CN116780137A - Filter capable of being connected with radio frequency interface - Google Patents
Filter capable of being connected with radio frequency interface Download PDFInfo
- Publication number
- CN116780137A CN116780137A CN202311067249.XA CN202311067249A CN116780137A CN 116780137 A CN116780137 A CN 116780137A CN 202311067249 A CN202311067249 A CN 202311067249A CN 116780137 A CN116780137 A CN 116780137A
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- plate
- radio frequency
- sleeve
- filter
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 99
- 229910052802 copper Inorganic materials 0.000 claims description 72
- 239000010949 copper Substances 0.000 claims description 72
- 238000004891 communication Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000006880 cross-coupling reaction Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The application relates to the technical field of filters and discloses a filter capable of being connected with a radio frequency interface, which comprises a filter, a radio frequency wire connected to the interface of the filter and a mounting frame for supporting the filter to be fixed, wherein an input wire and an output wire of the radio frequency wire are respectively screwed on the interfaces of the input end and the output end of the filter. The application adopts the mounting frame to mount and support the filter, the input line and the output line, uses the wire harness sleeve to guide and support the input line and the output line, shields electromagnetic waves generated by external components, improves the working environment of the radio frequency wire, such as electromagnetic interference influence of a power wire and other radio frequency signals, and improves the signal quality; meanwhile, the input line and the output line are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided; in the overall structural design, the electromagnetic interference problem on the radio frequency line is improved, and the filter is convenient for high-quality filtering and amplifying of the frequency which is specially required, so that signals can be stably transmitted.
Description
Technical Field
The application relates to the technical field of filters, in particular to a filter capable of being connected with a radio frequency interface.
Background
With the rapid increase of the operating frequency of electronic devices, the frequency of electromagnetic interference is also increasing, and the interference frequency can reach hundreds of MHz, even more than GHz. It is these very high frequency interference signals that cause the problem of radiated interference to be increasingly serious, as the frequency of the voltage or current is higher, the radiation is more easily generated. Therefore, there is a strong need for a filter that has a high attenuation of the high frequency signal of the radiated interference, which is a radio frequency interference filter.
Radio frequency filters are commonly used in communication, radar and navigation systems to achieve signal isolation in different frequency bands while preventing hostile interference. The working frequencies of the radio frequency wires are very high, strong electromagnetic radiation interference can be generated, electromagnetic interference signals can be generated by the radio frequency wires, the internal elements are concentrated, and the radio frequency wires are influenced by other electromagnetic interference, so that the signals are interfered, and the performance is influenced.
Disclosure of Invention
The application aims to provide a filter capable of being connected with a radio frequency interface, which can improve the electromagnetic interference problem on a radio frequency line, and is convenient for high-quality filtering and amplifying of a specific required frequency so as to ensure stable signal transmission and solve the problems in the background technology.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a filter of joinable radio frequency interface, includes the filter, connects the radio frequency line and supports the fixed mounting bracket of filter on the interface of filter, its characterized in that: the input wire and the output wire of the radio frequency wire are respectively screwed on the interfaces at the input end and the output end of the filter through nuts, the input wire and the output wire are respectively horizontally guided through a metal wire harness frame on the lug plates at the two sides of the mounting frame, the inner copper core wire is contacted on the lug plates through a movable telescopic copper rod penetrating through an insulating skin outside the input wire or the output wire, the bottom of the copper rod is electrically connected with the lug plates, and the two lug plates are grounded through a grounding wire, so that electromagnetic interference is reduced;
each wire harness frame comprises a wire harness sleeve and a rod sleeve which are arranged from top to bottom, the joint end of an input wire or an output wire penetrates through the wire harness sleeve, the wire harness sleeve is used for shielding electromagnetic interference, a copper rod is movably and telescopically connected in the rod sleeve, an arc-shaped raised contact is formed at the top of the copper rod, and the contact sequentially penetrates through a through hole formed in the bottom of the wire harness sleeve and a jack formed in the bottom of an insulating skin until the contact is anastomotic and props against a contact groove formed in the bottom of a copper core wire;
the mounting frame is a metal frame and comprises a middle plate with a trapezoid structure in the middle, the filter is mounted on the middle plate, and two ear plates are integrally connected to two sides of the middle plate respectively; the middle part of the middle plate is provided with a plastic plate for blocking current conduction and also blocking direct communication between the input line and the output line.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the radio frequency wire is arranged as a round wire, and the copper core wire in the wire is a single solid copper wire.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the wire harness sleeve is matched with the radio frequency wire to form a hollow copper strip-shaped sleeve, the bottom of the wire harness sleeve is an arc-shaped plate used for supporting the radio frequency wire, and the upper part of the arc-shaped plate is connected with an arc-shaped shielding net used for shielding electromagnetic waves.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the stick cover sets up to erect the cavity pipe, and bottom fixed connection is on the otic placode, and forms upper end open-ended cover groove in the stick cover inside.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the upper end of the bar sleeve is fixedly connected with the bottom surface of the arc-shaped plate, the bottom of the copper bar is in sliding telescopic connection in the sleeve groove, the bottom of the copper bar passes through the inner bottom surface of the spring connecting sleeve groove, and the bottom surface of the copper bar passes through the lug plate in the inner bottom surface area of the copper wire connecting sleeve groove.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the top of the copper bar is integrally provided with a touch plate which is in an arc-shaped structure and is positioned in the wire harness sleeve; the arc opening of the touch plate faces upwards, the bottom surface cambered surface is coincided with and is adhered to the wall surface of the arc plate, and the bottom surface cambered surface of the touch plate is limited and abutted against the perforation on the arc plate.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the arc-shaped protrusions in the middle of the inner cambered surface of the contact plate form contacts, the jack is matched with the contact plate to form an arc-shaped hole, and the jack is matched with the contact plate in an inserting mode.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the wire harness sleeve and the rod sleeve are arranged in a split mode, a thread sleeve is integrally connected to the position of a perforation at the bottom of the arc-shaped plate, and a thread section is arranged on the inner side of the rod sleeve in a matched mode with the thread sleeve;
the arc-shaped protrusions at the top of the copper bar form contacts, and the upper end and the lower end of the copper bar are respectively connected with a thread sleeve and a bar sleeve in a threaded manner;
the lug plate is fixedly connected with a bent supporting frame, the upper part of the supporting frame is bent to form a horizontal transverse plate, a through hole is formed in the transverse plate, the threaded sleeve is inserted into the through hole, and the bottom of the arc plate is contacted with the transverse plate to horizontally support and fix the lug plate.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the bottom integration of plastic slab is connected with the gusset plate, and the gusset plate is rectangular plate structure, fixed connection in the bottom of medium plate.
As an alternative to the filter connectable to a radio frequency interface according to the present application, wherein: the edges of the two lug plates are provided with mounting holes, and the mounting holes are matched with bolts and fastening nuts to fasten the ground wire; the grounding wire comprises a wire, one end of the wire is connected with copper hoop rings, the two copper hoop rings are sleeved with rod ends of a bolt respectively, the two copper hoop rings are fixed through fastening nuts in a threaded sleeved mode, the other ends of the two wires are wound to form twisted pairs, and the ends of the twisted pairs are grounded together.
Compared with the prior art, the application has the beneficial effects that:
1. the filter capable of being connected with the radio frequency interface adopts the mounting frame to mount and support the filter, the input line and the output line, and the wire harness sleeve is used for guiding and supporting the input line and the output line, so that electromagnetic waves generated by external components are shielded, the working environment of the radio frequency wire, such as electromagnetic interference influence of a power wire and other radio frequency signals, is improved, and the signal quality is improved; meanwhile, the input line and the output line are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided;
2. according to the filter capable of being connected with the radio frequency interface, the filter, the input line and the output line are grounded together in a multipoint mode on the mounting frame through the cooperation of the copper rod and the grounding line, and the quality and stability of radio frequency signals are improved;
3. according to the filter capable of being connected with the radio frequency interface, the middle part of the mounting frame is connected through the plastic plate, and two ends of the mounting frame are not in conductive communication, so that an input line and an output line are not directly communicated, partial signals are prevented from being directly output without filtering, and meanwhile, the multipoint common grounding is guaranteed;
in the overall structural design, the electromagnetic interference problem on the radio frequency line is improved, and the filter is convenient for high-quality filtering and amplifying of the frequency which is specially required, so that signals can be stably transmitted.
Drawings
Fig. 1 is a schematic front view of embodiment 1 of the present application;
FIG. 2 is a schematic view of the front view of the mounting bracket of the present application;
fig. 3 is a schematic view showing a partial cross-sectional structure of the connection relationship at the copper bar in embodiment 1 of the present application;
FIG. 4 is a schematic side view of the input line in embodiment 1 of the present application;
FIG. 5 is a schematic view of the grounding wire of the present application;
fig. 6 is a schematic front view of embodiment 2 of the present application;
fig. 7 is a schematic view showing a partial cross-sectional structure of the connection relationship at the copper bar in embodiment 2 of the present application.
In the figure: 1. a mounting frame; 101. a middle plate; 102. ear plates; 1021. a mounting hole; 103. a plastic plate; 104. a reinforcing plate; 2. a filter; 3. a radio frequency line; 301. an input line; 3011. an insulating skin; 3012. a copper core wire; 3013. a jack; 3014. a touch groove; 302. an output line; 4. a wire harness frame; 401. a rod sleeve; 402. a sleeve groove; 403. a spring; 404. a copper bar; 405. a copper wire; 406. a wire harness sleeve; 4061. an arc-shaped plate; 4062. a shielding net; 4063. perforating; 407. a touch panel; 408. a contact; 409. a support frame; 4091. a through hole; 4010. a thread sleeve; 5. a ground wire; 501. copper hoops; 502. a wire; 503. twisted pair wires; 6. a bolt; 7. and (5) fastening the nut.
Detailed Description
The following description of the embodiments of the present application 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 application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Referring to fig. 1-3, a filter capable of being connected to a radio frequency interface includes a filter 2, a radio frequency wire 3 connected to the interface of the filter 2, and a mounting frame 1 for supporting the filter 2 to be fixed, wherein an input wire 301 and an output wire 302 of the radio frequency wire 3 are respectively screwed on the interfaces of the input end and the output end of the filter 2 by nuts, an input wire 301 and an output wire 302 are respectively guided horizontally by a metal wire harness 4 on the ear plates 102 on two sides of the mounting frame 1, and the ear plates 102 are contacted with an internal copper core 3012 by a movable telescopic copper rod 404 through an insulating skin 3011 outside the input wire 301 or the output wire 302, the bottom of the copper rod 404 is electrically connected with the ear plates 102, and the two ear plates are grounded by a grounding wire 5, so that electromagnetic interference is reduced;
each wire harness 4 includes a harness sleeve 406 and a rod sleeve 401 arranged from top to bottom, the joint end of the input wire 301 or the output wire 302 passing through the harness sleeve 406, the harness sleeve 406 being used to shield electromagnetic interference.
Wherein the radio frequency wire 3 is arranged as a round wire, and the copper core wires 3012 in the wire are single solid copper wires.
In this embodiment, the wire harness sleeve 406 is matched with the rf wire 3 to form a hollow copper strip-shaped sleeve, the bottom is an arc 4061 for supporting the rf wire 3, and the upper portion of the arc 4061 is connected with an arc shielding net 4062 for shielding electromagnetic waves.
That is, when the input line 301 or the output line 302 is connected to the filter 2, the joint ends of the input line 301 and the output line 302 respectively pass through a wire harness sleeve 406, an arc 4061 at the bottom of the wire harness sleeve 406 is used for supporting, and a shielding net 4062 at the upper part is used for shielding electromagnetic waves generated by external components, so that the working environment of the radio frequency line 3 is improved, the interference of external electromagnetic waves, such as the electromagnetic interference influence of a power line and other radio frequency signals, is reduced, and the signal quality is improved.
Meanwhile, the input line 301 and the output line 302 are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided.
The copper bar 404 is movably and telescopically connected in the bar sleeve 401, an arc-shaped convex contact 408 is formed at the top of the copper bar 404, and the contact 408 sequentially passes through a through hole 4063 formed at the bottom of the wire harness sleeve 406 and a jack 3013 formed at the bottom of the insulating sheath 3011 until the contact 408 is anastomotic and props against a contact groove 3014 formed at the bottom of the copper core 3012;
the installation frame 1 is a metal frame and comprises a middle plate 101 with a trapezoid structure in the middle, the filter 2 is installed on the middle plate 101, and two lug plates 102 are integrally connected to two sides of the middle plate 101 respectively;
wherein, the rod sleeve 401 is a hollow round tube, the bottom is fixedly connected to the ear plate 102, and a sleeve groove 402 with an open upper end is formed in the rod sleeve 401;
in this embodiment, the upper end of the rod sleeve 401 is fixedly connected to the bottom surface of the arc 4061, the bottom of the copper rod 404 is slidably and telescopically connected in the sleeve groove 402, the bottom of the copper rod 404 is connected to the inner bottom surface of the sleeve groove 402 through the spring 403, and the bottom of the copper rod 404 is connected to the ear plate 102 in the inner bottom surface area of the sleeve groove 402 through the copper wire 405, wherein the copper wire 405 is located in the spring, and the copper rod 404 is bent and stretched, so that the input wire 301 or the output wire 302 can be stretched along with the expansion and contraction of the copper rod 404, and the copper wire 405 is respectively connected to the ear plate 102 at the bottom of each copper rod.
Further, a touch plate 407 is integrally arranged at the top of the copper bar 404, and the touch plate 407 is in an arc-shaped structure and is positioned in the wire harness sleeve 406; the arc opening of the touch plate 407 faces upwards, the bottom arc surface is matched with the wall surface of the arc plate 4061, the bottom arc surface of the touch plate 407 is limited and abutted against the perforation on the arc plate 4061, and the downward moving position of the copper bar 404 is limited.
Further, the arc-shaped protrusion in the middle of the intrados of the contact plate 407 forms a contact 408, the jack 3013 is matched with the contact plate 407 to form an arc-shaped hole, the jack 3013 is in plug-in fit with the contact plate 407, so that the contact 408 is matched and abutted against the contact groove 3014 at the bottom of the copper core 3012, and meanwhile, the inner arc-shaped surface of the contact plate 407 is also contacted with the exposed copper surface at the bottom of the copper core 3012 for contact connection.
That is, the wire harness sleeve 406 is fixedly arranged on the ear plates 102 through the rod sleeve 401 at the bottom, and a stable wire harness frame 4 is respectively formed on the ear plates 102 at the two sides of the mounting frame 1; firstly, the filter 2 is fixedly installed on the middle plate 101 of the installation frame 1 (here, it needs to be described that the radio frequency filter is in the prior art, the edge of the existing radio frequency filter is provided with an installation plate with holes, the installation plate can be fixedly installed by screws, in the application, the installation plate can be fixedly installed on the end face of the middle plate 101 by screws), then the input wire 301 starts to pass through the wire harness sleeve 406, the wire body of the input wire 301 passes through the intrados of the contact plate 407, at this time, the spring 403 is in a compressed state until the input wire 301 is connected with the interface end of the filter 2, the contact plate 407 just falls into the jack 3013, the intrados of the contact plate 407 contacts the exposed copper face at the bottom of the copper core 3012, and the contact 408 is in fit with and props against the contact groove 3014 at the bottom of the copper core 3012. Similarly, the output line 302 is wired on the other side of the filter 2.
Above-mentioned, utilize beam hanger 4 shielding external components and parts electromagnetic wave that produce, improve the operational environment of radio frequency line 3, reduce the interference of external electromagnetic wave, for example the electromagnetic interference influence of power cord and other radio frequency signals, improve signal quality. Meanwhile, the input line 301 and the output line 302 are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided. In addition, the input line 301 and the output line 302 of the radio frequency line 3 and the filter 2 are in contact connection with the copper mounting frame 1, and are grounded in a multipoint manner in cooperation with a grounding wire, so that the stability of radio frequency signals is improved.
It should be noted that the rf wire 3 is screwed on the filter 2 through a nut, and after alignment, the rf wire 3 and the filter 2 do not need to be twisted, so that the rf wire 3 and the filter 2 are conveniently connected and arranged on the mounting frame 1.
A plastic board 103 is provided in the middle of the middle board 101 to block current conduction and also to block direct communication of the input line 301 and the output line 302.
The bottom of the plastic plate 103 is integrally connected with a reinforcing plate 104, and the reinforcing plate 104 is of a rectangular plate structure and is fixedly connected to the bottom of the middle plate 101.
That is, the mounting frame 1 is symmetrically divided into two parts, the middle part is connected to the middle plate 101 through the plastic plate 103 to form a flat plate surface, the reinforcing plate 104 at the bottom of the plastic plate 103 is fixedly connected to two ends of the bottom surface of the middle plate 101, and the division is performed to fix the division, so that the stable mounting frame 1 is formed.
In this way, the ear plates 102 at two ends of the mounting frame 1 are connected through the plastic plate 103 and are not in conductive communication, the input line 301 and the output line 302 are not in direct communication, and partial signals are prevented from being directly output without filtering.
To facilitate the multipoint grounding of the radio frequency line 3 and the filter 2:
wherein, the edges of the two ear plates 102 are provided with mounting holes 1021, and the mounting holes 1021 are matched with bolts 6 and fastening nuts 7 to fasten the ground wire 5;
further, the ground wire 5 includes a wire 502, one end of the wire 502 is connected with copper hoop rings 501, two copper hoop rings 501 are respectively sleeved corresponding to the rod ends of one bolt 6, the two copper hoop rings are fixed by fastening nuts 7 in a threaded sleeved mode, the other ends of the two wires 502 are wound to form twisted pairs 503, electromagnetic waves are offset from each other between the wires 502, and the ends of the twisted pairs 503 are commonly grounded.
It is necessary to explain that: after the radio frequency wire 3 is connected to the filter 2, the bolts 6 and the fastening nuts 7 are matched at the two ear plates 102, the mounting frame 1 is mounted at a radio frequency working place, and meanwhile, the copper hoops 501 are used for contacting the connecting ear plates 102 at the bolts 6, so that the connecting ear plates are grounded together with the filter 2, the input wire 301 and the output wire 302 through the grounding wire 5 in multiple points.
After the grounding, the signal reflux is reduced, and the quality and reliability of the received transmission are improved; when high-voltage pulse occurs, the grounding can also play a role in protection, so that components are protected from being damaged; the grounding can also prevent static electricity and static discharge in the air, reduce signal reduction caused by discharge, and further improve the reliability of radio frequency alternating current signals.
Example 2
Referring to the partial structure of the embodiment 1, referring to fig. 6-7 again, a filter capable of connecting with a radio frequency interface includes a filter 2, a mounting frame 1 connected with a radio frequency line 3 and supporting the filter 2 for fixing on the interface of the filter 2, an input line 301 and an output line 302 of the radio frequency line 3 are respectively screwed on the interfaces of the input end and the output end of the filter 2 by nuts, an ear plate 102 on two sides of the mounting frame 1 is respectively used for horizontally guiding the input line 301 and the output line 302 by a metal wire harness 4, a copper bar 404 which is movably telescopic is used for contacting with an internal copper core 3012 by penetrating through an insulating skin 3011 outside the input line 301 or the output line 302 on the ear plate 102, the bottom of the copper bar 404 is electrically connected with the ear plate 102, and the two ear plates are grounded by a grounding wire 5, so that electromagnetic interference is reduced;
each wire harness 4 includes a harness sleeve 406 and a rod sleeve 401 arranged from top to bottom, the joint end of the input wire 301 or the output wire 302 passing through the harness sleeve 406, the harness sleeve 406 being used to shield electromagnetic interference.
Wherein the radio frequency wire 3 is arranged as a round wire, and the copper core wires 3012 in the wire are single solid copper wires.
In this embodiment, the wire harness sleeve 406 is matched with the rf wire 3 to form a hollow copper strip-shaped sleeve, the bottom is an arc 4061 for supporting the rf wire 3, and the upper portion of the arc 4061 is connected with an arc shielding net 4062 for shielding electromagnetic waves.
That is, when the input line 301 or the output line 302 is connected to the filter 2, the joint ends of the input line 301 and the output line 302 respectively pass through a wire harness sleeve 406, an arc 4061 at the bottom of the wire harness sleeve 406 is used for supporting, and a shielding net 4062 at the upper part is used for shielding electromagnetic waves generated by external components, so that the working environment of the radio frequency line 3 is improved, the interference of external electromagnetic waves, such as the electromagnetic interference influence of a power line and other radio frequency signals, is reduced, and the signal quality is improved.
Meanwhile, the input line 301 and the output line 302 are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided.
The copper bar 404 is movably and telescopically connected in the bar sleeve 401, an arc-shaped convex contact 408 is formed at the top of the copper bar 404, and the contact 408 sequentially passes through a through hole 4063 formed at the bottom of the wire harness sleeve 406 and a jack 3013 formed at the bottom of the insulating sheath 3011 until the contact 408 is anastomotic and props against a contact groove 3014 formed at the bottom of the copper core 3012;
the installation frame 1 is a metal frame and comprises a middle plate 101 with a trapezoid structure in the middle, the filter 2 is installed on the middle plate 101, and two lug plates 102 are integrally connected to two sides of the middle plate 101 respectively;
wherein, the rod sleeve 401 is a hollow round tube, the bottom is fixedly connected to the ear plate 102, and a sleeve groove 402 with an open upper end is formed in the rod sleeve 401;
this example 2 is another wiring method for distinguishing example 1:
the wire harness sleeve 406 is detached from the rod sleeve 401, a threaded sleeve 4010 is integrally connected at a position of a through hole 4063 at the bottom of the arc-shaped plate 4061, and a threaded section is arranged on the inner side of the rod sleeve 401 in cooperation with the threaded sleeve 4010;
the arc-shaped bulge at the top of the copper bar 404 forms a contact 408, and the upper end and the lower end of the copper bar 404 are respectively connected with the threaded sleeve 4010 and the bar sleeve 401 in a threaded manner until the bottom of the copper bar 404 abuts against the lug plate 102, and at the moment, the contact 408 is also anastomotic and abutted against the bottom contact groove 3014 of the copper core wire 3012;
the ear plate 102 is fixedly connected with a bent supporting frame 409, the upper part of the supporting frame 409 is bent to form a horizontal transverse plate, a through hole 4091 is formed in the transverse plate, a thread bush 4010 is inserted into the through hole 4091, and the bottom of the arc plate 4061 is contacted with the transverse plate to be horizontally supported and fixed.
That is, the harness sleeve 406 can be individually held and passed through the joint end of the input wire 301 or the output wire 302, and the harness sleeve 406 is held after threading, the screw sleeve 4010 is aligned with the through hole 4091 in the support bracket 409, and the copper rod 404 is held and placed between the screw sleeve 4010 and the rod sleeve 401. The copper bar 404 rotates clockwise, two ends of the copper bar 404 are respectively connected with the thread sleeve 4010 and the bar sleeve 401 in a threaded manner, the copper bar 404 and the wire harness sleeve 406 are gradually moved downwards in the process until the bottom of the copper bar 404 abuts against the lug plate 102, the bottom of the arc plate 4061 abuts against the transverse plate to support, at the moment, the contact 408 also abuts against the contact groove 3014 at the bottom of the copper core 3012, and the radio frequency wire 3 is installed to be connected on the filter 2.
The beam frame 4 is used for shielding external electromagnetic waves, so that the use environment of the radio frequency wire 3 is improved, the interference of the external electromagnetic waves, such as the electromagnetic interference influence of a power wire and other radio frequency signals, is reduced, and the signal quality is improved. Meanwhile, the input line 301 and the output line 302 are restrained and fixed and do not cross or run in parallel, so that cross coupling is prevented, and unnecessary signal interference caused by coupling is avoided. In addition, the input line 301 and the output line 302 of the radio frequency line 3 and the filter 2 are in contact connection with the copper mounting frame 1, and are grounded in a multipoint manner in cooperation with a grounding wire, so that the stability of radio frequency signals is improved.
It should be noted that the rf wire 3 is screwed on the filter 2 through a nut, and after alignment, the rf wire 3 and the filter 2 do not need to be twisted, so that the rf wire 3 and the filter 2 are conveniently connected and arranged on the mounting frame 1.
A plastic board 103 is provided in the middle of the middle board 101 to block current conduction and also to block direct communication of the input line 301 and the output line 302.
The bottom of the plastic plate 103 is integrally connected with a reinforcing plate 104, and the reinforcing plate 104 is of a rectangular plate structure and is fixedly connected to the bottom of the middle plate 101.
That is, the mounting frame 1 is symmetrically divided into two parts, the middle part is connected to the middle plate 101 through the plastic plate 103 to form a flat plate surface, the reinforcing plate 104 at the bottom of the plastic plate 103 is fixedly connected to two ends of the bottom surface of the middle plate 101, and the division is performed to fix the division, so that the stable mounting frame 1 is formed.
In this way, the ear plates 102 at two ends of the mounting frame 1 are connected through the plastic plate 103 and are not in conductive communication, the input line 301 and the output line 302 are not in direct communication, and partial signals are prevented from being directly output without filtering.
To facilitate the multipoint grounding of the radio frequency line 3 and the filter 2:
wherein, the edges of the two ear plates 102 are provided with mounting holes 1021, and the mounting holes 1021 are matched with bolts 6 and fastening nuts 7 to fasten the ground wire 5;
further, the ground wire 5 includes a wire 502, one end of the wire 502 is connected with copper hoop rings 501, two copper hoop rings 501 are respectively sleeved corresponding to the rod ends of one bolt 6, the two copper hoop rings are fixed by fastening nuts 7 in a threaded sleeved mode, the other ends of the two wires 502 are wound to form twisted pairs 503, electromagnetic waves are offset from each other between the wires 502, and the ends of the twisted pairs 503 are commonly grounded.
It is necessary to explain that: after the radio frequency wire 3 is connected to the filter 2, the bolts 6 and the fastening nuts 7 are matched at the two ear plates 102, the mounting frame 1 is mounted at a radio frequency working place, and meanwhile, the copper hoops 501 are used for contacting the connecting ear plates 102 at the bolts 6, so that the connecting ear plates are grounded together with the filter 2, the input wire 301 and the output wire 302 through the grounding wire 5 in multiple points.
After the grounding, the signal reflux is reduced, and the quality and reliability of the received transmission are improved; when high-voltage pulse occurs, the grounding can also play a role in protection, so that components are protected from being damaged; the grounding can also prevent static electricity and static discharge in the air, reduce signal reduction caused by discharge, and further improve the reliability of radio frequency alternating current signals.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a filter of joinable radio frequency interface, includes filter (2), connects radio frequency line (3) and support fixed mounting bracket (1) of filter (2) on the interface of filter (2), its characterized in that: the input wire (301) and the output wire (302) of the radio frequency wire (3) are respectively screwed on interfaces at the input end and the output end of the filter (2), the input wire (301) and the output wire (302) are respectively horizontally guided through a metal wire harness frame (4) on the ear plates (102) at the two sides of the mounting frame (1), an inner copper core wire (3012) is contacted on the ear plates (102) through a movable telescopic copper rod (404) penetrating through an insulating skin (3011) outside the input wire (301) or the output wire (302), the bottom of the copper rod (404) is electrically connected with the ear plates (102), and the two ear plates are grounded through a grounding wire (5), so that electromagnetic interference is reduced;
each wire harness frame (4) comprises a wire harness sleeve (406) and a rod sleeve (401) which are arranged from top to bottom, the joint end of the input wire (301) or the output wire (302) passes through the wire harness sleeve (406), the wire harness sleeve (406) is used for shielding electromagnetic interference, the rod sleeve (401) is movably connected with a copper rod (404) in a telescopic manner, an arc-shaped raised contact (408) is formed at the top of the copper rod (404), the contact (408) sequentially passes through a through hole (4063) formed at the bottom of the wire harness sleeve (406) and a jack (3013) formed at the bottom of an insulating sheath (3011) until the contact (408) is anastomotic in a contact groove (3014) formed at the bottom of a copper core wire (3012);
the mounting frame (1) is a metal frame and comprises a middle plate (101) with a trapezoid structure in the middle, the filter (2) is mounted on the middle plate (101), and two ear plates (102) are integrally connected to two sides of the middle plate (101) respectively; a plastic plate (103) is arranged in the middle of the middle plate (101) to block current conduction and also to block direct communication between an input line (301) and an output line (302).
2. A filter connectable to a radio frequency interface as claimed in claim 1, wherein: the radio frequency wire (3) is arranged as a round wire, and the copper core wire (3012) in the wire is a single solid copper wire.
3. A filter connectable to a radio frequency interface as claimed in claim 2, wherein: the wire harness sleeve (406) is matched with the radio frequency wire (3) to form a hollow copper strip-shaped sleeve, the bottom of the wire harness sleeve is an arc-shaped plate (4061) for supporting the radio frequency wire (3), and the upper part of the arc-shaped plate (4061) is connected with an arc-shaped shielding net (4062) for shielding electromagnetic waves.
4. A filter connectable to a radio frequency interface as claimed in claim 3, wherein: the rod sleeve (401) is a vertical hollow round tube, the bottom of the rod sleeve is fixedly connected to the ear plate (102), and a sleeve groove (402) with an opening at the upper end is formed in the rod sleeve (401).
5. A filter connectable to a radio frequency interface as claimed in claim 4, wherein: the upper end of the bar sleeve (401) is fixedly connected with the bottom surface of the arc-shaped plate (4061), the bottom of the copper bar (404) is connected in the sleeve groove (402) in a sliding and telescopic mode, the bottom of the copper bar (404) is connected with the inner bottom surface of the sleeve groove (402) through a spring (403), and the bottom surface of the copper bar (404) is connected with the lug plate (102) in the inner bottom surface area of the sleeve groove (402) through a copper wire (405).
6. A filter connectable to a radio frequency interface as claimed in claim 5, wherein: the top of the copper bar (404) is integrally provided with a touch plate (407), and the touch plate (407) is of an arc-shaped structure and is positioned in the wire harness sleeve (406); the arc opening of the touch plate (407) faces upwards, the bottom surface arc surface is matched with the wall surface of the arc plate (4061), and the bottom surface arc surface of the touch plate (407) is limited and abutted against the perforation on the arc plate (4061).
7. A filter connectable to a radio frequency interface as claimed in claim 6, wherein: the middle arc-shaped bulge of the intrados of the contact plate (407) forms a contact (408), the jack (3013) is matched with the contact plate (407) to form an arc-shaped hole, and the jack (3013) is matched with the contact plate (407) in a plugging manner.
8. A filter connectable to a radio frequency interface as claimed in claim 4, wherein: the wire harness sleeve (406) is arranged in a split mode with the rod sleeve (401), a threaded sleeve (4010) is integrally connected to the position of a through hole (4063) in the bottom of the arc-shaped plate (4061), and a threaded section is arranged on the inner side of the rod sleeve (401) in a matched mode with the threaded sleeve (4010);
the arc-shaped protrusions at the top of the copper rod (404) form a contact (408), and the upper end and the lower end of the copper rod (404) are respectively connected with a threaded sleeve (4010) and a rod sleeve (401) in a threaded manner;
the lug plate (102) is fixedly connected with a bent supporting frame (409), the upper part of the supporting frame (409) is bent to form a horizontal transverse plate, a through hole (4091) is formed in the transverse plate, the threaded sleeve (4010) is inserted into the through hole (4091), and the bottom of the arc plate (4061) is fixedly supported horizontally by being attached to the transverse plate.
9. A filter connectable to a radio frequency interface according to claim 7 or 8, wherein: the bottom of plastic slab (103) is connected with gusset plate (104) in an integral way, gusset plate (104) is rectangular plate structure, fixed connection in the bottom of medium plate (101).
10. A filter connectable to a radio frequency interface as claimed in claim 9, wherein: the edges of the two lug plates (102) are provided with mounting holes (1021), the mounting holes (1021) are matched with bolts (6) and fastening nuts (7), and the ground wire (5) is fastened; the grounding wire (5) comprises a wire (502), one end of the wire (502) is connected with copper hoop rings (501), two copper hoop rings (501) are sleeved with rod ends of a bolt (6) respectively, the wire is fixed through a fastening nut (7) in threaded sleeved mode, a twisted pair (503) is formed by winding the other ends of the two wires (502), and the ends of the twisted pair (503) are grounded together.
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| CN202311067249.XA CN116780137B (en) | 2023-08-23 | 2023-08-23 | Filter capable of being connected with radio frequency interface |
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| CN202311067249.XA CN116780137B (en) | 2023-08-23 | 2023-08-23 | Filter capable of being connected with radio frequency interface |
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