CN108023559A - A kind of wave filter - Google Patents
A kind of wave filter Download PDFInfo
- Publication number
- CN108023559A CN108023559A CN201810026707.8A CN201810026707A CN108023559A CN 108023559 A CN108023559 A CN 108023559A CN 201810026707 A CN201810026707 A CN 201810026707A CN 108023559 A CN108023559 A CN 108023559A
- Authority
- CN
- China
- Prior art keywords
- core
- wave filter
- magnet ring
- core cable
- aviation connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/0035—Wound magnetic core
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0021—Constructional details
- H03H2001/005—Wound, ring or feed-through type inductor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H2001/0092—Inductor filters, i.e. inductors whose parasitic capacitance is of relevance to consider it as filter
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a kind of wave filter, including：The accommodating space of aviation connector and cylindrical housings, aviation connector and cylindrical housings shaping filter；The multi-core cable being connected in accommodating space and with aviation connector is arranged at, multi-core cable includes multigroup cored wire being arranged in pairs, and multi-core cable includes at least the two core power cables and two core signal cables being arranged in pairs；At least one magnet ring being arranged in accommodating space, the number of turn is preset in multi-core cable coiling through the toroidal cavity among magnet ring and on magnet ring, the cored wire line footpath being arranged in pairs is identical with number of turns, and be symmetrically wound on magnet ring, the radial distance close to core section to the cylindrical housings of cylindrical housings side is identical.Multi-core cable includes at least the two core power cables and two core signal cables being arranged in pairs, the common mode inductance coil that the number of turn forms multigroup ring altogether is preset in two core power cables and two core signal cable coilings on magnet ring, realize that power filter and signal filtering are carried out at the same time, good wave filtering effect.
Description
Technical field
The present embodiments relate to electromagnetic interference and technical field of electromagnetic compatibility, more particularly to a kind of wave filter.
Background technology
Common intrinsic safety type sensor and substation are metal shell in mine supervision equipment terminal device, between be provided with
Cable.Since length of cable reaches several kilometers, and it is not shielded cable, so being vulnerable to electromagnetic interference, it is normal influences equipment
Work, therefore, it is necessary to design installation wave filter for equipment.
In the prior art, the conventional design method for installing wave filter additional is to install wave filter electricity additional on equipment internal circuit board
Road, but actual interference reaches on-board filter and has just come into before inside equipment, when level of interference or higher frequency, just
Space radiation can be formed by the short-term between aviation connector and wiring board wire connection terminal to disturb, be so difficult to effectively control again
Interference have impact on wiring board.This also becomes a problem in the practical application for improving equipment antijamming capability.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of wave filter, to solve in the prior art by electric inside equipment
The technical problem of electromagnetic interference can not be solved by installing wave filter on the plate of road additional.
An embodiment of the present invention provides a kind of wave filter, including：
Aviation connector and the cylindrical housings being connected with the aviation connector, the aviation connector and described
Cylindrical housings form the accommodating space of the wave filter；
Multi-core cable, the multi-core cable are arranged in the accommodating space and are connected with the aviation connector；Wherein,
The multi-core cable includes multigroup cored wire being arranged in pairs, and the multi-core cable includes at least two core power cables being arranged in pairs
With two core signal cables；
At least one magnet ring, at least one magnet ring are arranged in the accommodating space, and the multi-core cable passes through institute
State the toroidal cavity among magnet ring and on the magnet ring coiling preset the number of turn, form the common mode inductance coil of multigroup ring altogether；Its
In, the cored wire line footpath that is arranged in pairs is identical with number of turns, and is symmetrically wound on the magnet ring, the common mode inductance line
The radial distance of core section to the cylindrical housings in circle close to the cylindrical housings side is identical.
Optionally, the wave filter includes multiple magnet rings, and multiple magnet rings are put down along the extending direction of the multi-core cable
Row is set；
The multi-core cable is each passed through the toroidal cavity among each magnet ring, and on each magnet ring respectively
The number of turn is preset in coiling.
Optionally, the magnet ring is arranged in the accommodating space close to the side of the aviation connector.
Optionally, the wave filter further includes：Multiple Y capacitances, multiple Y capacitances are arranged at the aviation connector
On, one end and the metal shell at the aviation connector marginal position of each Y capacitance weld, the other end and the boat
The binding post welding of empty connector.
Optionally, the quantity of the Y capacitance is identical with the cored wire quantity of the multi-core cable.
Optionally, the Y capacitance includes multigroup Y capacitance being arranged in pairs, and two Y capacitances being arranged in pairs described in every group are held
It is worth identical, and two Y capacitances being arranged in pairs described in every group are corresponding with the cored wire being arranged in pairs in the multi-core cable.
Optionally, the wave filter further includes：Multiple magnetic beads, multiple magnetic beads are arranged at connecing for the aviation connector
Between terminal and the multi-core cable, one end of each magnetic bead is connected with the binding post of the aviation connector, the other end
It is connected with the multi-core cable；Wherein, the quantity of the magnetic bead is identical with the cored wire quantity of the multi-core cable.
Optionally, the aviation connector be formed as cylinder；
The outer surface of the cylinder aviation connector is provided with the first screw thread, and the inner surface of the cylindrical housings is set
There is the second screw thread, the aviation connector is threadedly coupled with the cylindrical housings by first screw thread and described second.
Optionally, the wave filter further includes：Non-conductive adhesive, the non-conductive adhesive are filled in the accommodating space.
Optionally, the non-conductive adhesive includes epoxy pouring sealant.
Wave filter provided in an embodiment of the present invention, by setting multi-core cable including multigroup cored wire being arranged in pairs and at least
One magnet ring, and the number of turn is preset in multi-core cable coiling through the toroidal cavity among magnet ring and on magnet ring, ensures split conductor
The cored wire being arranged in pairs in cable forms the common mode inductance coil of multigroup ring altogether, when there is common mode current to flow through, due in magnet ring
Magnetic flux is overlapped mutually, so as to have sizable inductance value, inhibitory action is played to common mode current, with this attenuation common-mode electric current,
Filter out the common mode interference of corresponding frequency band, the filtering performance of boostfiltering device；Meanwhile multi-core cable includes at least two be arranged in pairs
Core power cable and two core signal cables, ensure that wave filter can be carried out at the same time power filter and signal filtering, good wave filtering effect；
Also, since multi-core cable coiling magnet ring forms multigroup inductance coil, and close to cylindrical housings side core section to justifying
The radial distance of cylindrical shell is identical, ensures that every distribution capacity that formed between circle coiling and cylindrical housings is identical, passes through distribution
Capacitance is filtered, the filter effect of further boostfiltering device.
Brief description of the drawings
In order to clearly illustrate the technical solution of exemplary embodiment of the present, below to required in description embodiment
The attached drawing to be used does a simple introduction.Obviously, the attached drawing introduced is the part of the embodiment of the invention to be described
Attached drawing, rather than whole attached drawings, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure diagram of wave filter provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of another wave filter provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below with reference to attached in the embodiment of the present invention
Figure, by embodiment, is fully described by technical scheme.Obviously, described embodiment is of the invention
Part of the embodiment, instead of all the embodiments, based on the embodiment of the present invention, those of ordinary skill in the art are not doing
The every other embodiment obtained on the premise of going out creative work, each falls within protection scope of the present invention.
The embodiment of the present invention provides a kind of wave filter, is specifically as follows air plug wave filter, including aviation connector and with
The accommodating space of the cylindrical housings of aviation connector connection, aviation connector and cylindrical housings shaping filter；Multicore
Cable, multi-core cable are arranged in accommodating space and are connected with aviation connector；Wherein, multi-core cable includes multigroup be arranged in pairs
Cored wire, multi-core cable includes at least the two core power cables and two core signal cables that are arranged in pairs；At least one magnet ring, at least
One magnet ring is arranged in accommodating space, and circle is preset in multi-core cable coiling through the toroidal cavity among magnet ring and on magnet ring
Number, formed it is multigroup altogether ring common mode inductance coil, wherein, the cored wire line footpath being arranged in pairs is identical with number of turns, and symmetrically around
System is on magnet ring, radial distance phase of the core section of close cylindrical housings side to cylindrical housings in common mode inductance coil
Together.The technical solution of the embodiment of the present invention, multi-core cable includes multigroup cored wire being arranged in pairs, by setting multi-core cable to pass through
Toroidal cavity among magnet ring and on magnet ring coiling preset the number of turn, the cored wire for ensureing to be arranged in pairs in multi-core cable is on magnet ring
Common mode inductance coil is formed, when there is common mode current to flow through, since the magnetic flux in magnet ring is overlapped mutually, so that with sizable
Inductance value, plays common mode current inhibitory action, that is, reaches the common mode interference for filtering out corresponding band, the filtering of boostfiltering device
Energy；Meanwhile multi-core cable includes at least the two core power cables and two core signal cables being arranged in pairs, ensure that wave filter can be same
Shi Jinhang power filters and signal filtering, good wave filtering effect；Also, the multigroup common mode electricity formed due to multi-core cable coiling magnet ring
Feel coil, the radial distance close to core section to the cylindrical housings of cylindrical housings side is identical, ensure per circle coiling and
The distribution capacity formed between cylindrical housings is identical, is filtered by distribution capacity, the filtering of further boostfiltering device
Effect.
Above is the core concept of the present invention, below in conjunction with the attached drawing in the embodiment of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, all other embodiments obtained, belong to the scope of protection of the invention.
Fig. 1 is a kind of structure diagram of wave filter provided in an embodiment of the present invention, as shown in Figure 1, the embodiment of the present invention
The wave filter 1 of offer can include：
Aviation connector 10 and the cylindrical housings 20 being connected with aviation connector 10, aviation connector 10 and cylinder
The accommodating space of 20 shaping filter 1 of shape housing；
Multi-core cable 30, multi-core cable 30 are arranged in accommodating space and are connected with aviation connector 10；Wherein, split conductor
Cable 30 includes multigroup cored wire being arranged in pairs, and multi-core cable 30 includes at least the two core power cables and two core signals being arranged in pairs
Cable；
At least one magnet ring 40, at least one magnet ring 40 are arranged in accommodating space, and multi-core cable 30 passes through magnet ring 40
Toroidal cavity and on magnet ring coiling preset the number of turn, form the common mode inductance coil of multigroup ring altogether；Wherein, the cored wire being arranged in pairs
Line footpath is identical with number of turns, and is symmetrically wound on magnet ring 40, close to 20 side of cylindrical housings in common mode inductance coil
The radial distance of core section to cylindrical housings 20 is identical.
Optionally, the wave filter described in the embodiment of the present invention can be air plug wave filter, and aviation connector 10 can be mark
Quasi-cylindrical aviation connector, cylindrical housings 20 breach the square structure of traditional filters housing, ensure cylindrical housings
20 is good with 10 matching of aviation connector.Also, the outer diameter of cylindrical aviation connector 10 can be with cylindrical housings 20
Internal diameter size matching, in the case where not changing original 10 structure size of standard aviation connector, ensure cylindrical housings 20
With 10 perfect adaptation of aviation connector, ensure that cylindrical housings 20 and 10 assembly method of aviation connector are simple, while can be with
Ensure that the wave filter 1 of formation is small.Also, since aviation connector 10 can be standard aviation connector, the present invention
The wave filter 1 that embodiment provides directly can be connected use with the other equipment in existing process, without adjusting wave filter 1 again
Or the size of other settings, wave filter 1 have good universality.Optionally, aviation connector 10 and cylindrical housings 20
All can be metal material, the embodiment of the present invention to aviation connector 10 and the specifically used metal material of cylindrical housings 20 not
It is defined.It should be noted that in order to illustrate the internal structure of wave filter 1, the wave filter shown in Fig. 1 is with exploded perspective view
Mode illustrates.
Optionally, the size of cylindrical housings 20 can be corresponding with the cored wire number included in multi-core cable 30, works as multicore
When the cored wire number included in cable 30 is less, such as multi-core cable 30 is quad cable, only including two core power cables and two
During core signal cable, the housing inner diameter size of cylindrical housings 20 can be smaller, ensures that the wave filter 1 to be formed is small, uses
It is convenient；When the cored wire number included in multi-core cable 30 is more, the housing inner diameter size of cylindrical housings 20 can be larger, protects
The wave filter 1 that card is formed can be filtered multi-signal, and filter function is powerful.
Exemplary, Fig. 1 includes a magnet ring 40 with wave filter 1, and multi-core cable 30 is to be said exemplified by quad cable
It is bright, as shown in Figure 1, in the accommodating space that multi-core cable 30 is arranged at aviation connector 10 and cylindrical housings 20 are formed, multicore
Cable 30 can include multigroup cored wire being arranged in pairs, Fig. 1 with multi-core cable 30 include the two core power cables that are arranged in pairs and
Illustrated exemplified by two core signal cables.The multi-core cable 30 passes through the ring among the magnet ring 40 being similarly provided in accommodating space
Shape cavity, and the number of turn is preset in coiling on magnet ring 40, can so ensure that the cored wire being arranged in pairs in multi-core cable 30 is formed altogether
Mould inductance coil, the two coils are wound on magnet ring 40, and number of turns is identical with line footpath, and winding method is symmetrical, in this way,
When the normal current in circuit flows through common mode inductance coil, the magnetic flux produced in common mode inductance coil is cancelled out each other, at this time just
Regular signal is barely affected；, can be altogether due to the same tropism of common mode current when there is common mode current to flow through common mode inductance coil
Magnetic field in the same direction is produced in mould inductance coil and increases the induction reactance of coil, coil is shown as high impedance, is produced stronger damping
Effect, with this attenuation common-mode electric current, achievees the purpose that filtering.Optionally, multigroup in same multi-core cable 30 is arranged in pairs
The coiling number of turn of the cored wire on magnet ring 40 can be the same or different, the interference band phase that the coiling number of turn and needs filter out
Close, here to the specific coiling number of turn without limiting.
Optionally, since multi-core cable 30 includes at least the two core power cables and two core signal cables that are arranged in pairs, lead to
Cross two core power cables and two core signal cables are each passed through the toroidal cavity among magnet ring 40 and coiling is distinguished on magnet ring 40
The default number of turn, can form power supply common mode inductance coil and signal common mode inductance coil at the same time, realize power filter and signal filter
Ripple is carried out at the same time, and realizes and the integral filter of power supply and signal while filtering is designed, good wave filtering effect.
Optionally, with continued reference to Fig. 1, the cable in multi-core cable 30 is through the toroidal cavity among magnet ring 40 and in magnet ring
The number of turn is preset in coiling on 40, forms multigroup inductance coil, core section of each inductance coil close to 20 side of cylindrical housings
Radial distance to cylindrical housings 20 is identical, can so ensure to be formed between each inductance coil and cylindrical housings 20 and divide
Cloth capacitance, and distribution capacity is equal, can be further filtered by distribution capacity, the filter effect of boostfiltering device 1.Tool
Body, along the extending direction of multi-core cable 30, each it is wound in extension of the inductance coil on magnet ring 40 in 40 outer surface of magnet ring
Length can be L, and the diameter length of each inductance coil can be D, and each inductance coil is close to 20 side of cylindrical housings
The radial distance of core section to cylindrical housings 20 can be d, according to capacitance calculation formula it is recognised that each inductance coil
The size of distribution capacity C between cylindrical housings 20 is：C=ε * L*D/d, wherein, ε is Jie of accommodating space filled media
Electric constant.By adjusting inductance coil in the development length L of 40 outer surface of magnet ring, the diameter D of inductance coil, each inductance coil
The medium filled close to the radial distance, d and accommodating space of core section to the cylindrical housings 20 of 20 side of cylindrical housings
Material, can adjust the size of distribution capacity C, further adjust the filter effect of wave filter 1.It should be noted that inductor wire
Enclose the development length L in 40 outer surface of magnet ring to be adjusted along 30 extending direction of multi-core cable by magnet ring 40, and also may be used
Adjusted by number of turns.
To sum up, wave filter provided in an embodiment of the present invention, by setting multi-core cable to include multigroup cored wire being arranged in pairs
With at least one magnet ring, and multi-core cable through the toroidal cavity among magnet ring and on magnet ring around the default number of turn is set up, protect
The cored wire being arranged in pairs in card multi-core cable forms common mode inductance coil in magnet ring, and common mode inductance coil is flowed through when there is common mode current
When, magnetic field in the same direction can be produced in common mode inductance coil and increases induction reactance, appeared as high impedance, produce stronger damping
Effect, with this attenuation common-mode electric current, reaches the interference filtered out with common mode current corresponding frequency band, the filtering of boostfiltering device
Energy.Meanwhile multi-core cable includes at least the two core power cables and two core signal cables being arranged in pairs, ensure that wave filter can be same
Shi Jinhang power filters and signal filtering, good wave filtering effect；Also, the multigroup inductor wire formed due to multi-core cable coiling magnet ring
The radial distance of core section to cylindrical housings in circle close to cylindrical housings side is identical, ensures per circle coiling and cylinder
It is identical that distribution capacity is formed between shape housing, is filtered by distribution capacity, the filter effect of further boostfiltering device.
Optionally, with continued reference to Fig. 1, in wave filter provided in an embodiment of the present invention, magnet ring 40 is disposed in proximity to aviation and connects
The side of plug-in unit 10, the cored wire that can so ensure to be arranged in pairs in multi-core cable 30 can be in the inlet of whole wave filter 1
Formed common mode inductance coil, the inlet of wave filter 1 can attenuation common-mode electric current, eliminate common mode current produce interference, prevent
The interference that only common mode current produces is filtered the inside of device 1, avoids interference and further forms radiation into the inside of wave filter 1
Interference, improves the interference free performance of equipment.
Optionally, with continued reference to Fig. 1, wave filter 1 provided in an embodiment of the present invention can also include multiple Y capacitances 50, more
A Y capacitance 50 is arranged on aviation connector 10, one end and the metal at 10 marginal position of aviation connector of each Y capacitance 50
Shell welds, and the binding post of the other end and aviation connector 10 welds, also, the quantity of Y capacitance 50 and the core of multi-core cable 30
Line number amount can be identical,
Exemplary, Fig. 1 is 4 with the cored wire quantity of the quantity of Y capacitance 50 and multi-core cable 30 and illustrates.It is optional
, Y capacitance 50 itself can with suppression common mode electric current produce interference, can also with magnet ring 40 can together with formed LC filtering, into
The interference that one step suppression common mode electric current produces, the filter effect of boostfiltering device 1.Also, Y capacitance 50 can be according to power cable
The different filter effects for carrying out parameter adjustment, ensureing wave filter 1 with signal cable.Meanwhile Y capacitance 50 is as safety capacitance
One kind, even if will not be short-circuit after failure, not entail dangers to personal safety.
Optionally, Y capacitance 50 can possess higher pressure voltage, for example, equipment where wave filter need to meet industrial frequency withstand voltage,
Then the pressure voltage of Y capacitance 50 needs to be more than industrial frequency withstand voltage numerical value, such as 500V；Alternatively, the pressure voltage of Y capacitance 50 also needs to be more than
The surge voltage peak value of equipment where it, for example, under conditions of 1 place equipment of wave filter need to meet 3 grades of surge immunity, Y electricity
The pressure voltage of appearance 50 also needs to be more than 2000V.By setting Y capacitance 50 to ensure that wave filter 1 possesses higher pressure voltage.
It is understood that filtered when being connected using wave filter 1 as shown in Figure 1 with other external equipments in use, working as
Device 1 installed on external equipment it is complete after, the cage connection of the metal shell of aviation connector 1 directly with external equipment, if outside
It is equally metal shell to connect equipment, then can be led to the interference on multi-core cable 30 on external equipment shell by Y capacitance 50, from
And ensure that internal circuit board is interference-free.
Optionally, wave filter 1 provided in an embodiment of the present invention can also include multiple magnetic bead (not shown)s, multiple magnetic
Pearl is arranged between the binding post of aviation connector 10 and multi-core cable 30, one end of each magnetic bead and connecing for aviation connector 10
Terminal connects, and the other end is connected with multi-core cable 30, and High-frequency Interference, the filtering of further boostfiltering device 1 are filtered out by magnetic bead
Performance.Optionally, the quantity of magnetic bead can be identical with the cored wire quantity of multi-core cable 30.
Optionally, the surface of cylindrical aviation connector 10 can be provided with the first screw thread (not shown), cylinder
The inner surface of shape housing 20 can be provided with the second screw thread (not shown), in this way, aviation connector 10 and cylindrical housings
20 can be threadedly coupled by the first screw thread and second, ensure that aviation connector 10 and 20 connection relation of housing are simply firm.Can
With understanding, the embodiment of the present invention only can pass through the first screw thread and the second spiral shell with aviation connector 10 and cylindrical housings 20
Illustrated exemplified by line connection, optionally, aviation connector 10 can also be connected by other means with cylindrical housings 20
Connect, such as aviation connector 10 and cylindrical housings 20 are attached by way of buckle, or connected by glue, this hair
Bright embodiment, without limiting, only need to ensure that aviation connector 10 and the size relationship of cylindrical housings 20 match to this, can be with
Connect shaping filter.
Optionally, wave filter 1 provided in an embodiment of the present invention can also include non-conductive adhesive (not shown), this is non-to lead
Electric glue is filled in accommodating space, non-conductive adhesive can be opposite to device in accommodating space has fixation, insulation, waterproof, prevents
The protective effect of oily, dust-proof, antitheft close, corrosion-resistant, ageing-resistant, cold-resistant thermal shock, while the insulation of wave filter 1 can also be increased
Pressure-resistant coefficient.Specifically, the non-conductive adhesive can include epoxy pouring sealant.It is understood that possesses the glue of non-conductive function
Body can be included in the protection domain of the embodiment of the present invention, will not enumerate here.
Fig. 2 is the structure diagram of another wave filter provided in an embodiment of the present invention, as shown in Fig. 2, the present invention is implemented
The wave filter 2 that example provides can include aviation connector 10 and the cylindrical housings 20 being connected with aviation connector 10, aviation
The accommodating space of 20 shaping filter 2 of connector 10 and cylindrical housings；
Multi-core cable 30, multi-core cable 30 are arranged in accommodating space and are connected with aviation connector 10；Wherein, split conductor
Cable 30 includes multigroup cored wire being arranged in pairs, and multi-core cable 30 includes at least the two core power cables and two core signals being arranged in pairs
Cable；
Multiple magnet rings, multiple magnet rings are arranged in parallel along the extending direction of multi-core cable 30；
Multi-core cable 30 is each passed through the toroidal cavity among each magnet ring, and circle is preset in coiling respectively on each magnet ring
Number.
Exemplary, Fig. 2 is illustrated so that wave filter 2 includes two magnet rings as an example, as shown in Fig. 2, magnet ring 41 and magnet ring
42 are arranged in parallel along the extending direction of multi-core cable 30, and multi-core cable 30 is each passed through the toroidal cavity of magnet ring 41 and magnet ring 42,
And the number of turn is preset in coiling respectively on magnet ring 41 and magnet ring 42.Multi-core cable 30 is set to be each passed through the ring of magnet ring 41 and magnet ring 42
Shape cavity, and the number of turn is preset in coiling respectively on magnet ring 41 and magnet ring 42, the cored wire being arranged in pairs in multi-core cable 30 exists respectively
Common mode inductance coil is formed on magnet ring 41 and magnet ring 42, as wave filter 1 that not only can be as shown in Figure 1, when in circuit just
When normal electric current flows through common mode inductance, produce reverse magnetic field in common mode inductance coil and cancel out each other, at this time normal signal electric current
It is barely affected；When there is common mode current flowing through coil, due to the same tropism of common mode current, can be produced in common mode inductance coil
Give birth to magnetic field in the same direction and increase the induction reactance of coil, coil is shown as high impedance, produce stronger damping, decayed altogether with this
Mould electric current, achievees the purpose that filtering；Also, work as the toroidal cavity that multi-core cable 30 is each passed through magnet ring 41 and magnet ring 42, and
The number of turn is preset in coiling respectively on magnet ring 41 and magnet ring 42, sets the number of turn of the coiling on magnet ring 41 and magnet ring 42 of multi-core cable 30 not
Together, it can also be ensured that multi-core cable 30 forms the common mode inductance coil of different parameters on magnet ring 41 and magnet ring 42, and correspondence filters out
The interference of different frequency range, ensures the interference that can resist a variety of different frequency ranges of wave filter 2, the anti-interference of boostfiltering device 2
Energy.It is understood that when wave filter includes multiple magnet rings, such as 4, multi-core cable 30 can be formed on multiple magnet rings
The common mode inductance coil of different parameters, the corresponding interference for filtering out multiple and different frequency ranges, ensure wave filter can resist it is a variety of not
With the interference of frequency range, the interference free performance of further boostfiltering device.
By test, when filter internal is using double magnet rings or more magnet rings, the Filter specification is excellent, useful signal insertion
It is lost within 2dB, 20M-800M decay reaches more than 40dB.The filtering problem of monitoring device can be preferably solved, it is unattenuated to have
With signal, raising for noise floor will not be caused, through actual third-party testing, GB/T17626.3-2006/ can be passed through
IEC61000-4-3 EMC tests and e measurement technology, 3 grades of radio frequency electromagnetic field radiation immunity experiment, GB/T17626.4-
4 grades of 2006/IEC61000-4-4 EMC tests and e measurement technology electrical fast transient (eft) immunity experiment, and performance
Criterion is A.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust, be combined with each other and substitute without departing from protection scope of the present invention.Therefore, although by above example to this
Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept
In the case of, other more equivalent embodiments can also be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
- A kind of 1. wave filter, it is characterised in that including：Aviation connector and the cylindrical housings being connected with the aviation connector, the aviation connector and the cylinder Shape housing forms the accommodating space of the wave filter；Multi-core cable, the multi-core cable are arranged in the accommodating space and are connected with the aviation connector；Wherein, it is described Multi-core cable includes multigroup cored wire being arranged in pairs, and the multi-core cable includes at least the two core power cables and two being arranged in pairs Core signal cable；At least one magnet ring, at least one magnet ring are arranged in the accommodating space, and the multi-core cable passes through the magnetic Toroidal cavity among ring and on the magnet ring coiling preset the number of turn, form the common mode inductance coil of multigroup ring altogether；Wherein, institute It is identical with number of turns to state the cored wire line footpath being arranged in pairs, and is symmetrically wound on the magnet ring, in the common mode inductance coil Radial distance close to core section to the cylindrical housings of the cylindrical housings side is identical.
- 2. wave filter according to claim 1, it is characterised in that the wave filter includes multiple magnet rings, multiple magnetic Ring is arranged in parallel along the extending direction of the multi-core cable；The multi-core cable is each passed through the toroidal cavity among each magnet ring, and coiling is distinguished on each magnet ring The default number of turn.
- 3. wave filter according to claim 1, it is characterised in that the magnet ring is arranged in the accommodating space close to institute State the side of aviation connector.
- 4. wave filter according to claim 1, it is characterised in that further include：Multiple Y capacitances, multiple Y capacitances are arranged on the aviation connector, one end of each Y capacitance and the boat Metal shell welding at empty connector marginal position, the binding post of the other end and the aviation connector weld.
- 5. wave filter according to claim 4, it is characterised in that the quantity of the Y capacitance and the core of the multi-core cable Line number amount is identical.
- 6. wave filter according to claim 5, it is characterised in that the Y capacitance includes multigroup Y capacitance being arranged in pairs, Two Y capacitance capacitances being arranged in pairs described in every group are identical, and two Y capacitances being arranged in pairs described in every group and the split conductor The cored wire being arranged in pairs in cable corresponds to.
- 7. wave filter according to claim 6, it is characterised in that further include：Multiple magnetic beads, multiple magnetic beads are arranged between binding post and the multi-core cable of the aviation connector, each One end of the magnetic bead is connected with the binding post of the aviation connector, and the other end is connected with the multi-core cable；Wherein, it is described The quantity of magnetic bead is identical with the cored wire quantity of the multi-core cable.
- 8. wave filter according to claim 1, it is characterised in that the shape of the aviation connector is cylinder；The outer surface of the cylinder aviation connector is provided with the first screw thread, and the inner surfaces of the cylindrical housings is provided with the Two screw threads, the aviation connector are threadedly coupled with the cylindrical housings by first screw thread and described second.
- 9. wave filter according to claim 1, it is characterised in that further include：Non-conductive adhesive, the non-conductive adhesive are filled in the accommodating space.
- 10. wave filter according to claim 9, it is characterised in that the non-conductive adhesive includes epoxy pouring sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026707.8A CN108023559A (en) | 2018-01-11 | 2018-01-11 | A kind of wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026707.8A CN108023559A (en) | 2018-01-11 | 2018-01-11 | A kind of wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023559A true CN108023559A (en) | 2018-05-11 |
Family
ID=62071535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810026707.8A Pending CN108023559A (en) | 2018-01-11 | 2018-01-11 | A kind of wave filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023559A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490323A (en) * | 2020-05-13 | 2020-08-04 | 合肥巨一动力***有限公司 | Integrated bus EMC filtering structure |
| CN112242607A (en) * | 2019-07-17 | 2021-01-19 | 深圳市通用测试***有限公司 | Transmission cable and electronic device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0357176A (en) * | 1989-07-26 | 1991-03-12 | Moji:Kk | Cord disloation stopping device for connector |
| TW434960B (en) * | 1999-07-14 | 2001-05-16 | Hon Hai Prec Ind Co Ltd | Cable assembly and the manufacturing method for magnetic core with filtering effect and the product thereof |
| US20050133245A1 (en) * | 2002-06-28 | 2005-06-23 | Fdk Corporation | Signal transmission cable with connector |
| JP2005198146A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Noise filter |
| JP2005198147A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Manufacturing method of noise filter |
| US20100167586A1 (en) * | 2007-03-29 | 2010-07-01 | Vaeyrynen Jukka | Telecommunications cable connector |
| CN201919169U (en) * | 2010-12-27 | 2011-08-03 | 广东新宝电器股份有限公司 | Electrothermal-electric combined utensil |
| CN102255210A (en) * | 2011-05-10 | 2011-11-23 | 蒋小平 | Vehicular USB (Universal Serial Bus) socket wiring harness assembly |
| JP2012169143A (en) * | 2011-02-14 | 2012-09-06 | Sumitomo Electric Ind Ltd | Connector device and charger |
| CN203747403U (en) * | 2013-12-26 | 2014-07-30 | 李宝华 | Two-in-one lightning electromagnetic pulse energy absorber |
| JP2014216997A (en) * | 2013-04-30 | 2014-11-17 | 双信電機株式会社 | Noise filter |
| CN204013202U (en) * | 2014-07-30 | 2014-12-10 | 成都天奥测控技术有限公司 | A kind of power supply entrance filter structure that improves Electro Magnetic Compatibility |
| CN104426007A (en) * | 2013-09-10 | 2015-03-18 | 纬创资通股份有限公司 | transmission line and filter module |
| CN107395153A (en) * | 2017-07-11 | 2017-11-24 | 西安交通大学 | A kind of self-shielding type low-pass filtering module |
| CN206673238U (en) * | 2017-01-23 | 2017-11-24 | 郑州宇通客车股份有限公司 | A kind of integrated shielding and the socket of filter function |
| CN206697658U (en) * | 2017-01-23 | 2017-12-01 | 郑州宇通客车股份有限公司 | A kind of shielded cable locking head with filter function |
| CN207625525U (en) * | 2018-01-11 | 2018-07-17 | 煤炭科学技术研究院有限公司 | A kind of filter |
-
2018
- 2018-01-11 CN CN201810026707.8A patent/CN108023559A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0357176A (en) * | 1989-07-26 | 1991-03-12 | Moji:Kk | Cord disloation stopping device for connector |
| TW434960B (en) * | 1999-07-14 | 2001-05-16 | Hon Hai Prec Ind Co Ltd | Cable assembly and the manufacturing method for magnetic core with filtering effect and the product thereof |
| US20050133245A1 (en) * | 2002-06-28 | 2005-06-23 | Fdk Corporation | Signal transmission cable with connector |
| JP2005198146A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Noise filter |
| JP2005198147A (en) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | Manufacturing method of noise filter |
| US20100167586A1 (en) * | 2007-03-29 | 2010-07-01 | Vaeyrynen Jukka | Telecommunications cable connector |
| CN201919169U (en) * | 2010-12-27 | 2011-08-03 | 广东新宝电器股份有限公司 | Electrothermal-electric combined utensil |
| JP2012169143A (en) * | 2011-02-14 | 2012-09-06 | Sumitomo Electric Ind Ltd | Connector device and charger |
| CN102255210A (en) * | 2011-05-10 | 2011-11-23 | 蒋小平 | Vehicular USB (Universal Serial Bus) socket wiring harness assembly |
| JP2014216997A (en) * | 2013-04-30 | 2014-11-17 | 双信電機株式会社 | Noise filter |
| CN104426007A (en) * | 2013-09-10 | 2015-03-18 | 纬创资通股份有限公司 | transmission line and filter module |
| CN203747403U (en) * | 2013-12-26 | 2014-07-30 | 李宝华 | Two-in-one lightning electromagnetic pulse energy absorber |
| CN204013202U (en) * | 2014-07-30 | 2014-12-10 | 成都天奥测控技术有限公司 | A kind of power supply entrance filter structure that improves Electro Magnetic Compatibility |
| CN206673238U (en) * | 2017-01-23 | 2017-11-24 | 郑州宇通客车股份有限公司 | A kind of integrated shielding and the socket of filter function |
| CN206697658U (en) * | 2017-01-23 | 2017-12-01 | 郑州宇通客车股份有限公司 | A kind of shielded cable locking head with filter function |
| CN107395153A (en) * | 2017-07-11 | 2017-11-24 | 西安交通大学 | A kind of self-shielding type low-pass filtering module |
| CN207625525U (en) * | 2018-01-11 | 2018-07-17 | 煤炭科学技术研究院有限公司 | A kind of filter |
Non-Patent Citations (3)
| Title |
|---|
| ARMSTRONG K , 李晓辉: "电缆与连接器(六)", 安全与电磁兼容 * |
| EUGEN STATNIC1 AND VALENTIN TANACH: "Investigation of the electrical discharge parameters in electrodeless inductive lamps with a re-entrant coupler and magnetic core", PLASMA SOURCES SCIENCE AND TECHNOLOGY * |
| S. NOMURA ET AL.: "Experiment of current imbalance in superconducting cable strands", 17TH IEEE/NPSS SYMPOSIUM FUSION ENGINEERING (CAT. NO.97CH36131) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242607A (en) * | 2019-07-17 | 2021-01-19 | 深圳市通用测试***有限公司 | Transmission cable and electronic device |
| CN112242607B (en) * | 2019-07-17 | 2024-04-30 | 深圳市通用测试***有限公司 | Transmission cable and electronic device |
| CN111490323A (en) * | 2020-05-13 | 2020-08-04 | 合肥巨一动力***有限公司 | Integrated bus EMC filtering structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6571675B2 (en) | cable | |
| CN102012448B (en) | Rogowski current sensor | |
| CN203406161U (en) | Hollow coil with closed magnetic circuit and resistance voltage divider combined electronic instrument transformer | |
| CN202905391U (en) | Common mode inductor | |
| CN108023559A (en) | A kind of wave filter | |
| CN207625525U (en) | A kind of filter | |
| CN205566240U (en) | Multi -level filter | |
| CN207542776U (en) | A kind of surge protector for inhibiting electrical fast transient (eft) | |
| CN104702234B (en) | A kind of EMI FILTER suitable for high pressure Hall voltage sensor | |
| CN108923342A (en) | A kind of GIS outlet casing tube with damping function | |
| CN202258647U (en) | Common mode choke | |
| CN100426667C (en) | Electromagnetic interference eliminator for power system automation apparatus | |
| CN205810511U (en) | A kind of common mode inductance | |
| CN113965068A (en) | Power supply filter circuit and method capable of inhibiting information leakage of power line | |
| CN203734632U (en) | Electromagnetic interference filter suitable for high voltage Hall voltage sensor | |
| CN216054201U (en) | Low-pass filter based on anti-interference performance | |
| US8988168B2 (en) | Ground noise inductive filter | |
| CN203406159U (en) | Hollow coil with closed magnetic circuit and coaxial capacitor combined electronic instrument transformer | |
| KR102589292B1 (en) | Electromagnetic Interference Filter | |
| CN207302830U (en) | A kind of anti-short-circuit common mode inductance | |
| CN216437057U (en) | Power supply filter circuit capable of inhibiting information leakage of power line | |
| RU221507U1 (en) | Noise suppressing power cable | |
| CN208835382U (en) | A kind of enhanced common mode inhibition filtering electrical connector | |
| CN110601516A (en) | Filtering device, power supply and filtering method thereof | |
| CN214410958U (en) | High-performance low-cost power adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |