CN218384782U - Transformer with reduced AC loss and improved reliability - Google Patents
Transformer with reduced AC loss and improved reliability Download PDFInfo
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- CN218384782U CN218384782U CN202220881137.2U CN202220881137U CN218384782U CN 218384782 U CN218384782 U CN 218384782U CN 202220881137 U CN202220881137 U CN 202220881137U CN 218384782 U CN218384782 U CN 218384782U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a transformer with reduce alternating current loss and improve reliability belongs to transformer technical field, use the integrated assembly of an insulating support skeleton and isolation mode with primary and secondary and resonance coil, primary winds with the series connection mode winding in insulating support skeleton wire casing, can effectively reduce the high alternating current loss that parallel mode winding primary brought, but secondary copper sheet disect insertion insulating support skeleton for it keeps apart to have fixed physical distance between primary and the secondary, it is not enough effectively to have solved original isolation. The fixed physical isolation distance of the plastic body also effectively prevents the high-voltage breakdown risk, the product consistency is good, the process flow is simplified, and the mass production is easy. The power density is increased, the product size is smaller, the energy utilization rate is fully improved, and social resources are protected.
Description
Technical Field
The utility model relates to a transformer especially relates to the transformer that has the reduction alternating current loss and improves the reliability, the utility model discloses still relate to a use method of transformer, in particular to have the transformer that reduces the alternating current loss and improve the reliability and use method belongs to transformer technical field.
Background
In the prior art, for example, CN201810792055.9 is an integrated transformer, a primary winding of the transformer 220 and a secondary winding of the transformer 210 generally use a stacked structure, the primary winding of the transformer 220 and the secondary winding of the transformer 210 are insulated and isolated by the 300 insulation film, the primary winding adopts a multi-winding parallel stacked manner, and the winding and the magnetic core are not physically isolated, as shown in fig. 1 and 2 in the drawings of the specification, the following problems exist in the prior art:
a. the physical isolation distance between the primary side and the secondary side of the transformer is insufficient, and the high-frequency alternating current loss is increased sharply under the influence of voltage induction and an alternating current magnetic field of the primary side and the secondary side;
b. the physical isolation distance between the primary side and the secondary side and between the coil and the magnetic core is not enough, so that the hidden danger of high-voltage breakdown exists;
c. parasitic parameters generated by the series winding cause higher high-frequency alternating current loss;
c. the structure is complex, the consistency of the product is poor, and the mass production is not easy to realize;
d. the high alternating current loss leads to larger product size to meet the characteristics, the power density is low, and social resource waste is generated;
therefore, a transformer with reduced AC loss and improved reliability and a method for using the same are designed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a transformer and application method with reduce alternating current loss and improve reliability, use the integrated assembly of an insulation support skeleton and isolation mode with primary side and vice limit and resonant coil, primary side coil twines in insulation support skeleton wire inslot with the series connection mode, can effectively reduce the high alternating current loss that the parallel connection mode winding primary side brought, but vice limit copper sheet disect insertion insulation support skeleton for it keeps apart to have fixed physical distance between primary side and the vice limit, it is not enough effectively to have solved original isolation. The fixed physical isolation distance of the plastic body also effectively prevents the high-voltage breakdown risk, the product consistency is good, the process flow is simplified, and the mass production is easy. The power density is also increased, the product size is smaller, the energy utilization rate is fully improved, social resources are protected, the primary coil is wound in an insulation support framework groove in a series connection mode, the relative position of the copper wire is fixed, the distribution parameters are uniform, the product consistency is improved, the secondary copper sheets do not need insulation treatment, the copper sheets are directly inserted into the insulation support framework to be physically insulated with the framework, the distribution parameters are uniform in the fixed relative position, and the product consistency is improved.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the transformer with the functions of reducing alternating current loss and improving reliability comprises a magnetic core frame body assembly, wherein a first insulation supporting framework group is arranged at the middle upper part in the magnetic core frame body assembly, a primary winding is wound on the insulation supporting framework group, secondary copper sheets are inserted into the magnetic core frame body assembly at equal intervals, a second insulation supporting framework group is arranged at the lower part in the magnetic core frame body assembly, a resonance coil is wound on the inner side of the second insulation supporting framework group, and the primary winding penetrates through the side edge of the second insulation supporting framework group from the winding of the first insulation supporting framework group and extends out.
Preferably, the magnetic core support body subassembly includes magnetic core, lower magnetic core, well magnetic core, end insert a section of thick bamboo, well insert a section of thick bamboo and insert a section of thick bamboo on, the mid-mounting of well magnetic core has well insert a section of thick bamboo, and the top and the bottom of well magnetic core install magnetic core and lower magnetic core respectively, the inner bottom middle part department of magnetic core is equipped with the end that runs through second insulation support skeleton group and inserts a section of thick bamboo down, the end middle part department of going up the magnetic core is equipped with the last section of thick bamboo that inserts that runs through first insulation support skeleton group, the middle part department of well magnetic core is equipped with the well section of thick bamboo that inserts that runs through first insulation support skeleton group below, and the top of inserting a section of thick bamboo is connected with the bottom of inserting a section of thick bamboo in and the bottom is connected.
Preferably, the first insulation support framework group comprises a first insulation support framework and a third insulation support framework, the first insulation support framework and the third insulation support framework are staggered and castellated, the primary winding is wound on the outer side of the first insulation support framework, and the secondary copper sheet is inserted into the inner side of the third insulation support framework.
Preferably, the second insulating supporting framework group comprises a second insulating supporting framework and isolating limiting strips, the second insulating supporting framework is provided with a plurality of groups, the outer side of the second insulating supporting framework is wound with a resonant coil, and the isolating limiting strips are installed at the top edge part of the second insulating supporting framework.
Preferably, the third insulating supporting framework and the first insulating supporting framework are both of an annular hollow structure, and one end of the annular structure extends outwards to form an E-shaped frame structure.
Preferably, the second insulating supporting framework is also of an annular hollow structure, and one end of the annular structure extends outwards to form an E-shaped frame structure.
Preferably, notches through which the primary winding can penetrate are formed in one side of each of the first insulating support framework and the second insulating support framework.
The use method of the transformer capable of reducing the alternating current loss and improving the reliability comprises the following steps:
carrying out staggered crenellation on the first insulating support framework and the third insulating support framework to form a crenellation structure;
sleeving the first insulating support framework and the third insulating support framework into the upper insertion cylinder, and attaching the third insulating support framework to two sides of the upper magnetic core;
winding the primary winding on the outer side of the first insulating support framework and penetrating through the notch, and inserting a secondary copper sheet into the third insulating support framework;
and arranging the crenellations of the second insulating supporting framework and winding the resonance coil.
The utility model has the advantages of:
the utility model provides a transformer and application method with reduce alternating current loss and improve reliability uses the integrated assembly of an insulating support skeleton and isolation mode with primary and secondary and resonance coil, and primary coil twines in insulating support skeleton wire inslot with the series connection mode, can effectively reduce the high alternating current loss that the winding primary of parallel connection mode brought, but secondary copper sheet disect insertion insulating support skeleton for there is fixed physical distance to keep apart between primary and the secondary, has effectively solved original isolation not enough. The fixed physical isolation distance of the plastic body also effectively prevents the high-voltage breakdown risk, the product consistency is good, the process flow is simplified, and the mass production is easy. The power density is increased, the size of the product is smaller, the energy utilization rate is fully improved, social resources are protected, the primary coil is wound in the insulating support framework groove in a series connection mode, the relative position of the copper wire is fixed, the distribution parameters are uniform, the product consistency is improved, the secondary copper sheet does not need insulation treatment, the copper sheet is directly inserted into the insulating support framework to be physically insulated by the framework, the distribution parameters are uniform when the relative position is fixed, and the product consistency is improved.
Drawings
FIG. 1 is an exploded view of a prior art three-dimensional structure;
FIG. 2 is a schematic perspective view of a prior art structure;
fig. 3 is a schematic diagram of a first perspective three-dimensional structure of a preferred embodiment of a transformer with reduced ac losses and improved reliability in accordance with the present invention;
fig. 4 is a schematic diagram of a second perspective view of a preferred embodiment of a transformer with reduced ac losses and improved reliability in accordance with the present invention;
fig. 5 is a table diagram of a preferred embodiment of a transformer with reduced ac losses and improved reliability in accordance with the present invention.
In the figure: 1-upper magnetic core, 2-first insulating support framework, 3-secondary copper sheet, 4-primary winding, 5-second insulating support framework, 6-resonance coil, 7-middle magnetic core, 8-lower magnetic core, 9-upper insertion barrel, 10-notch, 11-middle insertion barrel, 12-bottom insertion barrel, 13-isolation limiting strip and 14-third insulating support framework.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 3-4, the transformer with reduced ac loss and improved reliability provided by this embodiment includes a magnetic core frame assembly, a first insulating supporting frame set is disposed at an inner middle upper portion of the magnetic core frame assembly, a primary winding 4 is wound on the insulating supporting frame set, secondary copper sheets 3 are inserted into the magnetic core frame assembly at equal intervals, a second insulating supporting frame set is disposed at an inner lower portion of the magnetic core frame assembly, a resonant coil 6 is wound on an inner side of the second insulating supporting frame set, and the primary winding 4 is wound from the first insulating supporting frame set and extends out through a side of the second insulating supporting frame set.
The primary side, the secondary side and the resonant coil are integrated and assembled in an insulating support framework and isolated mode, the primary side coil is wound in the insulating support framework wire slot in a series connection mode, high alternating current loss caused by winding the primary side in a parallel connection mode can be effectively reduced, and the secondary side copper sheet can be directly inserted into the insulating support framework, so that the primary side and the secondary side are isolated at a fixed physical distance, and the problem of insufficient original isolation is effectively solved. The fixed physical isolation distance of the plastic body also effectively prevents the high-voltage breakdown risk, the product consistency is good, the process flow is simplified, and the mass production is easy. The power density is increased, the size of the product is smaller, the energy utilization rate is fully improved, social resources are protected, the primary coil is wound in the insulating support framework groove in a series connection mode, the relative position of the copper wire is fixed, the distribution parameters are uniform, the product consistency is improved, the secondary copper sheet does not need insulation treatment, the copper sheet is directly inserted into the insulating support framework to be physically insulated by the framework, the distribution parameters are uniform when the relative position is fixed, and the product consistency is improved.
In this embodiment, the magnetic core frame assembly includes an upper magnetic core 1, a lower magnetic core 8, a middle magnetic core 7, a bottom insertion tube 12, a middle insertion tube 11 and an upper insertion tube 9, the middle portion of the middle magnetic core 7 is provided with the middle insertion tube 11, the top and the bottom of the middle magnetic core 7 are respectively provided with the upper magnetic core 1 and the lower magnetic core 8, the middle portion of the inner bottom of the lower magnetic core 8 is provided with the bottom insertion tube 12 penetrating through the second insulating support frame group, the middle portion of the bottom of the upper magnetic core 1 is provided with the upper insertion tube 9 penetrating through the first insulating support frame group, the middle portion of the middle magnetic core 7 is provided with the middle insertion tube 11 penetrating through the lower portion of the first insulating support frame group, the top of the middle insertion tube 11 is connected with the bottom of the upper insertion tube 9, and the bottom of the middle insertion tube 11 is connected with the top of the bottom insertion tube 12.
In this embodiment, the first insulating support frame group includes a first insulating support frame 2 and a third insulating support frame 14, the first insulating support frame 2 and the third insulating support frame 14 are staggered and stacked with each other, a primary winding 4 is wound on the outer side of the first insulating support frame 2, and a secondary copper sheet 3 is inserted on the inner side of the third insulating support frame 14.
In this embodiment, the second insulating supporting framework group includes the second insulating supporting framework 5 and the spacing strip 13 of keeping apart, and the second insulating supporting framework 5 is equipped with the multiunit, and the outside winding of second insulating supporting framework 5 has resonant coil 6, and the spacing strip 13 of keeping apart is installed to the top edge portion department of second insulating supporting framework 5.
In the present embodiment, the third insulating supporting framework 14 and the first insulating supporting framework 2 are both ring-shaped hollow structures, and one end of the ring-shaped structure extends outward to form an E-shaped framework structure.
In this embodiment, the second insulating supporting framework 5 is also a ring-shaped hollow structure, and one end of the ring-shaped structure extends outward to form an E-shaped frame structure.
In the present embodiment, the first insulating supporting frame 2 and the second insulating supporting frame 5 are both provided with a notch 10 on one side for the primary winding 4 to pass through.
The use method of the transformer with the functions of reducing alternating current loss and improving reliability comprises the following steps:
the first insulating supporting framework 2 and the third insulating supporting framework 14 are staggered and crenelated to form a crenelated structure;
sleeving the first insulating support framework 2 and the third insulating support framework 14 into the upper insertion cylinder 9, and attaching the third insulating support framework 14 to two sides of the upper magnetic core 1;
winding a primary winding 4 on the outer side of the first insulating support framework 2 and penetrating through the notch 10, and inserting a secondary copper sheet 3 into a third insulating support framework 14;
the second insulating support bobbin 5 is crenellated and wound around the resonant coil 6.
In this example, as shown in fig. 5 below, under the same conditions, the approach loss ratio of the series winding after the insulating support frame is added is 0.0625/0.315 under high frequency interference, while the approach loss ratio of the parallel winding isolated by the conventional film is 0.5/2.5 under high frequency interference, and as a result, the ac loss calculated by the series winding after the insulating support frame is added is 333/1499mW, while the ac loss calculated by the parallel winding isolated by the conventional film is 2665/12060mW, and it is concluded that the loss of the series winding after the insulating support frame is added is much smaller than the loss of the parallel winding isolated by the conventional film, and the final calculated temperature is shown to be 90 ℃ to 122 ℃.
Electrifying the theoretical results for actual test; the series winding temperature after having increased the insulation support skeleton is 87 ℃, and the temperature of the parallel winding that conventional film kept apart is 121 ℃, and the result shows that the actual temperature of measuring is very close theoretical calculated value, so the utility model discloses the point can effectively reduce the high frequency and exchange the loss.
Above, only the further embodiments of the present invention are shown, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the protection scope of the present invention.
Claims (7)
1. Transformer with reduce alternating current loss and improve reliability characterized in that: including magnetic core support body subassembly, the interior well top department of this magnetic core support body subassembly is equipped with first insulation support skeleton group, and the winding has primary winding (4) on this insulation support skeleton group, and the equidistant vice limit copper sheet (3) of having inserted of magnetic core support body subassembly, the interior below department of magnetic core support body subassembly is equipped with second insulation support skeleton group, and the inboard meal of this second insulation support skeleton group has resonant coil (6), primary winding (4) are followed first insulation support skeleton group winding and are run through second insulation support skeleton group side extension and go out.
2. The transformer of claim 1, having reduced ac losses and improved reliability, wherein: the magnetic core support body assembly comprises an upper magnetic core (1), a lower magnetic core (8), a middle magnetic core (7), a bottom inserting barrel (12), a middle inserting barrel (11) and an upper inserting barrel (9), wherein the middle of the middle magnetic core (7) is provided with the middle inserting barrel (11), the top and the bottom of the middle magnetic core (7) are respectively provided with the upper magnetic core (1) and the lower magnetic core (8), the bottom inserting barrel (12) penetrating through a second insulation supporting framework group is arranged at the middle of the inner bottom of the lower magnetic core (8), the top of the upper magnetic core (1) is provided with the upper inserting barrel (9) penetrating through a first insulation supporting framework group, the middle of the middle magnetic core (7) is provided with the middle inserting barrel (11) penetrating through the lower side of the first insulation supporting framework group, the top of the middle inserting barrel (11) is connected with the bottom of the upper inserting barrel (9), and the bottom of the middle inserting barrel (11) is connected with the top of the bottom inserting barrel (12).
3. The transformer of claim 2 having reduced ac losses and improved reliability, wherein: the first insulation supporting framework group comprises a first insulation supporting framework (2) and a third insulation supporting framework (14), the first insulation supporting framework (2) and the third insulation supporting framework (14) are mutually staggered and stacked in castellation, a primary winding (4) is wound on the outer side of the first insulation supporting framework (2), and a secondary copper sheet (3) is inserted into the inner side of the third insulation supporting framework (14).
4. The transformer of claim 3 having reduced ac losses and improved reliability, wherein: the second insulating supporting framework group comprises a second insulating supporting framework (5) and isolating limiting strips (13), the second insulating supporting framework (5) is provided with a plurality of groups, the outer side of the second insulating supporting framework (5) is wound with resonance coils (6), and the top edge part of the second insulating supporting framework (5) is provided with the isolating limiting strips (13).
5. The transformer with reduced ac losses and improved reliability of claim 4, wherein: and the third insulating support framework (14) and the first insulating support framework (2) are both of annular hollow structures, and one end of each annular structure extends outwards to form an E-shaped frame structure.
6. The transformer of claim 5 having reduced ac losses and improved reliability, wherein: the second insulating supporting framework (5) is also of an annular hollow structure, and one end of the annular structure extends outwards to form an E-shaped frame structure.
7. The transformer with reduced ac losses and improved reliability of claim 6, wherein: and notches (10) which can be penetrated by the primary winding (4) are formed in one sides of the first insulating supporting framework (2) and the second insulating supporting framework (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220881137.2U CN218384782U (en) | 2022-04-14 | 2022-04-14 | Transformer with reduced AC loss and improved reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220881137.2U CN218384782U (en) | 2022-04-14 | 2022-04-14 | Transformer with reduced AC loss and improved reliability |
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| Publication Number | Publication Date |
|---|---|
| CN218384782U true CN218384782U (en) | 2023-01-24 |
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| CN202220881137.2U Active CN218384782U (en) | 2022-04-14 | 2022-04-14 | Transformer with reduced AC loss and improved reliability |
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| CN (1) | CN218384782U (en) |
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- 2022-04-14 CN CN202220881137.2U patent/CN218384782U/en active Active
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