CN101651011A

CN101651011A - SMD transformer

Info

Publication number: CN101651011A
Application number: CN200910183057A
Authority: CN
Inventors: 张德峰; 贾兴虎; 潘胜峰; 杨俊�
Original assignee: JIANGSU LETTALL ELECTRONIC CO Ltd
Current assignee: JIANGSU LETTALL ELECTRONIC CO Ltd
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-02-17

Abstract

The invention discloses an SMD transformer which comprises a shell and a framework arranged in the shell, wherein the shell is a semi-closed structure with an open bottom; a winding is wound in a wirecasing which is formed outside the framework; and the bottom of the shell is provided with a bottom plate cover. The shell and the bottom plate cover adopt a plug-in connection structure which comprises a tenon arranged at the edge of the shell and a mortise which is arranged on the bottom plate cover and corresponds to the tenon. In the invention, a conventional structure of the shell and the framework is improved into the structure of the shell, the framework and the bottom plate cover, thus the invention not only cancels a spot gluing process which is complicated and not easy to control, but also effectively protects all transformer fine wires comprising lead-in wires, lead-out wires and normal wound wires.

Description

A kind of SMD transformer

Technical field

The present invention relates to a kind of SMD transformer, specifically is the many windings high pressure SMD transformer that is adopted on a kind of LCD TV.

Background technology

At present, the structure that the INVERTER SMD transformer often uses adds the structure of skeleton as shell, the skeleton bottom is exposed to outer in this structure, hinder or broken string for preventing the high pressure fine line loss in the winding, existing method is the exposed high pressure fine rule in skeleton bottom to be adopted the method for some silica gel, utilize silica gel that high pressure fine rule part is protected, but gluing process has following difficult point: 1, during point glue, the Glue dripping head scratch that easily will go between; 2, the operation of gluing process is more numerous and diverse, is difficult for management and control; 3, gluing process can only be with lead-out wire and the protection of leading in point glue, and the zone that normally winds the line is difficult to realize all put the glue protection; 4, be easy to generate the body bad order, product is not attractive in appearance.

Summary of the invention

The novel technical problem to be solved of the present invention provides the better SMD transformer of a kind of barrier propterty, and this SMD transformer need not to adopt gluing process, has avoided gluing process may influence the problem of product quality.

For achieving the above object, SMD transformer of the present invention comprises shell and installation skeleton in the enclosure, and shell is the open semi-closed structure in bottom, and winding is wrapped in the outside wire casing that forms of skeleton, is provided with base plate cover at outer casing bottom.

For the ease of installing, increase work efficiency, adopt the socket connection structure between shell and the base plate cover.

Above-mentioned socket connection structure preferably adopts the joggle form, and it comprises the mortise corresponding with tenon on the tenon that is arranged on shell edge and the base plate cover.

Constant for guaranteeing overall dimension, further improvement of the present invention is to be provided with recessed mouthful in the shell both sides, and tenon is arranged on this recessed porch.And be provided with circular-arc otch in tenon root both sides, be used to strengthen the intensity and the elasticity of wedge mouth.

Further improve as of the present invention, be arranged with some positioning boss in the skeleton bottom, corresponding positioning boss is provided with location hole on the base plate cover surface.

The present invention is improved as the structure of shell+skeleton+base plate cover with the structure of traditional shell+skeleton, can cancel numerous and diverse and is difficult for the gluing process of management and control, and whole to transformer again fine rules comprises that lead-in, lead-out wire and normal coiling zone implement to imitate protection.Simultaneously,, adopted the shell both sides recessed, linked to each other with bottom cover plate at mortise structure of depression increase for realizing combining closely and don't influencing the overall dimension and the appearance looks elegant degree of product of base plate cover and shell.

Description of drawings

Fig. 1 is an assembled state schematic diagram of the present invention;

Fig. 2 is Figure 1A-A place partial enlarged drawing;

Fig. 3 is the schematic diagram after the present invention makes up

Embodiment

As shown in figures 1 and 3, SMD transformer of the present invention mainly comprises shell 1 and installation skeleton 2 in the enclosure, and shell 1 is the open semi-closed structure in bottom, winding 7 is wrapped in the skeleton 2 outside wire casings that form, and is plugged with base plate cover 3 in shell 1 bottom.

This socket connection structure such as Fig. 2: be provided with recessed mouthful 6 in shell 1 both sides, tenon 4 is arranged on recessed mouthful 6 places, is provided with mortise 7 with the tenon corresponding position on base plate cover 3.Be provided with circular-arc otch 5 in tenon 4 root both sides, this circular-arc otch 5 has strengthened the intensity and the elasticity of wedge mouth 4, has improved the reliability of connected structure.

Be provided with some positioning boss 8 in skeleton 2 bottoms along bilateral symmetry, be provided with location hole 9 at base plate cover 3 surperficial corresponding positioning boss, the positioning action to base plate cover 3 has been played in both cooperations, shell 1 is better combined, the also easier operation of technology with base plate cover 3.

The invention provides a kind of thinking and implementation method of permanent protective property SMD transformer; concrete application approach is a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.

Claims

1, a kind of SMD transformer, it comprises shell (1) and installation skeleton (2) in the enclosure, shell (1) is the open semi-closed structure in bottom, and winding (7) is wrapped in the outside wire casing that forms of skeleton (2), it is characterized in that: be provided with base plate cover (3) in shell (1) bottom.

2, SMD transformer according to claim 1 is characterized in that: adopt the socket connection structure between described shell (1) and base plate cover (3).

3, SMD transformer according to claim 2 is characterized in that: described socket connection structure comprises tenon (4) and the last mortise (7) corresponding with tenon of base plate cover (3) that is arranged on shell edge.

4, SMD transformer according to claim 3 is characterized in that: be provided with recessed mouthful (6) in described shell (1) both sides, tenon (4) is arranged on recessed mouthful (6) and locates.

5, according to claim 3 or 4 described SMD transformers, it is characterized in that: be provided with circular-arc otch (5) in tenon (4) root both sides.

6, according to any described SMD transformer among the claim 1-4, it is characterized in that: be arranged with some positioning boss (8) in skeleton (2) bottom, be provided with location hole (9) at the surperficial corresponding positioning boss of base plate cover (3).