CN102064002B - Network filter and manufacturing method thereof - Google Patents
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- CN102064002B CN102064002B CN201010515193A CN201010515193A CN102064002B CN 102064002 B CN102064002 B CN 102064002B CN 201010515193 A CN201010515193 A CN 201010515193A CN 201010515193 A CN201010515193 A CN 201010515193A CN 102064002 B CN102064002 B CN 102064002B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 101
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- 239000002966 varnish Substances 0.000 claims abstract description 32
- 230000008878 coupling Effects 0.000 claims description 34
- 238000010168 coupling process Methods 0.000 claims description 34
- 238000005859 coupling reaction Methods 0.000 claims description 34
- 238000004804 winding Methods 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 17
- 210000002435 tendon Anatomy 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 3
- 230000002000 scavenging effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000741 silica gel Substances 0.000 description 8
- 229910002027 silica gel Inorganic materials 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 239000013256 coordination polymer Substances 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the field of filters, and discloses a network filter and a manufacturing method thereof. In the network filter and the manufacturing method thereof which are provided by the invention, rib retaining walls are arranged on another two ends of a shell to facilitate weld penetration; copper wire wound iron cores are symmetrically arranged in a concave cavity, and varnish is filled on the surface of the concave cavity on which the copper wire wound iron cores are fixed so as to encapsulate the concave cavity; and copper wires with small diameters are adopted to wind small iron cores to ensure few crossings among wires, so the volume is reduced to adapt to the volume miniature developing tendency of the network filter. The distributed capacitance of the network filter is reduced by about 40 percent under the same condition by encapsulating the network filter with the varnish, the performance of the network filter is improved, the response time to network signals of the network filter is improved, the network transmission rate is improved, and the product yield is improved.
Description
Technical field
The present invention relates to filter field, in particular a kind of network filter and preparation method thereof.
Background technology
At present, network filter has been widely used in the communication network, and general lattice network device is provided with network filter, as is used for television set network interface, notebook network interface.Along with the continuous progress of informationization technology, electronic product more and more trends towards microminiaturized development, and the network filter volume also must adapt to microminiaturized development trend.
Existing common network filter comprises shell, pin and filtering unit, and the even embedding cloth of pin is at the shell two ends, and filtering unit is arranged on the inside grooves of shell, and filtering unit connects each pin respectively through lead-in wire.
The iron core that general filtering unit twines copper cash by some bands interconnects and forms; Because the iron core arrangement mode of prior art filtering unit is unreasonable, it is many that copper cash and copper cash intersect, and easily circuit formed certain influence; And what adopt all is thicker annular core; And it is also thicker to be wrapped on the iron core copper cash line footpath, makes that the volume of network filter is bigger, can't adapt to the development trend of network filter volume microminiaturization.
At present general network filter uses silica gel to carry out embedding; And the dielectric constant of silica gel probably is about 3.2; Probably all about 25-28PF, dielectric constant is big, causes distributed capacitance big for CP value (distributed capacitance) under the winding mode of 12.5 circles; Influence the performance of network filter easily, and cause the product fraction defective high easily.
Therefore, prior art awaits to improve and development.
Summary of the invention
Deficiency in view of above-mentioned prior art the object of the present invention is to provide a kind of network filter and preparation method thereof, and it is simple in structure; It is easy to pass through tin, and the iron core arrangement mode is reasonable, and volume is less; Improve the response time of network filter network signal simultaneously, improved network transmission speed.
Technical scheme of the present invention is following:
A kind of network filter manufacture method wherein, comprises step: adopt varnish to carry out embedding to network filter.
Described network filter manufacture method, wherein, the said step that adopts varnish to carry out embedding to network filter specifically comprises:
A, the square shell of a band cavity is set, and pin is set, and convex tendon shelves wall is set at its other two ends at the wherein two ends of this shell;
B, in the cavity of square shell, be provided with the iron core that a plurality of bands twine copper cash, and the copper cash of said winding iron core is connected said pin with the symmetry arrangement mode;
C, in the cavity that band twines the copper cash iron core is installed, pour into varnish, form network filter.
Described network filter manufacture method wherein, also comprises step:
D, the network filter product is put into supersonic wave cleaning machine carry out ultrasonic waves for cleaning, cleaning temperature is controlled to be 80 ℃, and scavenging period is 20 minutes;
Described network filter manufacture method wherein, also comprises step:
E, will passing through network filter that ultrasonic waves for cleaning crosses, to put into temperature be that 90 ℃ ± 10 ℃ baking is toasted, and stoving time is controlled to be 20 minutes.
Described network filter manufacture method, wherein, said steps A also comprises step: the off-center position, other two ends that said convex tendon barricade is arranged on said shell.
Described network filter manufacture method; Wherein, The iron core that said band twines copper cash is four, is followed successively by the first filtering iron core, vertical vertical second coupling iron core that is provided with, the 3rd coupling iron core of vertically vertical setting and the 4th filtering iron core that horizontal cross is provided with that horizontal cross is provided with.
A kind of network filter comprises the shell of being with cavity, embeds the pin at said shell two ends; And be packed in the enclosure cavity, band twines the iron core of copper cash; The copper cash that twines iron core connects said pin, and wherein, the iron core that said band twines copper cash is arranged in the said cavity with the symmetry arrangement mode, and is provided with the convex tendon barricade at the other two ends of said shell.
Described network filter, wherein, said convex tendon barricade is arranged on the off-center position, other two ends of said shell.
Described network filter; Wherein, The iron core that said band twines copper cash is four, is followed successively by the first filtering iron core, vertical vertical second coupling iron core that is provided with, the 3rd coupling iron core of vertically vertical setting and the 4th filtering iron core that horizontal cross is provided with that horizontal cross is provided with;
Said pin comprises the left pin of being located at the shell left end, is located at the right pin of shell right-hand member; Said right pin comprises the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin and the 6th pin that is arranged in order from top to bottom; Said left pin comprises the 12nd pin, the 11st pin, the 10th pin, the 9th pin, the 8th pin and the 7th pin that is arranged in order from top to bottom;
The left winding of the said second coupling iron core connects the 11st pin, the 12nd pin and the 10th pin of said left end pin through signal lead, and the right winding of the said second coupling iron core connects the 2nd pin, the 3rd pin and the 1st pin of said right-hand member pin through signal lead;
The said first filtering iron core is connected between the 2nd pin, the 1st pin of right winding and the said right-hand member pin of the said second coupling iron core;
The left winding of said the 3rd coupling iron core connects the 8th pin, the 9th pin and the 7th pin of said left end pin through signal lead, and the right winding of said the 3rd coupling iron core connects the 4th pin, the 6th pin and the 5th pin of said right-hand member pin through signal lead;
Said the 4th filtering iron core is connected between the 4th pin, the 5th pin of right winding and the said right-hand member pin of said the 3rd coupling iron core.
Described network filter wherein, pours into varnish on the cavity that band winding copper cash iron core is installed.
Network filter provided by the present invention and preparation method thereof is provided with the convex tendon barricade owing to adopted at the other two ends of said shell, is convenient to tin; Owing to adopted the iron core that said band twines copper cash to be arranged in the said cavity with the symmetry arrangement mode, and be employed in and be fixed with the pocket surfaces that band twines the copper cash iron core and be filled with varnish so that it is encapsulated, it can adopt the copper cash in less line footpath to twine little iron core; It is few that line and line are intersected; Reduce volume, can adapt to this long-pending microminiaturized development trend of network filter, and functions such as that varnish not only has is fixing, high voltage protective, protection against the tide; Also has less dielectric constant; The present invention uses varnish to carry out CP value (distributed capacitance) minimizing about 40% under its equal conditions of embedding, obviously is better than existing technical parameter, and integral body has reduced the distributed capacitance of network filter; Improved the performance of network filter; Improve the response time of network filter network signal, improved network transmission speed, improved the product yield simultaneously.
If fill with silica gel in addition, filler can fill up between the whole lead, and uses varnish, only understands the very thin surperficial one deck that covers, and so also helps the control of distributed capacitance.
Description of drawings
Fig. 1 is the network filter manufacture method flow chart of the embodiment of the invention;
Fig. 2 is the network filter end view of the embodiment of the invention;
Fig. 3 is the network filter vertical view of the embodiment of the invention;
Fig. 4 is the network filter manufacture method flow chart further of the embodiment of the invention;
Fig. 5 is the network filter circuit theory diagrams of the embodiment of the invention.
Embodiment
The present invention provides a kind of network filter and preparation method thereof, and is clearer, clear and definite for making the object of the invention, technical scheme and effect, below with reference to accompanying drawing and give an actual example to further explain of the present invention.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of network filter manufacture method that the embodiment of the invention provides mainly is to adopt varnish to carry out embedding to the network filter that generates.Because existing network filter all is to use silica gel to carry out embedding mostly, causes distributed capacitance big, influences the performance of network filter easily, and cause the product fraction defective high easily.
The varnish that adopts among the present invention is insulating varnish again.Be to be the basis with the high molecular polymer, can be solidified into dielectric film or the whole important insulating material of insulation under certain conditions.Generally form by lacquer base, solvent or diluent and auxiliary material three parts.
The varnish main component that the present invention adopts is resin and solvent or resin, oil and solvent.Network filter of the present invention is carried out not only having insulation function after the embedding, can also show the original decorative pattern of network filter of the present invention, and be prone to do durable, can be acidproof and oily.
As shown in Figure 1, said network filter to generation adopts varnish to carry out embedding and specifically may further comprise the steps:
Step S910, the square shell 100 of a band cavity 110 is set, as shown in Figures 2 and 3, and pin 200 is set, and convex tendon shelves wall 22 is set at its other two ends at the wherein two ends of this shell 100.
Through this convex tendon barricade 22 is set, when vibrating disk selects its welding, can not contact with the electroplax board plane fully on its four limits that pin 200 those sides are set, can be convenient to tin making scolding tin to ooze out from welding hole, welding is cut thoroughly, and is convenient to inspection tin situation thoroughly.Preferably, said convex tendon barricade 22 is arranged on the off-center position, other two ends of said shell 100, makes things convenient for skeleton manufacturer to utilize vibrating disk to screen direction, enhance productivity.
Step S920, in the cavity 110 of square shell 100, be provided with the iron core 300 that a plurality of bands twine copper cash, and the copper cash of said winding iron core is connected said pin 200 with the symmetry arrangement mode.
As shown in Figure 3; The iron core 300 that said band twines copper cash is four, the 4th filtering iron core 340 that the first filtering iron core 310 that is followed successively by that horizontal cross is provided with, the second coupling iron core 320 that vertically vertically is provided with, the 3rd coupling iron core 330 that vertically vertically is provided with and horizontal cross are provided with.The said first filtering iron core 310 is symmetrical set with said the 4th filtering iron core 340, and the said second coupling iron core 320 is symmetrical set with said the 3rd coupling iron core 320.Certainly the iron cores that are arranged in the said cavity 110 can be with other symmetric mode settings, and its main purpose is to reduce intersecting of line and line as far as possible.
The copper cash that can obviously find out present embodiment winding iron core from Fig. 3 for once intersects, and its distributed capacitance is little, has reduced the influence to circuit.Can adopt the little iron core of copper cash winding in less line footpath, reduce volume, can adapt to the development trend of network filter volume microminiaturization.It is few that line and line are intersected, and reduces distributed capacitance between the line of coil, the response time of improving network signal, improves network transmission speed
Step S930, pour into varnish being equipped with on the cavity 110 that band twines the copper cash iron core, form network filter.
At present general network transformer uses silica gel to carry out embedding; CP value (distributed capacitance) under the winding mode of 12.5 circles is probably all about 25-28PF; And the present invention uses varnish to carry out under its equal conditions of embedding the CP value about 13-18PF; Reduced about 40%, obviously be better than existing technical parameter.
Be arrangement of conductors CALCULATION OF CAPACITANCE mode below: the electric capacity computing formula of parallel conductive line segment capable of using is estimated:
C＝(π×ε×L)÷[ln(D÷r)]
Wherein: ε-dielectric constant of air, get 8.85 * 10^ (12) F/m;
L-conductor length (m);
The D-traverse shaft is distance (m) in the heart;
R-lead radius (m).
Capacitance is directly proportional with L.
Wherein ε is the dielectric constant of air, probably is about 1, and other any materials that are filled in therebetween all can be bigger than the dielectric constant of air; For example: the dielectric constant of silica gel probably is about 3.2, and the varnish dielectric constant is probably about 2.2-2.5, so the present invention adopts varnish to carry out embedding; Have less dielectric constant, reduced its distributed capacitance, thereby reduced influence circuit; Improved the performance of network filter; Improve the response time of network filter network signal, improved network transmission speed, improved the product yield simultaneously.
In addition, if fill with silica gel, filler can fill up between the whole lead, and uses varnish, only understands the very thin surperficial one deck that covers, and so also helps the control of distributed capacitance.
Described network filter manufacture method, as shown in Figure 4 further, also comprise step:
Step S940, the network filter product is put into supersonic wave cleaning machine carry out ultrasonic waves for cleaning, cleaning temperature is controlled to be 80 ℃, and scavenging period is 20 minutes; In this step, the network filter product placement that at first step S930 is formed is to tool; Then product is put into supersonic wave cleaning machine, the depth of water should remain on more than the 8cm in the rinse bath; Cleaning temperature is about 80 ℃, and the ultrasonic waves for cleaning time is about 20 minutes.
Described network filter manufacture method, as shown in Figure 4, also comprise step:
Step S950, will passing through network filter that ultrasonic waves for cleaning crosses, to put into temperature be that 90 ℃ ± 10 ℃ baking is toasted, and stoving time is controlled to be 20 minutes.
The filter product that baking is accomplished also need carry out outward appearance and detect, and method is: use microscope; Emphasis inspection dry joint, scolding tin such as short circuit are bad, and the tin point can not excessive (the tin point can not surpass two pin center lines); Magnet ring cannot surpass enclosure depth 80%, scolding tin white line length: 0.4mm Max.Detect through a large amount of, the present invention uses behind the varnish distributed capacitance instead probably about 13-18PF (pico farad), and producing fraction defective does not have basically, has improved the yield of product.
Based on the network filter manufacture method of the foregoing description, the embodiment of the invention also provides a kind of network filter, as shown in Figures 2 and 3, comprises the shell 100 of being with cavity 110, embeds the pin 200 at said shell 100 two ends; And be packed in 110 li of shell 100 internal cavities, band twines the iron core 300 of copper cash.Wherein, the iron core 300 that said band twines copper cash is arranged in the said cavity 110 with the symmetry arrangement mode, and is provided with convex tendon barricade 22 at the other two ends of said shell 100.
Through this convex tendon barricade 22 is set, when vibrating disk selects its welding, can not contact with the electroplax board plane fully on its four limits that pin 200 those sides are set, can be convenient to tin making scolding tin to ooze out from welding hole, welding is cut thoroughly, and is convenient to inspection tin situation thoroughly.Preferably, said convex tendon barricade 22 is arranged on the off-center position, other two ends of said shell 100.Like this, when selecting its welding, can also discern the direction of its installation, improve the speed of identification, improve operating efficiency through the convex tendon barricade 22 of its off-center position through vibrating disk.
The described network filter of embodiment; As shown in Figure 3; The iron core 300 that said band twines copper cash is four, the 4th filtering iron core 340 that the first filtering iron core 310 that is followed successively by that horizontal cross is provided with, the second coupling iron core 320 that vertically vertically is provided with, the 3rd coupling iron core 330 that vertically vertically is provided with and horizontal cross are provided with.The said first filtering iron core 310 is symmetrical set with said the 4th filtering iron core 340, and the said first coupling iron core 320 is symmetrical set with said the 3rd coupling platform iron core 320.Certainly the iron cores that are arranged in the said cavity 110 can be with other symmetric mode settings, and its main purpose is to reduce intersecting of line and line as far as possible.The copper cash that can obviously find out present embodiment winding iron core from Fig. 1 for once intersects, and its distributed capacitance is little, has reduced the influence to circuit.
As shown in Figure 3, the copper cash that twines iron core connects said pin 200, and said pin comprises the left pin of being located at the shell left end, is located at the right pin of shell right-hand member; Said right pin comprises the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin and the 6th pin that is arranged in order from top to bottom; Said left pin comprises the 12nd pin, the 11st pin, the 10th pin, the 9th pin, the 8th pin and the 7th pin that is arranged in order from top to bottom.
Further; Like Fig. 5 and shown in Figure 3; The left winding of the said second coupling iron core 320 connects the 11st pin, the 12nd pin and the 10th pin of said left end pin through signal lead, and the right winding of the said second coupling iron core 320 connects the 2nd pin, the 3rd pin and the 1st pin of said right-hand member pin through signal lead.
And the said first filtering iron core 310 is connected between the 2nd pin, the 1st pin of right winding and the said right-hand member pin of the said second coupling iron core 320.
The left winding of said the 3rd coupling iron core 330 connects the 8th pin, the 9th pin and the 7th pin of said left end pin through signal lead, and the right winding of said the 3rd coupling iron core 330 connects the 4th pin, the 6th pin and the 5th pin of said right-hand member pin through signal lead.Said the 4th filtering iron core 340 is connected between the 4th pin, the 5th pin of right winding and the said right-hand member pin of said the 3rd coupling iron core 330.
Further, described network filter pours into varnish on the cavity that band winding copper cash iron core is installed.
In sum, network filter provided by the present invention and preparation method thereof is provided with the convex tendon barricade owing to adopted at the other two ends of said shell, is convenient to tin; Owing to adopted the iron core that said band twines copper cash to be arranged in the said cavity with the symmetry arrangement mode, and be employed in and be fixed with the pocket surfaces that band twines the copper cash iron core and be filled with varnish so that it is encapsulated, it can adopt the copper cash in less line footpath to twine little iron core; It is few that line and line are intersected; Reduce volume, can adapt to the development trend of network filter volume microminiaturization, and function such as that varnish not only has is fixing, high voltage protective, protection against the tide; Also has less dielectric constant; The present invention uses varnish to carry out CP value (distributed capacitance) minimizing about 40% under its equal conditions of embedding, obviously is better than existing technical parameter, and integral body has reduced the distributed capacitance of network filter; Improved the performance of network filter; Improve the response time of network filter network signal, improved network transmission speed, improved the product yield simultaneously.
If fill with silica gel in addition, filler can fill up between the whole lead, and uses varnish, only understands the very thin surperficial one deck that covers, and so also helps the control of distributed capacitance.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, concerning those of ordinary skills, can improve or conversion that all these improvement and conversion all should belong to the protection range of accompanying claims of the present invention according to above-mentioned explanation.
Claims (6)
1. a network filter manufacture method is characterized in that, comprises step: adopt varnish to carry out embedding to network filter;
Said varnish comprises resin and solvent or resin, oil and solvent;
The said step that adopts varnish to carry out embedding to network filter specifically comprises:
A, the square shell of a band cavity is set, and pin is set, and the convex tendon barricade is set at its other two ends at the wherein two ends of this shell;
B, in the cavity of square shell, be provided with the iron core that a plurality of bands twine copper cash, and the copper cash of said winding iron core is connected said pin with the symmetry arrangement mode;
C, in the cavity that band twines the copper cash iron core is installed, pour into varnish, form network filter;
Said steps A also comprises step: the off-center position, other two ends that said convex tendon barricade is arranged on said shell.
2. network filter manufacture method according to claim 1 is characterized in that, also comprises step:
D, the network filter product is put into supersonic wave cleaning machine carry out ultrasonic waves for cleaning, cleaning temperature is controlled to be 80 ℃, and scavenging period is 20 minutes.
3. network filter manufacture method according to claim 2 is characterized in that, also comprises step:
E, will passing through network filter that ultrasonic waves for cleaning crosses, to put into temperature be that 90 ℃ ± 10 ℃ baking is toasted, and stoving time is controlled to be 20 minutes.
4. network filter manufacture method according to claim 1; It is characterized in that; The iron core that said band twines copper cash is four, is followed successively by the first filtering iron core, vertical vertical second coupling iron core that is provided with, the 3rd coupling iron core of vertically vertical setting and the 4th filtering iron core that horizontal cross is provided with that horizontal cross is provided with.
5. a network filter comprises the shell of being with cavity, embeds the pin at said shell two ends; And be packed in the enclosure cavity, band twines the iron core of copper cash; The copper cash that twines iron core connects said pin, it is characterized in that, the iron core that said band twines copper cash is arranged in the said cavity with the symmetry arrangement mode, and is provided with the convex tendon barricade at the other two ends of said shell;
Said convex tendon barricade is arranged on the off-center position, other two ends of said shell;
Wherein, on the cavity that band winding copper cash iron core is installed, pour into varnish;
Said varnish comprises resin and solvent or resin, oil and solvent.
6. network filter according to claim 5; It is characterized in that; The iron core that said band twines copper cash is four, is followed successively by the first filtering iron core, vertical vertical second coupling iron core that is provided with, the 3rd coupling iron core of vertically vertical setting and the 4th filtering iron core that horizontal cross is provided with that horizontal cross is provided with;
Said pin comprises the left pin of being located at the shell left end, is located at the right pin of shell right-hand member; Said right pin comprises the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin and the 6th pin that is arranged in order from top to bottom; Said left pin comprises the 12nd pin, the 11st pin, the 10th pin, the 9th pin, the 8th pin and the 7th pin that is arranged in order from top to bottom;
The left winding of the said second coupling iron core connects the 11st pin, the 12nd pin and the 10th pin of said left end pin through signal lead, and the right winding of the said second coupling iron core connects the 2nd pin, the 3rd pin and the 1st pin of said right-hand member pin through signal lead;
The said first filtering iron core is connected between the 2nd pin, the 1st pin of right winding and the said right-hand member pin of the said second coupling iron core;
The left winding of said the 3rd coupling iron core connects the 8th pin, the 9th pin and the 7th pin of said left end pin through signal lead, and the right winding of said the 3rd coupling iron core connects the 4th pin, the 6th pin and the 5th pin of said right-hand member pin through signal lead;
Said the 4th filtering iron core is connected between the 4th pin, the 5th pin of right winding and the said right-hand member pin of said the 3rd coupling iron core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010515193A CN102064002B (en) | 2010-10-20 | 2010-10-20 | Network filter and manufacturing method thereof |
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| CN201010515193A CN102064002B (en) | 2010-10-20 | 2010-10-20 | Network filter and manufacturing method thereof |
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| CN102064002B true CN102064002B (en) | 2012-10-17 |
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| CN112542307A (en) * | 2020-11-24 | 2021-03-23 | 鸿磬电子（东莞）有限公司 | Network transformer preparation method |
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|---|---|---|---|---|
| CN2072295U (en) * | 1990-04-24 | 1991-02-27 | 北京理工大学 | High-performance small power filter |
| CN2482195Y (en) * | 2001-05-15 | 2002-03-13 | 王庆旺 | Integrated transformer |
| CN1988070A (en) * | 2006-10-20 | 2007-06-27 | 中山市三礼电子有限公司 | Method for producing adhesive sheet type plastic sealed inductance |
| CN201178024Y (en) * | 2008-01-05 | 2009-01-07 | 富士康(昆山)电脑接插件有限公司 | Excitation coil module and electric connector equipped with the module |
| CN201274220Y (en) * | 2008-07-25 | 2009-07-15 | 山东达驰电气有限公司 | Dry transformer for ship |
-
2010
- 2010-10-20 CN CN201010515193A patent/CN102064002B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072295U (en) * | 1990-04-24 | 1991-02-27 | 北京理工大学 | High-performance small power filter |
| CN2482195Y (en) * | 2001-05-15 | 2002-03-13 | 王庆旺 | Integrated transformer |
| CN1988070A (en) * | 2006-10-20 | 2007-06-27 | 中山市三礼电子有限公司 | Method for producing adhesive sheet type plastic sealed inductance |
| CN201178024Y (en) * | 2008-01-05 | 2009-01-07 | 富士康(昆山)电脑接插件有限公司 | Excitation coil module and electric connector equipped with the module |
| CN201274220Y (en) * | 2008-07-25 | 2009-07-15 | 山东达驰电气有限公司 | Dry transformer for ship |
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| Publication number | Publication date |
|---|---|
| CN102064002A (en) | 2011-05-18 |
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