CN211294843U

CN211294843U - High-current high-efficiency buckle type transformer structure

Info

Publication number: CN211294843U
Application number: CN202020025675.2U
Authority: CN
Inventors: 高应存; 傅翼; 杨胜麒
Original assignee: Shanghai Meixing Electronic Co ltd
Current assignee: Shanghai Meixing Electronic Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-08-18
Anticipated expiration: 2030-01-07

Abstract

High-efficient buckle formula transformer structure of heavy current includes: the magnetic core comprises a shell, a framework mechanism and a magnetic core, wherein the shell is connected with the framework mechanism and the upper part of the magnetic core. Wherein, skeleton mechanism includes: first skeleton, second skeleton, buckle, PIN foot, vice limit lead-out wire and middle recess. Compared with the prior art, the utility model, through addding double flute recess skeleton and buckle formula structure, can satisfy the requirement of conventional electrical properties and ann rule distance, can realize low pressure heavy current output again, the drawing forth of vice limit big line footpath, its effective diameter is more than 2.5 mm.

Description

High-current high-efficiency buckle type transformer structure

Technical Field

The utility model relates to a transformer structure, concretely relates to high-efficient buckle formula transformer structure of heavy current.

Background

Two common industrial power supply circuit structures are provided, one is a FLYBACK (FLYBACK) power supply working mode, and the FLYBACK industrial power supply has the advantages of small leakage inductance of a transformer, small loss and high efficiency; the disadvantages are as follows: because a sandwich coil structure is needed to reduce leakage inductance, a retaining wall adhesive tape is needed to be added or three layers of insulating wires are used on a secondary side to meet the safety requirements, the cost is high, the product power is limited, and the maximum power can only be about 150W generally; and the transformer adopted by the LLC power supply working mode uses a slot-separating structure to separately wind the original secondary side, so that the process is simple, the cost is low, and the design and the manufacture of a high-power transformer are easy to realize.

The conventional transformer winding is wound on a framework PIN and then mounted on a PCB for application after soldering, or the output adopts a flying wire mode, but the conventional transformer winding occupies a large space of the PCB and has a complex process; however, for the low-voltage high-power (over 300W) LLC transformer, because the effective diameter of the output reaches over 2.5mm, and the maximum diameter of the framework PIN size is about 1.2mm, the 2.5mm winding wire cannot be wound on the PIN at all; in order to solve the process bottleneck, a buckle type transformer structure is urgently needed to be designed and developed to realize the leading-out of the extra-thick winding wire of the low-voltage high-power transformer.

In order to solve the above problems, we have made a series of improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient buckle formula transformer structure of heavy current to overcome the above-mentioned shortcoming and not enough that prior art exists.

High-efficient buckle formula transformer structure of heavy current includes: the shell is connected with the framework mechanism and the upper part of the magnetic core;

wherein, the skeleton mechanism includes: first skeleton, second skeleton, buckle, PIN foot, vice limit lead-out wire and middle recess, first skeleton is connected on the left of the magnetic core, the second skeleton is connected on the right of the magnetic core, the buckle is connected with first skeleton downside, the PIN foot is connected with first skeleton, vice limit lead-out wire and second skeleton connection, middle recess is located between first skeleton and the second skeleton.

Further, a primary side and a secondary side are arranged on the magnetic core, the primary side is arranged on the left side of the magnetic core, the secondary side is arranged on the right side of the magnetic core, and the secondary side is connected with a secondary side outgoing line.

The utility model has the advantages that:

compared with the prior art, the utility model, through addding double flute recess skeleton and buckle formula structure, can satisfy the requirement of conventional electrical properties and ann rule distance, can realize low pressure heavy current output again, the drawing forth of vice limit big line footpath, its effective diameter is more than 2.5 mm.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a side view of the present invention.

Reference numerals:

the shell 100, the framework mechanism 200, the first framework 210, the second framework 220, the buckle 230, the PIN 240, the secondary side lead wire 250 and the middle groove 260.

A magnetic core 300, a primary side 310, and a secondary side 320.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a bottom view of the present invention. Fig. 3 is a side view of the present invention.

As shown in fig. 1-3, the high-efficient buckle formula transformer structure of heavy current includes: the magnetic core comprises a shell 100, a framework mechanism 200 and a magnetic core 300, wherein the shell 100 is connected with the upper parts of the framework mechanism 200 and the magnetic core 300;

wherein, skeleton mechanism 200 includes: first skeleton 210, second skeleton 220, buckle 230, PIN foot 240, vice limit lead wire 250 and middle recess 260, first skeleton 210 is connected with magnetic core 300 left side, and second skeleton 220 is connected with magnetic core 300 right side, and buckle 230 is connected with first skeleton 210 downside, and PIN foot 240 is connected with first skeleton 210, and vice limit lead wire 250 is connected with second skeleton 220, and middle recess 260 is located between first skeleton 210 and second skeleton 220.

The magnetic core 300 is provided with a primary side 310 and a secondary side 320, the primary side 310 is arranged at the left side of the magnetic core 300, the secondary side 320 is arranged at the right side of the magnetic core 300, and the secondary side 320 is connected with the secondary side outgoing line 250.

The working principle of the utility model is that the framework is designed into a double-groove middle groove structure, after the winding of the primary side 310 is completed, the primary side 310 and the middle groove 260 are all covered by the shell 100, the creepage distance can meet more than 12mm through the safety regulation of the optimized design, the secondary side output framework of the transformer is designed into a PIN-free structure, the winding leading-out position of the secondary side 320 is positioned, the extra-thick secondary side winding wire is directly led out from the corresponding position at the bottom of the framework mechanism 200, and each output line is locked by using a special lock catch, so that the reliable strength of the outgoing line is achieved, the positioning is accurate, and the installation of the product on a PCB board is facilitated; the safety structure and the selection of the insulating material can meet the UL requirement and the temperature condition of 150 degrees. The utility model discloses an add double flute recess skeleton and buckle formula structure, can satisfy conventional electrical property and ann rule requirement of distance, can realize low pressure heavy current output again, drawing forth of vice limit big line footpath, its effective diameter is more than 2.5 mm.

The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.

Claims

1. High-efficient buckle formula transformer structure of heavy current, its characterized in that includes: the magnetic core comprises a shell (100), a skeleton mechanism (200) and a magnetic core (300), wherein the shell (100) is connected with the upper parts of the skeleton mechanism (200) and the magnetic core (300);

wherein the skeleton mechanism (200) comprises: first skeleton (210), second skeleton (220), buckle (230), PIN foot (240), vice limit lead-out wire (250) and middle recess (260), first skeleton (210) is connected with magnetic core (300) left side, second skeleton (220) is connected with magnetic core (300) right side, buckle (230) are connected with first skeleton (210) downside, PIN foot (240) are connected with first skeleton (210), vice limit lead-out wire (250) are connected with second skeleton (220), middle recess (260) are located between first skeleton (210) and second skeleton (220).

2. The high-current high-efficiency snap-in transformer structure of claim 1, wherein: the magnetic core (300) is provided with a primary side (310) and a secondary side (320), the primary side (310) is arranged on the left side of the magnetic core (300), the secondary side (320) is arranged on the right side of the magnetic core (300), and the secondary side (320) is connected with a secondary side outgoing line (250).