CN111261986A - High-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device - Google Patents
High-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device Download PDFInfo
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- CN111261986A CN111261986A CN201811451456.4A CN201811451456A CN111261986A CN 111261986 A CN111261986 A CN 111261986A CN 201811451456 A CN201811451456 A CN 201811451456A CN 111261986 A CN111261986 A CN 111261986A
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- connecting interface
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- blocking
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
- H01P1/36—Isolators
Abstract
The invention discloses a high-frequency narrow-band self-repairing internal and external blocking coaxial high-voltage blocking device which comprises a first connecting interface, a wide band and a second connecting interface, wherein an inner conductor insulator is arranged in the center of the interior of the wide band, an outer conductor insulator is arranged on the side wall of the interior of the wide band, a first fixing end and a second fixing end are respectively arranged at two ends of the wide band, one ends of the first fixing end and the second fixing end, which are far away from the wide band, are respectively provided with the first connecting interface and the second connecting interface, and conductor inner needles are respectively arranged in the centers of the first connecting interface and the second connecting interface. According to the invention, the first connecting interface, the broadband and the second connecting interface are arranged, and the polyurethane high-voltage resistant layer is arranged in the first connecting interface, the broadband and the second connecting interface, so that the device can be repeatedly and normally used under the condition of lower than the design voltage after being subjected to high-voltage breakdown, and is suitable for blocking a high-voltage wire and convenient to use.
Description
Technical Field
The invention relates to the technical field of DC isolators, in particular to a high-frequency narrow-band self-repairing internal and external DC-isolating coaxial high-voltage DC isolator.
Background
With the continuous development of the society and the use of cable wires, the DC blocking device is applied to a connecting system of the cable wires, a DC blocking circuit is blocked through the DC blocking device, the high-pass filtering effect with lower cut-off frequency is achieved, and radio frequency energy signals of specific frequency points can be transmitted through the normal DC blocking requirement of radio frequency coaxial products.
Ordinary radio frequency high voltage dc insulator just can't normal use under vacuum state and a breakdown back, need change the maintenance, use cost is higher, and current dc insulator can't use under high-voltage condition in addition, and the suitability is not good, and the most anticorrosive performance of current dc insulator is not good simultaneously, and the rigidity is not good, and insulating effect is not good, can't use for a long time, and life is not good.
Disclosure of Invention
The invention aims to provide a high-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device, and aims to solve the problems that a common radio-frequency high-voltage blocking device provided in the background technology cannot be normally used in a vacuum state and after one-time breakdown, needs to be replaced and maintained, and is high in use cost.
In order to achieve the purpose, the invention provides the following technical scheme: a coaxial high-voltage DC isolator for isolating inside and outside a high-frequency narrow band self-repairing device comprises a first connecting interface, a wide band and a second connecting interface, wherein an inner conductor is installed at the center inside the wide band and is insulated, an outer conductor is installed on the side wall inside the wide band and is insulated, a first fixing end and a second fixing end are installed at two ends of the wide band respectively, a first connecting interface and a second connecting interface are installed at one ends, far away from the wide band, of the first fixing end and one end, far away from the wide band, of the second fixing end respectively, an inner conductor needle is installed at the center inside of each of the first connecting interface and the second connecting interface, fixing rings are installed inside each of the first connecting interface and the second connecting interface outside the inner conductor needle, external threads are arranged on the outer side wall of the first connecting interface, gripping rings are arranged on the outer side wall of the second connecting interface, and stainless steel anti-corrosion layers are coated on the outer side, and inside ceramic insulation layer that all is equipped with of first connection interface, broadband and the second connection interface of stainless steel anticorrosive coating one side, and inside alloy rigid layer that all is equipped with of first connection interface, broadband and the second connection interface of ceramic insulation layer one side, and one side on alloy rigid layer all is equipped with the glass fiber insulating layer, the inside of first connection interface, broadband and the second connection interface of glass fiber insulating layer one side all is equipped with the resistant high-pressure layer of polyurethane.
Preferably, the diameter of the first connection interface is smaller than the diameter of the second connection interface.
Preferably, a groove is formed in the outer side wall of the first fixing end.
Preferably, an inner thread is arranged on the inner side wall of the second connecting interface.
Preferably, a microwave energy signal channel is arranged between the inner conductor insulation and the outer conductor insulation, the standing-wave ratio of the limited microwave signal is less than or equal to 1.15, and the attenuation is less than 0.3 dB.
Preferably, the alloy rigid layer is uniformly filled with reinforcing ribs, the reinforcing ribs are all of I-shaped structures, and the first connecting interface, the wide band and the second connecting interface form a rigid structure through the alloy rigid layer and the reinforcing ribs.
Compared with the prior art, the invention has the beneficial effects that: the coaxial high-voltage DC isolator for high-frequency narrow-band self-repairing inner and outer DC isolation is provided with a first connecting interface, a broadband and a second connecting interface, wherein the center inside the broadband is provided with an inner conductor insulator, the side wall inside the broadband is provided with an outer conductor insulator, the physical insulation between the inner conductor and the inner conductor as well as between the outer conductor and the outer conductor between two wires is conveniently increased through the inner conductor insulator and the outer conductor insulator, the device can conveniently block current and effectively ensure the transmission of signals, the use of the device is convenient, the two ends of the broadband are respectively provided with a first fixed end and a second fixed end, the ends of the first fixed end and the second fixed end, which are far away from the broadband, are respectively provided with the first connecting interface and the second connecting interface, the device is conveniently fixed with the two connecting wires through the first connecting interface and the second connecting interface, the fixed installation between the device and the wires is convenient, and, the outer side walls of the first connecting interface, the broadband and the second connecting interface are coated with stainless steel anticorrosive layers, so that the waterproof and anticorrosive capacity of the surface of the device is increased, the corrosion damage caused by the environmental influence in the using process of the device is avoided, the service life of the device is prolonged, one side of each stainless steel anticorrosive layer is provided with a ceramic heat-insulating layer, the influence of the external environmental temperature on the use of the device is avoided, one side of each ceramic heat-insulating layer is provided with an alloy rigid layer, the structural strength of the device is increased through the alloy rigid layer and reinforcing ribs inside the alloy rigid layer, the use of the device is facilitated, one side of each alloy rigid layer is provided with a glass fiber insulating layer, the insulativity of the device in the using process is facilitated, the interference of signals in the environment on the device is avoided, and the insulating effect of the device is facilitated to be increased, one side of each glass, can also relapse normal use under being less than the condition of design voltage, the device of being convenient for is applicable to the stopping of high-voltage wire, reduces artifical the maintenance, reduces use cost.
Drawings
FIG. 1 is a schematic view of a DC blocking device according to the present invention;
FIG. 2 is a schematic side view of the DC spacer of the present invention;
fig. 3 is a schematic partial cross-sectional view of the first connection interface, the broadband, and the second connection interface of the present invention.
In the figure: 1. a first connection interface; 2. a first fixed end; 3. a broadband; 4. a second fixed end; 5. a second connection interface; 6. an external thread; 7. a groove; 8. insulating an inner conductor; 9. insulating an outer conductor; 10. a gripping ring; 11. a conductor inner needle; 12. a fixing ring; 13. a ceramic insulating layer; 14. an alloy rigid layer; 15. a fiberglass insulation layer; 16. a stainless steel anticorrosive layer; 17. reinforcing ribs; 18. a polyurethane high pressure resistant layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention is shown: a high-frequency narrow-band self-repairing internal and external DC blocking coaxial high-voltage DC blocking device comprises a first connecting interface 1, a broadband 3 and a second connecting interface 5, wherein an inner conductor insulator 8 is arranged in the center of the inside of the broadband 3, an outer conductor insulator 9 is arranged on the side wall of the inside of the broadband 3, a microwave energy signal channel is arranged between the inner conductor insulator 8 and the outer conductor insulator 9, the standing-wave ratio of limited microwave signals is less than or equal to 1.15, the attenuation is less than 0.3dB, the device can meet the requirement of required isolated DC voltage and simultaneously ensure that certain microwave energy signals can pass through the bandwidth, the device can be repeatedly and normally used under the condition of being lower than the designed voltage after being punctured by ultrahigh voltage, the device is convenient to use, a first fixed end 2 and a second fixed end 4 are respectively arranged at two ends of the broadband 3, a groove 7 is arranged on the outer side wall of the first fixed end 2, and the device, the device is convenient to clamp a wire into the first fixed end 2, the device is convenient to install and use, one ends of the first fixed end 2 and the second fixed end 4, which are far away from the broadband 3, are respectively provided with a first connecting interface 1 and a second connecting interface 5, the diameter of the first connecting interface 1 is smaller than that of the second connecting interface 5, the device is convenient to clamp two wires with different sizes, the device is convenient to use, the centers inside the first connecting interface 1 and the second connecting interface 5 are both provided with a conductor inner needle 11, the inside of the first connecting interface 1 and the inside of the second connecting interface 5 outside the conductor inner needle 11 are both provided with fixing rings 12, the outer side wall of the first connecting interface 1 is provided with external threads 6, the outer side wall of the second connecting interface 5 is provided with a gripping ring 10, the inner side wall of the second connecting interface 5 is provided with internal threads, and the wire interfaces and the second connecting interface 5 are convenient, the outer side walls of the first connecting interface 1, the broadband 3 and the second connecting interface 5 are coated with a stainless steel anticorrosive layer 16, the first connecting interface 1, the broadband 3 and the second connecting interface 5 on one side of the stainless steel anticorrosive layer 16 are internally provided with a ceramic heat-insulating layer 13, the first connecting interface 1, the broadband 3 and the second connecting interface 5 on one side of the ceramic heat-insulating layer 13 are internally provided with an alloy rigid layer 14, the alloy rigid layer 14 is uniformly filled with reinforcing ribs 17, the reinforcing ribs 17 are all in an I-shaped structure, the first connecting interface 1, the broadband 3 and the second connecting interface 5 form a rigid structure through the alloy rigid layer 14 and the reinforcing ribs 17, the structural strength of the alloy rigid layer 14 is conveniently increased through the reinforcing ribs 17, the structural strength of the first connecting interface 1, the broadband 3 and the second connecting interface 5 is conveniently increased effectively, and the device is convenient to use, and one side of the alloy rigid layer 14 is provided with a glass fiber insulating layer 15, and the interiors of the first connecting interface 1, the broadband 3 and the second connecting interface 5 on one side of the glass fiber insulating layer 15 are provided with polyurethane high-pressure resistant layers 18.
The working principle is as follows: when in use, firstly two wires which need to be isolated are respectively fixed inside the first connection interface 1 and the second connection interface 5, so that the conductor inner needle 11 inside the first connection interface 1 and the second connection interface 5 is connected with the conductor at the center inside the two wires, the physical insulation between the inner conductor and the inner conductor as well as between the outer conductor and the outer conductor between the two wires is increased by the inner conductor insulation 8 and the outer conductor insulation 9, the device can effectively ensure the transmission of signals while blocking current, a microwave energy signal channel is arranged between the inner conductor insulation 8 and the outer conductor insulation 9, the standing wave ratio of a microwave signal is limited to be less than or equal to 1.15, the attenuation is less than 0.3dB, the device can meet the requirement of isolating direct current voltage, and simultaneously ensure that a certain microwave energy signal passes through the bandwidth, and the device can be repeatedly and normally used under the condition of lower than the design voltage after being punctured by ultrahigh voltage, in the device use, stainless steel anticorrosive coating 16 can effectively increase the waterproof and anticorrosion ability on device surface, avoid receiving environmental impact in the device use to cause corrosion damage, be convenient for increase the life of device, ceramic heat preservation 13 can effectively avoid external environment temperature to produce the influence to the device use, alloy rigid layer 14 can effectively increase the structural strength of device, be convenient for the use of device, glass fiber insulating layer 15 can effectively increase the insulating nature in the device use, avoid the signal in the environment to disturb the device, be convenient for increase the insulating effect of device, polyurethane is able to bear or endure high voltage layer 18 and makes the device after receiving high voltage breakdown, can also relapse normal use under the condition that is less than design voltage, be convenient for the device is applicable to the stopping of high voltage conductor, reduce artifical the maintenance, use cost is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a coaxial high-pressure DC blocking device of inside and outside stopping of high frequency narrowband selfreparing, includes first connection interface (1), broadband (3) and second connection interface (5), its characterized in that: the inner conductor insulation (8) is installed in the center of the inner portion of the broadband (3), the outer conductor insulation (9) is installed on the side wall of the inner portion of the broadband (3), the first fixed end (2) and the second fixed end (4) are installed at the two ends of the broadband (3) respectively, the first connecting interface (1) and the second connecting interface (5) are installed at the end, far away from the broadband (3), of the first fixed end (2) and the second fixed end (4), the conductor inner needle (11) is installed in the center of the inner portions of the first connecting interface (1) and the second connecting interface (5), the fixing ring (12) is installed in the first connecting interface (1) and the second connecting interface (5) outside the conductor inner needle (11), the outer side wall of the first connecting interface (1) is provided with the outer thread (6), and the outer side wall of the second connecting interface (5) is provided with the holding ring (10), all coat on the lateral wall of first connection interface (1), broadband (3) and second connection interface (5) and have stainless steel anticorrosive coating (16), and first connection interface (1) of stainless steel anticorrosive coating (16) one side, inside ceramic heat preservation (13) all being equipped with of broadband (3) and second connection interface (5), and first connection interface (1), broadband (3) and second connection interface (5) inside of ceramic heat preservation (13) one side all are equipped with alloy rigid layer (14), and one side of alloy rigid layer (14) all is equipped with glass fiber insulating layer (15), the inside of first connection interface (1), broadband (3) and second connection interface (5) of glass fiber insulating layer (15) one side all is equipped with polyurethane high-pressure resistant layer (18).
2. The high-frequency narrow-band self-repairing inner and outer DC-blocking coaxial high-voltage DC blocking device as claimed in claim 1, wherein: the diameter of the first connecting interface (1) is smaller than that of the second connecting interface (5).
3. The high-frequency narrow-band self-repairing inner and outer DC-blocking coaxial high-voltage DC blocking device as claimed in claim 1, wherein: the outer side wall of the first fixed end (2) is provided with a groove (7).
4. The high-frequency narrow-band self-repairing inner and outer DC-blocking coaxial high-voltage DC blocking device as claimed in claim 1, wherein: and an internal thread is arranged on the inner side wall of the second connecting interface (5).
5. The high-frequency narrow-band self-repairing inner and outer DC-blocking coaxial high-voltage DC blocking device as claimed in claim 1, wherein: a microwave energy signal channel is arranged between the inner conductor insulation (8) and the outer conductor insulation (9), the standing-wave ratio of limited microwave signals is less than or equal to 1.15, and the attenuation is less than 0.3 dB.
6. The high-frequency narrow-band self-repairing inner and outer DC-blocking coaxial high-voltage DC blocking device as claimed in claim 1, wherein: the inner part of the alloy rigid layer (14) is uniformly filled with reinforcing ribs (17), the reinforcing ribs (17) are all arranged in an I-shaped structure, and the first connecting interface (1), the broadband (3) and the second connecting interface (5) all form a rigid structure through the alloy rigid layer (14) and the reinforcing ribs (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451456.4A CN111261986A (en) | 2018-11-30 | 2018-11-30 | High-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451456.4A CN111261986A (en) | 2018-11-30 | 2018-11-30 | High-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device |
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| CN111261986A true CN111261986A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811451456.4A Pending CN111261986A (en) | 2018-11-30 | 2018-11-30 | High-frequency narrow-band self-repairing inner and outer blocking coaxial high-voltage blocking device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554608A (en) * | 1982-11-15 | 1985-11-19 | Block Roger R | Connector for electromagnetic impulse suppression |
| US20040219838A1 (en) * | 2000-11-14 | 2004-11-04 | Corning Gilbert Inc. | Surge protected coaxial termination |
| CN103825072A (en) * | 2014-03-03 | 2014-05-28 | 江苏荣联科技发展股份有限公司 | Ceramic capacitor direct-current breaker |
| CN203674492U (en) * | 2013-12-27 | 2014-06-25 | 上海华湘计算机通讯工程有限公司 | Inner and outer conductor voltage-resistant DC block |
| CN206236928U (en) * | 2016-06-30 | 2017-06-09 | 陕西华达通讯技术有限公司 | A kind of non-contact radio-frequency capacitance coupling type coaxial connector |
| CN206489898U (en) * | 2017-02-09 | 2017-09-12 | 珠海汉胜科技股份有限公司 | A kind of direct current separates CA cable assembly |
-
2018
- 2018-11-30 CN CN201811451456.4A patent/CN111261986A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554608A (en) * | 1982-11-15 | 1985-11-19 | Block Roger R | Connector for electromagnetic impulse suppression |
| US20040219838A1 (en) * | 2000-11-14 | 2004-11-04 | Corning Gilbert Inc. | Surge protected coaxial termination |
| CN203674492U (en) * | 2013-12-27 | 2014-06-25 | 上海华湘计算机通讯工程有限公司 | Inner and outer conductor voltage-resistant DC block |
| CN103825072A (en) * | 2014-03-03 | 2014-05-28 | 江苏荣联科技发展股份有限公司 | Ceramic capacitor direct-current breaker |
| CN206236928U (en) * | 2016-06-30 | 2017-06-09 | 陕西华达通讯技术有限公司 | A kind of non-contact radio-frequency capacitance coupling type coaxial connector |
| CN206489898U (en) * | 2017-02-09 | 2017-09-12 | 珠海汉胜科技股份有限公司 | A kind of direct current separates CA cable assembly |
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