CN220456207U - Magnetic integrated transformer - Google Patents
Magnetic integrated transformer Download PDFInfo
- Publication number
- CN220456207U CN220456207U CN202322112964.2U CN202322112964U CN220456207U CN 220456207 U CN220456207 U CN 220456207U CN 202322112964 U CN202322112964 U CN 202322112964U CN 220456207 U CN220456207 U CN 220456207U
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- magnetic core
- framework
- transformer
- magnetic
- lead
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052802 copper Inorganic materials 0.000 claims abstract description 37
- 239000010949 copper Substances 0.000 claims abstract description 37
- 239000011258 core-shell material Substances 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 26
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a magnetic integrated transformer, comprising: the magnetic core shell comprises a first magnetic core and a second magnetic core, and copper sheets are arranged at the connecting positions of the first magnetic core and the second magnetic core; the transformer framework is arranged inside the magnetic core, the transformer framework comprises a first framework and a second framework, magnetic sheets are arranged between the first framework and the second framework, and the first framework, the second framework and the magnetic sheets are integrally formed through injection molding. Through cutting the magnetic core into first magnetic core and second magnetic core to increase the copper sheet at the hookup location of first magnetic core and second magnetic core and dispel the heat, reduce the temperature rise of transformer, through with first skeleton, magnetic sheet and second skeleton integrated into one piece that moulds plastics, guarantee under the unchangeable circumstances of assurance magnetic sheet position that leakage inductance is stable, with the resonance inductance that makes the leakage inductance replace the integrated transformer of magnetism, thereby realize main transformer and the integrated design of syntonizer, reduce the magnetic part in the vehicle-mounted charger, reduce manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a magnetic integrated transformer.
Background
Along with the continuous innovation and breakthrough of the technology, the power of the electronic product is larger and the whole volume of the electronic product is smaller, but the vehicle-mounted charger in the prior art is of a resonant inductance structure formed by a resonator and a filter, and the main transformer and the resonator are of independent structures, so that more magnetic parts in the vehicle-mounted charger are caused, and the whole cost of the vehicle-mounted charger is higher.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the magnetic integrated transformer, which can reduce magnetic parts in the OBC and reduce the cost of the OBC.
In one aspect, a magnetically integrated transformer according to an embodiment of the present utility model includes:
the magnetic core shell comprises a first magnetic core and a second magnetic core, and copper sheets are arranged at the connecting positions of the first magnetic core and the second magnetic core;
the transformer framework is arranged inside the magnetic core, the transformer framework comprises a first framework and a second framework, magnetic sheets are arranged between the first framework and the second framework, and the first framework, the second framework and the magnetic sheets are integrally formed through injection molding.
According to some embodiments of the utility model, the copper sheet is a T-shaped copper sheet, the T-shaped copper sheet comprises a first L-shaped copper sheet and a second L-shaped copper sheet, the first L-shaped copper sheet is connected with the first magnetic core, and the second L-shaped copper sheet is connected with the second magnetic core.
According to some embodiments of the utility model, a first concave portion is disposed on an inner side of the first magnetic core, a second concave portion is disposed on an inner side of the second magnetic core, the first concave portion is adapted to the second concave portion, and when the first magnetic core and the second magnetic core are connected to form a magnetic core housing, the first concave portion and the second concave portion form a first magnetic core opening.
According to some embodiments of the utility model, a second core opening is also provided on the opposite side of the first core opening.
According to some embodiments of the utility model, the magnetically integrated transformer further comprises a base, the base is provided with a first clamping groove and a second clamping groove, and the transformer framework in the magnetic core shell is detachably connected with the base through the first clamping groove and the second clamping groove.
According to some embodiments of the utility model, the transformer armature is connected to the core housing by dispensing.
According to some embodiments of the utility model, the magnetically integrated transformer further comprises a primary winding wound with the second bobbin surface and a secondary winding wound with the first bobbin surface.
According to some embodiments of the utility model, a first lead-out wire fixing device is arranged on one side of the second framework, a second lead-out wire fixing device is arranged on the other side of the second framework, the lead-out wire of the primary winding is fixed on the second framework through the first lead-out wire fixing device, and the lead-out wire of the secondary winding is fixed on the second framework through the second lead-out wire fixing device.
The magnetic integrated transformer provided by the embodiment of the utility model has at least the following beneficial effects:
the magnetic core shell comprises a first magnetic core and a second magnetic core, and copper sheets are arranged at the connecting positions of the first magnetic core and the second magnetic core; the transformer framework is arranged inside the magnetic core, the transformer framework comprises a first framework and a second framework, magnetic sheets are arranged between the first framework and the second framework, and the first framework, the second framework and the magnetic sheets are integrally formed through injection molding. Through cutting the magnetic core into first magnetic core and second magnetic core to increase the copper sheet at the hookup location of first magnetic core and second magnetic core and dispel the heat, reduce the temperature rise of transformer, guarantee the work efficiency of transformer, through the integrated into one piece that moulds plastics first skeleton, magnetic sheet and second skeleton, guarantee under the unchangeable circumstances of assurance magnetic sheet position that the leakage inductance of transformer is stable, with the resonance inductance that makes the leakage inductance replace the magnetism integrated transformer, thereby realize main transformer and resonator integrated design, reduce the magnetic part in the on-vehicle charger, reduce manufacturing cost.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the overall structure of a magnetically integrated transformer according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a copper sheet structure of a magnetic integrated transformer according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram illustrating a structure of a first opening formed by a first recess and a second recess of a magnetic integrated transformer according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram illustrating a structure of a second opening formed by a first recess and a second recess of a magnetic integrated transformer according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of a base structure of a magnetically integrated transformer according to an embodiment of the utility model.
Reference numerals:
a core housing 100; a first magnetic core 110; a second magnetic core 120; copper sheet 130; a first L-shaped copper sheet 131; a second L-shaped copper sheet 132; a first recess 140; a first opening 141; a second recess 150; a second opening 151; a transformer skeleton 200; a first skeleton 210; secondary winding 211; a second skeleton 220; primary winding 221; a magnetic sheet 230; a base 300; a first card slot 310; a second clamping groove 320; a first lead wire fixture 330; and a second lead wire fixture 340.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, an embodiment of the present utility model provides a magnetically integrated transformer, including: the magnetic core housing 100 comprises a first magnetic core 110 and a second magnetic core 120, wherein a copper sheet 130 is arranged at the connection position of the first magnetic core 110 and the second magnetic core 120; the transformer skeleton 200, the transformer skeleton 200 set up in inside the magnetic core housing 100, the transformer skeleton 200 includes first skeleton 210 and second skeleton 220, be provided with magnetic sheet 230 between first skeleton 210 and the second skeleton 220, first skeleton 210, second skeleton 220 and magnetic sheet 230 are through injection moulding integrated into one piece.
Through cutting magnetic core shell 100 into first magnetic core 110 and second magnetic core 120 to increase copper sheet 130 at the hookup location of first magnetic core 110 and second magnetic core 120 and dispel the heat, reduce the temperature rise of transformer, guarantee the work efficiency of transformer, through the integrated into one piece that moulds plastics first skeleton 110, magnetic sheet 130 and second skeleton 120, guarantee under the unchangeable circumstances of guaranteeing magnetic sheet 130 position that the leakage inductance of transformer is stable, so that the resonance inductance of the integrated transformer of leakage inductance replacement magnetism, thereby realize main transformer and resonator integrated design, reduce the magnetic part in the vehicle-mounted charger, reduce manufacturing cost.
The copper sheet 130 is a T-shaped copper sheet, the T-shaped copper sheet comprises a first L-shaped copper sheet 131 and a second L-shaped copper sheet 132, the first L-shaped copper sheet 131 is connected with the first magnetic core 110, the second L-shaped copper sheet 132 is connected with the second magnetic core 120, and the closing of a magnetic circuit is realized by arranging the T-shaped copper sheet at a gap between the first magnetic core 110 and the second magnetic core 120, so that magnetic field leakage and phrase increase are usually caused by a gap between the first magnetic core 110 and the second magnetic core 120, and the gap is filled by the T-shaped copper sheet, so that magnetic force is more compact, magnetic conductivity is further improved, and energy loss is reduced; the T-shaped copper sheets are divided into the first L-shaped copper sheets 131 and the second L-shaped copper sheets 132 and are respectively connected to the first magnetic core 110 and the second magnetic core 120, so that the first L-shaped copper sheets 131 and the second L-shaped copper sheets 132 radiate heat through different paths, the heat stability of the transformer is improved, and the influence of temperature rise on the performance of the first magnetic core 110 and the second magnetic core 120 is reduced.
The inner side of the first magnetic core 110 is provided with a first concave portion 140, the inner side of the second magnetic core 120 is provided with a second concave portion 150, the first concave portion 140 is matched with the second concave portion 150, when the first magnetic core 110 and the second magnetic core 120 are connected to form the magnetic core housing 100, the first concave portion 140 and the second concave portion 150 form a first opening 140, and the opposite side of the first opening 141 is further provided with a second opening 151. Specifically, by disposing the first concave portion 140 on the inner side of the first magnetic core 110, and disposing the second concave portion 150 on the inner side of the second magnetic core 120, the first concave portion 140 is adapted to the second concave portion 150, so as to enhance the transmission efficiency of the magnetic field between the first magnetic core 110 and the second magnetic core 120, reduce the magnetic resistance, and improve the magnetic induction and the magnetic coupling phenomenon; in addition, since the first recess 140 and the second recess 160 form the first opening 141, the heat dissipation effect of the first magnetic core 110 and the second magnetic core 120 is promoted, the fluidity of the air inside the magnetic core housing 100 is enhanced, the heat conduction and the heat dissipation efficiency of the first magnetic core 110 and the second magnetic core 120 are improved, the working temperature of the magnetic cores is reduced, and the stability and the reliability of the transformer are improved.
A second opening 151 is further disposed at the opposite side of the first opening 141, and the structure of the second opening 151 is the same as that of the first opening 141, which is not described herein. Specifically, by the combined design of the first opening 141 and the second opening 151, a ventilation channel between the magnetic core housing 100 and the transformer framework 200 is formed, so that heat generated by windings of the transformer during operation is effectively removed, and the performance of the magnetic core is prevented from being reduced due to overheating. In addition, the second opening 151 is disposed at the opposite side of the first opening 141, so that temperature balance inside the magnetic core housing 100 can be realized, heat inside the magnetic core housing 100 can be effectively distributed uniformly, local overheating caused by point concentration is avoided, and stability and reliability of the transformer are further improved.
The magnetic integration transformer of this embodiment still includes base 300, base 300 is provided with first draw-in groove 310 and second draw-in groove 320, transformer skeleton 200 in the magnetic core shell 100 can dismantle with base 300 through first draw-in groove 310 and second draw-in groove 320 and be connected, can dismantle with the first draw-in groove 310 and the second draw-in groove 320 of base 300 design through transformer skeleton 200 for transformer skeleton 200 can be convenient install on base 300, thereby simplify the assembly process, improve production efficiency, when the transformer is maintained or is changed, also can be relaxed dismantle transformer skeleton 200, reduce maintenance cost and work.
Further as an alternative implementation, the magnetically integrated transformer of the present embodiment further includes a primary winding 221 and a secondary winding 211, where the primary winding 221 is wound on the surface of the second bobbin 220, and the secondary winding 211 is wound on the surface of the first bobbin 210. By winding the primary winding 221 and the secondary winding 211 on the surfaces of the first framework 210 and the second framework 220 respectively, better electrical isolation is realized, and the requirement of the transformer on an insulating layer is reduced; in addition, heat conduction between the first bobbin 210 and the second bobbin 220 can be reduced, temperature rise of the transformer can be reduced, and overload capacity and operation stability of the transformer can be improved.
A first lead-out wire fixing device 330 is arranged on one side of the second framework 220, a second lead-out wire fixing device 340 is arranged on the other side of the second framework 220, the lead-out wires of the primary winding 221 are fixed on the second framework 220 through the first lead-out wire fixing device 330, and the lead-out wires of the secondary winding 211 are fixed on the second framework 220 through the second lead-out wire fixing device 340. By providing the first lead fixing device 330 and the second lead fixing device 340 at both sides of the second bobbin 220, the leads of the primary winding 221 and the secondary winding 211 can be firmly fixed, preventing the leads of the windings from loosening due to vibration when the transformer is operated, and improving the stability and reliability of the transformer. In addition, the lead wire fixing device can ensure that a sufficient distance and an insulating layer exist between the lead wire of the winding and the framework of the transformer, so that the safety of the transformer is improved, and the occurrence of short circuit between the lead wire and the framework is prevented, so that the transformer is prevented from being failed.
In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A magnetically integrated transformer, comprising:
the magnetic core shell comprises a first magnetic core and a second magnetic core, and copper sheets are arranged at the connecting positions of the first magnetic core and the second magnetic core;
the transformer framework is arranged inside the magnetic core, the transformer framework comprises a first framework and a second framework, magnetic sheets are arranged between the first framework and the second framework, and the first framework, the second framework and the magnetic sheets are integrally formed through injection molding.
2. The magnetically integrated transformer of claim 1, wherein the copper sheet is a T-shaped copper sheet comprising a first L-shaped copper sheet connected to the first magnetic core and a second L-shaped copper sheet connected to the second magnetic core.
3. The magnetic integrated transformer of claim 1, wherein a first recess is disposed on an inner side of the first magnetic core, a second recess is disposed on an inner side of the second magnetic core, the first recess is adapted to the second recess, and the first recess and the second recess form a first opening when the first magnetic core and the second magnetic core are connected to form a magnetic core housing.
4. A magnetically integrated transformer according to claim 3, wherein the opposite side of the first opening is further provided with a second opening.
5. The magnetically integrated transformer of claim 1, further comprising a base, wherein the base is provided with a first slot and a second slot, wherein the transformer backbone within the magnetic core housing is detachably connected to the base via the first slot and the second slot.
6. The magnetically integrated transformer of claim 5, wherein the transformer armature is connected to the core housing by dispensing.
7. The magnetically integrated transformer of claim 1, further comprising a primary winding and a secondary winding, the primary winding being wound with the second bobbin surface and the secondary winding being wound with the first bobbin surface.
8. The magnetically integrated transformer of claim 7, wherein a first lead-out wire fixture is provided on one side of the second bobbin, a second lead-out wire fixture is provided on the other side of the second bobbin, the lead-out wire of the primary winding is secured to the second bobbin by the first lead-out wire fixture, and the lead-out wire of the secondary winding is secured to the second bobbin by the second lead-out wire fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112964.2U CN220456207U (en) | 2023-08-07 | 2023-08-07 | Magnetic integrated transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112964.2U CN220456207U (en) | 2023-08-07 | 2023-08-07 | Magnetic integrated transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220456207U true CN220456207U (en) | 2024-02-06 |
Family
ID=89724758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322112964.2U Active CN220456207U (en) | 2023-08-07 | 2023-08-07 | Magnetic integrated transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220456207U (en) |
-
2023
- 2023-08-07 CN CN202322112964.2U patent/CN220456207U/en active Active
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