Main harmonic integrated transformer structure and transformer thereof
By adopting the main harmonic integrated transformer structure in the transformer, using the skeleton split design and the through-layout of the magnetic core, the problems of complex structure and small leakage inductance of the existing transformer are solved, and the leakage inductance of the transformer is increased, volume streamlining and cost reduction are achieved.
Patent Information
- Application Number
- CN202420416659.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The existing transformer winding structure is complex and has small leakage inductance, resulting in high production and assembly costs.
The main harmonic integrated transformer structure is adopted, and the different windings are separated through the grooved design of the skeleton, which increases leakage inductance, and penetrates the through holes of the skeleton through the magnetic core, simplifying the transformer volume and reducing production and assembly costs.
It effectively increases the leakage inductance of the transformer, streamlines the transformer volume, reduces production and assembly costs, and improves the electrical performance and energy efficiency of the transformer.
Smart Images
Figure CN222600712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer design, in particular to a main-harmonic integrated transformer structure and a transformer thereof. Background Art
[0002] In the prior art, transformer windings are mostly wound on the same winding slot, and a resonant winding and a magnetic core are added on one side of the transformer. The structure of the transformer product is relatively complex and the leakage inductance is relatively small, resulting in high costs during the transformer production and assembly process. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a main-resonant integrated transformer structure and a transformer thereof, which can effectively increase the leakage inductance of the transformer, simplify the volume of the transformer, and reduce the cost in the transformer production and assembly process.
[0004] On the one hand, a main-harmonic integrated transformer according to an embodiment of the utility model includes:
[0005] A frame, wherein the frame is provided with a first winding groove, a second winding groove and a first through hole;
[0006] A winding, wherein the winding is provided with a first winding and a second winding, the first winding is wound around the outer surface of the first winding groove, and the second winding is wound around the outer surface of the second winding groove;
[0007] A magnetic core, wherein the magnetic core is arranged inside the first through hole, and the magnetic core includes a first magnetic core and a second magnetic core, wherein the first magnetic core is provided with a first middle column, and the second magnetic core is provided with a second middle column, and the first magnetic core and the second magnetic core are connected through the first middle column and the second middle column.
[0008] According to some embodiments of the utility model, the skeleton is also provided with a partition plate, a first extension plane is provided on the side of the first winding groove away from the partition plate, a second extension plane is provided on the side of the second winding groove away from the partition plate, the first extension plane is provided with a first winding terminal, and the second extension plane is provided with a second winding terminal, wherein the shapes of the first extension plane and the second extension plane are adapted to the shape of the magnetic core.
[0009] According to some embodiments of the utility model, the first magnetic core is provided with a first magnetic core side column, and the second magnetic core is provided with a second magnetic core side column, one end of the first magnetic core side column is connected to the first middle column, the other end of the first magnetic core side column is connected to one end of the second magnetic core side column, and the other end of the second magnetic core side column is connected to the second middle column.
[0010] According to some embodiments of the present utility model, the magnetic core is further provided with a magnetic column, one end of the magnetic column is connected to the first middle column, and the other end of the magnetic column is connected to the second middle column.
[0011] According to some embodiments of the present utility model, a ceramic sheet is disposed on one side of the magnetic column.
[0012] According to some embodiments of the present invention, both the first winding groove and the second winding groove are provided with a plurality of heat dissipation grooves.
[0013] According to some embodiments of the present invention, grooves are provided on one side of the first magnetic core side column and the second magnetic core side column close to the first middle column and the second middle column.
[0014] In a second aspect, an embodiment of the present utility model further proposes a transformer, comprising the main-harmonic integrated transformer structure as described in the embodiment of the first aspect above.
[0015] A main-harmonic integrated transformer structure and transformer according to the embodiment of the utility model have at least the following beneficial effects:
[0016] The skeleton is provided with a first winding groove, a second winding groove and a first through hole; the winding is provided with a first winding and a second winding, the first winding is wound on the outer surface of the first winding groove, and the second winding is wound on the outer surface of the second winding groove; the magnetic core is provided inside the first through hole, and the magnetic core includes a first magnetic core and a second magnetic core, wherein the first magnetic core is provided with a first middle column, the second magnetic core is provided with a second middle column, and the first magnetic core and the second magnetic core are connected through the first middle column and the second middle column. The transformer skeleton adopts a slot design to separate different windings from each other, thereby increasing the leakage inductance of the product, and the magnetic core runs through the first through hole, which effectively simplifies the volume of the transformer and reduces the production and assembly cost of the transformer while ensuring the efficiency and stability of the transformer.
[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the overall structure of the main-harmonic integrated transformer structure of an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the skeleton structure of an embodiment of the utility model;
[0021] Figure 3 This is a schematic diagram of the magnetic core structure of an embodiment of the utility model;
[0022] Figure 4 This is a schematic diagram of the ceramic structure of an embodiment of the utility model.
[0023] Reference numerals:
[0024] Skeleton 100; first winding groove 110; second winding groove 120; first through hole 130; partition plate 140; first extension plane 150; first winding terminal 151; second extension plane 160; second winding terminal 161; heat dissipation groove 170; winding 200; first winding 210; second winding 220; magnetic core 300; first magnetic core 310; first center column 311; first side column 312; second magnetic core 320; second center column 321; second side column 322; magnetic column 330; groove 340. DETAILED DESCRIPTION
[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0026] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0028] Reference Figures 1 to 3The present application provides a main-harmonic integrated transformer structure, including a skeleton 100, the skeleton 100 is provided with a first winding groove 110, a second winding groove 120 and a first through hole 130; a winding, the winding is provided with a first winding 210 and a second winding, the first winding 210 is wound around the outer surface of the first winding groove 110, and the second winding is wound around the outer surface of the second winding groove 120; a magnetic core, the magnetic core is arranged inside the first through hole 130, and the magnetic core 300 includes a first magnetic core 310 and a second magnetic core 320, wherein the first magnetic core 310 is provided with a first middle column 311, and the second magnetic core 320 is provided with a second middle column, and the first magnetic core 310 and the second magnetic core 320 are connected through the first middle column 311 and the second middle column. The transformer skeleton 100 adopts a slot design to separate different windings from each other, thereby increasing the leakage inductance of the product. The magnetic core 300 runs through the first through hole 130, which effectively simplifies the volume of the transformer and reduces the production and assembly cost of the transformer while ensuring the efficiency and stability of the transformer.
[0029] It should be noted that most of the transformer windings on the market are currently wound on the same winding slot, so that the magnetic flux coupling between adjacent coils is enhanced, resulting in a smaller leakage inductance of the transformer. By increasing the leakage inductance of the transformer by adding a resonant winding and a magnetic core on one side of the transformer, the structure of the transformer is more complicated and the cost is higher. In this embodiment, by adopting a slot design for the transformer skeleton 100, different windings are separated from each other, and the distance between the windings is increased, so that the magnetic flux coupling between adjacent windings is weakened, thereby increasing the leakage inductance of the transformer, and by providing the first winding slot 110 and the second winding slot 120, the number of winding layers of the first winding 210 and the second winding 220 is reduced, the size of the first winding 210 and the second winding 220 is reduced, the leakage magnetic loss of the transformer is reduced, the electrical performance of the first winding 210 and the second winding 220 is improved, and the parameters such as the resistance and inductance of the transformer are reduced, thereby optimizing the performance and energy efficiency of the transformer. In addition, since the magnetic core 300 is arranged inside the first through hole 130 of the skeleton 100, and the first magnetic core 310 and the second magnetic core 320 are connected by the first middle column 311 and the second middle column, the magnetic circuit of the transformer is more compact, which is conducive to improving the energy transmission efficiency of the transformer. By arranging the first winding 210 and the second winding 220 on the outer surface of different winding grooves of the skeleton 100, combined with the layout of the first magnetic core 310, the second magnetic core 320 and the first through hole 130, the distribution of the electromagnetic field of the transformer can be effectively optimized, thereby improving the transmission efficiency and stability of the transformer. It can be understood by those skilled in the art that the first winding groove 110 and the second winding groove 120 can both be wound with the first winding 210 or the second winding 220, the first winding 210 can be a primary winding or a secondary winding, and the second winding 220 can be a primary winding or a secondary winding, and no specific restrictions are made in this embodiment.
[0030] The skeleton 100 is also provided with a partition plate 140, a first extension plane 150 is provided on the side of the first winding groove 110 away from the partition plate 140, a second extension plane 160 is provided on the side of the second winding groove 120 away from the partition plate 140, the first extension plane 150 is provided with a first winding terminal 151, and the second extension plane 160 is provided with a second winding terminal 161, wherein the shapes of the first extension plane 150 and the second extension plane 160 are adapted to the shape of the magnetic core 300.
[0031] It should be noted that the winding groove of the skeleton 100 is divided into a first winding groove 110 and a second winding groove 120 by setting a partition plate 140, so that the transformer forms an independent magnetic circuit to avoid mutual interference between magnetic fluxes of different windings. By dividing the winding grooves, the loss and leakage of magnetic flux of the transformer can be reduced, and the working efficiency and working performance of the transformer can be improved. In addition, the shape of the first extension plane 150 and the second extension plane 160 is compatible with the shape of the magnetic core 300, ensuring that the skeleton 100 and the magnetic core 300 can be in good contact and fit, thereby realizing efficient transmission of transformer energy. The skeleton 100, the first winding terminal and the second winding terminal adopt an integrated design, and the pins of the windings are connected through terminals, which makes the transformer easy to process, has high reliability, and is safer and more reliable when assembling the transformer.
[0032] The first magnetic core 310 is provided with a first side column 312, and the second magnetic core 320 is provided with a second side column 322. One end of the first side column 312 is connected to the first middle column 311, and the other end of the first side column 312 is connected to one end of the second side column 322, and the other end of the second side column 322 is connected to the second middle column. It should be noted that in this embodiment, the first side column 312 and the second side column 322 are both L-shaped magnetic core side columns. Excessive leakage inductance of the transformer will cause an increase in the load of the magnetic core 300, and the increased load is mainly concentrated on the first middle column 311 and the second middle column. In order to ensure the normal operation of the transformer, the cross-sectional area of the first middle column 311 and the second middle column is large, but the cross-sectional area of the side column remains unchanged, thereby ensuring that the working efficiency of the transformer does not change under the premise of simplifying the volume of the magnetic core 300. The first magnetic core 310 and the second magnetic core 320 are connected by the first side column 312 and the second side column 322, which can improve the conduction efficiency of the transformer magnetic flux in the magnetic core 300 and reduce the loss of magnetic flux. In addition, the connection between the first side column 312 and the first middle column 311, and the second side column 322 and the second middle column of the transformer can enhance the structural stability of the magnetic core 300, prevent deformation or displacement of the magnetic core 300, and improve the working reliability of the transformer.
[0033] The magnetic core 300 is also provided with a magnetic column 330, one end of the magnetic column 330 is connected to the first middle column 311, and the other end of the magnetic column 330 is connected to the second middle column. It should be noted that by providing the magnetic column 330, the magnetic induction intensity between the first magnetic core 310 and the second magnetic core 320 is increased, and by adjusting the size and material of the magnetic column 330, the intensity and distribution of the magnetic field can be further adjusted to optimize the performance of the magnetic core 300, and the magnetic column 330 is respectively connected to the first magnetic core 310 and the second magnetic core 320, so that the first magnetic core 310 and the second magnetic core 320 form a closed magnetic circuit, ensuring that the magnetic field can be effectively conducted in the magnetic circuit to avoid the loss and leakage of the magnetic field.
[0034] Reference Figure 4 , a ceramic sheet is disposed on one side of the magnetic column 330. It should be noted that by disposing the ceramic sheet 331 on one side of the magnetic column 330, the magnetic field is blocked to prevent the magnetic fields between the first winding groove 110 and the second winding groove 120 from interfering with each other, and the ceramic sheet 331 can physically protect the magnetic column 330 and reduce damage to the magnetic column 330.
[0035] The first winding groove 110 and the second winding groove 120 are both provided with a plurality of heat dissipation grooves 170. It should be noted that by providing a plurality of evenly distributed heat dissipation grooves 170 on the outer surface of the winding groove, the heat dissipation area of the first magnetic core 310 and the second magnetic core 320 can be effectively increased, and the heat dissipation efficiency of the first magnetic core 310 and the second magnetic core 320 can be improved, thereby reducing the temperature of the magnetic core 300 and preventing the transformer from being damaged by overheating. The heat dissipation grooves 170 can also increase the air circulation channel, so that the cooling air volume of the transformer is increased, thereby improving the heat dissipation efficiency of the first magnetic core 310 and the second magnetic core 320.
[0036] A groove 340 is provided on one side of the first side column 312 and the second side column 322 close to the first middle column 311 and the second middle column. It should be noted that when the first middle column 311 and the second middle column are installed in the first through hole 130, the first winding 210 and the second winding 220 are wound along the first winding groove 110 and the second winding groove 120, and the raised parts of the first winding groove 110 and the second winding groove 120 pass through the groove 340 to make the skeleton 100 firmly mounted on the first side column 312 and the second side column 322, thereby enhancing the stability of the transformer structure, effectively preventing the vibration of the skeleton 100 and the magnetic core 300 during the operation of the transformer, and by providing the groove 340, the surface area of the first winding 210 and the second winding 220 can be increased, the heat dissipation effect of the magnetic core 300 can be improved, and the service life of the equipment can be extended.
[0037] In addition, an embodiment of the present application further provides a transformer, which includes the main-harmonic integrated transformer structure described in any of the above embodiments.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "further embodiments", "some specific embodiments" or "some examples" etc. means that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A main-resonant integrated transformer structure, characterized in that: include: A frame, wherein the frame is provided with a first winding groove, a second winding groove and a first through hole; A winding, wherein the winding is provided with a first winding and a second winding, the first winding is wound around the outer surface of the first winding groove, and the second winding is wound around the outer surface of the second winding groove; A magnetic core, wherein the magnetic core is arranged inside the first through hole, and the magnetic core includes a first magnetic core and a second magnetic core, wherein the first magnetic core is provided with a first middle column, and the second magnetic core is provided with a second middle column, and the first magnetic core and the second magnetic core are connected through the first middle column and the second middle column.
2. The main-harmonic integrated transformer structure according to claim 1 is characterized in that: The skeleton is also provided with a partition plate, a first extension plane is provided on the side of the first winding groove away from the partition plate, a second extension plane is provided on the side of the second winding groove away from the partition plate, a first winding terminal is provided on the first extension plane, and a second winding terminal is provided on the second extension plane, wherein the shapes of the first extension plane and the second extension plane are adapted to the shape of the magnetic core.
3. The main-harmonic integrated transformer structure according to claim 1, characterized in that: The first magnetic core is provided with a first magnetic core side column, and the second magnetic core is provided with a second magnetic core side column. One end of the first magnetic core side column is connected to the first middle column, the other end of the first magnetic core side column is connected to one end of the second magnetic core side column, and the other end of the second magnetic core side column is connected to the second middle column.
4. The main-harmonic integrated transformer structure according to claim 1, characterized in that: The magnetic core is further provided with a magnetic column, one end of the magnetic column is connected to the first middle column, and the other end of the magnetic column is connected to the second middle column.
5. The main-harmonic integrated transformer structure according to claim 4 is characterized in that: A ceramic sheet is arranged on one side of the magnetic column.
6. The main-harmonic integrated transformer structure according to claim 1, characterized in that: The first winding groove and the second winding groove are both provided with a plurality of heat dissipation grooves.
7. The main-harmonic integrated transformer structure according to claim 3 is characterized in that: A groove is provided on one side of the first magnetic core side column and the second magnetic core side column close to the first middle column and the second middle column.
8. A transformer, characterized in that: include: A main-resonant integrated transformer structure as claimed in any one of claims 1 to 7.