CN105915071A - Rectification filter with compact structure - Google Patents

Rectification filter with compact structure Download PDF

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Publication number
CN105915071A
CN105915071A CN201610194858.5A CN201610194858A CN105915071A CN 105915071 A CN105915071 A CN 105915071A CN 201610194858 A CN201610194858 A CN 201610194858A CN 105915071 A CN105915071 A CN 105915071A
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CN
China
Prior art keywords
described
electrode set
connected
negative electrode
filter
Prior art date
Application number
CN201610194858.5A
Other languages
Chinese (zh)
Inventor
吴高冰
Original Assignee
中山市高乐电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中山市高乐电子科技有限公司 filed Critical 中山市高乐电子科技有限公司
Priority to CN201610194858.5A priority Critical patent/CN105915071A/en
Publication of CN105915071A publication Critical patent/CN105915071A/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/008Terminals
    • H01G9/012Terminals specially adapted for solid capacitors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/04Electrodes or formation of dielectric layers thereon
    • H01G9/042Electrodes or formation of dielectric layers thereon characterised by the material
    • H01G9/0425Electrodes or formation of dielectric layers thereon characterised by the material specially adapted for cathode
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/04Electrodes or formation of dielectric layers thereon
    • H01G9/048Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/052Sintered electrodes
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/07Dielectric layers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/15Solid electrolytic capacitors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/15Solid electrolytic capacitors
    • H01G9/153Skin fibre
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/14Arrangements for reducing ripples from dc input or output
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003Constructional details, e.g. physical layout, assembly, wiring, busbar connections
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Abstract

The invention discloses a rectification filter with a compact structure. The rectification filter comprises two rectifier diodes, two filtering capacitors and a discharge resistor, wherein the rectifier diodes connected in series and the two filtering capacitors connected in series are connected in parallel, the discharge resistor is connected in parallel with two ends of the filtering capacitors connected in series, and the filtering capacitors are tantalum electrolytic capacitors, further have stable performance and can realize excellent electrical performance even when operating for long time. A casing comprises a positive electrode sleeve and a negative electrode sleeve arranged at two ends and an insulation sleeve connected between the positive electrode sleeve and the negative electrode sleeve, the positive electrode sleeve, the negative electrode sleeve and the insulation sleeve are embedded in a corresponding slot through a hook, so the positive electrode sleeve, the negative electrode sleeve and the insulation sleeve are mutually connected to form the casing, and the filtering capacitors are flatly arranged on a PCB board and are welded on the PCB board through the positive electrode sleeve and the negative electrode sleeve. According to the rectification filter, height of the filter capacitors is reduced, the electronic components are made to be more compact, and the volume of the rectification filter is reduced.

Description

A kind of rectifier filter of compact conformation

Technical field

The present invention relates to arrange filter circuit field, particularly to the rectifier filter of a kind of compact conformation.

Background technology

LED drive circuit is it is necessary to have input rectifying wave filter and output rectification filter device.Input rectifying is filtered Ripple device needs relatively large capacitance rectifier output voltage could be smoothed to allowed band.Output rectification Wave filter is also required to enough capacitances and comes the stability of holding circuit and the smooth of output electric current.Rectification is filtered Wave circuit all contains electric capacity, and the weakness of electrolysis condenser maximum is that the life-span is short, and unstable properties. And what electric capacity connected generally by the pin drawn, such electric capacity is installed on circuit boards, and it is high Degree determines the height of circuit board, causes the excessive height of circuit board.

Summary of the invention

The main object of the present invention is to provide a kind of stable performance, length in service life and the rectification of compact conformation Wave filter.

The present invention proposes the rectifier filter of a kind of compact conformation, described rectifier filter include pcb board and Be arranged on pcb board be made up of two commutation diodes, two filter capacitors and a bleeder resistance complete Ripple voltage doubling rectifing circuit, filter capacitor series connection described in two, commutation diode series connection, the two of series connection described in two Described commutation diode is in parallel with filter capacitor described in two connected, and described bleeder resistance is connected in parallel on series connection The two ends of filter capacitor described in two, constitute a full-wave voltage doubler;

Described filter capacitor includes shell and the capacitor element being placed in described shell, described capacitor unit Part includes capacitor core, negative wire and positive wire, described shell by be placed in two ends anode electrode set, Negative electrode set and the insulation sleeve being connected between described anode electrode set and described negative electrode set are constituted, It is connected by snap between described insulation sleeve with described anode electrode set, described negative electrode set, The two ends of described insulation sleeve internal face are provided with draw-in groove, at described anode electrode set and described negative electrode set The one end being connected with described insulation sleeve is provided with the snap fit corresponding with described draw-in groove, buckles into phase by described snap fit In the described draw-in groove answered, described anode electrode set, negative electrode set is made to be connected with each other shape with described insulation sleeve Become shell;

Described capacitor core includes being burnt by the porous tantalum powder of high temperature sintering after tantalum metal powder briquet Caking positive electrode substrate, the surface of described tantalum powder sintering block positive electrode substrate is formed with TaO5 film through anodic oxidation, Negative pole end in described tantalum powder sintering block positive electrode substrate forms solid through high temperature sintering again by dipping manganese nitrate Electrolyte MnO2 layer, is coated with negative pole graphite linings, described on described solid electrolyte MnO2 layer Being coated with terne metal conductive layer in negative pole graphite linings, described positive wire is from described tantalum powder sintering block positive pole Extending out in matrix contact with described anode electrode set, described negative wire is from described solid electrolyte MnO2 Layer extend out to contact with described negative electrode set;Described filter capacitor lies on described pcb board, described Anode electrode set and described negative electrode set are welded on described pcb board.

Preferably, described negative wire is copper wire, and described positive wire is nickel wire.

Current rectifying and wave filtering circuit in the rectifier filter of the present invention is full-wave voltage doubler, for defeated The alternating voltage entered carries out rectification, filtering, obtains a smooth DC voltage;Bleeder resistance in parallel For providing a path of releasing to filter capacitor, in order to after filter capacitor quits work, release it The electric energy of two ends storage, uses safer.

After the tantalum powder briquet that filter capacitor employing granule is the thinnest, high temperature sintering becomes the tantalum powder sintering of porous Block positive electrode substrate, the effective area in monomer whose is long-pending is big, uses temperature range width;Tantalum powder sintering block positive pole The surface of matrix is formed with TaO5 film through anodic oxidation, and the dielectric constant of TaO5 film is than Jie of alumite Electric constant is big;Tantalum powder sintering block positive electrode substrate negative pole end by dipping manganese nitrate again through high temperature sintering shape Become solid electrolyte MnO2 layer, solid electrolyte MnO2 layer is coated with negative pole graphite linings, negative Terne metal conductive layer it is coated with in the graphite linings of pole;Therefore under conditions of identical pressure and capacitance, filter The small volume of ripple electric capacity, can reduce the volume of rectifier filter, and stable performance, work long hours Remain to keep good electrical property, the service life of rectifier filter can be extended.

The shell of filter capacitor is by being placed in the anode electrode set at two ends, negative electrode set and being connected to positive electrical Insulation sleeve between pole set and negative electrode set is constituted, and insulation sleeve and anode electrode set, negative electrode overlap it Between connected by snap, be provided with draw-in groove at the two ends of insulation sleeve internal face, at anode electrode set with negative One end being connected with insulation sleeve of pole electrode sleeve is provided with the snap fit corresponding with draw-in groove, is buckled into accordingly by snap fit Draw-in groove in, make anode electrode set, negative electrode set be interconnected to form shell with insulation sleeve, structure letter Single, easy to assembly.

Filter capacitor lies on pcb board, and anode electrode set and negative electrode set are welded on pcb board, The height of filter capacitor can be reduced, also make between electronic devices and components compacter, reduce rectifier filter Volume.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of the rectifier filter of the compact conformation of the present invention;

Fig. 2 is the sectional view of the filter capacitor in the rectifier filter of the compact conformation of the present invention.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further Explanation.

Detailed description of the invention

Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit Determine the present invention.

Referring to figs. 1 through Fig. 2, an embodiment of the rectifier filter of the compact conformation of the present invention proposed:

This rectifier filter include pcb board and be arranged on pcb board by two commutation diodes, two The full-wave voltage doubler that filter capacitor and a bleeder resistance are constituted, two filter capacitor C1, C2 series connection, Two commutation diode D1, D2 series connection, two commutation diode D1, D2 of series connection and two filtered electrical connected Holding C1, C2 in parallel, bleeder resistance R is connected in parallel on the two ends of two filter capacitor C1, C2 of series connection., structure Become a full-wave voltage doubler.Bleeder resistance R lets out for providing one to filter capacitor C1, C2 Put path, in order to after filter capacitor C1, C2 quit work, the electric energy of its two ends storage of releasing.Electricity During the work of road, two commutation diodes Dl, D2 and the full wave and voltage doubling rectification of two electric capacity C1, C2 compositions Circuit carries out rectification, filtering to the alternating voltage of input, obtains a smooth DC voltage and exports.

Filter capacitor C2, C3 include shell and the capacitor element being placed in shell, and capacitor element includes Capacitor core, negative wire and positive wire.Shell is by being placed in the anode electrode set 11 at two ends, negative electricity Pole set 12 and the insulation sleeve 13 being connected between anode electrode set 11 and negative electrode set 12 are constituted, absolutely It is connected by snap between edge set 13 with anode electrode set 11, negative electrode set 12.At insulation sleeve The two ends of 13 internal faces are provided with draw-in groove, anode electrode set 11 with negative electrode set 12 with insulation sleeve 13 The one end being connected is provided with the snap fit 14 corresponding with draw-in groove, is buckled in corresponding draw-in groove by snap fit 14, just makes Pole electrode sleeve 11, negative electrode set 12 is interconnected to form shell, simple in construction, group with insulation sleeve 13 Dress is convenient.

Capacitor core includes by the porous tantalum powder sintering block of high temperature sintering after tantalum metal powder briquet Positive electrode substrate 21, the effective area in monomer whose is long-pending is big, uses temperature range width.Tantalum powder sintering block positive pole The surface of matrix 21 is formed with TaO5 film 22 through anodic oxidation, and the dielectric constant of TaO5 film 22 compares alumina The dielectric constant changing film is big.Tantalum powder sintering block positive electrode substrate 21 negative pole end by dipping manganese nitrate warp again High temperature sintering forms solid electrolyte MnO2 layer 23, is coated with on solid electrolyte MnO2 layer 23 Negative pole graphite linings 24, is coated with terne metal conductive layer 25 in negative pole graphite linings 24.Negative wire is Copper wire, positive wire is nickel wire.Positive wire extend out to and positive pole in tantalum powder sintering block positive electrode substrate 21 Electrode sleeve 11 contacts, and negative wire extend out to overlap 12 with negative electrode from solid electrolyte MnO2 layer 23 Contact.

Filter capacitor C1, C2 lie on pcb board, anode electrode set 11 and negative electrode set 12 weldering It is connected on pcb board, the height of filter capacitor can be reduced, also make between electronic devices and components compacter, subtract The volume of little rectifier filter.

The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, Every equivalent structure transformation utilizing description of the invention and accompanying drawing content to be made, or directly or indirectly use In the technical field that other are relevant, the most in like manner it is included in the scope of patent protection of the present invention.

Claims (2)

1. the rectifier filter of a compact conformation, it is characterised in that described rectifier filter includes PCB Plate is made up of two commutation diodes, two filter capacitors and a bleeder resistance be arranged on pcb board Full-wave voltage doubler, described in two filter capacitor series connection, described in two commutation diode series connection, series connection Two described in commutation diode and filter capacitor described in two connected in parallel, described bleeder resistance is connected in parallel on string Described in the two of connection, the two ends of filter capacitor, constitute a full-wave voltage doubler;
Described filter capacitor includes shell and the capacitor element being placed in described shell, described capacitor unit Part includes capacitor core, negative wire and positive wire, described shell by be placed in two ends anode electrode set, Negative electrode set and the insulation sleeve being connected between described anode electrode set and described negative electrode set are constituted, It is connected by snap between described insulation sleeve with described anode electrode set, described negative electrode set, The two ends of described insulation sleeve internal face are provided with draw-in groove, at described anode electrode set and described negative electrode set The one end being connected with described insulation sleeve is provided with the snap fit corresponding with described draw-in groove, buckles into phase by described snap fit In the described draw-in groove answered, described anode electrode set, negative electrode set is made to be connected with each other shape with described insulation sleeve Become shell;
Described capacitor core includes being burnt by the porous tantalum powder of high temperature sintering after tantalum metal powder briquet Caking positive electrode substrate, the surface of described tantalum powder sintering block positive electrode substrate is formed with TaO5 film through anodic oxidation, Negative pole end in described tantalum powder sintering block positive electrode substrate forms solid through high temperature sintering again by dipping manganese nitrate Electrolyte MnO2 layer, is coated with negative pole graphite linings, described on described solid electrolyte MnO2 layer Being coated with terne metal conductive layer in negative pole graphite linings, described positive wire is from described tantalum powder sintering block positive pole Extending out in matrix contact with described anode electrode set, described negative wire is from described solid electrolyte MnO2 Layer extend out to contact with described negative electrode set;Described filter capacitor lies on described pcb board, described Anode electrode set and described negative electrode set are welded on described pcb board.
The rectifier filter of compact conformation the most according to claim 1, it is characterised in that described negative Pole lead-in wire is copper wire, and described positive wire is nickel wire.
CN201610194858.5A 2016-03-31 2016-03-31 Rectification filter with compact structure CN105915071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610194858.5A CN105915071A (en) 2016-03-31 2016-03-31 Rectification filter with compact structure

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Application Number Priority Date Filing Date Title
CN201610194858.5A CN105915071A (en) 2016-03-31 2016-03-31 Rectification filter with compact structure

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764844A (en) * 1986-06-13 1988-08-16 Murata Manufacturing Co., Ltd. Electronic component with terminal caps
CN203103134U (en) * 2012-12-17 2013-07-31 东莞市卓昊电子有限公司 Improved aluminium electrolytic capacitor
CN203181275U (en) * 2012-12-31 2013-09-04 陈榕锦 LED drive circuit
CN203367025U (en) * 2013-08-07 2013-12-25 深圳市容电科技有限公司 Tantalum electrolytic capacitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764844A (en) * 1986-06-13 1988-08-16 Murata Manufacturing Co., Ltd. Electronic component with terminal caps
CN203103134U (en) * 2012-12-17 2013-07-31 东莞市卓昊电子有限公司 Improved aluminium electrolytic capacitor
CN203181275U (en) * 2012-12-31 2013-09-04 陈榕锦 LED drive circuit
CN203367025U (en) * 2013-08-07 2013-12-25 深圳市容电科技有限公司 Tantalum electrolytic capacitor

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