CN203368333U

CN203368333U - Integrated transformer

Info

Publication number: CN203368333U
Application number: CN2013204674767U
Authority: CN
Inventors: 魏晋峰
Original assignee: SHENZHEN HIGHLIGHT ELECTRONIC CO Ltd
Current assignee: SHENZHEN HIGHLIGHT ELECTRONIC CO Ltd
Priority date: 2013-08-01
Filing date: 2013-08-01
Publication date: 2013-12-25
Anticipated expiration: 2023-08-01

Abstract

The utility model relates to an integrated transformer. The integrated transformer comprises two independent main transformers, a two-stage filter inductor and a sampling resistor, and the two independent main transformers are in parallel connection. The integrated transformer provided by the utility model improves efficiency and output voltage accuracy, reduces the number of product pins, and improves the overall PCB layout of the product and the utilization rate of space.

Description

A kind of integrated transformer

Technical field

The utility model relates to a kind of integrated transformer, belongs to field of electrical components.

Background technology

Traditional transformer, all mainly that transformer and inductance are separately used, transformer and inductance are inserted into separately in power supply PCB, therefore each device and PCB must have connecting hole, the contact resistance that the pin of transformer and inductance produces when being connected with PCB simultaneously is relatively high, and whole efficiency is difficult to promote.

Therefore, how a kind of raising efficiency is provided and reduces contact resistance, the transformer that improves product Whole PC B layout is technical issues that need to address.

The utility model content

A kind of integrated transformer, described integrated transformer comprises two independently main transformer, two stage filter inductance and sample resistances; Two independently main transformer parallel connections.

Further, described integrated transformer also comprises the assembling base, described two independently main transformer and described two stage filter inductance, sample resistance in same plane.

Further, described main transformer comprises former limit winding and secondary copper sheet, adopts three layer insulation wire to add the copper sheet mode.

Further, the circuit of described inductance is combined after punching press, moulding, welding by two thick copper coins of 1.5mm.

Integrated transformer provided by the utility model, promote efficiency and reduced contact resistance, increase the left and right that sample resistance plays reverse adjustment in product, can better guarantee output voltage stabilization, integrated transformer can improve power supply architecture from the mounting structure change, and power generation configuration and power supply apparatus assembling are optimized greatly.

Main transformer in the utility model adopts three layer insulation wire to add the compound mode of copper sheet, and former-pair-former-former-pair-former compound mode reduces the leakage inductance of main transformer greatly, thereby reduces the product loss.

The accompanying drawing explanation

Describe in more detail exemplary embodiment of the present utility model by the reference accompanying drawing, above and other aspect of the present utility model and advantage will become and more be readily clear of, in the accompanying drawings:

Fig. 1 (a)-(d) is respectively the front view of the utility model main transformer, front view, bottom view and end view.

Fig. 2 (a)-(e) is respectively the top view of the utility model filter inductance, front view, left side view, bottom view and right side view.

Fig. 3 is the utility model integrated transformer schematic diagram.

Embodiment

Hereinafter, now with reference to accompanying drawing, the utility model is described more fully, various embodiment shown in the drawings.Yet the utility model can be implemented in many different forms, and should not be interpreted as being confined to embodiment set forth herein.On the contrary, it will be thorough with completely providing these embodiment to make the disclosure, and scope of the present utility model is conveyed to those skilled in the art fully.

Hereinafter, exemplary embodiment of the present utility model is described with reference to the accompanying drawings in more detail.

Be illustrated in figure 1 the schematic diagram of main transformer.This main transformer comprises former limit winding and secondary copper sheet, and in each integrated transformer, containing 2 main transformers, symmetry is placed, double power stage.

Be illustrated in figure 2 the schematic diagram of filter inductance, the circuit of inductance is combined after punching press, moulding, welding by two thick copper coins of 1.5mm, and overcurrent is large, good heat dissipation, and loss is little.

In the present embodiment, transformer output directly connects the filter inductance input, reduces contact loss, also reduces the PCB circuit-board laying-out, takes full advantage of the effect in space simultaneously.

To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model embodiment.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the utility model embodiment, realization in other embodiments.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

The foregoing is only embodiment of the present utility model, be not limited to the utility model.The utility model can have various suitable changes and variation.All any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model within spirit of the present utility model and principle.

Claims

1. an integrated transformer, it is characterized in that: described integrated transformer comprises two independently main transformer, two stage filter inductance and sample resistances; Two independently main transformer parallel connections.

2. integrated transformer according to claim 1, it is characterized in that: described integrated transformer also comprises the assembling base, described two independently main transformer and described two stage filter inductance, sample resistance in same plane.

3. integrated transformer according to claim 1 and 2, it is characterized in that: described main transformer comprises former limit winding and secondary copper sheet, adopts three layer insulation wire to add the copper sheet mode.

4. integrated transformer according to claim 3, it is characterized in that: the circuit of described inductance is combined after punching press, moulding, welding by two thick copper coins of 1.5mm.