CN115938729B - Common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference - Google Patents
Common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference Download PDFInfo
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- CN115938729B CN115938729B CN202310000149.9A CN202310000149A CN115938729B CN 115938729 B CN115938729 B CN 115938729B CN 202310000149 A CN202310000149 A CN 202310000149A CN 115938729 B CN115938729 B CN 115938729B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses an anti-electromagnetic interference common mode differential mode integrated flat coil filter inductor, which comprises a first metal shielding plate, wherein a storage rod which is arranged front and back is arranged on the outer wall of one side of the first metal shielding plate, a first inserting rod is arranged at one end of each of two groups of storage rods, a storage sleeve is sleeved on the outer surface of each of the two groups of first inserting rods, a second metal shielding plate is arranged on the outer wall of the other side of each of the storage sleeves, second inserting rods are embedded in the four groups of jacks, and baffles are arranged on the front faces of the second inserting rods and the back faces of the second inserting rods; the bottom ends of the wiring terminals penetrate through the bottom walls of the first metal shielding plate and the second metal shielding plate to be provided with pins. According to the utility model, the first metal shielding plate, the object placing sleeve and the second metal shielding plate are arranged, the baffle plates are arranged on two sides of the first metal shielding plate and the second metal shielding plate through the embedding of the second inserting rod and the inserting holes, and the pins are inserted into the circuit board, so that convenience can be provided for subsequent overhaul work.
Description
Technical Field
The utility model relates to the technical field of filter inductors, in particular to a common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference.
Background
The filter inductor has the characteristics of high-frequency pass low-frequency resistance, namely, has a filtering function, reduces ripple voltage in the whole electronic circuit, and filters common mode interference and differential mode interference in the circuit, however, most of the conventional filter inductors are directly welded on a circuit board when in use, are inconvenient to disassemble, and have certain defects, so that the common mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference is urgently needed.
The defects of the existing filter inductor are as follows:
1. patent document CN216212719U discloses a filter inductor convenient for fixed installation, including a left clamping plate, a left positioning insert block, a left moving bottom block, a miniature screw rod, a rotating deflector wheel and a small hand rotating screw, wherein the miniature screw rod is arranged at the middle position inside a stable supporting plate, the right end face of the miniature screw rod is provided with the rotating deflector wheel, the small hand rotating screw is arranged at the upper side inside the rotating deflector wheel, the left moving bottom block is arranged at the left side inside the stable supporting plate, the left clamping plate is welded at the middle position of the upper end face of the left moving bottom block, the left positioning insert block is arranged at the right end face of the left clamping plate, the utility model solves the problem that the original filter inductor is inconvenient to install, fix and detach, the utility model has reasonable structure, convenient clamping, positioning and detachment for the filter inductor are convenient to maintain, but the above-mentioned publication mainly considers how to clamp the filter inductor, the convenience in maintenance is improved, the process is complicated in assembly process and the flexibility is poor;
2. patent document CN212570593U discloses a common mode filter inductor. The utility model provides a common mode filter inductance, includes magnetic core, two coils, position sleeve, base, pin and protective sheath, the bottom of magnetic core with the top fixed connection of base, two the coil symmetry is around locating on the magnetic core, the position sleeve cover is established two the coil outside, the pin is fixed to be set up in the base bottom, be equipped with the wiring groove around the base. The utility model wraps and fixes the outer surface of the coil, so that the use effect of the common-mode filter inductor is prevented from being influenced due to the fact that the positions among coils are changed after long-time use or collision, and the four wiring grooves are arranged on the two sides of the base, so that the positioning of the two ends of the coil is facilitated, the operation is convenient, the operation is simple, and the working efficiency is greatly improved;
3. patent document CN209183376U discloses a filter inductor, belong to the inductance field, a filter inductor, the on-line screen storage device comprises a base, the upper end of base is provided with the mount pad, the upper end joint of mount pad has the cassette, the cassette is provided with the stopper, the lower extreme of cassette is provided with the shell fragment, the lower extreme of shell fragment is provided with the buckle, the cassette is provided with the second semicircle groove, the joint has the magnetic core in the second semicircle groove, the surface of magnetic core is provided with the arch, the outside of magnetic core is wound up around the coil, the outside parcel of coil has the shielding piece, the outside parcel of shielding piece has the aluminium foil, it adopts mount pad and cassette joint mode to assemble the magnetic core, make equipment convenient and fast, be convenient for the staff to carry out equipment work, and the heat conduction silica gel cover is set up to the coil outside, make the radiating state of coil better through the heat conduction silica gel material, but the filter inductor in above-mentioned publication mainly considers improving the radiating effect of coil through setting up the heat conduction silica gel cover in the outside of coil, it is poor to take into account the anti-electromagnetic interference effect of current filter inductor when using into account, usually need in the circuit welding, the multiunit filter inductor is poor practicality;
4. patent document CN214898029U discloses a filter inductance of noise reduction low magnetic loss, including E type iron core, I type iron core and the wire package of suit at E type iron core center post of several, establish locking clamp in E type iron core and I type iron core range upon range of the end outside, locking clamp include the splint frame with E type iron core and I type iron core size homophase adaptation, splint frame is parallelogram. Through the setting of locking anchor clamps for inductance itself equipment and its assembly when complete machine equipment, easy operation, convenient, the precision is high, efficient, and inductance overall structure is stable, and the noise is little, and the magnetic loss is little, and inductance Q value is high. The clamping plate frames are arranged, so that each layer of E-shaped iron cores and each layer of I-shaped iron cores are spliced stably, horizontal transverse and longitudinal offset does not exist, movement among the layers of iron cores in the use process is prevented, the overall structure stability of the iron cores is high, and the working noise of the inductor is low; through reducing splice quantity, save wire winding support for inductance equipment is simple convenient, and the precision is high, efficient, but the filter inductance among the above-mentioned publication mainly considers how to improve the efficiency of equipment inductance, does not consider current filter inductance and does not have limit structure's problem when using.
Disclosure of Invention
The utility model aims to provide a common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-electromagnetic interference is with integrative flat coil filter inductance of common mode differential mode, includes metal shield board one, metal shield board one is "L" font, the thing pole of putting of arranging around is installed to one side outer wall of metal shield board one, two sets of thing pole one is all installed to one end of putting, two sets of the surface of inserting pole one all cup joints and installs and put the thing cover, and put one side outer wall of thing cover and put one end of thing pole and laminate mutually;
the outer wall of the other side of the storage sleeve is provided with a second metal shielding plate, the front and the back of the first metal shielding plate and the second metal shielding plate are respectively provided with an inserting rod II, inserting rods II are respectively embedded in the four groups of inserting holes, the front surfaces of the two groups of inserting rods II and the back surfaces of the two groups of inserting rods II are respectively provided with a baffle, and the bottom walls of the first metal shielding plate and the second metal shielding plate are respectively provided with connecting terminals which are arranged in a front-back symmetrical mode;
the bottom ends of the wiring terminals penetrate through the bottom walls of the first metal shielding plate and the second metal shielding plate to be provided with pins.
Preferably, the storage tank is all installed to the surface that metal shield plate one and metal shield plate two are close to each other, and two sets of storage tanks are located two sets of thing poles and two sets of middle of putting the thing cover respectively, and the laminating of one side outer wall of two sets of storage tanks is in the same place, and the top of storage tank runs through and is provided with the notch, and sealed lid is installed to the inside gomphosis of notch, and the top of storage tank is provided with keeps off the groove, keeps off the inside gomphosis of groove and installs the silica gel area, and the one end of silica gel area is connected with sealed outer surface of lid, and radiator fan is installed in the front of storage tank is embedded.
Preferably, the top of the first metal shielding plate and the top of the second metal shielding plate are respectively provided with a connecting hole which is arranged front and back, the inside of each of the four groups of connecting holes is provided with a third inserting rod in a jogged mode, the top ends of the third inserting rods of the four groups of connecting rods are respectively provided with a connecting rod, and the front and back groups of connecting rods are respectively provided with a second connecting rod; the connecting plate is all installed at the top of connecting rod, and the copper sheet first is cup jointed and is installed to the surface that two sets of connecting plates are close to each other, and the copper sheet second of evenly arranging is all cup jointed and installed to the surface that put thing pole and put thing cover, and the wiring board is all installed to one side outer wall of two copper sheets first of the outside and copper sheet second, and the go-between is installed to the inner surface nest of wiring board, and the surface mounting that upper and lower two sets of go-between are close to each other has the copper line.
Preferably, the top of metal shield plate one and metal shield plate two all runs through and is provided with spacing hole, and the surface of inserted bar two is provided with puts the thing hole, and the spring is installed to the diapire of putting the thing hole, and the pin is installed on the top of spring, and the pin is located the inboard of putting the thing hole, and the pin is located the inboard of spacing hole.
Preferably, the second metal shielding plate and the first metal shielding plate are combined to form a concave structure, and the surfaces of the two groups of baffles, which are close to each other, are respectively attached to the front surface and the back surface of the first metal shielding plate and the front surface and the back surface of the second metal shielding plate;
the bottoms of the two groups of storage boxes are respectively connected with the bottom walls of the first metal shielding plate and the second metal shielding plate, the inner wall of one side of the baffle groove is communicated with the inner surface of the notch, and the sealing cover and the silicon tape are positioned on the same horizontal plane with the storage boxes;
the copper sheet II is located the inboard of two sets of baffles, and the storage tank is located the centre of copper sheet II, and the connecting plate is located the top of metal shield plate I and metal shield plate II, and the top wiring board is located the below of connecting plate.
Preferably, a partition board is installed on the inner wall of one side of the storage box, the partition board is L-shaped, the top of the partition board is connected with the top wall of the storage box, paraffin is filled in a space formed by the storage box and the partition board, and the cooling fan is located above the partition board.
Preferably, the tops of the two groups of storage boxes are respectively provided with evenly arranged heat dissipation holes in a penetrating mode, and the heat dissipation holes are located on one side of the baffle groove.
Preferably, a pulling plate is arranged at the top of the silicon tape, and the pulling plate is in a strip shape.
Preferably, the working steps of the filter inductor are as follows:
s1, before the filter inductor is used, firstly, sleeving a second copper sheet on the outer surfaces of the object placing rod and the object placing sleeve, and then pushing a first metal shielding plate so as to drive a first inserting rod to be inserted into the object placing sleeve;
s2, connecting the second copper sheet with the wiring terminal, and then completing the assembly of the common-mode differential-mode integrated flat coil filter inductor, wherein in the subsequent use process, only pins are required to be inserted into the circuit board, so that convenience can be provided for subsequent overhaul work to a certain extent;
s3, when the filter inductor is used, the inserting rod III can be inserted into the connecting hole until the bottom end of the connecting rod is attached to the tops of the first metal shielding plate and the second metal shielding plate;
s4, when the filter inductor is used, heat generated during operation of the filter inductor can be absorbed through melting of paraffin in the storage box, and the cooling fan can be started, so that heat around the copper sheet II can be extracted through the cooling holes, and the service life of the filter inductor can be prolonged to a certain extent.
Preferably, in the step S1, the method further includes the following steps:
s11, then pressing down the stop lever, inserting the second insert rod into the jack, and upwards bouncing the stop lever under the action of the spring and inserting the stop lever into the limiting hole along with the movement of the second insert rod, and then fixing the baffle plate on the front surface and the back surface of the first metal shielding plate and the second metal shielding plate, so that a certain protection effect is achieved;
s12, paraffin is put into the storage box through the notch, the sealing cover is plugged into the notch until the silicon tape and the sealing cover are respectively embedded with the baffle groove and the notch, and then the paraffin can be placed in a space formed by the storage box and the baffle plate;
in the step S3, the method further includes the following steps:
and S31, connecting rings on the first copper sheet wiring board and the second copper sheet wiring board can be connected together through copper wires, so that the anti-interference capability of the circuit can be improved to a certain extent through parallel connection of a plurality of groups of filter inductors.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the first metal shielding plate, the object placing rod, the first inserting rod, the object placing sleeve, the wiring terminal, the pin and the second metal shielding plate are arranged, before the filter inductor is used, the second copper sheet is firstly sleeved on the surfaces of the object placing rod and the object placing sleeve, and then the first metal shielding plate is pushed, so that the first inserting rod can be driven to be inserted into the object placing sleeve, then the first metal shielding plate and the second metal shielding plate can be connected together, then the second inserting rod is pushed to be embedded with the jack, then the baffle can be arranged on the front surface and the back surface of the first metal shielding plate and the second metal shielding plate, and in the subsequent use process, the second copper sheet is only required to be connected with the wiring terminal, and the pin is inserted into the circuit board, so that convenience can be provided for subsequent overhaul work to a certain extent.
2. According to the utility model, the storage box, the baffle groove, the sealing cover, the silicon tape, the cooling fan and the notch are arranged, before the filter inductor is used, a proper amount of paraffin blocks are firstly put into the storage box through the notch, the sealing cover is plugged into the notch until the strand tape can be embedded with the baffle groove, in the subsequent use process of the filter inductor, the heat generated when the filter inductor works can be absorbed through melting of the paraffin blocks, the cooling fan can be started to dissipate heat, the service life of the filter inductor can be prolonged to a certain extent, and the influence of the heat on the filter inductor is reduced.
3. According to the utility model, the inserting rod III is inserted into the connecting hole through the connecting hole, the copper sheet I, the wiring board, the connecting ring, the copper sheet II and the connecting hole until the bottom of the connecting rod can be attached to the tops of the metal shielding plate I and the metal shielding plate II, then the connecting plate can be arranged above the filter inductor, then the copper sheet I and the connecting ring on the copper sheet II are connected together through the copper wire, and then the anti-interference capability of the filter inductor can be increased.
4. According to the utility model, the storage hole, the spring, the stop lever, the limiting hole and the baffle are arranged, before the baffle is arranged, the stop lever is firstly pressed downwards, so that the spring can be downwards extruded, then the stop lever can move along with the movement of the second inserting rod in the inserting hole until the stop lever moves to the limiting hole, then the stop lever can be inserted into the limiting hole under the action of the spring, and then the baffle can be fixed on the front surface and the back surface of the first metal shielding plate and the second metal shielding plate through the jogging of the stop lever and the limiting hole.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view illustrating an assembled structure of the storage case according to the present utility model;
FIG. 3 is a schematic diagram of an assembled structure of a third insert rod according to the present utility model;
FIG. 4 is a schematic plan assembly view of the storage case according to the present utility model;
FIG. 5 is a schematic diagram of an assembled structure of a first metal shielding plate according to the present utility model;
FIG. 6 is a schematic diagram of an assembled structure of a second copper sheet according to the present utility model;
FIG. 7 is a schematic view of an assembled structure of a stop lever of the present utility model;
fig. 8 is a flow chart of the operation of the present utility model.
In the figure: 1. a first metal shielding plate; 2. a storage rod; 3. the first inserting rod is arranged; 4. a storage sleeve; 5. a jack; 6. the second inserting rod is arranged; 7. a baffle; 8. a connection terminal; 9. pins; 10. a second metal shielding plate; 11. a storage box; 12. a blocking groove; 13. sealing cover; 14. a silicone tape; 15. pulling a plate; 16. a heat radiation hole; 17. a heat radiation fan; 18. a notch; 19. the inserting rod III; 20. a connecting rod; 21. a connecting plate; 22. a first copper sheet; 23. a wiring board; 24. a connecting ring; 25. copper wire; 26. a second copper sheet; 27. a connection hole; 28. a storage hole; 29. a spring; 30. a stop lever; 31. a limiting hole; 32. a partition board.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 5, 7 and 8, an embodiment of the present utility model provides: the utility model provides an anti-electromagnetic interference is with flat coil filter inductance of common mode differential mode, including metal shield plate one 1, metal shield plate two 10, put thing hole 28 and spacing hole 31, metal shield plate one 1 is "L" font, the thing pole 2 of putting of arranging around being installed to one side outer wall of metal shield plate one 1, insert pole one 3 is all installed to two sets of thing poles 2's one end, the surface of two sets of insert poles one 3 all cup joints and installs and put thing cover 4, and put one side outer wall of thing cover 4 and put thing pole 2's one end and laminate mutually, metal shield plate two 10 is installed to the opposite side outer wall of putting thing cover 4, metal shield plate one 1 and metal shield plate two 10's front and back all are provided with jack 5, the inside of four sets of jack 5 is all gomphosis and is installed insert pole two 6, baffle 7 are all installed to the front of two sets of insert poles two sets of front and rear, the diapire of insert pole two 6 of metal shield plate two, terminal 8 of the bottom wall of symmetrical arrangement all install front and rear, metal shield plate one end 8 runs through metal shield plate one side 1 and metal shield plate two bottom wall 10 and installs the metal shield plate two and installs the bottom wall 10 and is located the metal shield plate two, the top of the side of the metal shield plate two is arranged with the metal shield plate two side 10, the top of the metal shield plate two is arranged with the metal shield plate two side of the front side of the hole 30, the top of the metal shield plate 2 is arranged with the metal shield plate 2, the top of the front side of the metal shield plate is arranged with the metal shield plate 2, the top is provided with the metal shield plate 2, the top is 30, the top is provided with the top of the metal shield plate is 30, and is provided with the top and is 30, the top is provided with the metal shield plate is placed with the bottom and has the bottom plate 10, and has the bottom shield plate 10, has the bottom shield plate hole 28, has the bottom hole 28 and has the bottom shield hole 28 and has the bottom hole 28 hole is used.
Further, when the filter inductor is used, the copper sheet II 26 is firstly sleeved on the surfaces of the object placing rod 2 and the object placing sleeve 4, the metal shielding plate I1 is pushed until the inserting rod I3 can be embedded with the object placing sleeve 4, then the stop lever 30 is pressed downwards until the stop lever 30 can downwards press the spring 29 in the object placing hole 28, the inserting rod II 6 is inserted into the jack 5, then the baffle 7 is pushed, so that the inserting rod II 6 can be driven to move in the jack 5, then the stop lever 30 can be inserted into the limiting hole 31 under the action of the spring 29, then the baffle 7 can be installed on the front surface and the back surface of the metal shielding plate I1 and the metal shielding plate II 10 through the embedding of the stop lever 30 and the limiting hole 31, the copper sheet II 26 and the connecting terminal 8 are connected together, then the filter inductor can be assembled, and when the filter inductor is required, the pin 9 is only required to be inserted into the circuit board, so that the convenience of subsequent overhaul can be improved to a certain extent.
Referring to fig. 2 and 4, an embodiment of the present utility model is provided: the utility model provides an anti-electromagnetic interference is with flat coil filter inductance of common mode differential mode, including storage tank 11, notch 18 and baffle 32, the storage tank 11 is all installed to the surface that metal shield plate 1 and metal shield plate two 10 are close to each other, and two sets of storage tank 11 are located two sets of thing pole 2 and two sets of middles of putting thing cover 4 respectively, one side outer wall laminating of two sets of storage tank 11 is in the same place, the top of storage tank 11 runs through and is provided with notch 18, sealed lid 13 is installed to the inside gomphosis of notch 18, the top of storage tank 11 is provided with baffle groove 12, baffle 14 is installed to baffle 12's inside gomphosis, and the one end of silica gel area 14 is connected with sealed lid 13's surface, the front of storage tank 11 is embedded to be installed radiator fan 17, the bottom of two sets of storage tank 11 is connected with metal shield plate 1 and metal shield plate two's 10 diapire respectively, one side inner wall of baffle 12 is linked up with the internal surface of notch 18, sealed lid 13 and silica gel belt 14 are located same horizontal plane with 11, one side inner wall mounting baffle 32 of 11, and baffle 32 are "L" font, the top of baffle 32 is connected with the top of storage tank 11 and the baffle 11 is the top wall 16, the baffle 16 is arranged at the top of baffle 16 is arranged, the baffle 16 is arranged at the top of baffle 16, the baffle is arranged at the top of baffle 15, the baffle is arranged at the top of baffle 16 is arranged at the baffle 16.
Further, dial-up arm-tie 15 to can pull up the silica gel tape 14 from keeping off inslot 12, then just can pull out sealed lid 13 from notch 18, just can put the paraffin piece in to storage tank 11 through notch 18 afterwards, thereby conveniently in the in-process that uses the filter inductance, can absorb the heat that the filter inductance during operation produced through the melting of paraffin, and start radiator fan 17, make radiator fan 17 can pass through louvre 16 with the heat on the copper sheet two 26 and discharge, and then can reduce the influence of heat to filter inductance life to a certain extent.
Referring to fig. 1, 3 and 6, an embodiment of the present utility model is provided: the utility model provides an anti-electromagnetic interference is with common mode differential mode integral type flat coil filter inductance, includes inserted bar three 19 and connecting hole 27, and metal shield plate one 1 and metal shield plate two 10's top all is provided with connecting hole 27 that arranges back and forth, and four sets of connecting hole 27's inside all gomphosis installs inserted bar three 19, and connecting rod 20 is all installed on four sets of inserted bar three 19's top, two sets of front and back; the connecting plate 21 is all installed at the top of connecting rod 20, two sets of connecting plates 21 are cup jointed and are installed copper sheet one 22 each other, the surface that puts thing pole 2 and put thing cover 4 all cup joints and install evenly arranged copper sheet two 26, the wiring board 23 is all installed to one side outer wall of two sets of copper sheets one 22 in the outside and copper sheet two 26, the go-between 24 is installed to the inner surface nest of wiring board 23, the surface mounting that upper and lower two sets of go-between 24 are close to each other has copper line 25, copper sheet two 26 are located the inboard of two sets of baffles 7, storage tank 11 is located the centre of copper sheet two 26, connecting plate 21 is located the top of metal shielding plate one 1 and metal shielding plate two 10, top wiring board 23 is located the below of connecting plate 21.
Further, the common mode interference and the differential mode interference in the circuit cannot be well solved by using a single filter inductor in the circuit, a plurality of filter inductors are usually required to be welded in the circuit board, the practicability is poor, the first copper sheet 22 is sleeved on the two groups of connecting plates 21, the filter inductors are combined by embedding the two groups of connecting plates 21, then the third inserting rod 19 is inserted into the connecting holes 27, one group of filter inductors can be parallelly arranged above the other group of filter inductors by embedding the third inserting rod 19 and the connecting holes 27, then the copper wires 25 are used for connecting the connecting rings 24 on the first copper sheet 22 and the second copper sheet 26 together according to requirements, and the anti-interference capability of the filter inductors can be improved to a certain extent by parallelly connecting a plurality of groups of filter inductors.
Further, the working steps of the filter inductor are as follows:
s1, before the filter inductor is used, firstly, sleeving a second copper sheet 26 on the outer surfaces of a storage rod 2 and a storage sleeve 4, and then pushing a first metal shielding plate 1 so as to drive a first inserting rod 3 to be inserted into the storage sleeve 4;
s2, connecting the second copper sheet 26 with the wiring terminal 8, and then completing the assembly of the common-mode differential-mode integrated flat coil filter inductor, wherein in the subsequent use process, the pins 9 are only required to be inserted into the circuit board, so that convenience can be provided for subsequent overhaul work to a certain extent;
s3, when the filter inductor is used, the third inserting rod 19 can be inserted into the connecting hole 27 until the bottom end of the connecting rod 20 is attached to the tops of the first metal shielding plate 1 and the second metal shielding plate 10;
s4, when the filter inductor is used, heat generated during operation of the filter inductor can be absorbed through melting of paraffin in the storage box 11, and the cooling fan 17 can be started, so that heat around the copper sheets II 26 can be extracted through the cooling holes 16, and the service life of the filter inductor can be prolonged to a certain extent.
In step S1, the method further includes the steps of:
s11, then pressing down the stop lever 30, inserting the second insert rod 6 into the jack 5, and along with the movement of the second insert rod 6, the stop lever 30 is sprung up under the action of the spring 29 and is inserted into the limiting hole 31, and then the baffle 7 can be fixed on the front and back of the first metal shielding plate 1 and the second metal shielding plate 10, so that a certain protection effect is achieved;
s12, paraffin is placed into the storage box 11 through the notch 18, the sealing cover 13 is plugged into the notch 18 until the silicon tape 14 and the sealing cover 13 can be respectively embedded into the baffle groove 12 and the notch 18, and then the paraffin can be placed into a space formed by the storage box 11 and the baffle plate 32;
in step S3, the method further includes the steps of:
and S31, the connection rings 24 on the wiring boards 23 of the first copper sheet 22 and the second copper sheet 26 can be connected together through the copper wires 25, so that the anti-interference capability of the circuit can be improved to a certain extent through parallel connection of a plurality of groups of filter inductors.
Working principle: before the filter inductor is used, the copper sheet II 26 is sleeved on the outer surfaces of the object placing rod 2 and the object placing sleeve 4, then the metal shielding plate I1 is pushed, the inserting rod I3 is driven to be inserted into the object placing sleeve 4, the stop lever 30 is pressed downwards, the inserting rod II 6 is inserted into the jack 5, then the baffle 7 can be fixed on the front surface and the back surface of the metal shielding plate I1 and the metal shielding plate II 10 through the embedding of the stop lever 30 and the limiting hole 31, and the filter inductor can be protected through the metal shielding plate I1, the metal shielding plate II 10 and the baffle 7;
then paraffin is put into the storage box 11 through the notch 18, the sealing cover 13 is plugged into the notch 18, then the copper sheet II 26 and the wiring terminal 8 are connected together, then the inserting rod III 19 is inserted into the connecting hole 27 until the bottom end of the connecting rod 20 can be attached to the tops of the metal shielding plate I1 and the metal shielding plate II 10, then the connecting plate 21 and the copper sheet I22 can be installed above the filter inductor through the insertion rod III 19 and the connecting hole 27, then the copper sheet I22 and the connecting ring 24 on the copper sheet II 26 are connected together through the copper wire 25, so that the anti-interference capability of a circuit can be improved to a certain extent through connecting a plurality of groups of filter inductors in parallel, and finally the pin 9 is only required to be inserted into the circuit board.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an anti-electromagnetic interference is with common mode differential mode integral type flat coil filter inductance, includes metal shield board one (1), its characterized in that: the metal shielding plate I (1) is L-shaped, a storage rod (2) which is arranged front and back is arranged on the outer wall of one side of the metal shielding plate I (1), a first inserting rod (3) is arranged at one end of each of the two groups of storage rods (2), a storage sleeve (4) is sleeved on the outer surface of each of the two groups of first inserting rods (3), and one side outer wall of the storage sleeve (4) is attached to one end of the storage rod (2);
the novel electric power socket is characterized in that a second metal shielding plate (10) is arranged on the outer wall of the other side of the object placing sleeve (4), jacks (5) are formed in the front face and the back face of the first metal shielding plate (1) and the front face and the back face of the second metal shielding plate (10), inserting rods (6) are embedded in the jacks (5) of four groups, baffles (7) are arranged on the front face of the inserting rods (6) of two groups and the back face of the inserting rods (6) of two groups at the back, and wiring terminals (8) which are symmetrically arranged in the front-back direction are arranged on the bottom walls of the first metal shielding plate (1) and the second metal shielding plate (10);
the bottom ends of the wiring terminals (8) penetrate through the bottom walls of the first metal shielding plate (1) and the second metal shielding plate (10) to be provided with pins (9);
the novel solar energy storage box is characterized in that storage boxes (11) are arranged on the surfaces, close to each other, of the first metal shielding plate (1) and the second metal shielding plate (10), the two storage boxes (11) are respectively positioned between the two storage rods (2) and the two storage sleeves (4), one side outer wall of each storage box (11) is attached together, a notch (18) is formed in the top of each storage box (11) in a penetrating mode, a sealing cover (13) is arranged in the top of each notch (18) in a embedded mode, a blocking groove (12) is formed in the top of each storage box (11), a silicon rubber belt (14) is arranged in the inner portion of each blocking groove (12) in a embedded mode, one end of each silicon rubber belt (14) is connected with the outer surface of each sealing cover (13), and a cooling fan (17) is arranged in the front of each storage box (11) in an embedded mode.
The partition board (32) is arranged on the inner wall of one side of the storage box (11), the partition board (32) is L-shaped, the top of the partition board (32) is connected with the top wall of the storage box (11), paraffin is filled in a space formed by the storage box (11) and the partition board (32), heat generated during the operation of the filter inductor is absorbed through melting of the paraffin, and the cooling fan (17) is located above the partition board (32).
2. The common-mode differential mode integrated pancake coil filter inductor for electromagnetic interference resistance according to claim 1, wherein: the tops of the first metal shielding plate (1) and the second metal shielding plate (10) are respectively provided with a connecting hole (27) which is arranged front and back, inserting rods III (19) are respectively embedded and installed in the four groups of connecting holes (27), connecting rods (20) are respectively installed at the top ends of the four groups of inserting rods III (19), and the front and back groups of connecting rods are respectively provided with two groups of connecting rods; connecting plate (21) are all installed at the top of connecting rod (20), and copper sheet one (22) is installed in the surface socket joint that two sets of connecting plates (21) are close to each other, and the surface that puts thing pole (2) and put thing cover (4) all cup joints and installs evenly arranged copper sheet two (26), and wiring board (23) are all installed to one side outer wall of two copper sheet one (22) in the outside and copper sheet two (26), and go up the surface mounting copper line (25) that two sets of connecting rings (24) are close to each other in the inner surface nested of wiring board (23) install go-between (24).
3. The common-mode differential mode integrated pancake coil filter inductor for electromagnetic interference resistance according to claim 1, wherein: the top of metal shield board one (1) and metal shield board two (10) all runs through and is provided with spacing hole (31), and the surface of inserted bar two (6) is provided with puts thing hole (28), and spring (29) are installed to the diapire of putting thing hole (28), and pin (30) are installed on the top of spring (29), and pin (30) are located the inboard of putting thing hole (28), and pin (30) are located the inboard of spacing hole (31).
4. A common-mode differential mode integrated pancake coil filter inductor for electromagnetic interference resistance according to any one of claims 1-2, characterized in that: the second metal shielding plate (10) and the first metal shielding plate (1) are combined to form a concave structure, and the surfaces of the two groups of baffles (7) close to each other are respectively attached to the front surface and the back surface of the first metal shielding plate (1) and the second metal shielding plate (10);
the bottoms of the two groups of storage boxes (11) are respectively connected with the bottom walls of the first metal shielding plate (1) and the second metal shielding plate (10), the inner wall of one side of the baffle groove (12) is communicated with the inner surface of the notch (18), and the sealing cover (13) and the silica gel belt (14) are positioned on the same horizontal plane with the storage boxes (11);
the copper sheet II (26) is located the inboard of two sets of baffles (7), and storage tank (11) are located the centre of copper sheet II (26), and connecting plate (21) are located the top of metal shield plate I (1) and metal shield plate II (10), and upper wiring board (23) are located the below of connecting plate (21).
5. The common-mode differential mode integrated pancake coil filter inductor for electromagnetic interference resistance according to claim 1, wherein: the tops of the two groups of storage boxes (11) are respectively provided with uniformly arranged radiating holes (16) in a penetrating mode, and the radiating holes (16) are located on one side of the baffle groove (12).
6. The common-mode differential mode integrated pancake coil filter inductor for electromagnetic interference resistance according to claim 1, wherein: the top of the silica gel belt (14) is provided with a pulling plate (15), and the pulling plate (15) is in a strip shape.
7. The method for using the common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference according to any one of claims 1 to 5, wherein the working steps of the filter inductor are as follows:
s1, before the filter inductor is used, a second copper sheet (26) is sleeved on the outer surfaces of the object placing rod (2) and the object placing sleeve (4), and then the first metal shielding plate (1) is pushed, so that the first inserting rod (3) is driven to be inserted into the object placing sleeve (4);
s2, connecting the copper sheet II (26) with the wiring terminal (8), and then completing the assembly of the common-mode differential mode integrated flat coil filter inductor, wherein in the subsequent use process, only the pin (9) is required to be inserted into the circuit board, so that convenience can be provided for subsequent overhaul work to a certain extent;
s3, when the filter inductor is used, the third inserting rod (19) can be inserted into the connecting hole (27) until the bottom end of the connecting rod (20) can be attached to the tops of the first metal shielding plate (1) and the second metal shielding plate (10);
s4, when the filter inductor is used, heat generated during operation of the filter inductor can be absorbed through melting of paraffin in the storage box (11), and the cooling fan (17) can be started, so that heat around the copper sheet II (26) can be extracted through the cooling hole (16), and the service life of the filter inductor can be prolonged to a certain extent.
8. The method of using a common-mode differential mode integrated flat coil filter inductor for electromagnetic interference resistance according to claim 7, wherein in said step S1, further comprising the steps of:
s11, then pressing down the stop lever (30), inserting the second inserting rod (6) into the jack (5), and along with the movement of the second inserting rod (6), the stop lever (30) can be sprung up under the action of the spring (29) and inserted into the limiting hole (31), and then the baffle (7) can be fixed on the front and the back of the first metal shielding plate (1) and the second metal shielding plate (10), so that a certain protection effect is achieved;
s12, paraffin is put into the storage box (11) through the notch (18), the sealing cover (13) is plugged into the notch (18) until the silica gel belt (14) and the sealing cover (13) can be respectively embedded with the baffle groove (12) and the notch (18), and then the paraffin can be placed in a space formed by the storage box (11) and the baffle plate (32);
in the step S3, the method further includes the following steps:
s31, the connection rings (24) on the first copper sheet (22) and the second copper sheet (26) wiring board (23) can be connected together through the copper wires (25), so that the anti-interference capability of the circuit can be improved to a certain extent through parallel connection of a plurality of groups of filter inductors.
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| CN202310000149.9A CN115938729B (en) | 2023-01-02 | 2023-01-02 | Common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference |
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| CN202310000149.9A CN115938729B (en) | 2023-01-02 | 2023-01-02 | Common-mode differential mode integrated flat coil filter inductor for resisting electromagnetic interference |
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| CN115938729B true CN115938729B (en) | 2023-10-13 |
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Citations (8)
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| JPH08264338A (en) * | 1995-03-28 | 1996-10-11 | Matsushita Electric Works Ltd | Electromagnetic device |
| JPH11297540A (en) * | 1998-04-14 | 1999-10-29 | Tdk Corp | Box-type noise filter |
| JP2003188033A (en) * | 2001-12-18 | 2003-07-04 | Soshin Electric Co Ltd | Large-current common mode inductor and line filter |
| KR100717727B1 (en) * | 2006-02-06 | 2007-05-11 | 유양산전 주식회사 | A bobbin for transformer |
| CN205793939U (en) * | 2016-05-24 | 2016-12-07 | 维沃移动通信有限公司 | A kind of radome and mobile terminal |
| CN107317562A (en) * | 2016-04-26 | 2017-11-03 | 上海联影医疗科技有限公司 | A kind of trapper for magnetic resonance imaging |
| JP2018057211A (en) * | 2016-09-30 | 2018-04-05 | 北川工業株式会社 | Output noise reduction device |
| CN217306290U (en) * | 2022-05-11 | 2022-08-26 | 深圳市驰兴科技有限公司 | Fast-assembled combined inductor |
-
2023
- 2023-01-02 CN CN202310000149.9A patent/CN115938729B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08264338A (en) * | 1995-03-28 | 1996-10-11 | Matsushita Electric Works Ltd | Electromagnetic device |
| JPH11297540A (en) * | 1998-04-14 | 1999-10-29 | Tdk Corp | Box-type noise filter |
| JP2003188033A (en) * | 2001-12-18 | 2003-07-04 | Soshin Electric Co Ltd | Large-current common mode inductor and line filter |
| KR100717727B1 (en) * | 2006-02-06 | 2007-05-11 | 유양산전 주식회사 | A bobbin for transformer |
| CN107317562A (en) * | 2016-04-26 | 2017-11-03 | 上海联影医疗科技有限公司 | A kind of trapper for magnetic resonance imaging |
| CN205793939U (en) * | 2016-05-24 | 2016-12-07 | 维沃移动通信有限公司 | A kind of radome and mobile terminal |
| JP2018057211A (en) * | 2016-09-30 | 2018-04-05 | 北川工業株式会社 | Output noise reduction device |
| CN217306290U (en) * | 2022-05-11 | 2022-08-26 | 深圳市驰兴科技有限公司 | Fast-assembled combined inductor |
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| Publication number | Publication date |
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| CN115938729A (en) | 2023-04-07 |
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