CN217983025U

CN217983025U - Light and thin high-frequency transformer framework

Info

Publication number: CN217983025U
Application number: CN202220942570.2U
Authority: CN
Inventors: 蔡景生
Original assignee: Dongguan Shoubang Electronics Co ltd
Current assignee: Dongguan Shoubang Electronics Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-12-06
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a frivolous high frequency transformer skeleton, including main part and the terminal of setting in the main part, the main part includes horizontal part, sets up the support section at both ends about horizontal part, and horizontal part erects on the support section, and horizontal part is equipped with the iron core and inserts and establish the chamber, and the terminal setting is on the support section. The iron core is inserted into the iron core insertion cavity, the coil is wound on the periphery of the horizontal part, the horizontal part is supported by the pair of supporting parts, the supporting parts enable the horizontal part to be emptied to provide space for the coil wound on the horizontal part, and the pair of supporting parts are installed on the circuit board.

Description

Light and thin high-frequency transformer framework

Technical Field

The utility model relates to a small-size electronic product, concretely relates to transformer.

Background

A transformer is a device for transforming ac voltage, current and impedance, and when an ac current flows through a primary winding, an ac magnetic flux is generated in an iron core (or a magnetic core), so that a voltage (or a current) is induced in a secondary winding. The transformer consists of a framework, an iron core (or a magnetic core) and a coil, wherein the iron core is arranged on the framework, the coil is provided with two or more than two windings, the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils.

The high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency (10 kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine.

With the trend of light and thin electronic products, the transformers tend to be more miniaturized. On the premise of having basic functions of voltage transformation and heat dissipation, the volume and the shape of the small transformer need to meet the installation space of an electronic product where the small transformer is located.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: a miniaturized high-frequency transformer.

In order to solve the technical problem, the utility model provides a following technical scheme: frivolous high frequency transformer skeleton includes the main part and sets up the terminal in the main part, and the main part includes horizontal part, sets up the support portion at horizontal part left and right ends, and horizontal part erects on the support portion, and horizontal part is equipped with the iron core and inserts and establish the chamber, and the terminal setting is on the support portion.

The iron core is inserted into the iron core insertion cavity, the primary coil and the secondary coil are wound on the periphery of the horizontal part, and the primary coil winding groove and the secondary coil winding groove are not arranged respectively, so that the miniaturization of the transformer is facilitated.

The horizontal part is the form of lying down, is supported by a pair of supporting part, and the supporting part makes the horizontal part empty, provides the space for the coil of winding on the horizontal part, and a pair of supporting part is installed on the circuit board, so design, and skeleton texture is compact, does benefit to the deformer miniaturization.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic diagram of a light, thin and high frequency transformer bobbin;

FIG. 2 is a schematic view of another perspective of a light, thin and high frequency transformer bobbin;

FIG. 3 is a front view of a light thin high frequency transformer bobbin;

FIG. 4 is a left side view of a light thin high frequency transformer bobbin;

FIG. 5 is a bottom view of a lightweight high frequency transformer bobbin;

fig. 6 is a top view of a light, thin, high frequency transformer bobbin.

The symbols in the figures illustrate:

10. a main body; 11. a horizontal portion; 112. a middle section; 113. protecting the wall; 12. a support portion; 120. a wire passing groove; 121. a transition slope; 13. the iron core is inserted into the cavity;

20. and a terminal.

Detailed Description

Referring to fig. 1 and 2, the light and thin high-frequency transformer framework comprises a main body 10 and terminals 20 arranged on the main body, wherein the main body comprises a horizontal part 11 and support parts 12 arranged at the left end and the right end of the horizontal part, the horizontal part is erected on the support parts, the horizontal part is provided with an iron core insertion cavity 13, and the terminals are arranged on the support parts.

The iron core is inserted into the iron core insertion cavity 13, the primary coil and the secondary coil are wound on the periphery of the horizontal part 11, the primary coil is located on the left side of the horizontal part, the leading-out end of the primary coil is connected with the terminal on the left supporting part, the secondary coil is located on the right side of the horizontal part, and the leading-out end of the secondary coil is connected with the terminal on the right supporting part.

The lying part 11 includes a middle section 112 and guard walls 113 provided at left and right ends of the middle section, and the support part 12 is connected to the guard walls. The pair of protective walls limit the wound coil. The supporting part is connected with the protective wall to empty the middle section, and the coil has enough space to be wound on the middle section. The pair of supporting parts are mounted on the circuit board, and the bottom of the coil wound on the middle section is close to the circuit board, so that the framework is compact in structure and beneficial to miniaturization of the transformer.

The bottom of the support portion 12 is provided with a wire passage slot 120 for providing a passage for the coil terminal to be connected to the terminal 20 of the support portion 12. The wire passing groove 120 is provided with a transition slope 121, and the transition slope is connected with the middle section 112 and the wire passing groove, so that the coil leading-out end enters the wire passing groove through the transition slope and then is connected with an external terminal 20 through the wire passing groove.

The terminal 20 is bent, and the height of each part is different, and the bottommost part of the terminal is flush with the bottom surface of the supporting part 12, so that the bottom surface of the supporting part and the bottommost part of the terminal are simultaneously contacted with the circuit board, and the connection of the terminal and the connecting end on the circuit board, such as welding, is facilitated.

The body 10 is integrally formed, for example, by injection molding. The terminal 20 may be embedded in a mold in advance, and after injection molding, the body and the terminal are molded into a complete frame.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, changes may be made in the detailed description and the application scope according to the idea of the present invention, and the description should not be construed as limiting the invention.

Claims

1. Frivolous high frequency transformer skeleton includes main part (10) and terminal (20) of setting in the main part, its characterized in that: the main body comprises a horizontal part (11) and support parts (12) arranged at the left end and the right end of the horizontal part, the horizontal part is erected on the support parts, the horizontal part is provided with an iron core inserting cavity (13), and the terminals are arranged on the support parts.

2. The lightweight thin high frequency transformer bobbin of claim 1 wherein: the horizontal part (11) comprises a middle section (112) and guard walls (113) arranged at the left end and the right end of the middle section, and the supporting part (12) is connected with the guard walls.

3. The lightweight thin high frequency transformer bobbin of claim 2 wherein: the bottom of the supporting part (12) is provided with a wire passing groove (120).

4. The lightweight thin high frequency transformer bobbin of claim 3 wherein: the wire passing groove (120) is provided with a transition slope (121), and the transition slope is connected with the middle section (112) and the wire passing groove.

5. The lightweight thin high frequency transformer bobbin of claim 1 wherein: the terminal (20) is bent, and the bottommost part of the terminal is flush with the bottom surface of the supporting part (12).

6. The lightweight thin high frequency transformer bobbin of claim 1, wherein: the main body (10) is integrally formed.