CN103441500A - Low-power-consumption passive harmonic filter - Google Patents
Low-power-consumption passive harmonic filter Download PDFInfo
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- CN103441500A CN103441500A CN2013103767684A CN201310376768A CN103441500A CN 103441500 A CN103441500 A CN 103441500A CN 2013103767684 A CN2013103767684 A CN 2013103767684A CN 201310376768 A CN201310376768 A CN 201310376768A CN 103441500 A CN103441500 A CN 103441500A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The invention relates to a low-power-consumption passive harmonic filter which comprises a shell, a filter circuit and a harmonic suppression circuit. A front cavity, a rear cavity and a partition insulating sheet are arranged in the shell. The filter circuit is buried in the front cavity and comprises an LC oscillating circuit which is composed of an X capacitor and a choking coil L1, a discharging derating resistor R1 and a Y capacitor which is arranged between an L line and an N line after the mutual connection end of the Y capacitor is connected to the ground. The harmonic suppression circuit is buried in the rear cavity and a communication reactor L2 serves as the harmonic suppression circuit. The filter circuit and the harmonic suppression circuit are separated by the partition insulating sheet. Electrical leading-out pins of the filter circuit and the harmonic suppression circuit are directly connected. By means of a reasonably arranged circuit structure and scientific selection of a resistor value and a capacitor value, the resistance consumption power of the filter is less than 0.2W and the leak current of the filter is less than 3.5mA when equipment is in a normal working state or a standby state. The low-power-consumption passive harmonic filter is compact and reasonable in structure and basically ensures that electric appliances or equipment with the low-power-consumption passive harmonic filter can meet the requirements of the international market.
Description
Technical field
The present invention relates to electronic filtering device technical field, particularly a kind of with suppressing the noise jamming from the system outside, harmonic current and the improper clutter that absorption system inside produces, the low-power consumption passive harmonic filter that is conducive to reduce energy loss under holding state.
Background technology
Along with the raising of people's living standard and the change of health idea, the consumer is also more and more higher to the performance requirement of forging sports equipment class consuming device such as household electrical appliance, body, the utensil product of adapted PLC cyclelog and non-linear element class electromagnetic compatibility function element is more and more, if this appliances tends to affect the normal operation of electromagnetic compatibility function element while being subject in the course of the work the external electromagnetic noise jamming, thereby affect the functional reliability of household electrical appliance, so the anti-outside electromagnetic interference ability of ubiquity is weak and the weak point of poor work stability.And this appliances self also can produce a large amount of pollution harmonic waves in the course of the work, disturbs self, the normal operation of other consuming devices in power supply or network system.To this, the method that generally adopts at present between electric power incoming line and load circuit increase that power-supply filter is set overcomes the impact on the power supply networking from the external electromagnetic noise jamming of power-supply system and load clutter, but the humorous wave interference of high band electromagnetism produced for electrical equipment self work system does not have good inhibitory action, for this reason, the consumer often needs extra additional preparation to have the reactor that absorbs and suppress inner humorous wave energy, though certain actual effect is arranged, but caused thus the additional trouble that reactor special is set of installing on electric equipment, time-consuming except existing, require great effort and increase outside extra setup cost, also exist between reactor and filter and need to establish longer interconnecting lead, easy initiating system inductance, the uncertainty of distributed capacitance changes, cause producing new Electromagnetic Interference, thereby affect the effect of filter effect and inhibition harmonic wave, therefore consider still to owe desirable from practicality and economy angle, in addition, due to filter, under the device standby state, the work loop, still in conducting state, needs to consume certain energy and has certain leakage current, but in current design of filter, often only consider derate, the electric discharge requirement, and ignored factor energy-saving and cost-reducing and the minimizing leakage current for the resistor of the main components of bearing electric energy and thermal power transfer and the value of ground capacity, thereby ubiquity choosing value is random strong, self-energy loss and the larger drawback of leakage current under equipment normal operation and holding state, thereby become the household electrical appliance series products power consumption under holding state that causes electric equipment to be difficult to meet emphasizing in the EN60335-1 new standard of European Union's execution in 1 day January in 2013 and must not surpass 0.5W, and the leakage current of the IEC60335-1 standard code of International Electrotechnical Commission is less than the requirement of 3.5mA, so, the necessary improvement, to meet the international market demand of this series products.
Summary of the invention
The objective of the invention is to overcome the existing weak point of harmonic filter of using on existing consuming device, provide a kind of and integrate filtering and suppress humorous wave energy, can meet the instructions for use of consuming device in the brand-new sports equipment of each conception of species of modern times and household appliance technical field and less, the compact conformation that can meet international market demand of power consumption and scientific and reasonable low-power consumption passive harmonic filter under holding state.
Low-power consumption passive harmonic filter of the present invention consists predominantly of and is provided with pilot hole, the housing of power input interface and electric output interface, be arranged on the endoceliac filter circuit of shell and harmonic suppression circuit, be characterised in that: comprise in described housing chamber to be provided with and specialize in the ante-chamber of settling filter circuit, specialize in the back cavity of settling harmonic suppression circuit and be positioned at ante-chamber and back cavity junction, filter circuit and harmonic suppression circuit are played to the separation insulating trip of buffer action, wherein: described filter circuit is with low cost by having, the paraffin embedding that heat radiation and insulation property are good is filled and is embedded in ante-chamber, include and be arranged between L line and N line, by capacitor CX1 and capacitor CX2, formed, there is the X electric capacity of the symmetrical differential mode interference signal function of inhibition and the LC oscillating circuit that choke L1 forms, be arranged between the power input of L line and N line, play the resistor R1 of electric discharge derate effect, and by being arranged on after interconnect ground connection between L line and N line, by capacitor CY1 and capacitor CY2, formed, there is the Y electric capacity that suppresses asymmetric common mode interference signal function, described harmonic suppression circuit by one thering is harmonic current function that absorption equipment self produces, the equipment harmonic wave can be dropped to minimum communication reactor L2 to the impact of electric power network and fill the post of, and fill and be embedded in back cavity by thering is the epoxy resin encapsulated that reduces vibration that in the product running, reactor produces and noise function, described separation insulating trip is made by FR-60 High Performance Insulation thin-film material, described choke L1 by the enamelled wire be electrically connected with L line and N line, by insulating material be separated by, around to filling the post of with the number of turn common mode choke that symmetrical winding forms on magnet ring in the same manner, described capacitor CX1 is that 1.0uf, capacitor CX2 are 0.47uF, by the polypropylene metallization film capacitor, fills the post of, described capacitor CY1 and capacitor CY2 are 10nf, by Y5V ceramic disc capacitor device, fill the post of, and the filter leakage current under equipment normal operation or holding state is less than 3.5mA, described resistor R1 Standard resistance range is 242K Ω<R<1 M Ω, and the resistance consumption power under the device standby state is less than 0.2W, and device powers down is after 2 seconds, and voltage is less than 30% of rated voltage.
Under installment state in use, electric leading foot direct interconnection by separately between described filter circuit and harmonic suppression circuit also is separated by be arranged on and is positioned at ante-chamber and the back cavity of separating the insulating trip both sides by separating insulating trip, described housing is mounted on the shell inner surface of consuming device by pilot hole, described filter circuit is electrically connected by the power input socket of power input interface and consuming device, and harmonic suppression circuit is electrically connected by the power input of electric output interface and consuming device.
Low-power consumption passive harmonic filter of the present invention based on above-mentioned design, due to by filter circuit and harmonic suppression circuit by separate insulating trip be separated by, by electric leading foot interconnection separately, concentrated setting in the housing chamber, the uncertainty that has effectively overcome the system inductance that likely causes because of the mixed and disorderly connection wire in inside in the prior art and distributed capacitance changes and causes producing new Electromagnetic Interference, guarantee self normal filtering and inhibition harmonic wave effect, thereby be conducive to guarantee the functional reliability of consuming device or equipment, and owing to reasonably having selected electric discharge derate resistance value and Y output capacitance value, make filter from when power consumption equipment is worked or the power consumption control under holding state below 0.2W, leakage current is controlled at below 3.5mA, not only guaranteed the energy-saving effect of self, and meet requirement that leakage current that household electrical appliance series products power consumption under holding state of emphasizing in the EN60335-1 new standard must not surpass 0.5W and IEC60335-1 standard code the be less than 3.5mA assurance that provides the foundation for the consuming device that adopts energy-saving EMI passive harmonic filter of the present invention or equipment, for meeting international market demand, this class consuming device or equipment made substantive contribution.
The accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the electrical installation schematic diagram of the embodiment of the present invention.
In figure:
1. electric output interface 14. ante-chambers of housing 11. pilot hole 12. power input interface 13.
15. back cavity 2. filter circuit 3. harmonic suppression circuits 4. are separated insulating trip.
Embodiment
Below in conjunction with accompanying drawing and exemplary embodiments, the invention will be further described.
In Fig. 1 and Fig. 2, low-power consumption passive harmonic filter of the present invention consists predominantly of and is provided with pilot hole 11, the housing 1 of power input interface 12 and electric output interface 13, be arranged on filter circuit 2 and harmonic suppression circuit 3 in housing 1 chamber, be characterised in that: comprise in described housing 1 chamber to be provided with and specialize in the ante-chamber 14 of settling filter circuit 2, specialize in the back cavity 15 of settling harmonic suppression circuit 3 and be positioned at ante-chamber 14 and back cavity 15 junctions, separation insulating trip 4 to filter circuit 2 and 3 buffer actions of harmonic suppression circuit, wherein: described filter circuit 2 is with low cost by having, the paraffin embedding that heat radiation and insulation property are good is filled to be embedded in and is arranged in ante-chamber 14, include and be arranged between L line and N line, by capacitor CX1 and capacitor CX2, formed, there is the X electric capacity of the symmetrical differential mode interference signal function of inhibition and the LC oscillating circuit that choke L1 forms, be arranged between the power input of L line and N line, play the resistor R1 of electric discharge derate effect, and by being arranged on after interconnect ground connection between L line and N line, by capacitor CY1 and capacitor CY2, formed, there is the Y electric capacity that suppresses asymmetric common mode interference signal function, described harmonic suppression circuit 3 by one thering is harmonic current function that absorption equipment self produces, the equipment harmonic wave can be dropped to minimum communication reactor L2 to the impact of electric power network and fill the post of, and fill and be embedded in back cavity 15 by thering is the epoxy resin encapsulated that reduces vibration that in the product running, reactor produces and noise function, described separation insulating trip 4 is made by FR-60 High Performance Insulation thin-film material, described choke L1 by the enamelled wire be electrically connected with L line and N line, by insulating material be separated by, around to filling the post of with the number of turn common mode choke that symmetrical winding forms on magnet ring in the same manner, described capacitor CX1 is that 1.0uf, capacitor CX2 are 0.47uF, by the polypropylene metallization film capacitor, fills the post of, described capacitor CY1 and capacitor CY2 are 10nf, by Y5V ceramic disc capacitor device, fill the post of, and the filter leakage current under equipment normal operation or holding state is less than 3.5mA, described resistor R1 Standard resistance range is 242K Ω<R<1 M Ω, and the resistance consumption power under the device standby state is less than 0.2W, and device powers down is after 2 seconds, and voltage is less than 30% of rated voltage.
Under installment state in use, electric leading foot direct interconnection by separately between described filter circuit 2 and harmonic suppression circuit 3 also is separated by be arranged on and is positioned at ante-chamber 14 and the back cavity 15 of separating insulating trip 4 both sides by separating insulating trip 4, described housing 1 is mounted on the shell inner surface of consuming device by pilot hole 11, described filter circuit 2 is electrically connected by power input interface 12 and the power input socket of consuming device, and harmonic suppression circuit 3 is electrically connected by electric output interface 13 and the power input of consuming device.
Claims (5)
1. a low-power consumption passive harmonic filter, consist predominantly of and be provided with pilot hole (11), the housing (1) of power input interface (12) and electric output interface (13), be arranged on filter circuit (2) and harmonic suppression circuit (3) in housing (1) chamber, it is characterized in that in described housing (1) chamber comprising being provided with and specialize in the ante-chamber (14) of settling filter circuit (2), specialize in the back cavity (15) of settling harmonic suppression circuit (3) and be located at ante-chamber (14) and back cavity (15) between, separation insulating trip (4) to filter circuit (2) and harmonic suppression circuit (a 3) buffer action, wherein:
Described filter circuit (2) is with low cost by having, the paraffin embedding that heat radiation and insulation property are good is filled and is embedded in ante-chamber (14), include and be arranged between L line and N line, by capacitor CX1 and capacitor CX2, formed, there is the X electric capacity of the symmetrical differential mode interference signal function of inhibition and the LC oscillating circuit that choke L1 forms, be arranged between the input of L line and N line, play the resistor R1 of electric discharge derate effect, and by being arranged on after interconnect ground connection between L line and N line, by capacitor CY1 and capacitor CY2, formed, there is the Y electric capacity that suppresses asymmetric common mode interference signal function,
Described harmonic suppression circuit (3) by one thering is harmonic current function that absorption equipment self produces, the equipment harmonic wave can be dropped to minimum communication reactor L2 to the impact of electric power network and fill the post of, and fill and be embedded in back cavity (15) by thering is the epoxy resin encapsulated that reduces vibration that in the product running, reactor produces and noise function;
Described separation insulating trip (4) is made by FR-60 High Performance Insulation thin-film material;
Described choke L1 by the wire be electrically connected with L line and N line, by insulating material be separated by, around to filling the post of with the number of turn common mode choke that symmetrical winding forms on magnet ring in the same manner;
Described capacitor CX1 is that 1.0uf, capacitor CX2 are 0.47uF, by the polypropylene metallization film capacitor, fills the post of;
Described capacitor CY1 and capacitor CY2 are respectively 10nf, by Y5V ceramic disc capacitor device, are filled the post of, and guarantee that the leakage current of filter under equipment normal operation or holding state is less than 3.5mA;
Described resistor R1 Standard resistance range is 242K Ω<R<1 M Ω, and the resistance consumption power under the device standby state is less than 0.2W, and device powers down is after 2 seconds, and voltage is less than 30% of rated voltage.
2. low-power consumption passive harmonic filter according to claim 1, it is characterized in that described filter circuit (2) and harmonic suppression circuit (3) under confined state each other by electric leading foot direct interconnection separately.
3. low-power consumption passive harmonic filter according to claim 1, is characterized in that by pilot hole (11), being mounted on the shell inner surface of consuming device under described housing (1) installment state in use.
4. low-power consumption passive harmonic filter according to claim 1, is characterized in that by power input interface (12) and the power input socket of consuming device, being electrically connected under described filter circuit (2) installment state in use.
5. low-power consumption passive harmonic filter according to claim 1, is characterized in that by electric output interface (13) and the power input of consuming device, being electrically connected under described harmonic suppression circuit (3) installment state in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376768.4A CN103441500B (en) | 2013-08-27 | 2013-08-27 | A kind of Low-power-consumptiopassive passive harmonic filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376768.4A CN103441500B (en) | 2013-08-27 | 2013-08-27 | A kind of Low-power-consumptiopassive passive harmonic filter |
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| CN103441500A true CN103441500A (en) | 2013-12-11 |
| CN103441500B CN103441500B (en) | 2015-10-14 |
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| CN201310376768.4A Active CN103441500B (en) | 2013-08-27 | 2013-08-27 | A kind of Low-power-consumptiopassive passive harmonic filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140616A (en) * | 2015-09-24 | 2015-12-09 | 重庆大及电子科技有限公司 | Filtering assembly processing method |
| CN108336898A (en) * | 2018-04-11 | 2018-07-27 | 四川升华电源科技有限公司 | Brick filter module and power supply module |
Citations (4)
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| CN2847644Y (en) * | 2005-12-24 | 2006-12-13 | 海信集团有限公司 | Filter circuit for suppressing electromagnetic interfence for 3P frequency variable air conditioner |
| CN101217265A (en) * | 2008-01-09 | 2008-07-09 | 上海西艾爱电子有限公司 | An iron shell filter of energy saving and environmental protection type and the corresponding preparation method |
| CN201430576Y (en) * | 2009-05-27 | 2010-03-24 | 北京中石伟业技术有限公司 | Filter with integrated harmonic and conduction suppression |
| CN201528199U (en) * | 2009-09-14 | 2010-07-14 | 宝鸡市瑞通电器有限公司 | Dual-section low-pass power-supply filter |
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2013
- 2013-08-27 CN CN201310376768.4A patent/CN103441500B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2847644Y (en) * | 2005-12-24 | 2006-12-13 | 海信集团有限公司 | Filter circuit for suppressing electromagnetic interfence for 3P frequency variable air conditioner |
| CN101217265A (en) * | 2008-01-09 | 2008-07-09 | 上海西艾爱电子有限公司 | An iron shell filter of energy saving and environmental protection type and the corresponding preparation method |
| CN201430576Y (en) * | 2009-05-27 | 2010-03-24 | 北京中石伟业技术有限公司 | Filter with integrated harmonic and conduction suppression |
| CN201528199U (en) * | 2009-09-14 | 2010-07-14 | 宝鸡市瑞通电器有限公司 | Dual-section low-pass power-supply filter |
Non-Patent Citations (1)
| Title |
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| 仇志凌: "基于LCL滤波器的三相三线并网变流器若干关键技术研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140616A (en) * | 2015-09-24 | 2015-12-09 | 重庆大及电子科技有限公司 | Filtering assembly processing method |
| CN105140616B (en) * | 2015-09-24 | 2018-02-16 | 重庆大及电子科技有限公司 | Filtering unit processing method |
| CN108336898A (en) * | 2018-04-11 | 2018-07-27 | 四川升华电源科技有限公司 | Brick filter module and power supply module |
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| Publication number | Publication date |
|---|---|
| CN103441500B (en) | 2015-10-14 |
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Effective date of registration: 20181022 Address after: 213000 5 Jianxin Road, Chun Jiang Town, Xinbei District, Changzhou, Jiangsu Patentee after: Jiangsu crown discovery Motor Technology Co., Ltd. Address before: 200949 1058 Xiao Yun Road, Baoshan District, Shanghai. Patentee before: Shanghai Scil Electronic Co., Ltd. |
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Effective date of registration: 20200312 Address after: 201949 1058 Xiaoyun Road, Baoshan District, Shanghai Patentee after: Shanghai Scil Electronic Co., Ltd. Address before: 213000 5 Jianxin Road, Chun Jiang Town, Xinbei District, Changzhou, Jiangsu Patentee before: Jiangsu crown discovery Motor Technology Co., Ltd. |