CN203871448U - Broadband coaxial lightning arrester - Google Patents
Broadband coaxial lightning arrester Download PDFInfo
- Publication number
- CN203871448U CN203871448U CN201420277223.8U CN201420277223U CN203871448U CN 203871448 U CN203871448 U CN 203871448U CN 201420277223 U CN201420277223 U CN 201420277223U CN 203871448 U CN203871448 U CN 203871448U
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- coaxial
- lightning arrester
- core
- coaxial core
- short circuit
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Abstract
A broadband coaxial lightning arrester mainly helps to solve the problems appearing in frequency band broadening of an existing coaxial lightning arrester as follows: the frequency band broadening can be realized by utilizing the method of reducing the radius of a short circuit coaxial core, but this method can reduce the current impact resistance capability of the lightning arrester; and the frequency band broadening can also be realized by utilizing the method of increasing the radius of a main coaxial core, but with this method, consumption amount of copper alloy of the coaxial core is increased. The broadband coaxial lightning arrester is characterized in that the inner walls of a main coaxial housing (3) form an equal-diameter through hole; the main coaxial core (5) takes the short circuit coaxial core (6) as a symmetry axis, and the two sides of the main coaxial core are respectively provided with a radially-enlarged bulge loop (52). According to the broadband coaxial lightning arrester, the main coaxial core is provided with the two symmetrical bulge loops, thereby increasing the radius of the main coaxial core and increasing the capacitance, and thus the band width is increased; not only the whole copper consumption amount of the main coaxial core can be reduced, but also under the condition of strong pulses, marginal discharge can be carried out through the radially-enlarged bulge loops, thereby improving the current impact resistance capability of the lightning arrester; and the permeability for high-frequency communication signals is high.
Description
Technical field
The utility model is mainly used in microwave communication field, particularly broadband coaxial lightning arrester.
Background technology
Lightning arrester being reasonably installed to communication equipment is the first-selection that prevents that it from suffering thunderbolt infringement.This lightning arrester must can, thunder and lightning filtering, can not have too much influence to the signal of communication of transmission on the one hand simultaneously.Coaxial lightning arrester is exactly according to the lightning arrester of the spectrum distribution different designs of signal of communication frequency spectrum and lightening pulse.The frequency spectrum of lightening pulse is mainly direct current and the low-frequency component below frequency tens KHz, and communication frequency is all that more than million microwave signal of hundreds of is as 800 ~ 2500MHz, both differ obvious, according to quarter-wave impedance transformation principle, the Design of length of the short-circuit coaxial line in this protector is become to 1/4th of operation wavelength, this short-circuit coaxial line in parallel is for working signal, its impedance infinity, 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.
Existing coaxial lightning arrester is widened the following problem that frequency band can run into: the available method that reduces short circuit coaxial core radius on the one hand of opening up frequently realizes, but this can reduce the shock-resistant current capacity of lightning arrester; Also can adopt the method that increases main coaxial core radius, but this can increase again the copper alloy consumption of coaxial core.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides broadband coaxial lightning arrester, mainly solve existing coaxial lightning arrester and widen the following problem that frequency band runs into: the available method that reduces short circuit coaxial core radius on the one hand of opening up frequently realizes, but this can reduce the shock-resistant current capacity of lightning arrester; Also can adopt the method that increases main coaxial core radius, but this can increase again the copper alloy consumption of coaxial core.
The technical scheme that the utility model adopts is:
A kind of broadband coaxial lightning arrester, comprise housing and core body that coaxial spaced is installed, described housing comprises that the master of at right angle setting electrical connection is mutually with shaft housing and the same shaft housing of short circuit, described core body comprises main coaxial core and the short circuit coaxial core of at right angle setting electrical connection mutually, described main coaxial core two ends are equipped with insulated support and interface portion, the coaxial outer casing inner wall of described master is isometrical through hole, and described main coaxial core is taking short circuit coaxial core as symmetry axis, and both sides are equipped with the bulge loop that radially becomes large.
Described main coaxial core is taking short circuit coaxial core as symmetry axis, and both sides are all also provided with the first cylinder that diameter does not wait, the second cylinder and three cylindrical.
The diameter of described bulge loop is 9 ~ 12mm, the thickness of described bulge loop is 1 ~ 4mm, described master is 16mm with the diameter of bore of shaft housing, described bulge loop center and main coaxial core distance between centers 15 ~ 18mm, the diameter of described the second cylinder is 4 ~ 7mm, the width of described the second cylinder is 7 ~ 9mm, and the diameter of described the first cylinder is 7mm left and right, and the diameter of described three cylindrical is 8 ~ 9mm.
Described short circuit comprises the end cap and the mount pad that removably connect with shaft housing, be provided with some packing rings between described end cap and mount pad.
Described short circuit coaxial core one end is electrically connected with main coaxial core, and the other end passes end cap and is connected with hold-down nut, between described short circuit coaxial core and end cap, is provided with conductive adhesive layer.
Described master is split-type structural with shaft housing and comprises removably connect the first shell and second housing.
Described the first shell and second housing are threaded.
Described housing is made up of stainless steel.
Described end cap and mount pad are threaded.
The beneficial effects of the utility model are: the utility model adopts two symmetrical bulge loops are set in main coaxial core, play and increased main coaxial line radius, thus the effect of increase bandwidth.This not only can reduce the copper consumption of main coaxial core entirety, but also can be under hard pulse, makes bulge loop carry out discharge process, increases lightning arrester and allows the pulse current passing through, strong to the signal of communication permeability of high frequency.
Brief description of the drawings
Fig. 1 is the cutaway view of this novel embodiment.
Fig. 2 is the A place enlarged drawing of this novel embodiment.
Fig. 3 is the standing-wave ratio curve chart of this novel embodiment.
In figure, housing 1, core body 2, main with shaft housing 3, short circuit is with shaft housing 4, main coaxial core 5, insulated support 51, bulge loop 52, interface portion 53, mount pad 42, packing ring 43, hold-down nut 44, conductive adhesive layer 61, the first shell 31, second housing 32, the first cylinders 55, the second cylinder 56, the three cylindricals 57, bulge loop 52.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: if Fig. 1 is in conjunction with as shown in Fig. 2 to Fig. 3, a kind of broadband coaxial lightning arrester, comprise housing 1 and core body 2 that coaxial spaced is installed, the master that described housing 1 comprises at right angle setting mutually electrical connection with shaft housing 3 and short circuit with shaft housing 4, described core body 2 comprises main coaxial core 5 and the short circuit coaxial core 6 of at right angle setting electrical connection mutually, described main coaxial core 5 two ends are equipped with insulated support 51 and interface portion 53, described master is isometrical through hole with shaft housing 3 inwalls, described main coaxial core 5 is taking short circuit coaxial core 6 as symmetry axis, both sides are equipped with the bulge loop 52 that radially becomes large.This embodiment adopts 7/16 interface portion, is provided with contact pin or jack in interface portion 53, and bulge loop 52 has played the effect of capacitor.The utility model adopts two symmetrical bulge loops is set in main coaxial core, has played and has increased main coaxial line radius, thereby increased the effect of bandwidth, and this is novel is not limited to two capacitance sheets, also can according to circumstances rationally arrange.This not only can reduce the copper consumption of main coaxial core entirety, but also can be under hard pulse, makes bulge loop carry out discharge process, and increasing lightning arrester can through-current capacity, strong to the signal of communication permeability of high frequency.
In the utility model, as shown in the figure, described main coaxial core 5 is taking short circuit coaxial core 6 as symmetry axis, and both sides are all also provided with the first cylinder 55, the second cylinder 56 and three cylindricals 57 that diameter does not wait.
In the utility model, as shown in the figure, the diameter of described bulge loop 52 is 9 ~ 12mm, the thickness of described bulge loop 52 is 1 ~ 4mm, and described master is 14 ~ 18mm with the diameter of bore of shaft housing 3, the center distance 15 ~ 18mm of described bulge loop 52 centers and main coaxial core 5, the diameter of described the second cylinder 56 is 4 ~ 7mm, the width of described the second cylinder 56 is 7 ~ 9mm, and the diameter of described the first cylinder 55 is 7mm, and the diameter of described three cylindrical 57 is 8 ~ 9mm.Use the parameter in this size range, can make voltage standing wave ratio of the present utility model in 0.85 ~ 3.1GHz frequency range, be less than 1.16, piece electrical excellent performance.
In the utility model, as shown in the figure, described short circuit comprises the end cap 41 and the mount pad 42 that removably connect with shaft housing 4, be provided with some packing rings 43 between described end cap 41 and mount pad 42.Be provided with some packing rings 43 and ensure that the shell of short circuit part and short circuit coaxial core are uniform all the time in the time of fine setting short circuit part length.
In the utility model, as shown in the figure, described short circuit coaxial core 6 one end are electrically connected with main coaxial core 5, and the other end passes end cap 41 and is connected with hold-down nut 44, between described short circuit coaxial core 6 and end cap 41, is provided with conductive adhesive layer 61.By conductive adhesive layer 61, nut 44, short circuit coaxial core 6 is electrically connected with end cap 41, makes lightning arrester performance more stable.
In the utility model, described master is split-type structural with shaft housing 3 and comprises removably connect the first shell 31 and second housing 32.Split-type structural disconnects conveniently, handling ease, and this is simple in structure, and result of use is good.
In the utility model, as shown in the figure, described the first shell 31 and second housing 32 are threaded.Be threaded to preferred version, simple and practical, safe and reliable, also can adopt other connected modes herein.
In the utility model, as shown in the figure, described housing 1 is made up of stainless steel.Also can adopt the resistant material such as aluminium alloy or copper alloy herein, stainless steel is preferred version, and other can be according to the actual requirements as alternative.
In the utility model, as shown in the figure, end cap 41 and mount pad 42 are threaded.Be threaded to preferred version, simple and practical, safe and reliable, also can adopt other connected modes herein.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.
Claims (9)
1. a broadband coaxial lightning arrester, comprise housing (1) and core body (2) that coaxial spaced is installed, described housing (1) comprises the same shaft housing of master (3) and the same shaft housing of short circuit (4) of at right angle setting electrical connection mutually, described core body (2) comprises main coaxial core (5) and the short circuit coaxial core (6) of at right angle setting electrical connection mutually, described main coaxial core (5) two ends are equipped with insulated support (51) and interface portion (53), it is characterized in that: the same shaft housing of described master (3) inwall is isometrical through hole, described main coaxial core (5) is taking short circuit coaxial core (6) as symmetry axis, both sides are equipped with the bulge loop (52) that radially becomes large.
2. broadband coaxial lightning arrester according to claim 1, it is characterized in that: described main coaxial core (5) is taking short circuit coaxial core (6) as symmetry axis, both sides are all also provided with the first cylinder (55) that diameter does not wait, the second cylinder (56) and three cylindrical (57).
3. broadband coaxial lightning arrester according to claim 2, it is characterized in that: the diameter of described bulge loop (52) is 9 ~ 12mm, the thickness of described bulge loop (52) is 1 ~ 4mm, the diameter of bore of the same shaft housing of described master (3) is 16mm, described bulge loop (52) center and main coaxial core (5) distance between centers 15 ~ 18mm, the diameter of described the second cylinder (56) is 4 ~ 7mm, the width of described the second cylinder (56) is 7 ~ 9mm, the diameter of described the first cylinder (55) is 7mm left and right, and the diameter of described three cylindrical (57) is 8 ~ 9mm.
4. according to the broadband coaxial lightning arrester described in claim 1 or 2 or 3, it is characterized in that: the same shaft housing of described short circuit (4) comprises the end cap (41) and the mount pad (42) that removably connect, between described end cap (41) and mount pad (42), is provided with some packing rings (43).
5. according to the broadband coaxial lightning arrester described in claim 1 or 2 or 3, it is characterized in that: described short circuit coaxial core (6) one end is electrically connected with main coaxial core (5), the other end passes end cap (41) and is connected with hold-down nut (44), between described short circuit coaxial core (6) and end cap (41), is provided with conductive adhesive layer (61).
6. according to the broadband coaxial lightning arrester described in claim 1 or 2 or 3, it is characterized in that: the same shaft housing of described master (3) is for split-type structural and comprise removably connect the first shell (31) and second housing (32).
7. broadband coaxial lightning arrester according to claim 6, is characterized in that: described the first shell (31) and second housing (32) are threaded.
8. broadband coaxial lightning arrester according to claim 7, is characterized in that: described housing (1) is made up of stainless steel.
9. broadband coaxial lightning arrester according to claim 4, is characterized in that: described end cap (41) and mount pad (42) are threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277223.8U CN203871448U (en) | 2014-05-28 | 2014-05-28 | Broadband coaxial lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277223.8U CN203871448U (en) | 2014-05-28 | 2014-05-28 | Broadband coaxial lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871448U true CN203871448U (en) | 2014-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277223.8U Expired - Fee Related CN203871448U (en) | 2014-05-28 | 2014-05-28 | Broadband coaxial lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377407A (en) * | 2014-11-17 | 2015-02-25 | 温州大学 | Direct-current feed type coaxial lightning arrester |
-
2014
- 2014-05-28 CN CN201420277223.8U patent/CN203871448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377407A (en) * | 2014-11-17 | 2015-02-25 | 温州大学 | Direct-current feed type coaxial lightning arrester |
| CN104377407B (en) * | 2014-11-17 | 2017-04-26 | 温州大学 | Direct-current feed type coaxial lightning 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: 20141008 Termination date: 20160528 |