CN105810436A - Rectification filter device with high cooling performance - Google Patents

Rectification filter device with high cooling performance Download PDF

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Publication number
CN105810436A
CN105810436A CN201610194466.9A CN201610194466A CN105810436A CN 105810436 A CN105810436 A CN 105810436A CN 201610194466 A CN201610194466 A CN 201610194466A CN 105810436 A CN105810436 A CN 105810436A
Authority
CN
China
Prior art keywords
described
electrode set
negative electrode
insulation sleeve
anode electrode
Prior art date
Application number
CN201610194466.9A
Other languages
Chinese (zh)
Inventor
潘丽萍
Original Assignee
中山市中广科研技术服务有限公司
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.)
Filing date
Publication date
Application filed by 中山市中广科研技术服务有限公司 filed Critical 中山市中广科研技术服务有限公司
Priority to CN201610194466.9A priority Critical patent/CN105810436A/en
Publication of CN105810436A publication Critical patent/CN105810436A/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
    • 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
    • H01G9/08Housing; Encapsulation
    • 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
    • H02M7/10Conversion 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 arranged for operation in series, e.g. for multiplication of voltage

Abstract

The invention discloses a rectification filter device with high cooling performance. The rectification filter device comprises two rectification diodes, two filter capacitors and a discharge resistor, wherein the two rectification diodes connected in series are connected in parallel with the two filter capacitors connected in series, the discharge resistor is connected in parallel to the two ends of the two filter capacitors connected in series, a shell of each filter capacitor comprises a positive electrode sleeve, a negative electrode sleeve and an insulation sleeve, the positive electrode sleeve and the negative electrode sleeve are arranged at the two ends, the filter capacitors are horizontally arranged on a printed circuit board (PCB) and are welded on the PCB by the positive electrode sleeves and the negative electrode sleeves, so that the height of the filter capacitors can be reduced, electronic components are more compact, and the volume of the rectification filter is reduced; a space between a capacitor component and an inner cavity of the shell is filled with heat conduction insulation epoxy resin, and heat inside the capacitor can be rapidly conducted out; the insulation sleeve is a heat conduction insulation sleeve, cooling ripples are arranged on the outer surfaces of the positive electrode sleeves and the negative electrode sleeves, the cooling area can be expanded to achieve an effect of rapid cooling; and therefore, the heat dissipation of the rectification filter device can be promoted.

Description

The straightening and filtering unit that a kind of thermal diffusivity is good

Technical field

The present invention relates to arrangement filter circuit field, particularly to the straightening and filtering unit that a kind of thermal diffusivity is good.

Background technology

LED drive circuit is it is necessary to have input rectifying wave filter and output rectification filter device.Input rectifying wave filter needs relatively large capacitance rectifier output voltage could be smoothed to allowed band.Output rectification filter device is also required to enough capacitances and comes the stability of holding circuit and the smooth of output electric current.Current rectifying and wave filtering circuit all contains electric capacity, and the maximum weakness of electrolysis condenser 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 highly determines the height of circuit board, causes the excessive height of circuit board.

Summary of the invention

The main purpose of the present invention is to provide a kind of stable performance and the good straightening and filtering unit of thermal diffusivity.

The present invention proposes the straightening and filtering unit that a kind of thermal diffusivity is good, including pcb board and the full-wave voltage doubler being made up of two commutation diodes, two filter capacitors and a bleeder resistance being arranged on pcb board, filter capacitor series connection described in two, commutation diode series connection described in two, described in the two of series connection, commutation diode is in parallel with filter capacitor described in connect two, described bleeder resistance be connected in parallel on series connection two described in the two ends of filter capacitor, constitute a full-wave voltage doubler;

Described capacitor element includes core, it is centered around the capacitor element in described core, it is arranged on positive electrical pole plate and the negative el at capacitor element two ends, described shell is by the anode electrode set being placed in two ends, negative electrode set and the insulation sleeve being connected between described anode electrode set and described negative electrode set are constituted, described insulation sleeve and described anode electrode set, connected by snap between described negative electrode set, it is provided with draw-in groove at the two ends of described insulation sleeve internal face, it is provided with the snap fit corresponding with described draw-in groove with one end that described insulation sleeve is connected what described anode electrode set overlapped with described negative electrode, buckle in corresponding described draw-in groove by described snap fit, make described anode electrode set, negative electrode set is interconnected to form shell with described insulation sleeve;Described insulation sleeve is heat conductive insulating set, is provided with radiatinig corrugated on the outer surface of described anode electrode set and described negative electrode set;Heat conductive insulating epoxy resin it is filled with between described capacitor element and described shell inner cavity;Described positive electrical pole plate is electrically connected with described anode electrode set by the electrode contact being disposed thereon, and described negative el is electrically connected with described negative electrode set by the electrode contact being disposed thereon;Described filter capacitor lies on described pcb board, and described anode electrode set and described negative electrode set are welded on described pcb board.

Preferably, described insulation sleeve is heat conduction garment bag, and described anode electrode set and described negative electrode set are aluminium.

Current rectifying and wave filtering circuit in the straightening and filtering unit of the present invention is full-wave voltage doubler, for the alternating voltage of input is carried out rectification, filtering, obtains a smooth DC voltage;Bleeder resistance in parallel is for providing a path of releasing to filter capacitor, in order to after filter capacitor quits work, the electric energy of its two ends storage of releasing, and uses safer.

The shell of filter capacitor is made up of the anode electrode set being placed in two ends, negative electrode set and the insulation sleeve being connected between anode electrode set and negative electrode set, it is connected by snap between insulation sleeve with anode electrode set, negative electrode set, it is provided with draw-in groove at the two ends of insulation sleeve internal face, the one end being connected with insulation sleeve overlapped with negative electrode at anode electrode set is provided with the snap fit corresponding with draw-in groove, buckle in corresponding draw-in groove by snap fit, anode electrode set, negative electrode set is made to be interconnected to form shell with insulation sleeve, simple in construction, easy to assembly.

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

Between capacitor element and shell inner cavity, it is filled with heat conductive insulating epoxy resin, the heat of capacitor internal can be conducted rapidly;Insulation sleeve is heat conductive insulating set, is provided with radiatinig corrugated, can increase area of dissipation, to reach the effect of quick heat radiating on the outer surface of anode electrode set and negative electrode set;It is thus possible to accelerate the heat radiation of straightening and filtering unit.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of the straightening and filtering unit that the thermal diffusivity of the present invention is good;

Fig. 2 is the sectional view of the filter capacitor in the straightening and filtering unit that the thermal diffusivity of the present invention is good.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Detailed description of the invention

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

Referring to figs. 1 through Fig. 2, it is proposed to an embodiment of the straightening and filtering unit that the thermal diffusivity of the present invention is good:

This straightening and filtering unit includes pcb board and the full-wave voltage doubler being made up of two commutation diodes, two filter capacitors and a bleeder resistance being arranged on pcb board, two filter capacitor C1, C2 series connection, two commutation diode D1, D2 series connection, two commutation diode D1, D2 of series connection are in parallel with two filter capacitor C1, the C2 connected, bleeder resistance R is connected in parallel on the two ends of two filter capacitor C1, C2 of series connection., constitute a full-wave voltage doubler.Bleeder resistance R is for providing a path of releasing to filter capacitor C1, C2, in order to after filter capacitor C1, C2 quit work, the electric energy of its two ends storage of releasing.During circuit work, two commutation diode Dl, D2 and two electric capacity C1, C2 composition full-wave voltage doubler the alternating voltage inputted is carried out rectification, filtering, obtain a smooth DC voltage and export.

Filter capacitor C1, C2 include shell and the capacitor element being placed in shell, and capacitor element includes core 11, the capacitor element 10 being centered around in core, the positive electrical pole plate 12 being arranged on capacitor element 10 two ends and negative el 13.Shell is made up of the anode electrode set 21 being placed in two ends, negative electrode set 22 and the insulation sleeve 20 being connected between anode electrode set 21 and negative electrode set 22, is connected by snap between insulation sleeve 20 with anode electrode set 21, negative electrode set 22.It is provided with draw-in groove at the two ends of insulation sleeve 20 internal face, anode electrode overlap 21 with negative electrode overlap 22 be provided with the snap fit 23 corresponding with draw-in groove with one end that insulation sleeve 20 is connected, buckle in corresponding draw-in groove by snap fit 23, anode electrode set 21, negative electrode set 22 is made to be interconnected to form shell with insulation sleeve 20, simple in construction, easy to assembly.

Capacitor element is installed in the enclosure, is filled with heat conductive insulating epoxy resin 30, can be conducted rapidly by the heat of capacitor internal between capacitor element and shell inner cavity.Positive electrical pole plate 12 overlaps 21 by the electrode contact being disposed thereon with anode electrode and electrically connects, and negative el 13 overlaps 22 by the electrode contact being disposed thereon with negative electrode and electrically connects.Insulation sleeve 20 is heat conduction garment bag, and anode electrode set 21 and negative electrode set 22 are aluminium, good heat conduction effect, and the heat of energy capacitor internal conducts rapidly, is conducive to better heat radiation.The outer surface that anode electrode overlaps 21 and negative electrode set 22 is provided with radiatinig corrugated, area of dissipation can be increased, to reach the effect of quick heat radiating.

Filter capacitor C1, C2 lie on pcb board, and anode electrode set 11 and negative electrode set 12 are welded on pcb board, can reduce the height of filter capacitor, also make between electronic devices and components compacter, reduce the volume of straightening and filtering unit.

The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure transformation utilizing description of the present invention and accompanying drawing content to make; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.

Claims (2)

1. the straightening and filtering unit that a thermal diffusivity is good, it is characterized in that, including pcb board and the full-wave voltage doubler being made up of two commutation diodes, two filter capacitors and a bleeder resistance being arranged on pcb board, filter capacitor series connection described in two, commutation diode series connection described in two, commutation diode described in the two of series connection and filter capacitor parallel connection described in connect two, described bleeder resistance be connected in parallel on series connection two described in the two ends of filter capacitor, constitute a full-wave voltage doubler;
Described capacitor element includes core, it is centered around the capacitor element in described core, it is arranged on positive electrical pole plate and the negative el at capacitor element two ends, described shell is by the anode electrode set being placed in two ends, negative electrode set and the insulation sleeve being connected between described anode electrode set and described negative electrode set are constituted, described insulation sleeve and described anode electrode set, connected by snap between described negative electrode set, it is provided with draw-in groove at the two ends of described insulation sleeve internal face, it is provided with the snap fit corresponding with described draw-in groove with one end that described insulation sleeve is connected what described anode electrode set overlapped with described negative electrode, buckle in corresponding described draw-in groove by described snap fit, make described anode electrode set, negative electrode set is interconnected to form shell with described insulation sleeve;Described insulation sleeve is heat conductive insulating set, is provided with radiatinig corrugated on the outer surface of described anode electrode set and described negative electrode set;Heat conductive insulating epoxy resin it is filled with between described capacitor element and described shell inner cavity;Described positive electrical pole plate is electrically connected with described anode electrode set by the electrode contact being disposed thereon, and described negative el is electrically connected with described negative electrode set by the electrode contact being disposed thereon;Described filter capacitor lies on described pcb board, and described anode electrode set and described negative electrode set are welded on described pcb board.
2. the straightening and filtering unit that thermal diffusivity according to claim 1 is good, it is characterised in that described insulation sleeve is heat conduction garment bag, described anode electrode set and described negative electrode set are aluminium.
CN201610194466.9A 2016-03-31 2016-03-31 Rectification filter device with high cooling performance CN105810436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610194466.9A CN105810436A (en) 2016-03-31 2016-03-31 Rectification filter device with high cooling performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610194466.9A CN105810436A (en) 2016-03-31 2016-03-31 Rectification filter device with high cooling performance

Publications (1)

Publication Number Publication Date
CN105810436A true CN105810436A (en) 2016-07-27

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Application Number Title Priority Date Filing Date
CN201610194466.9A CN105810436A (en) 2016-03-31 2016-03-31 Rectification filter device with high cooling performance

Country Status (1)

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Citations (3)

* 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
CN203181275U (en) * 2012-12-31 2013-09-04 陈榕锦 LED drive circuit
CN203456304U (en) * 2013-09-22 2014-02-26 长沙百纳百维自动化设备有限公司 A frequency converter/inverter rectifying and filtering capacitor

Patent Citations (3)

* 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
CN203181275U (en) * 2012-12-31 2013-09-04 陈榕锦 LED drive circuit
CN203456304U (en) * 2013-09-22 2014-02-26 长沙百纳百维自动化设备有限公司 A frequency converter/inverter rectifying and filtering capacitor

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Application publication date: 20160727