CN212782930U

CN212782930U - Flat transformer

Info

Publication number: CN212782930U
Application number: CN202021513803.4U
Authority: CN
Inventors: 李胜
Original assignee: Shoubang Electronics Suzhou Co ltd
Current assignee: Shoubang Electronics Suzhou Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-23
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a flat transformer, which comprises a base frame, a bottom frame arranged on the base frame, a top frame arranged on the bottom frame, and a coil arranged between the bottom frame and the top frame, wherein the base frame is provided with a terminal connected with a leading-out end of the coil; bed frame, chassis and roof-rack all become the platykurtic, and the bed frame is equipped with first sunk structure, and the chassis cooperation is in first sunk structure, and the chassis is equipped with second sunk structure, and second sunk structure is used for holding the coil, and the roof-rack lid closes at the top of chassis and is connected with the top of bed frame. Flat form transformer is adapted to flat form installation space of flat electronic product, notebook computer, TV set for example also can vacate the space for other electronic components's installation.

Description

Flat transformer

Technical Field

The utility model relates to an electronic product, concretely relates to transformer.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). A transformer applied to electronic products belongs to a small transformer. Such as transformers in televisions, displays. 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 size and shape of the miniature transformer need to meet the installation space of the electronic product in which the miniature transformer is arranged.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that: the small-sized transformer is adapted to a flat installation space.

In order to solve the technical problem, the utility model provides a following technical scheme: a flat transformer comprises a base frame, an underframe arranged on the base frame, a top frame arranged on the underframe, and a coil arranged between the underframe and the top frame, wherein the base frame is provided with a terminal connected with a leading-out end of the coil; bed frame, chassis and roof-rack all become the platykurtic, and the bed frame is equipped with first sunk structure, and the chassis cooperation is in first sunk structure, and the chassis is equipped with second sunk structure, and second sunk structure is used for holding the coil, and the roof-rack lid closes at the top of chassis and is connected with the top of bed frame.

The coil includes primary coil and secondary coil, and primary coil is equipped with two and draws forth the end, and secondary coil is equipped with two and draws forth the end, is equipped with four terminals on the bed frame, draws forth the end with four respectively and is connected.

The base frame, the bottom frame and the top frame are all flat, so that the whole transformer is flat.

The flat underframe is matched in the first concave structure of the base frame, so that the whole transformer is more flat.

The coil is arranged in the second concave structure of the bottom frame, so that the whole transformer is more flat.

When the top frame covers the second concave structure of the bottom frame, the top frame is connected with the top of the base frame, and the flat degree of the whole transformer can be seen.

Flat form transformer is adapted to flat form installation space of flat electronic product, notebook computer, TV set for example also can vacate the space for other electronic components's installation.

Drawings

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

fig. 1 is a schematic view of a flat transformer according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic view of the top frame 30 viewed from below in fig. 2.

The symbols in the drawings illustrate that:

10. a base frame; 11. a terminal; 12. a first recess structure; 13. a second lead abdication notch;

20. a chassis; 21. a second recessed structure; 22. a first wire column; 23. material saving gaps;

30. a top frame; 31. a third recessed structure; 32. a second wire column; 33. a first lead abdication notch; 34. a heat dissipation gap.

Detailed Description

Referring to fig. 1 and 2, a flat transformer includes a base frame 10, a bottom frame 20 mounted on the base frame, a top frame 30 mounted on the bottom frame, and a coil disposed between the bottom frame and the top frame, wherein the base frame is provided with a terminal 11 connected to a leading-out end of the coil; bed frame, chassis and roof-rack all become the platykurtic, and the bed frame is equipped with first sunk structure 12, and the chassis cooperation is equipped with second sunk structure 21 in first sunk structure, and second sunk structure is used for holding the coil, and the roof-rack lid closes at the top of chassis and is connected with the top of bed frame.

In actual installation, the chassis 20 is fitted in the first recessed structure 12, the whole coil or a part of the coil is accommodated in the second recessed structure 21, and four leading ends of the primary coil and the secondary coil in the coil are led out of the second recessed structure and are respectively connected with the four terminals 11 on the base frame 10. The top frame 30 is then closed over the bottom frame 20 and attached to the top of the base frame 10 by glue.

Alternatively, as shown in fig. 3, the top frame 30 is provided with a third recess structure 31, which can accommodate the secondary coil and the second recess structure 21 can accommodate the primary coil, so that the whole transformer can be made more flat.

Be equipped with first terminal 22 in the second sunk structure 21, be equipped with second terminal 32 in the third sunk structure, first terminal offsets with the second terminal, and the coil cover is established on first terminal and second terminal. In the process of installing the transformer, an operator sleeves a primary wire which is wound in advance on the first wire column 22, and then fits the underframe 20 in the first concave structure 12; the operator places the secondary coil around the second wire post 32 and then closes the top frame 30 to the bottom frame 20. Thus, the installation is convenient. The first and

second wire poles

22 and 32 correspond to a core in the related art. The abutting ends of the first wire column and the second wire column can be connected by glue.

As shown in fig. 3, a first wire relief notch 33 is formed on a side wall of the third recess structure 31 for a coil leading-out terminal to pass through. Specifically, the number of the first wire abdicating notches 33 is two, the first wire abdicating notches are arranged in a front-back mode, and two coil leading-out ends are led out of each first wire abdicating notch. Correspondingly, four terminals 11 are distributed at four corners of the base frame 10, so as to be conveniently connected with four coil leading-out ends. The two first wires are through front and back in the gap 33, and have the functions of ventilation and heat dissipation.

In order to make the whole transformer more flat, the sidewall of the first concave structure 12 is provided with a second wire abdicating notch 13 aligned with the first wire abdicating notch 33 up and down. The two second wire abdicating notches are aligned with the two first wire abdicating notches in a one-to-one mode.

As shown in fig. 3, the side wall of the third recess structure 31 is provided with heat dissipation notches 34, a plurality of heat dissipation notches are arranged on the left and right sides of the top frame 30, and the transformer has heat dissipation channels all around, in addition to the first lead abdicating notches 33 on the front and rear sides.

The side wall of the second concave structure 21 is provided with a material saving gap 23, and the material saving gap is positioned in the first concave structure 12. The material-saving gap is used for saving materials and lightening the underframe 20. The number of the material saving gaps 23 is a pair and is arranged on the left side and the right side of the underframe respectively. Thus, only the front and rear sections of the side wall of the second recess structure 21 are left for supporting the top chassis 30. Since the bottom chassis 20 is located in the first recess structure 12, the periphery of the coil in the second recess structure 21 may be supported by the sidewall of the first recess structure 12.

The first recessed structure 12, the bottom frame 20 and the top frame 30 are all polygonal, in particular octagonal, so that the assembly is convenient. As an improvement, the bottom of the first concave structure 12 is hollow, and the transformer has the functions of light weight and heat dissipation.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A flat transformer comprises a base frame (10), a bottom frame (20) arranged on the base frame, a top frame (30) arranged on the bottom frame, and a coil arranged between the bottom frame and the top frame, wherein the base frame is provided with a terminal (11) connected with a leading-out end of the coil; the method is characterized in that: bed frame, chassis and roof-rack all become the platykurtic, and the bed frame is equipped with first sunk structure (12), and the chassis cooperation is equipped with second sunk structure (21) in first sunk structure, and second sunk structure is used for holding the coil, and the roof-rack lid closes at the top of chassis and is connected with the top of bed frame.

2. The flat transformer of claim 1, wherein: be equipped with first terminal (22) in second sunk structure (21), roof-rack (30) are equipped with third sunk structure (31), are equipped with second terminal (32) in the third sunk structure, and first terminal offsets with the second terminal, and the coil cover is established on first terminal and second terminal.

3. The flat transformer according to claim 2, wherein: the side wall of the third concave structure (31) is provided with a first lead abdicating notch (33) for the coil leading-out end to pass through.

4. The flat transformer according to claim 2, wherein: and a heat dissipation notch (34) is arranged on the side wall of the third concave structure (31).

5. A flat transformer according to claim 3, characterized in that: and a second wire yielding notch (13) is arranged on the side wall of the first sunken structure (12), and the first wire yielding notch (33) is vertically aligned with the second wire yielding notch.

6. The flat transformer of claim 1, wherein: the side wall of the second concave structure (21) is provided with a material saving notch (23), and the material saving notch is positioned in the first concave structure (12).

7. The flat transformer of claim 1, wherein: the first concave structure (12), the bottom frame (20) and the top frame (30) are all polygonal.