CN202496099U

CN202496099U - Rectifier diode module

Info

Publication number: CN202496099U
Application number: CN201220090540XU
Authority: CN
Inventors: 李云孝; 杨连军
Original assignee: XIAMEN POWER ELECTRONIC TECHNOLOGY CO LTD
Current assignee: XIAMEN POWER ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2012-03-12
Filing date: 2012-03-12
Publication date: 2012-10-17
Anticipated expiration: 2022-03-12

Abstract

The utility model discloses a rectifier diode module. The rectifier diode module is characterized by comprising a plurality of diode units and a printed circuit board, wherein the printed circuit board comprises a substrate and a copper foil wiring attached to one bottom side of the substrate, the copper foil wiring on the substrate has a total anode, a total cathode and multi-section connecting lines, anodes and cathodes of the diode units are equidirectionally fixed in a series circuit which is formed by the total anode, the total cathode and the multi-section connecting lines and has the anode and the cathode which are arranged in a same direction, gaps exist between adjacent diode units, the gaps have corresponding open slots on the printed circuit board, and the printed circuit board and the diode units are integrally covered with insulation materials after connection of the printed circuit board and the diode units. The diode module has good properties of reverse voltage resistance and forward current, and a proper number and proper parameters of the diode units can be designed based on realities such that the diode units have substantially good adaptability. As proper diode units can be selected with great freedom to match with the printed circuit boards, cost and technology are easy to control.

Description

A kind of rectifier diode module

Technical field

The utility model relates to a kind of rectifying device, specifically is a kind of rectifier diode module that is used for the output of microwave oven magnetic power supply.

Background technology

The output rectifying tube of existing microwave oven magnetic driving power is generally a diode (led) module, be characterized in having higher reverse withstand voltage and bigger operating current, and usage space is limited; Cause the specificity of this product high; Process consistency is had relatively high expectations; Just can be produced by minority producer at present, this is unfavorable for controlling the control of whole driving power circuit cost, and is poor for applicability; Possibly design and use new module again to each different application environments, the restriction that middle and lower reaches manufacturer receives is bigger.On the other hand, consider it self electrical characteristic, can not obtain through simple series connection by common diode again.

The utility model content

To the restricted problem of output rectifier diode module of above existing magnetron drive power supply, the utility model proposes a kind of diode (led) module, and its technical scheme is following:

A kind of rectifier diode module, it comprises:

Diode has an anodal and negative pole separately;

One printed circuit board (PCB) comprises a substrate and depends on the wherein Copper Foil cabling of a bottom surface; Said Copper Foil cabling has total anodal, a total negative pole and a multistage connecting line on said substrate; Said diode positive and negative electrodes in same to be fixed in said total positive pole, total negative pole and multistage connecting line constitute positive and negative electrodes in same to series circuit; And said diode is not abutted against has the gap between the person mutually, and said gap correspondence has fluting on said printed circuit board (PCB);

Said printed circuit board (PCB) together with said diode after whole covering insulating material.

Preferred person as the present technique scheme can have the improvement of following aspect:

In one preferred embodiment, become a unit in the same way in the coaxial in twos series connection of the above diode of said printed circuit board (PCB), all said unit in the same way are by radially being arranged in a plane mutually, and alternately reverse linking to each other constitute said series circuit.On this basis, in the preferred embodiment, all said flutings all arrive at the side of said printed circuit board (PCB), and the tortuous shape of arranging of said printed circuit board (PCB) shape and said diode is agreed with.Again on this basis, in the preferred embodiment, said printed circuit board (PCB) has only one side to have said Copper Foil cabling; Said diode all is positioned on this face of said printed circuit board (PCB).

In one preferred embodiment, other has the shell of an insulation, and this shell has an opening; Said shell can ccontaining this rectifier diode module integral body, and said total positive pole is drawn corresponding pin with total negative pole from said opening; Said shell holds the whole of this rectifier diode module and fills said insulating material in it simultaneously.

The beneficial effect that the utility model brings is:

1. this diode (led) module has good reverse withstand voltage and forward current performance, is applicable to the rectification output of magnetron circuit, can design suitable diode number and parameter according to actual conditions, makes whole module have goodish adaptability; Simultaneously, select suitable diode for use owing to have the big degree of freedom, fit printed circuit board, its cost and technology are controlled easily, and applicability is strong.

2. on printed circuit board (PCB); The coaxial in twos series connection of diode becomes a unit in the same way; All in the same way the unit by radially being arranged in same plane mutually; And alternately reverse linking to each other constitutes series circuit, and the processing that this form helps dispelling the heat can make whole module in compact conformation, have maximum heat convection surface;

3. printed circuit board (PCB) has only one side to have the Copper Foil cabling; Diode all is positioned on this face of printed circuit board (PCB), makes to install and fix simply, and its insulation property are handled easily.

4. all flutings all arrive at the side of printed circuit board (PCB); The shape and the tortuous shape of arranging of diode of said printed circuit board (PCB) are agreed with; So expanded diode creepage distance each other to greatest extent; Make insulating material when applying, be infiltrated on the gap of leaning on mutually between the diode more easily simultaneously, improved insulation property.

Description of drawings

Embodiment is described further the utility model below in conjunction with accompanying drawing:

Fig. 1 is the circuit theory diagrams of the utility model one embodiment;

Fig. 2 is the distribution schematic diagram of material object embodiment illustrated in fig. 1 on printed circuit board (PCB);

Fig. 3 is the sketch map that material object embodiment illustrated in fig. 1 is packaged in a shell.

Embodiment

Like Fig. 1, the circuit theory diagrams of the utility model one embodiment; Fig. 2 is the distribution schematic diagram of material object embodiment illustrated in fig. 1 on printed circuit board (PCB); Fig. 3 is the sketch map that material object embodiment illustrated in fig. 1 is packaged in a shell.In conjunction with this three figure present embodiment is described:

This rectifier diode module has the printed circuit board (PCB) 10 of a rectangle form, is arranged with 10 diodes 31 on it; Diode 31 is according to form shown in Figure 1, be connected to positive and negative electrodes in same to series circuit; This series circuit has total anodal 21 and total negative poles 22.On printed circuit board (PCB) 10, total positive pole 21 is positioned at the same side with total negative pole 22, can draw corresponding pin to same direction.

Printed circuit board (PCB) 10 comprises Copper Foil cabling and the substrate that depends on the one of which bottom surface on it; The Copper Foil cabling also has multistage connecting line 23 on substrate, having total anodal 21 and one a total negative pole 22; These connecting lines 23 have constituted diode 31 connecting portion of series connection each other; Diode 31 is with connecting line 23, total positive pole 21 with after always negative pole 22 is connected whole fixing; It is not abutted against has the gap between the person mutually; And the gap is corresponding fluting 11. printed circuit board (PCB)s 10 on the printed circuit board (PCB) 10 properly fixing and be communicated with 10 diodes after; The insulation compound of its surface coverage epoxy resin, especially, insulation compound soaks into fluting 11.

It is thus clear that this module has good reverse withstand voltage and forward current performance, be applicable to the rectification output of magnetron circuit, can design suitable diode 31 numbers and parameter according to actual conditions, make whole module have goodish adaptability; Simultaneously, select suitable diode 31 for use owing to have the big degree of freedom, fit printed circuit board 10, its cost and technology are controlled easily, and applicability is strong.

Except These characteristics; Characteristics below the present technique scheme also has: on printed circuit board (PCB) 10; The coaxial in twos series connection of diode 31 becomes a unit 30 in the same way; All and constitute series circuit by radially being arranged in same plane mutually in the unit in the same way alternately reverse linking to each other, and have just become spread pattern shown in Figure 2; The processing that this form helps dispelling the heat can make whole module in compact conformation, have maximum heat convection surface; Printed circuit board (PCB) 10 has only one side to have the Copper Foil cabling; Diode 31 all is positioned on this face of printed circuit board (PCB) 10, makes to install and fix simply, and its insulation property are handled easily.All flutings 11 all arrive at the side of printed circuit board (PCB) 10; The shape and the diode 31 tortuous shapes of arranging of said printed circuit board (PCB) 10 are agreed with; So expanded diode 31 creepage distance each other to greatest extent; Make insulating material when applying, be infiltrated on the gap of leaning on mutually between the diode 31 more easily simultaneously, improved insulation property.

In the actual production, other has the shell 50 of an insulation, and this shell has an opening 51; This shell 50 can ccontaining this rectifier diode module 1 integral body, and total anodal and total negative pole is drawn corresponding pin from opening 51; Shell 50 holds whole its interior filling epoxy resin insulating material simultaneously of this rectifier diode module 1, promptly obtains the excellent diode (led) module of electric property and heat dispersion.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. rectifier diode module, it is characterized in that: it comprises:

Diode has an anodal and negative pole separately;

2. according to the said a kind of rectifier diode module of claim 1; It is characterized in that: become a unit in the same way in the coaxial in twos series connection of the above diode of said printed circuit board (PCB); All said unit in the same way are by radially being arranged in a plane mutually, and alternately reverse linking to each other constitute said series circuit.

3. according to the said a kind of rectifier diode module of claim 2, it is characterized in that: all said flutings all arrive at the side of said printed circuit board (PCB), and the tortuous shape of arranging of said printed circuit board (PCB) shape and said diode is agreed with.

4. according to the said a kind of rectifier diode module of claim 3, it is characterized in that: said printed circuit board (PCB) has only one side to have said Copper Foil cabling; Said diode all is positioned on this face of said printed circuit board (PCB).

5. according to the said a kind of rectifier diode module of claim 1, it is characterized in that: other has the shell of an insulation, and this shell has an opening; Said shell can ccontaining this rectifier diode module integral body, and said total positive pole is drawn corresponding pin with total negative pole from said opening; Said shell holds the whole of this rectifier diode module and fills said insulating material in it simultaneously.