CN207718032U - A kind of insulating splice closure for line feeder fiber composite overhead ground wire - Google Patents

Abstract

The utility model provides a kind of insulating splice closure for line feeder fiber composite overhead ground wire, and the insulating splice closure includes：Shell is used to protect the internal component of the insulating splice closure；Support unit is fixed on pedestal, including supporting rack and planar portions, is used to support optical fiber placement unit and through-flow conductor tab placement unit；Optical fiber placement unit, is fixed on support unit, and fibre-optical splice and remaining optical fiber are sequentially stored for having；Conductor placement unit, is fixed on support unit, and through-flow conductor tab is sequentially stored for having.The insulating splice closure will carry out Fusion Joining and through-flow conductor tab insulation processing with the optical fiber in line feed OPGW stainless steel tubes, realize current lead-through, easy for installation, safe and reliable, be effectively protected communication and power supply safety.

Description

An insulated junction box for line-fed optical fiber composite overhead ground wire

technical field

The utility model relates to an electric power construction device, and more specifically, relates to an insulating splicing box for an optical fiber composite overhead ground wire for power feeding (OPGW (Optical fiber composite overhead ground wire for power feeding, hereinafter referred to as OPGW) fed with a line.

Background technique

UHV AC-DC transmission lines are usually built in remote geographically and harsh environments. The optical relay station in the tower is far away from the power grid and cannot be powered by mains power. The power supply voltage of new energy technologies is unstable and fluctuates widely. In order to improve the reliability of power supply, the optical relay station in the tower can adopt the method of feeding with the line, and supply power to it through the insulated current conductor in the feeding OPGW.

The insulated junction box of OPGW with line feed is mainly used for the connection and branch feed of the feed optical cable in the line feed system. The existing optical fiber composite overhead ground wire splicing box can only realize the function of optical fiber splicing, but cannot realize the splicing and divergent feeding of the current-through conductor in the feeder optical cable.

Utility model content

In order to solve the technical problem that the existing feeder OPGW splice box in the background technology cannot realize the connection of the current-through conductor in the feeder cable and the branched feed, the utility model provides an insulated splice box for feeding OPGW with the line, It is characterized in that the insulating junction box includes:

The housing (10), which is used to protect the internal components of the insulating splice box, the housing (10) includes a box body (11)) and a base (12), wherein the base provides access to optical fibers and current conductors aisle;

a support unit (20), which is fixed on the base (12), and is used to support the optical fiber placement unit (30) and the conductor placement unit (40);

An optical fiber placement unit (30), which is fixed on the support unit (20), is used to store optical fiber connectors and remaining optical fibers;

The conductor placing unit (40), which is fixed on the supporting unit (20), is used for storing the current-through conductor joint.

Further, the insulating splicing box further includes a sealing unit (50), which is used to seal the connection part between the box body (11) and the base (12) and the part where the optical fiber and the current conductor enter and exit the casing (10).

Further, the optical fiber placement unit (30) is an optical fiber splice protector.

Further, the optical fiber placing unit (30) adopts a deck device with a protective upper cover.

Further, the optical fiber splice protector adopts heat-shrinkable or non-heat-shrinkable type.

Further, the conductor placement unit (40) is an insulating and protective ceramic block.

Further, the conductor placement unit (40) is fixed on the support unit (20) by bolts.

Further, there are one or more wiring through holes on both sides of the insulating and protective ceramic block, a copper cylinder is arranged in the through holes, and one or more current conductors can be drawn out of each through hole.

Further, the channels for the entry and exit of optical fibers and current-through conductors on the base (12) can be equipped with solid parts.

Further, the optical fiber placement unit (30) sequentially stores the optical fiber joints and remaining optical fibers, and the conductor placement unit (40) sequentially stores the current-through conductor joints.

The OPGW insulated splicing box for feeding with line provided by the utility model can complete the reliable connection of the current conductor in the feeding optical cable, not only realizes the continuous feeding of the line, but also solves the problem of power supply for the optical middle station in the tower.

Description of drawings

A more complete understanding of the exemplary embodiments of the present invention may be obtained by referring to the following drawings:

Fig. 1 is a schematic cross-sectional view of a feed OPGW according to a specific embodiment of the present invention;

Fig. 2 is a sectional view of an insulating junction box according to a specific embodiment of the present invention;

Fig. 3 is the wiring diagram of the optical fiber in the insulating splicing box of the specific embodiment of the present invention;

Fig. 4 is the wiring diagram of the current-through conductor in the insulating junction box of the specific embodiment of the present invention;

Fig. 5 is a cross-sectional view of the wiring through hole of the insulating protective ceramic block in the insulating junction box according to the specific embodiment of the present invention;

Fig. 6 is a cross-sectional view of an insulating junction box according to another specific embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention are now described with reference to the accompanying drawings; however, the present invention may be implemented in many different forms and are not limited to the embodiments described herein, which are provided for exhaustive and complete The utility model is disclosed and fully conveys the scope of the utility model to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units/elements are given the same reference numerals.

Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or overly formal meanings.

Fig. 1 is a schematic cross-sectional view of a feed OPGW according to a specific embodiment of the present invention. As shown in Figure 1, the feed OPGW100 of the present invention includes a stainless steel tube optical fiber unit 1, a plurality of metal sleeve current conductor units 2, and the stainless steel tube optical fiber unit 1 and the metal sleeve current conductor unit 2 are stranded Twisted strands 3 together. Wherein, the twisted strands 3 are divided into central layer monofilament strands and outer layer monofilament strands, both of which are used to improve the mechanical strength of the power feeding OPGW.

Fig. 2 is a cross-sectional view of an insulating junction box according to a specific embodiment of the present invention. As shown in Figure 2, the insulating junction box includes:

The casing (10), which is used to protect the internal components of the insulating splicing box, the casing (10) includes a box body (11)) and a base (12), wherein the base (12) is an optical fiber and a flow-through Conductors provide access;

a support unit (20), which is fixed on the base (12), and is used to support the optical fiber placement unit (30) and the conductor placement unit (40);

An optical fiber placement unit (30), which is fixed on the support unit (20), is used to store optical fiber connectors and remaining optical fibers;

Preferably, the optical fiber placement unit (30) is an optical fiber splice protector, and the optical fiber splice protector can be heat-shrinkable or non-heat-shrinkable.

Preferably, the optical fiber placement unit (30) adopts a deck device with a protective upper cover.

The conductor placement unit (40), which is fixed on the support unit (20), is used to sequentially store the current-through conductor joints. In this example, the conductor placement unit (40) is an insulating and protective ceramic block, which is connected by a bolt Fastened to the support unit (20).

Fig. 3 is a wiring diagram of optical fibers in the insulating splice closure according to the specific embodiment of the present invention. As shown in Fig. 3, the optical fiber placement unit (30) sequentially stores optical fiber connectors and remaining optical fibers, and enters and exits the casing through the through hole on the base (12).

Fig. 4 is a wiring diagram of the current-through conductor in the insulated junction box according to the specific embodiment of the present invention. As shown in FIG. 4, the conductor placement unit (40) sequentially stores the current-through conductor joints. In this embodiment, the conductor placement unit is an insulating and protective ceramic block.

Fig. 5 is a cross-sectional view of the wiring through hole of the insulating protective ceramic block in the insulating junction box according to the specific embodiment of the present invention. As shown in Figure 5, there are one or more wiring through holes on both sides of the insulating and protective ceramic block, a copper cylinder is arranged in the through holes, and one or more current-through conductors can be drawn out of each through hole , the current conductor enters and exits the shell through the through hole on the base (12).

Preferably, the channels for the entry and exit of optical fibers and current conductors on the base (12) can be equipped with solid parts.

Fig. 6 is a cross-sectional view of an insulating junction box according to another specific embodiment of the present invention. As shown in Figure 6, in addition to the housing (10), support unit (20), optical fiber placement unit (30) and conductor placement unit (40), the insulated splice box also includes a sealing unit (50), which is used for The part where the box body (11) is connected to the base (12) and the part where the optical fiber and the current conductor enter and leave the casing (10) are sealed.

Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise therein. All references to "a/the/the [means, component, etc.]" are to be construed openly as at least one instance of said means, component, etc., unless expressly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.

Claims (10)

1. An insulated splicing box for feeding with line-fed optical fiber composite overhead ground wire, characterized in that, the insulated splicing box comprises: An outer shell (10), which is used to protect the internal components of the insulating splice box, the outer shell (10) includes a box body (11) and a base (12), wherein the base provides access channels for optical fibers and current-through conductors ; a support unit (20), which is fixed on the base (12), and is used to support the optical fiber placement unit (30) and the conductor placement unit (40); An optical fiber placement unit (30), which is fixed on the support unit (20), is used to store optical fiber connectors and remaining optical fibers; The conductor placing unit (40), which is fixed on the supporting unit (20), is used for storing the current-through conductor joint. 2. The insulating junction box according to claim 1, characterized in that, the insulating junction box further comprises a sealing unit (50), which is used to seal the connection part between the box body (11) and the base (12) and The part where the optical fiber and the current-through conductor go in and out of the shell (10). 3. The insulated splice closure according to claim 1, characterized in that the optical fiber placement unit (30) is a fiber optic splice protector. 4. The insulated splice closure according to claim 2 or 3, characterized in that the optical fiber placing unit (30) adopts a card seat device with a protective upper cover. 5 . The insulated splice closure according to claim 3 , wherein the optical fiber splice protector adopts heat-shrinkable or non-heat-shrinkable type. 6 . 6. The insulating junction box according to claim 1, characterized in that, the conductor placement unit (40) is an insulating and protective ceramic block. 7. The insulating junction box according to claim 1, characterized in that, the conductor placement unit (40) is fixed on the support unit (20) by bolts. 8. The insulating junction box according to claim 6, characterized in that there are one or more wiring through holes on both sides of the insulating and protective ceramic block, a copper cylinder is arranged in the through holes, and each through hole One or more current-through conductors can be drawn from the inside. 9. The insulated splice box according to claim 1, characterized in that, on the base (12), the channels for the entry and exit of optical fibers and current-through conductors can be equipped with solid parts. 10. The insulated splice closure according to claim 1, characterized in that, the optical fiber placement unit (30) sequentially stores optical fiber connectors and remaining optical fibers, and the conductor placement unit (40) sequentially stores through-flow Conductor splices.