollow cylindrical barrel in the segmented framework, and the center pillar of the magnetic core is filled with 100% of soft rubber; meanwhile, the air gap part of the magnetic core is filled with soft glue.
The beneficial effects of the utility model reside in that:
the method has the advantages that the segmented framework is made of polytetrafluoroethylene, and the polytetrafluoroethylene has the advantages of extremely low friction coefficient, high temperature resistance, organic solvent corrosion resistance, convenient molding, convenient batch production and suitability for manufacturing the framework of the high-frequency transformer;
②, the sectional framework of the utility model adopts sectional and regional design, simplifies winding difficulty, is convenient for assembly, has good insulation effect between the primary and secondary, has good anti-discharge effect, reduces distributed capacitance and improves transformer performance;
the utility model discloses it has two effects to lay many length unanimous heat dissipation muscle evenly and axial symmetry along the hollow cylinder outward appearance circumference in the design of feedback winding district, one is utilize the protruding height support aerial feedback winding of heat dissipation muscle, prevent that the feedback winding from hugging closely the magnetic core of high frequency transformer, transmit the high frequency vibration energy of feedback winding to the magnetic core of high frequency transformer, the second utilizes the distance of heat dissipation muscle length direction to keep apart primary winding and adopts copper thin slice secondary winding, be favorable to the heat of copper thin slice secondary winding to discharge through the clearance space of heat dissipation muscle, make copper thin slice secondary winding can bear bigger peak current;
④ the utility model is designed to have a notch on one of the rib ridge surfaces higher than other heat dissipation ribs, so that the feedback winding can be clamped and fixed conveniently, the stability of the feedback winding is greatly improved, and the noise pollution caused by the feedback winding in high-frequency vibration can be overcome;
the rectangular ceramic substrate is arranged between the secondary winding copper sheets, so that heat generated by the secondary winding copper sheets can be conveniently transmitted to the ceramic substrate, and the ceramic substrate is rectangular in design, so that air-cooled aluminum alloy fins can be effectively and conveniently connected.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic partial sectional view of the present invention.
Fig. 2 is an electrical schematic of fig. 1.
Fig. 3 is a schematic view of the segmented framework of the present invention.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a schematic top view of fig. 3.
Fig. 6 is a schematic structural view of the secondary copper foil of the present invention.
Fig. 7 is a schematic structural diagram of the ceramic substrate of the present invention.
The reference numbers are as follows:
1 a magnetic core; 2, segmenting the framework; 3 a primary winding; 4 a secondary winding; 5 a feedback winding; 6, a hollow cylindrical barrel; 7, an annular insulating retaining wall; 8 primary winding grooves; 9 heat dissipation ribs; 10 feeding back a winding area; 11 a secondary winding area; 12, a notch; 13 leading-out wire grooves; 14 lead wires; 15 copper flakes; 16 a ceramic substrate; 17 pins; 18 circular holes; 19 PCB.
Detailed Description
The technical solution of the present invention is further described below, and the structure disclosed in the accompanying drawings is an embodiment of the present invention, and this embodiment is one of the examples of the present invention, but the claimed scope is not limited to this example.
The embodiment is a PQ34/26 energy-saving, environment-friendly and efficient segmented isolated high-frequency transformer, which comprises a magnetic core (1), a segmented framework (2), a primary winding (3), a secondary winding (4) and a feedback winding (5); the segmented framework (2) is integrally formed and manufactured by polytetrafluoroethylene materials; the main structure of the magnetic core is a hollow cylinder (6) matched and divided with the center post of the magnetic core (1); two annular insulating retaining walls (7) are respectively arranged on the outer surface of the bottom end part and the outer surface of the middle part of the hollow cylindrical tube to separate the outer surface of the hollow cylindrical tube (6) into two sections, wherein a primary winding groove (8) is formed in the section between the two annular insulating retaining walls (7); a plurality of heat dissipation ribs (9) with the same length are uniformly and axially symmetrically arranged on the other side of the hollow cylindrical section of the annular insulating retaining wall (7) at the middle part along the outer circumference of the hollow cylindrical tube (6), rib lands of the heat dissipation ribs (9) with the same length are jointly combined into a feedback winding area (10), and the end part section of the hollow cylindrical tube without the heat dissipation ribs is a secondary winding area (11); among the plurality of heat dissipation ribs (9) with the same length, the rib ridge surface of one heat dissipation rib (9) is higher than the rib ridge surfaces of other heat dissipation ribs (9), and a notch (12) is arranged on the heat dissipation rib (9); an outlet wire groove (13) is formed in the annular insulating retaining wall (7) at the bottom end part of the outer surface of the hollow cylindrical barrel (6);
the primary winding (3) is tightly wound on a primary winding groove (8) between two annular insulating retaining walls (7) of the segmented framework (2) by adopting a plurality of strands of insulated wires, and a lead (14) after winding is led out through a lead-out wire groove (13) of the segmented framework (2);
the secondary winding (4) adopts a plurality of copper sheets (15) as windings and is arranged in a secondary winding area (11) of the end section of the hollow cylinder (6) without the heat dissipation ribs (9) in the segmented framework (2); a ceramic substrate (16) is arranged between the copper sheets; the copper sheet (15) on the side of the secondary winding area (11) close to the magnetic core is insulated by a high-temperature adhesive tape;
the copper sheet (15) is a copper sheet in an omega shape, the thickness of the copper sheet (15) is 0.5-1.5mm, the inner diameter of the circular ring part of the copper sheet (15) is matched with the outer diameter of the hollow cylinder (6) of the segmented framework, and the position of the circular lower notch (12) of the copper sheet (15) is designed into two pins (17); the ceramic substrate (16) is a rectangular sheet with the thickness of 0.1-0.5mm, a round hole (18) with the diameter equal to the inner diameter of the circular ring-shaped part of the copper sheet (15) is formed in the middle of the ceramic substrate (16), the width direction of the ceramic substrate (16) is equal to the outer diameter of the circular ring-shaped part of the copper sheet (15), and the length direction of the ceramic substrate (16) is larger than the outer diameter of the circular ring-shaped part of the copper sheet (15);
the feedback winding (5) is wound by adopting a lead sheathed with a Teflon pipe, and the lead sheathed with the Teflon pipe is clamped and fixed on the gap (12) of the heat dissipation rib (9) in the segmented framework (2); the center post of the magnetic core (1) is inserted into the hollow cylindrical barrel (6) in the segmented framework (2), and the center post of the magnetic core (1) is filled with 100% of soft rubber; meanwhile, the air gap part of the magnetic core (1) is filled with soft glue.
Furthermore, the pin (17) of the feedback winding (5) and the pin (17) of the copper sheet (15) of the secondary winding (4) are both arranged on a PCB (19) and fixed.
Furthermore, the outer surface of the magnetic core (1) is wrapped by copper foil.
Furthermore, the part of the ceramic substrate (16) where the secondary copper sheets (15) are exposed in the length direction is connected with an air-cooled aluminum alloy fin.
Further, the thickness of the two annular insulating retaining walls (7) is 1-2 mm.
Furthermore, the Teflon tube is a special tube prepared by extruding and sintering a polytetrafluoroethylene material, and then carrying out the working procedures of drying, high-temperature sintering, shaping and the like; teflon is also known as Teflon, polytetrafluoroethylene, and plastic king.
The output part of the embodiment is wound by a plurality of strands of insulated wires and led out from the segmented framework (2) to the power panel. Meanwhile, the air gap part of the magnetic core is filled with soft rubber, and black rubber is added to fix the magnetic core and each winding. Thereby achieving the technical effects of small volume, high current density, low loss, low noise, large power and uniform current distribution. In the embodiment, the copper foil is added on the outer surface of the magnetic core to play a role in resisting interference.
The environment-friendly high-efficiency segmented isolation type high-frequency transformer can be widely applied to the fields of new energy such as 5G communication, cloud computing, energy-saving household appliances and charging piles.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (5)
1. An energy-saving, environment-friendly and efficient segmented isolation type high-frequency transformer comprises a magnetic core (1), a segmented framework (2), a primary winding (3), a secondary winding (4) and a feedback winding (5); the method is characterized in that: the segmented framework (2) is integrally formed and manufactured by polytetrafluoroethylene materials; the main structure of the magnetic core is a hollow cylinder (6) matched and divided with the center post of the magnetic core (1); two annular insulating retaining walls (7) are respectively arranged on the outer surface of the bottom end part and the outer surface of the middle part of the hollow cylindrical tube to separate the outer surface of the hollow cylindrical tube (6) into two sections, wherein a primary winding groove (8) is formed in the section between the two annular insulating retaining walls (7); a plurality of heat dissipation ribs (9) with the same length are uniformly and axially symmetrically arranged on the other side of the hollow cylindrical section of the annular insulating retaining wall (7) at the middle part along the outer circumference of the hollow cylindrical tube (6), rib lands of the heat dissipation ribs (9) with the same length are jointly combined into a feedback winding area (10), and the end part section of the hollow cylindrical tube without the heat dissipation ribs is a secondary winding area (11); among the plurality of heat dissipation ribs (9) with the same length, the rib ridge surface of one heat dissipation rib (9) is higher than the rib ridge surfaces of other heat dissipation ribs (9), and a notch (12) is arranged on the heat dissipation rib (9); an outlet wire groove (13) is formed in the annular insulating retaining wall (7) at the bottom end part of the outer surface of the hollow cylindrical barrel (6);
the primary winding (3) is tightly wound on a primary winding groove (8) between two annular insulating retaining walls (7) of the segmented framework (2) by adopting a plurality of strands of insulated wires, and a lead (14) after winding is led out through a lead-out wire groove (13) of the segmented framework (2);
the secondary winding (4) adopts a plurality of copper sheets (15) as windings and is arranged in a secondary winding area (11) of the end section of the hollow cylinder (6) without the heat dissipation ribs (9) in the segmented framework (2); a ceramic substrate (16) is arranged between the copper sheets; the copper sheet (15) on the side of the secondary winding area (11) close to the magnetic core is insulated by a high-temperature adhesive tape;
the copper sheet (15) is a copper sheet in an omega shape, the thickness of the copper sheet (15) is 0.5-1.5mm, the inner diameter of the circular ring part of the copper sheet (15) is matched with the outer diameter of the hollow cylinder (6) of the segmented framework, and the position of the circular lower notch (12) of the copper sheet (15) is designed into two pins (17); the ceramic substrate (16) is a rectangular sheet with the thickness of 0.1-0.5mm, a round hole (18) with the diameter equal to the inner diameter of the circular ring-shaped part of the copper sheet (15) is formed in the middle of the ceramic substrate (16), the width direction of the ceramic substrate (16) is equal to the outer diameter of the circular ring-shaped part of the copper sheet (15), and the length direction of the ceramic substrate (16) is larger than the outer diameter of the circular ring-shaped part of the copper sheet (15);
the feedback winding (5) is wound by adopting a lead sheathed with a Teflon pipe, and the lead sheathed with the Teflon pipe is clamped and fixed on the gap (12) of the heat dissipation rib (9) in the segmented framework (2); the center post of the magnetic core (1) is inserted into the hollow cylindrical barrel (6) in the segmented framework (2), and the center post of the magnetic core (1) is filled with 100% of soft rubber; meanwhile, the air gap part of the magnetic core (1) is filled with soft glue.
2. The energy-saving environment-friendly high-efficiency segmented isolation type high-frequency transformer as claimed in claim 1, further characterized in that: and the pin (17) of the feedback winding (5) and the pin (17) of the copper sheet (15) of the secondary winding (4) are both arranged on a PCB (19) and fixed.
3. The energy-saving environment-friendly high-efficiency segmented isolation type high-frequency transformer as claimed in claim 1, further characterized in that: and the outer surface of the magnetic core (1) is wrapped by copper foil.
4. The energy-saving environment-friendly high-efficiency segmented isolation type high-frequency transformer as claimed in claim 1, further characterized in that: the part of the ceramic substrate (16) where the secondary copper sheet (15) is exposed in the length direction is connected with an air-cooled aluminum alloy fin.
5. The energy-saving environment-friendly high-efficiency segmented isolation type high-frequency transformer as claimed in claim 1, further characterized in that: the thickness of the two annular insulating retaining walls (7) is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081550.1U CN210575423U (en) | 2019-11-27 | 2019-11-27 | Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081550.1U CN210575423U (en) | 2019-11-27 | 2019-11-27 | Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer |
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| Publication Number | Publication Date |
|---|---|
| CN210575423U true CN210575423U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922081550.1U Withdrawn - After Issue CN210575423U (en) | 2019-11-27 | 2019-11-27 | Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706893A (en) * | 2019-11-27 | 2020-01-17 | 郴州宇晖电子科技有限公司 | Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer |
| CN114496496A (en) * | 2022-02-23 | 2022-05-13 | 郴州宇晖电子科技有限公司 | Large power frameless transformer with small volume |
-
2019
- 2019-11-27 CN CN201922081550.1U patent/CN210575423U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706893A (en) * | 2019-11-27 | 2020-01-17 | 郴州宇晖电子科技有限公司 | Energy-saving environment-friendly efficient segmented isolation type high-frequency transformer |
| CN114496496A (en) * | 2022-02-23 | 2022-05-13 | 郴州宇晖电子科技有限公司 | Large power frameless transformer with small volume |
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Granted publication date: 20200519 Effective date of abandoning: 20210429 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20210429 |