CN219066593U - Medium-high frequency single-phase rectifier transformer - Google Patents
Medium-high frequency single-phase rectifier transformer Download PDFInfo
- Publication number
- CN219066593U CN219066593U CN202223597945.5U CN202223597945U CN219066593U CN 219066593 U CN219066593 U CN 219066593U CN 202223597945 U CN202223597945 U CN 202223597945U CN 219066593 U CN219066593 U CN 219066593U
- Authority
- CN
- China
- Prior art keywords
- primary winding
- winding group
- magnetic circuit
- closed magnetic
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a medium-high frequency single-phase rectifier transformer, which comprises a closed magnetic circuit, a first primary winding group, a second primary winding group and two groups of secondary winding groups, wherein the first primary winding group is wound on the left side of the closed magnetic circuit, the second primary winding group is wound on the right side of the closed magnetic circuit, and the closed magnetic circuit is provided with a starting node and an ending node; the starting end of the first primary winding group and the starting end of the second primary winding group are connected with a starting node, and the junction tail end of the second primary winding group are connected with an ending node; the starting ends of the two groups of secondary winding groups are connected with the inner side of the closed magnetic circuit, and the junction tail ends of the two groups of secondary winding groups are connected with the outer side of the closed magnetic circuit. The beneficial effects are that: the design achieves the purpose of parallel connection of the lines, and the whole winding structure is more compact, so that current output is more stable, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a medium-high frequency single-phase rectifier transformer.
Background
At present, transformers are divided into two types: a step-down medium-high frequency single-phase rectifier transformer and a step-up medium-high frequency single-phase rectifier transformer; the step-down type medium-high frequency single-phase rectifier transformer is suitable for a 10 kA-level direct current power supply and a 10 kA-level direct current pulse power supply; in the heavy current industries such as electrolysis, electroplating, sintering, welding, cutting and the like; in addition, the boost type medium-high frequency single-phase rectifier transformer is suitable for a high-voltage direct-current power supply and a high-voltage direct-current pulse power supply; in high voltage industries such as electric dust removal, air purification, particle acceleration and the like;
the step-down high-power high-frequency pulse transformer has the advantages that in the practical engineering application process, the conductive sectional area of the secondary winding is large, the distance between the head and the tail of the winding is relatively large, and the problems of magnetic leakage, large leakage inductance and low efficiency are caused; the distance between the primary coil and the secondary coil winding of the buck high-power high-frequency pulse transformer is large, the mutual inductance coefficient is small, and the working efficiency is low;
the boost type medium-high frequency single-phase rectifier transformer is easy to have limited magnetic core size of a closed magnetic circuit in the practical engineering application process, so that the condition of electric leakage occurs; the voltage difference between the primary winding and the secondary winding is large, so that the voltage difference in practical application can reach hundreds of kV.
Disclosure of Invention
Aiming at the defects, the utility model aims to provide a medium-high frequency single-phase rectifier transformer which is safe and stable in output, compact in space between a primary coil and a secondary coil and high in working efficiency.
To achieve the purpose, the utility model adopts the following technical scheme:
the medium-high frequency single-phase rectifier transformer comprises a closed magnetic circuit, a first primary winding group, a second primary winding group and two groups of secondary winding groups, wherein the first primary winding group is wound on the left side of the closed magnetic circuit, the second primary winding group is wound on the right side of the closed magnetic circuit, and the closed magnetic circuit is provided with a starting node and an ending node; the starting end of the first primary winding group and the starting end of the second primary winding group are connected with the starting end node, and the junction tail end of the second primary winding group are connected with the tail end node; the starting ends of the two secondary winding groups are connected with the inner side of the closed magnetic circuit, and the junction tail ends of the two secondary winding groups are connected with the outer side of the closed magnetic circuit.
Preferably, in the medium-high frequency single-phase rectifier transformer, the closed magnetic path is composed of two U-shaped magnetic cores and at least one I-shaped magnetic core, one end of the I-shaped magnetic core is connected with one of the U-shaped magnetic cores, and the other end of the I-shaped magnetic core is connected with the other U-shaped magnetic core to form a rectangular frame.
Preferably, in the medium-high frequency single-phase rectifier transformer, one group of coils of the secondary winding group are sequentially sleeved on the outer surface of the first primary winding group, and the other group of coils of the secondary winding group are sequentially sleeved on the outer surface of the second primary winding group.
Preferably, in the medium-high frequency single-phase rectifier transformer, the number of turns wound by the first primary winding group and the second primary winding group is an even number of turns, and the number of turns wound by the first primary winding group and the second primary winding group is an even number of layers.
Preferably, in the medium-high frequency single-phase rectifier transformer, the coils of the two secondary winding groups are equal to the coil spacing wound by the first primary winding group and the second primary winding group.
Preferably, in the medium-high frequency single-phase rectifier transformer, the I-shaped magnetic cores are disposed in the middle of the two U-shaped magnetic cores.
Preferably, in the medium-high frequency single-phase rectifier transformer, the first primary winding group, the second primary winding group and the two secondary winding groups all adopt a spiral winding mode.
The utility model has the beneficial effects that:
the first primary winding group and the second primary winding group are respectively wound on the left side and the right side of the closed magnetic circuit, the starting ends of the first primary winding group and the second primary winding group are connected with the starting node of the closed magnetic circuit, the ending ends of the first primary winding group and the second primary winding group are connected with the ending node of the closed magnetic circuit, the parallel connection purpose is achieved through the design, the starting end of the secondary winding group is connected with the inner side of the closed magnetic circuit, the junction tail end of the secondary winding group is connected with the outer side of the closed magnetic circuit, the whole winding structure is more compact through the design, the current output is more stable, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present utility model;
FIG. 2 is a schematic circuit diagram of one embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of the secondary winding set connected in parallel with the first primary winding set and the second primary winding set.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are mechanical in the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 3, a medium-high frequency single-phase rectifier transformer comprises a closed magnetic circuit 11, a first primary winding set 12, a second primary winding set 13 and two secondary winding sets 14, wherein the first primary winding set 12 is wound on the left side of the closed magnetic circuit 11, the second primary winding set 13 is wound on the right side of the closed magnetic circuit 11, and the closed magnetic circuit 11 is provided with a start node and an end node; the starting end of the first primary winding group 12 and the starting end of the second primary winding group 13 are connected with a starting node, and the junction tail end of the second primary winding group 13 are connected with an ending node; the starting ends of the two groups of secondary winding groups 14 are connected with the inner side of the closed magnetic circuit 11, and the junction tail ends of the two groups of secondary winding groups 14 are connected with the outer side of the closed magnetic circuit 11; the first primary winding group 12 and the second primary winding group 13 are respectively wound on the left side and the right side of the closed magnetic circuit 11, the starting ends of the first primary winding group 12 and the second primary winding group 13 are connected with the starting node of the closed magnetic circuit 11, the junction tail ends of the first primary winding group 12 and the second primary winding group 13 are connected with the ending node of the closed magnetic circuit 11, the parallel connection purpose is achieved through the design, the starting end of the secondary winding group 14 is connected with the inner side of the closed magnetic circuit 11, and the junction tail end of the secondary winding group 14 is connected with the outer side of the closed magnetic circuit 11, so that the whole winding structure is more compact due to the design, the current output is more stable, and the working efficiency is improved;
it should be noted that, the coils of one group of secondary winding groups 14 are sequentially sleeved on the outer surface of the first primary winding group 12, and the coils of the other group of secondary winding groups 14 are sequentially sleeved on the outer surface of the second primary winding group 13; the number of turns wound by the first primary winding group 12 and the second primary winding group 13 is an even number of turns, and the number of layers wound by the first primary winding group 12 and the second primary winding group 13 is an even number of layers; the coil spacing between the two groups of secondary winding groups 14 is equal to the coil spacing between the first primary winding group 12 and the second primary winding group 13, so that the distance between the first primary winding group 12, the second primary winding group 13 and the secondary winding groups can be reduced better, the mutual inductance coefficient is improved, and the working efficiency is effectively improved.
In the medium-high frequency single-phase rectifier transformer in this embodiment, the closed magnetic circuit 11 is composed of two U-shaped magnetic cores 15 and at least one I-shaped magnetic core 16, wherein the I-shaped magnetic core 16 is disposed in the middle of the two U-shaped magnetic cores 15 to form a rectangular frame shape, and such a design effectively increases the length of the magnetic circuit.
Specifically, the bottom edge of the U-shaped magnetic core 15 has a size of 160mm by 40mm, and the i-shaped magnetic core has a size of 200mm by 40mm; magnetic conduction surface area of closed magnetic circuit 11
The magnetic path length is 1440mm.
In the medium-high frequency single-phase rectifier transformer of this embodiment, the first primary winding set 12, the second primary winding set 13 and the two secondary winding sets 14 all adopt a spiral winding mode, and the design makes the wound coil more stable and reliable.
The distribution numbers of the main components are as follows:
the technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (7)
1. The utility model provides a single-phase rectifier transformer of medium-high frequency, includes closed magnetic circuit, first primary winding group, second primary winding group and two sets of secondary winding group, its characterized in that: the first primary winding group is wound on the left side of the closed magnetic circuit, the second primary winding group is wound on the right side of the closed magnetic circuit, and the closed magnetic circuit is provided with a starting node and a tail node;
the starting end of the first primary winding group and the starting end of the second primary winding group are connected with the starting end node, and the junction tail end of the second primary winding group are connected with the tail end node;
the starting ends of the two secondary winding groups are connected with the inner side of the closed magnetic circuit, and the junction tail ends of the two secondary winding groups are connected with the outer side of the closed magnetic circuit.
2. The medium-high frequency single-phase rectifier transformer according to claim 1, wherein: the closed magnetic path is composed of two U-shaped magnetic cores and at least one I-shaped magnetic core, one end of each I-shaped magnetic core is connected with one U-shaped magnetic core, and the other end of each I-shaped magnetic core is connected with the other U-shaped magnetic core to form a rectangular frame.
3. The medium-high frequency single-phase rectifier transformer according to claim 1, wherein: one group of coils of the secondary winding groups are sequentially sleeved on the outer surface of the first primary winding group, and the other group of coils of the secondary winding groups are sequentially sleeved on the outer surface of the second primary winding group.
4. The medium-high frequency single-phase rectifier transformer according to claim 1, wherein: the number of turns wound by the first primary winding group and the second primary winding group is an even number of turns, and the number of layers wound by the first primary winding group and the second primary winding group is an even number of layers.
5. A medium-high frequency single-phase rectifier transformer according to claim 3, characterized in that: the coils of the two secondary winding groups are equal to the coil spacing wound by the first primary winding group and the second primary winding group.
6. The medium-high frequency single-phase rectifier transformer according to claim 2, characterized in that: the I-shaped magnetic cores are arranged in the middle of the two U-shaped magnetic cores.
7. The medium-high frequency single-phase rectifier transformer according to claim 1, wherein: the first primary winding group, the second primary winding group and the two secondary winding groups are all spirally wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597945.5U CN219066593U (en) | 2022-12-28 | 2022-12-28 | Medium-high frequency single-phase rectifier transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597945.5U CN219066593U (en) | 2022-12-28 | 2022-12-28 | Medium-high frequency single-phase rectifier transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219066593U true CN219066593U (en) | 2023-05-23 |
Family
ID=86343870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223597945.5U Active CN219066593U (en) | 2022-12-28 | 2022-12-28 | Medium-high frequency single-phase rectifier transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219066593U (en) |
-
2022
- 2022-12-28 CN CN202223597945.5U patent/CN219066593U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9881728B2 (en) | High frequency transformer | |
| US5594317A (en) | Inductive charger field shaping using nonmagnetic metallic conductors | |
| CN107452481A (en) | It is a kind of to be used for the EPC magnetic cores that transformer integrates with inductance in forward converter | |
| CN103259425B (en) | High-power high-frequency high-voltage rectifier transformer | |
| CN209675079U (en) | A kind of axial direction quadripartion photovoltaic boosting dry-type transformer | |
| CN219066593U (en) | Medium-high frequency single-phase rectifier transformer | |
| CN211907191U (en) | Transformer and power based on primary side fractional turn | |
| WO2024138990A1 (en) | High-power high-frequency transformer and power supply comprising same | |
| CN202585081U (en) | High-power magnetic integrated transformer for electric vehicle charging machine | |
| CN219143945U (en) | Single-phase power frequency rectifier transformer | |
| CN208570315U (en) | A kind of discharge lamp starting low-frequency transformer | |
| CN110718378A (en) | Compensation transformer of full-automatic compensation power voltage stabilizer | |
| CN213519533U (en) | Inductor with coils connected in series inside and outside | |
| CN213025750U (en) | Staggered reverse coupling Boost-buck reactor | |
| CN212161537U (en) | High-frequency high-voltage coil framework | |
| CN210692308U (en) | Power capacitor filter reactor | |
| CN202796401U (en) | High frequency switching power supply transformer | |
| CN201887661U (en) | Switching power supply for electromagnetic oven and high-frequency mutual inductor for same | |
| CN219143942U (en) | High-voltage rectifying device | |
| CN201051441Y (en) | Ozonizer high-power high-frequency transformer | |
| CN220290603U (en) | Common mode inductance | |
| CN219832388U (en) | Intermediate frequency transformer with superimposed winding primary coil | |
| CN212542158U (en) | Z-shaped double-strand parallel-wound coil inductor | |
| CN211555645U (en) | High-frequency reactor | |
| CN219163163U (en) | Integrated module of transformer and inductance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |