Small high-efficiency power transformer

Abstract

The utility model discloses a small -size high -efficiency power transformer, including wire frame and core and winding coil on wire frame, and the core passes wire frame, and wire frame is flat, and flat wire frame is vertical, and the bottom of wire frame is equipped with base, and the bottom of base sets up terminal, the core cooperation is on base, and the width of core is equal to the width of base. The whole transformer flat square shape, and the core surrounds wire frame, and the outer facade of core is flush with the outer facade of base, and thus, the whole transformer surface is neat, and the structure is compact, and it is beneficial to the miniaturization of transformer, and it saves assembly space.

Description

Technical Field

[0001] This utility model relates to the field of transformers, specifically to power transformers. Background Technology

[0002] Power transformers are used in almost all electronic products, and their principle is simple. However, depending on the application or purpose, the winding process of a transformer will have different requirements. The main functions of a transformer are: voltage transformation; impedance transformation; isolation; and voltage stabilization. The commonly used core shapes for transformers are generally E-type and C-type cores. Utility Model Content

[0003] The technical problem solved by this utility model is to miniaturize the power transformer, which helps to save assembly space.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a small high-efficiency power transformer, including a wire frame and an iron core, and a coil wound on the wire frame. The iron core passes through the wire frame, the wire frame is flat, the flat wire frame is vertical, a base is provided at the bottom of the wire frame, and a terminal is provided at the bottom of the base. The iron core is fitted on the base, and the width of the iron core is equal to the width of the base.

[0005] According to the above technical solution, the entire transformer has a flat square shape, with the iron core surrounding the wire frame. The outer surface of the iron core is flush with the outer surface of the base. In this way, the surface of the entire transformer is smooth and the structure is compact, which is conducive to the miniaturization of the transformer and saves assembly space.

[0006] The transformer frame and base are integrally formed, and a limiting platform is provided at the connection between the base and the frame. The iron core fits onto the limiting platform. That is, while the iron core is engaged with the frame, it presses against the limiting platform, thus stabilizing the transformer structure.

[0007] The wire frame includes a left limiting edge and a right limiting edge, and the base includes a left base and a right base. The left limiting edge and the left base are integrally formed, and the right limiting edge and the right base are integrally formed. The coil is located between the left limiting edge and the right limiting edge, and also between the left base and the right base. This design ensures that the wire harness is not interfered with during coil winding, and also facilitates coil heat dissipation after the coil is wound.

[0008] Both the left and right bases are arched, and airflow enters the coil through the arched structure to dissipate heat from the coil.

[0009] The core consists of a left-side E-shaped core and a right-side E-shaped core. The left-side E-shaped core and the right-side E-shaped core are joined on the left and right sides of the coil frame. The core is open from top to bottom, forming a vertical airflow. The arched structure of the left and right bases forms a horizontal airflow. The vertical and horizontal airflows converge, which is beneficial for the ventilation and heat dissipation of the coil. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] Figure 1 A schematic diagram of a small, high-efficiency power transformer;

[0012] Figure 2 An exploded view of a small, high-efficiency power transformer;

[0013] Figure 3 This is the front view of wire frame 10;

[0014] Figure 4 for Figure 3 The right view;

[0015] Figure 5 for Figure 3 Top view.

[0016] Explanation of symbols in the diagram:

[0017] 10. Cable tray; 11. Left limiting edge; 12. Right limiting edge;

[0018] 20. Iron core; 21. Left E-shaped iron core; 22. Right E-shaped iron core;

[0019] 30. Base; 31. Terminal; 32. Limiting platform; 33. Left base; 34. Right base;

[0020] 40. Adhesive tape. Detailed Implementation

[0021] Combination Figure 1 , Figure 2 A small, high-efficiency power transformer includes a wire frame 10 and an iron core 20, as well as a coil wound on the wire frame. The iron core passes through the wire frame, which is flat and upright. A base 30 is provided at the bottom of the wire frame, and a terminal 31 is provided at the bottom of the base. The iron core is fitted on the base, and the width of the iron core is equal to the width of the base.

[0022] The wire frame 10 and the base 30 are integrally formed. A limiting platform 32 is provided at the connection between the base and the wire frame, and the iron core is fitted on the limiting platform.

[0023] The wire frame 10 includes a left limiting edge 11 and a right limiting edge 12, and the base 30 includes a left base 33 and a right base 34. The left limiting edge is integrally formed with the left base, and the right limiting edge is integrally formed with the right base. The coil is located between the left limiting edge and the right limiting edge, and between the left base and the right base.

[0024] Both the left base 33 and the right base 34 are arched.

[0025] The iron core includes a left-side E-shaped iron core 21 and a right-side E-shaped iron core 22. The left-side and right-side E-shaped iron cores are joined on the left and right sides of the frame 10, and the iron core is open at the top and bottom. The iron core 20 is wrapped with tape 40.

[0026] The entire transformer has a flat, square shape, with the iron core 20 surrounding the wire frame 10. The outer surface of the iron core is flush with the outer surface of the base, thus making the entire transformer surface smooth and the structure compact.

[0027] When the coil is wound, the wire harness is not interfered with by the bases 30 which are set separately on the left and right sides. Moreover, after the coil is wound and formed, it is conducive to heat dissipation of the coil.

[0028] The iron core 20 is open at both ends, forming a vertical airflow. The arched structure of the left base 33 and the right base 34 forms a horizontal airflow. The vertical airflow and the horizontal airflow converge, which is conducive to the ventilation and heat dissipation of the coil.

[0029] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

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