CN1212503A - Noise Reduction Filters for Power Converters - Google Patents

Noise Reduction Filters for Power Converters Download PDF

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Publication number
CN1212503A
CN1212503A CN98118517A CN98118517A CN1212503A CN 1212503 A CN1212503 A CN 1212503A CN 98118517 A CN98118517 A CN 98118517A CN 98118517 A CN98118517 A CN 98118517A CN 1212503 A CN1212503 A CN 1212503A
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China
Prior art keywords
main circuit
helical coil
conductor
pattern
circuit pattern
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Granted
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CN98118517A
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Chinese (zh)
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CN1229915C (en
Inventor
冈本健次
深沢直人
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Fuji Electric Co Ltd
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Fuji Electric Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20336—Comb or interdigital filters
    • H01P1/20345—Multilayer filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • H01P11/007—Manufacturing frequency-selective devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/09—Filters comprising mutual inductance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Filters And Equalizers (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

一种具有电感器和电容器功能的噪声削减滤波器,在介电极两面形成具有电感器功能的导体图形,使线圈图形沿垂直于介电板平面的方向对准,通过把主电路导体键合到介电板一面上形成的线圈图形来构成主电路图形。通过冲床的冲压来形成主电路导体,该导体的剖面面积足以使所需值的电流流过且具有与线圈图形基本相同的形状。把接地线键合到介电板另一面上形成的线圈图形,接地线把从主电路图形经由介电板流入线圈图形的包含噪声的电流引向接地端。

A noise reduction filter with the functions of an inductor and a capacitor, forming a conductor pattern with an inductor function on both sides of a dielectric electrode, aligning the coil pattern in a direction perpendicular to the plane of the dielectric plate, and bonding the conductors of the main circuit The coil pattern formed on one side of the dielectric board constitutes the main circuit pattern. The main circuit conductor is formed by punching with a punching machine, the conductor has a cross-sectional area sufficient to allow a required value of current to flow and has substantially the same shape as the coil pattern. The ground wire is bonded to the coil pattern formed on the other side of the dielectric board, and the ground wire guides the current containing noise flowing from the main circuit pattern through the dielectric board into the coil pattern to the ground terminal.

Description

The noise-cut filter that is used for power converter
The present invention relates to be used for the noise-cut filter of power converter, relate in particular to and be used for filtering and constitute the noise-cut filter that is created in switching noise such as electric power such as inverter (power) converter when the switching manipulation of semiconductor switch device.
Semiconductor switch device such as power converters such as inverters is carried out switching manipulation based on drive signal, the pulse-width modulation (PWM) of these drive signals through being carried out to the carrier frequency in about 20 KHz scopes with several KHz.During switching manipulation, it is the switching noise of tens KHz that power converter produces frequency component.
In the frequency component of switching noise as mentioned above, frequency has adverse effect at 100 KHz or those higher components to external equipment.At this situation, various rules had been proposed power converter in recent years, in the hope of reducing or eliminating this adverse effect.In order to adapt to these rules, power converter is provided with suitable noise-cut filter.
A known example that is used for the noise-cut filter of power converter comprises the single capacitor of single reactor and film or sheet, and in reactor, live wire is wrapped in around the core that for example ferrite, non-crystaline amorphous metal or alloy crystalline etc. form.Reactor becomes L shaped with capacitor-coupled, the filter of the switching noise that produces when the switching manipulation with the semiconductor switch device that is provided for the filtering power converter.
List of references as one piece of prior art of the noise-cut filter of relevant power converter, at " Integrated Output Filter and Diode Snubber Foor Switchnode Power Converters ", IEEE, 1994, disclosed a kind of filter circuit with integrated plate-like structure among the pp.1240-1245, this structure comprises rectifier, RC muffler circuit and LC filter circuit.This list of references also is illustrated the basic skills of making each circuit.
In addition, " Integrated Filters For Switch-ModePower Supplies " as another prior art list of references, IEEE, 1995, disclosed three types the LC filter circuit that has different structure according to employed dielectric material wherein among the pp.809-816.Promptly, dielectric material is divided into the material that has ceramic structure and have non-ceramic structure, point out that also a kind of filter circuit with plate-like structure (BaTiO3 as dielectric material) is a kind of the type of ceramic material as dielectric material, and the two kinds of filter circuits in addition (tabular and use the vapor deposition type of plasma) with film like structures are a kind of the type of non-ceramic material as dielectric material.
Employed reactor has annular usually in the noise-cut filter of above-mentioned known type, and capacitor is the pin insert type and has the plane or cylindrical shape.In the time of on the printed panel that reactor and capacitor is installed to power converter inside, the volume summation of the required space of these two elements greater than each element is installed, thereby causes the reduction of efficiency of assembling.When being installed on the printed panel by this noise-cut filter of cloth bundle of lines that separates, will increase the number of coupling unit, and the mode of fixing each element undesirable complexity that will become.
Commercially available so-called sheet type or pin insert type combination LC filter comprise the inductor and the capacitor unit of combination, this filter has several MHz or higher cut-off frequency, and the required low usually approximately 150KHz that for example arrives of cut-off frequency of the switching noise that the filtering semiconductor switch device is produced when switching manipulation.So, the switching noise that commercially available filter can not the filtering semiconductor switch device be produced when switching manipulation.
In addition, in such as power converters such as inverters, expectation maybe needs to make several amperes electric current to flow through the noise-cut filter that is used for converter.So, saw with becoming originally with regard to current capacity, be difficult to commercially available combination LC filter as noise-cut filter.
The filter circuit that is disclosed in the list of references of above-mentioned two pieces of prior arts has the manufacture method complicated problems, and this makes these circuit not be suitable for actual use, and causes the increase of manufacturing cost.
Therefore, an object of the present invention is to provide and a kind ofly can handle low-frequency noise and guarantee the noise-cut filter of enough big current capacity.
Another object of the present invention provides a kind of cheap small-sized noise-cut filter with good operating reliability, makes this filter by being easily mounted to suitable circuitous pattern on-chip simple manufacture method.
In order to realize first purpose, the noise-cut filter that is provided comprises: with first dielectric sheet of tabular formation; The first and second spiral coil figures that on the apparent surface of first dielectric sheet, form respectively, thereby the first and second spiral coil figures are along aiming at mutually perpendicular to the direction on the first dielectric sheet plane, and the first and second spiral coil figures are stuck with paste by conduction and formed and have the function of inductor; By first main circuit conductor is bonded to the first main circuit figure that the first spiral coil figure that forms forms on the first dielectric sheet apparent surface's a surface, punching press by punch press forms first main circuit conductor, thereby the area of section of this conductor flows through even as big as the electric current that makes desirable value, and this conductor has basically and the identical shape of the first spiral coil figure; Link first earth connection of the second spiral coil figure that forms on another surface of first dielectric sheet away from the first main circuit figure, first earth connection is guiding earth terminal from the first main circuit figure into via the electric current that comprises noise that first dielectric sheet flows into the second spiral coil figure; Second dielectric sheet with tabular formation; The third and fourth spiral coil figure that on the apparent surface of second dielectric sheet, forms respectively, thereby the third and fourth spiral coil figure is along aiming at mutually perpendicular to the direction on the second dielectric sheet plane, and the third and fourth spiral coil figure is stuck with paste by conduction and formed and have the function of inductor; By second main circuit conductor is bonded to the second main circuit figure that the triple helical shape coil pattern that forms forms on the second dielectric sheet apparent surface's a surface, punching press by punch press forms second main circuit conductor, thereby the area of section of this conductor flows through even as big as the electric current that makes desirable value, and this conductor has basically and the identical shape of triple helical shape coil pattern; Link second earth connection of the 4th spiral coil figure that forms on another surface of second dielectric sheet away from the second main circuit figure, second earth connection is guiding earth terminal from the second main circuit figure into via the electric current that comprises noise that second dielectric sheet flows into the 4th spiral coil figure; And the insulation board that forms with tabular, this insulation board is inserted in first dielectric sheet that has the first main circuit figure and has on it between second dielectric sheet of the second main circuit figure; Wherein the end in the first main circuit conductor opposite end is linked the end in the second main circuit conductor opposite end, thereby the other end of first and second main circuit conductors is used separately as input and output, first dielectric sheet that has the first main circuit figure combines with second dielectric sheet that has the second main circuit figure, thereby the filter circuit with inductor function and capacitor function is provided.
In a preferred versions of the present invention, in first main circuit conductor and second main circuit conductor each all is coated with welding compound in advance, is bonded to respectively by conduction and sticks with paste first and the triple helical shape coil pattern that forms being coated with first main circuit conductor of welding compound and in the second leading body conductor each by welding.
In another preferred versions of the present invention, be coated with first main circuit conductor of welding compound and each in second main circuit conductor and have the stepped construction that comprises multilayer, have the stepped construction of the thickness that the desired profile area is provided thereby form.
According to another aspect of the present invention, a kind of noise-cut filter is provided, and it comprises as mentioned above a plurality of filter circuits of constituting, be assemblied in a plurality of cores of separating (a plurality of filter circuits are housed in this housing) in the housing and fill space between filter circuit and the core of separating with the resin material of seal casinghousing.
Resin material can be made of the macromolecule copolymer resin material that comprises the predetermined ratio inorganic filler.
Resin material can be made of silicone gel (silicone gel) and the macromolecule copolymer resin material that comprises the predetermined ratio inorganic filler.In the case, the macromolecule copolymer resin material is only filled an end parts at the input and output side place of each filter circuit in the enclosure interior space, and silicone gel is filled the remainder in the enclosure interior space.
Resin material can be made of silicone gel, can be on housing an end at the input and output side place of each filter circuit cap is set with fixing input and output side.
According to another aspect of the present invention, a kind of equipment that comprises power converter is provided, this power converter comprises switching device and aforesaid noise-cut filter, wherein noise-cut filter is linked the input stage or the output stage of power converter, thus the switching noise that the filtering switching device is produced when switching manipulation.
The present invention also provides a kind of equipment that comprises power converter, this power converter comprises switching device and the noise-cut filter that constitutes as mentioned above, wherein noise-cut filter is linked the circuit in the power converter, thus the switching noise that the filtering switching device is produced when switching manipulation.
According to another aspect of the present invention, a kind of method that is used to make noise-cut filter is provided, it may further comprise the steps: form the first and second spiral coil figures on the apparent surface of flat first dielectric sheet, thereby the first and second spiral coil figures are along aiming at mutually perpendicular to the direction on the first dielectric sheet plane, and the first and second spiral coil figures are stuck with paste by conduction and formed and have the function of inductor; Form the first main circuit figure by first main circuit conductor being bonded to the first spiral coil figure that on the first dielectric sheet apparent surface's a surface, forms, punching press by punch press forms first main circuit conductor, thereby the area of section of this conductor flows through even as big as the electric current that makes desirable value, and this conductor has basically and the identical shape of the first spiral coil figure; First earth connection is bonded to the second spiral coil figure that forms on another surface of first dielectric sheet away from the first main circuit figure, first earth connection is guiding earth terminal from the first main circuit figure into via the electric current that comprises noise that first dielectric sheet flows into the second spiral coil figure; On the apparent surface of flat second dielectric sheet, form the third and fourth spiral coil figure, thereby the third and fourth spiral coil figure is along aiming at mutually perpendicular to the direction on the second dielectric sheet plane, and the third and fourth spiral coil figure is stuck with paste by conduction and formed and have the function of inductor; Form the second main circuit figure by second main circuit conductor being bonded to the triple helical shape coil pattern that on the second dielectric sheet apparent surface's a surface, forms, punching press by punch press forms second main circuit conductor, thereby the area of section of this conductor flows through even as big as the electric current that makes desirable value, and this conductor has basically and the identical shape of triple helical shape coil pattern; Second earth connection is bonded to the 4th spiral coil figure that forms on another surface of second dielectric sheet away from the second main circuit figure, second earth connection is guiding earth terminal from the second main circuit figure into via the electric current that comprises noise that second dielectric sheet flows into the 4th spiral coil figure; And at first dielectric sheet that has the first main circuit figure and have and insert flat insulation board between second dielectric sheet of the second main circuit figure; Wherein an end of first main circuit conductor is linked an end of second main circuit conductor, thereby the other end of first and second main circuit conductors is used separately as input and output; First dielectric sheet that has the first main circuit figure combines with second dielectric sheet that has the second main circuit figure, thereby the filter circuit with inductor function and capacitor function is provided.
To the present invention be described in more detail with reference to some preferred embodiment of the present invention and accompanying drawing, wherein:
Fig. 1 (a) is each processing step that illustrates according to the noise-cut filter manufacture method of first embodiment of the invention to Fig. 1 (d);
Fig. 2 is the figure that is illustrated in a later processing step of Fig. 1 step in the manufacture method of noise-cut filter;
Fig. 3 is the figure that is illustrated in a later processing step of Fig. 2 step in the manufacture method of noise-cut filter;
Fig. 4 is the perspective view that the shape of through holes that the end parts by stamped coil forms is shown;
Fig. 5 is the perspective view that noise-cut filter basic structure is shown;
Fig. 6 is the circuit diagram that the constant lc circuit that distributes is shown;
Fig. 7 is the profile that illustrates according to the stamped coil that is coated with welding compound of second embodiment of the invention;
Fig. 8 illustrates the profile that stamped coil is laminated to the structure on the coil pattern that forms on the dielectric sheet;
Fig. 9 is the profile that illustrates according to the noise-cut filter structure of third embodiment of the invention, and wherein noise-cut filter is installed in the housing;
Figure 10 is the profile that illustrates according to the noise-cut filter structure of fourth embodiment of the invention, and wherein noise-cut filter is installed in the housing;
Figure 11 is the profile that illustrates according to the noise-cut filter structure of fifth embodiment of the invention, and wherein noise-cut filter is installed in the housing;
Figure 12 illustrates the three-phase noise-cut filter is linked block diagram according to the configuration of the power converter input stage of sixth embodiment of the invention;
Figure 13 illustrates the block diagram of the three-phase noise-cut filter being linked the configuration of power converter output stage; And
Figure 14 illustrates the block diagram that noise-cut filter is installed in the configuration in the power converter.
To describe preferred embodiments more of the present invention with reference to the accompanying drawings in detail.
At first will the first embodiment of the present invention be described referring to figs. 1 to Fig. 6.The manufacture method of foundation noise-cut filter of the present invention at first, is described referring to figs. 1 to Fig. 3.
In the processing step 1 shown in Fig. 1 (a), preparation is by such as BaTO 3Or the dielectric sheet 1 that forms of ferroelectric ceramic material such as PZT.The thickness of dielectric sheet 1 at 100 μ m in the 1mm scope.In the present embodiment, the thickness of dielectric sheet 1 is about 0.5mm.
Then, on the front and rear surfaces of dielectric sheet 1, form and stick with paste spiral coil figure 2a, the 2b that forms and play the inductor function, thereby coil pattern 2a, 2b edge is aimed at mutually perpendicular to the direction on the plane of dielectric sheet 1 by conduction.For example, conduction is stuck with paste and can be comprised Ag as main component.Though in the processing step 1 of Fig. 1 (a), solidify to form these figures on the dielectric sheet 1 then, but also can cement copper or other materials form these figures by sputter, vacuum evaporation or plating can conduction is stuck with paste to be added to by silk screen printing.
In the processing step 2 shown in Fig. 1 (b), be bonded on the coil pattern 2a that forms on the surface of dielectric sheet 1 forming and have the coil 3a identical shaped (that is first main circuit conductor) with coil pattern 2a by punching press by welding.Coil 3a that so is bonded together and coil pattern 2a provide the first main circuit figure 4a that plays inductor function and capacitor function.
Punching press by punch press forms coil 3a with copper coin or similar material, thereby coil 3a has the electric current of the main circuit of making (for example, the circuit of power converter) by the required area of section.Especially, the area of section of the stamped coil 3 of formation can be passed through coil 3a even as big as making 1A to tens ampere electric current, and its thickness is in 0.5mm arrives the 1.0mm scope.
Form elongation zone at the end of stamped coil 3a, this zone is outwards pulled out being installed on the printed wiring board that wherein inserts pin, thereby coil 3a links to each other with external circuit with certain-length.In Fig. 1 (b), use U 1Represent to be positioned at the elongation zone or the terminal of the above-mentioned end of coil 3a.
As shown in Figure 4, pass the other end of the stamped coil 3a that is positioned at coil central authorities and be positioned at that a part of dielectric sheet 1 is pre-formed through hole 7 below the coil 3a other end.Configuration can provide number enough big coil turn thus, can use the pin that inserts through hole 7 that coil pattern is linked to each other with other figures.
In the processing step 3 shown in Fig. 1 (c), the lead-in wire 2c of the ground connection figure that allows the noise component(s) electric current to pass through is bonded to the coil pattern 2b that on the surperficial facing surfaces of dielectric sheet 1 and the formation first main circuit figure 4a, forms by welding.Here, the noise component(s) electric current refers to the caused electric current of noise component(s) that produced by the electric current that flows through the first main circuit figure 4a when flowing into coil pattern 2a by dielectric sheet 1.
By carrying out processing step 1 to 3 as mentioned above, can be made into the substrate A that plays inductor and capacitor function, wherein formation has an end U on an above-mentioned surface of dielectric sheet 1 1The first main circuit figure 4a, on another surface of dielectric sheet 1, form coil pattern 2b with lead-in wire 2c.
In the processing step 4 shown in Fig. 1 (d), make the substrate B that has with above-mentioned substrate A analog structure.In the case, so constitute substrate B, thereby on a surface of dielectric sheet 5, form the second main circuit figure 4b, on another surface of dielectric sheet 5, form coil pattern 2b.End at the second main circuit figure 4b forms the elongation zone with certain-length, and this zone is drawn out dielectric sheet 5 and links to each other with external circuit.In Fig. 1 (d), use U 2Represent to be positioned at the elongation zone or the terminal of the above-mentioned end of coil 3b (that is second main circuit conductor) of coil pattern 4b.So the substrate B that constitutes plays the function of inductor and capacitor in the mode that is similar to substrate A.
In the processing step 4 of Fig. 1 (d), the insulation board 6 by interlayer is being connected with each other at the substrate B that forms the substrate A of the first main circuit figure 4a on the dielectric sheet 1 and form the 4b of the second main circuit figure on dielectric sheet 5.Layer insulation plate 6 is formed with through hole 7, and this through hole connects with the through hole 7 that passes substrate A, B formation.By the through hole 7 of formation like this, the pin of available insertion through hole 7 fixes substrate A, B by welding, thereby these two substrates are combined.So, can increase the number of turn of coil by the number that increases substrate.
By fixing substrate A, B with pin, can be electrically connected the inner end of the inner end of the first main circuit figure 4a and the second main circuit figure 4b mutually, thereby the first main circuit figure 4a connects with the second main circuit figure 4b with upper type.As a result, can be the end or the terminal U that outwards elongate from the first main circuit figure 4a 1With the end or the terminal U that outwards elongate from the second main circuit figure 4b 2As electric input and output side.
Be similar to the situation of coil pattern 2a (corresponding to the first main circuit figure 4a and the second main circuit figure 4b), also utilize the through hole (not shown) that the neutral earthing compensator figure 2b of substrate A, B is connected with each other.In Fig. 1 (d), represent the earth terminal of the neutral earthing compensator figure 2b that links to each other with P.Be formed for the through hole of the coil pattern 2a of main circuit in the position different, thereby these through holes are not overlapped with the lead to the hole site of the coil pattern 2b that is used for earthed circuit.
By carrying out processing step 1 to 4, combining,, a cover plays the noise-cut filter circuit 100 of inductor and capacitor function so that being provided at substrate A that forms the first main circuit figure 4a on first dielectric sheet 1 and the substrate B that on second dielectric sheet 5, forms the second main circuit figure 4b.In the case, the above-mentioned end of the first main circuit figure 4a is linked the corresponding end of the second main circuit figure 4b, thus can be the other end of the circuitous pattern 4a, the 4b that are not connected with each other as input U 1With output U 2
In processing step shown in Figure 25, preparation is by carrying out the two cover noise-cut filter circuit that processing step 1 to 4 is made.In Fig. 2, use U respectively 1And U 2The input and output side of the expression first cover noise-cut filter circuit 100 is used V 1And V 2The input and output side of the expression second cover noise-cut filter circuit 200.Insert insulation board 8 between the first cover noise-cut filter circuit 100 and the second cover noise-cut filter circuit 200, the layer that piles up in these two circuit is clipped between a pair of magnetic core that separates 9 along the direction perpendicular to these layer planes.The kit form of the magnetic core 9 that can separate as a result, (following will be called the magnetic core assembly) is installed in two cover noise-cut filter circuit 100,200 in the housing.
As shown in Figure 2, by one side formation opening 9a of magnetic core assembly 9, thereby can from magnetic core 9a, take out input and output side U by opening 9a 1, U 2And input and output side V 1, V 2Lead-in wire.For example, magnetic core 9 can be formed by ferrite.In addition, the middle body at each magnetic core 9 inner surface is formed for making each layer location of filter circuit 100,200 and fixing protruding 9b.
If between the magnetic core 9 that separates, insert two cover noise-cut filter circuit, then can form single phase filter, it has the common mode reactor that is used for linear filter and the combining structure of ground capacitor.If between magnetic core 9, insert three cover noise-cut filter circuit, then can form Three-phase electric-wave filter with same structure.
In the processing step 6 of Fig. 3, the opening 9a of the magnetic core assembly 9 by two cover noise-cut filter circuit, 100,200 (single phase filter is provided) are housed, space or space macromolecule copolymer resin material 10 injects in the housings make its curing then.For the noise-cut filter circuit of installing in this way 100,200, can pull out the lead end that is used for two-phase by the opening 9a of magnetic core assembly 9, i.e. the input and output side U of the first main circuit figure of noise-cut filter circuit 100 1, U 2And the input and output side V of the second main circuit figure of noise-cut filter circuit 200 1, V 2Can utilize pin to insert or mounted on surface, the lead end that so stretches out is bonded on the socket or similar device of printed wiring board by welding.So lead end combines with substrate can form single encapsulation.
Then the electrology characteristic of substrate structure will be described with reference to figure 5 and Fig. 6.In Fig. 5, play the area of section that the first main circuit figure 4a of the conductor effect of inductor had even as big as electric current by power converter (not shown) main circuit.The first main circuit figure 4a sticks with paste the coil pattern 2a form by conduction on the dielectric sheet 1 and constitutes by the coil 3a that the punching press electric conducting material forms.On dielectric sheet 1, form the coil pattern 2b that plays the earthing conductor effect, thereby coil pattern 2b is along aiming at the first main circuit figure 4a perpendicular to the direction on dielectric sheet 1 plane.
Because the coil pattern 2b that plays the earthing conductor effect only need guide the noise component(s) electric current that flows through dielectric sheet 1 into earth terminal, so can make the area of section of coil pattern 2b do less than the area of section of the first main circuit figure 4a.The substrate structure of the second main circuit figure 4b is similar to the substrate structure of the first main circuit figure 4a, therefore is not described.
In Fig. 6, play the terminal U of the first main circuit figure 4a of inductor conductor effect 1, U 2Have suitable length, thereby small inductance continuous distribution is arranged in terminal U 1, U 2Length on.Equally, there is small inductance to distribute along the coil pattern 2b that plays the earthing conductor effect.Because the first main circuit figure 4a and coil pattern 2b aim at and have inserted dielectric sheet 1 mutually therebetween, thus small electric capacity between figure 4a and 2b, formed continuously, in having provided distribution constant circuit with functions of low-pass filter.Expectation cut-off frequency (for example 150kHz or higher) that low pass filter had is enough to filtering by constituting the switching noise that produces such as the switching manipulation of the semiconductor switch device of power converters such as inverter.
Then will the second embodiment of the present invention be described with reference to figure 7 and 8.
Fig. 7 is a profile, wherein by coating welding compound 11 is added to as the first main circuit figure 4a or the stamped coil 3a of second a main circuit figure 4b part or the surface of 3b.Can be from welding compound 11 such as selection coating coil 3a or 3b the alloys such as Sn/Pb and Sn/Ag.Can easily be welded to the stamped coil 3a of coating welding compound 11 like this or 3b in aforesaid processing step 2 by on the formed coil pattern 2a of conduction paste.
Fig. 8 illustrates an example, and is wherein stacked together and be bonded on the dielectric sheet 1 on the coil pattern 2a that forms the two-layer stamped coil 3a that is coated with welding compound 11.By so mutual stacked stamped coil 3a, can easily increase current capacity by coil 3a.Also can be stacked three layers or more multi-layered stamped coil 3a.
Referring now to Fig. 9 the third embodiment of the present invention is described.
Fig. 9 illustrates the structure of a noise-cut filter, wherein two cover noise-cut filter circuit 100,200 is installed in the magnetic core assembly 9.In the present embodiment, use the macromolecule copolymer resin material 10 different to fill space between magnetic core assembly 9 and the noise-cut filter circuit 100,200 with the embodiment of Fig. 3, thus the sealing filter circuit.
Employed macromolecule copolymer resin material 10 can be made of the epoxy resin, urethane resin or the similar material that are added with such as inorganic fillers such as quartz powder or aluminium powders in the present embodiment.The thermal coefficient of expansion of macromolecule copolymer resin material 10 must equal the thermal coefficient of expansion of magnetic core 9, thereby avoids the caused tension force of thermal stress.
Use aforesaid macromolecule copolymer resin material 10 to seal magnetic core assembly 9, improved the insulation characterisitic of filter, and can prevent that noise-cut filter circuit 100,200 from being stain by dust or other impurity of otherwise entering magnetic core assembly 9 by opening 9a, thereby prevent the reduction of insulating capacity.
But inorganic filler is added to macromolecule copolymer resin material 10 makes noise-cut filter circuit 100,200 dissipative flows cross their heat that electric current produced.In addition, fix the lead end U of the first main circuit figure 4a by the macromolecule copolymer resin material 10 of the above-mentioned type 1, U 2And the lead end V of the second main circuit figure 4b 1, V 2By the lead end of fix in position like this, even there is being external force to be added to the lead end U of stamped coil 3 1, U 2And V 1, V 2The time, also can prevent from this external force is added to the noise-cut filter circuit of imbedding in the resin material 10 100,200.
To be described with reference to Figure 10 the fourth embodiment of the present invention.
Figure 10 is illustrated in the structure that two cover noise-cut filter circuit 100,200 are housed in the magnetic core assembly 9 separately.In the present embodiment, the space between silicone gel 11 filling magnetic core assemblies 9 that are used to seal and the noise-cut filter circuit 100,200, thereby gel 11 is filled into opening 9a to be separated a little, and the macromolecule copolymer resin material 10 that is used to seal is filled into its complementary space of silicone gel 11 tops with opening 9a and flushes, and makes resin material 10 be exposed to the outside of magnetic core assembly 9.Can from above-mentioned material, select macromolecule copolymer resin material 10.
By suitably selecting to be used for the inner and surperficial material of seal casinghousing, improved insulation characterisitic, and can prevent that noise-cut filter circuit 100,200 from being stain by dust or other impurity of otherwise entering housing by opening 9a, thereby prevent the decline of insulation characterisitic.
It is favourable using the low relatively silicone gel 11 of modulus of elasticity, and this is because can not guarantee the raising of Mechanical Reliability because of thermal stress causes tension force.In addition, make the lead end U of the first main circuit figure 4a with macromolecule copolymer resin material 10 1, U 2Lead end V with the second main circuit figure 4b 1, V 2Fix in position, thereby, even there is external force to be added to lead end U 1, U 2And V 1, V 2, also can advantageously prevent from this external force is added to the noise-cut filter circuit 100,200 of magnetic core assembly 9 inside.
To be described with reference to Figure 11 the fifth embodiment of the present invention.Figure 11 illustrates the structure that two cover noise-cut filter circuit 100,200 are contained in the magnetic core assembly 9.In the present embodiment, the silicone gel 11 that is used to seal is filled into the space between magnetic core assembly 9 and the noise-cut filter circuit 100,200 with opening 9a and flushes, and by terminal fixedly cap 12 cover opening 9a, thereby by cap 12 the lead end U of the first main circuit figure 4a 1, U 2Lead end V with the second main circuit figure 4b 1, V 2Fix in position.
The cap 12 that is used for fixing terminal has been arranged, even there is external force to be added to lead end U 1, U 2And V 1, V 2, also can prevent from this external force is added to the noise-cut filter circuit 100,200 that places in the magnetic core assembly 9.In addition, can prevent that noise-cut filter circuit 100,200 from being stain by dust or other impurity of otherwise entering magnetic core assembly 9 by opening 9a, thereby prevent the decline of insulation characterisitic.The cap 12 that is used for fixing terminal is by forming such as PPS (polyphenylene sulfide) or PBT high molecular polymer resin materials such as (polybutyleneterephthalates).
Then will describe the sixth embodiment of the present invention in detail referring to figs. 12 to Figure 14.
Figure 12 illustrates an example, wherein the three cover noise-cut filter circuit 100,200 and 300 input stages that are arranged on such as power converters such as inverter 20 that are used for the three-phase noise-cut filter.
Though in the embodiment of Figure 11, the noise-cut filter circuit 100,200 that is used for single phase filter is contained in magnetic core assembly 9 at Fig. 1, but also can be in the processing step 5 of Fig. 2 another noise-cut filter circuit 300 be installed in below the noise-cut filter circuit 200, thereby the three-phase noise-cut filter is provided.
In the noise-cut filter that so constitutes, noise-cut filter circuit 100 comprises lead end U 1, U 2, noise-cut filter circuit 200 comprises lead end V 1, V 2, and noise-cut filter circuit 300 comprises lead end W 1, W 2Lead end U 1, V 1, W 1Link terminal 21a, 21b, the 21c of external circuit respectively, lead end U 2, V 2, W 2 Link power converter 20.
The lead end that connection like this has been arranged, make 100,200, the 300 energy filtering meetings of noise-cut filter circuit otherwise be transmitted into the low-frequency noise of power converter 20, also can prevent from the switching noise that switching device produced of power converter 20 is transferred to terminal 21a, 21b, 21c with signal from terminal 21a, 21b, 21c.
Figure 13 illustrates an example, wherein overlapping noise-cut filter circuit 100,200,300 output stages that are arranged on such as power converters such as inverter 20 according to three of the Three-phase electric-wave filter that is used for of the present invention.
Lead end U 1, V 1, W 1 Link power converter 20, lead end U 2, V 2, W 2Link terminal 22a, 22b, the 22c of external circuit.By the lead end that connects in this way, make noise-cut filter circuit 100,200,300 can filterings by the switching noise that switching device produced and other noises of power converter 20, thereby prevent from switching noise is transferred to terminal 22a, 22b, 22c from power converter 20.In addition, but 100,200,300 filterings of noise-cut filter circuit enter power converter 20 from terminal 22a, 22b, 22c low-frequency noise.
Figure 14 illustrates an example, wherein two cover noise-cut filter circuit 100,200 is arranged on such as power converters such as inverter 20 inside.
Power converter 20 installed be arranged on its import a side be used for the input an alternating current convert galvanic rectifier 23 to and be arranged on output one side a semiconductor switch device 22.The lead end U of noise-cut filter circuit 100 1, V 1Link the rectifier 23 of input one side, the lead end U of noise-cut filter circuit 200 2, V 2Link the switching device 24 of output one side.
By the lead end U that connects in this way 1, U 2And V 2, V 2But, make the switching noise that the semiconductor switch device 24 of noise-cut filter circuit 100,200 filtering power converters 20 is produced when switching manipulation.
As mentioned above, according to the present invention, on the apparent surface of dielectric sheet, form and stick with paste the helical conductor figure that forms and have the inductor function by conduction, thereby these conductor figs constitute the main circuit figure along aiming at mutually perpendicular to the direction on dielectric sheet plane by conductor being bonded to the conductor fig that forms on the surface in the dielectric sheet apparent surface.Punching press by punch press forms conductor, thereby the area of section that this conductor had flows through even as big as the electric current that makes desirable value, and this conductor also has the shape substantially the same with the spiral coil figure.In addition, earth connection is bonded to the conductor fig that forms on another surface of dielectric sheet, thereby earth connection is guiding earth terminal from the main circuit figure into via the electric current that comprises noise that dielectric sheet flows into conductor fig.So, the filter circuit with inductor and capacitor function is provided, the filtering or cut down low-frequency noises such as switching noise fully of this circuit such as power converter, and power converter required several amperes or bigger electric current are passed through.
According to manufacture method of the present invention, a plurality of noise-cut filter circuit are contained in or are encapsulated in the magnetic core assembly, then with space or space in the macromolecule copolymer resin material filling magnetic core assembly, thus the sealing filter.So, can easily produce cheap small-sized noise-cut filter by simple manufacturing process, thereby can easily be installed in this noise-cut filter on the printed wiring board, guarantee the reliable part of good insulation characterisitic and machinery simultaneously.

Claims (16)

1．一种噪声削减滤波器，其特征在于包括：1. A noise reduction filter is characterized in that it comprises: 以平板状形成的第一介电板；a first dielectric plate formed in a flat plate shape; 分别在所述第一介电板的相对表面上形成的第一和第二螺旋状线圈图形，从而第一和第二螺旋状线圈图形沿垂直于第一介电板平面的方向相互对准，所述第一和第二螺旋状线圈图形由导电糊形成且具有电感器的功能；first and second helical coil patterns respectively formed on opposite surfaces of said first dielectric plate so that the first and second helical coil patterns are aligned with each other in a direction perpendicular to the plane of the first dielectric plate, The first and second helical coil patterns are formed of conductive paste and function as inductors; 通过把第一主电路导体键合到在所述第一介电板相对表面的一个表面上形成的所述第一螺旋状线圈图形而形成的第一主电路图形，通过冲床的冲压而形成所述第一主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第一螺旋状线圈图形相同的形状；The first main circuit pattern formed by bonding a first main circuit conductor to the first helical coil pattern formed on one surface of the first dielectric board opposite surface is punched by a punch press to form the first main circuit pattern. said first main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the first helical coil pattern; 键合到在远离所述第一主电路图形的所述第一介电板另一个表面上形成的所述第二螺旋状线圈图形的第一接地线，所述第一接地线把从第一主电路图形经由所述第一介电板流入第二螺旋状线圈图形的包含噪声的电流引向接地端；bonded to the first ground line of the second helical coil pattern formed on the other surface of the first dielectric board away from the first main circuit pattern, the first ground line The noise-containing current flowing into the second helical coil pattern from the main circuit pattern through the first dielectric plate is led to the ground terminal; 以平板状形成的第二介电板；a second dielectric plate formed in a flat plate shape; 分别在所述第二介电板的相对表面上形成的第三和第四螺旋状线圈图形，从而第三和第四螺旋状线圈图形沿垂直于第二介电板平面的方向相互对准，所述第三和第四螺旋状线圈图形由导电糊形成且具有电感器的功能；third and fourth helical coil patterns respectively formed on opposite surfaces of said second dielectric plate so that the third and fourth helical coil patterns are aligned with each other in a direction perpendicular to the plane of the second dielectric plate, The third and fourth helical coil patterns are formed of conductive paste and function as inductors; 通过把第二主电路导体键合到在所述第二介电板相对表面的一个表面上形成的所述第三螺旋状线圈图形而形成的第二主电路图形，通过冲床的冲压而形成所述第二主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第三螺旋状线圈图形相同的形状；The second main circuit pattern formed by bonding a second main circuit conductor to the third helical coil pattern formed on one of the opposite surfaces of the second dielectric board is punched by a punch to form the second main circuit pattern. said second main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the third helical coil pattern; 键合到在远离所述第二主电路图形的所述第二介电板另一个表面上形成的所述第四螺旋状线圈图形的第二接地线，所述第二接地线把从第二主电路图形经由所述第二介电板流入第四螺旋状线圈图形的包含噪声的电流引向接地端；以及bonded to the second ground line of the fourth helical coil pattern formed on the other surface of the second dielectric board away from the second main circuit pattern, the second ground line is connected from the second A noise-containing current flowing from the main circuit pattern into the fourth helical coil pattern via the second dielectric plate is led to a ground terminal; and 以平板状形成的绝缘板，所述绝缘板插在带有所述第一主电路图形的所述第一介电板与其上带有所述第二主电路图形的所述第二介电板之间；an insulating plate formed in a flat plate, the insulating plate being inserted between the first dielectric plate with the first main circuit pattern and the second dielectric plate with the second main circuit pattern thereon between; 其中所述第一主电路导体相对端中的一端连到所述第二主电路导体相对端中的一端，从而第一和第二主电路导体的另一端被分别用作输入端和输出端，以及wherein one of the opposite ends of the first main circuit conductor is connected to one of the opposite ends of the second main circuit conductor such that the other ends of the first and second main circuit conductors are used as input and output terminals respectively, as well as 带有第一主电路图形的第一介电板与带有第二主电路图形的第二介电板相结合，从而提供具有电感器功能和电容器功能的滤波器电路。The first dielectric board with the first main circuit pattern is combined with the second dielectric board with the second main circuit pattern, thereby providing a filter circuit having an inductor function and a capacitor function. 2．如权利要求1所述的噪声削减滤波器，其特征在于所述第一主电路导体和所述第二主电路导体中的每一个都预先涂敷有焊接剂，通过焊接把涂敷有焊接剂的第一主电路导体和第二主电路导体中的每一个分别键合到由导电糊形成的第一和第三螺旋状线圈图形。2. The noise reduction filter according to claim 1, wherein each of said first main circuit conductor and said second main circuit conductor is pre-coated with solder, and the solder is coated with solder by soldering. Each of the first main circuit conductor and the second main circuit conductor is respectively bonded to the first and third helical coil patterns formed of the conductive paste. 3．如权利要求2所述的噪声削减滤波器，其特征在于涂敷有焊接剂的第一主电路导体和第二主电路导体中的每一个具有包括多层的层叠结构，从而形成具有提供所需剖面面积的厚度的层叠结构。3. The noise reduction filter according to claim 2, wherein each of the first main circuit conductor and the second main circuit conductor coated with solder has a laminated structure including a plurality of layers, thereby being formed to provide the required The thickness of the laminated structure of the cross-sectional area. 4．一种噪声削减滤波器，其特征在于包括：4. A noise reduction filter is characterized in that it comprises: 多个滤波器电路；multiple filter circuits; 装配在一壳体中的多个分开的核心，在所述壳体中装有所述多个滤波器电路；以及a plurality of separate cores assembled in a housing in which the plurality of filter circuits are housed; and 填充滤波器电路与分开的核心之间的空间以密封壳体的树脂材料；A resin material that fills the space between the filter circuit and the divided core to seal the case; 其中所述多个滤波器电路中的每一个包括：wherein each of the plurality of filter circuits comprises: 以平板状形成的第一介电板；a first dielectric plate formed in a flat plate shape; 分别在所述第一介电板的相对表面上形成的第一和第二螺旋状线圈图形，从而第一和第二螺旋状线圈图形沿垂直于第一介电板平面的方向相互对准，所述第一和第二螺旋状线圈图形由导电糊形成且具有电感器的功能；first and second helical coil patterns respectively formed on opposite surfaces of said first dielectric plate so that the first and second helical coil patterns are aligned with each other in a direction perpendicular to the plane of the first dielectric plate, The first and second helical coil patterns are formed of conductive paste and function as inductors; 通过把第一主电路导体键合到在所述第一介电板相对表面的一个表面上形成的所述第一螺旋状线圈图形而形成的第一主电路图形，通过冲床的冲压而形成所述第一主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第一螺旋状线圈图形相同的形状；The first main circuit pattern formed by bonding a first main circuit conductor to the first helical coil pattern formed on one surface of the first dielectric board opposite surface is punched by a punch press to form the first main circuit pattern. said first main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the first helical coil pattern; 连到在远离所述第一主电路图形的所述第一介电板另一个表面上形成的所述第二螺旋状线圈图形的第一接地线，所述第一接地线把从第一主电路图形经由所述第一介电板流入第二螺旋状线圈图形的包含噪声的电流引向接地端；connected to the first ground line of the second helical coil pattern formed on the other surface of the first dielectric board away from the first main circuit pattern, the first ground line The noise-containing current flowing into the second helical coil pattern from the circuit pattern via the first dielectric plate is led to a ground terminal; 以平板状形成的第二介电板；a second dielectric plate formed in a flat shape; 分别在所述第二介电板的相对表面上形成的第三和第四螺旋状线圈图形，从而第三和第四螺旋状线圈图形沿垂直于第二介电板平面的方向相互对准，所述第三和第四螺旋状线圈图形由导电糊形成且具有电感器的功能；third and fourth helical coil patterns respectively formed on opposite surfaces of said second dielectric plate so that the third and fourth helical coil patterns are aligned with each other in a direction perpendicular to the plane of the second dielectric plate, The third and fourth helical coil patterns are formed of conductive paste and function as inductors; 通过把第二主电路导体键合到在所述第二介电板相对表面的一个表面上形成的所述第三螺旋状线圈图形而形成的第二主电路图形，通过冲床的冲压而形成所述第二主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第三螺旋状线圈图形相同的形状；The second main circuit pattern formed by bonding a second main circuit conductor to the third helical coil pattern formed on one of the opposite surfaces of the second dielectric board is punched by a punch to form the second main circuit pattern. said second main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the third helical coil pattern; 连到在远离所述第二主电路图形的所述第二介电板另一个表面上形成的所述第四螺旋状线圈图形的第二接地线，所述第二接地线把从第二主电路图形经由所述第二介电板流入第四螺旋状线圈图形的包含噪声的电流引向接地端；以及connected to the second ground line of the fourth helical coil pattern formed on the other surface of the second dielectric board away from the second main circuit pattern, the second ground line connects the second ground line from the second main circuit pattern A noise-containing current flowing from the circuit pattern into the fourth helical coil pattern via the second dielectric plate is led to a ground terminal; and 以平板状形成的绝缘板，所述绝缘板插在带有所述第一主电路图形的所述第一介电板与其上带有所述第二主电路图形的所述第二介电板之间；an insulating plate formed in a flat plate, the insulating plate being inserted between the first dielectric plate with the first main circuit pattern and the second dielectric plate with the second main circuit pattern thereon between; 其中所述第一主电路导体相对端中的一端连到所述第二主电路导体相对端中的一端，从而第一和第二主电路导体的另一端被分别用作输入端和输出端，以及wherein one of the opposite ends of the first main circuit conductor is connected to one of the opposite ends of the second main circuit conductor such that the other ends of the first and second main circuit conductors are used as input and output terminals respectively, as well as 带有第一主电路图形的第一介电板与带有第二主电路图形的第二介电板相结合，从而提供具有电感器功能和电容器功能的每个所述滤波器电路。The first dielectric board with the first main circuit pattern is combined with the second dielectric board with the second main circuit pattern, thereby providing each of said filter circuits having an inductor function and a capacitor function. 5．如权利要求4所述的噪声削减滤波器，其特征在于所述树脂材料包括包含预定比例无机填料的高分子聚合物树脂材料。5. A noise reduction filter according to claim 4, wherein said resin material comprises a high molecular polymer resin material containing a predetermined proportion of inorganic filler. 6．如权利要求4所述的噪声削减滤波器，其特征在于所述树脂材料包括硅树脂凝胶以及包含预定比例无机填料的高分子聚合物树脂材料，所述高分子聚合物树脂材料只填充壳体内部空间中每个滤波器电路的输入和输出端所在的一端部分，而所述硅树脂凝胶填充壳体内部空间中的其余部分。6. The noise reduction filter according to claim 4, wherein said resin material comprises silicone resin gel and a high molecular polymer resin material containing a predetermined proportion of inorganic fillers, and said high molecular polymer resin material only fills the casing The inner space is part of one end where the input and output terminals of each filter circuit are located, while the silicone gel fills the remaining part in the inner space of the housing. 7．如权利要求4所述的噪声削减滤波器，其特征在于还包括设置在壳体上每个滤波器电路的输入和输出端所在的一端的壳盖用以固定输入和输出端，其中所述树脂材料包括硅树脂凝胶。7. The noise reduction filter as claimed in claim 4, further comprising a case cover provided on the case where the input and output ends of each filter circuit are located to fix the input and output ends, wherein the resin Materials include silicone gel. 8．一种包括电力变换器以及如权利要求1-7中任一项所述的噪声削减滤波器的设备，所述电力变换器包括开关器件，其中所述噪声削减滤波器连到电力变换器的输入级和输出级，从而滤除在开关器件作开关操作时所产生的开关噪声。8. An apparatus comprising a power converter and a noise reduction filter according to any one of claims 1-7, said power converter comprising a switching device, wherein said noise reduction filter is connected to an input of the power converter Stage and output stage, thereby filtering the switching noise generated when the switching device is switched. 9. 一种包括电力变换器以及如权利要求1-7中任一项所述的噪声削减滤波器的设备，所述电力变换器包括开关器件，其中噪声削减滤波器连到电力变换器内的电路，从而滤除在开关器件作开关操作时所产生的开关噪声。9. A device comprising a power converter and the noise reduction filter according to any one of claims 1-7, the power converter comprising switching devices, wherein the noise reduction filter is connected to a circuit, thereby filtering the switching noise generated when the switching device is switched. 10．一种制造噪声削减滤波器的方法，其特征在于包括以下步骤：10. A method of manufacturing a noise reduction filter, comprising the steps of: 在平板状的第一介电板的相对表面上形成第一和第二螺旋状线圈图形，从而第一和第二螺旋状线圈图形沿垂直于第一介电板平面的方向相互对准，所述第一和第二螺旋状线圈图形由导电糊形成且具有电感器的功能；First and second helical coil patterns are formed on opposite surfaces of the flat first dielectric plate so that the first and second helical coil patterns are aligned with each other in a direction perpendicular to the plane of the first dielectric plate, so that The first and second helical coil patterns are formed of conductive paste and have the function of an inductor; 通过把第一主电路导体键合到在所述第一介电板相对表面的一个表面上形成的所述第一螺旋状线圈图形来形成第一主电路图形，通过冲床的冲压而形成所述第一主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第一螺旋状线圈图形相同的形状；The first main circuit pattern is formed by bonding a first main circuit conductor to the first helical coil pattern formed on one of the opposite surfaces of the first dielectric board, the forming of the a first main circuit conductor such that the cross-sectional area of said conductor is large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the first helical coil pattern; 把第一接地线键合到在远离所述第一主电路图形的所述第一介电板另一个表面上形成的所述第二螺旋状线圈图形，所述第一接地线把从第一主电路图形经由所述第一介电板流入第二螺旋状线圈图形的包含噪声的电流引向接地端；bonding a first ground wire to the second helical coil pattern formed on the other surface of the first dielectric board away from the first main circuit pattern, the first ground wire connecting from the first The noise-containing current flowing into the second helical coil pattern from the main circuit pattern through the first dielectric plate is led to the ground terminal; 在平板状的第二介电板的相对表面上形成第三和第四螺旋状线圈图形，从而第三和第四螺旋状线圈图形沿垂直于第二介电板平面的方向相互对准，所述第三和第四螺旋状线圈图形由导电糊形成且具有电感器的功能；Third and fourth helical coil patterns are formed on opposite surfaces of the flat second dielectric plate so that the third and fourth helical coil patterns are aligned with each other in a direction perpendicular to the plane of the second dielectric plate, so that The third and fourth helical coil patterns are formed of conductive paste and have the function of inductors; 通过把第二主电路导体键合到在所述第二介电板相对表面的一个表面上形成的所述第三螺旋状线圈图形来形成第二主电路图形，通过冲床的冲压而形成所述第二主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第三螺旋状线圈图形相同的形状；The second main circuit pattern is formed by bonding a second main circuit conductor to the third helical coil pattern formed on one of the opposite surfaces of the second dielectric board, and the second main circuit pattern is formed by punching of a punch press. a second main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the third helical coil pattern; 把第二接地线键合到在远离所述第二主电路图形的所述第二介电板另一个表面上形成的所述第四螺旋状线圈图形，所述第二接地线把从第二主电路图形经由所述第二介电板流入第四螺旋状线圈图形的包含噪声的电流引向接地端；以及bonding a second ground wire to the fourth helical coil pattern formed on the other surface of the second dielectric board away from the second main circuit pattern, the second ground wire connecting the second ground wire from the second A noise-containing current flowing from the main circuit pattern into the fourth helical coil pattern via the second dielectric plate is led to a ground terminal; and 在带有所述第一主电路图形的所述第一介电板与带有所述第二主电路图形的所述第二介电板之间插入平板状的绝缘板；a planar insulating plate is inserted between the first dielectric board with the first main circuit pattern and the second dielectric board with the second main circuit pattern; 其中所述第一主电路导体的一端连到所述第二主电路导体的一端，从而第一和第二主电路导体的另一端被分别用作输入端和输出端；wherein one end of said first main circuit conductor is connected to one end of said second main circuit conductor such that the other ends of the first and second main circuit conductors are used as input and output terminals, respectively; 带有第一主电路图形的第一介电板与带有第二主电路图形的第二介电板相结合，从而提供具有电感器功能和电容器功能的滤波器电路。The first dielectric board with the first main circuit pattern is combined with the second dielectric board with the second main circuit pattern, thereby providing a filter circuit having an inductor function and a capacitor function. 11. 如权利要求10所述的制造噪声削减滤波器的方法，其特征在于还包括以下步骤：11. the method for manufacturing noise reduction filter as claimed in claim 10, is characterized in that also comprising the following steps: 以焊接剂涂敷所述第一主电路图形和所述第二主电路图形中的每一个；以及coating each of the first main circuit pattern and the second main circuit pattern with solder; and 把涂敷有焊接剂的第一主电路导体和第二主电路导体分别焊接到由导电糊形成的第一螺旋状线圈图形和第三螺旋状线圈图形。The first and second main circuit conductors coated with solder are soldered to the first and third helical coil patterns formed of the conductive paste, respectively. 12．如权利要求11所述的制造噪声削减滤波器的方法，其特征在于涂敷有焊接剂的第一主电路导体和第二主电路导体中的每一个具有包括多层的层叠结构，从而形成具有提供所需剖面面积的厚度的层叠结构。12. The method of manufacturing a noise reduction filter according to claim 11, wherein each of the first main circuit conductor and the second main circuit conductor coated with solder has a laminated structure including a plurality of layers, thereby forming a A laminated structure of a thickness that provides the desired cross-sectional area. 13．一种制造噪声削减滤波器的方法，其特征在于包括以下步骤：13. A method of manufacturing a noise reduction filter, comprising the steps of: 制备多个滤波器电路；Prepare multiple filter circuits; 把所述多个滤波器电路装在里面组装有多个分开的核心的壳体中；以及housing the plurality of filter circuits in a housing in which the plurality of separate cores are assembled; and 用密封壳体的树脂材料填充滤波器电路与分开的核心之间的空间；filling the space between the filter circuit and the separated core with a resin material that seals the case; 其中由包括以下步骤的方法来制造所述多个滤波器电路中的每一个：wherein each of said plurality of filter circuits is manufactured by a method comprising the steps of: 在平板状的第一介电板的相对表面上形成第一和第二螺旋状线圈图形，从而第一和第二螺旋状线圈图形沿垂直于第一介电板平面的方向相互对准，所述第一和第二螺旋状线圈图形由导电糊形成且具有电感器的功能；First and second helical coil patterns are formed on opposite surfaces of the flat first dielectric plate so that the first and second helical coil patterns are aligned with each other in a direction perpendicular to the plane of the first dielectric plate, so that The first and second helical coil patterns are formed of conductive paste and have the function of an inductor; 通过把第一主电路导体键合到在所述第一介电板相对表面的一个表面上形成的所述第一螺旋状线圈图形来形成第一主电路图形，通过冲床的冲压而形成所述第一主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第一螺旋状线圈图形相同的形状；The first main circuit pattern is formed by bonding a first main circuit conductor to the first helical coil pattern formed on one of the opposite surfaces of the first dielectric board, the forming of the a first main circuit conductor such that the cross-sectional area of said conductor is large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the first helical coil pattern; 把第一接地线键合到在远离所述第一主电路图形的所述第一介电板另一个表面上形成的所述第二螺旋状线圈图形，所述第一接地线把从第一主电路图形经由所述第一介电板流入第二螺旋状线圈图形的包含噪声的电流引向接地端；bonding a first ground wire to the second helical coil pattern formed on the other surface of the first dielectric board away from the first main circuit pattern, the first ground wire connecting from the first The noise-containing current flowing into the second helical coil pattern from the main circuit pattern through the first dielectric plate is led to the ground terminal; 在平板状的第二介电板的相对表面上形成第三和第四螺旋状线圈图形，从而第三和第四螺旋状线圈图形沿垂直于第二介电板平面的方向相互对准，所述第三和第四螺旋状线圈图形由导电糊形成且具有电感器的功能；Third and fourth helical coil patterns are formed on opposite surfaces of the flat second dielectric plate so that the third and fourth helical coil patterns are aligned with each other in a direction perpendicular to the plane of the second dielectric plate, so that The third and fourth helical coil patterns are formed of conductive paste and have the function of inductors; 通过把第二主电路导体键合到在所述第二介电板相对表面的一个表面上形成的所述第三螺旋状线圈图形来形成第二主电路图形，通过冲床的冲压而形成所述第二主电路导体，从而所述导体的剖面面积大到足以使所需值的电流流过，且所述导体具有基本上与第三螺旋状线圈图形相同的形状；The second main circuit pattern is formed by bonding a second main circuit conductor to the third helical coil pattern formed on one of the opposite surfaces of the second dielectric board, and the second main circuit pattern is formed by punching of a punch press. a second main circuit conductor, whereby said conductor has a cross-sectional area large enough to allow a desired value of current to flow therethrough, and said conductor has substantially the same shape as the third helical coil pattern; 把第二接地线键合到在远离所述第二主电路图形的所述第二介电板另一个表面上形成的所述第四螺旋状线圈图形，所述第二接地线把从第二主电路图形经由所述第二介电板流入第四螺旋状线圈图形的包含噪声的电流引向接地端；以及bonding a second ground wire to the fourth helical coil pattern formed on the other surface of the second dielectric board away from the second main circuit pattern, the second ground wire connecting the second ground wire from the second A noise-containing current flowing from the main circuit pattern into the fourth helical coil pattern via the second dielectric plate is led to a ground terminal; and 在带有所述第一主电路图形的所述第一介电板与带有所述第二主电路图形的所述第二介电板之间插入平板状的绝缘板；a planar insulating plate is inserted between the first dielectric board with the first main circuit pattern and the second dielectric board with the second main circuit pattern; 其中所述第一主电路导体的一端连到所述第二主电路导体的一端，从而第一和第二主电路导体的另一端被分别用作输入端和输出端；wherein one end of said first main circuit conductor is connected to one end of said second main circuit conductor such that the other ends of the first and second main circuit conductors are used as input and output terminals, respectively; 带有第一主电路图形的第一介电板与带有第二主电路图形的第二介电板相结合，从而提供具有电感器功能和电容器功能的每个滤波器电路。The first dielectric board with the first main circuit pattern is combined with the second dielectric board with the second main circuit pattern, thereby providing each filter circuit with an inductor function and a capacitor function. 14．如权利要求13所述制造噪声削减滤波器的方法，其特征在于所述树脂材料包括包含预定比例无机填料的高分子聚合物树脂材料。14. A method of manufacturing a noise reduction filter according to claim 13, wherein said resin material comprises a high molecular polymer resin material containing a predetermined proportion of inorganic filler. 15．如权利要求13所述制造噪声削减滤波器的方法，其特征在于所述树脂材料包括硅树脂凝胶以及包含预定比例无机填料的高分子聚合物树脂材料，所述高分子聚合物树脂材料只填充壳体内部空间中每个滤波器电路的输入和输出端所在的一端部分，而所述硅树脂凝胶填充壳体内部空间中的其余部分。15. The method for manufacturing a noise reduction filter as claimed in claim 13, wherein said resin material comprises silicone resin gel and a high molecular polymer resin material containing a predetermined proportion of inorganic fillers, said high molecular polymer resin material is filled only The housing interior space is one end portion where the input and output terminals of each filter circuit are located, while the silicone gel fills the remaining portion in the housing interior space. 16．如权利要求13所述制造噪声削减滤波器的方法，其特征在于所述树脂材料包括硅树脂凝胶，在壳体上每个滤波器电路的输入和输出端所在的一端设置壳盖以固定输入和输出端。16. The method for manufacturing a noise reduction filter according to claim 13, wherein said resin material comprises silicone gel, and a cover is provided on the housing where the input and output ends of each filter circuit are located to fix the input and output.
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