CN204407451U - Broadband cylindricality antenna feeder lightning arrester - Google Patents
Broadband cylindricality antenna feeder lightning arrester Download PDFInfo
- Publication number
- CN204407451U CN204407451U CN201520100053.0U CN201520100053U CN204407451U CN 204407451 U CN204407451 U CN 204407451U CN 201520100053 U CN201520100053 U CN 201520100053U CN 204407451 U CN204407451 U CN 204407451U
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- connector
- lightning arrester
- antenna feeder
- core
- housing
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Abstract
Broadband cylindricality antenna feeder lightning arrester.Mainly solving existing T-shaped quarter-wave antenna feeder lightning arrester takes up room greatly, the not compact problem not enough in bandwidth of structure; The insertion loss overcoming the existence of general column type quarter-wave lightning arrester is large, easily to the problem that communication signal transmissions impacts.The utility model provides a kind of broadband cylindricality antenna feeder lightning arrester, also connector is provided with between its first housing and second housing, cylindrical inner chamber and toroidal cavity is had in connector, cylindrical cavity and first, the inner chamber of two housings communicates, spiral short circuit core is provided with in toroidal cavity, also be provided with dividing wall cylindrical inner chamber and toroidal cavity separated, spiral short circuit core is connected with main coaxial core through the through hole on dividing wall, this broadband cylindricality antenna feeder lightning arrester takes up room little, install unrestricted, discharge channel is approximate to be closed, discharge process is little on signal of communication impact, insertion loss is low.Owing to adopting helical discharge inner core, pass band, highly versatile.
Description
Technical field
Lightning arrester of the present utility model is mainly used in field of microwave communication, particularly broadband cylindricality antenna feeder lightning arrester.
Background technology
Antenna feeder lightning arrester is the requisite original paper of microwave communication, is connected on transmitting antenna or the coaxial cable between reception antenna and calculator room equipment, invades machine room, thus avoid the infringement to communication equipment for blocking lightning surge pulse.This lightning arrester thunder and lightning filtering, must can not have too much influence to the signal of communication of transmission on the one hand simultaneously.T-shaped antenna feeder lightning arrester is exactly the lightning arrester of the spectrum distribution different designs according to signal of communication frequency spectrum and lightening pulse.The frequency spectrum of the lightening pulse low-frequency component mainly below direct current and frequency tens KHz, and communication frequency is all that the microwave signal of hundreds of more than million is as 800 ~ 2500MHz, both differences obviously, according to quarter-wave impedance transformation principle, the Design of length of the short-circuit coaxial line in this protector is become 1/4th of operation wavelength, the short-circuit coaxial line of this parallel connection is for working signal, be equivalent to open circuit, do not affect the transmission of signal of communication, but for lightning wave, because thunder energy is mainly distributed in below tens KHz, short-circuit coaxial line is very little for lightning wave impedance, be similar to short circuit, thunder energy is released into ground.
There is certain fault of construction in existing T-shaped antenna feeder lightning arrester, because be T-shaped structure, takes up room larger, and make materials many, not only cost is high, is also unfavorable for installing and using in the place of limited space.Another defect is that this lightning arrester passband is narrow, for conventional microwave communication frequency band 800 ~ 2500MHz, segment design to install, does not have versatility, purchase commercial city bring unnecessary extra cost to production firm and communication equipment.Though and for general cylindricality antenna feeder lightning arrester compact conformation, also there is some problems, communicate completely without any isolation as short-channel or with main channel, on such short-channel, lightning wave can cause larger impact to the Signal transmissions of main channel, and Insertion Loss can be larger; Though what have has isolation, short-channel structure does not limit, Electromagnetic Wave Propagation complex forms, and passband is wide not, and standing-wave ratio is high, the bad adjustment of standing-wave ratio, manufactures and designs all inconvenient.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of wide band cylindricality antenna feeder lightning arrester, mainly solves: general antenna feeder lightning arrester or volume ratio are comparatively large, takes up room large, installs inconvenient problem; Short-channel can have larger impact to main channel, the problem that insertion loss is large; Passband is wide not, the problem that product can not be general.
The technical scheme that the utility model adopts is:
Broadband cylindricality antenna feeder lightning arrester, comprise coaxial mounted main coaxial core and main same shaft housing, described master comprises the first shell and the second housing of hollow with shaft housing, it is characterized in that: between described first shell and second housing, be also coaxially provided with connector, coaxially cylindrical cavity is provided with in described connector, the spiral short circuit core of ring-type and the toroidal cavity for placing described spiral short circuit core, described cylindrical cavity communicates with the inner chamber of the first shell and second housing, described spiral short circuit core comprises top, the helicoid of ring-type and end, corresponding with described spiral short circuit core and the dividing wall described toroidal cavity and described cylindrical cavity separated also is provided with in described connector, described dividing wall is provided with through hole, the top of described spiral short circuit core passes described through hole and is connected with main coaxial core, described end is connected with dividing wall.
Also comprise insulating supporting ring, described insulating supporting ring set is located at outside described helicoid.
Described main coaxial core comprises removably connect the first inner core and the second inner core, described connector comprises the first connector and the second connector that removably connect, described first connector and described first shell are wholely set or removably connect, and described second housing and the second connector are wholely set or removably connect.
Described first connector and described first shell are threaded connection, and described second housing and the second connector are threaded connection, and described first inner core and the second inner core are threaded connection.
Described first connector is also provided with grounding screw rod.
Described top is direct rod shape and is crimped with connecting ring, and described first inner core end is provided with screw rod, and described second inner core end is provided with swivel nut, and described screw rod passes described connecting ring and is connected with described swivel nut.
The axial cross section of described toroidal cavity is circular or square, and the radial section of described connector is circular.
The inner chamber of described cylindrical cavity and the first shell and second housing is isometrical.
Described insulating supporting ring is polytetrafluoroethylene support ring.
The beneficial effects of the utility model are:
The utility model provides a kind of broadband cylindricality antenna feeder lightning arrester, also connector is provided with between its first housing and second housing, cylindrical inner chamber and toroidal cavity is had in connector, cylindrical cavity and first, the inner chamber of two housings communicates, spiral short circuit core is provided with in toroidal cavity, also be provided with dividing wall cylindrical inner chamber and toroidal cavity separated, spiral short circuit core is connected with main coaxial core through the through hole on dividing wall, this broadband cylindricality antenna feeder lightning arrester takes up room little, install unrestricted, discharge channel is approximate to be closed, discharge process is little on signal of communication impact, insertion loss is low.Owing to adopting helical discharge inner core, pass band, highly versatile.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model embodiment.
Fig. 2 is the explosive view of the utility model embodiment.
Fig. 3 is the inner local structural graph that the utility model one is implemented.
In figure: 2, first shell, 3, connector, 4, second housing, 5, first inner core, 6, second inner core, 31, first connector, 32, second connector, 33, spiral short circuit core, 23, plug body, 21, first body seal circle, 22, plug body end external screw thread, 310, seal washer, 311, standing screw, 312, grounding screw rod, 51, first inner core contact pin, 52, polytetrafluoroethylene support ring, 53, first inner core impedance matching joint, 54, screw rod, 330, connecting ring, 331, top, 332, insulating supporting ring, 333, helicoid, 334, end, 61, second inner core jack, 62, polytetrafluoroethylene support ring, 63, second inner core impedance transformation joint, 64, second inner core internal thread, 321, toroidal cavity, 322, cylindrical cavity, 320, dividing wall, 41, jack housing, 42, jack housing external screw thread.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail: a kind of broadband cylindricality antenna feeder lightning arrester, comprise coaxial mounted main coaxial core and main same shaft housing, described master comprises the first shell 2 and the second housing 4 of hollow with shaft housing, it is characterized in that: between described first shell 2 and second housing 4, be also coaxially provided with connector 3, cylindrical cavity 322 is coaxially provided with in described connector 3, the spiral short circuit core 33 of ring-type and the toroidal cavity 321 for placing described spiral short circuit core 33, described cylindrical cavity 322 communicates with the inner chamber of the first shell 2 and second housing 4, described spiral short circuit core 33 comprises top 331, end 334 and be located at the helicoid 333 of the ring-type between described top 331 and end 334, corresponding with described spiral short circuit the core 33 and dividing wall 320 described toroidal cavity 321 and described cylindrical cavity 322 separated also is provided with in described connector 3, described dividing wall 320 is provided with through hole 3202, described top 331 passes described through hole 3202 and is connected with main coaxial core, described end 334 is connected with dividing wall 320.The thickness of the length of described spiral short circuit core, radius, cross-sectional area of conductor, the number of the number of turn, the length of two ends bonding conductor and thickness all can according to circumstances be determined.There is coaxial looping snail spin line electric discharge core (i.e. spiral short circuit core) described toroidal cavity 321 inside, the top of spiral short circuit core 33 welds the top 331 of a direct rod shape, there is connecting ring 330 termination at top 331, the through hole of connecting ring 330 is just through the screw rod 54 of the first inner core 5 end, spiral short circuit core comprises the end 334 with a circular section arc conducting rod, and end 334 mates with the groove size in the dividing wall 320 in described connector and forms good electrical connection.One end of toroidal cavity is straight circular cylinder type, and communicates as thunder discharge passage with the cylindrical cavity of longitudinal direction.Lightning wave is guided by the spiral short circuit core of annular, runs in ring discharge port annular cavity 321, discharges with the link position of the isolation part 320 in connector at the end 334 of spiral short circuit core 33.Because passage is closed, little on the signal of communication impact in through cylindrical passageway, insertion loss is low, and the impedance of spiral inner core is high, cause overall passband wider, product highly versatile, can cost saving to lightning arrester manufacturer and communication operation purchaser.The utility model provides a kind of broadband cylindricality antenna feeder lightning arrester, also connector is provided with between its first housing and second housing, cylindrical inner chamber and toroidal cavity is had in connector, cylindrical cavity and first, the inner chamber of two housings communicates, spiral short circuit core is provided with in toroidal cavity, also be provided with dividing wall cylindrical inner chamber and toroidal cavity separated, spiral short circuit core is connected with main coaxial core through the through hole on dividing wall, this broadband cylindricality antenna feeder lightning arrester takes up room little, install unrestricted, discharge channel is approximate to be closed, discharge process is little on signal of communication impact, insertion loss is low.Owing to adopting helical discharge inner core, pass band, highly versatile.
In the utility model, as shown in the figure, also comprise insulating supporting ring 332, described insulating supporting ring 332 is set in outside described helicoid 333.The outer end cover of described toroidal helical inner core has annular insulating supporting ring 332, insulating supporting ring 332 coupling is positioned in the toroidal cavity 321 of connector 3, described insulating supporting ring 332 length or number are determined according to needing, placement two insulating supporting rings are preferably in the utility model, not only compact conformation, and it is stable that spiral short circuit core can be made to install, result of use is good.
In the utility model, as shown in the figure, described main coaxial core comprises first inner core 5 and the second inner core 6 that removably connect, described connector 3 comprises the first connector 31 and the second connector 32 removably connected, described first connector 31 is wholely set with described first shell 2 or removably connects, and described second housing 4 and the second connector 32 are wholely set or removably connect.First inner core is provided with contact pin, and the second inner core is provided with jack, and the first connector here and the first shell can adopt the structure being made into integration or removably connecting according to the actual requirements, and the second connector and second housing are in like manner.Several cylindricality impedance transformation joints that first inner core divides the radius of contact pin and the circular section be coaxially connected successively comprising end not wait, between the first inner core and shell, there is teflon insulation support ring, inside contact pin and the shell corresponding with it, form 50 ohm characteristic impedance of standard.Described second inner core is divided and is comprised the impedance transformation joint that jack and several radiuses do not wait and be coaxially connected successively, has teflon insulation support ring between the second inner core and shell, forms 50 ohm characteristic impedance of standard inside jack and the shell corresponding with it.
In the utility model, as shown in the figure, described first connector 31 is threaded connection with described first shell 2, and described second housing 4 and the second connector 32 are threaded connection, and described first inner core 5 and the second inner core 6 are threaded connection.In the utility model, preferably, first connector and the first shell are for being threaded connection, second connector and second housing are for being threaded connection, such structure is convenient when assembling, and be convenient to processing, and sealing ring 310 is also provided with between the first connector and the second connector, ensure sealing property.
In the utility model, as shown in the figure, described first connector 31 is also provided with grounding screw rod 312.Connect electric discharge earth connection by screw rod 312, use safer.
In the utility model, as shown in the figure, described top 331 is direct rod shape and is crimped with connecting ring 330, and described first inner core 5 end is provided with screw rod 54, described second inner core 6 end is provided with swivel nut 64, and described screw rod 54 passes described connecting ring 330 and is connected with described swivel nut 64.
In the utility model, as shown in the figure, the axial cross section of described toroidal cavity 321 is circular or square, and the radial section of described connector 3 is circular.Circular result of use is better, with spiral short circuit core 33 with the use of time, anti-more even.
In the utility model, as shown in the figure, the inner chamber of described cylindrical cavity 322 and the first shell 2 and second housing 4 is isometrical.Described cylindrical connector part 3 is axially forming coaxial cylindrical cavity 322, cavity 322 outer wall in described first connector is connected with plug body 2 inwall, cavity 322 outer wall in described second connector is connected with the inwall of second housing 4, form through isometrical coaxial cylindrical cavity, this cavity is the passage of signal of communication.
In the utility model, as shown in the figure, described insulating supporting ring 332 is polytetrafluoroethylene support ring.Polytetrafluoroethylene has excellent chemical stability, corrosion resistance, be one of decay resistance optimal material in the world today, have sealing, height lubricates not viscosity, electrical insulating property and good ageing resistance, heatproof excellence (can long-term work at the temperature of+250 DEG C to-180 DEG C) and polytetrafluoroethylene itself does not have toxicity to people.
The attachment unit interface at described cylindricality antenna feeder lightning arrester two ends is the supporting forms of plug and socket; also can be two ends be all plug and form; or two ends are all socket type, the interface of the present embodiment is L29 form, based on the design's principle design other interface shape also protection within.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection range of the present utility model.
Claims (8)
1. a broadband cylindricality antenna feeder lightning arrester, comprise coaxial mounted main coaxial core and main same shaft housing, described master comprises the first shell (2) and the second housing (4) of hollow with shaft housing, it is characterized in that: between described first shell (2) and second housing (4), be also coaxially provided with connector (3), cylindrical cavity (322) is coaxially provided with in described connector (3), the spiral short circuit core (33) of ring-type and the toroidal cavity (321) for placing described spiral short circuit core (33), described cylindrical cavity (322) communicates with the inner chamber of the first shell (2) and second housing (4), described spiral short circuit core (33) comprises top (331), end (334) and be located at the helicoid (333) of the ring-type between described top (331) and end (334), corresponding with described spiral short circuit core (33) and the dividing wall (320) described toroidal cavity (321) and described cylindrical cavity (322) separated also is provided with in described connector (3), described dividing wall (320) is provided with through hole (3202), described top (331) is through described through hole (3202) and be connected with main coaxial core, described end (334) is connected with dividing wall (320).
2. broadband according to claim 1 cylindricality antenna feeder lightning arrester, is characterized in that: also comprise insulating supporting ring (332), and described insulating supporting ring (332) is set in described helicoid (333) outside.
3. broadband according to claim 1 cylindricality antenna feeder lightning arrester, it is characterized in that: described main coaxial core comprises removably connect the first inner core (5) and the second inner core (6), described connector (3) comprises the first connector (31) and the second connector (32) that removably connect, described first connector (31) and described first shell (2) are wholely set or removably connect, and described second housing (4) and the second connector (32) are wholely set or removably connect.
4. broadband according to claim 3 cylindricality antenna feeder lightning arrester, it is characterized in that: described first connector (31) and described first shell (2) are threaded connection, described second housing (4) and the second connector (32) are threaded connection, and described first inner core (5) and the second inner core (6) are threaded connection.
5. broadband according to claim 4 cylindricality antenna feeder lightning arrester, is characterized in that: described first connector (31) is also provided with grounding screw rod (312).
6. broadband according to claim 3 cylindricality antenna feeder lightning arrester, it is characterized in that: described top (331) are in direct rod shape and be crimped with connecting ring (330), described first inner core (5) end is provided with screw rod (54), described second inner core (6) end is provided with swivel nut (64), and described screw rod (54) is through described connecting ring (330) and be connected with described swivel nut (64).
7. broadband according to claim 1 cylindricality antenna feeder lightning arrester, is characterized in that: the axial cross section of described toroidal cavity (321) is for circular or square, and the radial section of described connector (3) is circular.
8. broadband according to claim 1 cylindricality antenna feeder lightning arrester, is characterized in that: described cylindrical cavity (322) is isometrical with the inner chamber of the first shell (2) and second housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100053.0U CN204407451U (en) | 2015-02-12 | 2015-02-12 | Broadband cylindricality antenna feeder lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100053.0U CN204407451U (en) | 2015-02-12 | 2015-02-12 | Broadband cylindricality antenna feeder lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407451U true CN204407451U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520100053.0U Expired - Fee Related CN204407451U (en) | 2015-02-12 | 2015-02-12 | Broadband cylindricality antenna feeder lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681901A (en) * | 2015-02-12 | 2015-06-03 | 温州大学 | Broadband cylindrical antenna feeder arrester |
-
2015
- 2015-02-12 CN CN201520100053.0U patent/CN204407451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681901A (en) * | 2015-02-12 | 2015-06-03 | 温州大学 | Broadband cylindrical antenna feeder arrester |
| CN104681901B (en) * | 2015-02-12 | 2017-05-10 | 温州大学 | Broadband cylindrical antenna feeder arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20180212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |