Copper-clad aluminum high-current output planar transformer
By using a copper-clad aluminum high-current output planar transformer with two rows of copper-clad aluminum feet and an alternating laminated connection structure, the problems of high cost and complex manufacturing process of high-power power transformers are solved, achieving low cost, high efficiency and good heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIXING HUIHUA ELECTRONICS CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-05
AI Technical Summary
Existing high-power power transformers have large secondary currents and high costs, and the existing connection methods are complex and difficult to promote.
The copper-clad aluminum high-current output planar transformer includes a magnetic core, an embedded base, a coil, and a PCB. The output component uses two rows of copper-clad aluminum feet, and the coil and PCB are connected by alternating layers to form a four-fold alternating combination structure.
It reduced costs by 40%, improved heat dissipation and operating efficiency, reduced eddy current losses, and improved product consistency and applicability.
Smart Images
Figure CN224203919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of transformers, specifically a copper-clad aluminum high-current output planar transformer. Background Technology
[0002] High-power power transformers typically have high secondary currents, exceeding 100A. To handle such large currents, most high-power transformers on the market currently use copper feet or additional lead terminals to connect to the circuit at their secondary output terminals. This method is costly and complex, making it difficult to promote and apply on a large scale.
[0003] Therefore, in view of the above situation, there is an urgent need to provide a copper-clad aluminum high-current output planar transformer to overcome the shortcomings in current practical applications. Utility Model Content
[0004] The purpose of this invention is to provide a copper-clad aluminum high-current output planar transformer, which aims to solve the problems mentioned in the background art.
[0005] This utility model is implemented as follows: a copper-clad aluminum high-current output planar transformer includes: a magnetic core and a base embedded in the magnetic core. The magnetic core also contains a coil and a PCB, and the base is provided with an output component connected to the PCB.
[0006] As a further embodiment of this invention, the coil is exposed and in direct contact with the air.
[0007] As a further embodiment of this utility model, the output component adopts two rows of copper-clad aluminum feet.
[0008] As a further embodiment of this utility model: the inner row of the two rows of copper-clad aluminum feet is straight, and the outer row is bent. A shunt connection is used to achieve high current output. The use of copper-clad aluminum feet reduces the overall cost of the product by 40% compared to copper feet. The use of two rows of copper-clad aluminum feet at the secondary output end to achieve shunt can effectively reduce eddy current losses.
[0009] As a further embodiment of this utility model: the coil and the PCB are connected by an alternating stacking method to form a four-fold alternating combination structure. The alternating four-fold combination of the coil and the PCB strengthens the coupling between the primary and secondary windings and improves the product's working efficiency.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. Low cost: Using copper-clad aluminum feet, the overall product cost is 40% lower than that of copper feet;
[0012] 2. Excellent heat dissipation: The bottom adopts a suspended design and the coil is in direct contact with the air, which facilitates heat dissipation;
[0013] 3. Low eddy current loss: The secondary output terminal adopts two rows of copper-clad aluminum pins to achieve current shunting, which effectively reduces eddy current loss;
[0014] 4. Good product consistency: The simple materials used and easy assembly can greatly reduce the large fluctuations in product performance caused by inconsistencies in materials and manual operation;
[0015] 5. High product efficiency: The coil and PCB are combined in four alternating cycles to strengthen the coupling between the primary and secondary windings and improve product efficiency.
[0016] 6. Wide range of product applications: The output end adopts two rows of copper-clad aluminum pins, with the inner row being straight pins and the outer row being bent pins, using a shunt connection to achieve high current output. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] In the attached diagram: 1-base, 2-magnetic core, 3-coil, 4-PCB, 5-output component. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] The present invention will be further explained below with reference to specific embodiments.
[0024] Please see Figure 1 This utility model provides a copper-clad aluminum high-current output planar transformer, which includes a magnetic core 2 and a base 1 embedded in the magnetic core 2. The magnetic core 2 also has a coil 3 and a PCB 4, and the base 1 has an output component 5 connected to the PCB 4.
[0025] In the embodiments of this utility model, the base 1 adopts an embedded bottom suspension design to make its structure sturdy and well-ventilated.
[0026] In one embodiment of this utility model, please refer to Figure 1 The coil 3 is exposed and in direct contact with the air; the bottom adopts a suspended design and the coil is in direct contact with the air, which facilitates heat dissipation;
[0027] The output component 5 uses two rows of copper-clad aluminum feet;
[0028] The inner row of the two rows of copper-clad aluminum feet is straight, while the outer row is bent. A shunt connection is used to achieve high current output.
[0029] In this embodiment, copper-clad aluminum feet are used, and the overall product cost is 40% lower than that of copper feet. The secondary output end uses two rows of copper-clad aluminum feet to achieve current shunting, which can effectively reduce eddy current losses.
[0030] In one embodiment of this utility model, please refer to Figure 1 The coil 3 and PCB4 are connected by alternating stacking to form a four-alternating combination structure.
[0031] In this embodiment, the coil 3 and PCB4 are combined in four alternating cycles to strengthen the coupling between the primary and secondary windings and improve the product's working efficiency.
[0032] In summary, this utility model uses copper-clad aluminum feet, resulting in an overall product cost that is 40% lower than that of copper feet. It also offers good heat dissipation: the bottom features a suspended design, and the coil is in direct contact with the air, facilitating heat dissipation. Furthermore, it has low eddy current loss: the secondary output end uses two rows of copper-clad aluminum feet to achieve current shunting, effectively reducing eddy current loss. Finally, it boasts good product consistency: the simple materials used and easy assembly greatly reduce the large fluctuations in product performance caused by inconsistencies in materials and manual operation.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A copper-clad aluminum high-current output planar transformer, comprising a magnetic core (2) and a base (1) embedded within the magnetic core (2), characterized in that, The magnetic core (2) is also provided with a coil (3) and a PCB (4), and the base (1) is provided with an output component (5) connected to the PCB (4).
2. The copper-clad aluminum high-current output planar transformer according to claim 1, characterized in that, The coil (3) is exposed and in direct contact with the air.
3. The copper-clad aluminum high-current output planar transformer according to claim 1, characterized in that, The output component (5) adopts two rows of copper-clad aluminum feet.
4. The copper-clad aluminum high-current output planar transformer according to claim 3, characterized in that, The inner row of the two rows of copper-clad aluminum feet is straight, while the outer row is curved.
5. The copper-clad aluminum high-current output planar transformer according to claim 1, characterized in that, The coil (3) and PCB (4) are connected by alternating stacking to form a four-fold alternating combination structure.