High-efficiency high-frequency flat transformer
By using a frameless high-frequency planar transformer, combined with epoxy board, copper sheet, copper bar and magnetic core, the problems of poor coupling characteristics between windings and large size of traditional transformers are solved, achieving high efficiency and miniaturization, making it suitable for electronic equipment.
Patent Information
- Application Number
- CN202423017778.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional high-frequency transformers use a wired frame structure with a large number of winding turns, resulting in poor coupling characteristics between windings, high leakage inductance, high copper losses, limited efficiency, and large size, which is not conducive to the miniaturization and integration of electronic devices.
The high-efficiency, high-frequency planar transformer adopts a frameless design and is composed of epoxy board, copper sheet, copper strip, magnetic core and tape. By combining the insulated coil with the copper sheet winding, the coupling characteristics and leakage inductance between the windings are reduced, and the current conduction capability is increased. The magnetic field conduction is improved by using a ferrite core and the miniaturization is achieved by combining the epoxy base plate with the feet.
It improves the efficiency and consistency of transformers, reduces temperature rise and electromagnetic interference, reduces the size of the equipment, and enhances the portability and aesthetics of the equipment.
Smart Images
Figure CN223797241U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field, concretely relates to a high efficiency high frequency flat transformer. BACKGROUND
[0002] In the traditional high frequency transformer design, often face the problem of complex structure, process control difficulty, poor consistency and high cost. The traditional transformer usually adopts the wired framework structure, and the number of turns of the winding is large, the number of winding layers is large, which leads to poor coupling characteristics between the windings, large leakage inductance, and more copper loss of the transformer, and the efficiency is limited. In addition, the size of the traditional transformer is large, which is not conducive to the miniaturization and integration of electronic equipment. In view of this, the present application is proposed. SUMMARY
[0003] The present application provides a high efficiency high frequency flat transformer to solve the technical problems that the transformer in the prior art usually adopts the wired framework structure, the number of turns of the winding is large, the number of winding layers is large, which leads to poor coupling characteristics between the windings, large leakage inductance, and more copper loss of the transformer, and the efficiency is limited. In addition, the size of the traditional transformer is large, which is not conducive to the miniaturization and integration of electronic equipment. The above technical purpose of the utility model is realized by the following technical scheme:
[0004] A high efficiency high frequency flat transformer, comprising an epoxy tube, a coil, a copper sheet, a copper strip, a magnetic core, adhesive tape and an epoxy plate, the copper strip is arranged on both sides of the epoxy plate, the magnetic core is arranged on the top of the epoxy plate, the coil and the copper sheet are wound on the magnetic core, the copper strip is symmetrically arranged on both sides of the top of the epoxy plate, the epoxy tube is arranged on the magnetic core, the epoxy tube is connected with the coil, and the adhesive tape is wound on the magnetic core.
[0005] Further, the magnetic core is a ferrite magnetic core.
[0006] Further, the coil is an insulating coil.
[0007] Further, the copper sheet is composed of a plurality of thin copper sheets.
[0008] Further, the bottom of the epoxy plate is provided with a foot.
[0009] Further, the adhesive tape is a high temperature adhesive tape.
[0010] Compared with the prior art, the utility model has the beneficial effects:
[0011] By adopting the combination of the insulation self-adhesive coil and the copper sheet winding, and the design of the epoxy base plate out of the foot, the coupling characteristics between the windings are better, the leakage inductance is smaller, and the copper loss is also significantly reduced, so that the efficiency of the transformer is improved, and the transformer can keep lower temperature rise and smaller electromagnetic interference under high frequency working condition; the non-skeleton design reduces the process steps and the influence of human factors, and improves the consistency of the transformer; the design of the epoxy base plate out of the foot and the structure of the winding space utilization can significantly reduce the size of the transformer, which is beneficial to the miniaturization and integration of the electronic equipment, and improves the portability and beauty of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is a structural schematic view of the transformer of the utility model;
[0013] Fig. 2 It is a structural schematic view of the magnetic core of the utility model.
[0014] In the figure: 1, epoxy tube; 2, coil; 3, copper sheet winding; 4, copper bar; 5, magnetic core; 6, high temperature adhesive tape; 7, epoxy plate. DETAILED DESCRIPTION
[0015] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0016] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0017] To make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0018] Please refer to the accompanying Figs. 1-2 A high-efficiency high-frequency planar transformer, comprising an epoxy tube 1, a coil 2, copper sheets, copper bars 4, a magnetic core 5, adhesive tape and an epoxy board 7, the copper bars 4 are arranged on both sides of the epoxy board 7, the magnetic core 5 is arranged on the top of the epoxy board 7, the coil 2 and the copper sheets are wound on the magnetic core 5, the copper bars 4 are symmetrically arranged on both sides of the top of the epoxy board 7, the epoxy tube 1 is arranged on the magnetic core 5, the epoxy tube 1 is connected with the coil 2, and the adhesive tape is wound on the magnetic core 5.
[0019] The epoxy tube 1 serves as an insulation and support structure, ensures that the magnetic core 5 maintains a proper spacing with the winding (coil 2 and copper sheets), prevents electrical short circuits, and helps with heat dissipation, the coil 2 constitutes the main winding of the transformer, is responsible for transferring current and generating a magnetic field, the copper sheets form the winding together with the coil 2, enhance current conduction capability and improve power density, the copper bars 4 are arranged on both sides of the epoxy board 7, serve as current lead-out ends or are used to enhance structural stability, the magnetic core 5 provides a magnetic field path and enhances the magnetic coupling of the winding, is a key component for energy conversion of the transformer, the adhesive tape is used to fix the winding, insulation or protection of the internal structure of the transformer, and the epoxy board 7 serves as the bottom plate of the transformer, provides support and insulation.
[0020] In some embodiments, the magnetic core 5 is a ferrite magnetic core 5. The ferrite magnetic core 5 has high magnetic permeability and low loss characteristics, can more effectively conduct a magnetic field, and improves the efficiency and performance of the transformer.
[0021] In some embodiments, the coil 2 is an insulated coil 2. The insulated coil 2 ensures that the current flows in a specified path, prevents current leakage to other parts of the transformer, improves the safety and reliability of the transformer, and the insulation layer can also reduce electromagnetic interference between windings.
[0022] In some embodiments, the copper sheets are a plurality of thin copper sheets stacked together. The winding structure formed by stacking thin copper sheets can increase the contact area between windings, improve current conduction efficiency, and also help with heat dissipation. The gaps between the copper sheets can serve as heat dissipation channels.
[0023] In some embodiments, the bottom of the epoxy board 7 is provided with a foot. The foot is used to connect with external circuits or elements, so as to integrate the transformer into a larger electronic system. Through the foot design at the bottom of the epoxy board, the installation, fixation and electrical connection of the transformer can be conveniently realized, and at the same time, the overall size of the transformer can be reduced, and the integration and flexibility of the transformer in the electronic equipment can be improved.
[0024] In some embodiments, the adhesive tape is a high-temperature adhesive tape 6. The high-temperature adhesive tape 6 can maintain stable adhesion and insulation performance in a high-temperature environment, so as to ensure that the transformer will not fail due to aging or falling of the adhesive tape in a long-time work or high-temperature environment, and protect the internal structure of the transformer from the influence of the external environment.
[0025] It should be understood that the above specific embodiments of the utility model are only used for illustrative or explanatory purposes of the principles of the utility model, and do not constitute a limitation on the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.
Claims
1. A high-efficiency high-frequency planar transformer, characterized in that, The device includes an epoxy tube, a coil, copper sheets, copper strips, a magnetic core, tape, and an epoxy board. The copper strips are disposed on both sides of the epoxy board, the magnetic core is disposed on the top of the epoxy board, the coil and the copper sheets are wound around the magnetic core, the copper strips are symmetrically disposed on both sides of the top of the epoxy board, the epoxy tube is disposed on the magnetic core, the epoxy tube is connected to the coil, and the tape is wound around the magnetic core.
2. The high-efficiency high-frequency planar transformer according to claim 1, characterized in that, The magnetic core is a ferrite core.
3. A high-efficiency high-frequency planar transformer according to claim 1, characterized in that, The coil is an insulated coil.
4. A high-efficiency high-frequency planar transformer according to claim 1, characterized in that, The copper sheet is composed of several thin copper sheets stacked together.
5. A high-efficiency high-frequency planar transformer according to claim 1, characterized in that, The epoxy board has protruding feet at the bottom.
6. A high-efficiency high-frequency planar transformer according to claim 1, characterized in that, The tape is a high-temperature tape.